Patents
Patents for H04J 3 - Time-division multiplex systems (63,408)
12/2002
12/03/2002US6490297 System and method for automatic signaling channel identification
12/03/2002US6490294 Apparatus and method for interconnecting isochronous systems over packet-switched networks
12/03/2002US6490261 Overlapping slot transmission using phased arrays
12/03/2002US6490252 System and method for prevention of cell loss due to quality of service contracts in an ATM network
12/03/2002US6490245 Method and apparatus for recovering from a signalling failure in a switched connection data transmission network
12/03/2002US6490243 Information data multiplex transmission system, its multiplexer and demultiplexer and error correction encoder and decoder
12/03/2002US6489852 Slew controlled frame aligner for a phase locked loop
12/03/2002US6489838 Apparatus and method for equalizing received network signals using a single zero high-pass filter having selectable impedance
11/2002
11/28/2002WO2002096101A1 Information transfer apparatus and method, information processing apparatus and method, and information processing system
11/28/2002WO2002095999A2 Method and apparatus for frame-based protocol processing
11/28/2002WO2002095998A1 Multi-stage sonet overhead processing
11/28/2002WO2002095958A2 Compression methods for packetized sonet/sdh payloads
11/28/2002US20020178292 Distributed synchronization mechanism for shared communications media based networks
11/28/2002US20020178256 System and method for introducing redundancy mechanisms into a communication system
11/28/2002US20020177914 Audio distribution and production system
11/28/2002US20020177459 System clock synchronisation using phase-locked loop
11/28/2002US20020177457 Radio communication system and frame synchronizing method between base stations
11/28/2002US20020177412 Radio communication apparatus and radio communication method
11/28/2002US20020176526 Data communications bit stream combiner/decombiner
11/28/2002US20020176514 High quality power ramping in a communications transmitter
11/28/2002US20020176450 System and methods for selectively transmitting ethernet traffic over SONET/SDH optical network
11/28/2002US20020176446 Synchronization method and apparatus
11/28/2002US20020176432 Hitless protection switching
11/28/2002US20020176422 Device for reassembling cell data device for circuit emulation service and method of ATM synchronization control
11/28/2002US20020176410 Time-slot interchange switches having automatic frame alignment measurement and programming capability
11/28/2002US20020176389 Method and apparatus for mapping Fast Ethernet data interfaces into a single VC-4 Virtual Container of a STM-1/OC-3 payload transmitted in a radio-link system
11/28/2002US20020176364 Interference detection method and interference avoidance system for wireless communication links
11/28/2002US20020176357 Switch having flow control management
11/28/2002US20020176356 Hitless protection switching
11/28/2002US20020175721 Frame synchronism detection circuit
11/28/2002US20020175704 Double data rate flip-flop
11/27/2002EP1261176A1 Voice transmission over Bluetooth
11/27/2002EP1261157A2 Hitless protection switching
11/27/2002EP1261149A1 Mobile radio communicationssystem with reference timing source
11/27/2002EP1261140A2 Interference detection method and interference avoidance system for wireless communication links
11/27/2002EP1260063A2 Automated router port extension
11/27/2002EP1260049A2 A modulation scheme for fdd/tdd transceivers
11/27/2002EP1260046A2 A communication system having bad frame indicator means for resynchronization purposes
11/27/2002EP1260045A1 A method of chip interleaving in direct sequence spread spectrum communications
11/27/2002EP1260037A1 Method, mobile radiotelephone system, and station for determining a timing advance for a connection between two stations
11/27/2002EP1151609B1 Module scheduling with a time interval and ending time
11/27/2002EP1116379B1 Application data table for a multiservice digital transmission system
11/27/2002CN1382329A Method for synchronizing base stations in mobile communication system
11/27/2002CN1381964A Fixed user unit for telecommunication
11/27/2002CN1381956A Changable rate vocoder
11/27/2002CN1095302C Base station with time-aligned mobile transmitting moments according to distance to base station
11/27/2002CN1095298C Connection method of CDMA of honeycomb communication system
11/27/2002CN1095261C 信号处理单元 The signal processing unit
11/27/2002CN1095109C Method and system for automatic compensation of line delay in clock distribution system
11/26/2002US6487686 Error correction method and transmission apparatus
11/26/2002US6487603 Method and apparatus for real time communication over switched networks
11/26/2002US6487405 Communication system with multicarrier telephony transport for controlling a plurality of service units
11/26/2002US6487262 Synchronization and downconversion in TDM/TDMA systems
11/26/2002US6487235 Delay compensation
11/26/2002US6487223 SDH transmission apparatus with flexible system configuration
11/26/2002US6487222 Quarter-rate 2B1Q ISDN architecture with embedded differential delay compensation for extending range of DDS communications
11/26/2002US6487220 Content-based multiplexer device and multiplexing method
11/26/2002US6487219 Multi-band receiver having multi-slot capability
11/26/2002CA2230294C Apparatus and method for digital data transmission
11/26/2002CA2164867C Added bit signalling in a telecommunications system
11/21/2002WO2002093951A1 Dynamic channel quality measurement procedure for adaptive modulation and coding techniques
11/21/2002WO2002093841A1 Method and apparatus for egress channel architecture that supports protection within sonet/sdh based networks
11/21/2002WO2002093803A1 Restoration protection in communication networks
11/21/2002WO2002093802A1 Procedures for merging the mediation device protocol with a network layer protocol
11/21/2002WO2002093796A1 Optical communication network
11/21/2002WO2002093787A1 Physical channel configuration signaling procedures
11/21/2002WO2002093785A1 Channel assignment in hybrid tdma/cdma communication system
11/21/2002WO2002093749A2 Method for generating an internal clock pulse in an electric circuit and a corresponding electric circuit comprising a central clock-pulse generator
11/21/2002WO2002073848B1 Frame synchronization method and system
11/21/2002WO2002067614A3 Method for establishing a priority call in a fixed wireless access communication system
11/21/2002WO2002067613A3 Apparatus for reallocating communication resources to establish a priority call in a fixed wireless access communication system
11/21/2002WO2002058409A3 Apparatus and method for creating signal and channel profiles at a receiving station
11/21/2002US20020174368 Circuits for scrambling and descrambling packets and methods of doing the same
11/21/2002US20020174245 Receiving apparatus and flow control method therefor and transmitting apparatus and flow control method therefor
11/21/2002US20020172310 Jitter attenuator fifo overflow-underflow protection using digital-phase locked loop's bandwidth adaptation
11/21/2002US20020172309 Universal clock reference
11/21/2002US20020172229 Method and apparatus for transporting a synchronous or plesiochronous signal over a packet network
11/21/2002US20020172227 Method and apparatus for frame-based protocol processing
11/21/2002US20020172226 Method and apparatus for calibrating an IEEE-1394 cycle master
11/21/2002US20020172225 Clock signal decoupling for synchronous operation
11/21/2002US20020172217 Multiple mode data communication system and method and forward and/or reverse link control channel structure
11/21/2002US20020172216 Control system using a mini slot signal in a passive optical network
11/21/2002US20020172215 Fixed rate data slot scheduling
11/21/2002US20020172200 Method and system for integrating packet type information with synchronization symbols
11/21/2002US20020172187 Method for data packet acquisition using split preamble
11/21/2002US20020172185 Radio communications terminal
11/21/2002US20020172182 Method and device for processing a digital data signal in a CDMA radio transmitter
11/21/2002US20020172156 Adaptive control of multiplexed input buffer channels
11/21/2002US20020172154 Signal processing apparatus and signal processing method
11/21/2002US20020172150 Transmission unit and failure recovery method
11/21/2002US20020171895 Automatic ranging in a passive optical network
11/21/2002US20020171501 Digital signal encoding apparatus and method, digital signal decoding apparatus and method, and digital signal transmission system
11/21/2002DE10123786A1 Anordnung zum zeitrichtigen Kombinieren zweier Datenströme Arrangement for time-accurate combining two data streams
11/21/2002CA2756677A1 Physical channel configuration signaling procedures
11/21/2002CA2447246A1 Channel assignment in hybrid tdma/cdma communication system
11/21/2002CA2446441A1 Restoration protection in communication networks
11/20/2002EP1259065A2 Device for correct combination of two data streams
11/20/2002EP1259012A2 Receiving apparatus and flow control method therefor and transmitting apparatus and flow control method therefor
11/20/2002EP1258093A2 Method for transmitting data in a radio access network
11/20/2002EP1258087A2 Method for optimizing the random access procedures in the cdma cellular networks