FR2447659A1 - Synchronous group forming circuit for binary data - regenerates four octal groups of data corresp. to four groups of received information to reduce synchronising time (BR 14.10.80) - Google Patents

Synchronous group forming circuit for binary data - regenerates four octal groups of data corresp. to four groups of received information to reduce synchronising time (BR 14.10.80)

Info

Publication number
FR2447659A1
FR2447659A1 FR7901791A FR7901791A FR2447659A1 FR 2447659 A1 FR2447659 A1 FR 2447659A1 FR 7901791 A FR7901791 A FR 7901791A FR 7901791 A FR7901791 A FR 7901791A FR 2447659 A1 FR2447659 A1 FR 2447659A1
Authority
FR
France
Prior art keywords
groups
circuit
data
regenerates
reduce
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7901791A
Other languages
French (fr)
Other versions
FR2447659B1 (en
Inventor
Hieu Ky Nguyen
Claude Eugene Rene Carbonnier
Jean-Paul Lager
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7901791A priority Critical patent/FR2447659A1/en
Priority to BR8000375A priority patent/BR8000375A/en
Priority to GR61006A priority patent/GR74135B/el
Priority to PL22153580A priority patent/PL221535A1/xx
Priority to AU54852/80A priority patent/AU5485280A/en
Publication of FR2447659A1 publication Critical patent/FR2447659A1/en
Application granted granted Critical
Publication of FR2447659B1 publication Critical patent/FR2447659B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

A device for resynchronising numerical information comprises a supervision circuit (2) which receives numerical information (IFE) at the rate of a remote clock signal (HD), the information being in frames of 256 binary elements in 32 eight element time intervals. When synchronisation is lost a signal from the supervision circuit (2) is applied to a restoring circuit (6) which also receives the original information and clock pulses (HD). This circuits (6) supplies simultaneously four octet signals of the same rank belonging to four groups of 256 binary elements received. A test circuit (3) verifies whether or not synchronising conditions are present and supplies a regeneration signal (RS) to control an address circuit (8) for a frame memory circuit (9) which receives the original input information frame by frame and is controlled to transmit resynchronised signals.
FR7901791A 1979-01-24 1979-01-24 Synchronous group forming circuit for binary data - regenerates four octal groups of data corresp. to four groups of received information to reduce synchronising time (BR 14.10.80) Granted FR2447659A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7901791A FR2447659A1 (en) 1979-01-24 1979-01-24 Synchronous group forming circuit for binary data - regenerates four octal groups of data corresp. to four groups of received information to reduce synchronising time (BR 14.10.80)
BR8000375A BR8000375A (en) 1979-01-24 1980-01-21 NUMBER DATA RESINCHRONIZATION DEVICE
GR61006A GR74135B (en) 1979-01-24 1980-01-22
PL22153580A PL221535A1 (en) 1979-01-24 1980-01-23
AU54852/80A AU5485280A (en) 1979-01-24 1980-01-23 Digital data resynchronisation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7901791A FR2447659A1 (en) 1979-01-24 1979-01-24 Synchronous group forming circuit for binary data - regenerates four octal groups of data corresp. to four groups of received information to reduce synchronising time (BR 14.10.80)

Publications (2)

Publication Number Publication Date
FR2447659A1 true FR2447659A1 (en) 1980-08-22
FR2447659B1 FR2447659B1 (en) 1981-10-02

Family

ID=9221154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7901791A Granted FR2447659A1 (en) 1979-01-24 1979-01-24 Synchronous group forming circuit for binary data - regenerates four octal groups of data corresp. to four groups of received information to reduce synchronising time (BR 14.10.80)

Country Status (5)

Country Link
AU (1) AU5485280A (en)
BR (1) BR8000375A (en)
FR (1) FR2447659A1 (en)
GR (1) GR74135B (en)
PL (1) PL221535A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549032A1 (en) * 1991-12-21 1993-06-30 Philips Patentverwaltung GmbH Transmissionsystem with circuit for the detection of the modification of identifying codewords in cyclically arriving data-blocks

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742139A (en) * 1971-01-20 1973-06-26 M Bochly Framing system for t-carrier telephony
FR2389282A1 (en) * 1977-04-29 1978-11-24 Siemens Ag PROCESS AND ASSEMBLY FOR OBTAINING FRAME SYNCHRONIZATION IN A PCM RECEPTION DEVICE OF A PCM TELECOMMUNICATIONS NETWORK WITH MULTIPLEXING BY TIME-DISTRIBUTION

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742139A (en) * 1971-01-20 1973-06-26 M Bochly Framing system for t-carrier telephony
FR2389282A1 (en) * 1977-04-29 1978-11-24 Siemens Ag PROCESS AND ASSEMBLY FOR OBTAINING FRAME SYNCHRONIZATION IN A PCM RECEPTION DEVICE OF A PCM TELECOMMUNICATIONS NETWORK WITH MULTIPLEXING BY TIME-DISTRIBUTION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549032A1 (en) * 1991-12-21 1993-06-30 Philips Patentverwaltung GmbH Transmissionsystem with circuit for the detection of the modification of identifying codewords in cyclically arriving data-blocks

Also Published As

Publication number Publication date
BR8000375A (en) 1980-10-14
FR2447659B1 (en) 1981-10-02
GR74135B (en) 1984-06-06
AU5485280A (en) 1980-07-31
PL221535A1 (en) 1980-11-03

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Legal Events

Date Code Title Description
ST Notification of lapse