Patents
Patents for H04J 3 - Time-division multiplex systems (63,408)
06/1994
06/08/1994EP0600687A2 Dual connection in method in SDH ring network for data protection
06/08/1994EP0600193A2 Method for broadcasting digital data, especially towards mobile stations, with a high bit rate, with time-frequency interweaving and analogous synchronisation
06/08/1994EP0600075A1 Circuit for simultaneous recovery of bit clock and frame synchronization
06/08/1994EP0599874A1 Cell-multiplexing process for several receivers connected by a transmission line.
06/07/1994US5319764 Address detection circuit using a memory
06/07/1994US5319637 Synchronous control method in plurality of channel units and circuit using said method
06/07/1994US5319632 Transmission network in which a communication path is automatically restored in accordance with occurrence of a failure in a distributed way
06/07/1994US5319484 Photonic time-division multiplexer and demultiplexer
06/02/1994CA2110318A1 Dual connections
06/01/1994EP0599825A2 Digital transmission system for transmitting an additional signal such as a surround signal
06/01/1994EP0599824A2 Intensity-stereo encoding and decoding in a transmission system
06/01/1994EP0599665A2 Detecting circuit and detection method
06/01/1994EP0599311A2 Clock recovery circuit
06/01/1994EP0598888A1 Channel re-assignment method for time division multiple access (tdma) trunked systems
06/01/1994CN1024881C Pulse series signal radiancy control of receiver
05/1994
05/31/1994US5317690 Special sensor applied meteorological image process
05/31/1994US5317672 Variable bit rate speech encoder
05/31/1994US5317604 Isochronous interface method
05/31/1994US5317603 Isochronous interface apparatus
05/31/1994US5317572 Hybrid multiplex synchronizing method and apparatus therefor
05/31/1994US5317571 Method for determining the transmission time between remote and central terminal stations in a point-to-multipoint bidirectional transmission network
05/31/1994CA2031055C Programmable multiplexing techniques for mapping a capacity domain into a time domain within a frame
05/26/1994WO1994011966A1 A hierarchical synchronization method and a telecommunications system employing message-based synchronization
05/26/1994WO1994011965A1 A hierarchical synchronization method and a telecommunications system employing message-based synchronization
05/26/1994WO1994011964A1 Hierarchical synchronization method
05/26/1994WO1994011963A1 A hierarchical synchronization method and a telecommunications system employing message-based synchronization
05/26/1994WO1994011962A1 Network arrangement
05/26/1994DE4315420C1 Converting digital data streams with ATM cellular structure - using structure cell for temporary storage of structure data and test results in plesiochronous digital hierarchy frame
05/26/1994DE4315273C1 Stuffing control signal generating circuit for signal data rate modification - uses detected count difference between write address counter and read address counter for buffer memory
05/26/1994DE4239076A1 Mischungen aus Polymerisaten von monoethylenisch ungesättigten Dicarbonsäuren und Polymerisaten ethylenisch ungesättigter Monocarbonsäuren und/oder Polyaminocarbonsäuren und ihre Verwendung Mixtures of polymers of monoethylenically unsaturated dicarboxylic acids and polymers of ethylenically unsaturated monocarboxylic acids and / or polyaminocarboxylic acids and their use
05/25/1994EP0598485A2 Hierarchical path hunt for multirate connections
05/25/1994EP0598455A2 Transmission system for synchronous digital hierarchy
05/25/1994EP0598052A1 Method and apparatus for dynamic bandwidth allocation in a digital communication session
05/24/1994US5315704 Speech/voiceband data discriminator
05/24/1994US5315596 Digital multiplexer with logically allocatable channels and bit rates
05/24/1994US5315594 Inter-network transport element of sonet overhead
05/24/1994US5315584 System of data transmission by sharing in the time-frequency space with channel organization
05/24/1994CA2021348C Elastic store memory circuit
05/18/1994EP0597721A2 TDM/TDMA telecommunications systems
05/18/1994EP0597720A2 TDM/TDMA telecommunications systems
05/18/1994EP0597719A2 TDM/TDMS telecommunications systems
05/18/1994EP0597349A1 Method and arrangement for recovering plesiochrone signals transmitted in tributaries
05/18/1994EP0597085A1 Data communication terminal providing variable length message carry-on
05/18/1994EP0597084A1 Method and apparatus for maintaining synchronization in a simulcast system
05/18/1994EP0555267A4 Sonet signal generating apparatus and method
05/17/1994US5313502 Arrangement for imaging a useful signal from the frame of a first digital signal at a first bite rate into the frame of a second digital signal at a second bite rate
05/17/1994US5313500 Frame synchronization circuit comprising a series-to-parallel converter
05/17/1994US5313467 Integrated communication link having a dynamically allocatable bandwidth and protocol for transmission of allocation information over the link
05/17/1994US5313462 Synchronism establishing method and apparatus
05/17/1994US5313458 Traffic control system
05/17/1994US5313457 Code position modulation system and method for multiple user satellite communications
05/17/1994US5313456 Data link protecting system
05/11/1994WO1994010812A1 Arrangement for controlling a transmitter-receiver pair, in particular base stations and mobile units of a cordless telephone system
05/11/1994WO1994010809A1 Information transmission system
05/11/1994WO1994010775A1 A multiplex control packet for digital services
05/11/1994WO1994010768A1 Arrangement in mobile telecommunications systems for providing for synchronization of the transmitters of the base stations
05/11/1994EP0596652A1 Network for transmitting isochronous-source data with a frame structure
05/11/1994EP0596650A1 Apparatus & method for accommodating cable length delays using isochronous fifoing
05/11/1994EP0596624A2 Bandwidth allocation, transmission scheduling, and congestion avoidance in broadband asynchronous transfer mode networks
05/11/1994EP0596452A1 Local loopback of isochronous data in a switching mechanism
05/11/1994EP0595911A1 Basic rate interface.
05/11/1994EP0568659A4 Method of assigning a voice/data channel or a temporary control channel
05/11/1994CN1086647A Method and apparatus for coordinating clocks in a simulcast network
05/11/1994CA2148270A1 A multiplex control packet for digital services
05/11/1994CA2145998A1 Arrangement in mobile telecommunications systems for providing for synchronization of the transmitters of the base stations
05/10/1994US5311519 Multiplexer
05/10/1994US5311517 Highly-efficient time-division data multiplexing apparatus
05/10/1994US5311511 SONET DS-N desynchronizer
05/10/1994US5311505 Method and device for multiplexing
05/10/1994US5311501 Routing system for linear add-drop multiplexer
05/10/1994US5311456 Arrangement for finding a group of contiguous channels in a channel group
05/10/1994US5311170 Method and system for making bipolar switching to protection channel
05/10/1994CA2016638C Data communication bypass apparatus and method
05/04/1994EP0595780A1 A method and an arrangement for minimizing a phase difference between two datastreams prior to changeover
05/04/1994EP0594878A1 Passive optical telecommunication system
05/04/1994EP0594780A1 Modular, user programmable telecommunications system with distributed processing
05/04/1994CN2164161Y TASI multiplexing system
05/03/1994US5309474 Communication system
05/03/1994US5309441 Compact device for carrying out terminating processing of STS-N signal
05/03/1994US5309440 ISDN user-network interface system
05/03/1994US5309439 TDMA system with a virtual reference
05/03/1994US5309435 Multiring data transmission system
05/03/1994CA2041283C Antenna selection diversity reception system
05/03/1994CA2040671C Self-synchronizing serial transmission of signaling bits in a digital switch
05/03/1994CA2015237C Multiplex communications network pseudo-synchronisation method
04/1994
04/28/1994WO1994009577A1 Improvements relating to telecommunication transmission systems
04/27/1994EP0594402A2 Apparatus for and method of clock timing recovery in a receiver
04/27/1994EP0594356A2 Multirate, SONET-ready, switching arrangement
04/27/1994EP0594348A2 A TDM circuit-switching arrangement that handles frames of different sizes
04/27/1994EP0594325A2 Adaptive data rate packet communications system
04/27/1994EP0593812A1 Procedure for suppressing the drift between the expected information cell rate and the actual information cell rate
04/27/1994CN1086061A 数字控制信道 Digital control channel
04/26/1994US5307353 Fault recovery system of a ring network
04/26/1994US5307351 Data communication apparatus for adjusting frame length and method of operating same
04/26/1994US5307349 TDMA network and protocol for reader-transponder communications and method
04/26/1994US5307347 Method and apparatus for sharing a telecommunications channel among multiple users
04/26/1994US5307174 High efficiency facsimile transmission apparatus
04/26/1994CA2022798C Communication switching element and method for transmitting variable length cells
04/24/1994CA2103744A1 Adaptive data rate packet communications system
04/20/1994EP0593404A1 Multi-processor Viterbi decoder for digital cellular base stations using pipeline processing