Mobile two-way communication system

MOBILE TWO-WAY COMMUNICATION SYSTEM

A GROUND-TO-AIR TELEPHONE CALLING SYSTEM AND RELATED METHOD

A METHOD AND APPARATUS FOR PROCESSING PAGES

Data transmission in a mixed mobile cellular/paging radio system

MOBILE TWO-WAY COMMUNICATION SYSTEM

A two-way communication system for communication between a system network an d a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into zonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and zonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The system also uses a mobile unit which receives messages from the network and transmits messages to the network. The mobile unit includes a switch tha t allows a user to request the network to retransmit a received message that contains errors.

MOBILE TWO-WAY COMMUNICATION SYSTEM

... 2149125 9411960 PCTABS00032 A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into zonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and zonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The system also uses a mobile unit which receives messages from the network and transmits messages to the network. The mobile unit includes a switch that allows a user to request the network to retransmit a received message that contains errors.

GROUND-TO-AIR TELEPHONE CALLING SYSTEM AND RELATED METHOD

A ground-to-air telephone calling system is provided including a computer for receiving an airborne telephone number and a call-back number from a calling party and forming the telephone numbers into a data signal comporting with existing protocol filed in the FCC, an uplink unit for uplinking the data signal to a satellite and a plurality of downlink stations for receiving the data signal from the satellite; a plurality of ground stations corresponding to each of the downlink units for receiving the data signals and passing a call signal identifying the airborne telephone and particular ground station to a corresponding transmit/receive unit for subsequent transmission to the aircraft; a call being initiated from the ground station to the calling party over the public switched telephone network if the aircraft responds to the call signal.

AUTOMATED SEAMLESS CELLULAR TELEPHONE NETWORK

A system for establishing a communication link between a caller and a mobile communication device that includes a mobile telephone and a paging device capable of receiving information transmitted from a paging network. In addition to the mobile communication device, the system includes a telephone network, a first mobile switching center, a conference bridge, a paging network, and a second mobile switching center. The first mobile switching center receives a telephone call transmitted over the telephone network using an identification number of the mobile telephone. If the mobile communication device is not located in the area covered by the mobile switching center, the mobile switching center forwards the received telephone call to a conference bridge using a bridge number assigned to the mobile communication device. The conference bridge receives the forwarded telephone call and transmits an identification number of the paging device in the mobile communication device to the paging network ...

Brake pad assembly for wheel braking system of vehicle, has single rigid engagement panel whose surface area is greater than space defined by engagement apertures through which friction pad extend towards backing plate

Brake pad assembly has single rigid engagement panel (26) positioned between backing plate (12) and friction pad (24) for securing friction pad to backing plate. The engagement panel has multiple engagement apertures (34) disposed in several horizontal rows. Surface area of the panel is greater than the space defined by engagement apertures through which friction pad extend towards the backing plate. An Independent claim is also included for brake lining for wheel brake.

Method and system for mobile personal emergency response

Advanced mobile personal emergency response systems. An activator worn or carried by a user sends a medical or security alert to a portable mobile base station. The mobile base station transmits the alert to trained operators at a call center. An operator conducts one-way or two-way voice communication through the activator with the user during the emergency response. The mobile base station transmits current location coordinates to the operator, including the last known good coordinates when the user enters an area where the external location system does not work. Emergency responders can use a beacon function to locate a lost activator if they find the mobile base station. A voice quality self-test function is useful for increasing the user's confidence that the system is working. Users can employ a finder function to find one of the activator or mobile base station when the other device is available.

Method and system for efficiently providing two way communication between a central network and mobile unit

A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into zonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and zonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The preferred mobile unit includes a noise detector circuit to prevent unwanted transmissions. The system network further provides an adaptive registration feature for mobile units which controls the registration operations by the mobile units to maximize information throughput.

Probe guide and holder

A probe guide for holding a coating thickness measurement probe in contact with a coated workpiece such that repeatable thickness measurements may be made without the necessity of the user manually positioning the probe head for proper contact. The probe guide having a probe holding assembly mounted on a stand; the probe holding assembly constructed to permit the probe to swivel freely in any direction about the geometric center of the probe head face. A workpiece holding means is provided for holding the workpiece against a probe head of the probe. By positioning the workpiece holding means to forceably move the workpiece into contact with the probe head face, the probe will swivel until the resultant vector through the center of moment of the static forces through the workpiece acting on the probe head at the point or points of contact between the workpiece surface and the face of the probe head passes through the geometric center of the probe head face. With this construction, repeatable thickness measurements may be made and the probe may be used to measure coatings on workpieces which have complex shapes such as jewelry items and turbine blades.

Mobile two-way communication system

A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into tonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and tonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The system also uses a mobile unit which receives messages from the network and transmits messages to the network. The mobile unit includes a switch that allows a user to request the network to retransmit a received message that contains errors.

Data transmission in a mixed mobile cellular/paging radio system

A telecommunication system is disclosed which allows messages to be transmitted via a cellular phone channel and a paging channel to a mobile unit having both a mobile telephone and a page receiver. The telecommunication system receives a data message for a subscriber from a calling device, which is routed to a mobile telephone switching office (MTSO) via a central switching office. The MTSO can transmit a data message to the mobile telephone in the mobile unit via a cellular phone channel, and can also send a message to a Universal Messaging System (UMS) to be sent to a pager in the mobile unit via a paging channel. When the system is unable to deliver a data message to the mobile telephone via the cellular channel, it can store the message at the UMS or MTSO and send an alerting message to the mobile unit via the paging channel indicating that a message has been stored for later retrieval. Alternatively, the system can send the entire data message via the paging channel.

Slotted mesh attachment for brake linings

A brake lining assembly for a wheel brake of a vehicle braking system includes a backing plate and a friction pad overlying the backing plate. An engagement panel is disposed between the backing plate and the friction pad for securing the friction pad to the backing plate. The engagement panel includes a plurality of engagement apertures to secure the friction material to the backing plate. The surface area of the panel is greater than the space defined by the engagement apertures. The panel thus forms a rigid frame for the friction pad, and provides structural support.

Mobiles zwei-weg-kommunikationssystem

Crimping apparatus

Workpiece support and mask assemblies for radiation backscatter measuring instruments