|
Match
|
Document |
Document Title |
|
|
6473440 |
Clock supplying apparatus for multiline transmission system
An apparatus supplying a clock in a multiline radio transmission system. The apparatus includes a clock generator for generating a clock from a reference signal, a clock branching module for...
|
|
|
6049720 |
Link delay calculation and compensation system
The present link delay calculation system using a common reference signal and a pulsed or gated tone signal to determine the link delay. The system using a discrete-time Fourier transform to...
|
|
|
5991309 |
Bandwidth management system for a remote repeater network
A bandwidth management system for a remote repeater network for modifying a first signal to create a second signal within the bandwidth of a communications link, transferring the second signal...
|
|
|
5913172 |
Method and apparatus for reducing phase cancellation in a simulcast paging system
A transmitter includes a modulator, a power amplifier and a controller to reduce the effects of phase cancellation in a simulcast paging system. The modulator is digitally configurable to modulate...
|
|
|
5896560 |
Transmit control system using in-band tone signalling
A transmit control system using in-band tones for activating and deactivating one or more remote sites. The transmit control system detecting energy in two or more spectral regions to determine if...
|
|
|
EP0570547B1 |
TECHNIQUE FOR MEASURING CHANNEL DELAY
Abstract not available for EP0570547
|
|
|
5842134 |
Auto-alignment of clear voice and low speed digital data signals in a simulcast system
In a wide band radio frequency (RF) simulcast communications system analog voice signals are distributed in a digitized form over high speed data channels and processed as high speed data. A...
|
|
|
5805645 |
Control channel synchronization between DBC and Cellular networks
A downbanded Cellular network (DBC) is provided to supplement an adjacent or coincident standard Cellular network. The control channels used by the DBC and standard Cellular network are...
|
|
|
5784418 |
Dual band digital broadcast receiver
A digital broadcast transmission system comprises a plurality of spaced transmitters (6). Each transmitter (6) receives signals for transmission from a master transmitter (2), e.g. on a satellite,...
|
|
|
EP0848508A2 |
TDMA cellular communication system using a receiver station for detecting a timing difference between adjacent base stations
In a time-division multiple access cellular mobile communication system, first and second base stations respectively provide coverages over adjacent cells. A receiver station is located in a region...
|
|
|
5742907 |
Automatic clear voice and land-line backup alignment for simulcast system
In a multiple site radio frequency (RF) simuicasting transmission system, voice and digital data distributed via multi-phase modem over "land-line" inter-site communication links from a control...
|
|
|
EP0606236B1 |
SIMULCAST SYNCHRONIZATION AND EQUALIZATION SYSTEM
Abstract not available for EP0606236 Abstract of corresponding document: US5257404 A simulcast transmission system (10) and method provides for time synchronizing data transmissions from a...
|
|
|
EP0606272B1 |
SIMULCAST SYNCHRONIZATION AND EQUALIZATION SYSTEM AND METHOD THEREFOR
Abstract not available for EP0606272 Abstract of corresponding document: US5261118 A control station 12 initiates a system timing signal transmission which is re-transmitted from a satellite 14....
|
|
|
5594761 |
Control channel timing detection and self correction for digitally trunked simulcast radio communications system
A control channel timing monitor for a simulcast radio frequency (RF) digitally trunked mobile radio communications system continually monitors the outbound control channel timing of each of plural...
|
|
|
5542119 |
Method for selecting a highest quality signal for retransmission by base sites in a simulcast communication system
Processing of dispatch calls in a simulcast multisite communication system (100) begins when a source communication unit transmits a message to one or more network receivers. The received signals...
|
|
|
5517680 |
Self correction of PST simulcast system timing
Arrangements are disclosed for maintaining time synchronization of simulcast radio frequency communications system transmissions. A circuit continually instructs a modem to use the common system...
|
|
|
5423058 |
Simulcast transmission system with selective call tones
A simulcast radio transmission system (250) transmits message signals (318) including selective call tones, originating from a message source (202), to a geographical area (115). The simulcast...
|
|
|
5293380 |
Frame synchronization system among multiple radio base stations for TDMA digital mobile communications system
A TDMA digital mobile communications system prevents TDMA frame synchronization from being asynchronous among radio base stations when a communication held by a mobile station is handed over from...
|
|
|
EP0570547A1 |
TECHNIQUE FOR MEASURING CHANNEL DELAY.
Abstract not available for EP0570547
|
|
|
5261118 |
Simulcast synchronization and equalization system and method therefor
A control station 12 initiates a system timing signal transmission which is re-transmitted from a satellite 14. In response to receiving the system timing signal, the control station 12 then...
|
|
|
5257404 |
Simulcast synchronization and equalization system and method therefor
A simulcast transmission system (10) and method provides for time synchronizing data transmissions from a plurality of transmission stations (16, 18). The transmission stations (16, 18) include...
|
|
|
5216717 |
Frequency modulation broadcast transmitter synchronization method
A synchronized broadcast network comprises a main transmitter transmitting an audio source signal to a plurality of receiver/transmitter units remote from each other and from the main transmitter,...
|
|
|
5195091 |
Adaptive synchronization arrangement
A CDMA cellular radio-telephone system (FIG. 2) has switching systems (201) synchronized to public telephone network (100) timing signals (600), and radio telephones (203) and cell base stations...
|
|
|
5184347 |
Adaptive synchronization arrangement
A CDMA cellular radio-telephone system (FIG. 2) has switching systems (201) synchronized to public telephone network (100) timing signals (600), and radio telephones (203) and cell base stations...
|
|
|
5117503 |
Directional antenna arrangement method for simulcast broadcasting
A method of configuring directional antennas to more fully radiate a geographic region serviced by a simulcast radio system can reduce the number of omni-directional antennas used by prior art...
|
|
|
5068916 |
Coordination of wireless medium among a plurality of base stations
Method and apparatus for coordinating a usage of a wireless transmission medium among a plurality of transmission units (12). The transmission medium is of a type that is utilized in accordance...
|