Patents
Patents for H04J 1 - Frequency-division multiplex systems (15,293)
11/2002
11/21/2002US20020172200 Method and system for integrating packet type information with synchronization symbols
11/20/2002EP1259092A2 Mobile communication systems
11/20/2002EP1259007A2 Apparatus for modulating and demodulating multiple channel FSK in power line communication system
11/20/2002EP1258098A1 High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing
11/20/2002CN1094683C Method for avoiding interference in cable telephone system
11/20/2002CN1094676C AM data modulation apparatus
11/19/2002US6483814 Channel-adaptive radio modem
11/14/2002WO2002091660A1 Method and system for communicating a clock signal over an optical link
11/14/2002WO2001022628A9 Channel gain control for an optical communications system utilizing frequency division multiplexing
11/14/2002US20020167970 Method and system for conveying multiple calls on a single telephone line
11/14/2002US20020167945 Method and system for packet ordering based on packet type
11/14/2002US20020167902 Method and system for performing security via virtual addressing in a communications network
11/12/2002US6480528 Automatic gain control for improved decoding of multi-carrier signal
11/12/2002US6480475 Method and system for accomodating a wide range of user data rates in a multicarrier data transmission system
11/12/2002CA2118915C Process for reducing frequency interlacing during acoustic or optical signal transmission and/or recording
11/07/2002WO2002073867A3 Method and apparatus for data rate control in a communication system
11/07/2002US20020164008 Apparatus and method for network - initiated real - time multi - party communications
11/07/2002US20020163881 Communications bus with redundant signal paths and method for compensating for signal path errors in a communications bus
11/07/2002US20020163879 Multi-carrier communication with time division multiplexing and carrier-selective loading
10/2002
10/31/2002WO2001097487A3 Automatic assignment of addresses to nodes in a network
10/31/2002US20020161923 Method and system for reconfiguring a path in a communications network
10/31/2002US20020161887 Method and system for performing security via de-registration in a communications network
10/31/2002US20020160801 Radio communication apparatus and transmission power control method
10/31/2002US20020159552 Method and system for plesiosynchronous communications with null insertion and removal
10/31/2002US20020159551 Efficient multicarrier filter
10/31/2002US20020159468 Method and system for administrative ports in a routing device
10/31/2002US20020159458 Method and system for reserved addressing in a communications network
10/31/2002US20020159456 Method and system for multicasting in a routing device
10/31/2002US20020159453 Method and system for label table caching in a routing device
10/31/2002US20020159452 Method and system for virtual addressing in a communications network
10/31/2002US20020159451 Method and system for path building in a communications network
10/31/2002US20020159450 Method and system for asymmetric packet ordering between communications devices
10/31/2002US20020159446 Method and system for interswitch load balancing in a communications network
10/31/2002US20020159437 Method and system for network configuration discovery in a network manager
10/31/2002US20020159389 Method and system for connection preemption in a communications network
10/30/2002EP1253733A1 Radio transmitting apparatus and radio transmitting method
10/24/2002WO2002084935A1 Methods for determining the gains of different carriers, radio transmission units and modules for such units
10/24/2002US20020157054 Method and system for host handling of communications errors
10/24/2002US20020155861 Base station apparatus, communication terminal apparatus, and communication method
10/24/2002US20020154633 Communications architecture for storage-based devices
10/24/2002EP0888672A4 Apparatus and method for spectrum management in a multipoint communication system
10/23/2002EP1250784A1 Method for transmitting data to be transmitted using a subscriber modem
10/22/2002US6470030 Orthogonal frequency division multiplexing receiver system
10/22/2002US6469991 Method for overload control in a multiple access system for communication networks
10/16/2002CN1375175A Communication network with improved access protocol
10/16/2002CN1375144A Method and apparatus for supporting non-voice signal such as fascimile and compressed voice over a digital wireless link
10/16/2002CN1092883C Demodulator control system and receiver capable of quickly acquiring desired carrier wave
10/15/2002US6466540 Self-healing coupler for a serial raid device
10/09/2002EP1248428A2 Peak power smoothing for multicarrier systems
10/09/2002EP1119932A4 Stacked-carrier discrete multiple tone communication technology
10/09/2002CN1373976A System and method for performing soft hand off between frequency division duplex and time division duplex communication system
10/09/2002CN1373563A Mobie station receiver capable of using for single carrier and multiple carrier receiving operation
10/08/2002CA2285871C Amplifier with feedforward loops for rejecting non-linear distortion
10/03/2002WO2001026263A9 Through-timing of data transmitted across an optical communications system utilizing frequency division multiplexing
10/03/2002US20020143983 Credit management for data flow between two networks
10/03/2002US20020142739 Multi-channel peak power smoothing
10/03/2002US20020141437 Method for interference suppression for TDMA -and/or FDMA transmission
10/01/2002US6459690 Channel selector device for multiple access direct transmission systems between mobile stations
10/01/2002CA2267437C System for short range wireless data communication to inexpensive endpoints
09/2002
09/26/2002WO2002075486A2 Credit management for data flow between two networks
09/26/2002US20020136203 Enhanced fiber nodes with CMTS capability
09/26/2002US20020136176 Signal format in multi-carrier cdma transmission system
09/26/2002DE10113878A1 Electrical filter structure for digital demultiplexing of frequency division multiplex channel signal
09/26/2002DE10110683A1 Signal transmission between at least two transmitter units and at least one receiver unit, e.g. in vehicle network, involves modulating signals with different transmitter-specific frequencies
09/25/2002CN1371553A Communications system and method for multi-carrier orthogonal coding
09/24/2002US6456666 Signal encoding for transmission of multiple digital signals over single physical medium
09/24/2002US6456657 Frequency division multiplexed transmission of sub-band signals
09/24/2002US6456630 Method for data rate control for heterogenous or peer internetworking
09/24/2002US6456591 Fair bandwidth sharing for video traffic sources using distributed feedback control
09/19/2002WO2002073869A1 Multiplexing method in a multi carrier transmit diversity system
09/19/2002WO2002073867A2 Method and apparatus for data rate control in a communication system
09/19/2002WO2002054660B1 Method for cancelling interference during tdma transmission and/or fdma transmission
09/18/2002EP1241824A1 Multiplexing method in a multicarrier transmit diversity system
09/18/2002EP1241779A2 Receiver used in multi-carrier reception
09/18/2002EP0787412A4 Transmitting digital data using multiple subcarriers
09/17/2002US6452986 Detector tolerant of frequency misalignment
09/17/2002US6452945 Electrical add-drop multiplexing for optical communications networks utilizing frequency division multiplexing
09/17/2002US6452424 Method and apparatus for multiple channel signal processing
09/12/2002WO2002071706A1 Apparatus and method for network-initiated real-time multi-party communications
09/12/2002WO2002071635A1 Transmitting device limiting the out-of-band interferences
09/12/2002US20020127982 Mobile station receiver operable for both single and multi-carrier reception
09/12/2002US20020126641 Method and apparatus for data rate control in a communication system
09/12/2002CA2435677A1 Apparatus and method for network-initiated real-time multi-party communications
09/11/2002EP1238476A1 Method and apparatus for the communication of information with power control
09/11/2002EP1072138B1 Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems
09/11/2002CN1369180A Carrier scanning in cellular network
09/10/2002US6449307 Apparatus for measuring electrical characteristics of circuit
09/10/2002US6449281 Interface control of communication between a control processor and a digital signal processor
09/10/2002CA2245567C Synchronization and downconversion in tdm/tdma systems
09/05/2002US20020122400 Method and apparatus for allocating data streams given transmission time interval (TTI) constraints
09/04/2002EP1236369A1 Method and apparatus using a multi-carrier forward link in a wireless communication system
09/04/2002EP1236299A2 Dynamic selection of a medium access method in communication networks
09/04/2002CN1367624A Call accepted control method, communication system and basic station device
09/03/2002US6445685 Uplink demodulator scheme for a processing satellite
08/2002
08/29/2002WO2002067478A1 Mobile communication system, multicarrier cdma transmitter, and multicarrier cdma receiver
08/28/2002EP0745291B1 Data transmission method, transmitter, and receiver
08/28/2002CN1366741A Pager heving simultaneous multichannel scanning function and data transmitting/receiving method thereof
08/22/2002WO2002065734A1 Packet transmitter unit, packet receiver unit and packet transmission system
08/22/2002WO2002065675A2 Method and apparatus for allocating data streams given transmission time interval (tti) constraints
08/22/2002US20020115408 Satellite communication system with multiple variable data rate carrier