FR2023424A1 - - Google Patents

Info

Publication number
FR2023424A1
FR2023424A1 FR6939253A FR6939253A FR2023424A1 FR 2023424 A1 FR2023424 A1 FR 2023424A1 FR 6939253 A FR6939253 A FR 6939253A FR 6939253 A FR6939253 A FR 6939253A FR 2023424 A1 FR2023424 A1 FR 2023424A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6939253A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of FR2023424A1 publication Critical patent/FR2023424A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1604—Error detection or correction of the data by redundancy in hardware where the fault affects the clock signals of a processing unit and the redundancy is at or within the level of clock signal generation hardware
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Manipulation Of Pulses (AREA)
  • Safety Devices In Control Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Details Of Garments (AREA)
FR6939253A 1968-11-15 1969-11-14 Withdrawn FR2023424A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15508/68D SE326321B (fr) 1968-11-15 1968-11-15

Publications (1)

Publication Number Publication Date
FR2023424A1 true FR2023424A1 (fr) 1970-08-21

Family

ID=57808726

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6939253A Withdrawn FR2023424A1 (fr) 1968-11-15 1969-11-14

Country Status (9)

Country Link
US (1) US3628158A (fr)
BE (1) BE741722A (fr)
DE (1) DE1958019A1 (fr)
DK (1) DK123193B (fr)
FR (1) FR2023424A1 (fr)
GB (1) GB1287780A (fr)
NL (1) NL6917159A (fr)
NO (1) NO122159B (fr)
SE (1) SE326321B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059797B1 (de) * 1970-12-04 1972-05-25 Siemens Ag Taktversorgungsanlage
DE2204703C3 (de) * 1971-02-22 1981-05-27 Società Italiana Telecomunicazioni Siemens S.p.A., 20149 Milano Schaltungsanordnung zum Einführen eines Ersatz-Taktsignals in ein PCM-Übertragungssystem
US3795872A (en) * 1972-09-18 1974-03-05 Bell Telephone Labor Inc Protection scheme for clock signal recovery arrangement
US4021784A (en) * 1976-03-12 1977-05-03 Sperry Rand Corporation Clock synchronization system
US4254492A (en) * 1979-04-02 1981-03-03 Rockwell International Corporation Redundant clock system utilizing nonsynchronous oscillators
FR2506478A1 (fr) * 1981-05-20 1982-11-26 Telephonie Ind Commerciale Dispositif pour augmenter la securite de fonctionnement d'une horloge dupliquee
US4920540A (en) * 1987-02-25 1990-04-24 Stratus Computer, Inc. Fault-tolerant digital timing apparatus and method
US4446437A (en) * 1981-12-21 1984-05-01 Gte Automatic Electric Labs Inc. Pulse monitor circuit
DE3201864A1 (de) * 1982-01-22 1983-08-04 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum synchronisieren taktgesteuerter datenverarbeitungsanlagen
US4691126A (en) * 1985-08-29 1987-09-01 Sperry Corporation Redundant synchronous clock system
FR2607283B1 (fr) * 1986-11-25 1992-02-28 Centre Nat Etd Spatiales Systeme de synchronisation d'elements sequentiels munis chacun d'une horloge interne
JPH0778039A (ja) * 1993-09-08 1995-03-20 Fujitsu Ltd クロック選択制御方式

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289097A (en) * 1964-05-11 1966-11-29 Gen Dynamics Corp Emergency clock pulse standby system
US3329905A (en) * 1964-05-21 1967-07-04 Gen Dynamics Corp High speed switchover circuit
US3479603A (en) * 1966-07-28 1969-11-18 Bell Telephone Labor Inc A plurality of sources connected in parallel to produce a timing pulse output while any source is operative
US3431510A (en) * 1967-10-13 1969-03-04 Gen Time Corp Oscillator system with malfunction detecting means and automatic switch-over circuit

Also Published As

Publication number Publication date
DK123193B (da) 1972-05-23
NO122159B (fr) 1971-05-24
SE326321B (fr) 1970-07-20
GB1287780A (en) 1972-09-06
DE1958019A1 (de) 1970-05-21
DE1958019B2 (fr) 1970-11-26
BE741722A (fr) 1970-04-16
NL6917159A (fr) 1970-05-20
US3628158A (en) 1971-12-14

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Legal Events

Date Code Title Description
ST Notification of lapse