Matches 401 - 435 out of 435 < 1 2 3 4 5 6 7 8 9
Match Document Document Title
5400327 Automatic call distributor with wireless connection with remote unit and method  
An automatic call distribution system (10) with a computer controlled (14) multiport switch (12) provided with groups of remote data terminals (56) and remote internal telephonic units (54) which...
5375122 Telephony device for a telephony communications network with fixed stations and independent stations  
A fixed station (BFR1) is able to interact with a plurality of independent stations (SA1, . . . , SA4) and is linked to an external management unit (UGRB1) only by the intermediary of a single pair...
5361404 Diversity receiving system  
Two or more signal paths are provided for receiving a radio frequency signal. One or more signal paths include conventional bandpass filters for eliminating interference and noise signals. One or...
5329522 Space-division multiplex communication method of executing multiplex communication  
In a space-division multiplex communication method of executing multiplex communication according to this invention, a plurality of radio beams a--a' to d--d' radiated at same frequency in...
5267233 Radio set for an FDM-TDM-radio transmission set  
The apparatus is a radio set wherein a first auxiliary oscillator is provided in the transmission device which is connected to the transmission mixer and during the reception operation, the...
5239540 Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals  
An apparatus and method is described for transmitting, receiving and communicating program data signals which are combined with digital data signals. Preferably, the present invention compresses 30...
5239541 Antenna selection diversity reception apparatus  
An antenna selection decision system detects the level of the TDM burst immediately preceding to the TDM burst of the user's own channel and decides, on the basis of the detected level, to use the...
5220557 Multiple use digital transmitter/transceiver with time multiplexing  
A digital transmitter/transceiver accommodates multiple simultaneous receiver and transmitter channels by time division multiplexing the tuning and modulation hardware. Only a single...
5204862 TDM slot muting method and apparatus  
In a communications system network that comprises a plurality of communication systems and a processing multiplexer, a method and apparatus for selectively muting particular signal sources of a...
5175729 Radio with fast lock phase-locked loop  
A communication device (508) for use in a Time Division Multiplex (TDM) communication system (500) includes a transmitter, a receiver, and a frequency scanner for quickly scanning the radio...
5170490 Radio functions due to voice compression  
A method of voice communication is provided to avoid disruption in the received voice signal. A compressed voice signal is received occupying 100% of the audio time during a lesser percentage (352)...
5121243 Wireless optical communication system utilizing a single optical carrier frequency  
A wireless optical short-range communication system adapted for use as an intercom system. The system can be used in fast food restaurants and similar commercial institutions. The communication...
5040175 Wireless information transmission system  
A wireless local area network (10) includes a plurality of stations (12) adapted to transmit and receive message packets via a distribution system (30). In a time division multiplexing embodiment...
5027352 Receiver frequency offset bias circuit for TDM radios  
An improved bias control circuit (FIG. 2) is disclosed for a radio receiver (122) used in a communication system wherein a signalling preamble is sent prior to sending other information. The bias...
4956837 Apparatus for avoiding spectrum spreading when switching a transmitter on and off  
An apparatus for avoiding spectrum spreading in switching on and off a transmitter in a station included in a time multiplexed radio transmission system, e.g. a mobile telephony system, where two...
4821260 Transmission system  
A system for transmitting and receiving digitalized audio signals, particularly via satellites, wherein data sequences are arranged in timely succession within frames, wherein before transmission,...
4777633 Base station for wireless digital telephone system  
A base station for use in a subscriber communication network for communicating signals between subscriber stations and an external communication network having a plurality of ports includes a...
4755773 Phase modulator apparatus for generating a burst phase-modulated wave  
A time division communication system tends to develop noise responsive to variations of the output of the voltage supply which occur as the time slot signals switch on or off to thereby vary the...
4688218 Multiplex channels for continuous flow for numerical signal  
A digital data pack transmission system is especially--but not exclusiveluseful in videotex or teletext transmission (i.e. videotext or teletext data is transmitted during intervals between...
4646290 Data transmission method and apparatus  
A data transmission method and apparatus, particularly useful in an SCA FM subcarrier data transmission system, is disclosed. The method comprises selectively arranging individual characters of...
4546470 Communications systems  
A device for use in an intermediate station of a radio-relay communications system comprises a package consisting of a trunk switch, a multiplexer, and a demultiplexer. The switch (48) has three...
4507781 Time domain multiple access broadcasting, multipoint, and conferencing communication apparatus and method  
A method and apparatus are disclosed for conducting broadcast, multipoint, and conference communications in a TDMA network at various data rates while simultaneously conducting point-to-point...
4423413 Radiocommunication system in which a receiving station monitors a number of transmitters by time division  
System for transmitting, via radiocommunication channels, call messages as specified in CCIR Recommendation 493-1. The transmitter transmits every call message, having a duration t, n times with a...
4396801 Multiplex communication system employing pulse code modulation  
1. In a multichannel communication system in which the intelligence waves are transmitted by pulse code modulation, means for producing a plurality of series of pulses interleaved in their time of...
4184118 Base station feedback reporting system  
The operational status of equipment located at a base station is reported to a remote control terminal. The same audio channel that is used for sending audio signals and control signals to the base...
4184052 AM/FM time division surface wave device transmitter  
A device for sample modulating electronic information signals which includes mixing circuitry having a first input coupled to receive information signals, a second input for receiving electrical...
4145657 Radio transmission system for two subscribers to have a mutual connection on one of several frequency channels and having time multiplex interlace of preferred channels  
A radio transmission system in which two subscribers use only one of possibly several frequency channels for a mutual connection is characterized in that in the individual frequency channel which...
4041393 Vehicle voice data link  
A communication system operative on a time-shared basis on a single frequency between a plurality of mobile vehicles such as trucks and buses and one or more central base stations and associated...
4009346 Distributional activity compression  
Modular digital exchange terminals linked in a network by earth satellite provide coordinated multiplex switching and activity compression between line circuits and satellite time division...
3628147 TIME-DIVISION MULTIPLEX MOBILE COMMUNICATION SYSTEM  
A time-division multiplex mobile communication system allowing communications to be made between a plurality of railroad trains travelling on a predetermined railroad line and a central base...
3457373 AUTOMATIC CHANNEL SWITCHING DEVICE FOR MULTI-CHANNEL BINARY CODE TELECOMMUNICATION SYSTEM  
3256389 Signal processing system and method  
2840815 Radio multiplex communication system  
2836658 Multichannel communication systems  
2833861 Communication sysem, intermediate relay repeater station  
Matches 401 - 435 out of 435 < 1 2 3 4 5 6 7 8 9