СПИСОК патентов США - подгруппа МПК16 H04L5/24


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№ п/п Номер патента Название патента

1995

15434891Data transfer arrangement permitting variable rate data transfer between a modem and a synchronous terminal
25432786Modem for modulating and demodulating main signal and secondary signal with clock synchronized system and transforming secondary signal between start-stop system and clock-synchronized system
35379327Synchronous-to-asynchronous converter

1994

45367545Asynchronous signal extracting circuit
55331669Asynchronous pulse converter

1993

65274628Multisignal synchronizer with shared last stage
75268934Asynchronous-to-synchronous converter
85267263Method and apparatus for interfacing synchronous data devices over an asynchronous communications channel
95267236Asynchronous parallel data formatter
105251313Method of bit rate adaption using the ECMA 102 protocol

1992

115132989Method of transmitting a sequence of M binary words of "p" bits and transmission arrangement implementing this method
125131013Asynchronous-synchronous digital transmission signal conversion
135121392Synchronous to non-synchronous data line pair interface apparatus
145099478Communication of secondary channel byte in a synchronous modem without statistical uncertainty

1991

155054020Apparatus for high speed data communication with asynchronous/synchronous and synchronous/asynchronous data conversion
165052025Synchronous digital signal to asynchronous digital signal desynchronizer

1990

174924464Technique for converting either way between a plurality of N synchronized serial bit streams and a parallel TDM format

1989

184884267TDM transmission system
194815099Data circuit-terminating equipment

1988

204791652Synchronization of asynchronous data signals
214768030Switch interface method and apparatus
224761800Method and apparatus for detecting a rate of data transmission
234759014Asynchronous-to-synchronous digital data multiplexer/demultiplexer with asynchronous clock regeneration
244755988Data communications switching device having multiple switches operating at plural selectable data rates
254745302Asynchronous signal synchronizing circuit

1987

264679191Variable bandwidth switching system
274635248Start-stop synchronous data transmission system with a reduced redundancy

1986

284633489Interface unit inserted between a data transfer unit and a processor unit
294597077Integrated voice/data/control switching system
304586189Asynchronous to synchronous data interface
314569062Interface circuit for interfacing between asynchronous data in start/stop format and synchronous data

1985

324556850Serial to parallel data conversion circuit
334519052Electronic roll-a-long switch

1984

344472803Digital transmitting system
354466097Control signal-multiplexing circuit

1983

364415881Digital-to-analog converter
374410980Time division multiplexing system

1982

384360914Process and an apparatus for transferring information representing at least two parameters
394360913Multiplexing I/O module
404352179Time domain multiplexing apparatus for multiple microphones
414328577Muldem automatically adjusting to system expansion and contraction

1981

424263673Receive buffer for converting synchronous-to-asynchronous data
434249254Arrangement for restituting selection signals
444247935Arrangement for converting start-stop signals into an isochronous signal
454245341Device for transmitting stochastically coded information

1980

464234949Multiplexer and time duration measuring circuit
474224474Method and apparatus for demultiplexing multiplexed seismic data
484215369Digital transmission system for television video signals
494214128Method and apparatus for demultiplexing multiplexed seismic data
504187394High-speed data link for moderate distances and noisy environments

1979

514171467Signal multiplexing circuit
524138596Equipments for connecting PCM multiplex digital transmission systems having different nominal bit rates
534137562Data acquisition from multiple sources
544135060Circuit arrangement for a time division multiplex communication system for the channel by channel combination at the receiving end of information transmitted in the form of multiframes

1978

554086436Transmit and receive digital data channel elastic store
564074074Time division digital transmission system

1977

574053708Asynchronous sample pulse generator
584049910Digital signal transmission system
594048440Asynchronous-to-synchronous data concentration system
604035580Switching arrangement for transmitting synchronously and asynchronously occurring data
614032709Circuit arrangement for lengthening a stop element at the receiver in a character-frame-governed time division multiplex data transmission system
624017683Digital multiplexing system employing remote scanning of a plurality of monitoring points
634006302Switching arrangement for extending the receiver stop pulse length in time division multiplex transmission
644002834PCM synchronization and multiplexing system

1976

653989892Line concentrator for dealing with asynchronous and synchronous data signals in a common bit format for a time division data switching exchange
663982077Asynchronous multiplexer and demultiplexer combination
673975593Time division multiplex system and method for the transmission of binary data
683963871Analysis device for establishing the binary value of asynchronous data signals
693961138Asynchronous bit-serial data receiver
703959594Arrangement and method for the localized self-control of randomly allotted time slots to audio ports
713937882Full-duplex communication system on a two wire line
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