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Patent Searching and Data


Matches 151 - 200 out of 800

Document Document Title
WO/2000/031908A1
A method for communicating over a signal conduction medium (108) is provided. The method includes the steps of coupling (102) a communication device (106) to the signal conduction medium (108); storing a digital message packet in the com...  
WO/2000/022755A1
The invention relates to a method for operating a mobile radio system, whereby a radiomobile system using a combined frequency duplex method and time duplex method can be operated in a spectrum-efficient manner by configuring adjacent fr...  
WO/2000/011898A1
A method of the present invention is used for simultaneous transmission and/or reception of multiple different communication resources, with frequency allocations (FA1...FA8) and (FAA...FAH). A radio frequency device (901) of the present...  
WO/1999/041866A1
Since a time slot formed by time division multiplex is divided into a plurality of blocks in at least the frequency direction and, at the same time, a plurality of communication channels are formed in the time slot by forming a plurality...  
WO/1999/026438A1
Methods and systems of communication reduce the internal interference associated with conducting radio communication in a wireless local loop communication system down to acceptable levels. Problems associated with internal interference ...  
WO/1999/017452A1
An optical-to-electrical converter includes an input port configured to receive an optical signal. The converter further includes a splitter configured to split the received optical signal into a plurality of optical signals. An optical ...  
WO1999004339A3
An apparatus (10) for receiving an ATM cell stream sequence via a wireline link, encoding the ATM cell stream for transmission of data via a wireline link, receiving and decoding encoded wireless data received via wireless link and trans...  
WO1999004521A3
A method of transmitting information arranged in packets from one location to a second location via a wirelss/satellite network, comprising: (a) examining each packet to determine whether its size is equal to a minimum (STEP 11A1) and (S...  
WO/1999/007172A1
The invention concerns a network enabling communications at different rates, with signals transmitted by successive frames each divided into elementary time intervals usable for different communications, A frequency band is allocated to ...  
WO/1999/004508A1
An apparatus for providing bandwith on demand service in a wireless communication system having at least one user station, including a frequency divider (370 and 380) for dividing a selected bandwith into a plurality of frequency subdivi...  
WO/1999/004515A1
A method and apparatus for providing frame acquisition and synchronization for ATM transmissions in terrestrial wireless and satellite systems. During acquisition (1020), the transmitter (15) fills the entire payload of a frame with a pa...  
WO/1999/004338A1
A method for the adaptive control of a forward error correction code for transmission between a terrestrial cell/packet switch at a first terminal and a satellite/wireless network connecting to a second terminal, including the steps of: ...  
WO/1999/004521A2
A method of transmitting information arranged in packets from one location to a second location via a wirelss/satellite network, comprising: (a) examining each packet to determine whether its size is equal to a minimum (STEP 11A1) and (S...  
WO/1999/004509A1
A local area network for connection between a terrestrial cell/packet based network and a time division based point-to-multipoint network comprising a switch (10), an interface (710) including a time stamp processing unit (701) and a fra...  
WO/1999/004340A1
A frame format for a communication signal containing a bit stream including ATM formatted data, the bit stream being organized into frames (200) according to the frame format. The frame format includes a frame header (230), a data payloa...  
WO/1999/004522A1
An apparatus for compressing the header of ATM cells in order to provide greater bandwidth includes means for discriminating cells/packets (1310), means for detecting header (1320), means for compressing header (1330), means for combinin...  
WO/1999/004339A2
An apparatus (10) for receiving an ATM cell stream sequence via a wireline link, encoding the ATM cell stream for transmission of data via a wireline link, receiving and decoding encoded wireless data received via wireless link and trans...  
WO/1998/059436A1
The invention relates to a method and a device for radiotransmission of user data arranged in data words of a given length in time multiplex frames with active time slots, in which data is transmitted and inactive time slots, in which no...  
WO/1998/059437A1
The invention relates to a radio interface for a small wireless installation in the 2.4 GHz ISM band. The invention provides a transmission system comprising a fixed station (1) and at least one mobile station (2, 3), wherein the fixed s...  
WO/1998/059439A1
The invention relates to a method and a device for digital data radiotransmission between a fixed station (1) and at least one mobile station (2, 3) at one or several carrier frequencies (F1, F2 ...), wherein the data is transmitted in s...  
WO/1998/059438A1
The invention relates to a mobile radiotelephone for radiotransmission in time multiplex frames with alternating active time slots (Z1) in which data is transmitted and inactive time slots (Z2) in which no data is transmitted. The durati...  
WO1998037706A3  
WO/1998/047236A1
A method and system are disclosed for enabling point-to-point and multicast communication in a multiple access network using three types of communication channels, namely one or more upstream payload channels (f2), one or more upstream c...  
WO/1998/044656A1
A time slot sharing and frequency sharing mobile communication system, wherein FDMA/TDMA signals, CDMA signals, or TS-CDMA signals share the same time slot, and the signals in one time slot share a frequency. The system includes a divers...  
WO/1998/044688A1
The invention concerns a method for transmitting data derived from a plurality of sources (22�i?), to a plurality of receivers (24), via a single transmitting centre (21), using at least two separate transmission media (23�i?), said ...  
WO1998024258A3  
WO/1998/037706A2
The present invention encompasses a method and apparatus for efficiently communicating complex resource allocations from a central access point or base unit (14) to a mobile unit (10) requesting service. The base unit (14) allocates thes...  
WO/1998/032236A1
The invention relates to a method for a duplex telecommunication connection in radio connections based on a frame-structured interactive communication and a radio system where the frame-structured interactive communication is performed i...  
WO1998017077A3  
WO/1998/024258A2
A method and system of adaptive channel allocation in a multi-carrier, multi-slot system (220) is provided. In the method and system a subset of M channels is chosen from a larger set of N channels available for communications on a link ...  
WO/1998/017077A2
The invention relates to a radio system and a channel allocation method in a radio system comprising at least one base station (300) communicating with terminals (308 to 314) within its coverage area (304), and in which method air interf...  
WO/1998/004055A1
A short-range wireless radio communications system is provided that can carry data, voice, or data and voice traffic simultaneously. The band is divided into a plurality of channels or hops, and a burst composed of either voice informati...  
WO/1997/049208A1
An improvement in a data communication link between a server site (160) and a client site (162). The server site transfers data packets to the client site, each data packet causing an acknowledgment packet to be sent from the client site...  
WO/1997/037455A1
A method for assigning communication resources includes assigning communication resources (216, 218, 220) in the nature of bandwidth according to various selection schemes based upon the type of communication service being provided, and ...  
WO/1997/033385A1
To avoid complex synchronization for locally concentrated, asynchronous, wireless telecommunications systems, a free, not yet occupied FDMA frequency is occupied with priority in each telecommunications system for a first telecommunicati...  
WO/1997/022189A1
A satellite direct audio broadcast system includes a plurality of fixed-rate, uniform, frequency division multiple access ("FDMA") uplinks (21) and a time division multiplexed ("TDM") downlink (27). Source audio channels may be divided a...  
WO1997006618A3  
WO/1997/012464A1
A method and apparatus for single signal, multiple channel digital information transfer through pulses with time slot allocation. The apparatus consists of one or more transmitting devices (1) and one or more receiving devices (16). Mult...  
WO/1997/012466A1
A method and apparatus for multiple frequency, multiple channel digital information transfer through time slot allocation. The apparatus consists of one or more transmitting devices (1, 4) and one or more receiving devices (16). Multiple...  
WO/1997/012465A1
A method and apparatus for single signal, multiple channel digital information transfer through pulses with time slot allocation. The apparatus consists of one or more transmitting devices (1) and one or more receiving devices (16). Mult...  
WO/1997/006618A2
A filter fast Fourier transmultiplexer (216) divides a multi-channel communication signal into single channel communication signals through a cascade of filters (304, 314, 348, 354, 360, 366, 404-418) and mixers (604-610). The output sam...  
WO/1997/002674A1
The invention relates to the formation of a wide-band data transfer link (WB) as an extension to a data transfer system, which comprises narrow frequency bands (f2) for the organization of narrow-band data transfer calls using one freque...  
WO/1997/002673A1
A multi-channel modulator for the transmission of telephony signals within a broadband communication system. A filter accepts digitized data streams of telephony information in the form of I and Q signal components, and filters them to p...  
WO/1996/036135A1
A message system (500) for transmitting a message to a subscriber unit (312). The messaging system (500) includes a plurality of geographically distributed messaging transmitters (302-310), each transmitter designed to transmit in a firs...  
WO/1996/034349A1
An airdisk (80) performs a TDMA/FDMA (Time Division Multiple Access/Frequency Division Multiple Access) wireless broadcast, divided into periodically-repeated time-slotted data items, analogous to sectors on a rotating disk, over multipl...  
WO/1996/021289A1
In a TDM/TDMA portable radio communications system (5), a portable handset (201) is compatible for operation in FDD mode and TDD mode. In the FDD mode, different frequencies are used to separate a downlink transmission to a portable (201...  
WO1996007278A3  
WO/1996/013917A1
A technique for transmitting wideband signals such as video signals over a communication system such as a cellular or Personal Communication System (PCS) which only has narrowband channels. The video signal is first digitalized and compr...  
WO/1996/007278A2
In for instance a radio based access network type DECT are powerful and simply built up network components, for instance repeaters, an integral part. The device is arranged to make possible a signalling which makes digital decoding and a...  
WO/1995/033313A1
This invention relates to a method for improving the audibility of a broadcast control channel of a base station (BTS1 to BTS3) in a radio system in which transceiver units have been divided on the TDMA/FDMA principle into channels, the ...  

Matches 151 - 200 out of 800