Patents
Patents for H04J 1 - Frequency-division multiplex systems (15,293)
02/2004
02/04/2004EP1013042B1 Prototype signal construction for multicarrier transmission
02/04/2004CN1473430A Mixed-media telecommunication call set-up
02/03/2004US6687261 Multiple channel system for a twisted pair telephone wire local loop system
02/03/2004CA2298918C Digital channelizer having efficient architecture for window presum using distributed arithmetic for providing window presum calculations in one clock cycle
01/2004
01/29/2004WO2003105381A3 Apparatus and an associated method for facilitating communications in a radio communication system that provides for data communications at multiple data rates
01/29/2004US20040018846 Apparatus, and associated method, for operating upon data at RLP logical layer of a communication station
01/28/2004EP1385293A2 Compensation for frequency offset in FDM receivers
01/22/2004WO2004008681A1 Time-frequency interleaved mc-cdma for quasi-synchronous systems
01/22/2004WO2004008291A2 Context aware transmission management method
01/22/2004WO2003075496A8 Authenticated change of media provided over a dsl connection
01/22/2004WO2002060114A3 Filter for multicarrier signals
01/22/2004US20040014447 Software parameterizable control blocks for use in physical layer processing
01/22/2004CA2488865A1 Context aware transmission management method
01/21/2004CN1469678A Measuring technology for radio switching in telecommunication terminal
01/21/2004CN1135802C Method and apparatus for united demodulation of adjacent channel signals in digital communication system
01/21/2004CN1135739C Method and apparatus for selecting source in source communication system with unbalanced loading capacity
01/20/2004CA2262349C Multi-carrier transmission system and method thereof
01/15/2004WO2004006508A1 Radio communication method, radio communication terminal, and radio lan system
01/15/2004WO2004006492A1 Power control of digital subscriber line
01/15/2004WO2004006479A1 Apparatus and method for transmitting and receiving side information about selective mapping in an orthogonal frequency division multiplexing communication system
01/15/2004US20040008616 Apparatus and method for transmitting and receiving side information about selective mapping in an orthogonal frequency division multiplexing communication system
01/15/2004CA2492000A1 Apparatus and method for transmitting and receiving side information about selective mapping in an orthogonal frequency division multiplexing communication system
01/14/2004EP1381196A1 Apparatus and method for transmitting and receiving side information about selective mapping in an orthogonal frequency division multiplexing communication system
01/14/2004EP1380115A1 Transmitting device limiting the out-of-band interferences
01/14/2004CN1134981C Terrestrial transmission method for digital signal
01/13/2004US6678271 High performance system and method having a local bus and a global bus
01/08/2004WO2004004180A1 Software fault tolerance between nodes
01/08/2004WO2002051075A3 Receiving unit for searching for at least one unused transmission channel in a communications device, and a method for use
01/08/2004US20040004975 Method and system for nesting of communications packets
01/08/2004US20040004966 Using virtual identifiers to route transmitted data through a network
01/07/2004CN1466831A Apparatus for providing a multiple internet connection service using a hybrid fiber coaxial cable network
01/01/2004US20040001431 Hybrid agent-Oriented object model to provide software fault tolerance between distributed processor nodes
12/2003
12/31/2003WO2004002050A1 A fault-tolerant broadcast router
12/31/2003WO2004002038A1 Mt-cdma using spreading codes with interference-free windows
12/31/2003WO2004002030A1 Plug and play reconfigurable usb interface for industrial fieldbus network access
12/31/2003WO2004001998A1 Ultra-wideband signal receiver using frequency sub-bands
12/31/2003CN1133287C Process and device for improving utilization rate of telecommunications channels in locally in locally concentrated, asynchronous wireless telecommunications system
12/30/2003US6671524 Base station apparatus and transmission branch selection method
12/25/2003US20030236937 Plug and play reconfigurable USB interface for industrial fieldbus network access
12/24/2003WO2003107571A1 Method and system for establishing electronic devices interaction rules
12/24/2003WO2003107566A1 Signal analyzer and method for displaying capacities of code channels
12/24/2003WO2002101962A3 Method and system for increased bandwidth efficiency in multiple input - multiple output channels
12/24/2003DE20312162U1 Funknetz-Controller zur Kanalumschaltung für Multimediaübertragungen und Multicast-Dienste Radio network controller for channel switching for multimedia transmission and multicast services
12/24/2003CN1132442C Radio architecture with dual frequency source delection
12/18/2003WO2003105478A1 System for return bandwidth minimization using selective sampling
12/18/2003WO2003105390A2 System and method for a direct conversion multi-carrier processor
12/18/2003WO2003105381A2 Apparatus and an associated method for facilitating communications in a radio communication system that provides for data communications at multiple data rates
12/18/2003WO2003090011A3 Software parameterizable control blocks for use in physical layer processing
12/18/2003US20030231602 Device interaction aggregator
12/18/2003CA2488740A1 System and method for a direct conversion multi-carrier processor
12/18/2003CA2485980A1 Apparatus and an associated method for facilitating communications in a radio communication system that provides for data communications at multiple data rates
12/17/2003EP1371165A2 Method and apparatus for data rate control in a communication system
12/17/2003EP1370879A2 System and method for fault isolation for dsl loop extenders
12/17/2003EP0853853B1 Multicarrier modulation
12/17/2003CN1131612C Method for broadcast transmitting time utilizing sound
12/16/2003US6665280 Method and apparatus providing multiple temporary block flow (TBF) mapping to upper layer when operating in GSM/EDGE radio access network (GERAN) A/Gb mode
12/16/2003US6665268 Load testing apparatus, computer readable recording medium for recording load test program, fault diagnosis apparatus, and computer readable recording medium for recording fault diagnosis program
12/16/2003CA2299100C Efficient digital channelizer system and method of operation thereof
12/16/2003CA2294140C A transmission apparatus capable of attenuating a peak power level prior to a signal output
12/11/2003WO2003103314A1 System and method for retransmission of data
12/11/2003WO2003017556A3 Remote module for a communications network
12/11/2003WO2002065675A3 Method and apparatus for allocating data streams given transmission time interval (tti) constraints
12/11/2003US20030228890 Measurement technique for a radio access telecommunications terminal
12/11/2003US20030227947 Method and system for communicating control information via out-of-band symbols
12/10/2003EP1370099A2 GSM signal strength measurement in the compressed mode of a dual mode GSM/UTRA FDD terminal
12/10/2003EP1368943A1 Apparatus and method for network-initiated real-time multi-party communications
12/10/2003EP1368926A1 Multiplexing method in a multi carrier transmit diversity system
12/10/2003EP1166553B1 Upconversion for intermediate frequency television signals taking account of detected analogue or digital signal type
12/10/2003EP0766889B1 An optical receiver, a tuner, and an optical network
12/10/2003CN1130869C Method for determing switching on frequency band and first and last end of realized said method
12/10/2003CN1130818C Method and device for intermodulation compensation in multi-channel amplifiers
12/09/2003US6662018 Analog power control system for a multi-carrier transmitter
12/09/2003US6661809 Methods and communications terminals for increasing capacity CDMA communications networks
12/09/2003CA2241098C Method and apparatus for separating digital data signals from analog voice signals transported over a common conductor
12/04/2003US20030226071 System and method for retransmission of data
12/04/2003US20030223460 System for return bandwidth minimization using selective sampling
12/03/2003EP1367759A1 Method and system for interference suppression in a TDMA and/or FDMA transmission
12/03/2003EP1367752A1 Mobile communication system, multicarrier cdma transmitter, and multicarrier cdma receiver
12/03/2003EP1195013B1 Communications system and method for multi-carrier orthogonal coding
12/03/2003CN1130009C Transmitter using predistortion and method of transmitting
12/02/2003US6658069 Automatic gain control circuit and control method therefor
12/02/2003US6657978 Optimized integrated high capacity digital satellite trunking network
12/02/2003CA2360380C Method and apparatus for the generation of analog telephone signals in digital subscriber line access systems
11/2003
11/27/2003WO2003021914A3 System and method for enabling communication between video-enabled and non-video-enabled communication devices
11/27/2003US20030219077 Multichannel receiver
11/27/2003US20030219036 Coding a masked data channel in a radio signal
11/26/2003CN1129284C Signal multiplexer
11/20/2003WO2003096641A1 Digital telephone system and protocol for joint voice and data exchange via pots line
11/20/2003US20030215024 Modulation apparatus, modulation method, modulated wave receiving apparatus, and modulation system
11/20/2003US20030214928 Method for paging a device in a wireless network
11/20/2003US20030214903 Method for hardware reduction in echo canceller and near-end crosstalk canceller
11/20/2003CA2524695A1 In packet-switched cellular networks
11/19/2003CN1128514C Mobile communication system and method of operating the same having compressed mode operation
11/18/2003US6650624 Cable modem apparatus and method
11/13/2003WO2003075496A3 Authenticated change of media provided over a dsl connection
11/13/2003WO2003071682A3 Flexible method and apparatus for encoding and decoding signals using a time division multiple frequency scheme
11/13/2003US20030211850 Candidate system search and soft handoff between frequencies in a multi-carrier mobile communication system
11/13/2003US20030210909 Optical communications networks utilizing frequency division multiplexing
11/13/2003US20030210708 Digital telephone system and protocol for joint voice and data exchange via pots line
11/13/2003US20030210162 Method and system for transition-controlled selective block inversion communications