Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 4 - Combined time-division and frequency-division multiplex systems
Patents for H04J 4 - Combined time-division and frequency-division multiplex systems (1,442)
08/2001
08/09/2001US20010012277 Satellite direct radio broadcast system
08/07/2001US6272340 Load shedding method to enhance uplink margin with combined FDMA/TDMA uplinks
07/2001
07/24/2001US6265999 High-speed serial-to-parallel and analog-to-digital conversion
07/10/2001US6259686 Multiple access method in a cellular radio communication network
06/2001
06/27/2001EP1111805A2 Frequency agile radio reception
06/26/2001US6252860 Method and system for improving the degree utilization of telecommunications channels in locally concentrated, asynchronous wireless telecommunications systems
06/19/2001US6249514 Satellite direct radio broadcast system
06/13/2001EP1106026A1 Multiple frequency allocation radio frequency device and method
06/06/2001EP0885494B1 Process and design for improving the utilization rate of telecommunications channels in locally concentrated, asynchronous wireless telecommunications systems
05/2001
05/29/2001US6240077 Dynamic wireless multiplexing — switching hub for providing two-way communications with subscriber units
05/24/2001US20010001617 Digital communication apparatus
05/23/2001CN1066301C 多用户频谱扩展通信系统 Multiuser spread spectrum communication system
05/08/2001US6229790 Channel switching control for a communication system
04/2001
04/17/2001US6219840 Method for assigning communication resources in a communication system
04/05/2001WO2001024470A1 Method for transmitting an offset modulated biorthogonal multicarrier signal (bfdm/om)
03/2001
03/07/2001CN1286881A Method and system of performing system channel planning for wireless local loop communication
02/2001
02/13/2001CA2196500C Channel assignment controlling system
01/2001
01/31/2001CN1282165A Carrier changer and changing method
01/30/2001US6181684 Air interface statistical multiplexing in communication systems
01/25/2001DE3645360C2 Digital multi-user radio telephone system
11/2000
11/23/2000DE19923043A1 Transmission method for analog bandpass signals provided in intermediate frequency system, involves sampling signals for conversion into digital format and combination into multiplex signal
11/08/2000CN1272981A Method and device for reserving resources one or more multiple access communication channels
10/2000
10/10/2000US6130897 Time division multiple access FDD/TDD dual mode radio and a time division multiple access TDD dual band system
10/05/2000WO2000059169A1 Fdma/tdma transceiver employing common signal processing
10/03/2000CA2137386C Time division multiple access mobile wireless telecommunication system
09/2000
09/27/2000EP1039659A2 Load shedding method to enhance uplink margin with combined FDMA/TDMA uplinks
09/27/2000CN1268262A Method and device for effective data radiotransmission
09/14/2000WO2000054434A1 Data transmission method and radio link system
09/13/2000EP1034675A1 Methods and systems of performing system channel planning for wireless local loop communication
08/2000
08/30/2000CN1265241A Method and mobile radiotelephone for digital data radiotransmission
08/30/2000CN1265240A Radio interface for small wireless installation in 2,4 GHz ISM band for industry, science and medicine
07/2000
07/25/2000US6094444 Point-to-points signal transmission system
07/25/2000US6094425 Self-adaptive method for the transmission of data, and implementation device
07/19/2000EP1020034A1 High-speed serial-to-parallel and analog-to-digital conversion
07/05/2000EP0824800A4 Apparatus for multi-rate simulcast communications
06/2000
06/08/2000WO2000033505A1 A receiver and method of receiving for an fdma/tdma radio system
06/02/2000WO2000031908A1 Apparatus and methods for unidirectional data communication
05/2000
05/31/2000DE19854252A1 Transmitting a frame synchronization word comprises occupying different half of bandwidth with signal during each half of frame synchronization time during which other half has no signal
05/24/2000EP1002272A1 Method and apparatus for adaptive control of forward error correction codes
05/17/2000EP1000521A1 Method for multiple access in a cellular radiocommunication network
05/16/2000US6064662 System and method for optimizing spectral efficiency using time-frequency-code slicing
05/09/2000US6061778 Digital signal processor for detecting out-of-sync and jitter from two clock signals and controlling the interpolation based on deviation and jitter amount
05/03/2000EP0996889A1 A frame format and frame assembling/disassembling method for the frame format
05/03/2000CN1252197A Transmitting and receiving methods and devices
04/2000
04/26/2000EP0995283A2 A method and apparatus for segmentation, reassembly and inverse multiplexing of packets and atm cells over satellite/wireless networks
04/26/2000EP0995277A1 Method and apparatus for minimizing delay variance via time divided transmissions
04/20/2000WO2000022755A1 Method for operating a mobile radio system and base station system
04/19/2000EP0993709A1 Multicarrier demux/demod (mcdd) wireless network architecture
04/12/2000EP0992130A1 Method and device for effective data radiotransmission
04/12/2000EP0992129A1 Method and device for radiotransmission
03/2000
03/15/2000EP0985275A1 Method and apparatus for reserving resources of one or more multiple access communication channels
03/14/2000US6038225 Communication system capable of switching between frames of differing configuration during communication, and a control method for the same
03/14/2000US6038221 Device at telecommunications systems using a pattern of time slots
03/02/2000WO2000011898A1 Multiple frequency allocation radio frequency device and method
02/2000
02/23/2000CN1245623A Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system
02/22/2000US6028886 Digital communication apparatus
02/09/2000EP0978962A1 Transmitting method, receiving method, transmitter, and receiver
02/01/2000US6020830 Telemetry system using broadband correlation techniques
01/2000
01/25/2000US6018528 System and method for optimizing spectral efficiency using time-frequency-code slicing
01/18/2000CA2206473C Compatible licensed and unlicensed band portable handset unit for tdma wireless communication system
01/11/2000US6014374 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
01/11/2000US6014366 Variable-bandwidth frequency division multiplex communication system
01/11/2000CA2145700C System and method for optimizing spectral efficiency using time-frequency-code slicing
12/1999
12/28/1999US6009313 Radio Communication device capable of setting a frequency channel with a small frequency step
12/28/1999US6009087 Mobile communication system using various multiple access methods
12/28/1999US6009084 Concentrating transmultiplexer for cable telephony
12/22/1999CN1239386A Method of transmitting datas and radio communicating system
12/21/1999US6006105 Multi-frequency multi-protocol wireless communication device
12/15/1999EP0809894A4 Portable handset for tdd/fdd wireless communication
11/1999
11/30/1999US5995147 Communication method, transmission apparatus, transmission method, receiving apparatus and receiving method
11/23/1999CA2047470C Method of operating a communications system, a communications system and a secondary station for use in the system
11/17/1999EP0956671A1 Satellite direct radio broadcast system
11/17/1999EP0956654A1 Radio system and methods for duplex operation
10/1999
10/27/1999CN1233382A Channel allocation method and radio system using a combination of TDMA and CDMA
10/12/1999CA2219283C An improved periodic wireless data broadcast
10/05/1999US5963557 High capacity reservation multiple access network with multiple shared unidirectional paths
09/1999
09/21/1999US5956642 Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system
09/16/1999DE19810813A1 Data transmission method for radio communication system
09/15/1999EP0941625A2 Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system
09/14/1999US5953348 Multiple channel terminal server communications network
08/1999
08/24/1999US5943340 Channel assignment controlling system
08/19/1999WO1999041866A1 Transmitting method, receiving method, transmitter, and receiver
08/18/1999EP0935901A2 Channel allocation method and radio system using a combination of tdma and cdma
06/1999
06/30/1999EP0925693A2 Method and apparatus for allocating spectral resources in a wireless communication system
06/30/1999EP0712556A4 Dynamic radio communications system
06/23/1999EP0924885A2 Protocols for the transmission of information and method for delivering time windows
06/23/1999CN1220569A Wireless communication system apparatus, and method to communicate using plurality of communication slots in time division multiple access technique
06/09/1999CN1219306A Method and apparatus for allocating spectral resources in a wireless communication system
06/02/1999EP0920144A2 Communication system for transmitting digital signals in a radio subscriber connection network
05/1999
05/27/1999WO1999026438A1 Methods and systems of performing system channel planning for wireless local loop communication
05/19/1999EP0916215A1 Method for transmitting on a plurality of transmission media, with dynamic data dispatching, and corresponding transmitter and terminal
05/12/1999EP0915575A1 Frequency-sharing mobile communication system equipped with diversity receiver incorporated with shared-wave canceler
05/12/1999EP0914727A1 Short-range radio communications system and method of use
05/12/1999EP0700616A4 A frequency agile radio
04/1999
04/28/1999EP0911633A1 A method of identifying agonists and antagonists for tumor necrosis related receptors TR1, TR3 and TR5
04/21/1999EP0910176A2 Method for establishment of the power level for uplink data transmission in a multiple access system for communications networks
04/21/1999CN1214820A Frequency-sharing mobile communication system equipped with diversity receiver incorporated with shared-wave canceler
04/20/1999US5896375 Short-range radio communications system and method of use
04/08/1999WO1999017452A1 High-speed serial-to-parallel and analog-to-digital conversion
04/08/1999WO1999004521A3 A method and apparatus for segmentation and reassembly of packets/cells over satellite/wireless networks
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