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