Patents
Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402)
10/1995
10/03/1995US5455921 Redundant MIL-STD-1153B modem
10/03/1995US5455833 Process for the detecting of errors in the transmission of frequency-coded digital signals
10/03/1995US5455700 Regenerative communication channel extender
09/1995
09/28/1995WO1995026094A1 Pcs pocket phone/microcell communication over-air protocol
09/28/1995WO1995026084A1 Protection scheme for sdh add/drop multiplexer
09/28/1995WO1995026081A1 High performance modem using pilote symbols for equalization and frame synchronization
09/28/1995DE19509728A1 Error-correcting encoder using Galois field adder and multipliers
09/28/1995CA2186031A1 Pcs pocket phone/microcell communication over-air protocol
09/28/1995CA2185801A1 High performance modem using pilote symbols for equalization and frame synchronization
09/27/1995EP0674455A1 Multistation transmitting method and receiver therefor
09/27/1995EP0674413A2 Signal constellation time division multiplexing arrangement
09/27/1995CN1029902C Transmission system and receiver to be used in transmission system
09/26/1995US5453997 Decoder selection
09/26/1995US5453989 Subscriber digital transmission system
09/26/1995US5453737 Control and communications apparatus
09/21/1995WO1995025390A1 A method and apparatus for measuring digital radio interference
09/21/1995WO1995025386A1 Encoding/interleaving method and corresponding deinterleaving/ decoding method
09/21/1995CA2185587A1 Encoding/interleaving method and corresponding deinterleaving/ decoding method
09/20/1995EP0673175A2 Reduction of power consumption in a mobile station
09/20/1995EP0673131A2 Hierarchical OFDM system
09/20/1995EP0603053B1 Method and apparatus for generating binary errors
09/20/1995CN1108834A Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver
09/19/1995US5452333 Digital jitter correction method and signal preconditioner
09/19/1995US5452322 Receiver for digital signals transmitted in the coded differential modulation mode
09/19/1995US5452302 Protocol for asynchronous character communication
09/19/1995US5452288 Method for the transmission of digital data in radio paging systems and corresponding radio paging receiver
09/19/1995US5452286 Digital transmission apparatus for subscribers having switching function from active transmission line to protection transmission line
09/16/1995CA2144663A1 Hierarchcial quadrature frequency multiplex system, transmitting apparatus and receiving apparatus therefor
09/14/1995WO1995024786A1 Time diversity communication system
09/14/1995WO1995024775A2 Transmitter and receiver apparatus, method for transmitting and method for receiving and record carrier obtained by the method or the transmitter apparatus
09/14/1995WO1995024770A1 Image transmission process
09/14/1995WO1995024769A2 Universal reed-solomon coder/encoder
09/14/1995DE4408163A1 Verfahren zum Übertragen von Daten A method for transmitting data
09/13/1995EP0671093A1 An arrangement for bit error monitoring in switching equipment
09/13/1995EP0671092A1 Method and apparatus for providing cryptographic protection of a data stream in a communication system
09/13/1995EP0671082A1 Dot product circuit for multipath receivers
09/13/1995EP0671032A1 Coding with modulation, error control, weighting, and bit allocation
09/12/1995US5450453 Method, apparatus and system for decoding a non-coherently demodulated signal
09/12/1995US5450445 Method and arrangement of estimating data sequences transmitted using viterbi algorithm
09/12/1995US5450441 Mechanism for monitoring quality of digital telephone link based upon rate of occurrence of illegal bipolar violations
09/12/1995US5450440 Monitor system for digital communication apparatus
09/12/1995US5450438 Method for providing an autorate feature in a modern
09/12/1995US5450425 System for fault-tolerant communication
09/12/1995US5450419 Error checking apparatus and method for a serial signal transmission system
09/12/1995US5450416 Apparatus and method for testing multifunction communications networks
09/12/1995US5450403 Method and apparatus for multiplex transmission
09/08/1995WO1995024074A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
09/08/1995CA2184811A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
09/06/1995EP0670549A2 High availability data processing system and method using finite state machines
09/06/1995EP0669958A1 Mixtures of polymers of monoethylenically unsaturated dicarboxylic acids and polymers of ethylenically unsaturated monocarboxylic acids and/or polyaminocarboxylic acids, and the use of such mixtures
09/06/1995EP0394357B1 Acknowledge back pager with apparatus for controlling transmit frequency
09/05/1995US5448721 Duplicated communications processing system and communications system including the duplicated communications processing system
09/05/1995US5448616 In a radio communication system
09/05/1995US5448602 Diversity radio receiver
09/05/1995US5448601 Algorithm control method for blind equalization systems
09/05/1995US5448593 Frequency hopping time-diversity communications systems and transceivers for local area networks
09/05/1995US5448592 Apparatus for modulating digital signals onto a carrier
09/05/1995US5448573 Automatic circuit switching device restorable without a hit and its method
09/05/1995CA2038028C Continuous on-line link error rate detector
08/1995
08/31/1995WO1995023462A1 Evaluation of signal-processor performance
08/31/1995WO1995023459A1 Method and apparatus for utilizing multiple spreading codes in a communication system
08/31/1995WO1995023384A2 Error correctable data transmission method and device based on semi-cyclic codes
08/31/1995CA2183429A1 Evaluation of signal-processor performance
08/31/1995CA2158356A1 Method and apparatus for utilizing multiple spreading codes in a communication system
08/30/1995EP0669729A1 Method for implementing multichannel equalisation in a radio receiver in the presence of interferece and multipath propagation
08/30/1995EP0669073A1 Method for supervising base station radio channels
08/30/1995EP0669026A1 Method and apparatus for detecting bad frames of information in a communication system
08/30/1995EP0669025A1 A dual mode radio communication unit
08/30/1995EP0430962B1 A method for remote configuration of a modem
08/29/1995US5446924 Method for assuring data integrity during a repeater transition
08/29/1995US5446918 Cable network and modulator-demondulator arrangement for such a network
08/29/1995US5446781 Testing of subscriber lines in a digital switch
08/29/1995US5446763 Apparatus and method for converting soft symbols into soft bits
08/29/1995US5446759 Information transmission system and method of operation
08/29/1995US5446756 Integrated cellular communications system
08/29/1995US5446747 Error-correction coding method with at least two systematic convolutional codings in parallel, corresponding iterative decoding method, decoding module and decoder
08/29/1995US5446725 Method of changing over path switch in optical transmission device
08/29/1995US5446683 Methods and apparatus for generating pseudo-random binary patterns
08/29/1995US5446456 Digital signal processing system
08/24/1995WO1995022859A1 A high-data-rate wireless local-area network
08/24/1995WO1995022818A1 Method and apparatus for group encoding signals
08/23/1995EP0668683A1 Method and system for characterizing phase-modulated signals using a time interval analyzer
08/23/1995EP0668677A1 Method and apparatus for evaluating the system margin of a digital transmission system
08/23/1995EP0667971A1 Method and device for acknowledgement of transmitted information
08/22/1995US5444745 Diversity reception arrangement
08/22/1995US5444721 Maximum likelihood sequence estimation apparatus
08/22/1995US5444720 Method for the transmission of items of auxiliary information in an AM radio broadcast signal
08/22/1995US5444718 Retransmission protocol for wireless communications
08/22/1995US5444705 Dual priority switching apparatus for simplex networks
08/17/1995DE4343982C1 Line connection system for digital telephone communication network
08/16/1995EP0667533A2 Loss-of-signal detector
08/16/1995EP0667074A1 Packet delivery system
08/16/1995EP0667071A1 Error analysis in data blocks
08/16/1995EP0667055A1 A method and apparatus for mitigating distortion effects in the determination of signal usability
08/16/1995EP0667019A1 Hand-held data capture system with interchangeable modules
08/16/1995CN1106971A Method for controlling determination direction calculation
08/15/1995US5442772 Common breakpoint in virtual time logic simulation for parallel processors
08/15/1995US5442697 Digital data loopback device
08/15/1995US5442646 Subcarrier communication system
08/15/1995US5442637 Reducing the complexities of the transmission control protocol for a high-speed networking environment