FR2458815B1 - - Google Patents

Info

Publication number
FR2458815B1
FR2458815B1 FR7914950A FR7914950A FR2458815B1 FR 2458815 B1 FR2458815 B1 FR 2458815B1 FR 7914950 A FR7914950 A FR 7914950A FR 7914950 A FR7914950 A FR 7914950A FR 2458815 B1 FR2458815 B1 FR 2458815B1
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.)
Expired
Application number
FR7914950A
Other languages
French (fr)
Other versions
FR2458815A1 (fr
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.)
Alstom SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Priority to FR7914950A priority Critical patent/FR2458815A1/fr
Priority to DE19803021417 priority patent/DE3021417A1/de
Publication of FR2458815A1 publication Critical patent/FR2458815A1/fr
Application granted granted Critical
Publication of FR2458815B1 publication Critical patent/FR2458815B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
FR7914950A 1979-06-12 1979-06-12 Procede et dispositif de mesure digitale d'une frequence par inversion de periode Granted FR2458815A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7914950A FR2458815A1 (fr) 1979-06-12 1979-06-12 Procede et dispositif de mesure digitale d'une frequence par inversion de periode
DE19803021417 DE3021417A1 (de) 1979-06-12 1980-06-06 Verfahren und anordnung zur digitalen messung der frequenz einer impulsfolge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7914950A FR2458815A1 (fr) 1979-06-12 1979-06-12 Procede et dispositif de mesure digitale d'une frequence par inversion de periode

Publications (2)

Publication Number Publication Date
FR2458815A1 FR2458815A1 (fr) 1981-01-02
FR2458815B1 true FR2458815B1 (OSRAM) 1982-11-26

Family

ID=9226459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914950A Granted FR2458815A1 (fr) 1979-06-12 1979-06-12 Procede et dispositif de mesure digitale d'une frequence par inversion de periode

Country Status (2)

Country Link
DE (1) DE3021417A1 (OSRAM)
FR (1) FR2458815A1 (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36508E (en) * 1989-12-21 2000-01-18 Sgs-Thomson Microelectronics S.R.L. Method of automatically measuring the horizontal scan frequency of a composite synchronism signal, and an electronic circuit operating in accordance with the method
IT1236913B (it) * 1989-12-21 1993-04-26 Sgs Thomson Microelectronics Metodo di misura automatica della frequenza di scansione orizzontale di un segnale a sincronismo composito e circuito elettronico operante secondo detto metodo

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910539A1 (de) * 1968-03-04 1969-09-25 Weston Instruments Inc Anordnung zur Messung der Frequenz eines Eingangssignals
US3553728A (en) * 1968-05-20 1971-01-05 Gen Radio Co Frequency measuring apparatus with automatic adjustment of measurement interval for enhanced speed and accuracy
US3525039A (en) * 1968-06-12 1970-08-18 Time Systems Corp Digital apparatus and method for computing reciprocals and quotients
GB1258056A (OSRAM) * 1968-07-01 1971-12-22
US3555256A (en) * 1968-07-26 1971-01-12 Gen Radio Co Automatic electronic counter apparatus
CA980987A (en) * 1970-08-17 1976-01-06 George B. Moertel Slide fastener chains
DE2353038A1 (de) * 1973-10-23 1975-04-30 Teldix Gmbh Verfahren und anordnung zur messung der impulsfolgefrequenz einer impulsfolge
US4090090A (en) * 1976-07-19 1978-05-16 Westinghouse Electric Corp. Automatic transfer control device and frequency monitor
ES469472A1 (es) * 1977-05-14 1979-03-16 Lucas Industries Ltd Dispositivo para proporcionar una senal electrica.

Also Published As

Publication number Publication date
FR2458815A1 (fr) 1981-01-02
DE3021417A1 (de) 1980-12-18

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Legal Events

Date Code Title Description
ST Notification of lapse