Patents
Patents for H04J 7 - Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels (369)
07/2007
07/05/2007WO2007074297A1 Optical transmission between a central terminal and a plurality of client terminals via an optical network
05/2007
05/30/2007EP1303960B1 Data transmission using pulse width modulation
03/2007
03/14/2007EP1763165A1 Method for operating a passive optical network, optical line termination and transmission frame
02/2007
02/07/2007CN1299453C Correlator for carrying out low current consumption
01/2007
01/25/2007WO2007011467A1 Off-channel beacons in a wireless network
01/04/2007WO2007002159A2 Method and apparatus for telecommunications equipment transfer
12/2006
12/28/2006WO2005091861A3 Implementing location awareness in wlan devices
12/26/2006US7154871 Transmitting and receiving device for a multipoint-to-point network
12/05/2006US7145991 Superposition of data over voice
11/2006
11/23/2006US20060264185 Communications method, apparatus and signal
10/2006
10/12/2006WO2006106260A1 Optical transmission between a first unit and a plurality of second units interconnected by means of a passive optical access network
10/04/2006EP1303958B1 Data transmission using pulse width modulation
09/2006
09/28/2006WO2006100683A2 Communication system and method
08/2006
08/22/2006US7095788 Circuit for facilitating simultaneous multi-directional transmission of multiple signals between multiple circuits using a single transmission line
06/2006
06/15/2006US20060126494 Method and system for scheduled streaming of best effort data
05/2006
05/24/2006CN1257633C Modulation technology for transmission of multi data-rate signals by using band-limited channel
05/16/2006US7046685 Scheduling control system and switch
05/10/2006CN1771682A Vertical roaming in wireless networks through improved wireless network cell boundary detection
05/04/2006DE102005045361A1 Synchronisation auf der Basis einer Zeit-Frequenz-Korrelation für einen kohärenten OFDM-Empfänger Synchronization based on a time-frequency correlation for coherent OFDM receiver a
05/03/2006CN1254931C Device and method for controlling channel access by access slot reserving in mobile communication system
04/2006
04/26/2006CN1254142C Measuring technology for radio switching in telecommunication terminal
02/2006
02/07/2006US6996213 Superposition of data over voice
01/2006
01/03/2006US6982949 Vertical roaming in wireless networks through improved wireless network cell boundary detection
11/2005
11/02/2005EP1590907A2 Improved vertical roaming in wireless networks through improved wireless network cell boundary detection
10/2005
10/26/2005EP1370099B1 GSM signal strength measurement in the compressed mode of a dual mode GSM/UTRA FDD terminal
09/2005
09/29/2005US20050213542 Vertical roaming in wireless networks through improved wireless network cell boundary detection
09/08/2005DE102004008427A1 Process to transmit digital and analog data between tool head and mobile tool e.g. lawn mower, floor polisher, soil rotivator, vacuum cleaner etc
07/2005
07/13/2005CN1638315A Rate matching method and apparatus for multiplexing channels having different transmission time intervals
06/2005
06/09/2005US20050123005 Rate matching method and apparatus for multiplexing channels having different transmission time intervals in a mobile communcation system
06/08/2005EP1538770A2 Rate matching method and apparatus for multiplexing channels having different transmission time intervals in a mobile communication system
05/2005
05/18/2005CN1202635C Circuit and method for simultaneously multi-way transmit multiple signal between multiple circuits
03/2005
03/31/2005US20050068885 Signal modulation
03/16/2005EP0876719B1 Method, transmitter and receiver for transmitting training signals in a tdma transmission system
12/2004
12/23/2004WO2004079968A9 Improved vertical roaming in wireless networks through improved wireless network cell boundary detection
10/2004
10/28/2004WO2004079968A3 Improved vertical roaming in wireless networks through improved wireless network cell boundary detection
09/2004
09/29/2004CN1169399C Method and mobile communication system for transmitting information via ratio interface
09/16/2004WO2004079968A2 Improved vertical roaming in wireless networks through improved wireless network cell boundary detection
09/02/2004US20040170122 Vertical roaming in wireless networks through improved wireless network cell boundary detection
08/2004
08/19/2004US20040160993 System and method for multiplexing digital and analog signals using a single electrical connector
08/04/2004CN1518846A Communications method, apparatus and signal
07/2004
07/29/2004US20040146161 Superposition of data over voice
06/2004
06/02/2004EP1066175B1 Data transfer method in a restraint system connected to a bus line
05/2004
05/19/2004EP1420532A1 System for multiplexing and transmission of asynchronous data signals
05/12/2004CN1149759C Method for transmitting additional data singnals and useful data singal by means of optical links
05/11/2004US6735221 Communication network system
04/2004
04/29/2004DE10248227A1 Signal transmission method between ignition control device and engine control device for automobile IC engine using combining of engine parameter signals before transmission
04/08/2004WO2003001840A9 Communications method, apparatus and signal
03/2004
03/17/2004EP1397935A1 Communications method, apparatus and signal
01/2004
01/21/2004CN1469678A Measuring technology for radio switching in telecommunication terminal
12/2003
12/11/2003US20030228890 Measurement technique for a radio access telecommunications terminal
12/10/2003EP1370099A2 GSM signal strength measurement in the compressed mode of a dual mode GSM/UTRA FDD terminal
07/2003
07/15/2003US6593867 High performance bus interface
03/2003
03/05/2003EP1004178B1 A teletransmission network, network elements therefor and a method of identifying the synchronization of a network element
01/2003
01/03/2003WO2003001840A1 Communications method, apparatus and signal
11/2002
11/26/2002US6486985 Method for transmitting an additional data signal and a useful data signal in an optical network
10/2002
10/03/2002US20020140592 High performance bus interface
08/2002
08/15/2002US20020109879 Co-channel modulation
08/07/2002CN1088962C Method for the common transmission of digital and analogue modulated radio broadcasting and/or television broadcasting signals
03/2002
03/27/2002CN1081866C Modulator demodulator unit
03/13/2002CN1339892A Circuit and method for simultaneously multi-way transmit multiple signal between multiple circuits
03/06/2002EP0972363B1 Method for transmitting additional data signals and a useful data signal by means of optical links
01/2002
01/08/2002US6337855 Method, transmitter and receiver for transmitting training signals in a TDMA transmission system
11/2001
11/14/2001CN1322430A Superposition of data over voice
11/08/2001US20010038618 Transmitting and receiving device for a multipoint-to-point network
09/2001
09/27/2001DE10013678A1 Transmitting and receiving device for multipoint-to-point network has unit for generating coded synchronization signal with lower level than communications signal and different code
09/26/2001EP1137219A2 Transceiver in a multipoint to point network
09/25/2001US6295494 Data transfer method in a restraint system connected to a bus line
08/2001
08/14/2001US6275509 Masked signal transceiver
07/2001
07/25/2001EP1118203A1 Superposition of data over voice
07/03/2001US6256302 Method for the common transmission of digital and analogue modulated radio broadcasting and/or television broadcasting signals
02/2001
02/27/2001US6195397 Signal transmission and reception device for new wiring system
01/2001
01/10/2001EP1066175A1 Data transfer method in a restraint system connected to a bus line
12/2000
12/27/2000CN1278396A Method and mobile communications system for transmitting information via ra radio interface
12/12/2000US6160792 Pulse amplitude modulated tone generator
09/2000
09/20/2000CN1267148A 信号传输系统 A signal transmission system
09/13/2000EP1035679A2 Signal transmission system
09/06/2000EP1033054A1 Method and mobile communications system for transmitting information via a radio interface
06/2000
06/27/2000US6081550 Method of testing clock paths and network elements for carrying out the method
06/27/2000US6081361 Sub-carrier multiplexing in broadband optical networks
05/2000
05/31/2000EP1004178A2 A teletransmission network, network elements therefor and a method of identifying the synchronization of a network element
05/03/2000CN1252194A Method for transmitting additional data signals and useful data signal by means of optical links
04/2000
04/06/2000WO2000019699A1 Superposition of data over voice
04/06/2000CA2345794A1 Superposition of data over voice
03/2000
03/29/2000EP0988709A2 Method and apparatus for embedding auxiliary data in a primary data signal
02/2000
02/22/2000CA2083725C Multiplexed coded modulation with unequal error protection
01/2000
01/25/2000CA2145707C Packet data receiver with sampled data output and background light cancellation
01/19/2000EP0972363A2 Method for transmitting additional data signals and a useful data signal by means of optical links
12/1999
12/28/1999CA2124621C Applications of simultaneous analog and digital communication
10/1999
10/07/1999WO1999050095A1 Data transfer method in a restraint system connected to a bus line
09/1999
09/30/1999DE19813962A1 Verfahren zur Datenübertragung in einem über eine Busleitung vernetzten Rückhaltesystem Method for transmitting data in a networked via a bus line restraint system
08/1999
08/17/1999CA2124622C Digital communications system with symbol multiplexers
08/10/1999US5937000 Method and apparatus for embedding auxiliary data in a primary data signal
06/1999
06/29/1999US5917627 A method of tributary channel identification
06/22/1999US5915003 Sketching unit for transmission of sketches and notes over normal telephone lines
05/1999
05/12/1999DE19747453C1 Verfahren und Mobil-Kommunikationssystem zur Übertragung von Informationen über eine Funkschnittstelle A method and mobile communication system for transmitting information over a radio interface
05/06/1999WO1999022544A1 Method and mobile communications system for transmitting information via a radio interface
04/1999
04/21/1999EP0910138A1 Sub-carrier multiplexing in broadband optical networks
04/15/1999WO1999009686A3 A teletransmission network, network elements and a method of identifying the synchronization
03/1999
03/24/1999EP0852087B1 Method for the common transmission of digital and analogue modulated radio broadcasting and/ or television broadcasting signals
03/09/1999US5881047 Simultaneous analog and digital communication with improved phase immunity
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