Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 13 - Details of the apparatus or circuits covered by groups or
Patents for H04L 13 - Details of the apparatus or circuits covered by groups or (1,941)
12/1990
12/25/1990US4980852 Non-locking queueing mechanism for enabling a receiver device to read from a queue without access synchronization with a sending device
12/11/1990CA1277772C Deep trap machine
12/04/1990US4975828 Multi-channel data communications controller
11/1990
11/22/1990EP0397686A1 Apparatus for efficiently packing data in a buffer.
11/13/1990CA1276309C Enhanced distance data transmission system
10/1990
10/31/1990EP0395208A2 Bit residue correction in DLC receivers
10/30/1990CA1275732C Bidirectional elastic store circuit
10/17/1990EP0392397A2 Symbol-wide elasticity buffer
09/1990
09/25/1990US4959773 Adapter for attaching I/O devices to I/O communications with alternating read and write modes link
09/11/1990US4956768 Wideband server, in particular for transmitting music or images
08/1990
08/28/1990US4953180 Bit rate adaptation system for digital transmission systems
08/28/1990CA1273438A1 Address comparator
08/22/1990EP0383260A2 Elastic buffer circuit
07/1990
07/10/1990CA1271562A1 Interface between a computer bus and a serial packet link
06/1990
06/27/1990EP0374794A2 Digital transmitting/receiving apparatus using buffer memory to eliminated effects of jitter
05/1990
05/16/1990EP0368250A2 Apparatus for transmitting stored information
05/09/1990EP0366866A2 A packet switch protocol and apparatus as for a parallel processing machine
04/1990
04/03/1990US4914675 Apparatus for efficiently packing data in a buffer
03/1990
03/28/1990EP0360721A2 Method and apparatus for high speed asynchronous communication
03/14/1990EP0358201A2 Method for representing accentuated characters
03/06/1990US4907094 Data communication system
02/1990
02/28/1990EP0355714A2 Method and apparatus for initiating communication services
02/27/1990US4905232 Peripheral repeater box
01/1990
01/30/1990CA1265255A1 Application specific integrated circuit
12/1989
12/07/1989DE3818518A1 Arrangement for indicating connection states on a text station
11/1989
11/29/1989EP0343305A1 Bit rate adaptation system for digital transmission systems
11/23/1989EP0342596A2 Communication control device
11/02/1989EP0339797A2 Method and apparatus for nodes in network to avoid shrinkage of an interframe gap
10/1989
10/31/1989US4878219 Method and apparatus for nodes in network to avoid shrinkage of an interframe gap
09/1989
09/27/1989EP0334337A1 Method and circuit arrangement for recognizing a pattern in a sequence of data
09/27/1989EP0334194A1 Arrangement for data transmission
09/19/1989US4868758 Data communication system
08/1989
08/29/1989US4862461 Packet switch network protocol
08/22/1989US4860342 Computer-telephone interface method and apparatus
08/22/1989US4860293 Supervision circuit for a non-encoded binary bit stream
08/10/1989WO1989007372A1 Apparatus for efficiently packing data in a buffer
07/1989
07/25/1989US4852127 Universal protocol data receiver
07/18/1989US4850008 Method and apparatus for discrimination between different kinds of data transmission
07/11/1989US4847877 Method and apparatus for detecting a predetermined bit pattern within a serial bit stream
06/1989
06/27/1989US4843479 Data communication apparatus
06/27/1989CA1256615A1 Personal computer - as an interface between a telephone station set and a business communication system
05/1989
05/30/1989US4835346 Method and device for fast data transmission through a standard serial link
05/30/1989CA1255006A1 Data transmission system
05/09/1989CA1253967A1 Method and circuit for suppressing sequential "zeroes" data
04/1989
04/19/1989EP0311798A2 Data input/output circuit
04/18/1989CA1252898A1 Universal protocol data receiver
04/04/1989US4819208 Biodirectional elastic store circuit
03/1989
03/28/1989US4816823 Application specific integrated circuit
03/21/1989US4815111 Data receiving system
03/01/1989EP0304540A2 A method of initializing a data processing system
02/1989
02/22/1989EP0303991A2 Method of packetizing data
02/15/1989EP0303288A2 Peripheral repeater box
02/14/1989CA1250065A1 System for controlling network activation sequence
02/07/1989US4803312 Interface between personal computer and telex communication system
11/1988
11/29/1988US4788660 Data bus buffer control circuit
10/1988
10/25/1988US4780813 Data transport control apparatus
10/25/1988CA1243686A1 Process for the manufacture of an aldehyde
10/13/1988DE3809795A1 Information transmission system using IC cards
10/05/1988EP0285335A2 Data communication system and method
10/04/1988US4775893 Facsimile transmission system
09/1988
09/21/1988EP0283350A1 Broad-band host, particularly for the transmission of music or images
09/13/1988US4771402 Address comparator
09/13/1988US4771282 Terminal for data transmission system
09/06/1988US4769769 Communication system including a first-in-first-out buffer
09/06/1988CA1241720A1 Remote control system for data communication utilizing modems
08/1988
08/30/1988CA1241384A1 Serial-to-parallel converter for high-speed bit streams
08/23/1988CA1241126A1 Circuit for transmitting data signals via a plurality of addressable latches
07/1988
07/20/1988EP0274709A2 Packet switch network protocol
07/06/1988EP0273083A1 Non-locking queueing mechanism
07/05/1988US4755971 Buffer memory for an input line of a digital interface
06/1988
06/28/1988US4754420 Digital data filter for local area network
06/08/1988EP0269974A2 Method and apparatus for detecting a predetermined bit pattern within a serial bit stream
06/07/1988CA1237793A1 Terminal for data transmission system
05/1988
05/31/1988US4748656 Personal computer--as an interface between a telephone station set and a business communication system
05/10/1988US4744097 Data transmission system
05/04/1988EP0265571A1 Receive and transmit mechanisms for the line scanners of a communication controller
04/1988
04/26/1988US4740994 Method and circuit for suppressing sequential "zeroes" data
04/05/1988US4736074 Arrangement for the transmission of data
03/1988
03/29/1988US4734676 Method and device for detecting a particular bit pattern in a serial train of bits
03/08/1988US4730308 Interface between a computer bus and a serial packet link
03/02/1988EP0257776A2 Application specific integrated circuit for cooperation with microprocessor equipment
01/1988
01/05/1988US4717914 Methods for receiving and converting high speed serial data pattern input signals to parallel data pattern outputs
12/1987
12/10/1987DE3616978C1 Method and device to output remotely transmitted information
10/1987
10/21/1987EP0241784A1 Arrangement for the transmission of data
09/1987
09/30/1987EP0116047B1 Multiplexed first-in, first-out queues
09/23/1987EP0238255A2 The personal computer - as an interface between a telephone station set and a business communication system
09/08/1987US4692894 Overflow/Underflow detection for elastic buffer
09/08/1987US4692893 Buffer system using parity checking of address counter bit for detection of read/write failures
08/1987
08/19/1987EP0232660A1 Terminal for a digital dater transmission network with packet switching
08/18/1987US4688220 Distribution of a data stream in a series-parallel-series digital arrangement comprising digital units having at least one defective element
07/1987
07/14/1987US4680699 Terminal control apparatus for parallel execution of data editing and data transmission/reception control
07/01/1987EP0227378A2 Method for receiving and converting high speed serial data pattern input signals to parallel data pattern output
07/01/1987EP0227145A1 Supervision circuit for a non-encoded binary bit stream
05/1987
05/27/1987EP0223462A1 Data processing work station with integrated teletex
05/27/1987EP0223458A2 Deep trap machine
05/19/1987CA1222058A1 Buffer system with detection of read or write circuits failures
05/06/1987EP0220802A2 Serial-to-parallel converter for high-speed bit streams
05/06/1987EP0118446B1 First-in, first-out (fifo) memory configuration for queue storage
05/05/1987US4663754 Remote control system for data communication utilizing modems
03/1987
03/31/1987CA1219957A1 Asynchronous buffered communications interface
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