Patents
Patents for H04J 3 - Time-division multiplex systems (63,408)
03/1999
03/17/1999EP0902600A2 Method for establishing logical connections in a synchronous digital data communication network , network element and management system
03/17/1999EP0902599A1 Short cell multiplexer
03/17/1999EP0902561A2 Band control circuit
03/17/1999EP0902555A1 Indoor communication system and synchronisation for a receiver
03/17/1999EP0901728A1 Method and apparatus for integration telephone and broadband netwroks
03/17/1999EP0901723A2 Method for structuring of digital data which can be transferred in both directions on a passive optical network (pon) in a pon tdma system
03/17/1999EP0830750B1 Apparatus and method of transmitting and receiving information in a wireless telecommunications system
03/17/1999CN1211367A Transmission system with flexible frame structure
03/17/1999CN1211128A Short cell multiplexer
03/17/1999CN1211113A Method and device for compensating frequency and phase fluctuation
03/17/1999CN1211112A TDMA voice information reading apparatus
03/16/1999US5883929 Synchronization method, and associated circuitry, for synchronizing a receiver with a transmitter
03/16/1999US5883901 Communications system including synchronization information for timing upstream transmission of data and ability to vary slot duration
03/16/1999US5883900 Telecommunications transmission
03/16/1999US5883898 Apparatus and method for mapping E1 signals into a digital cross-connect matrix space
03/16/1999US5883897 Method and apparatus for providing synchronization during transcoder switching in a communication system
03/16/1999US5883533 Clock signal generating device having a redundant configuration
03/16/1999CA2078040C Parallel code transmission method and apparatus of the same
03/16/1999CA2076844C 1:n ring-type signal protection apparatus
03/16/1999CA2065471C System for squelching communications circuits terminating in failed ring nodes
03/12/1999CA2244289A1 Method of establishing logical connections in a synchronous digital communications network, as well as network elements and management system
03/12/1999CA2244287A1 Method for transmitting data packets and network element for carrying out the method
03/11/1999WO1999012362A1 Method for performing a countdown function during a mobile-originated transfer for a packet radio system
03/11/1999WO1999012283A1 A method for demodulating information in a communication system that supports multiple modulation schemes
03/11/1999WO1998051033A3 Method for correcting synchronization error and radio system
03/10/1999EP0901306A2 Data transmission in an sdh network
03/10/1999EP0901276A2 Data transmission method for embedded data, data transmitting and reproducing apparatures and information recording medium therefor
03/10/1999EP0901250A1 Data multiplexing method, data multiplexer using the multiplexing method, multiple data repeater, multiple data decoding method, multiple data decoding device using the decoding method, and recording medium on which the methods are recorded
03/10/1999EP0900486A1 Tdma messaging service microcell
03/10/1999CN1210641A Virtual time loop
03/10/1999CN1210640A Cell aligners
03/10/1999CN1210423A Circuits and systems for generating and communicating advanced television signals
03/10/1999CN1210405A Mobilt communication system
03/09/1999US5881374 Circuitry and method for detecting frequency deviation caused by aging of an oscillator
03/09/1999US5881113 Redundancy clock supply module for exchange system
03/04/1999WO1999011096A2 Modular digital telephone system and method including a universal telephony shelf
03/04/1999WO1999011066A1 Information transmitting method and television broadcast receiver
03/04/1999WO1999011042A1 Wireless network
03/04/1999WO1999011017A1 Timing synchronization and switchover in a network switch
03/04/1999WO1999011004A1 Method and apparatus for adapting a time division duplex timing device for propagation delay
03/04/1999WO1999010993A2 Adaptive radio system
03/04/1999WO1999010991A2 Radio communication system
03/04/1999WO1998056136A3 Method for providing time synchronization in a network
03/04/1999WO1998056135A3 Method for providing time synchronization in a network
03/04/1999DE19737945A1 Data transmission method for automobile tire pressure control system
03/04/1999DE19734935A1 Verfahren, Mobilstation und Basisstation zur paketorientierten Übertragung von Informationen The method, mobile station and base station to the packet-oriented transmission of information
03/04/1999CA2302520A1 Timing synchronization and switchover in a network switch
03/04/1999CA2300895A1 Radio communication system
03/03/1999EP0899983A2 Bit sliced digital cross connect switching system controlled by port units
03/03/1999EP0899920A2 Radio communication system, transmitting apparatus, radio communication control apparatus, receiving apparatus, and radio communication method
03/03/1999EP0899905A2 Synchronizing a central timing unit to an external link via a switching network
03/03/1999EP0899904A2 Providing timing to an external system
03/03/1999EP0899903A2 Switching network providing multiple timing paths for port circuits
03/03/1999EP0899902A2 Method for transmission of measurement information from connected components to a central station in a point to multipoint communication system
03/03/1999EP0673578B1 Apparatus and method for use in a digital cable headend for cable television delivery system
03/03/1999CN1209923A Depacketiser and frame aligner including same
03/03/1999CN1209717A ATM exchange apparatus and method for providing speech calling service
03/03/1999CN1209695A Time-division multiplexing method and arrangement for central station and network terminal of communication network
03/02/1999US5878096 Digital filter having phase-adjustment ability
03/02/1999US5878095 Hierarchical synchronization method
03/02/1999US5878044 Data transfer method and apparatus
03/02/1999US5878042 Method for the transmission of signals in time division multiplex channel form via an ATM transmission device
03/02/1999US5878039 Bus rate adaptation and time slot assignment circuit for a sonet multiplex system
03/02/1999US5878034 Spacecraft TDMA communications system with synchronization by spread spectrum overlay channel
03/02/1999CA2246149A1 Method and device of superimposing and additional information signal on a video signal and detecting said additional information from said video signal
02/1999
02/28/1999CA2243303A1 Bit sliced digital cross connect switching system
02/28/1999CA2243281A1 Switching network providing multiple timing paths for port circuits
02/25/1999WO1999009775A2 Information transmission in a telecommunications system
02/25/1999WO1999009719A1 Remote vehicle data interface tag system
02/25/1999WO1999009691A1 Adaptive media control
02/25/1999WO1999009688A1 Method and apparatus for establishing a through path for a communication signal
02/25/1999WO1999009687A1 System and apparatus for timing signal generation and control
02/25/1999WO1999009686A2 A teletransmission network, network elements and a method of identifying the synchronization
02/25/1999WO1999009669A1 Method and device for producing a carrier frequency sequence
02/25/1999CA2301217A1 Method and apparatus for establishing a through path for a communication signal
02/25/1999CA2300068A1 Method and device for generating a carrier frequency
02/25/1999CA2297951A1 Remote vehicle data interface tag system
02/24/1999EP0898392A1 Method for common marking and identification of a PCM link and time slot by two nodes and corresponding PCM link and time slot
02/24/1999EP0858695A4 Apparatus and method for digital data transmission
02/24/1999EP0654202A4 A method and apparatus of dynamically adjusting a maximum number of users on a physical channel.
02/24/1999CN1209237A High-penetration transmission method for a radiocommunication system
02/23/1999US5875229 System and device for, and method of, detecting, characterizing, and mitigating deterministic distortion in a communications network
02/23/1999US5875217 Delay adjustment circuit in a performance monitoring and test system
02/23/1999US5875209 Digital radio system including repeater equipment, end equipment and receiver
02/23/1999US5875208 Delay compensation in a discrete multitone spread spectrum communications system
02/23/1999US5875193 Digital trunk for in-band line signal
02/23/1999US5875191 Apparatus and method for mapping telecommunications signals onto a subscriber bus
02/23/1999US5875187 TDMA messaging service microcell
02/23/1999US5875181 For signal processing for efficient multi-user satellite based communications
02/23/1999US5875179 Method and apparatus for synchronized communication over wireless backbone architecture
02/23/1999US5875177 Path test system for ATM switch
02/23/1999US5875172 Automatic transmission network restoring system
02/23/1999US5875062 Method of communicating between stations
02/23/1999US5875046 Optical repeater and optical transmitter
02/23/1999CA2166139C Transmission signal processing circuit which can determine an optimum stuff threshold value corresponding to a sort of a tributary unit of an input signal
02/23/1999CA2162068C Digital data concentrator
02/23/1999CA2127597C Variable rate communication method and a variable rate communication system
02/23/1999CA2087048C Derivation of vt group clock from sonet sts-1 payload clock and vt group bus definition
02/18/1999WO1999008462A1 Method, mobile station and base station for packet oriented information transmission
02/18/1999WO1999008421A2 Wireless network