Matches 351 - 400 out of 435 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
6130915 Process for transferring digital data via interference-affected radio channels and device for receiving digital data transmitted via interference-affected radio channels  
A method for transmitting digitally coded data of a radio program (A) is proposed, in which the digitally coded data are modulated by a modulation method, in particular by OFDM. The data are...
6122271 Digital communication system with integral messaging and method therefor  
A digital communications system (10) includes a transmitting apparatus (12) and a receiving apparatus (14). In addition to a primary information signal (16), messages and control signals (24) are...
6115371 Satellite uplink separation using time multiplexed global positioning system cell location beacon system  
A method for allocating bandwidth to devices seeking to initiate contact with a communication service is described. At each device, the location of the device is determined via a global positioning...
6108328 Method and arrangement for separating signals operating in the same channel  
The object of the invention is a method and an arrangement for separating signals operating in the same channel. In the solution according to the invention, the signals to be transmitted are...
6097772 System and method for detecting speech transmissions in the presence of control signaling  
A telecommunications system and method for improving the detection of speech and control signals within a telecommunications transmission, particularly, reducing the probability that the control...
6094444 Point-to-points signal transmission system  
A point-to-multiple points signal transmission system includes a central station and several participant stations by which the transmission channels between the central station and the participants...
6091719 System and method for transmitting paging message  
When a mobile station is to be called by a fixed terminal device as a caller side, incoming call information containing the intermittent receiving cycle of the mobile station and a mobile station...
6088349 Method, transmitter and receiver for the transmission and selection of local radio programs in a common-wave broadcasting network  
The common-wave broadcasting of radio programs is known in the art. Common-wave operation of radio transmitters allows the available transmission band width to be particularly well utilized, for...
6084861 Radio communication system  
A radio communication system in which each frame having an imbalanced transmission speed is time-divided to a low speed transmission area and to a high speed transmission area according to a...
6084868 Base station having transmitter power adjustment system  
6072792 Power control apparatus, and an associated method, for TDMA transmitter  
Power control apparatus and an associated method for a transmitting station operable in a TDMA communication system. The transmitting station includes transmitter branches for communicating...
6069901 Use of energy bursts for wireless networks  
A method and apparatus for communicating control signals via short energy bursts during a predetermined time interval. This method and apparatus is particularly well suited for wireless...
6061405 Time domain source matched multicarrier quadrature amplitude modulation (QAM) method and apparatus  
A multicarrier transmission system (100) routes data symbols from a data source (142) to a multicarrier modulator (145). Each modulator (201, 202, 203) within the multicarrier modulator (145) is...
6061343 Method and device to determine the transmission point in time of a first transfer in relation to another transfer in a radio medium  
The transmission points are determined in time for an asynchronous transfer of information (speech/data) in relation to a synchronous information transfer so that the asynchronous transmission does...
6055244 Method and apparatus for communicating different types of data in a data stream  
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...
6046993 Method to adapt a synchronous transmission  
6044086 Control signal transmission in digital radio telephony  
In transmission between a base station and a subscriber unit, system control signals are sent in time slots within fixed length time frames. The system control signals are fragmented, each fragment...
6038225 Communication system capable of switching between frames of differing configuration during communication, and a control method for the same  
In order to perform communication frame switching without cutting off data communication, a terminal which has received a real-time data communication connection request during communication using...
6021124 Multi-channel automatic retransmission query (ARQ) method  
A multi-channel Automatic Retransmission Query (ARQ) methods transmits data packets from a source to a destination over a communication link that is subdivided into a number of channels. A network...
6021125 Cellular wireless communications system and base station  
A cellular wireless communication system for further improving the quality of communications. The base station (BS11) notifies the communication channel which the mobile station (MS10) is using, to...
6018520 Base station apparatus and a mobile radio terminal for a radio communication system, and radio communication system, and a communicating method in a radio communication system  
A base station for a radio communication system suitable for use if a radio data communication network is configured using a mobile radio terminal has a base station apparatus for a radio...
5999523 Radiotelephone operating in a time-divided radiotelephone system  
The radiotelephone of a time-divided radiotelephone system, i.e. TDMA, has a first mode and a second mode, whereby in the first mode the transmitter (TX) is active and in the second mode the...
5987020 Intermittent transmission control system  
An intermittent transmission control system based on a TDMA system which involves a burst transmission, has a sound presence detector for detecting presence or absence of sound information to be...
5987018 Radio unit, method of communicating between radio units over a communications channel and method of preparing a sequence of data cells for transmission over a radio channel  
A radio unit (12) for communication over a communication channel (300) having repeating frames. The radio unit has a memory (131) with a table (280) of time locations in a frame and indications of...
5982742 Multiple access simplex mode communication systems and methods therefor  
An asynchronous time-hopping multiple access "(ATHMA") protocol and a simplex mode communication system utilizing the same requires no synchronization between transmitting stations, no handshaking...
5953666 Digital mobile communication system  
The present invention relates to a digital mobile communication system in which mobile stations (MS) and the fixed network comprise speech coders. The speech coders of the fixed network are located...
5949777 Wireless communication processor system  
A wireless communication processor system includes a wireless data/control commands transmission/reception unit, buffer memory for storing wirelessly received data and control commands, buffer...
5943333 Radio communications device and method  
A radio communications device is arranged to communicate time divided signals (60 and 70) over first (40) and second (50) time discontinuous systems having first and second frame structures...
5940444 DARS PSF with no data rate increase  
A digital audio radio system that employs transmitting multiple time-separated versions or legs of the same or substantially the same source signal to accommodate signal blockage problems while...
5936948 System and method of multiplexing digitized calls on intersystem transmission circuits in a radio telecommunications network  
A system and method of multiplexing a plurality of digitized data and packetized voice calls on an intersystem transmission circuit in a radio telecommunication system having a plurality of mobile...
5920545 Non-transparent data transmission in a digital telecommunications system  
A digital telecommunications system and method for non-transparent data transmission includes a non-transparent data connection between a transmitting party and a receiving party, on which channel...
5867492 Radio unit and method of communicating between radio units over a communications channel  
A method of communicating between radio units (10, 11, 12, 13) by transferring cells over a communication channel having repeating frames. A matrix (200) of frame positions is maintained, where a...
5838673 Radio telephone system for minimizing co-channel interference utilizing geographic separation of signals and transmission power control  
A system for minimizing co-channel interference between transmission sectors at their common periphery. The system exploits the geographic separation of potentially interfering mobile transmitters...
5796729 Integrated telecommunication system architecture for wireless and wireline access featuring PACS radio technology  
Disclosed is a telecommunication system that is both highly cost effective for small scale applications (for example, those having less than 80 lines), yet field upgrade-expandable to applications...
5768268 Wideband base station architecture for digital cellular communications system  
An open-architecture digital cellular base station readily adapted to support communication over a variety of air interface standards is disclosed herein. The base station includes a wideband...
5757784 Usage-based billing system for full mesh multimedia satellite network  
A satellite communications system is provided for full mesh connectivity between a number of earth terminals via a satellite link. The earth terminals are connected to user access devices to...
5734867 Method, device, microprocessor and microprocessor memory for instantaneous preemption of packet data  
The present invention provides a method (500), device (400), microprocessor (500) and microprocessor memory (400, 500, 600) for instantaneous preemption of packet-switched data from a user that has...
5710762 Frame structure having non-symmetrical slot assignments for mobile communications  
An improved frame structure for use in mobile communications systems utilizing slotted protocols is provided. According to the present invention, consecutive slots in a frame are assigned to each...
5691979 Signaling protocol for an infrastructureless communication system and method of using same  
A signaling protocol for an infrastructureless short range communication system uses slow frequency hopping compatible with the industrial/scientific/medical (ISM) frequency spectrum. The signaling...
5682403 Spread spectrum communication network signal processor  
A base station communicates with a plurality of mobile stations over a cellular network. In one embodiment, the base station includes a receiver configured to receive inbound information from the...
5671219 Communication protocol for spread spectrum communication  
A simple and flexible over-air protocol for use with a mobile telephone system, having hand-held telephones in a microcell or other type of cellular communication system. A method in which user...
5666357 DTMF tone passer in a voice communication system  
The present invention relates to a system and method for sending and receiving digital signals in a voice communication system. The system includes a data buffer, a tone detector, a speech encoder,...
5596603 Device for wireless transmission of digital data, in particular of audio data, by infrared light in headphones  
Infrared light is used in a device for wireless transmission of digital data, e.g. in headphones. In order to satisfy the strict requirements regarding compactness and power consumption, it is...
5592489 Data combination circuit device and data combination method  
A data combination circuit device includes an unfixed data shift register for shifting and outputting unfixed data, fixed data shift register for shifting and outputting fixed data independent of...
5581617 System for short-range transmission of signals over the air using a high frequency carrier  
A system is provided which transmits either analog or digital data signals over the air. The system includes a transmitter and a receiver. The transmitter and receiver are arranged to transmit...
5577031 Wideband channelizer incorporating diversity switch  
A diversity technique for use in a multichannel receiver such as a cellular base station which includes at least a pair of wideband digital filter bank analyzers, or so-called channelizers, to...
5507018 Method and a device for controlling a radio transmitter  
A method and a device for controlling the power of a control channel (BCCH) in a radiotelephone system, such as the GSM mobile radio network. In the method, the power of the control channel (BCCH)...
5499246 Digital radio receiver which detects when a portion of a burst is stolen for a control message  
A method of receiving data transmitted in a burst-mode radio communications such as GSM. Prior to transmission a set of first data elements (bits) relating to a first message which may be...
5491689 Method and apparatus for augmenting listening capacity of a signal destination  
Listening capacity of a signal destination is augmented through the provision of a master switching center (207) and a slave switching center (209) linked via a dedicated communication port (203)....
5490136 Method of controlling transmission on a same radio channel of variable-rate information streams in radio communication systems  
In a radio communication system, in particular a mobile communication system, variable-rate information flows originating from different sources (CV1, CS1; CV2, CS2) and relative to a same...
Matches 351 - 400 out of 435 < 1 2 3 4 5 6 7 8 9 >