ZA865726B - Clock signal selection and security arrangements - Google Patents

Clock signal selection and security arrangements

Info

Publication number
ZA865726B
ZA865726B ZA865726A ZA865726A ZA865726B ZA 865726 B ZA865726 B ZA 865726B ZA 865726 A ZA865726 A ZA 865726A ZA 865726 A ZA865726 A ZA 865726A ZA 865726 B ZA865726 B ZA 865726B
Authority
ZA
South Africa
Prior art keywords
clock signal
signal selection
security arrangements
arrangements
security
Prior art date
Application number
ZA865726A
Other languages
English (en)
Inventor
Francis Melinn
Roger Greenland
Original Assignee
Plessey Overseas
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 Plessey Overseas filed Critical Plessey Overseas
Publication of ZA865726B publication Critical patent/ZA865726B/xx

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
    • H04L7/0079—Receiver details
    • H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
ZA865726A 1985-08-09 1986-07-31 Clock signal selection and security arrangements ZA865726B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08520035A GB2178926A (en) 1985-08-09 1985-08-09 Clock signal selection and security arrangements

Publications (1)

Publication Number Publication Date
ZA865726B true ZA865726B (en) 1988-11-30

Family

ID=10583551

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA865726A ZA865726B (en) 1985-08-09 1986-07-31 Clock signal selection and security arrangements

Country Status (5)

Country Link
EP (1) EP0211674A3 (de)
JP (1) JPS62168438A (de)
FI (1) FI863224A (de)
GB (1) GB2178926A (de)
ZA (1) ZA865726B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6775344B1 (en) 1999-04-02 2004-08-10 Storage Technology Corporation Dropout resistant phase-locked loop

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2080251A5 (de) * 1970-02-27 1971-11-12 Lannionnais Electronique
IT1051350B (it) * 1975-12-09 1981-04-21 Cselt Centro Studi Lab Telecom Sistema di temporizzazione tripli to per impianti duplicati conte nenti circuiti logici
US4322580A (en) * 1980-09-02 1982-03-30 Gte Automatic Electric Labs Inc. Clock selection circuit
FR2577087B1 (fr) * 1985-02-07 1987-03-06 Thomson Csf Mat Tel Dispositif de distribution d'horloge tripliquee, chaque signal d'horloge comportant un signal de synchronisation

Also Published As

Publication number Publication date
EP0211674A2 (de) 1987-02-25
FI863224A (fi) 1987-02-10
EP0211674A3 (de) 1989-01-18
GB2178926A (en) 1987-02-18
GB8520035D0 (en) 1985-09-18
JPS62168438A (ja) 1987-07-24
FI863224A0 (fi) 1986-08-06

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