Computer system, computer and method for performing thin provisioning capacity management in coordination with virtual machines

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.

Computer system, computer and method for performing thin provisioning capacity management in coordination with virtual machines

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.

OPTICAL DISC DEVICE

A cross section of a luminous flux of returning light from a disc is split into a plurality of regions, and an operation is performed so that a weighting of a light amount of a region which has favorable symmetry in a radial direction and is formed on a circumference of an ellipse among the split regions is increased. Further, a lens shift detection signal is formed, and a lens shift detection signal is canceled from a push-pull signal. 1. An optical disc device that records and/or reproduces information on an optical medium in which a guide groove is formed on a signal recording layer , the optical medium being capable of recording information in both a land portion and a groove portion formed by the guide groove , the optical disc device comprising:a light source;an objective lens configured to condense a light beam radiated from the light source onto the signal recording layer formed on the optical medium;an objective lens moving unit configured to move the objective lens in a tracking direction;an optical splitting element configured to split a luminous flux of a light beam reflected by the optical medium into a plurality of regions;a light detecting unit configured to receive each of light beams corresponding to the plurality of regions split by the optical splitting element and generate a light reception signal;a control signal generating unit configured to generate a tracking error signal indicating a deviation amount between a condensing spot on the signal recording layer and the guide groove in the tracking direction on the basis of a signal from the light detecting unit; anda servo control unit configured to move the objective lens in the tracking direction via the objective lens moving unit on the basis of the tracking error signal generated by the control signal generating unit and cause the objective lens to move and track on a desired land portion or groove portion,wherein a weighting of a second region among the plurality of regions is larger than a ...

Optical pickup apparatus and signal recording and/or reproducing apparatus

While supporting an optical disc having a recording density that is higher than conventional optical discs by shortening the wavelength of the emitted light and increasing the numerical aperture (NA) of an objective lens, a reduction in the size of an optical pickup apparatus relative to the size of a disc cartridge that houses the optical disc is achieved. The present invention includes a fixed optical system having a built-in light source, and a movable optical system having an objective lens. A parallel light beam that enters the movable optical system from the fixed optical system enters the movable optical system via a light path that is parallel to the direction in which the objective lens is movable and from the side on which a spindle motor is provided.

Optical pickup and optical disc apparatus

An optical pickup includes a light source for emitting a light beam; an objective lens for condensing the light beam emitted from the light source and irradiating an optical recording medium with the condensed light beam; a collimator lens, disposed between the light source and the objective lens, for forming the light beam emitted from the light source into a parallel light beam and guiding the parallel light beam to the objective lens; and an aberration correcting device, disposed in an optical path connecting the light source and the optical recording medium, for correcting aberration. The aberration correcting device is disposed in an optical path connecting the light source and the collimator lens.

Image processing apparatus, image processing method and scheduling apparatus

An image processing apparatus for performing image processing to image data, including: an image computing unit which performs to the image data the image processing including a matrix process performing a computation by using a pixel value of a plurality of pixels represented in a first direction and a second direction intersecting the first direction; a scheduling unit which calculates a number of wait pixels between first image frame and second image frame in the image data based on a size of the plurality of pixels and a presence or absence of an edge process of performing the matrix process using a copied pixel value; and an image data input control unit which outputs the image data of the first image frame to the image computing unit, delays an output of the image data of the second image frame by the number of wait pixels, and outputs the image data of the second image frame to the image computing unit.

COMPUTER SYSTEM AND METHOD OF MANAGING STORAGE SYSTEM

In an embodiment, a storage system includes pools each of which includes storage resources and is separated into tiers different in access performance. A management system monitors access performance of the pools to detect a risky pool expected to become unable to satisfy predetermined access performance requirements. The management system estimates access performance of each of one or more candidate pools in the pools in the case where a storage resource migrates from the candidate pool to the risky pool, by simulation based on variations in data arrangement in the pool caused by evacuating data held in the storage resource in the same pool for the migration of the storage resource. The management system determines that a storage resource migrates from a source pool of which the estimated access performance satisfies predetermined performance requirements to the risky pool.

Distortion compensating apparatus

A distortion compensating apparatus has an IQ imbalance compensation coefficient arithmetic circuit 31 for calculating, from correlation values of a transmission signal and a feedback signal, IQ imbalance compensation coefficients for compensating for IQ imbalance in a quadrature modulator 23; and an IQ imbalance compensator 21 for compensating for the IQ imbalance with respect to a distortion compensated signal output from a distortion compensator 11 according to the IQ imbalance compensation coefficients, and for outputting to the quadrature demodulator 23.

Optical medium reproducing apparatus, optical medium reproducing method, and optical medium

Provided is an optical medium reproducing apparatus including: a detection unit that divides a luminous flux into a plurality of regions including a first region and a second region which are different in a position in a radial direction and/or a tangential direction, and combines a plurality of detection signals in correspondence with the amount of light that is incident to each of the plurality of regions with combination patterns which are selected to form signals of a plurality of channels; a multi-input equalizer unit that includes a plurality of equalizer units to which the signals of the plurality of channels are respectively supplied, computes outputs of the plurality of equalizer units, and outputs the resultant value as an equalization signal; and a binarization unit that performs binarization processing with respect to the equalization signal to obtain binary data. An addition signal channel including a constant multiplication of detection signals of the first region and the ...

Recording apparatus, recording method, program, and recording medium

The present invention relates to a recording apparatus, a recording method, a program, and a recording medium whereby data is reproduced from a two-layer optical disk that has yet to be formatted completely. A control section 51 divides a recording area of a layer L0 of the optical disk 33 into a plurality of recording regions and a recording area of a layer L1 of the same disk 33 into a plurality of recording regions at substantially the same physical positions as the recording regions of the layer L0. A control section 51 records the region where user-designated data was last written. The control section 51 controls a signal processing section 56 to write dummy data to the recording area of the layer L0 or L1 different from the layer that includes the region to which the user-designated data was last written. The signal processing section 56 is then controlled to write dummy data to the recording area of the layer containing the region where the user-designated data was last written, ...

Electronic control unit and electric power steering apparatus equipped with the same

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected.

Optical disc device

A cross section of a luminous flux of returning light from a disc is split into a plurality of regions, and an operation is performed so that a weighting of a light amount of a region which has favorable symmetry in a radial direction and is formed on a circumference of an ellipse among the split regions is increased. Further, a lens shift detection signal is formed, and a lens shift detection signal is canceled from a push-pull signal.

OPTICAL MEDIUM REPRODUCING DEVICE AND OPTICAL MEDIUM REPRODUCING METHOD

There is provided an optical medium reproducing device configured to optically reproduce an optical medium including a plurality of tracks formed, the optical medium reproducing device including: an optical filter configured to receive an incident returned light beam from the optical medium, and to spatially and optically form a plurality of signals having different bands in a tangential direction and a radial direction; an arithmetic unit configured to operate the plurality of first signals formed by the optical filter so as to form a plurality of channels of second signals; and an electrical filter configured to individually receive the second signals, and to perform processing to the second signals so as to acquire a reproduced signal.

Signal generating circuit

A signal generating circuit includes a control voltage setting unit (CVSU) configured to set a control voltage for a chirp signal using voltage-frequency characteristics indicating characteristics of an output frequency versus voltage; a VCO configured to alter the frequency of its output signal by the control voltage; a quadrature demodulator configured to perform quadrature demodulation of the output signal of the VCO to generate an inphase signal and a quadrature signal orthogonal to each other; and a frequency detector configured to detect the frequency of the output signal of the VCO on the basis of the inphase signal and quadrature signal. The CVSU corrects the control voltage by using the voltage-frequency characteristics derived from relationships between the control voltage and the frequency of the output signal of the VCO. The VCO generates the chirp signal based on the control voltage corrected by the CVSU.

Electronic control unit and electric power steering apparatus equipped with the same

An electronic control unit where an external watch dog timer (WDT) can always normally detect an abnormality (a failure) to a micro controller unit (MCU) related to a built-in self-test (BIST) function and which can maintain safety of a system. The control unit includes an external WDT to detect an abnormality of the MCU, a reset circuit to reset the MCU when the external WDT detects the abnormality of the MCU, and an ON/OFF control section to turn a gate of the semiconductor switching device on or off in accordance with the external WDT. The inverter is stopped by turning the gate off via the ON/OFF control section when the external WDT is a disable state. When the abnormality of the MCU is not detected in an enable state, the inverter is driven by turning the gate on via the ON/OFF control section. When the abnormality of the MCU is detected, the inverter is stopped by turning the gate off via the ON/OFF control section and the MCU is reset by the reset circuit.

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

Optical pickup apparatus and signal recording and/or reproducing apparatus

While supporting an optical disc having a recording density that is higher than conventional optical discs by shortening the wavelength of the emitted light and increasing the numerical aperture (NA) of an objective lens, a reduction in the size of an optical pickup apparatus relative to the size of a disc cartridge that houses the optical disc is achieved. The present invention includes a fixed optical system having a built-in light source, and a movable optical system having an objective lens. A parallel light beam that enters the movable optical system from the fixed optical system enters the movable optical system via a light path that is parallel to the direction in which the objective lens is movable and from the side on which a spindle motor is provided.

Phased array antenna device

Synthesizers (32, 24) for synthesizing feedback signals output from a plurality of antenna modules (4) are provided. A distortion compensation signal output unit (15) derives, from a difference between a feedback signal synthesized by the synthesizers (32, 24) and a base band signal output from a modulation unit (12), a distortion compensation coefficient that provides, to the base band signal, distortion characteristics opposite to distortion characteristics of a signal radiated from the phased array antenna and outputs a predistortion signal representing the distortion compensation coefficient to a PD unit (13).

Recording apparatus, recording method, program, and recording medium

The present invention relates to a recording apparatus, a recording method, a program, and a recording medium whereby data is reproduced from a two-layer optical disk that has yet to be formatted completely. A control section 51 divides a recording area of a layer L0 of the optical disk 33 into a plurality of recording regions and a recording area of a layer L1 of the same disk 33 into a plurality of recording regions at substantially the same physical positions as the recording regions of the layer L0. A control section 51 records the region where user-designated data was last written. The control section 51 controls a signal processing section 56 to write dummy data to the recording area of the layer L0 or L1 different from the layer that includes the region to which the user-designated data was last written. The signal processing section 56 is then controlled to write dummy data to the recording area of the layer containing the region where the user-designated data was last written, ...

OPTICAL MEDIUM REPRODUCTION APPARATUS AND OPTICAL MEDIUM REPRODUCTION METHOD

The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters. 1. A reproduction apparatus for optically reproducing an optical medium formed with a plurality of tracks on which binary data has been recorded by mark portions and space portions having different lengths , comprising:a light source configured to output a laser beam;an object lens configured to converge the laser beam onto the optical medium;an optical filter configured to separate a change of brightness/darkness caused, on a pupil plane of the reflected laser beam returning from the optical medium, by a structure of the plurality of tracks and the data recorded by the mark portions and the space portions having the different lengths on the tracks into a plurality of signals having different spatial optical frequencies of periodic structures in a direction along the tracks of the mark portions and the space portions on the plurality of tracks including a track to be reproduced and/or a direction which perpendicularly crosses the tracks;a plurality of electric filters to which the plurality of signals formed by the optical filter are supplied, respectively; anda binarization unit configured to obtain binary data by performing a binarization processing on an equalized signal obtained by computing outputs from the plurality of electric filters, ...

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

Optical element and optical pick-up

An optical pick-up able to reduce a change of an optical axis of a light beam emitted to a photodetector when the optical element is tilted. An optical element in the optical pick-up is struck with an incident light beam from a first surface of a first prism, reflects the light beam refracted at the first surface at the second surface 161 b , refracts the reflected light beam at the joined surfaces of the first prism and the second prism, and further refracts the refracted light beam at the first surface of the second prism to form an emitted light beam. The direction of the incident light beam and the direction of the emitted light beam perpendicularly intersect in the same plane. The optical element is struck with the light beam from the direction of the light beam emitted from the first surface of the second prism, reflects the light beam refracted at the first surface at the film, refracts the reflected light beam at a third surface, and emits it in a direction opposite to the direction of the incident light beam to the photodetector.

Computer system and method of managing storage system monitoring access performance for risky pool detection

In an embodiment, a storage system includes pools each of which includes storage resources and is separated into tiers different in access performance. A management system monitors access performance of the pools to detect a risky pool expected to become unable to satisfy predetermined access performance requirements. The management system estimates access performance of each of one or more candidate pools in the pools in the case where a storage resource migrates from the candidate pool to the risky pool, by simulation based on variations in data arrangement in the pool caused by evacuating data held in the storage resource in the same pool for the migration of the storage resource. The management system determines that a storage resource migrates from a source pool of which the estimated access performance satisfies predetermined performance requirements to the risky pool.

Optical medium reproduction apparatus and optical medium reproduction method

The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters.

Disk recording apparatus, method, and recording control program

An optical disk recording apparatus includes a beam emitting unit operable to emit a first beam for irradiating a track on an optical disk so as to record data and second and third beams for irradiating spaces between the track and tracks on both sides of the track, respectively; a light detection mechanism operable to detect the first to third beams reflected from the optical disk; a tracking controller operable to control tracking of the first beam on the basis of results of the reflected first to third beams detected by the light detection mechanism; and a determination unit operable to determine whether the first beam records data on a white portion of the track or overwrites data on a recorded portion of the track based on changes in reflected light amounts of the second and third beams detected by the light detection mechanism.

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

Information recording medium and disc

An information recording medium includes a plurality of wobbled tracks, in which a phase mismatch range of an adjacent wobble is a portion of a range of one track.

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

Optical pickup and optical disk device

An optical pickup includes: a light source that emits a light beam; an object lens that condenses the light beam on a target recording layer of an optical disk; a lens moving unit; a condensing lens; a hologram element that diffracts, in diffracting a reflected light beam and separating it into reflected zeroth-order and first-order light beams, parts of the reflected first-order light beam in a first direction and sets them as first and second beams, diffracts parts of the reflected first-order light beam in a second direction and sets them as third and fourth beams; and a photodetector that receives the first and second beams and the third and fourth beams and generates light reception signals, and receives interlayer stray light of a part of the light beam reflected by the other recording layers other than the target recording layer and generates a stray light reception signal.

SIGNAL SOURCE SYNCHRONIZATION CIRCUIT

A signal source synchronization circuit includes: a first TDC circuit that measures a first path delay time which is a time difference between an input time of a trigger signal to a first input terminal and an input time of the trigger signal to a second input terminal; and a second TDC circuit that measures a second path delay time which is a time difference between an input time of the trigger signal to a first input terminal and an input time of the trigger signal to a second input terminal, wherein a first phase shifter adjustment circuit sets a phase adjustment amount corresponding to the first path delay time in a first phase shifter, and a second phase shifter adjustment circuit sets a phase adjustment amount corresponding to the second path delay time in a second phase shifter. 1. A signal source synchronization circuit comprising:a reference signal source that generates a reference signal;a first signal source circuit that adjusts a phase of the reference signal generated by the reference signal source and generates a signal synchronized with the reference signal after the phase adjustment;a second signal source circuit that adjusts a phase of the reference signal generated by the reference signal source and generates a signal synchronized with the reference signal after the phase adjustment;a trigger signal generation circuit that outputs a trigger signal;a first time difference measurement circuit that has a first input terminal to which the trigger signal outputted from the trigger signal generation circuit is directly inputted and a second input terminal to which the trigger signal outputted from the trigger signal generation circuit and then fed back via the first signal source circuit is inputted, and measures a time difference between an input time of the trigger signal to the first input terminal and an input time of the trigger signal to the second input terminal; anda second time difference measurement circuit that has a first input terminal to ...

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

COMPUTER SYSTEM, COMPUTER AND METHOD FOR PERFORMING THIN PROVISIONING CAPACITY MANAGEMENT IN COORDINATION WITH VIRTUAL MACHINES

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system. 1. A computer system , comprising:a storage system including a storage device and providing a storage level virtual volume; anda server computer coupled to the storage system and providing a virtual computer,wherein the storage system manages a storage area of the storage device as a plurality of low-level storage areas by dividing the storage area into first management units, manages a block address space of the storage level virtual volume as a plurality of low-level address areas by dividing the block address space into second management units of a size related to the first management units, and stores low-level area conversion information indicating the low-level storage areas which are allocated to the low-level address areas,wherein the server computer provides a server level virtual volume to the virtual computer, manages the storage level virtual volume as a plurality of high-level storage areas by dividing the storage level virtual volume into third management units, manages a block address space of the server level virtual volume as a plurality of high-level address areas by dividing the block address space into fourth management units related to the third management units, and stores high-level area conversion information indicating the high-level storage areas which are allocated to the high-level address areas,wherein the server computer receives a virtual machine deletion request specifying the virtual computer, identifies a prescribed high-level storage area allocated to the high-level address area ...

Optical pickup and optical disc apparatus

An optical pickup includes a light source for emitting a light beam; an objective lens for condensing the light beam emitted from the light source and irradiating an optical recording medium with the condensed light beam; a collimator lens, disposed between the light source and the objective lens, for forming the light beam emitted from the light source into a parallel light beam and guiding the parallel light beam to the objective lens; and an aberration correcting device, disposed in an optical path connecting the light source and the optical recording medium, for correcting aberration. The aberration correcting device is disposed in an optical path connecting the light source and the collimator lens.

INFORMATION RECORDING MEDIUM AND DISC

An information recording medium includes a plurality of wobbled tracks, in which a phase mismatch range of an adjacent wobble is a portion of a range of one track.

Signal source synchronization circuit

A signal source synchronization circuit includes: a first TDC circuit that measures a first path delay time which is a time difference between an input time of a trigger signal to a first input terminal and an input time of the trigger signal to a second input terminal; and a second TDC circuit that measures a second path delay time which is a time difference between an input time of the trigger signal to a first input terminal and an input time of the trigger signal to a second input terminal, wherein a first phase shifter adjustment circuit sets a phase adjustment amount corresponding to the first path delay time in a first phase shifter, and a second phase shifter adjustment circuit sets a phase adjustment amount corresponding to the second path delay time in a second phase shifter.

Optical pickup device

An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A beam shaping element having a hologram pattern on its incident surface and/or its radiating surface is provided on a divergent optical path of the radiated light beam from the semiconductor laser element between the semiconductor laser element and the collimator lens for shaping the light beam radiated from the semiconductor laser element for forming a beam spot of an optimum shape on the optical disc.

Distortion Compensating Apparatus

A distortion compensating apparatus has an IQ imbalance compensation coefficient arithmetic circuit 31 for calculating, from correlation values of a transmission signal and a feedback signal, IQ imbalance compensation coefficients for compensating for IQ imbalance in a quadrature modulator 23; and an IQ imbalance compensator 21 for compensating for the IQ imbalance with respect to a distortion compensated signal output from a distortion compensator 11 according to the IQ imbalance compensation coefficients, and for outputting to the quadrature demodulator 23.

Optical element and optical pick-up

An optical pick-up able to reduce a change of an optical axis of a light beam emitted to a photodetector when the optical element is tilted. An optical element in the optical pick-up is struck with an incident light beam from a first surface of a first prism, reflects the light beam refracted at the first surface at the second surface 161 b, refracts the reflected light beam at the joined surfaces of the first prism and the second prism, and further refracts the refracted light beam at the first surface of the second prism to form an emitted light beam. The direction of the incident light beam and the direction of the emitted light beam perpendicularly intersect in the same plane. The optical element is struck with the light beam from the direction of the light beam emitted from the first surface of the second prism, reflects the light beam refracted at the first surface at the film, refracts the reflected light beam at a third surface, and emits it in a direction opposite to the direction of the incident light beam to the photodetector.

Electronic control unit and electric power steering apparatus equipped with the same

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected.

Disk recording and reproducing device

A disk recording and reproducing device keeps a disk in a standby position spaced from the objective lens of an optical pickup to prevent the objective lens from contacting the surface of the disk even when the objective lens is moved within a movable range because the disk recording and reproducing device are subjected to vibrations, shocks, or the like. The disk recording and reproducing device has a slide plate slidable by a drive element through a rack. When the slide plate slides, the disk is pulled in a horizontal direction from a disk ejecting position and thereafter is lowered vertically and positioned in a disk writing/reading position in which information can be written on and read from the disk by an optical pickup. The slide plate has switch triggers, and a switch having contact pins detectable by the switch triggers is mounted on a chassis. While the disk is moving from the disk writing/reading position toward the disk ejecting position, one of the contact pins is operated ...

Computer system, computer and method for performing thin provisioning capacity management in coordination with virtual machines

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.

Optical medium reproducing device and optical medium reproducing method

There is provided an optical medium reproducing device configured to optically reproduce an optical medium including a plurality of tracks formed, the optical medium reproducing device including: an optical filter configured to receive an incident returned light beam from the optical medium, and to spatially and optically form a plurality of signals having different bands in a tangential direction and a radial direction; an arithmetic unit configured to operate the plurality of first signals formed by the optical filter so as to form a plurality of channels of second signals; and an electrical filter configured to individually receive the second signals, and to perform processing to the second signals so as to acquire a reproduced signal.

OPTICAL PICKUP AND OPTICAL DISC DEVICE

An optical pickup includes: a light source outputting a light beam; an objective lens collecting the light beam on a target recording layer as a target of plural recording layers provided in an optical disc; a lens moving unit moving the objective lens in a tracking direction nearly orthogonal to track grooves helically or coaxially formed in the target recording layer; a collective lens collecting a reflected light beam formed when the light beam is reflected by the optical disc; a diffraction optical element diffracting part of the reflected first-order light beam in predetermined directions as first, second, third and fourth beams; and a photodetector receiving the first and second beams using first and second light receiving areas, and generating light reception signals, and receiving the third and fourth beams using third and fourth light receiving areas, and generates light reception signals.

Optical pickup and optical disc device

An optical pickup includes: a light source outputting a light beam; an objective lens collecting the light beam on a target recording layer as a target of plural recording layers provided in an optical disc; a lens moving unit moving the objective lens in a tracking direction nearly orthogonal to track grooves helically or coaxially formed in the target recording layer; a collective lens collecting a reflected light beam formed when the light beam is reflected by the optical disc; a diffraction optical element diffracting part of the reflected first-order light beam in predetermined directions as first, second, third and fourth beams; and a photodetector receiving the first and second beams using first and second light receiving areas, and generating light reception signals, and receiving the third and fourth beams using third and fourth light receiving areas, and generates light reception signals.

Electronic control unit and electric power steering apparatus equipped with the same

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected.

Computer system performing capacity virtualization based on thin provisioning technology in both storage system and server computer

The management system identifies a server level virtual volume corresponding to a storage level pool on the basis of storage management information and server management information, and displays information relating to the correspondence between the storage level pool and the server level virtual volume. The storage management information represents correspondence between a storage level virtual volume to which a portion of an area is allocated from the storage level pool by thin provisioning technology at the storage level, and the storage level pool. The server management information represents correspondence between a server level virtual volume to which a portion of an area is allocated from the storage level virtual volume belonging to a server level pool by thin provisioning technology at the server level, and the storage level virtual volume.

Optical medium reproduction device and optical medium reproduction method

An optical medium reproduction device includes: a detection unit configured to form detection signals of respective channels by dividing a cross-section of a beam returning from the optical medium into a plurality of regions and performing division into at least one channel corresponding to the region at an outer side in a radial direction, at least one channel corresponding to the region that is different in position in a tangential direction, and a channel corresponding to the other regions, and, in a case of forming the detection signals of the channels, form the detection signal of at least one of the channels by weighting and adding a signal in a predetermined region among the plurality of regions; a multi-input equalizer unit configured to include a plurality of equalizer units to which the respective detection signals of the plurality of channels are supplied, and configured to form an equalized signal on the basis of the detection signals of the plurality of channels; and a binarization unit configured to perform a binarization process on the equalized signal to obtain binary data.

OPTICAL MEDIUM REPRODUCTION APPARATUS AND OPTICAL MEDIUM REPRODUCTION METHOD

The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters.

Optical pickup with a hologram to limit the aperture of two light beams with different wavelengths

An optical pickup device that is able to record/reproduce information signals for first and second optical discs with different recording capacities. The optical pickup device includes an objective lens for converging first and second light beams of different wavelengths on the signal recording layers of first and second optical discs having different substrate thicknesses, a beam splitter having the same transmittance to the first and second light beams and configured for separating the first and second light beams radiated by first and second light sources to fall on the beam splitter via a first objective lens or a second objective lens, and a hologram element arranged between the objective lens and the beam splitter for limiting the aperture of one of the first light beam and the second light beam and for correcting the spherical aberration caused by difference in the disc substrate thickness of the first and second optical discs. This configuration enables various optical elements, such as objective lens or beam splitter, to be used in common for the optical disc of different recording capacities.

Electronic control unit and electric power steering apparatus equipped with the same

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected.

ELECTRONIC CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected. 1. An electronic control unit that comprises a bridge having upper-stage field-effect transistors (FETs) and lower-stage FETs and driving-controls a three-phase blushless motor , via an inverter being supplied a power supply VR , by inputting a duty signal of a pulse width modulation (PWM) calculated in a micro controller unit (MCU) into a gate driving section , comprising:a reverse connection protective FET which is interposed between a battery and said power supply VR and turns-ON/OFF with a switching signal from said MCU;a diagnostic resistor voltage-dividing circuit which is supplied said power supply VR and outputs voltage-divided voltages obtained by voltage-dividing connection point voltages of said upper-stage FETs and said lower-stage FETs;an FET-short detecting section which is supplied said power supply VR, and detects at least one-side short failure of said upper-stage FETs and said lower-stage FETs based on said voltage-divided voltages and outputs an error notification; anda detecting-section-failure diagnostic function which inputs ...

ELECTRONIC CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected. 1. An electronic control unit that comprises a bridge having upper-stage field-effect transistors (FETs) and lower-stage FETs and driving-controls a three-phase blushless motor , via an inverter being supplied a power supply VR , by inputting a duty signal of a pulse width modulation (PWM) calculated in a micro controller unit (MCU) into a gate driving section , comprising:a reverse connection protective FET which is interposed between a battery and said power supply VR and turns-ON/OFF with a switching signal from said MCU;a diagnostic resistor voltage-dividing circuit which is supplied said power supply VR and outputs voltage-divided voltages obtained by voltage-dividing connection point voltages of said upper-stage FETs and said lower-stage FETs;an FET-short detecting section which is supplied said power supply VR, and detects at least one-side short failure of said upper-stage FETs and said lower-stage FETs based on said voltage-divided voltages and outputs an error notification;a dark current suppressing switch which is interposed between said ...

ELECTRONIC CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected. 1. An electronic control unit that driving-controls a motor , via an inverter comprising a bridge of upper-stage field-effect transistors (FETs) and lower-stage FETs , by inputting a duty signal of a pulse width modulation (PWM) calculated in a micro controller unit (MCU) into a gate driving section , comprising:an FET-short detecting section which detects a short failure of at least one side of said upper-stage FETs and said lower-stage FETs based on voltage-divided voltages obtained by voltage-dividing connection point voltages of said upper-stage FETs and said lower-stage FETs by using diagnostic resistor voltage-dividing circuit, and outputs an error notification; anda detecting-section-failure diagnostic function which is included in said MCU, and detects a failure of said FET-short detecting section, a serial peripheral interface (SPI) communication circuit;', 'a threshold setting section to set a threshold based on a setting signal from said SPI communication circuit;', 'a comparing section to compare said voltage-divided voltages with said ...

Phased array antenna device

Synthesizers ( 32, 24 ) for synthesizing feedback signals output from a plurality of antenna modules ( 4 ) are provided. A distortion compensation signal output unit ( 15 ) derives, from a difference between a feedback signal synthesized by the synthesizers ( 32, 24 ) and a base band signal output from a modulation unit ( 12 ), a distortion compensation coefficient that provides, to the base band signal, distortion characteristics opposite to distortion characteristics of a signal radiated from the phased array antenna and outputs a predistortion signal representing the distortion compensation coefficient to a PD unit ( 13 ).

COMPUTER SYSTEM, COMPUTER AND METHOD FOR PERFORMING THIN PROVISIONING CAPACITY MANAGEMENT IN COORDINATION WITH VIRTUAL MACHINES

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system. 1. A management system for managing a storage system configured to provide one or more storage level virtual volumes associated with a first storage level pool and a server computer configured to provide one or more server level virtual volumes associated with a server level pool to which the one or more storage level virtual volumes belong , comprising:an interface device to communicate with the storage system and the server computer;a storage device; anda processor coupled to the interface device and the storage device, receive storage level pool information that includes information of the capacity of the first storage level pool from the storage system,', 'store the received storage level pool information in the storage device,', 'receive a server level pool information that includes information of the capacity of the server level pool from the server computer,', 'store the received server level pool information in the storage device,', 'calculate a leverage ratio which is a ratio of total capacity of the one or more server level virtual volumes corresponding to the first storage level pool, to capacity of the first storage level pool, based on the storage level pool information and the server level pool information,', 'compare the leverage ratio to a predetermined threshold value, and', 'output information relating to a possibility of capacity insufficient has increased, if the leverage ratio is larger than the predetermined threshold value., 'wherein the processor is configured to'}2. The management system ...

RECEIVER

A signal source () supplies local signals having different phases to a first mixer () and a second mixer (). The first mixer () and the second mixer () perform frequency conversion on reception signals using the local signals. A first phase changing unit () and a second phase changing unit () receive output signals of the first mixer () and the second mixer () as input signals and generate in-phase and reversed phase signals of these signals. A first adder () adds output signals of the first phase changing unit () to separate multiple signals. A second adder () adds output signals of the second phase changing unit () to separate multiple signals. 1. A receiver , comprising:a signal source to generate first to fourth local signals;a first mixer to perform frequency conversion on four radio signals having different frequencies using the first and second local signals;a second mixer to perform frequency conversion on the four radio signals having different frequencies using the third and fourth local signals;a first phase changer to receive output signals of the first mixer and output signals of the second mixer as input signals and outputting signals obtained by changing phases of the input signals from first and second output terminals thereof;a second phase changer to receive output signals of the first mixer and output signals of the second mixer as input signals and outputting signals obtained by changing phases of the input signals from first and second output terminals thereof;a first adder to add the signals of the first and second output terminals of the first phase changer; anda second adder to add the signals of the first and second output terminals of the second phase changer,wherein the first local signal and the third local signal have a same frequency but are out of phase, the second local signal and the fourth local signal have a same frequency but are out of phase, and the first local signal and the second local signal have different frequencies.2. The ...

Optical medium reproduction device and optical medium reproduction method

An optical medium reproduction device includes: a detection unit configured to form detection signals of respective channels by dividing a cross-section of a beam returning from the optical medium into a plurality of regions and performing division into at least one channel corresponding to the region at an outer side in a radial direction, at least one channel corresponding to the region that is different in position in a tangential direction, and a channel corresponding to the other regions, and, in a case of forming the detection signals of the channels, form the detection signal of at least one of the channels by weighting and adding a signal in a predetermined region among the plurality of regions; a multi-input equalizer unit configured to include a plurality of equalizer units to which the respective detection signals of the plurality of channels are supplied, and configured to form an equalized signal on the basis of the detection signals of the plurality of channels; and a binarization unit configured to perform a binarization process on the equalized signal to obtain binary data.

ELECTRONIC CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME

An electronic control unit diagnoses a short failure of an inverter FETs and diagnoses whether the failure of the FET-short detecting section has occurred. The unit controls a motor through an inverter including a bridge having an upper-stage FETs and a lower-stage FETs via an MCU, having: an FET-short detecting section to detect a short failure of the upper-stage FETs and the lower-stage FETs based on respective connection point voltages of the upper-stage FETs and the lower-stage FETs; and a diagnostic function to detect a failure of the FET-short detecting section. The diagnostic function diagnoses the failure of the FET-short detecting section at start up and turns-OFF the upper-stage FETs and the lower-stage FETs when the failure is detected. The FET-short detecting section diagnoses the short failure of the upper-stage FETs and the lower-stage FETs when the failure of the FET-short detecting section is not detected. 121.-. (canceled)22. An electronic control unit that driving-controls a motor by means of an inverter which comprises a bridge having upper-stage field-effect transistors (FETs) and lower-stage FETs via a micro controller unit (MCU) , comprising:an FET-short detecting section to detect a short failure of said upper-stage FETs and said lower-stage FETs based on respective connection point voltages of said upper-stage FETs and said lower-stage FETs; anda detecting-section-failure diagnostic function to detect a failure of said FET-short detecting section,wherein said detecting-section-failure diagnostic function diagnoses said failure of said FET-short detecting section at start up and turns-OFF said upper-stage FETs and said lower-stage FETs when said failure of said FET-short detecting section is detected, andwherein said FET-short detecting section diagnoses said short failure of said upper-stage FETs and said lower-stage FETs when said failure of said FET-short detecting section is not detected.23. The electronic control unit according to claim ...

Computer system, computer and method for performing thin provisioning capacity management in coordination with virtual machines

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.

Optical medium reproducing apparatus, optical medium reproducing method, and optical medium

Provided is an optical medium reproducing apparatus including: a detection unit that divides a luminous flux into a plurality of regions including a first region and a second region which are different in a position in a radial direction and/or a tangential direction, and combines a plurality of detection signals in correspondence with the amount of light that is incident to each of the plurality of regions with combination patterns which are selected to form signals of a plurality of channels; a multi-input equalizer unit that includes a plurality of equalizer units to which the signals of the plurality of channels are respectively supplied, computes outputs of the plurality of equalizer units, and outputs the resultant value as an equalization signal; and a binarization unit that performs binarization processing with respect to the equalization signal to obtain binary data. An addition signal channel including a constant multiplication of detection signals of the first region and the second region is included in at least one of the combination patterns.

ELECTRONIC CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME

An electronic control unit where an external watch dog timer (WDT) can always normally detect an abnormality (a failure) to a micro controller unit (MCU) related to a built-in self-test (BIST) function and which can maintain safety of a system. The control unit includes an external WDT to detect an abnormality of the MCU, a reset circuit to reset the MCU when the external WDT detects the abnormality of the MCU, and an ON/OFF control section to turn a gate of the semiconductor switching device on or off in accordance with the external WDT. The inverter is stopped by turning the gate off via the ON/OFF control section when the external WDT is a disable state. When the abnormality of the MCU is not detected in an enable state, the inverter is driven by turning the gate on via the ON/OFF control section. When the abnormality of the MCU is detected, the inverter is stopped by turning the gate off via the ON/OFF control section and the MCU is reset by the reset circuit. 17-. (canceled)8. An electronic control unit that is controlled by a micro controller unit (an MCU) via an inverter constituted by a semiconductor switching device , comprising:an external watch dog timer (WDT) to detect an abnormality of said MCU,a reset circuit to reset said MCU when said external WDT detects said abnormality of said MCU, andan ON/OFF control section to turn a gate of said semiconductor switching device on or off in accordance with said external WDT,wherein said MCU has a built-in self-test (BIST) function or said MCU cooperates with an external circuit having said BIST function,wherein said inverter is stopped by turning said gate off via said ON/OFF control section when said external WDT is a disable state,wherein said external WDT comprises a control terminal for said disable state/said enable-state, and transits to said enable state by operating said control terminal from said MCU, andwherein when said abnormality of said MCU is not detected in an enable state to which said external ...

Metal halide lamp, and headlight device for automobile

【課題】水銀を本質的に用いないで環境に配慮するとともに、アークが細くなることによる明るさのちらつき発生を抑制した自動車前照灯用として好適なメタルハライドランプおよびこれを用いた自動車用前照灯装置を提供する。 【解決手段】メタルハライドランプＨＰＤＬは、内容積０．１ｃｃ以下の気密容器１ａおよび電極間距離が５ｍｍ以下の一対の電極１ｂを備えた放電容器ＩＴと、ナトリウムＮａ、スカンジウムＳｃ、インジウムＩｎおよび亜鉛Ｚｎのグループのハロゲン化物から選択された少なくとも２種を含み気密容器１ａの内容積に対して２．０〜３６．０ｍｇ／ｃｍ ２ の金属ハロゲン化物、ならびに希ガスを含み、気密容器１ａ内に封入されて水銀を本質的に含まない放電媒体と、外管ＯＴとを具備し、安定点灯時における管壁負荷が６０Ｗ／ｃｍ ２ 以上であり、かつ、水平点灯時における気密容器１ａの下部中央表面温度が５３０±３０℃である。 【選択図】図１

Manufacture of eared stretch-blown plastic bottle

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Apparatus for producing a fuel gas

Patent JPH0553533B2

Manufacturing method for thermoplastic resin foamed pipe

Magneto-optical recording/reproducing apparatus with optical pickup device having a multi-layer dielectric film beam splitter

An optical pickup device for an information recording and/or reproducing apparatus in which fluctuations in polarization film characteristics due to the variable incident angles of the light beam to the beam splitter may be reduced to prevent C/N characteristics from being lowered. The optical pickup device includes an objective lens 3 for converging a light beam L from a laser light source 1 to a magneto-optical disc 2, a beam splitter 8 arranged on a light path between the laser light source 1 and the objective lens 3 for guiding a return laser light beam Lr from the disc to outside of the light path, and a photodetector_4 for detecting the return light beam Lr guided by the beam splitter 8 to outside of the light path. The beam splitter 8 is arranged at a portion in the light path between the laser light source 1 and the objective lens 3 in which the light beam L from the laser light source 1 is in a state of a divergent light beam. The multi-layered dielectric film 12 of the beam splitter 8 is of polarization film characteristics of deflecting 65% of S-polarized light components and 35% of the P-polarized light components of the light beam L and the return light beam Lr incident on the multi-layered dielectric film 12.

Signal source synchronization circuit

A signal source synchronization circuit includes: a first TDC circuit (12) that measures a first path delay time (τa1) which is a time difference between an input time of a trigger signal to a first input terminal (a) and an input time of the trigger signal to a second input terminal (b); and a second TDC circuit (13) that measures a second path delay time (τa2) which is a time difference between an input time of the trigger signal to a first input terminal (a) and an input time of the trigger signal to a second input terminal (b), wherein a first phase shifter adjustment circuit (5) sets a phase adjustment amount corresponding to the first path delay time (τa1) in a first phase shifter (3), and a second phase shifter adjustment circuit (9) sets a phase adjustment amount corresponding to the second path delay time (τa2) in a second phase shifter (7).

Recording device and method, program and recording medium

The present invention relates to a recording apparatus, a recording method, a program, and a recording medium whereby data is reproduced from a two-layer optical disk that has yet to be formatted completely. A control section 51 divides a recording area of a layer L0 of the optical disk 33 into a plurality of recording regions and a recording area of a layer L1 of the same disk 33 into a plurality of recording regions at substantially the same physical positions as the recording regions of the layer L0. A control section 51 records the region where user-designated data was last written. The control section 51 controls a signal processing section 56 to write dummy data to the recording area of the layer L0 or L1 different from the layer that includes the region to which the user-designated data was last written. The signal processing section 56 is then controlled to write dummy data to the recording area of the layer containing the region where the user-designated data was last written, thus formatting the optical disk 33. This invention can be applied advantageously to the recording apparatus for recording data to optical disks.

Optical pickup device having optical element exhibiting polarized light selectivity loaded thereon and optical apparatus having the optical pickup device loaded thereon

Magneto-optical recording/reproducing apparatus with optical pickup device having a multi-layer dielectric film beam splitter

An optical pickup device for an information recording and/or reproducing apparatus in which fluctuations in polarization film characteristics due to the variable incident angles of the light beam to the beam splitter may be reduced to prevent C/N characteristics from being lowered. The optical pickup device includes an objective lens 3 for converging a light beam L from a laser light source 1 to a magneto-optical disc 2, a beam splitter 8 arranged on a light path between the laser light source 1 and the objective lens 3 for guiding a return laser light beam Lr from the disc to outside of the light path, and a photodetector_4 for detecting the return light beam Lr guided by the beam splitter 8 to outside of the light path. The beam splitter 8 is arranged at a portion in the light path between the laser light source 1 and the objective lens 3 in which the light beam L from the laser light source 1 is in a state of a divergent light beam. The multi-layered dielectric film 12 of the beam splitter 8 is of polarization film characteristics of deflecting 65% of S-polarized light components and 35% of the P-polarized light components of the light beam L and the return light beam Lr incident on the multi-layered dielectric film 12.

Signal-generating circuit

Optical head arrangement

Optical pickup device and reproducing apparatus for optical recording medium

A reproducing apparatus of an optical recording medium which is capable of reproducing at least two types of optical recording mediums including an optical recording medium, such as a so-called compact disk composed of a substrate having a thickness of 1.2 mm and an optical recording medium composed of a substrate having a thickness of 1.0 mm or smaller. The apparatus has a light source, an objective lens and a control portion. The light source emits light beams having a wavelength of 700 nm or shorter. The objective lens condenses the light beams emitted from the light source through the substrate of the optical recording medium. The objective lens has a numeral aperture of 0.45 or greater. The control portion controls the surface on which the light beams are focused by the objective lens to be positioned between the paraxial image surface and the minimum-wave-aberration image surface when data is recorded and/or reproduced to and from the optical recording medium composed of the substrate having a thickness of 1.0 mm or smaller.

Optical disc recorder

Optical pickup device

Optical pickup device

An optical pickup device has a beam splitter 24f to split a return beam into two beams LA, LB. One beam LB is passed through means 24d (eg a polarization selective grating) for separating the light into a plurality of beams LB0, LB1, LB2 having different polarization states. The beams LB0, LB1, LB2 are detected by a three-segment detector (25b, figure 8).

Frequency measurement circuit

【課題】出力電圧のダイナミックレンジを大きくすることなく、入力信号の周波数を高精度に計測することができる周波数計測回路を得る。 【解決手段】入力信号の周波数に応じたオン時間のパルス信号を出力するパルス発生回路１０４、１０５と、パルス信号のオン時間に応じてオン状態となるスイッチ１１２、１２２と、スイッチ１１２、１２２を介して互いに接続される定電流源１１１、１２１およびキャパシタ１１３、１２３とを有し、互いに異なる電圧を出力する２つ以上の充電回路１１０、２０と、を備えたものである。 【選択図】図１

Optical head apparatus

The present invention provides an optical head apparatus for a magneto-optical recording medium. The apparatus comprises a light beam source (61) for emitting a light beam, an objective lens (62) which focuses the light beam emitted from said light beam source (61) to the recording surface of a magneto-optical recording medium (110), a separating optical system (63-67) which separates the beam into a light beam emitted from said light beam source (61) and the reflected light beam reflected from the recording surface of the magneto-optical recording medium (110) via said objective lens (62), and a photodetector (68) for receiving said reflected light beam reflected from the recording surface, being separated by said separating optical system (63-67). The separating optical system (63-67) comprises a Wollaston prism (66) made of lithium niobate placed in the upstream side of said photodetector (68) and in the optical path of said reflective light beam reflected from the recording surface (110). Furthermore, the Wollaston prism (66) is formed by adhering a pair of lithium niobate optical prisms (66a, 66b) to each other, in such a manner that the crystal optical axis of the prism on the side for light beam incidence of said reflected light beam from the recording surface is tilted at an angle of 45° with respect to the polarization plane of said reflected light beam from the recording surface (110), and that the crystal optical axis of the prism on the side for emitting said reflected light beam from the recording surface (110) is tilted at an angle of 90° with respect to the polarization plane of said reflected light beam from the recording surface (110).

Optical scanning device for a magneto-optical recording and reproducing system

Optical pickup device

Signal-generating circuit

A conventional signal generating circuit has a problem of being unable to compensate for an error of a chirp signal when V-F characteristics of a VCO change suddenly owing to disturbance. A signal generating circuit of the invention includes a control voltage setting unit (CVSU) configured to set a control voltage for a chirp signal using voltage-frequency characteristics indicating characteristics of an output frequency versus voltage; a VCO configured to alter the frequency of its output signal by the control voltage; a quadrature demodulator configured to perform quadrature demodulation of the output signal of the VCO to generate an inphase signal and a quadrature signal orthogonal to each other; and a frequency detector configured to detect the frequency of the output signal of the VCO on the basis of the inphase signal and quadrature signal. The CVSU corrects the control voltage by using the voltage-frequency characteristics derived from relationships between the control voltage and the frequency of the output signal of the VCO. The VCO generates the chirp signal based on the control voltage corrected by the CVSU.

Ｉｑ誤差補正回路及び送受信機

【課題】送信信号の放射を停止することなく、直交変調部及び直交復調部で発生するＩＱ誤差を抑圧することができる。【解決手段】復調側補正部２６が、直交復調部２２により復調されたＩ信号とＱ信号からなる変調信号の帯域外に、直交復調部２２のＩＱ誤差に伴って生じるイメージ信号の電力ＰＩｍａｇｅ＿ＲＸが小さくなるように、直交復調部２２により復調されたＩ信号とＱ信号を補正し、変調側補正部２７が、直交変調部１５のＩＱ誤差に伴って生じるイメージ信号の電力ＰＩｍａｇｅ＿ＴＸが小さくなるように、信号変調部１１から出力されたＩ信号とＱ信号を補正する。【選択図】図１

イメージリジェクションミクサ

【課題】広い周波数範囲にわたって高いイメージリジェクション比を実現することが可能なイメージリジェクションミクサを得る。【解決手段】第１の経路には、第１のミクサ１０１と第１のフィルタ１０２と第１の可変利得増幅器１０３が挿入されている。第２の経路には、第２のミクサ１０５と第２のフィルタ１０６と移相器１０７と第２の可変利得増幅器１０８が挿入されている。第１のミクサ１０１の局部信号は第１の信号源１１０から与えられ、第２のミクサ１０５の局部信号は第２の信号源１１１から与えられる。制御部１１３は、第１の信号源１１０と第２の信号源１１１の位相差を制御すると共に、第１の可変利得増幅器１０３と第２の可変利得増幅器１０８の利得を制御する。【選択図】図１

光學媒體複製裝置及光學媒體複製方法

本發明係關於一種複製裝置。該複製裝置可包括一光學濾波器及電濾波器。該光學濾波器可經組態以提供對應於自一光學媒體返回之一光束之區域的電信號，該光束入射在該光學濾波器上，該光束之該等區域對應於一線密度方向及/或一軌道密度方向上之不同頻帶。該等電濾波器可經組態以至少部分基於由該光學濾波器提供之該等電信號而提供輸出，其中該複製裝置經組態以藉由組合該等電濾波器之該等輸出來獲得一複製信號。

Optical medium reproduction apparatus and optical medium reproduction method

The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters.

制御回路

【課題】 経路間のタイミングを高精度に一致させることができる制御回路を得る。 【解決手段】 入力端子と、前記入力端子から入力した信号に遅延を与える遅延素子と、前記遅延素子で遅延した信号が入力される被制御部と、所定の遅延量を設定する遅延設定部、前記入力端子から入力した信号に前記遅延設定部で設定した遅延量を与える遅延制御部、前記遅延制御部が出力した信号に応じた制御信号を生成し、この制御信号を前記被制御部に出力する制御回路部、前記被制御部が出力した信号と前記遅延設定部が設定した遅延量の情報と前記遅延制御部が出力した信号と前記制御回路部が生成した制御信号とが入力され、前記遅延設定部に遅延量の新たな設定値を出力する遅延検出部、を有する制御部と、前記被制御部が出力した信号を出力する出力端子と、を備えたことを特徴とする。 【選択図】 図１

指紋照合装置及びその照合方法

【課題】指紋照合装置において、指紋データを再登録する人と、既登録の人とが同一人であるかを確認できるようにする。 【解決手段】スイッチ等の操作により、再登録モードを設定した後、再登録する指紋データのＩＤ番号をＩＤ入力装置３を操作して入力する。このＩＤ番号に対応する指紋データが登録されていれば、再登録可能となる。ここで、登録ボタン４を押し、指紋読取り部２に指を置くと、指紋画像から特徴点・方向角などが抽出されて新指紋データが作成される。再登録データ認証手段１３は、新指紋データと指紋データ記憶装置１２中の旧指紋データ（今回入力したＩＤと同じＩＤに対応する指紋データ）とを照合し、認証ＯＫかＮＧかを判定する。 【選択図】　　　　図１

光磁気記録再生装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Optical medium reproduction apparatus and optical medium reproduction method

The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters.

指紋照合装置

【課題】 照合する部分の指紋の位置が変動するのを抑制して、指紋の照合精度を向上させた指紋照合装置を得る。また、指紋照合のタイミングの明確化を図って指紋の照合精度を向上させた指紋照合装置を得る。 【解決手段】 指の所定部位の指紋を露呈させる指置き部に通じる指挿入筒３を設け、この指挿入筒３に挿入された指４´を上記指置き部に導くようにして、指置き部に載置される指４´の位置を規制しておいて、上記指紋を撮像手段８で写し撮り、更に写し撮った指紋画像を処理して予め登録されている指紋と照合するようにしたものである。また、起動スイッチ３１が人為操作されると、撮像手段８に指置き部の画像の読取りを開始させるようにしたものである。 【選択図】 図２

サンプリングフィルタ

【課題】単極性の電圧電流変換回路を並列に接続することなく、正のタップ係数と負のタップ係数を同時に実現することができるサンプリングフィルタを提供する。 【解決手段】制御信号生成回路が充放電部３を構成しているスイッチ１１〜１７を制御して、電圧電流変換回路２から出力される電流を充放電部３を構成している２つのキャパシタ２１，２２に供給することで、キャパシタ２１，２２に電荷を充電させる一方、充放電部３を構成しているスイッチ１１〜１７を制御して、キャパシタ２１，２２に充電されている電荷を出力端子５，６に放電させる。 【選択図】図２

Amplitude/phase control device, amplitude/phase control method, amplification device, and radio transmitter

入退室管理システム

【課題】電源を内蔵するＲＦＩＤタグにおける消費電力を低減することができる入退室管理システムを提供する。 【解決手段】入退室管理システムにおいて、認証情報を無線信号により発信する非接触型ＩＤタグと、通行制限箇所に設けられたゲート装置と、非接触型ＩＤタグの認証情報に基づいて認証を行い、この認証に成功した場合にゲート装置の通過を許可するよう制御するゲート制御装置と、無線信号発信に必要な給電を行うタグ内蔵電源と、このタグ内蔵電源の給電を制御する電源制御手段と、を備え、認証に成功した場合に当該認証に成功したゲート装置のゲート識別情報をゲート側から非接触ＩＤタグへと送信し、このゲート識別情報を受信した非接触ＩＤタグは、少なくとも当該受信したゲート識別情報を構成要素に含む電源ＯＦＦ条件が成立した場合にタグ内蔵電源の給電をＯＦＦにする。 【選択図】図１

歪補償回路および歪補償方法

【課題】本発明は、補償用データに必要なメモリ量を低減可能な予歪補償回路を提供することを目的とする。【解決手段】基準温度における電力増幅部の入出力特性の非線形性を補償する第１の補償用データを有し、第１の補償用データのうち電力増幅部の出力電力検出値に対応するデータに従って、入力信号に対し補償処理を行なう第１補償部と、基準温度以外における電力増幅部の入出力特性の利得偏差特性と基準温度における利得偏差特性との特性差を補償する第２の補償用データを有し、第２の補償データのうち電力増幅部の温度検出値に対応するデータに従って、第１補償部で補償処理された入力信号に対し、補償処理を行なう第２補償部とを備える。【選択図】 図２

Amplitude/phase control device, amplitude/phase control method, amplification device, and radio transmitter

An amplitude and phase control device (10) is provided with a signal dividing unit (12) to divide a transmission signal into a first signal and a second signal and output each of the first signal and the second signal to a Doherty amplifier (14), an error calculating unit (16) to acquire, from the Doherty amplifier (14), a synthesized signal of a first signal amplified by the Doherty amplifier (14) and a second signal amplified by the Doherty amplifier (14), multiply the synthesized signal by a reciprocal of a gain of the Doherty amplifier (14), and calculate an error between a synthesized signal after being multiplied by the reciprocal and the transmission signal, and a controlling unit (17) to control an amplitude of each of the first signal and the second signal output from the signal dividing unit (12) depending on the error calculated by the error calculating unit (16), and control a phase difference between the first signal output from the signal dividing unit (12) and the second signal output from the signal dividing unit (12) depending on the error.

Ｉｑ誤差補償回路及び無線送信機

【課題】ＲＦ信号をＩＦ信号に変換するための局部発振源やミクサを不要にして、回路規模の小型化を図ることができるとともに、消費電力を低減することができるようにする。 【解決手段】電力増幅器７による増幅後のＲＦ信号の包絡線を検波して、その包絡線を示す包絡線信号を出力する包絡線信号検出部９と、包絡線信号検出部９から出力された包絡線信号をディジタル信号に変換するＡ／Ｄ変換器１０とを設け、ＩＱ誤差検出部１１が、Ａ／Ｄ変換器１０により変換されたディジタルの包絡線信号から直交変調器６で発生するＩＱ誤差を検出する。 【選択図】図１

照明システム

【課題】本発明は、部屋内の利用者が備えたタグと照明機器に対応するタグリーダと通信して存在位置近辺の照明を点灯／消灯する照明システムにおいて、利用者が複数のタグリーダの電波圏内に位置する場合に全てのタグリーダに対して通信するため、タグの電池の消耗が大きいという問題があった。 【解決手段】タグに予め部屋内の利用者の自席近辺のタグリーダに識別されるアンテナＩＤを登録しておく。利用者が自席近辺に位置するとき、タグが登録したアンテナＩＤに識別されるタグリーダからの電波を受信したときは、タグはそのタグリーダに対してアンテナＩＤを送信する。一方、登録したアンテナＩＤ以外のタグリーダからの電波を受信したときは、タグはそのタグリーダに対してアンテナＩＤを送信しない。送信回数を減らすことで消費電力を小さくし、タグの電池の消耗を抑えることが実現できる。 【選択図】 図４

光ピックアップ及び光ディスク装置

【課題】層間迷光による影響を受けることなくトラッキング制御に必要な受光信号を生成できるようにする。 【解決手段】光ディスク装置は、反射光ビームを回折させ、領域の一部分を除いた０次光でなる反射光ビームをほぼ直進させ光検出器４９の受光部Ｄ１で検出し受光信号を生成し、１次光の一部反射光ビームをそれぞれ縦方向へ回折させて受光領域Ｄ２で受光し受光信号を生成し、１次光のうちの一部反射光ビームそれぞれ横方向へ回折させて受光領域Ｄ３でそれぞれ受光し受光信号を生成する。これにより光ディスク装置は、複数の記録層からの層間迷光ビームによりそれぞれ形成される迷光パターンＷ５、Ｗ５０の影響を排除したトラッキングエラー信号を生成でき、精度良くトラッキング制御を行うことができる。 【選択図】図１１

車両誘導装置、車両誘導システム、車両誘導方法およびプログラム

【課題】物資を運搬する車両を適切に誘導することができる車両誘導装置を得ること。【解決手段】車両誘導装置１は、物資を運搬する車両の待機所と物資の仕分所とを含む災害拠点における、待機所に存在する車両に関する情報である車両情報を取得する車両状況取得部１３と、仕分所における物資に関する状況である物資状況を取得する物資状況取得部１２と、物資の運搬計画を取得する運搬計画取得部１４と、車両情報、物資状況および運搬計画を用いて、待機所から仕分所への車両の誘導方法を決定する車両誘導部１５と、を備える。【選択図】図１

指紋認証装置

【課題】 指紋認証端末器等の複数の指紋認証機器の一つに異常が発生したときに、他の正常指紋認証機器によって指紋認証動作を遂行する指紋認証装置を得る。 【解決手段】 一つの指紋認証機器に機能障害が発生したときに、作動対象指紋認証機器選択装置５の動作により他の指紋認証機器のデータを選択して組み合わせる。そして、組み合わされた正常な指紋認証機器による指紋認証動作が異常時制御手段１２によって指令される。 これにより、一つの指紋認証機器の故障発生により指紋認証データが消失したり、指紋認証装置全体が停止したりして、被認証者の特定個人認証不能事態の発生を未然に防ぎ、一つの指紋認証機器の故障時においても特定個人の認証機能を維持する。 【選択図】 図１

歪補償回路

【課題】電力増幅器の動作温度が変化して非線形特性が変化しても、１つのテーブルを格納するだけで、電力増幅器により増幅された信号に含まれる歪成分を高精度に補償することができるようにする。 【解決手段】ＣＣＤＦ値の参照値とＣＣＤＦ値算出部２１により算出されたＣＣＤＦ値との誤差ＣＣＤＦ＿Ｇｏｓａを算出する誤差算出部２４を設け、対応関係更新部２５が、誤差算出部２４により算出された誤差ＣＣＤＦ＿Ｇｏｓａにしたがってメモリ１１により格納されている補償テーブルにおける電力Ｐと補償係数Ｃ（Ｐ）の対応関係を更新する。 【選択図】図１

光媒体再生装置及び光媒体再生方法

【課題】ディフェクト等の外乱の影響を抑へクロストークを低減した光媒体再生装置を提供する。 【解決手段】複数トラックが形成される光媒体からの戻り光ビームが入射される空間光学的にタンジェンシャル方向及びラジアル方向に帯域の異なる複数の信号を形成する光学フィルタ１３１と、光学フィルタ１３１によって形成される複数の第１の信号を、演算して複数のチャンネルの第２の信号を形成する演算部１３２と、第２の信号がそれぞれ入力され、第２の信号を処理して再生信号を得る複数の電気フィルタ１３３ １ −１３３ ｎ とを備える。 【選択図】図７

メタルハライドランプおよび照明装置

【課題】始動電圧が低減した水銀を封入しないメタルハライドランプおよびこれを用いた照明装置を提供する。 【解決手段】メタルハライドランプは、最大内径がＤｍｍの包囲部１ａを備えた気密容器１、その内部に電極間距離Ｌｍｍで離間対向して封装された一対の電極１ｂ、ならびに包囲部１ａの内容積に対して５〜３０ｍｇ／ｃｃの薬品およびＸｅを主体として含み封入圧が２５℃で８気圧以上の希ガスからなり気密容器１内に封入された本質的に水銀を含まない放電媒体を具備し、一対の電極１ｂの少なくとも一方において電極先端から包囲部１ａの内面までの最短距離をｄｍｍとしたとき数式１（０．１１＜ｄ／Ｌ＜０．２４）および２（Ｄ≧２ｄ＋０．７）を満足するとともに、瞬時値が波高値の１０〜９０％の部分における電圧波形の立ち上がり時間が６０〜５００ｎｓの高電圧パルスを一対の電極間に印加したときに始動する。 【選択図】図３

出退勤管理システム

【課題】通勤用バスを利用して出勤した従業員が一斉に勤務場所のゲートを通る際でも、ゲートでの混雑を防止することができる出退勤管理システムを提供する。 【解決手段】勤務場所へ向かう従業員が利用する通勤用バスに設けられ、従業員の個人識別用カードから従業員に対応した個人識別情報を読み込む個人識別用カードリーダと、通勤用バスに設けられ、個人識別用カードリーダが従業員の各々の個人識別カードを読み込むたびに、従業員の各々に対応した個人識別情報を管理用カードに書き込む管理用カードライタと、通勤場所の出入口ゲート近傍に設けられ、管理用カードから従業員の各々に対応した個人識別情報を読み込んで、従業員の出退勤を管理する管理装置に出力する管理用カードリーダとを備えた。 【選択図】図１

情報記録媒体および原盤

【課題】隣接ウォブルの位相不一致に起因する光ディスクの特性の低下を抑制することができる情報記録媒体を提供する。 【解決手段】情報記録媒体は、ウォブルした複数のトラックを備える。隣接ウォブルの位相不一致範囲が、１トラックのうちの一部の範囲である。 【選択図】図３

信号同期回路

【課題】 回路規模の小さい信号同期回路を実現する。【解決手段】 互いに周波数の異なる第１の基準信号と第２の基準信号を受信し、これらを出力端子ごとに分波する分波手段と、上記分波手段で分波された上記第１の基準信号と上記第２の基準信号が互いに同一の周波数になるように少なくとも上記第１の基準信号と上記第２の基準信号のうち一つを周波数変換する周波数変換手段と、上記周波数変換手段に同一の周波数となった上記第１の基準信号と上記第２の基準信号を周波数混合する周波数混合手段と、を有する信号生成回路、を備える。【選択図】 図１

指紋照合装置

(57)【要約】 【課題】 指紋照合装置の照合ガイダンス表示に従っ て、個人認証の手続きを行うことができ、操作が簡易で 分かり易く、低コストな指紋照合装置を得ること。 【解決手段】 人間の指が接触するプリズム２ａの平面 部が一部露出して、プリズム２ａの平面部に接触した指 に対して光を照射する光源手段２ｃとこの平面部に接触 した指による反射光を撮像して前記指の指紋の画像を得 る撮像手段２ｂとを内蔵する筐体を備え、この筐体のプ リズム２ａの周辺部分を光源手段２ｃからの光を筐体外 部へ透過する部材で形成して、光源手段２ｃからの光を 利用者のための照合ガイダンス表示に用いる。

光ピックアップ及び光記録媒体駆動装置

【課題】層間迷光の影響を低減した適正なトラックエラー信号を簡易且つ小型の構成で検出可能とする光ピックアップ、光記録媒体駆動装置を提供する。 【解決手段】この光ピックアップは、光検出器９，１０を備え、光検出器の分割受光素子からの受光素子信号Ａ、Ｄの差分信号（Ａ−Ｄ）と、受光素子信号Ｂ１及びＢ２、Ｃ１及びＣ２の各和信号の差分信号である｛（Ｂ１＋Ｂ２）−（Ｃ１＋Ｃ２）｝とに基づいて、トラックエラー信号Ｔｒを（Ａ−Ｄ）−ｍａ（（Ｂ１＋Ｂ２）−（Ｃ１＋Ｃ２））（ｍａは、ラジアル方向に対するレンズシフトに応じたＤＣオフセットの傾きの比に基づいて設定された係数）に従って生成する。特に、２層ディスクの一方の記録層に記録又は再生する場合に係数ｍａをラジアル方向に対するレンズシフトに応じたＤＣオフセットの傾きの比に基づいて設定された補正係数よりも小さな値に補正して設定する。 【選択図】 図２

指紋認証装置

【課題】あるユーザーが承認したという行為を、複数のユーザーの指紋認証が取れれば、権限を代行して承認可能とすることができるようにした指紋認証装置を得る。 【解決手段】承認権限を持つマネージャーと、その代行入力を行う複数のユーザーとによる指紋認証において、承認権限を持つマネージャーが不在の場合に複数のユーザーの指紋認証を確認する指紋認証手段を備え、この指紋認証手段により複数のユーザーの指紋認証が取れた時に権限を代行してマネージャー承認を行えるようにする。 【選択図】 図２

資訊記錄媒體及母盤

本發明提供一種可抑制鄰接抖動之相位不一致所引起的光碟之特性降低的資訊記錄媒體。資訊記錄媒體具備抖動之複數條軌道。鄰接抖動之相位不一致範圍為1軌道中之一部分範圍。

Information recording media and master

本發明提供一種可抑制鄰接抖動之相位不一致所引起的光碟之特性降低的資訊記錄媒體。 資訊記錄媒體具備抖動之複數條軌道。鄰接抖動之相位不一致範圍為1軌道中之一部分範圍。

無線通信ネットワークシステム

(57)【要約】 【課題】 無線通信ネットワークシステムにおいて、構 成制御による通信方式を提供することを課題とする。 【解決手段】 構成制御時に送信する存在通知パケット に送信データを格納するデータ領域を設ける。各無線端 末では、隣接した無線端末から受取った存在通知パケッ ト内のデータから最新のものを抽出してフレームを再構 築して次の存在通知パケットとして送信する。これを繰 り返すことにより送信データが中継送信される。

Optical medium reproduction apparatus and optical medium reproduction method

The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters.