GB1069650A - Digital synchronisation arrangements for time multiplex transmission receivers - Google Patents

Digital synchronisation arrangements for time multiplex transmission receivers

Info

Publication number
GB1069650A
GB1069650A GB4768863A GB4768863A GB1069650A GB 1069650 A GB1069650 A GB 1069650A GB 4768863 A GB4768863 A GB 4768863A GB 4768863 A GB4768863 A GB 4768863A GB 1069650 A GB1069650 A GB 1069650A
Authority
GB
United Kingdom
Prior art keywords
signal
synchronizing
counter
binary
gate
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.)
Expired
Application number
GB4768863A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1069650A publication Critical patent/GB1069650A/en
Expired 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
    • 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
    • H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

1,069,650. Multiplex pulse signalling. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. Dec. 3, 1963 [Dec. 11, 1962], No. 47688/63. Heading H4L. In a synchronizing arrangement for a receiver in a time division multiplex pulse transmission system, the incoming pulses are supplied via a regenerator. RV to a shift register SR. The synchronizing signal consists of.alternate binary 1 and binary 0 in successive frames and during the synchronizing period the appropriate stage (K1) of the register is interrogated by means of a. pulse applied to line S to see if it contains the correct signal at the expected time. When a binary 1 is present at stage KI and coincides with a pulse on line S a bistable device KI is set via AND gate Ud1. during the next synchronizing period the signal at stage 1 should be binary 0 and if this is so an output from bi-stable circuit, KI is passed via the INHIBIT gate Jnh and AND gate Ud2 to set a bistable device KII. Thus a binary counter Z is switched via an AND gate UD3 to its first position and at the same time a signal on line RS resets the bi-stable circuits. Similarly, after each pair of frames the counter Z is stepped to its next position and at its final, i.e. eighth position, a signal is passed via AND gate UDZ to set the channel distributer into operation and it remains in operation as long as the synchronizing signals appear at the correct time and hold the counter Z in its final position. If the correct synchronizing signal does not appear at the expected time the counter Z is switched back one or more steps by the signal on line S. To ensure that only a repeated number of successive false synchronizing signals can cause switching back of the counter Z it may be in the form of a forwardsbackwards counter arranged to count one step forward for a correct signal and two steps backward for an incorrect signal, a new synchronizing sequence being initiated only if the zero position is reached.
GB4768863A 1962-12-11 1963-12-03 Digital synchronisation arrangements for time multiplex transmission receivers Expired GB1069650A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DET23180A DE1195373B (en) 1962-12-11 1962-12-11 Device for digital synchronization of the reception distributor of a time division multiplex transmission system
DE1964T0026154 DE1238079B (en) 1962-12-11 1964-05-08 Device for the digital synchronization of the reception distributor of a time division multiplex transmission system

Publications (1)

Publication Number Publication Date
GB1069650A true GB1069650A (en) 1967-05-24

Family

ID=25999667

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4768863A Expired GB1069650A (en) 1962-12-11 1963-12-03 Digital synchronisation arrangements for time multiplex transmission receivers
GB1878165A Expired GB1102715A (en) 1962-12-11 1965-05-04 Improvements in or relating to digital synchronisation arrangements for time multiplex transmission system receivers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1878165A Expired GB1102715A (en) 1962-12-11 1965-05-04 Improvements in or relating to digital synchronisation arrangements for time multiplex transmission system receivers

Country Status (2)

Country Link
DE (2) DE1195373B (en)
GB (2) GB1069650A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621140A (en) * 1968-10-28 1971-11-16 Post Office Apparatus for aligning word interval signals with the word frame of received digital data

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267248B (en) * 1966-02-17 1968-05-02 Telefunken Patent Process for the digital synchronization of pulse-coded information of a data transmission system
US3562432A (en) * 1966-11-16 1971-02-09 Communications Satellite Corp Synchronizer for time division multiple access satellite communication system
US3526719A (en) * 1966-11-17 1970-09-01 Communications Satellite Corp Double aperture technique for detecting station identifying signal in a time division multiple access satellite communication system
GB1176869A (en) * 1967-11-06 1970-01-07 Marconi Co Ltd Improvements in or relating to Multiplexing Arrangements.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1225043A (en) * 1959-02-12 1960-06-28 Improvements to small-size electromagnetic relays for low powers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621140A (en) * 1968-10-28 1971-11-16 Post Office Apparatus for aligning word interval signals with the word frame of received digital data

Also Published As

Publication number Publication date
GB1102715A (en) 1968-02-07
DE1238079B (en) 1967-04-06
DE1195373B (en) 1965-06-24

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