Electronic device enclosure

An electronic device enclosure comprises a securing plate and a bracket adapted to receive an I/O connector therein. The bracket comprises a first resilient piece, a second resilient piece, a first retaining piece and a second retaining piece. The bracket is capable of securing to the front wall in a first position, where the first resilient piece and the first retaining piece abut two opposite surfaces of the securing plate, and a second position, where the second resilient piece and the second retaining piece abut the two opposite surfaces of the securing plate.

ELECTRONIC DEVICE ENCLOSURE FOR RECEIVING STORAGE DEVICE

An electronic device with a storage device enclosure is disclosed. The electronic device enclosure comprises a chassis comprising a bottom plate and a side plate substantially perpendicular to the bottom plate; a securing member attached to the side plate and comprising a plurality of positioning slots; a bracket rotatably attached to the side plate about a pivoting axis substantially parallel to the bottom plate relative to the chassis; the bracket comprising a side panel substantially perpendicular to the side plate; a blocking portion located on the side panel, and the blocking portion being elastic and engaged in one of the plurality of positioning slots. 1. An electronic device enclosure , comprising:a chassis comprising a bottom plate and a side plate substantially perpendicular to the bottom plate;a securing member attached to the side plate and comprising a plurality of positioning slots;a bracket rotatably attached to the side plate about a pivoting axis substantially parallel to the bottom plate relative to the chassis; the bracket comprising a side panel substantially perpendicular to the side plate; a blocking portion located on the side panel, and the blocking portion being elastic and engaged in one of the plurality of positioning slots.2. The electronic device enclosure of claim 1 , wherein a blocking piece extends from a bottom edge of the side panel claim 1 , and the blocking portion is located on an outer surface of the blocking piece.3. The electronic device enclosure of claim 1 , wherein the plurality of positioning slots is arranged at an arc.4. The electronic device enclosure of claim 1 , wherein the chassis further comprises a securing plate substantially perpendicular to the side plate claim 1 , and the securing member is attached to the securing plate.5. The electronic device enclosure of claim 4 , wherein the securing plate defines a through hole and a retaining tab extends from an edge of the through hole claim 4 , the securing member ...

DISK DRIVE ASSEMBLY

A disk drive assembly includes a disk drive, a drive bracket, and a securing member. The disk drive includes a sidewall with a securing hole. The drive bracket receives the disk drive therein. The drive bracket includes a first side panel. The first side panel includes a side panel body substantially parallel to the sidewall and a securing tab extending from the side panel body. A through hole is defined in the side panel body. A securing slot is defined in the securing tab. The securing member includes a member panel, a pivoting portion, and a securing portion. The pivoting portion is pivotably mounted to the first side panel. The member panel includes a positioning tab passing through the through hole to be inserted in the securing hole. The securing portion engages with the securing slot to prevent the securing member from moving away from the first side panel. 1. A disk drive assembly comprising:a disk drive, the disk drive comprising a sidewall, a securing hole defined in the sidewall;a drive bracket, the drive bracket receiving the disk drive therein, the drive bracket comprising a first side panel, the first side panel comprising a side panel body substantially parallel to the sidewall and a securing tab extending from the side panel body; a through hole defined in the side panel body; and a securing slot defined in the securing tab; anda securing member, the securing member comprising a member panel, a pivoting portion extending from the member panel, and a securing portion extending from the member panel; the pivoting portion pivotably mounted to the first side panel; the member panel comprising a positioning tab passing through the through hole to be inserted in the securing hole; and the securing portion engaging with the securing slot to prevent the securing member from moving away from the first side panel.2. The disk drive assembly of claim 1 , wherein the securing portion comprises a resilient arm extending from the member panel claim 1 , a securing ...

MOUNTING ASSEMBLY FOR STORAGE DEVICE

A mounting assembly includes an enclosure, a mounting device and a resilient member. The enclosure defines a mounting hole. The mounting device includes an engaging member, a drive member, and an engaging rod. A positioning groove and a clipping groove are defined in the engaging member. The drive member includes a limiting block. The resilient member is surrounding the engaging rod. The drive member is moveable relative to the engaging member between an unlocked position and a locked position, in the unlocked position, the limiting block is received in the positioning groove, and the engaging rod does not extend through the mounting hole; and in the locked position, the resilient member is deformed, and the limiting block is engaged in the clipping groove to keep the engaging rod extending through the mounting hole to engage with a storage device. 1. A mounting assembly comprising:an enclosure defining a mounting hole;an engaging member connected to the enclosure;a drive member moveably connected to the engaging member, and comprising a limiting block;an engaging rod attached to the drive member, and defining a positioning groove and a clipping groove therein;a resilient member surrounding the engaging rod;wherein the drive member is moveable relative to the engaging member between an unlocked position and a locked position, in the unlocked position, the limiting block is received in the positioning groove, and the engaging rod does not extend through the mounting hole; and in the locked position, the resilient member is deformed, and the limiting block is engaged in the clipping groove to keep the engaging rod extending through the mounting hole to engage with a storage device.2. The mounting assembly of claim 1 , wherein the drive member rotates relative to the engaging member to disengage the limiting block from the clipping groove.3. The mounting assembly of claim 1 , wherein the engaging member comprises a first positioning block and a second positioning block ...

MOUNTING APPARATUS FOR DATA STORAGE DEVICE

A mounting apparatus for mounting a data storage device includes a sliding member, a drive bracket, and a rotating member. The drive bracket includes a first side plate. A sliding groove is defined in the first side plate. The sliding member is received in the sliding groove. The rotating member is pivotally mounted to the first side plate. A curled piece and an arm are located on opposite ends of the rotating member. The arm defines a restricting room. The rotating member is adapted to rotate on the first side plate between a first position and a second position. In the first position, the curled piece abuts the first side plate and is elastically deformed by the first side plate, and the sliding member is disengaged from the restricting room. In the second position, the curled piece is released, and the restricting room receives and restricts the sliding member therein. 1. A mounting apparatus for mounting a data storage device , comprising:a sliding member;a drive bracket comprising a first side plate, a sliding groove defined in the first side plate, the sliding member received in the sliding groove; anda rotating member pivotally mounted to the first side plate, a curled piece and an arm located on opposite ends of the rotating member, the arm defining a restricting room, wherein the rotating member is adapted to rotate on the first side plate between a first position and a second position; in the first position, the curled piece abuts the first side plate and is elastically deformed by the first side plate, and the sliding member is disengaged from the restricting room; in the second position, the curled piece is released, and the restricting room receives and restricts the sliding member therein.2. The mounting apparatus of claim 1 , wherein a resisting block is connected to a distal end of the curled piece claim 1 , the first side plate defines a receiving slot claim 1 , and the resisting block abuts a top edge of the receiving slot in the first position.3. ...

COMPUTER ENCLOSURE WITH SECURING MEMBER

A computer enclosure comprises a chassis with a first securing hole; a cover plate detachably attached to the chassis, a second securing hole defined in the cover plate and aligned with the first securing hole; and a securing member comprising a fastener and a coil spring; the fastener comprises a head, and a shaft extending from the head; the coil spring is attached to the shaft and between the head and the cover plate; and the shaft extends into the second securing hole, wherein the fastener is movable between released and locked positions; in the released position, the shaft is disengaged from the first securing hole, the coil spring is not compressed, and the cover plate is detachable from the chassis; in a locked position, the shaft is engaged into the first securing hole, the coil spring is compressed, and the cover plate is secured to the chassis. 1. A computer enclosure comprising:a chassis with a first securing hole;a cover plate detachably attached to the chassis, a second securing hole defined in the cover plate and aligned with the first securing hole; anda securing member comprising a fastener and a coil spring; wherein the fastener comprises a head, and a shaft extending from the head; the coil spring is attached to the shaft and located between the head of the fastener and the cover plate; and the shaft extends into the second securing hole,wherein the fastener is movable between a released position and a locked position; in the released position, the shaft is disengaged from the first securing hole, the coil spring is not compressed, and the cover plate is detachable from the chassis; in a locked position, the shaft is engaged into the first securing hole, the coil spring is compressed, and the cover plate is secured to the chassis.2. The computer enclosure of claim 1 , wherein the shaft comprises a threaded end claim 1 , and a cylindrical main body connected between the head and the threaded end of the fastener claim 1 , and the coil spring ...

ELECTRONIC DEVICE WITH AIRFLOW GUIDING DUCT

An electronic device includes an enclosure, and an airflow guiding duct. The enclosure includes a bottom panel. The airflow guiding duct is pivotably mounted to the enclosure. The airflow guiding duct includes a positioning portion. The bottom panel defines a sliding slot. A positioning opening is defined in the bottom panel communicating with the sliding slot. The positioning portion is used for being driven to slide along the sliding slot to move into the positioning opening when the airflow guiding duct is rotated. 1. An electronic device , comprising:an enclosure, the enclosure comprising a bottom panel, the bottom panel defining a sliding slot, a positioning opening defined in the bottom panel communicating with the sliding slot; andan airflow guiding duct, the airflow guiding duct pivotably mounted to the enclosure, the airflow guiding duct comprising a positioning portion, the positioning portion adapted to move along the sliding slot to engage with the positioning opening to prevent the airflow guiding duct from moving in a direction substantially perpendicular to the bottom panel when the airflow guiding duct rotates about a pivoting axis substantially parallel to the bottom panel.2. The electronic device of claim 1 , wherein the airflow guiding duct comprises a first recess portion and a second recess portion; the enclosure further comprises a mounting panel; the mounting panel comprises an elastic tab; and the elastic tab is adapted to be disposed in the first recess portion to enable the airflow guiding duct to be in a first position or be disposed in the second recess portion to enable the airflow guiding duct to be in a second position.3. The electronic device of claim 2 , wherein a free end of the elastic tab comprises a positioning protrusion corresponding to the first recess portion and the second recess portion.4. The electronic device of claim 1 , wherein the airflow guiding duct comprises a bottom wall claim 1 , a first sidewall extending from ...

MOUNTING APPARATUS ASSEMBLY

A mounting apparatus assembly includes a data storage bracket, a computer enclosure, a mounting member fixed on the data storage bracket and a guiding rail fixed on the computer enclosure. A mounting portion is installed on the mounting member. A plurality of mounting slots is located on the guiding rail. When the bracket rotates relative to the computer enclosure, the mounting portion moves along the guiding rail and engages with the plurality of mounting slots, and the data storage bracket is installed at a required position on the computer enclosure. 1. A mounting apparatus assembly , comprising:a data storage bracket;a mounting member fixed on the data storage bracket; the mounting member comprises a mounting portion on the mounting member;a computer enclosure; anda guiding rail fixed on the computer enclosure; the guiding rail comprises a plurality of mounting slots on the guiding rail; wherein the mounting portion is adapted to move along the guiding rail and to engage with the plurality of mounting slots when the data storage bracket is rotated relative to the computer enclosure, and the data storage bracket is located at a required position on the computer enclosure.2. The mounting apparatus assembly of claim 1 , wherein the data storage bracket comprises a sidewall; the sidewall comprise a slot for accommodating the mounting member claim 1 , two first mounting slices extend from two side edges of the slot claim 1 , and a mounting hole defined in each of the two first mounting slices; the mounting member comprises two first fixing slices extend from two side edges of the mounting member; and each of the two first fixing slices are configured to pass through the mounting hole on each of the two first mounting slices.3. The mounting apparatus assembly of claim 2 , wherein two second mounting slices extend from two side edges of the slot; two second fixing slices extend from two side edges of the mounting member adjacent to the two first fixing slices; and the ...

Computer chassis for mounting motherboard therein

A computer chassis includes an enclosure and a motherboard. The enclosure includes a bottom plate and a rear plate. A plurality of convex projections is located on the bottom plate. Each of the plurality of convex projections defines a first mounting hole. A first restricting piece is located on the bottom plate. The motherboard defines a plurality of second mounting holes. The motherboard is located on the plurality of convex projections and between the rear plate and the first restricting piece with a front edge of the motherboard abutting the first restricting piece and a rear edge of the motherboard abutting the rear plate. The plurality of second mounting holes of the motherboard is aligned to the first mounting holes of the plurality of convex projections.

SUPPORTING BRACKET FOR COMPUTER MONITOR

A supporting bracket for a monitor includes a stand and a control structure. The stand comprises a pole. The control structure comprises a installation member, a clamping member, a resilient member and a control member. The installation member comprises an installation portion in which an installation hole is defined. The clamping member is engaged in the installation hole and against the pole. The resilient member is sandwiched between the inside wall of the installation portion and the clamping member. The control member is installed in the installation member. The control member is rotatable relative to the installation member to modulate a friction between the pole and the clamping member. 1. A supporting bracket comprising:a stand comprising a pole; anda control structure, the control structure comprising an installation member, a clamping member, a resilient member, and a control member; the installation member comprising an installation portion, the installation portion defining an installation hole, the clamping member engaged in the installation hole and abuts the pole, the resilient member located between the installation portion and the clamping member, the control member installed in the installation member, and the control member is rotatable relative to the installation member, to change a friction between the pole and the clamping member.2. The supporting bracket of claim 1 , wherein the control structure further comprises a blocking member engaged in the installation hole claim 1 , and the blocking member is engaged with the clamping member.3. The supporting bracket of claim 2 , wherein the clamping member further comprises a first holding piece and a second holding piece that is parallel to the first holding piece claim 2 , the blocking member comprises a blocking portion claim 2 , a gap and a slot are defined in the blocking portion claim 2 , the first holding piece is received in the gap claim 2 , and the second holding piece is engaged in the ...

SUPPORTING BRACKET FOR COMPUTER MONITOR DEVICE

A supporting bracket for a monitor device includes a stand and a controlling structure. The stand comprises a shank. The controlling structure comprising an installation member, a blocking member, a clamping member, a resilient member and a controlling member. The installation member comprises an installation portion in which an installation hole is defined. The blocking member is engaged in the installation hole. The clamping member is installed on the blocking member and against the shank. The resilient member is sandwiched between the installation portion and the clamping member. The controlling member installed in the installation member. The controlling member is rotatable relative to the installation member to modulate a friction between the shank and the clamping member. 1. A supporting bracket comprising:a stand, the stand comprising a shank;a controlling structure, the controlling structure comprising an installation member, a blocking member, a clamping member, a resilient member and a controlling member, the installation member comprising an installation portion, the installation portion defining an installation hole, the blocking member engaged in the installation hole, the clamping member installed on the blocking member and against the shank, the resilient member sandwiched between the installation member and the clamping member, the controlling member installed in the installation member, and a friction force between the shank and the clamping member being adjustable by rotating the controlling member relative to the installation member.2. The supporting bracket of claim 1 , wherein the blocking member comprises a blocking portion claim 1 , the clamping member comprises a retaining portion and a resisting piece connected to the retaining portion claim 1 , the blocking portion defines a first gap and a second gap claim 1 , the retaining portion is configured to be received in the first gap and abutting the shank through the second gap.3. The supporting ...

Mounting apparauts for side panel of computer

An enclosure comprises a chassis, a side panel and a knob structure. The chassis comprises a rear panel in which a latching hole is defined. The knob structure comprises a mounting member, a sliding member engaged in the mounting member, a positioning member secured to the side panel and a resilient member elastically engaged between the sliding member and the positioning portion. The mounting member is secured to the side panel. The sliding member comprises a hook. The sliding member can slide from a first position to a second position; when the sliding member is in the first position, the hook engages in the latching hole, when the sliding member is in the second position, the hook disengages from the latching hole; the resilient member elastically deforms to bias the sliding member to slide from the first position to the second position.

Computer enclosure

An enclosure comprises a chassis, a front panel installed on the chassis, and a cover. The front panel defines an opening. Two mounting board are located on the front panel. Each of the two mounting board defines a first slots. The cover comprises a base wall and two sidewalls located on opposite sides of the base wall. A first latching portion is located on the sidewall. The first latching portion is slidabaly engaged in the first slot. The cover is slidable relative to the front panel to the base wall covering the opening or uncovering the opening.

ELECTRONIC DEVICE WITH LIGHT BAR

An electronic device includes a frame, a front panel secured to the frame, two light sources secured to the front panel, and a light bar. The frame includes a first sidewall, a second sidewall, and a top wall connected to the first sidewall and the second sidewall. A first supporting portion is located between the first sidewall and the top wall. A second supporting portion is located between the second sidewall and the top wall. The top wall, the first supporting portion, and the second supporting portion cooperatively define an installation hole. A light bar includes a body including a bridge and a light guiding portion located on the bridge. The bridge is located on the supporting portion and the second supporting portion. The light guiding portion is engaged in the installation hole. Two light sources are aligned with two opposite sides of the light guiding portion. 1. An electronic device comprising:a frame comprising a first sidewall, a second sidewall, and a top wall connected to the first sidewall and the second sidewall;a front panel secured to the frame;a light bar comprising a body; andtwo light sources installed on the front panel;wherein a first supporting portion is located between the first sidewall and the top wall; a second supporting portion is located between the second sidewall and the top wall; the top wall, the first supporting portion and the second supporting portion cooperatively defining an installation hole; the body of the light bar comprises a bridge and a light guiding portion located on the bridge, the bridge being located on the first supporting portion and the second supporting portion; the light guiding portion is engaged in the installation hole; each of the light sources being aligned with two sides of the light guiding portion.2. The electronic device of claim 1 , wherein the light bar further comprises a plurality of reflective sheets claim 1 , and each of the plurality of reflective sheets is attached to surfaces of the body.3. ...

Method for Reducing the Handover Frequency by a Communication Device in Femtocell Networks

A method for reducing the handover frequency by a communication device in femtocell networks includes the steps: measuring the radio signal strength by a communication device and storing the information of the serving base station into a cache memory; checking whether the stored information in the cache memory is classified as “femtocell” or not; if so, deleting the macrocell's information from the measurement report by the communication device and transmitting this to the serving base station; when the radio link failure occurred, checking whether the stored information in the cache memory is classified as “femtocell” or not; if so, initiating a timer; detecting an available femtocell before the timer expires; transmitting a call reestablishment request message to the available femtocell for rebuilding the link.

Method for reducing the handover frequency by a femto gateway in femtocell networks

A method for reducing the handover frequency by a femto gateway in femtocell networks includes the steps: receiving a measurement report from a communication device by an initial femtocell; transmitting a relocation required message to a femto gateway by the initial femtocell if the signal strength thereof is below a threshold; ignoring the relocation required message and enabling the timer by the femto gateway after receiving the relocation required message; determining whether the cell ID included in the call reestablishment request message is classified as “femtocell” or not by the femto gateway before the timer expires; if so, rebuilding the link to the femtocell in response to the cell ID by the femto gateway.

SUPPORTING APPARATUS FOR MONITOR

A supporting apparatus includes a base member, a securing assembly secured to the base member, and a supporting assembly secured to the securing assembly. The supporting assembly includes a slid-way module and a bracket. The bracket is secured to the slid-way module and supports a monitor. The slid-way module includes a main body and an adjusting member. The main body includes two guiding ways and a sliding portion. The sliding portion is slidably engaged between the two guiding ways. The adjusting member includes a holding portion located between the sliding portion and the two guiding way, a resilient piece, and a controlling portion rotatably installed on the holding portion. The resilient piece is located between the holding portion and the controlling portion. The controlling portion is rotatable to deform the resilient piece to adjust friction force between the holding portion and the two guiding ways. 1. A supporting apparatus comprising:a base member;a securing assembly slidably secured to the base member; anda supporting assembly secure to the securing assembly, the supporting assembly comprising a slid-way module and a bracket, the bracket being secured to the slid-way module and configured to support a monitor; the slid-way module comprising a main body and an adjusting member, the main body comprising two guiding ways and a sliding portion, and the sliding portion being slidably engaged between the two guiding ways; the adjusting member comprising a holding portion, a resilient piece, and a controlling portion; the holding portion being located between the sliding portion and the two guiding ways, the controlling portion being rotatably installed on the sliding portion, and the resilient piece being located between the holding portion and the controlling portion; the controlling portion is rotatable to deform the resilient piece to adjust friction forces between the holding portion and the two guiding ways.2. The supporting apparatus of claim 1 , wherein ...

ELECTRONIC ASSEMBLY HAVING RETENTION DEVICE FOR DATA STORAGE MODULE

A retention device includes a holder and a fixture. The holder defines a first cavity with a first opening at a front end thereof. The fixture is mounted to the holder through the first opening and comprises a base and a bracket detachably mounted on the base. The base and the bracket cooperatively define a second cavity. A size of the second cavity is smaller than that of the first cavity. 1. A retention device comprising:a holder defining a first cavity with a first opening at a front end thereof; anda fixture mounted to the holder through the first opening and comprising a base and a bracket detachably mounted on the base, wherein the base and the bracket cooperatively define a second cavity, and a size of the second cavity being smaller than that of the first cavity.2. The retention device of claim 1 , wherein the base comprises a bottom plate claim 1 , two side walls extending from two opposite lateral sides of the bottom plate and fixed on the holder claim 1 , and a plurality of latches arranged on the bottom plate of the base.3. The retention device of claim 2 , wherein the bracket comprises two side plates and a top plate interconnecting the side plates claim 2 , a plurality of projection sets protrudes outwardly from an outer surface of the side plates claim 2 , the projection sets engaging with the latches to fix the bracket on the base claim 2 , the second cavity being defined by the bottom plate of the base claim 2 , the top plate claim 2 , and the two side plates of the bracket.4. The retention device of claim 3 , wherein the latches comprise a plurality of catches claim 3 , each catch comprising a restricting portion extending upwardly from the bottom plate and a pressing portion extending horizontally and inwardly from a free end of the restricting portion.5. The retention device of claim 4 , wherein the projection sets each comprises a plurality of first projection portions engagingly received in the catches and abutting a corresponding restricting ...

ELECTRONIC DEVICE HAVING POWER INDICATOR

An electronic device configured with a power indicator is presented. The electronic device includes a bezel, a light emitting diode (LED), a button assembly, and a light bar. The LED adapted to generate lights to indicate power statuses of the electronic device. The button assembly is mounted to the bezel and includes a light-conductive member which directs some of the lights out of a first side of the bezel. The light bar is mounted to the bezel and directs some of the lights out of the second side of the bezel. 1. An electronic device , comprising:a bezel;a light emitting diode (LED) adapted to generate lights to indicate power statuses of the electronic device;a button assembly mounted to the bezel, the button assembly comprising a light-conductive member adapted to direct some of the lights out of a first side of the bezel; anda light bar mounted to the bezel, the light bar being adapted to direct some of the lights out of a second side of the bezel.2. The electronic device of claim 1 , wherein the bezel defines a receiving hole claim 1 , the button assembly comprises a pressing member received in the receiving hole claim 1 , the light-conductive member comprises a securing portion received in the pressing member and a resilient pole extending laterally from the securing portion claim 1 , a free end of the resilient pole is adjacent to the LED.3. The electronic device of claim 2 , wherein the pressing member comprises a top surface flushed with the bezel claim 2 , the top surface defines a light-transmitting slot claim 2 , the light-conductive member comprises a raised portion received in the light-transmitting slot.4. The electronic device of claim 3 , wherein the light-transmitting slot and the raised portion of the light-conductive member are ring-shaped.5. The electronic device of claim 1 , further comprising a securing frame mounted to an interior side of the bezel claim 1 , the light bar is located between the bezel and the securing frame.6. The electronic ...

MOUNTING APPARATUS FOR STORAGE DEVICE

A mounting apparatus includes a receiving case; a mounting tray received in the receiving case, and a securing tray configured for securing a storage device. The mounting tray includes a bottom plate. A clipping assembly and a limiting portion are located on the bottom plate. The securing tray includes a clamping panel and a handle extending from the clamping panel. A blocking tab is located on the handle and engaged with the limiting portion. The clamping panel is attached to the bottom plate and engaged with the clipping assembly, and the handle is deformable for disengaging the blocking tab from the limiting portion. 1. A mounting apparatus for a storage apparatus , the mounting apparatus comprising:a mounting tray comprising a bottom plate, a clipping assembly, and a limiting portion located on the bottom plate; anda securing tray configured for securing the storage device, wherein the securing tray comprises a clamping panel, a handle extending from the clamping panel, and a blocking tab located on the handle and engaged with the limiting portion; the clamping panel is engaged with the clipping assembly, and the handle is deformable for disengaging the blocking tab from the limiting portion.2. The mounting apparatus of claim 1 , wherein the handle comprises a resilient portion extending from the clamping panel claim 1 , and the blocking tab is located on the resilient portion.3. The mounting apparatus of claim 2 , wherein the handle further comprises an operating portion extending from the resilient portion claim 2 , and the operating portion is configured for deforming the resilient portion.4. The mounting apparatus of claim 1 , further comprising a securing member claim 1 , wherein the clamping panel defines a securing hole claim 1 , and the securing member is engaged in the securing hole and a fixing hole of the storage device to secure the storage device to the clamping panel.5. The mounting apparatus of claim 4 , wherein the securing member comprises a ...

Electronic device enclosure

An electronic device enclosure includes a mounting device and a chassis. The mounting device, for securing a connector, includes a limiting protrusion, an installation protrusion, two resilient pieces, and two mounting protrusions extending from the two resilient pieces. The chassis includes a front plate defining an installation opening. The front plate includes two mounting pieces, and each of the two mounting pieces defines a mounting hole. The mounting device is secured between the two mounting pieces. The installation protrusion abuts an inner surface of the front plate through the installation opening. The limiting protrusion abuts an outer surface of the front plate. Each mounting protrusion is engaged in the mounting hole of each mounting piece.

Mounting apparatus for expansion card

A mounting apparatus includes a chassis, a mounting piece and a securing member. The chassis includes a rear plate and a side plate. The rear plate includes a supporting panel, and a positioning slot is defined in the rear plate. The side plate includes a flange. The mounting piece includes an engaging portion. The securing member includes a first securing panel rotatably attached to the supporting panel and a second securing panel. A retaining piece extends from the second securing panel in a first direction, and a positioning piece extends from the second securing panel in a second direction substantially perpendicular to the first direction. The retaining piece is engaged in the positioning slot, the positioning piece is located between the flange and the rear plate, and the flange is secured to the rear plate.

ELECTRONIC DEVICE ENCLOSURE

An electronic device enclosure includes a side plate and a strengthening plate. The side plate includes a main body, a first mounting flange extending from a first edge of the main body, and a second mounting flange extending from a second edge of the main body. The first mounting flange defines a first clipping hole, and the second mounting flange defines a second clipping hole. The strengthening plate includes a first securing flange and a second securing flange. The first securing flange includes a first clamping portion. The second securing flange includes a second clamping portion. The strengthening plate is moveable in a first direction that is substantially perpendicular to the main body, to engage the first clamping in the first clipping hole; and the strengthening plate is rotatable about an axis, to engage the second clamping portion in the second clipping hole. 1. An electronic device enclosure comprising:a side plate comprising a main body, a first mounting flange extending from a first edge of the main body, and a second mounting flange extending from a second edge of the main body; the first mounting flange defines a first clipping hole, and the second mounting flange defines a second clipping hole; anda strengthening plate comprising a first securing flange and a second securing flange; the first securing flange comprises a first clamping portion; and the second securing flange comprises a second clamping portion;wherein the strengthening plate is moveable in a first direction that is substantially perpendicular to the main body, to engage the first clamping in the first clipping hole; and the strengthening plate is rotatable about an axis, to engage the second clamping portion in the second clipping hole.2. The electronic device enclosure of claim 1 , wherein the strengthening plate further comprises a strengthening main body connected to the first securing flange and the second securing flange claim 1 , the strengthening main body comprises a ...

MOUNTING APPARATUS FOR DATA STORAGE DEVICE

A mounting apparatus includes a mounting member and a cage for securing a data storage device. The cage includes a first side plate, an installation piece, and a blocking block extending from the first side plate. The mounting member includes a mounting piece, a positioning piece extending from the mounting piece, and a resisting piece connected to the mounting piece. The first side plate defines a cutout. The mounting piece defines a blocking hole. The positioning piece is engaged in the cutout, and the blocking block is engaged in the blocking hole to prevent the mounting member from moving along a direction substantially parallel to the first side plate. The mounting member is located between the first side plate and the installation piece to prevent the mounting member from moving along a direction substantially perpendicular to the first side plate. The resisting piece abuts against the first side plate. 1. A mounting apparatus for a data storage device , the mounting apparatus comprising:a cage securing the data storage device and comprising a first side plate, an installation piece, and a blocking block extending from the first side plate; anda mounting member comprising a mounting piece, a positioning piece extending from the mounting piece, and a resisting piece connected to the mounting piece;wherein the first side plate defines a cutout; the mounting piece defines a blocking hole; the positioning piece is engaged in the cutout, and the blocking block is engaged in the blocking hole to prevent the mounting member from moving along a first direction substantially parallel to the first side plate; the mounting member is located between the first side plate and the installation piece to prevent the mounting member from moving along a second direction substantially perpendicular to the first side plate; and the resisting piece abuts against the first side plate.2. The mounting apparatus of claim 1 , wherein the blocking block extends away from the installation ...

ENCLOSURE WITH AIRFLOW GUIDING DUCT

An enclosure includes a chassis and an airflow guiding duct. The chassis includes a bottom plate and a rear plate connected to the bottom plate. The bottom plate defines two cutouts providing a pivot point. Two latch pieces with holes are located on the rear plate. The airflow guiding duct pivots on the bottom plate cutouts. Resilient pieces extend from each sidewall of the guiding duct. Each of the two resilient pieces is engaged in the latch holes, to secure the airflow guiding duct to the chassis. Each of the two resilient pieces is deformable to allow quick disengagement from the latch hole, to release the airflow guiding duct. 1. An enclosure , comprising:a chassis comprising a bottom plate and a rear plate connected to the bottom plate; the bottom plate defining two cutouts, two latch pieces being located on the rear plate, and each of the two latch pieces defining a latch hole;an airflow guiding duct pivotably secured to the chassis; the airflow guiding duct comprising two sidewalls, two pivot posts, and two resilient pieces; each of the two pivot posts protrudes from each of the two sidewalls; each of the two resilient pieces extend from each of the two sidewalls; each of the two pivot posts engaged in each of the two cutouts; and each of the two resilient pieces is engaged in the latch hole of each of the two latch pieces, to secure the airflow guiding duct to the chassis; and each of the two resilient pieces is resiliently deformable to disengage from the latch hole of each of the two latch pieces, to release the airflow guiding duct.2. The enclosure of claim 1 , wherein a protrusion is located on each of the two resilient pieces claim 1 , the protrusion of each of the two resilient pieces is engaged in each of the two latch holes claim 1 , and the two resilient pieces are resiliently deformed to disengage the protrusion from the two latch holes of the two latch pieces.3. The enclosure of claim 1 , wherein the two latch pieces are substantially parallel to ...

COMPUTER CASE

A computer case includes a main body and a sidewall assembled to the main body. The main body includes a bottom plate and two side plates extending upwardly from two opposite edges of the bottom plate. Each side plate includes a positioning portion, and a latching part defined on the positioning portion. The side plate adjacent to the latching part also includes a sliding groove. The latching part and the sliding groove are used for securing different kinds of side plates respectively. 1. A computer case , comprising:a main body with a bottom plate and two side plates extending upwardly from two opposite edges of the bottom plate; anda sidewall assembled to the main body;wherein each side plate comprising a positioning portion, and a latching part defined on the positioning portion, the side plate further comprising a sliding groove adjacent to the latching part, the latching part and the sliding groove are for securing different types of sidewalls respectively.2. The computer case of claim 1 , wherein each side plate comprises a first part and a second part extending upwardly to the sidewall from an inner periphery of the first part claim 1 , the positioning portion being formed on the second part.3. The computer case of claim 2 , wherein one side of the first part adjacent to the sliding groove defines a resisting portion extending upwardly towards the sidewall.4. The computer case of claim 3 , wherein the resisting portion has a right-angled triangle shape with a hypotenuse periphery near to the second part.5. The computer case of claim 2 , wherein the latching part comprises a latching plate and a perforation formed on a top edge of the latching plate claim 2 , and the latching plate of one side plate is depressed towards the other side plate.6. The computer case of claim 5 , wherein the sliding groove is located at a top peripheral of the latching plate near to the perforation claim 5 , and communicated to a bottom of the perforation claim 5 , the sliding ...

Counter machine with display

A counter machine includes a display, a first connecting member, a support, and a second connecting member. The first connecting member is secured to the display and includes a first block. The second connecting member is engaged with the first connecting member and includes a second block. The first connecting member is rotatable relative to the second connecting member. When the first block is blocked by the second block, the first connecting member is blocked from rotating relative to the second connecting member.

COMMUNICATION SYSTEM HAVING DATA-DEPENDENT SUPERIMPOSED TRAINING MECHANISIM AND COMMUNICATION METHOD THEREOF

The present invention discloses a communication system with a data-dependent superimposed training mechanism and a communication method thereof. The system uses a precoding module installed in front of the data-dependent superimposed training mechanism to precode data by a precoding matrix. The precoding matrix is a N×N unitary matrix, which is constructed by Q×Q precoding sub-matrix. Q is the block size N divided by the channel length. The precoding matrix can achieve full frequency diversity. Any two sets of data precoded by the precoding matrix must be different from each other, such that the receiver can effectively identify the data transmitted from the transmitter and the computational complexity of the receiver is reduced. 1. A communication system with a data-dependent superimposed training mechanism , comprising: a modulation module, arranged for receiving two-bit data to produce modulation data; and', 'a precoding module, arranged for receiving the modulation data, and precoding the modulation data by a precoding matrix to produce precoding data, and the transmitter adding the precoding data to a data-dependent superimposed training sequence to produce superimposition data, and the superimposition data being added to a cyclic prefix to produce transmission data; and, 'a transmitter, comprisinga receiver, arranged for receiving the transmitted data, and removing the cyclic prefix, and then executing a discrete Fourier transform to perform a channel estimation, and then performing a frequency domain equalization and an inverse discrete Fourier transform before performing a demodulation process, so as to restore the transmitted data;wherein, the precoding matrix is an N×N unitary matrix comprised of a Q×Q precoding sub-matrix, and Q is equal to a block size N divided by a channel length, and the precoding matrix distributes the modulation data uniformly on the frequency domain, and any two sets of data precoded by the precoding matrix must be different from ...

Communication Method of Coordinated Multi-Point Transmission Systems

A communication method of coordinated multi-point transmission systems. Based on the Zadoff-Chu sequences, multiple training sequences are implemented, and the training sequences are a set of robust orthogonal training sequence (ROTS). Preamble signals that use the set of training sequences can be transmitted from multiple base stations/relay stations at the same time. In the case with the mixture signal of multiple preamble signals, user equipment can still use the received signal to estimate multiple carrier frequency offsets of the corresponding base stations/relay stations.

COOPERATIVE MIMO SYSTEM BASED ON PARTIAL ZADOFF-CHU SEQUENCE AND SYNCHRONIZATION METHOD THEREOF

A cooperative multiple-input multiple-output system based on partial Zadoff-Chu sequences and a synchronization method thereof are disclosed, and the system comprises a plurality of transmitters and a receiver. Each transmitter's training signal is disposed in a subband having a length of V, and the training signal is converted into a time domain signal. The receiver receives the time domain signals of the cooperating transmitters. Each transmitter extracts V successive samples from any region of a Zadoff-Chu sequence having a length equal to a multiple of V and the samples are disposed in an exclusive subband as the training signal. When the training signals of cooperating transmitters are converted into time and frequency domain signals, the training signals of all the transmitters are separated from each other to suppress mutual interference in both time and frequency domains and to improve the performance of synchronization. 1. A cooperative multiple-input multiple-output system based on a partial Zadoff-Chu sequence , comprising:a plurality of transmitters located at various locations, exclusive subbands to dispose partial Zadoff-Chu sequences as training signals in the frequency domain, and converting the training signals into time domain signals; anda receiver, arranged for receiving the time domain signals;wherein, each transmitter obtains V successive samples of any region from a Zadoff-Chu sequence having a length equal to a multiple of V and disposes the samples in the exclusive subband and uses the samples as the training signals, such that when the training signal of each transmitter is converted into the time domain signal and the frequency domain signal, the signals are able to be separated from each other to reduce mutual interference at the receiver to enhance the performance of system synchronization.2. The cooperative multiple-input multiple-output system based on a partial Zadoff-Chu sequence as recited in claim 1 , wherein each transmitter uses ...

Communication Method for Estimating Doppler Spread

A communication method for estimating Doppler spread includes the following steps: transmitting a preamble signal to a receiver from a transmitter of a transmission terminal. The preamble signal is received by the receiver; followed by dividing the received samples in the preamble signal into a plurality of sets of samples. The plurality of sets of samples are introduced into a Doppler spread estimation algorithm to estimate Doppler spread.

ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING SYSTEM CAPABLE OF OPTIMIZING CHANNEL ESTIMATION AND METHOD FOR OPTIMIZING CHANNEL ESTIMATION FOR ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING SYSTEM

The present invention discloses a channel estimation method for an orthogonal frequency-division multiplexing system with cyclic-delay diversity. The method makes pilots have the same amplitude and equally partitions the pilots into a number of pilot groups. In addition, the method equally spaces the pilots of each group in a frequency domain and determines the pilot locations and cyclic-delay coefficient of each pilot group in order to optimize the channel estimation of a receiver. The method can perform the channel estimation by using just one OFDM symbol. 2. The orthogonal frequency division multiplexing system of claim 1 , wherein the plurality of the pilots have the same amplitude.3. The orthogonal frequency division multiplexing system of claim 1 , wherein each of the pilot groups corresponds to a specific cyclic-delay coefficient.4. The orthogonal frequency division multiplexing system of claim 1 , wherein the quantity of the transmitting antennas is unequal to the quantity of the OFDM symbols.5. The orthogonal frequency division multiplexing system of claim 1 , wherein the quantity of the transmitting antennas is equal to the quantity of the OFDM symbols.6. The orthogonal frequency division multiplexing system of claim 1 , wherein all the pilot groups have the same cyclic-delay coefficient claim 1 , such that all the pilot groups are able to be arranged in the same OFDM symbol.7. The orthogonal frequency division multiplexing system of claim 1 , wherein all the OFDM symbols transmitted by the same transmitting antenna have the same cyclic-delay.8. The orthogonal frequency division multiplexing system of claim 1 , wherein the pilot groups having different cyclic-delay coefficients are transmitted via different OFDM symbols.10. The method of claim 9 , wherein the plurality of the pilots have the same amplitude.11. The method of claim 9 , wherein each of the pilot groups corresponds to a specific cyclic-delay coefficient.12. The method of claim 9 , wherein the ...

Apparatus for Cooperative MIMO OFDM Using Non-Data-Aided Timing Synchronization

An apparatus for cooperative multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) is provided. The apparatus uses a new carrier assignment scheme (CAS) called generalized interleaved CAS, along with non-data-aided timing synchronization. With the generalized interleaved CAS, random OFDM signals are formed into patterns similar to unequal period synchronization patterns (UPSPs), and a corresponding non-data-aided timing synchronization scheme is set. With the help of majority vote refinement (MVR), the present invention achieves better timing synchronization and enhances the quality of signal demodulation.

Electronic device enclosure

An electronic device apparatus includes an enclosure and a pressing assembly pivotally mounted in the enclosure. A circuit board is mounted in the enclosure. A bottom edge of an expansion card is mounted on the circuit board. The pressing assembly includes a flexible and elastic pressing member. The pressing member includes a pressing portion and a pair of securing feet mounted on opposite edges of the pressing portion. A distance of the pair of securing feet is larger than a with of a top edge of the expansion card. The top edge of the expansion card is located between the pair of securing feet and is pressed by the pressing portion.

ACTIVE SENSING METHOD BASED ON SPECTRAL CORRELATION FOR COGNITIVE RADIO SYSTEMS

A design of cognitive radio (CR) signal structure which based on the spectral correlation can be used for active sensing. In this signal structure, the known pilots used for the primary users (PUs) are duplicated and reallocated in the CR transmission signal properly. With this CR signal structure, the received signal of spectrum sensors will become correlated on the subcarriers when PU reoccupation occurs while the CR transmission is active, and thus PU activities can easily be detected by computing the spectral correlation function. As compare with the traditional cyclostationary feature detection scheme, this method can enhance the active sensing performance while remaining the service quality of the CR system, achieving better detection performance in the same detection time, reducing sensing time (about 1/10 of the traditional sensing time), and still reaching the satisfactory outcome even in the circumstances of low SNR and SINR. 1. An active spectrum sensing method using a cognitive radio signal structure based on spectral correlation , the method at least comprising the following steps:(A) copying the pilot signals of primary users (PUs), and embedding the pilot signals to one or more subcarriers of cognitive radio (CR) systems; the received signal of spectrum sensors will become correlated on the subcarriers when PU transmissions reoccupied the channel while the CR transmission is active,(B) obtaining a spectral correlation of the intensity characteristics for the mixed signal from a spectral correlation function (SCF) of an active detection node of the cognitive radio network system when both of the primary user network system and the cognitive radio network system are to transmit; and(C) detecting the spectral correlation of the intensity characteristics by energy detection (ED) method.2. The method of claim 1 , wherein the PUs is a pilot embedded system claim 1 , and is an orthogonal frequency division multiplexing (OFDM) based system.3. The method of ...

ALL-IN-ONE DEVICE

An all-in-one device includes a rear panel, a mounting member, and handle. The mounting member is secured to the rear panel. The handle includes an actuating pole and two rotating arms located on the actuating pole. The two rotating arms are respectively connected to two opposite ends of the mounting member. The actuating pole abuts the rear panel and is rotatable away from the rear panel. 1. An all-in-one device , comprising:a rear panel;a mounting member secured to the rear panel; anda handle comprising an actuating pole and two rotating arms located on the actuating pole, the two rotating arms being respectively connected to two opposite ends of the mounting member,wherein the actuating pole abuts the rear panel and is rotatable away from the rear panel.2. The all-in-one device of further comprising a resilient member claim 1 , wherein the resilient member is engaged with one of the two rotating arms and located between the mounting member and the one of the two rotating arms claim 1 , and the actuating pole is rotatable towards the rear panel driven by the resilient member.3. The all-in-one device of claim 2 , wherein the mounting member comprises two mounting portions claim 2 , each of the two mounting portions comprises an installation tab and a resisting tab opposite to the installation tab claim 2 , and each of the two rotating arms is engaged between the installation tab and the resisting tab.4. The all-in-one device of claim 3 , wherein a rotating shaft is located on each of the two rotating arms claim 3 , the installation arm defines a pivot hole claim 3 , the resisting tab defines a latching cutout claim 3 , and a first end of the rotating shaft is engaged in the pivot hole claim 3 , and a second end of the rotating shaft is received in the latching cutout.5. The all-in-one device of claim 4 , wherein the installation tab further defines a latching slot in communication with the pivot hole claim 4 , and the resilient member is sleeved on the rotating ...

METHOD OF POWER ALLOCATION AND BASE STATION USING THE SAME

The disclosure proposes a method of power allocation and a base station using the method. The method is applicable to a base station for transmitting information signals to at least two user equipments in a non-orthogonal multiple access (NOMA) system. The method includes: setting a first transmit power of a first user equipment to be smaller than a second transmit power of a second user equipment, where a channel gain of the first user equipment is larger than that of the second user equipment; calculating a first system capacity of the first user equipment according to the first transmit power, and calculating a second system capacity of the second user equipment according to the second transmit power; summing the first system capacity and the second system capacity to obtain a sum capacity; and calculating the first transmit power and the second transmit power based on maximizing the sum capacity. 1. A method of power allocation , applicable to a base station for transmitting information signals to at least two user equipments in a non-orthogonal multiple access (NOMA) system , wherein the at least two user equipments comprise a first user equipment and a second user equipment , and the method comprises:setting a first transmit power of the first user equipment to be smaller than a second transmit power of the second user equipment, wherein a channel gain of the first user equipment is larger than a channel gain of the second user equipment;calculating a first system capacity of the first user equipment according to the first transmit power, and calculating a second system capacity of the second user equipment according to the second transmit power;summing the first system capacity and the second system capacity to obtain a sum capacity; andcalculating the first transmit power and the second transmit power based on maximizing the sum capacity, wherein Karush-Kuhn-Tucker (KKT) conditions are adopted to obtain the first transmit power and the second transmit power ...

MOUNTING APPARATUS FOR BRACKET

Mounting apparatus for bracket can include a computer case, a supporting bracket, and a locating bracket mounted to the computer case. The computer case can include a first limiting slot and two engaging portions. The supporting bracket can include an elastic tab, two cutouts and two second limiting slots. The second limiting slot can include a guiding slot and a receiving slot. The locating bracket can include two resisting portions. The resisting portion can include a first supporting portion and a second supporting portion. The elastic tab can be rotated to slide in the first limiting slot. The two engaging portions can be locked in the cutouts. The second supporting portion can slide in the guiding slot from the receiving slot. The first supporting portion can be received in the receiving slot and can resist against the connecting plate. 1. A mounting apparatus for bracket , comprising:a computer case comprising two pivoting slots and a first limiting slot with two engaging portions being located in the first limiting slot;a supporting bracket mounted to the computer case with an elastic tab and two pivoting plates being located on the supporting bracket;two cutouts being defined in the elastic tab;two second limiting slots being defined in the supporting bracket, wherein each of the two second limiting slots comprises a guiding slot and a receiving slot;a locating bracket mounted to the computer case; andtwo resisting portions located on the locating bracket, wherein each of the two resisting portions comprises a first supporting portion and a second supporting portion, the two pivoting plates of the supporting bracket are inserted in the two pivoting slots in the computer case, the elastic tab rotates around the two pivoting plates and the two pivoting slots, the elastic tab slides in the first limiting slot, the elastic tab is elastically deformed, the two engaging portions are locked in the corresponding cutouts, the second supporting portion slides in the ...

Device and Method of Handling Signal Interference

A transmitting device, for handling signal interference, comprises a first transmitting circuit, for processing a first plurality of baseband signals, to generate a first plurality of radio frequency signals; a second transmitting circuit, for processing a second plurality of baseband signals and a plurality of input signals, to generate a second plurality of radio frequency signals; a feedback circuit, coupled to the second transmitting circuit, for processing the second plurality of radio frequency signals and a plurality of leakage signals, to generate a plurality of error signals; and a control circuit, coupled to the first transmitting circuit, the second transmitting circuit and the feedback circuit, for generating the plurality of input signals according to the first plurality of baseband signals and the plurality of error signals. 1. A transmitting device , for handling signal interference , comprising:a first transmitting circuit, for processing a first plurality of baseband signals, to generate a first plurality of radio frequency signals;a second transmitting circuit, for processing a second plurality of baseband signals and a plurality of input signals, to generate a second plurality of radio frequency signals, wherein a first frequency of the first plurality of radio frequency signals and a second frequency of the second plurality of radio frequency signals are different;a feedback circuit, coupled to the second transmitting circuit, for processing the second plurality of radio frequency signals and a plurality of leakage signals, to generate a plurality of error signals, wherein the plurality of leakage signals are related to the first plurality of radio frequency signals; anda control circuit, coupled to the first transmitting circuit, the second transmitting circuit and the feedback circuit, for generating the plurality of input signals according to the first plurality of baseband signals and the plurality of error signals.2. The transmitting device ...

Electronic device enclosure

An electronic device enclosure includes a chassis, a bracket, a shaft and a supporting member. The bracket is rotatably connected to the chassis through the shaft. The supporting member is sheathed with the shaft. Two opposite ends of the supporting member are respectively fixed to the chassis and the bracket. When the bracket rotates in a first direction relative to the chassis, the supporting member is elastically deformable to support the bracket preventing the bracket from rotating towards a second direction relative to the chassis. And the first direction is opposite to the second direction.

METHOD AND POLAR CODE DECODER FOR DETERMINING TO-BE-FLIPPED BIT POSITION

The disclosure provides a method and a polar code decoder for determining a to-be-flipped bit position when performing a successive cancellation list flip operation. The method includes: obtaining a polar code decoding tree generated by performing a successive cancellation list (SCL) operation on a polar code segment, and the polar code segment includes multiple bit positions, and each bit position in the polar code decoding tree includes multiple surviving paths and multiple pruned paths; in a post-processing stage for the SCL operation, estimating a correct path probability of each of the surviving paths and the pruned paths of the i-th bit position and accordingly estimating a reliability for the i-th bit position; selecting a specific bit position among the bit positions based on the reliability of each bit position; and performing an SCL flip operation on the polar code decoding tree based on the specific bit position. 1. A method for determining a to-be-flipped bit position when performing a successive cancellation list (SCL) flip operation , comprising:obtaining a polar code decoding tree, wherein the polar code decoding tree is generated by performing an SCL operation on a polar code segment, wherein the polar code segment comprises a plurality of bit positions, and each of the bit positions comprises a plurality of surviving paths and a plurality of pruned paths in the polar code decoding tree;in a post-processing stage of the SCL operation, for an i-th bit position among the bit positions, estimating a correct path probability of each of the surviving paths and the pruned paths of the i-th bit position and accordingly estimating a reliability of the i-th bit position;selecting a first specific bit position among the bit positions as a to-be-flipped bit position based on the reliability of each of the bit positions; andperforming an SCL flip operation on the polar code decoding tree based on the first specific bit position.2. The method according to claim 1 ...

ELECTRONIC DEVICE ENCLOSURE

An electronic device enclosure includes a panel, a basic frame, a first frame, a second frame, and a sleeve. Both the first frame and the second frame are located between the panel and the basic frame. An inner space is defined by the panel, the basic frame, the first frame, and the second frame. A first inlet is surrounded by the panel, the first frame, and the basic frame and a second inlet is surrounded by the panel, the second frame, and the basic frame. Both the first inlet and second inlet communicate with the inner space. The sleeve covers outside the first frame and the second frame to shield the first inlet and the second inlet. 1. An electronic device enclosure comprising:a panel and a basic frame;a first frame and a second frame located between the panel and the basic frame, and an inner space defined by the panel, the basic frame, the first frame, and the second frame;a first inlet surrounded by the panel, the first frame, and the basic frame;a second inlet surrounded by the panel, the second frame, and the basic frame; anda sleeve covering the first frame and the second frame, thereby the first inlet and the second inlet shielded by the sleeve,wherein both the first inlet and second inlet communicate with the inner space.2. The electronic device enclosure of claim 1 , wherein the first frame comprises two parallel first arms claim 1 , each first arm abuts the panel and the basic frame for allowing the first inlet to be defined by the two first arms; the second frame comprises two parallel second arms claim 1 , each second arm abuts the panel and the basic frame for allowing the second inlet to be defined by the two second arms.3. The electronic device enclosure of claim 2 , wherein the first inlet is positioned on a first plane claim 2 , and the second inlet is positioned on a parallel second plane; the first inlet and second inlet are at opposite sides of the electronic device enclosure.4. The electronic device enclosure of claim 3 , wherein one of the ...

ELECTRONIC DEVICE ENCLOSURE

Electronic device enclosure includes a front frame and a front panel. The front frame includes a front frame body. A front flange extends from the front frame body to define a front panel sliding slot, and the front panel is made of a non-metal material and is slidably received in the front panel sliding slot, thereby the front panel is coupled to the front frame. 1. An electronic device enclosure comprising:a front frame comprising: a front frame body and a front flange extending from the front frame body to define a front panel sliding slot; anda front panel made of non-metal material and is slidably received in the front panel sliding slot, thereby the front panel is coupled to the front frame.2. The electronic device enclosure of claim 1 , further comprising a top panel and a bottom panel; wherein a pair of limiting ribs extends from each of opposite edges of the front frame body to define a receiving slot claim 1 , an edge of the top panel is engaged in the receiving slot of a top portion of the front frame body claim 1 , and an edge of the bottom panel is engaged in the receiving slot of a bottom portion of the front frame body.3. The electronic device enclosure of claim 1 , further comprising a top panel claim 1 , a bottom panel claim 1 , a side frame and a side panel claim 1 , wherein the side frame comprises a side frame body claim 1 , a side flange extends from the side frame body to define a side panel sliding slot claim 1 , and the side panel is made of nonmetal material and is slidable received in the side panel sliding slot claim 1 , thereby the side panel is coupled to the side frame.4. The electronic device enclosure of claim 3 , wherein a pair of limiting pieces extends from each of opposite edges of the side frame body to define an accommodating slot claim 3 , an edge of the top panel is engaged in the accommodating slot of a top portion of the side frame body claim 3 , and an edge of the bottom panel is engaged in the accommodating slot of a ...

HOUSING LOCKING APPARATUS

A housing locking apparatus includes a shell, a cover, a fixing member, a blocking member and an operation member. The shell includes an abutting portion protruding inside of the shell and a restriction member protruding outside of the shell. The cover includes a covering plate and a sidewall protruding from the covering plate. The sidewall defines a restriction hole and abuts against the outside of the shell. The restriction member is movably received in the restriction hole. The fixing member is attached to the covering plate. The blocking member and the operation member are both rotationally attached to the fixing member. An end of the blocking member abuts against the abutting portion. The operation member rotates around the fixing member at a first direction to press the blocking member to rotate to position the end of the blocking member between the covering plate and the abutting portion. 1. A housing locking apparatus comprising:a shell defining an opening and comprising an abutting portion protruding from inside of the shell;a cover comprising a covering plate spaced from the abutting portion and a sidewall protruding from an edge of the covering plate, the covering plate received in the opening to shield the opening and the sidewall abutting against outside of the shell;a fixing member attached to the covering plate;a blocking member rotationally attached to the fixing member, an end of the blocking member facing the sidewall and abutting against the abutting portion; andan operation member rotationally attached to the fixing member, the operation member configured to rotate around the fixing member at a first direction to press the blocking member to rotate to position the end of the blocking member between the covering plate and the abutting portion.2. The housing locking apparatus as claimed in claim 1 , wherein the covering plate defines a plurality of first through holes claim 1 , the fixing member comprises a pedestal and a plurality of clasping ...

TOOL-LESS MOUNTING APPARATUS FOR HARD DISK DRIVE AND STORAGE DEVICE USING THE SAME

A hand-mountable mounting apparatus for hard disk drives (HDD) and storage devices using HDD includes a tray defining an installation space for the hard disk drive and a locking unit. The tray includes a hook. A bracket of the locking unit includes defines a first locking slot corresponding to the hook and a sliding plate defining a second locking slot corresponding to the hook and the first locking slot. The sliding plate is slidable between an unlock position, where the hook is free to withdraw, and a lock position, where the first locking slot and the second locking slot are not aligned and the hook is latched by the sliding plate. 1. A tool-less mounting apparatus for hard disk drive comprising:a tray defining an installation space for the hard disk drive and comprising a hook; and a supporting bracket defining a first locking slot corresponding to the hook; and', 'a sliding plate slidably connected to a side of the supporting bracket and defining a second locking slot corresponding to the hook and the first locking slot;, 'a locking unit comprisingwherein the hook is coupled to the sliding plate by passing through the first locking slot and the second locking slot; the sliding plate is slidable between an unlocking position, where the first locking slot aligns with the second locking slot and the hook is free to pass through the first locking slot and the second locking slot, and a locking position, where the first locking slot and the second locking slot are not aligned and the hook is stopped by the sliding plate.2. The mounting apparatus of claim 1 , wherein the mounting apparatus further comprises a resilient member connected between the sliding plate and the supporting bracket;when the sliding plate is forced to slide to the unlocking position, the resilient member is elastically deformed; when the sliding plate is unforced, the resilient member drives the sliding plate to slide to the locking position under restoring force.3. The mounting apparatus of ...

ELECTRONIC DEVICE ENCLOSURE

Electronic device enclosure includes a base, a cover, and a top frame. The base comprises a bottom plate, a rear plate with a first edge coupled to an edge of the bottom plate, and two opposing side plates with a first edge of each side plate coupled to an edge of the bottom plate and a second edge of each side plate coupled to the rear plate. The top frame is positioned along a second edge of the rear plate and each side plate, the second rear plate edge being opposite the first rear plate edge, and each second side plate edge being opposite the first edge of the side plate. The base and the cover plate cooperate to form a receiving space for enclosing a plurality of electronic components, and the bottom plate, the rear plate and each side plate are each primarily composed of non-metallic material. 1. An electronic device enclosure comprising: a bottom plate;', 'a rear plate with a first edge coupled to an edge of the bottom plate and positioned substantially perpendicular to the bottom plate; and', 'two opposing side plates, with a first edge of each side plate coupled to an edge of the bottom plate and positioned substantially perpendicular to the bottom plate and a second edge of each side plate coupled to the rear plate and positioned substantially perpendicular to the rear plate;', 'a cover coupled to the base; and', 'a top frame for strengthening the base and positioned along a second edge of the rear plate and each side plate, the second rear plate edge being substantially parallel to and opposite the first rear plate edge, and each second side plate edge being substantially parallel to and opposite the first edge of the side plate;', 'wherein the rear plate defines two cutouts; the top frame comprises three top poles, one of the three top poles comprises two extending pieces engaged in the two cutouts;', 'wherein, the base and the cover cooperate to form a receiving space for substantially enclosing a plurality of electronic components positioned within the ...

USER SELECTION METHOD FOR NON-ORTHOGONAL MULTIPLE ACCESS SYSTEM AND BASE STATION THEREOF

The disclosure provides a user selection method for non-orthogonal multiple access (NOMA) systems and a base station thereof. The method includes: (1) initializing the cluster-partition parameter i to be 2; (2) dividing N user devices into i clusters; (3) selecting a reference device from each of the i clusters to form a reference cluster; (4) performing a power allocation algorithm for the reference cluster to calculate a power allocation factor for each of the reference devices; (5) determining whether each of the reference devices with the calculated power allocation factors meets a set of constraints: if all of the reference devices meet the set of constraints, increasing the value of i by 1 and then going back to step (2); if any one of the reference devices does not meet the set of constraints and i is not equal to 2, performing NOMA transmission for the reference cluster. 1. A user selection method for a non-orthogonal multiple access (NOMA) system serving N user devices , comprising:(a) dividing the N user devices into i clusters, wherein i and N are positive integers, and i ranges between 2 and N;(b) selecting a reference device from each of the i clusters to form a reference cluster;(c) performing a power allocation algorithm for the reference cluster to determine a reference power allocation factor for each of the reference devices, and accordingly checking whether each of the reference devices meets at least one constraint; and(d) if not every reference device in the reference cluster meets the at least one constraint, performing NOMA transmission for a candidate cluster, wherein the candidate cluster is formed by a candidate device in each of i−1 clusters when the N user devices are divided into the i−1 clusters, and the candidate device in each of the i−1 clusters meets the at least one constraint.2. The method of claim 1 , wherein the step of dividing the N user devices into the i clusters comprises:sorting the N user devices according to a channel ...

MOUNTING PLATE AND SECURITY DEVICE USING THE SAME

A mounting plate and a security device using the same are provided. The mounting plate is for being fixed to a surface, wherein a mounting device is hanged up on the mounting plate, and the mounting plate comprises a first conductive sheet and a second conductive sheet electrically connected to a first electrode of an exterior power and a second electrode of the exterior power respectively. When the mounting device is hanged up on the mounting plate, the exterior power is electrically connected to the mounting device through the first conductive sheet and the second conductive sheet. 1. A mounting plate , for being fixed to a surface , comprising:a first conductive sheet and a second conductive sheet electrically connected to a first electrode and a second electrode of an exterior power respectively;wherein when a mounting device is hanged up on the mounting plate, the exterior power is electrically connected to the mounting device through the first conductive sheet and the second conductive sheet.2. The mounting plate according to claim 1 , further comprising:a protrusion projected from a front surface of the mounting plate and having a stop portion upwardly extended;wherein when the mounting device is hanged up on the protrusion of the mounting plate, the movement of the mounting device is restricted by the stop portion.3. The mounting plate according to claim 1 , further comprising:a hook pair engaged with two opposite sides of the first conductive sheet.4. The mounting plate according to claim 1 , wherein the first conductive sheet has a through hole claim 1 , and the mounting plate further comprises: a pillar body passing through the through hole of the first conductive sheet; and', 'a pressing head connecting to the pillar body of the first conductive sheet and pressing against the first conductive sheet., 'a fixing pillar comprising5. The mounting plate according to claim 1 , wherein each of the first conductive sheet and the second conductive sheet comprises ...

CHASSIS

A chassis includes a shell, two sliding rails, a slider and a bracket. The two sliding rails are fixed to the shell. The slider is slidably fixed to one of the two sliding rails. The slider includes a positioning post. The bracket defines a groove. The positioning post is located in the groove and moves from a first position to a second position along the groove. When the positioning post is located at the first position, the bracket is locked with the shell. When the positioning post is located at the second position, the bracket is unlocked from the shell and can move away relative to the shell. 1. A chassis comprising:a shell;two sliding rails secured to the shell;a slider slidably secured to one of the two sliding rails, and the slider comprising a positioning post; anda bracket defining a groove;wherein the positioning post is configured to move from a first position to a second position along the groove; when the positioning post is located at the first position, the bracket is engaged with the shell; and when the positioning post is located at the second position, the bracket is unlocked with the shell and is configured to move away from the shell.2. The chassis of claim 1 , wherein when the positioning post moving from the first position to the second position claim 1 , the positioning post moves along a first direction claim 1 , the bracket moves along a second direction relative to the shell claim 1 , and the first direction is substantially perpendicular to the second direction.3. The chassis of claim 2 , wherein the shell comprises a bottom plate claim 2 , and the second direction is parallel to the bottom plate.4. The chassis of claim 1 , wherein the groove defines a slot and a positioning groove claim 1 , the slot communicates with the positioning groove claim 1 , and an extending direction of the slot is substantially perpendicular to an extending direction of the positioning groove.5. The chassis of claim 4 , wherein the bracket comprises cover claim ...

SIDE PLATE MOUNTING APPARATUS AND CASE USING THE SAME

A mounting apparatus for a side plate to enable the side plate to be mounted to a case includes a sliding member, an elastic member, and at least one hook defined on the side plate. The sliding member is slidably mounted to an inner surface of the side plate. An end of the sliding member is connected to a side of the side plate by the elastic member, each of the sliding member and the side plate defines a latching slot corresponding to the hook. The sliding member is slidable on the side plate to lock or release the hook. A case using the mounting apparatus and the side plate is further disclosed. 1. A mounting apparatus for a side plate , the mounting apparatus comprising:a sliding member slidably mounted to an inner surface of the side plate;an elastic member; andat least one hook defined on the side plate;wherein an end of the sliding member is connected to a side of the side plate by the elastic member, each of the sliding member and each of the side plate define a latching slot corresponding to the hook, the sliding member is slidable on the side plate to lock or release the hook.2. The mounting apparatus of claim 1 , wherein the elastic member is a hook spring claim 1 , the hook spring is parallel with a sliding direction of the sliding member claim 1 , when the hook passes through the latching slot claim 1 , the elastic member drives the sliding member to lock the hook by pretension force.3. The mounting apparatus of claim 1 , wherein the mounting apparatus further comprises a clamp claim 1 , the clamp is mounted to the chassis claim 1 , an end of the clamp defines a locking hole claim 1 , the sliding member further comprises a location post coupling with the locking hole; when the sliding member slide to a released position claim 1 , where the sliding member releases the hook claim 1 , the location post maintains in the locking hole to hold the sliding member.4. The mounting apparatus of claim 3 , wherein the clamp is made of elastic material claim 3 , ...

ELECTRONIC DEVICE ENCLOSURE

Electronic device enclosure includes a main body and a cover. The main body includes a first sidewall and a second sidewall opposite to the first sidewall. The cover is rotatably coupled to the first sidewall and includes a cover main body. The cover is foldable relative to the first sidewall to secure to the second sidewall. The cover main body is made of non-metallic material, and a top moisture proof member is attached to a top surface of the cover main body to protect the cover main body from moisture. 1. An electronic device enclosure comprising:a main body comprising a first sidewall and a second sidewall opposite to the first sidewall; anda cover rotatably coupled to the first sidewall and comprising a cover main body;wherein the cover is foldable relative to the first sidewall to secure to the second sidewall, the cover main body is made of non-metallic material, and a top moisture proof member is attached to a top surface of the cover main body to protect the cover main body from moisture.2. The electronic device enclosure of claim 1 , wherein the cover comprises a shielding portion rotatably coupled to the first sidewall and a securing portion coupled to the shielding portion claim 1 , and the shielding portion is rotatable relative to the first sidewall for allowing the securing portion to secure to the second sidewall.3. The electronic device enclosure of claim 2 , wherein the securing portion is rotatably coupled to the shielding portion claim 2 , and the securing portion is attached to an inner surface of the second sidewall when the securing portion is secured to the second sidewall.4. The electronic device enclosure of claim 1 , wherein the top moisture proof member is an epidermal paper.5. The electronic device enclosure of claim 4 , wherein the epidermal paper is a laminating paper.6. The electronic device enclosure of claim 1 , wherein a bottom moisture proof member is attached to a bottom surface of the cover main body to protect the cover main ...

ELECTRONIC DEVICE BEZEL

An electronic device bezel includes a front panel, a light source, a light transmitting member, and a light guiding member mounted in the light transmitting member. The light source is mounted on an inner side of the front panel. The light transmitting member mounted on an outer side of the front panel. An end of the light guiding member extends through the front panel and is aligned with the light source to guide a plurality of light beams emitted from the light source to the light transmitting member. 1. An electronic device bezel comprising:a front panel;a light source mounted on an inner side of the front panel;a light transmitting member mounted on an outer side of the front panel; anda light guiding member mounted in the light transmitting member;wherein an end of the light guiding member extends through the front panel and is aligned with the light source, a plurality of light beams emitted from the light source is guided to the light transmitting member via the end of the light guiding member and shines out from the light transmitting member.2. The electronic device bezel of claim 1 , wherein a receiving space is defined in the outer side of the front panel claim 1 , and the receiving space comprises a bottom plate parallel to the inner side of the panel.3. The electronic device bezel of claim 2 , further comprising a light shading member configured to keep the plurality of light beams out of the inner side of the front panel claim 2 , wherein the light shading member is received in the receiving space and located between the light guiding member and the bottom plate.4. The electronic device bezel of claim 3 , wherein the light shading member is mounted on the bottom plate.5. The electronic device bezel of claim 3 , wherein the light transmitting member comprises an inner surface claim 3 , and the light guiding member is received in a mounting slot defined in the inner surface.6. The electronic device bezel of claim 5 , wherein the light shading member is ...

DISPLAYER BASE WITH DISPLAYER ELEVATING DEVICE

A base device which can raise or lower a display panel suspended therein includes a fixing frame, a hanger for fixing the panel, two sliding rods, a connecting seat, a driving device, and a screw rod. The fixing frame includes two fixing rods spaced apart from each other and a base connected between the two fixing rods. The two sliding rods are connected to the hanger and slidably fixed to the two fixing rods. The connecting seat is fixed between the two sliding rods. The screw rod is fixed on the base. The driving device is fixed on the connecting seat and slidably connected to the screw rod. When the driving device is moved, manually or by motor, up and down along the screw rod the hanger carrying the panel is lifted up or lowered. 1. A displayer elevating device comprising:a fixing frame comprising two fixing rods spaced apart from each other and a base connected to the two fixing rods;a hanger for fixing a displayer;two sliding rods connected to the hanger and slidably fixed to the two fixing rods;a connecting seat fixed between the two sliding rods;a screw rod fixed on the base; anda driving device fixed on the connecting seat and slidably connected to the screw rod, when the driving device moves along the screw rod to drive the sliding rod to slide along the fixing rod.2. The displayer elevating device as claimed in claim 1 , wherein the driving device is a lifting hand wheel claim 1 , the lifting hand wheel comprises a rotating wheel claim 1 , a worm fixed to the rotating wheel and a first worm gear meshing with the worm; the first worm gear is sleeved on the screw rod and screwed with the screw rod.3. The displayer elevating device as claimed in claim 1 , wherein base comprises at least three universal casters.4. The displayer elevating device as claimed in claim 1 , wherein each fixing rod defines a sliding slot claim 1 , two sliding slots of the two fixing rods faces each other claim 1 , the two sliding rods are slidably disposed in the two sliding slots.5 ...

MULTICARRIER COMMUNICATION SYSTEM AND CHANNEL ESTIMATION METHOD THEREOF

This invention discloses a multicarrier communication system that includes a transmitter equipment and a receiver equipment. According to a timing scheme, the transmitter equipment processes multiple original symbols for transmission on multiple subcarrier channels, and the receiver equipment processes and detects multiple received symbols from the multiple subcarrier channels. During a time frame of data transmission, the initial three of the original symbols for each of the subcarrier channels are three pilot symbols, forming a preamble. The three preambles of every consecutive three of the subcarrier channels form a preamble unit. All the pilot symbols of the preamble unit are expressed as a 3×3 matrix. When the center pilot symbol of the preamble unit is normalized to 1 or j (i.e., the imaginary unit), the matrix is 2. The multicarrier communication system according to claim 1 , wherein the base matrix is directly used as the preamble unit or is used as the preamble unit after multiplied by a non-zero constant.3. The multicarrier communication system according to claim 1 , wherein the corresponding multicarrier transmission and modulation schemes include filter bank multicarrier (FBMC) transmission with offset quadrature amplitude modulation (OQAM).4. The multicarrier communication system according to claim 1 , wherein the frequency band of each subcarrier channel is different from those of the other subcarrier channels.5. The multicarrier communication system according to claim 1 , wherein the receiver equipment estimates the channel response of each center subcarrier corresponding to the center pilot symbol of each preamble unit in a way that the mean-squared error of channel estimation is minimized.6. The multicarrier communication system according to claim 5 , wherein claim 5 , for each center subcarrier corresponding to the center pilot symbol of each preamble unit claim 5 , the channel responses of the front and back subcarriers are calculated by ...

ELECTRONIC DEVICE

An electronic device includes a chassis, a circuit board received in the chassis, and a cover coupled to the chassis. The chassis defines an opening and includes a first sidewall and a second sidewall. The cover includes a base plate, a first side plate, and a second side plate. The base plate is configured to cover the opening. The first side plate extends from the base plate and covers the first sidewall. The second side plate is mounted to the second sidewall. The first sidewall and the second sidewall are located at two opposite sides of the opening. The first side plate and the second side plate are located at two opposite sides of the base plate. The first side plate and the base plate are rotatable relative to the second side plate to enable access to the opening. 1. An electronic device comprising:a chassis defining an opening and comprising a first sidewall and a second sidewall;a circuit board configured to be inserted through the opening and received in the chassis; and a base plate configured to cover the opening;', 'a first side plate extending from the base plate and covering the first sidewall; and', 'a second side plate mounted to the second sidewall;, 'a cover coupled to the chassis comprisingwherein the first sidewall and the second sidewall are located at two opposite sides of the opening, the first side plate and the second side plate are located at two opposite sides of the base plate, and the first side plate and the base plate are rotatable relative to the second side plate to enable access to the opening.2. The electronic device of claim 1 , wherein the chassis body is made of metal claim 1 , and the cover is made of paper.3. The electronic device of claim 2 , wherein the cover further comprises a shielding layer fixed to the base plate to prevent electromagnetic interference generated from electronic components of the circuit board from egression from the chassis via the opening.4. The electronic device of claim 2 , wherein the first side ...

JOINT USER CLUSTERING AND POWER ALLOCATION METHOD AND BASE STATION USING THE SAME

This invention provides a joint user clustering and power allocation method and a base station using the same. They are applicable to cooperative non-orthogonal multiple access (NOMA) systems. The method includes: sorting K user equipment devices (UEs) according to the K channel gains between the base station and the K UEs, and then establishing a strong user candidate group of K/2 UEs and a weak user candidate group of K/2 UEs; pairing each of the UEs in the strong user candidate group with each of the UEs in the weak user candidate group so as to divide the K UEs into K/2 clusters, where the power allocation coefficients for each pair of UEs are also calculated during the paring process; and transmitting messages to the K UEs based on the calculated power allocation coefficients of the K/2 clusters. 1. A joint user clustering and power allocation method applicable to a base station for transmitting messages to K user equipment devices (UEs) being divided into N clusters in cooperative non-orthogonal multiple access (NOMA) systems , wherein K is an even number greater than or equal to 2 and N=K/2 , and the method comprises:sorting the K UEs in descending order according to K channel gains between the base station and the K UEs;setting N leading UEs among the sorted UEs as a strong user candidate group, and setting N remaining UEs among the sorted UEs as a weak user candidate group;pairing each UE in the strong user candidate group with each UE in the weak user candidate group and simultaneously calculating power allocation coefficients and transmission powers corresponding to two UEs in each of pairing combinations so as to divide the K UEs into the N clusters; andtransmitting the messages to the K UEs according to the transmission powers corresponding to the UEs in the N clusters.2. The joint user clustering and power allocation method according to claim 1 , wherein the method for pairing each UE in the strong user candidate group with each UE in the weak user ...

BRACKET MECHANISM FOR DATA STORAGE DEVICES

A bracket mechanism includes a tray, and a blocking member. The tray defines a receiving space configured to receive a first data storage device. The tray includes a first sidewall. The first sidewall defines an installation hole, and a latching member located in the first storage device is engaged in the installation hole. The blocking member is engaged with the first tray and includes a limiting piece, and the limiting piece is received in the installation hole and resists the latching member to prevent the latching member from moving in the installation hole relative to the first sidewall. 1. A bracket mechanism comprising:a tray defining a receiving space configured to receive a first data storage device, the tray comprising a first sidewall, the first sidewall defining an installation hole, and a latching member secured to the first storage device engaged in the installation hole; anda blocking member engaged with the tray and comprising a limiting piece, and the limiting piece received in the installation hole and abutting the latching member to prevent the latching member from moving in the installation hole relative to the first sidewall.2. The bracket mechanism of claim 1 , wherein the installation hole comprises a narrow portion claim 1 , the latching member engaged in the narrow portion.3. The bracket mechanism of claim 2 , wherein the installation hole further comprises a wide portion in communication with the narrow portion claim 2 , and the limiting piece is received in the wide portion and is movable along the blocking member to disengage from the lathing portion.4. The bracket mechanism of claim 3 , wherein the installation hole further comprises a receiving portion in communication with the wide portion claim 3 , and the limiting piece is received in the receiving portion after disengaging from the wide portion.5. The bracket mechanism of claim 4 , wherein the first sidewall further defines an exit in communication with the wide portion claim 4 , ...

HOLDING ASSEMBLY

An enclosure assembly includes a base, and a bracket. The base includes two side plates parallel to each other and two installation boards. Each of the two installation boards is attached to each of the two side plates and defining a pivot hole and a rotating slot. The bracket is configured to receive a plurality of data storage devices and includes a pivot post and a rotating post corresponding to each installation board. The pivot post is pivotably engaged in the pivot hole. The rotating post is engaged in the rotating slot and is rotatable about the pivot post relative to the base along the rotating slot, so that there is different angle defined between the bracket and the base. 1. A holding assembly comprising:a base comprising two side plates parallel to each other and two installation boards, each of the two installation boards being attached to each of the two side plates and defining a pivot hole and a rotating slot; anda bracket configured to receive a plurality of data storage devices and comprising a pivot post and a rotating post corresponding to each installation board;wherein the pivot post is pivotably engaged in the pivot hole, the rotating post is engaged in the rotating slot and is rotatable about the pivot post relative to the base along the rotating slot to adjust angle defined between the bracket and the base.2. The holding assembly of claim 1 , wherein a plurality of ribs is located on one sidewall of the rotating slot claim 1 , and the rotating post is engaged between two adjacent ribs of the plurality of ribs to prevent the bracket from rotating relative to the base.3. The holding assembly of claim 1 , wherein the rotating slot is substantially arc-shaped.4. The holding assembly of claim 1 , wherein the base further comprises a bottom plate claim 1 , each installation board defines a limiting slot claim 1 , the bracket further comprises a limiting post claim 1 , the limiting post is engaged in a bottom portion of the limiting slot claim 1 , ...

AIR DUCT, COOLING MODULE, AND ELECTRONIC DEVICE

An air duct includes a base and a latching portion extending from the base. The base includes a resilient portion and two blocking plates. The latching portion is configured to receive a fan. The resilient portion is elastic deformable to fasten the base to the fan. The latching portion defines a ventilation hole for air flowing through in a first direction. The two blocking plates are configured to prevent the air from flowing back to the ventilation hole in a second direction opposite to the first direction. A cooling module with the air duct and an electronic device with the air duct are further disclosed. 1. An air duct comprising:base comprising a resilient portion and two blocking plates; anda latching portion extending from the base and configured to receive a fan and defining a ventilation hole for air flowing through in a first direction;wherein the resilient portion is elastic deformable to fasten the base to the fan, and the two blocking plates are configured to prevent the air from flowing back to the ventilation hole in a second direction opposite to the first direction.2. The air duct of claim 1 , wherein the base further comprises a first connecting plate connected between the two blocking plates and two mounting tabs extending from the first connecting plate claim 1 , and the two mounting tabs are configured to secure the fan.3. The air duct of claim 2 , wherein the base further comprises a second connecting plate connected between the two blocking plates claim 2 , the first connecting plate is substantially parallel to the second connecting plate claim 2 , and the resilient portion extends from the second connecting plate.4. The air duct of claim 3 , wherein the first connecting plate claim 3 , the second connecting plate claim 3 , and the two blocking plates cooperatively define the ventilation hole.5. The air duct of claim 1 , wherein the latching portion comprises a top plate and two limiting plates extending from opposite edges of the top plate ...

FILTER BANK MULTICARRIER COMMUNICATION SYSTEM BASED ON DISCRETE HARTLEY TRANSFORM

A filter bank multicarrier communication system is proposed. The system adopts the real-valued discrete Hartley transform for both multicarrier modulation and demodulation, rather than the complex-valued inverse discrete Fourier transform for multicarrier modulation and the discrete Fourier transform for multicarrier demodulation in conventional filter bank multicarrier schemes, so as to reduce implementation complexity and to enhance system performance. 1. A transmitter of a filter bank multicarrier communication system based on a discrete Hartley transform (DHT) , said transmitter comprising:a serial-to-parallel conversion unit configured to perform serial-to-parallel conversion on M complex input data symbols, which are inputted thereto in series and each of which includes a real part and an imaginary part, and to output M real parts and M imaginary parts of the complex input data symbols in parallel, where M is a positive even integer;a first pre-processing unit coupled to the serial-to-parallel conversion unit for receiving the M real parts of the complex input data symbols, and configured to generate M pre-processed real-part components based on a pre-processing model and the M real parts of the complex input data symbols;a second pre-processing unit coupled to the serial-to-parallel conversion unit for receiving the M imaginary parts of the complex input data symbols, and configured to generate M pre-processed imaginary-part components based on the pre-processing model and the M imaginary parts of the complex input data symbols;a first data separator coupled to the first pre-processing unit for receiving the M pre-processed real-part components, and configured to separate the M pre-processed real-part components into M/2 even-numbered pre-processed real-part components and M/2 odd-numbered pre-processed real-part components;a second data separator coupled to the second pre-processing unit for receiving the M pre-processed imaginary-part components, and ...

ELECTRONIC DEVICE IN LIGHTWEIGHT HOUSING

An electronic device includes a non-metallic main body, a front panel, a rear panel, and a circuit board received in the main body. The main body defines a first opening and a second opening relative to the first opening. The front panel is received in the first opening. The rear panel is received in the second opening and electrically coupled to a ground wire of the circuit board. 1. An electronic device comprising:a non-metallic main body defining a first opening, and a second opening opposite to the first opening;a front panel received in the first opening of the main body;a metallic rear panel received in the second opening of the main body; anda circuit board received in the main body, a ground wire of the circuit board electronically coupled to the rear panel.2. The electronic device of claim 1 , wherein the main body is made of paper or plastic materials.3. The electronic device of claim 2 , wherein the main body comprises a U-shaped base and a U-shaped cover coupled to the base claim 2 , and the front panel and the rear panel are located at opposite sides of the base.4. The electronic device of claim 3 , wherein the U-shaped base is folded by a foldable plate claim 3 , and the U-shaped cover is folded by another foldable plate.5. The electronic device of claim 2 , wherein the main body is substantially an enclosed configuration folded by a foldable panel.6. The electronic device of claim 5 , wherein a plurality of parallel folding-lines configured to be folded along is impressed on the foldable panel.7. The electronic device of claim 6 , wherein an extending direction of the plurality of folding-lines is substantially perpendicular to the front panel and the rear panel.8. The electronic device of claim 5 , wherein a metallic layer is placed on inner sidewalls of the main body to prevent electromagnetic interference generated by the circuit board emanating from the main body.9. The electronic device of claim 1 , further comprising a non-metallic bezel ...

METHOD OF JOINT CLUSTERING AND PRECODING AND BASE STATION USING THE SAME

A method of joint clustering and precoding and a base station using the same are provided and applicable to a non-orthogonal multiple access (NOMA) system. The method includes: dividing four user equipments into a first cluster and a second cluster each consisting of two user equipments; forming a first cluster signal and a second cluster signal for simultaneous transmission at the base station; establishing a first precoding set and a second precoding set for the first cluster and the second cluster, respectively, by using channel state information between the base station and all the user equipments; selecting a first precoder from the first precoding set and a second precoder from the second precoding set; superposing the first cluster signal multiplied by the first precoder and the second cluster signal multiplied by the second precoder and broadcasting a resulting signal to the user equipments in the first and second cluster. 1. A method of joint clustering and precoding , adapted to a base station for transmitting messages to at least four user equipments in a non-orthogonal multiple access (NOMA) system , and comprising:dividing the at least four user equipments into a first cluster and a second cluster each consisting of two user equipments;forming a first cluster signal to be transmitted to the first cluster and a second cluster signal to be transmitted to the second cluster;establishing a first precoding set and a second precoding set for the first cluster and the second cluster, respectively, by using channel state information between the base station and the at least four user equipments;selecting a first precoder from the first precoding set and selecting a second precoder from the second precoding set, wherein the second precoder aligns a first channel and a second channel between the base station and the user equipments in the first cluster to a first space, and the first precoder aligns a third channel and a fourth channel between the base station ...

JOINT POWER ALLOCATION, PRECODING, AND DECODING METHOD AND BASE STATION THEREOF

This invention provides a joint power allocation, precoding, and decoding method and a base station thereof. They are applicable to multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems. The method includes: (1) decomposing the precoder for each cluster into a first precoder and a second precoder; (2) obtaining the mean-squared error (MSE) functions of the decoded signals for all user equipment devices in each cluster; (3) calculating the power allocation factors for each cluster in the case of minimizing the maximum of all the MSE functions in each cluster; and (4) obtaining the second precoder and the decoders for each cluster in the case of minimizing a sum of the MSE functions of the decoded signals for all user equipment devices in all clusters under a total power constraint according to the power allocation factors. 1. A joint power allocation , precoding , and decoding method , adapted to a base station used for transmitting messages to 2K user equipment devices (UEs) in a multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) system , wherein the 2K UEs are divided into K clusters , each of the K clusters includes two UEs , the UE with a larger channel gain in each of the K clusters is called a strong user , and the other UE is called a weak user , and the joint power allocation , precoding , and decoding method comprises:(1) decomposing a precoder corresponding to each of the K clusters into a first precoder and a second precoder, wherein the first precoder is generated according to a block diagonalization precoding technique;(2) obtaining a first mean-squared error (MSE) function of a first signal decoded by a first decoder and a second MSE function of a second signal decoded by a second decoder that are related to the strong user, and a third MSE function of a second signal decoded by a third decoder that is related to the weak user in each of the K clusters;{'sub': k', 'k, '(3) calculating a power allocation ...

Electronic device enclosure for storage devices

An electronic device enclosure includes a case; a securing member attached to the case, and a bracket used for receiving a storage device. The securing member defines a receiving hole, and a limiting portion is located on the securing member. The limiting portion comprises a plurality of protruding blocks. The bracket comprises a resisting portion and a rotating portion movably received in the receiving hole. The bracket is rotatable about the rotating portion relative to the case. The resisting portion is resisted on one of the plurality of protruding blocks to prevent the bracket from moving.

BEZEL ASSEMBLY FOR ELECTRONIC DEVICE

A bezel assembly includes a panel, and a shielding member. The panel includes a main body and two latching structures located on the main body. Each of the two latching structures includes a latching board, and the latching board defines a latching hole and a guiding slot in communication with the latching hole. The shielding member is engaged with the main body and comprises two rotating arms. Each of the two rotating arms is rotatably engaged in the latching hole of each of the two latching structures, and the latching board is resiliently deformable to disengage each of the two rotating arms from the latching hole along the guiding slot. 1. A bezel assembly comprising:a panel comprising a main body and a latching structure located on the main body, the latching structure comprising a latching board, and a limiting board opposite to the latching board, and the latching board defining a latching hole and a guiding slot in communication with the latching hole; anda shielding member engaged with the main body and comprising a rotating arm located between the latching board and the limiting board;wherein the rotating arm is rotatably engaged in the latching hole, and the latching board is resiliently deformable to disengage the rotating arm from the latching hole along the guiding slot.2. The bezel assembly of claim 1 , wherein the latching board comprises a first latching piece and a second latching piece extending from the first latching piece claim 1 , the latching hole is defined in the first latching piece claim 1 , and the guiding slot is defined in the second latching piece.3. The bezel assembly of claim 2 , wherein an obtuse angle is defined between the first latching piece and the second latching piece.4. The bezel assembly of claim 2 , wherein the limiting board defines a limiting slot claim 2 , the rotating arm comprises a rotating shaft claim 2 , and the rotating shaft is engaged in the latching hole and the limiting slot claim 2 , and the latching board ...

MOUNTING APPARATUS FOR DATA STORAGE DEVICES

A mounting apparatus includes a drive bracket and a securing piece. The drive bracket includes a bottom plate and a side plate. A separating plate is located on the bottom plate to divide the drive bracket into a first portion and a second portion. The first portion defines an engaging hole. The second portion defines a first slide groove. 1. A mounting apparatus for mounting a first data storage device and a second data storage device , the mounting apparatus comprising:a drive bracket comprising a bottom plate and a side plate;a separating plate located on the bottom plate to divide the drive bracket into a first portion and a second portion, the first portion defining an engaging hole, the second portion defining a first slide groove;an elastic piece mounted on the side plate, the elastic piece defining a receiving hole;a securing piece mounted on the first data storage device, the securing piece comprising a clip engaged in the engaging hole to mount the first data storage device in the first portion; anda first sliding block mounted on the second data storage device; the elastic piece is elastically bent to allow the first sliding block to slide in the first slide groove, and the first sliding block is engaged in the receiving hole to mount the second data storage device in the second portion.2. The mounting apparatus of claim 1 , wherein the side plate comprises a restricting piece claim 1 , and the restricting piece is configured to restrict a top portion of the first data storage device.3. The mounting apparatus of claim 2 , wherein the securing piece comprises a blocking piece claim 2 , and the blocking piece abuts the separating plate.4. The mounting apparatus of claim 1 , wherein the first slide groove comprises a first guiding portion and a first restricting portion perpendicularly connected to the first guiding portion claim 1 , the first guiding portion is located above the first restricting portion claim 1 , and the first guiding portion extends ...

RELAY PRECODER SELECTION METHOD FOR TWO-WAY AMPLIFY-AND-FORWARD MIMO RELAY SYSTEMS AND COMMUNICATION DEVICES USING THE SELECTION METHOD OR THE SELECTED RELAY PRECODER

This invention provides a relay precoder selection method for two-way amplify-and-forward multiple-input multiple-output (MIMO) relay systems and communication devices using the selection method or the selected relay precoder. According to the relationship between a relay precoder and the singular values of the effective MIMO channels, a set of candidate relay precoders are constructed based on the singular vector subspaces of cascaded MIMO channels, and one of them is selected for meeting a specific design criterion, such as the minimum sum of mean-squared errors, the maximum sum of channel capacities, and the minimum or maximum sum of condition numbers, where the condition number is defined as the ratio of the largest to the smallest singular value of a MIMO channel. As compared with the iterative design methods with the best performance, this invention achieves close performance while requiring much lower computational complexity. 1. A relay precoder selection method for two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay systems , comprising:obtaining two-way MIMO channel information between at least two terminals and a relay;constructing a candidate relay precoding set based on the two-way MIMO channel information; andselecting a relay precoder with the best performance from the candidate relay precoding set.2. The relay precoder selection method of claim 1 , wherein the two-way MIMO channel information includes forward and backward MIMO channels claim 1 , and each of the forward and backward MIMO channels has a plurality of eigenmodes claim 1 , and each of the plurality of eigenmodes corresponds to a singular value and a singular vector.3. The relay precoder selection method of claim 2 , wherein the candidate relay precoding set includes a plurality of candidate relay precoders claim 2 , and the candidate relay precoders are constructed based on the relationship between a relay precoder and the singular values of the effective MIMO ...

ENCODING AND DECODING METHOD OF LOW-DENSITY PARITY-CHECK CODE

An encoding and decoding method of low-density parity-check code is disclosed. The method is following steps: a high rate check code is transferred to a check matrix having a protograph. The check matrix is extended to form an extended base matrix and is split to form a split base matrix. The extended base matrix and the split base matrix are respectively calculated to generate their decoding threshold by a protograph extrinsic information transfer chart. The base matrix with the lower decoding threshold is considered as a low rate base matrix. Repeating the above process until a stop condition is satisfied. The last low rate base matrix is expanded to form a parity check matrix. The transmission data is encoded and decoded by the parity check matrix. 1. An encoding and decoding method of low-density parity-check code adapted to encoding or decoding data in a wireless communication network , the method being performed by a computing device and comprising following steps of:converting a high rate check code to a check matrix having a protograph;extending the check matrix to form an extended base matrix and splitting the check matrix to form a split base matrix;respectively calculating the extended base matrix and the split base matrix to generate a decoding threshold of the extended base matrix and the split base matrix by using a protograph extrinsic information transfer chart, wherein one of the extended base matrix and the split base matrix with the lower decoding threshold is considered as a low rate base matrix;repeating the above steps until a stop condition is satisfied;the low rate base matrix satisfied with the stop condition to form a parity check matrix; andencoding and decoding transmission data by the parity check matrix.2. The encoding and decoding method of low-density parity-check code of claim 1 , wherein the transmission data is encoded by an encoder before being transmitted.3. The encoding and decoding method of low-density parity-check code of ...

Receiver of filter bank multicarrier communication system based on discrete hartley transform

A filter bank multicarrier communication system is proposed. The system adopts the real-valued discrete Hartley transform for both multicarrier modulation and demodulation, rather than the complex-valued inverse discrete Fourier transform for multicarrier modulation and the discrete Fourier transform for multicarrier demodulation in conventional filter bank multicarrier schemes, so as to reduce implementation complexity and to enhance system performance.

DECODING METHOD AND DECODER FOR LOW DENSITY PARITY CHECK CODE

A decoding method for low density parity check (LDPC) code, used to decode an input signal into a correct codeword according to a predetermined LDPC matrix, is provided. The method includes performing a plurality of decoding attempts according to the LDPC matrix within a predetermined number of decoding attempts, the plurality of decoding attempts at least including a first decoding attempt with use of a first decoding schedule and a second decoding attempt with use of a second decoding schedule. The second decoding attempt is adjacently subsequent to the first decoding attempt. The first decoding schedule as a group is not included in the second decoding schedule. 1. A decoding method for low density parity check (LDPC) code , used to decode an input signal into a correct codeword according to a predetermined LDPC matrix , and comprising:performing a plurality of decoding attempts according to the LDPC matrix within a predetermined number of decoding attempts, the plurality of decoding attempts at least including a first decoding attempt with use of a first decoding schedule and a second decoding attempt with use of a second decoding schedule,wherein the second decoding attempt is adjacently subsequent to the first decoding attempt, and the first decoding attempt is not included in the second decoding attempt.2. The decoding method for LDPC code according to claim 1 , wherein the first decoding schedule is one of a layered belief propagation (LBP) sequence and a shuffled belief propagation (SBP) sequence claim 1 , and the second decoding schedule is another one of the LBP sequence and the SBP sequence.3. The decoding method for LDPC code according to claim 1 , wherein the first decoding schedule and the second decoding schedule are both the LBP sequence but the a code rate of the second decoding schedule is lower than a code rate of the first decoding schedule.4. The decoding method for LDPC code according to claim 1 , wherein the first decoding schedule and the ...

Computer chassis

A computer chassis capable of receiving multiple motherboards includes a shell and a first motherboard received in the shell. The shell includes a plurality of grooves and a pressing column. The computer chassis further includes a motherboard module, the motherboard module includes a bracket and a second motherboard received in the bracket. The bracket includes an operation member and a plurality of guide rails. The guide rails are inserted into the grooves, the operation member is rotated to drive the bracket to the first motherboard, until the motherboard module is slidably rotated in the shell. The second motherboard is thereby electrically connected with the first motherboard.

ELECTRONIC DEVICE AND HOUSING FOR ELECTRONIC DEVICE

A housing of an electronic device to prevent an output of electromagnetic radiation includes a shell, a conducting layer, and two side plates. The shell can be made of non-conducting material. The conducting layer is attached to the shell. The two side plates can be made of conducting material. The two side plates are fixed to two ends of the shell and are in contact with the conducting layer. The housing of the electronic device is electrically conductive. An electronic device is also provided. 1. A housing of an electronic device comprising:a shell made of non-conducting material;a conducting layer attached to the shell;a side plate comprising conducting material; andwherein the side plate is fixed to the shell and contacts with the conducting layer, and the side plate and the shell are electrically conductive; and the conducting layer is located within a space surrounded cooperatively by the shell and the side plate.2. The housing of claim 1 , wherein the shell comprises a base and a cover claim 1 , the conducting layer is attached to an inner surface of the cover and the base claim 1 , and the cover is electrically connected to the base via the side plate.3. The housing of claim 2 , wherein the conducting layer attached to the base and the cover and the side plate cooperatively define a shielded space to prevent electromagnetic radiation from leaking.4. The housing of claim 2 , wherein the side plate comprises two side pieces claim 2 , each side piece comprises a plurality of protrusions claim 2 , the plurality of protrusions of one of the two side pieces is attached to the conducting layer of the base claim 2 , and the side plate is electrically connected to the base.5. The housing of claim 4 , wherein the plurality of protrusions of another of the two side pieces is attached to the conducting layer of the cover claim 4 , and the side plate is electrically connected to the cover.6. The housing of claim 2 , wherein a cross section of the base is substantially U- ...

FIRE AND RADIATION-PROOF ENCLOSURE FOR ELECTRONIC DEVICE

An electronic device enclosure which is fireproof and shielded against electromagnetic radiation includes a base plate, a front plate, a rear plate, a first plate, a second plate, a case configured to be secured on the base plate, and a protective film of aluminum. The case can be opened and closed like the lid of a box and the base plate, the first side plate, the second plate, and the case are made of non-metallic material. The front plate and the rear plate are made of metal. The protective film is attached to the surfaces of the base plate, the first side plate, the second plate, and the case. 1. An electronic device enclosure comprising:a body comprising a base plate, a front plate, a rear plate, a first side plate, and a second side plate;a case configured to be secured on the base plate and is configured to rotate and to be closely attached on the first side plate and secured on the second side plate, the base plate, the first side plate, the second side plate, and the case are made of non-metallic material, the front plate and the rear plate are made of metallic material; anda protective film attached to the surfaces of the base plate, the first plate, the second plate, and the case and configured to provide a fire-resistant function and an anti-electromagnetic radiation function.2. The electronic device enclosure of claim 1 , wherein the front plate is substantially parallel to the rear plate and perpendicular to the base plate.3. The electronic device enclosure of claim 2 , wherein the base plate claim 2 , the front plate claim 2 , the rear plate claim 2 , the first side plate claim 2 , and the second side plate cooperatively define a receiving space configured to receive a plurality of electronic components claim 2 , and the plurality of electronic components are secured on the base plate.4. The electronic device enclosure of claim 3 , wherein the case comprises a bottom wall claim 3 , the bottom wall can be secured on the base by screw locking or pasting ...

Method and polar code decoder for determining to-be-flipped bit position

The disclosure provides a method and a polar code decoder for determining a to-be-flipped bit position when performing a successive cancellation list flip operation. The method includes: obtaining a polar code decoding tree generated by performing a successive cancellation list (SCL) operation on a polar code segment, and the polar code segment includes multiple bit positions, and each bit position in the polar code decoding tree includes multiple surviving paths and multiple pruned paths; in a post-processing stage for the SCL operation, estimating a correct path probability of each of the surviving paths and the pruned paths of the i-th bit position and accordingly estimating a reliability for the i-th bit position; selecting a specific bit position among the bit positions based on the reliability of each bit position; and performing an SCL flip operation on the polar code decoding tree based on the specific bit position.

Mounting apparatus for disk drive devices

Computer enclosure incorporating drive barcket

A computer enclosure includes a drive bracket ( 10 ), a cage ( 20 ), a holder ( 30 ) attached to a side panel ( 21 ) of the cage, and a slider ( 40 ) secured to a lower bottom plate ( 15 ) of the drive bracket. The holder defines an arcuate groove ( 32 ) and a guide way ( 35 ) therein. The slider comprises a first shaft ( 42 ) and a second shaft ( 43 ). The drive bracket is pivotably installed in the cage. The drive bracket rotates relative to the cage, with the first shaft sliding and being tightly held within the groove, and the second shaft sliding and tightly pressing on the guide way. The drive bracket can be rotated relative to the cage and located in any desired position during such rotation.

Mounting apparatus for data storage device

A data storage device mounting apparatus includes a drive bracket ( 10 ) and a cover ( 20 ). The drive bracket includes a first side plate ( 14 ) and a second side plate ( 16 ). The first side plate defines two engaging slots ( 140 ), and includes two positioning pins ( 144 ) engaging in positioning holes ( 32 ) of one side of a data storage device ( 30 ). The second side plate includes three locating flanges ( 160 ), and defines two locating holes ( 164 ). The cover includes a first edge portion ( 24 ) and a second edge portion ( 26 ). The first edge portion includes two engaging latches ( 240 ) engaging in the engaging slots respectively. The second edge portion includes three tabs defining three locating slots ( 262 ) engagingly receiving the locating flanges, and two locating posts ( 264 ) extending through the locating holes and engaging in positioning holes ( 32 ) of an opposite side of the data storage device.

Base station and modulation method supporting lattice-partition-based non-orthogonal multiple access

The invention discloses a base station and a modulation method supporting lattice-partition-based downlink non-orthogonal multiple access. The modulation method includes: modulating at least one most significant bit (MSB) of weak user equipment (UE) into a first signal with first transmission power; modulating at least one least significant bit (LSB) of the weak UE into a second signal with second transmission power, where the second transmission power is less than the first transmission power; and modulating at least one second MSB of strong UE into a third signal with third transmission power, where the third transmission power is between the first transmission power and the second transmission power.

Bracket mounting apparatus

一種支架固定裝置，包括電腦機箱及固定於所述電腦機箱上之支架與定位架，所述電腦機箱上開設有樞轉槽與第一限位槽，所述第一限位槽內設有配合部，所述支架上設有彈片、樞轉板及第二限位槽，所述彈片上設有缺口，所述第二限位槽包括導向槽與收容槽，所述定位架上設有抵壓部，所述抵壓部包括第一支撐部、第二支撐部及連接所述第一支撐部與第二支撐部之連接部，所述樞轉板插入樞轉槽，所述彈片繞樞轉板與樞轉槽轉動直至所述彈片進入第一限位槽，所述彈片彈性變形直至配合部卡入所述缺口，所述第二支撐部自收容槽滑入導向槽直至所述第二支撐部與導向槽末端相抵，所述第一支撐部位於收容槽內。

System and Method for Time-Domain Equalization in Discrete Multi-tone Systems

A novel time-domain equalizer (TEQ) is provided for the receiver of a Discrete Multi-tone (DMT) system to shorten the length of the effective channel impulse response. The TEQ is based on a variant of the conventional decision-feedback equalizer (DFE) structure along with a training method for the TEQ settings. By using this DFE-based TEQ for DMT systems, the data symbols transmitted through the effective shortened channel would be more reliable.

Successive cancellation list-based decoder and decoding method thereof

A successive cancellation list-based decoder and a decoding method thereof are provided. In the method, an error check is performed on a set of data bits. A data unit includes the set of the data bits and at least one first check bit. Part of the set of data bits are considered as at least one second check bit. At each of the second check bits, its previous error-check result are verified, where the verified result is related to a comparison between each of the previous first check bits and a value obtained through a function calculation on corresponding data bits. The verified result at each of the second check bits determines whether to continue decoding of the set of data bits or to early terminate the decoding process. The method is able to increase the probability for early termination of the decoding process and to improve the decoding efficiency.

無資料輔助時間同步之合作式多輸入多輸出正交分頻多工裝置

Method for reducing the handover frequency by a femto gateway in femtocell networks

A method for reducing the handover frequency by a femto gateway in femtocell networks includes the steps: receiving a measurement report from a communication device by an initial femtocell; transmitting a relocation required message to a femto gateway by the initial femtocell if the signal strength thereof is below a threshold; ignoring the relocation required message and enabling the timer by the femto gateway after receiving the relocation required message; determining whether the cell ID included in the call reestablishment request message is classified as “femtocell” or not by the femto gateway before the timer expires; if so, rebuilding the link to the femtocell in response to the cell ID by the femto gateway.

Integration control chip having the power control

導風罩

一種導風罩，能夠固定到一散熱模組上，該導風罩及該散熱模組均收容於一機殼內，該導風罩包括一基板及一連接於該基板上之卡扣板，該基板包括一能夠彈性變形之伸縮部，該卡扣板藉由該伸縮部彈性變形而卡扣到該散熱模組上，該基板抵靠於該機殼上從而防止熱氣流回流。

Radio frequency identification (RFID) tag suitable for metal environment

Agv localization accuracy measurement kit

An accuracy measurement kit is provided and includes a marker (1), at least one light beam device (2), an image capture device (3), and a processing device (A3). The marker may be disposed on an autonomous mobile vehicle (A) and includes a reference pattern. The light beam device (2) is configured to emit a light beam to the autonomous mobile vehicle (A) located at a predetermined position so as to form a light spot (12) on the marker (1). The processing device (A3) is configured to capture the light spot (12) on the autonomous mobile vehicle (A) for generating a to-be-analyzed image (33, 34, 35, 36) and to obtain an offset of the autonomous mobile vehicle (A) in an X-axis direction and a Y-axis direction by processing a plurality of images of the to-be-analyzed image (33, 34, 35, 36) corresponding to the reference pattern and the light spot (12).

Successive cancellation list-based decoder and decoding method thereof

A successive cancellation list-based decoder and a decoding method thereof are provided. In the method, an error check is performed on a set of data bits. A data unit includes the set of the data bits and at least one first check bit. Part of the set of data bits are considered as at least one second check bit. At each of the second check bits, its previous error-check result are verified, where the verified result is related to a comparison between each of the previous first check bits and a value obtained through a function calculation on corresponding data bits. The verified result at each of the second check bits determines whether to continue decoding of the set of data bits or to early terminate the decoding process. The method is able to increase the probability for early termination of the decoding process and to improve the decoding efficiency.

Apparatus for cooperative MIMO OFDM using non-data-aided timing synchronization

An apparatus for cooperative multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) is provided. The apparatus uses a new carrier assignment scheme (CAS) called generalized interleaved CAS, along with non-data-aided timing synchronization. With the generalized interleaved CAS, random OFDM signals are formed into patterns similar to unequal period synchronization patterns (UPSPs), and a corresponding non-data-aided timing synchronization scheme is set. With the help of majority vote refinement (MVR), the present invention achieves better timing synchronization and enhances the quality of signal demodulation.

在毫微微蜂窩式網路中利用毫微微蜂窩式閘道器減少換手次數之方法

一種在毫微微蜂窩式網路中利用毫微微蜂窩式閘道器減少換手次數之方法，其步驟包含：由一原始毫微微蜂窩式基地台接收一通訊裝置之測量報告；若原始毫微微蜂窩式基地台之訊號強度小於一門檻值，則由原始毫微微蜂窩式基地台傳送一需要換手訊息至一毫微微蜂窩式閘道器；在毫微微蜂窩式閘道器接收需要換手訊息後，暫緩換手程序並啟動一計時器；由毫微微蜂窩式閘道器在計時器時效內，檢查所接收到的通話重建請求訊息內所包含之基地台辨識碼是否屬於毫微微蜂窩式基地台；若是，則將通話重建至該基地台辨識碼所對應之毫微微蜂窩式基地台。

在毫微微蜂窩式網路中利用通訊裝置減少換手次數之方法

一種在毫微微蜂窩式網路中利用通訊裝置減少換手次數之方法，其步驟包含：利用一通訊裝置測量無線電訊號強度，並將對應之服務基地台資訊儲存至一快取記憶體；檢查快取記憶體之儲存內容是否屬於毫微微蜂窩式基地台資訊；若是，則由通訊裝置將測量報告中的宏蜂窩式基地台資訊刪除，並傳送至服務基地台；當通話中斷時，檢查快取記憶體之儲存內容是否屬於毫微微蜂窩式基地台資訊；若是，則啟動一計時器；在計時器之時效內，偵測一可用的毫微微蜂窩式基地台；傳送通話重建請求訊息至上述可用的毫微微蜂窩式基地台，以重建通話。

承載裝置

一種承載裝置包括殼體與固定架。該殼體具有一個第一收容部，該第一收容部用於承載第一資料記憶體。該固定架包括一個基座以及設置在基座上的支架。該基座固定在該殼體上，該支架可抽取地設置在該基座上。該支架與該基座相配合形成一個第二收容部，該第二收容部用於承載第二資料記憶體。該第二資料記憶體的尺寸小於第一資料記憶體。