|
Match
|
Document |
Document Title |
|
|
7149242 |
Communications system for improving transmission rates and transmission distances of data signals across communications links
A communications system includes a transmitter device, a receiver system, and a communications link. The communications link couples the transmitter device and the receiver system. The receiver...
|
|
|
6823001 |
Dual stage communication processor
A communications processor is presented that is capable of receiving a potentially degraded data transmission signals operating at high transmission rates and generating an improved data...
|
|
|
5924033 |
Communication control circuitry and method for a group of commonly-moving mobile transceiver units
Control circuitry and an associated method for a modified-user, wireless communications system, such as a cellular communication system were in groups of mobile transceiver units are positioned to...
|
|
|
5887245 |
Method and apparatus for regulating transmission power
In a telecommunications system, a method and system for power regulation compares the received power to a target value at a receiving station to adjust the power of the transmitting station...
|
|
|
5603080 |
Radio coverage in closed environments
A repeater system in a communication system including a base station and a mobile unit provides a communications link between the base station and the mobile unit when the mobile unit is located in...
|
|
|
5430760 |
Random access in mobile radio telephone systems
The present invention includes a system and method for minimizing interference between two radio stations, e.g., a mobile radio telephone and a fixed base station, at the initiation of a radio...
|
|
|
5408679 |
Mobile telecommunications system having an expanded operational zone
A mobile telecommunication system comprises a base station connected to a public communication network and having a non-directional antenna for broadcasting at a first frequency over a first...
|
|
|
5404570 |
Radio coverage in closed environments
A repeater system in a communication system including a base station and a mobile unit provides a communications link between the base station and the mobile unit when the mobile unit is located in...
|
|
|
5230098 |
Relay receiver having a variable bandwidth
A relay receiver performs a heterodyne relay operation by using a receiving frequency converting portion, an intermediate frequency amplifying portion and an automatic gain controller. The variable...
|
|
|
5218715 |
Multi-donor booster operation and system
A system and method for handing back a movable transceiver to a different cell site from the original cell site includes circuitry for sensing signals from the movable transceiver which are...
|
|
|
5152002 |
System and method for extending cell site coverage
A system and a method for extending coverage of a cell site in a cellular radio telephone system include a plurality of repeaters or boosters which are spaced through the region where increased...
|
|
|
5133080 |
Repeater for a controlled radio system
A repeater (30) is provided for relaying communication between a subscriber unit (24) and a central station (10) when the repeater recognizes transmission from the subscriber unit to the central...
|
|
|
5115514 |
Measuring and controlling signal feedback between the transmit and receive antennas of a communications booster
A cellular communication system booster has plural narrowband and wideband channels each having down mixers, local oscillators, IF filters, and amplifiers for amplifying communication signals. On a...
|
|
|
5095528 |
Repeater with feedback oscillation control
An apparatus for detecting excessive output power from a cellular radio telephone system booster includes input circuitry for receiving incoming radio frequency signals from a mobile source....
|
|
|
5047762 |
Method and apparatus for increasing co-channel utilization in a multi-station data communications network with overlapping coverage
A digital radio system having improved co-channel utilization is disclosed. A remote terminal receives a station identification from one of the fixed stations having an overlapping radio coverage...
|
|
|
4941200 |
Booster
An apparatus and method for selecting a number of cellular radio channels to be boosted in a given geographical area provides either F1-F1 or F1-F2 operation. The signals are be boosted at the same...
|
|
|
4811380 |
Cellular radiotelephone system with dropped call protection
An improved cellular telephone communication system is described having operational steps which prevent a call from being dropped due to a radiotelephone not receiving a handoff instruction from...
|