DK0407903T3 - TDM transfer information system with a receiving side synchronization circuit, which responds to the encoding of words inserted into the transmitted information - Google Patents

TDM transfer information system with a receiving side synchronization circuit, which responds to the encoding of words inserted into the transmitted information

Info

Publication number
DK0407903T3
DK0407903T3 DK90112908.0T DK90112908T DK0407903T3 DK 0407903 T3 DK0407903 T3 DK 0407903T3 DK 90112908 T DK90112908 T DK 90112908T DK 0407903 T3 DK0407903 T3 DK 0407903T3
Authority
DK
Denmark
Prior art keywords
syndrome
bit
transmitted
code
responds
Prior art date
Application number
DK90112908.0T
Other languages
Danish (da)
Inventor
Bernd X Dr Weis
Original Assignee
Sel Alcatel Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sel Alcatel Ag filed Critical Sel Alcatel Ag
Application granted granted Critical
Publication of DK0407903T3 publication Critical patent/DK0407903T3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/048—Speed or phase control by synchronisation signals using the properties of error detecting or error correcting codes, e.g. parity as synchronisation signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements

Abstract

There are time division multiplex information transmission systems in which synchronisation takes place by means of code words transmitted at regular time intervals and coded in a particular code. In systems in which the signals to be transmitted are transmitted in packets of uniform length, the code words in each case contain the information of the so-called header of a packet. The test device according to the invention tests all n-bit bit groups (Xj to Xj+n-1) beginning with an (Xj) of the successive bits of the bit sequence received successively for whether they are coded in the particular code. This is done by calculating the syndrome (S1 to Sn-k) in several parallel networks (N1 to Nn-k), each of which calculates one syndrome component. The bit sequence received is delayed until the networks have calculated the syndrome for a particular n-bit bit group and a syndrome evaluating circuit (LS) indicates, by means of the calculated syndrome, whether the bit group is a code word. <IMAGE>
DK90112908.0T 1989-07-08 1990-07-06 TDM transfer information system with a receiving side synchronization circuit, which responds to the encoding of words inserted into the transmitted information DK0407903T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3922486A DE3922486A1 (en) 1989-07-08 1989-07-08 TIME MULTIPLEX MESSAGE TRANSMISSION SYSTEM WITH A RECEIVING-SIDE RECORDING SYSTEM RESPECTING THE CODING OF WORDS INSERTED INTO THE TRANSMITTED MESSAGE

Publications (1)

Publication Number Publication Date
DK0407903T3 true DK0407903T3 (en) 1996-06-10

Family

ID=6384556

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90112908.0T DK0407903T3 (en) 1989-07-08 1990-07-06 TDM transfer information system with a receiving side synchronization circuit, which responds to the encoding of words inserted into the transmitted information

Country Status (10)

Country Link
EP (1) EP0407903B1 (en)
JP (1) JP2555213B2 (en)
KR (1) KR0162647B1 (en)
AT (1) ATE134465T1 (en)
AU (1) AU633109B2 (en)
CA (1) CA2020343C (en)
DE (2) DE3922486A1 (en)
DK (1) DK0407903T3 (en)
ES (1) ES2086333T3 (en)
HU (1) HU208772B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5632727A (en) * 1988-10-03 1997-05-27 Atrix Laboratories, Inc. Biodegradable film dressing and method for its formation
US5267249A (en) * 1991-05-09 1993-11-30 Codex Corporation Device and method for asynchronous cyclic redundancy checking for digital receivers
DE19736434C3 (en) 1997-08-21 2002-08-22 Nokia Mobile Phones Ltd Methods and devices for recognizing the position of data packets lying in a serial data reception stream

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678469A (en) * 1970-12-01 1972-07-18 Ibm Universal cyclic division circuit
IT1006135B (en) * 1973-12-27 1976-09-30 Sits Soc It Telecom Siemens CIRCUIT ARRANGEMENTS FOR CORRECTION OF THE SLIDING ERROR IN DATA TRANSMISSION SYSTEMS USING CYCLIC CODES
JPS51113506A (en) * 1975-03-31 1976-10-06 Hitachi Ltd Synchronizing equipment for digital code transmission
US4755993A (en) * 1986-07-16 1988-07-05 Northern Telecom Limited Transmission system using forward error correction
US4847877A (en) * 1986-11-28 1989-07-11 International Business Machines Corporation Method and apparatus for detecting a predetermined bit pattern within a serial bit stream
DE3707143A1 (en) * 1987-03-06 1988-09-15 Blaupunkt Werke Gmbh DEVICE FOR RECEIVING DATA
DE3735377A1 (en) * 1987-10-19 1989-04-27 Siemens Ag Method for synchronizing a time-division multiplex system for a transmission of packets of uniform length

Also Published As

Publication number Publication date
EP0407903B1 (en) 1996-02-21
EP0407903A2 (en) 1991-01-16
ES2086333T3 (en) 1996-07-01
CA2020343C (en) 1996-05-21
HUT57967A (en) 1991-12-30
ATE134465T1 (en) 1996-03-15
JPH03139033A (en) 1991-06-13
HU208772B (en) 1993-12-28
EP0407903A3 (en) 1992-12-02
KR0162647B1 (en) 1998-12-01
HU904068D0 (en) 1990-12-28
JP2555213B2 (en) 1996-11-20
CA2020343A1 (en) 1991-01-09
DE3922486A1 (en) 1991-01-17
KR910003963A (en) 1991-02-28
AU5801190A (en) 1991-01-10
AU633109B2 (en) 1993-01-21
DE59010143D1 (en) 1996-03-28

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