Patents
Patents for H04J 9 - Multiplex systems in which each channel is represented by a different type of modulation of the carrier (524)
08/2006
08/09/2006EP1687927A2 Apparatus, and associated method, for communicating communication data in a multiple-input, multiple-output communication system
08/01/2006US7085223 Communication device for receiving and transmitting OFDM signals in a wireless communication system
07/2006
07/27/2006WO2006039290A3 Spread frequency spectrum waveform generating circuit
07/18/2006US7079480 Enhancing security and efficiency of wireless communications through structural embedding
06/2006
06/14/2006CN1788444A Method and system for a data transmission in a communication system
06/13/2006US7059928 Light emitting element and method for manufacturing the same
06/01/2006US20060114811 Multilevel amplitude modulated signaling in fibre channel
05/2006
05/17/2006CN1256830C Apparatus and method for effective transmitting and receiving multipoint sending data
05/16/2006US7046618 Bridged ultra-wideband communication method and apparatus
05/09/2006US7043210 Adaptive coding and modulation
04/2006
04/27/2006WO2006044489A1 Methods and apparatus for adjusting band width allocation in a wireless communications system
04/27/2006CA2582396A1 Methods and apparatus for adjusting band width allocation in a wireless communications system
04/20/2006US20060083195 MIMO communication system using an adaptive transmission mode switching technique
04/06/2006US20060072450 Ofdm signal collision position detection apparatus and ofdm reception device
03/2006
03/29/2006CN1754340A Method for wlan exclusive downlink channel
03/28/2006US7020098 Predictive reservation of a communication link for a packet-based real-time media session
03/21/2006US7016297 Method and apparatus providing decentralized, goal-orientated adaptive learning in an adaptive orthogonal frequency division multiplex communication system
03/16/2006US20060056279 Shared medium communication system
03/16/2006US20060056278 Devices and methods of modulation and demodulation enabling the extension or replacement of a communications link, corresponding sender and receiver
03/09/2006US20060050623 Adaptive modulation for fixed wireless link in cable transmission system
02/2006
02/23/2006US20060039706 Method and device for optical data transmission
02/21/2006US7002898 Asymmetrical transport of data
02/16/2006WO2006016129A1 Method and apparatus for data communication within a physical link layer of a communications system
01/2006
01/18/2006CN1237746C Stacked-carrier discrete multiple tone communication technology
12/2005
12/13/2005US6975582 Dual mode satellite/cellular terminal
12/07/2005EP1602187A2 Method and system for a data transmission in a communication system
11/2005
11/10/2005WO2005107117A1 Dual mode communication systems and methods
11/08/2005US6963623 Multi-system correspondence receiver
10/2005
10/20/2005US20050232216 Dual mode communication systems and methods
09/2005
09/07/2005CN1666451A Method and device for optical data transmission
08/2005
08/18/2005US20050180310 Methods and systems for implementing a pseudo-noise signaling mechanism in wireless communication
06/2005
06/30/2005WO2005060140A2 Module to module signaling with jitter modulation
06/23/2005US20050135501 Module to module signaling with jitter modulation
06/02/2005US20050117678 Method for resynchronization of a mobile radio receiver in the event of a change over between two different modulation methods
03/2005
03/31/2005WO2004084450A3 Method and system for a data transmission in a communication system
03/31/2005DE10339886A1 Synchronization of mobile radio receiver method e.g. for switching between two different modulation methods, involves determining synchronization information from one modulation procedure of databurst
03/17/2005US20050058126 Fibre channel interface apparatus and methods
03/10/2005US20050053022 Encoding and merging multiple data streams of fibre channel network
03/09/2005CN1592148A Resynchronous method for mobile wireless receiver in converting situation between two different modulating method
03/03/2005US20050047324 Fibre channel interface unit
02/2005
02/23/2005EP1508212A1 Method and device for optical data transmission
01/2005
01/26/2005CN1572097A Mixed waveform configuration for wireless communications
12/2004
12/09/2004WO2004107690A1 Method for reducing channel estimation error in an ofdm system
12/02/2004US20040240376 Method for reducing channel estimation error in an OFDM system
11/2004
11/03/2004EP1210780B1 Method and system to synchronize mobile units to a base transceiver station
10/2004
10/19/2004US6807241 Method and apparatus for partial and course frequency offset estimation in a digital audio broadcasting (DAB) system
09/2004
09/30/2004WO2004084450A2 Method and system for a data transmission in a communication system
09/30/2004CA2519124A1 Method and system for a data transmission in a communication system
09/16/2004US20040179557 Channel structures, systems, and methods to support high speed communication channels
09/16/2004US20040179494 Method and system for a power control in a communication system
09/16/2004US20040179480 Method and system for estimating parameters of a link for data transmission in a communication system
09/16/2004US20040179469 Method and system for a data transmission in a communication system
09/09/2004DE10297029T5 Mischwellenformgestaltung für drahtlose Kommunikationen Mixed waveform design for wireless communications
08/2004
08/25/2004CN1164061C Amplitude-modulation multi-way broadcasting device
07/2004
07/28/2004CN1159865C Method and system to synchronize mobile units to base transceiver station
06/2004
06/17/2004US20040114629 Method and apparatus for processing custom time division multiplexed signals
06/01/2004US6744839 Clock regeneration circuit
05/2004
05/25/2004CA2210508C Method for the transmission of a low-rate supplementary channel in high-rate coherent optical transmission systems
05/18/2004US6738602 Integrable circuit for the frequency conditioning of radio transceiver, in particular a cordless telephone, operating in the UHF range
03/2004
03/30/2004US6714610 Method of transmitting clock signals, method of synchronizing clock generators or network elements, as well as a network element and a clock generator
03/23/2004US6711144 Multi-user communication of voice and data
12/2003
12/10/2003CN1130841C Integrated circuit forfrequency preprocessing in UHF range
12/04/2003WO2003101019A1 Method and device for optical data transmission
10/2003
10/16/2003WO2003005740A3 Burst configuration with single carrier and multicarrier sections
08/2003
08/06/2003CN1117457C Clock regeneration circuit
05/2003
05/13/2003US6563880 Method and system for simultaneously broadcasting and receiving digital and analog signals
01/2003
01/16/2003WO2003005740A2 Burst configuration with single carrier and multicarrier sections
01/16/2003US20030012302 Mixed waveform configuration for wireless communications
01/16/2003US20030012301 Method and apparatus for improved cellular telephone communications
11/2002
11/20/2002CN1094676C AM data modulation apparatus
09/2002
09/18/2002CN1370355A Method and system to synchronize mobile units to base transceiver station
09/10/2002US6449243 Method of transmitting data in a communications network and communications network
08/2002
08/22/2002US20020114048 Apparatus and method for attaching a data sub-channel to a digital payload
08/15/2002WO2002023759A3 A method and an apparatus for providing both voice and data services in a wireless communication system
06/2002
06/08/2002CA2327906A1 Apparatus and method for attaching a data sub-channel to a digital payload
06/05/2002EP1210780A1 Method and system to synchronize mobile units to a base transceiver station
05/2002
05/23/2002WO2001093463A3 A method for synchronizing a radio receiver to a received data bit stream
03/2002
03/26/2002CA2228240C Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals
03/21/2002WO2002023759A2 A method and an apparatus for providing both voice and data services in a wireless communication system
12/2001
12/06/2001WO2001093463A2 A method for synchronizing a radio receiver to a received data bit stream
10/2001
10/25/2001US20010033625 Multi-system correspondence receiver
08/2001
08/14/2001US6275509 Masked signal transceiver
05/2001
05/22/2001US6236691 Signal demodulation method and apparatus
04/2001
04/17/2001CA2217429C Techniques for simultaneous communications of analog frequency-modulated and digital modulated signals using postcanceling scheme
04/10/2001US6215815 Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals
03/2001
03/28/2001EP1087582A2 Coarse and fine frequency offset estimation in a digital audio broadcasting system
03/21/2001EP1084554A2 Procedure and device for transmitting information by radio
03/20/2001US6204735 Geometrically modulated waves
03/15/2001CA2317899A1 Method and apparatus for partial and course frequency offset estimation in a digital audio broadcasting (dab) system
03/08/2001WO2001017137A1 Method and system to synchronize mobile units to a base transceiver station
09/2000
09/20/2000CN1267148A 信号传输系统 A signal transmission system
09/13/2000EP1035679A2 Signal transmission system
08/2000
08/16/2000CN1263651A Integrated circuit for frequency conditioning in radio transceiver working in UHF range, especially wireless telephone
07/2000
07/25/2000US6094442 Optical path signal termination equipment
07/12/2000CN1260092A Clock regeneration circuit
07/11/2000US6088403 Signal extraction method and apparatus
06/2000
06/27/2000US6081550 Method of testing clock paths and network elements for carrying out the method
06/13/2000US6075813 Band insertion and precancellation technique for simultaneous communication of analog frequency modulated and digitally modulated signals
04/2000
04/12/2000EP0993134A2 Method for transmitting clock signals, method for synchronizing clock generators or network elements, network element and clock generator
04/06/2000DE19845767A1 Verfahren zum Übertragen von Taktsignalen, Verfahren zum Synchronisieren von Taktgeneratoren oder Netzelementen, Netzelement und Taktgenerator A method of transmitting clock signals, A method for synchronizing clock generators or network elements, and network element clock generator
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