FR1434784A - Perfectionnements aux équipements de comptage digital - Google Patents

Perfectionnements aux équipements de comptage digital

Info

Publication number
FR1434784A
FR1434784A FR18346A FR18346A FR1434784A FR 1434784 A FR1434784 A FR 1434784A FR 18346 A FR18346 A FR 18346A FR 18346 A FR18346 A FR 18346A FR 1434784 A FR1434784 A FR 1434784A
Authority
FR
France
Prior art keywords
metering equipment
digital metering
digital
equipment
metering
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
FR18346A
Other languages
English (en)
Inventor
Robert William Hunt
Eric Lindsay Jones
Peter Bonner
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1434784A publication Critical patent/FR1434784A/fr
Expired 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
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
FR18346A 1964-05-25 1965-05-25 Perfectionnements aux équipements de comptage digital Expired FR1434784A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21564/64A GB1047534A (en) 1964-05-25 1964-05-25 Improvements in or relating to digital counting equipments

Publications (1)

Publication Number Publication Date
FR1434784A true FR1434784A (fr) 1966-04-08

Family

ID=10165029

Family Applications (1)

Application Number Title Priority Date Filing Date
FR18346A Expired FR1434784A (fr) 1964-05-25 1965-05-25 Perfectionnements aux équipements de comptage digital

Country Status (6)

Country Link
US (1) US3420988A (fr)
BE (1) BE664420A (fr)
CH (3) CH427903A (fr)
FR (1) FR1434784A (fr)
GB (1) GB1047534A (fr)
NL (1) NL6506464A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541312A (en) * 1966-12-30 1970-11-17 Nasa Non-interruptable digital counting system
US3735387A (en) * 1969-08-21 1973-05-22 Gen Electric Means for inhibiting flutter in a numerical display
US3705296A (en) * 1970-02-24 1972-12-05 Iwatsu Electric Co Ltd Count display system
US3693097A (en) * 1970-09-04 1972-09-19 Hewlett Packard Co Gate control apparatus for setting the input signal counting interval
JPS5013131B1 (fr) * 1970-11-25 1975-05-17
US3989932A (en) * 1974-02-21 1976-11-02 Canoga Controls Corporation Inductive loop vehicle detector
US4685116A (en) * 1984-11-01 1987-08-04 Motorola, Inc. Incremental count display system
US4740045A (en) * 1986-07-02 1988-04-26 Goodson & Associates, Inc. Multiple parameter doppler radar
US4860228A (en) * 1987-02-24 1989-08-22 Motorola, Inc. Non-volatile memory incremental counting system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803405A (en) * 1952-06-02 1957-08-20 William D Howell Automatic counting apparatus
US3039685A (en) * 1957-03-27 1962-06-19 Hewlett Packard Co Electronic counter
GB864462A (en) * 1958-06-30 1961-04-06 Roe A V & Co Ltd Improvements relating to electrical counting
US3171953A (en) * 1962-03-30 1965-03-02 United Aircraft Corp Counter

Also Published As

Publication number Publication date
NL6506464A (fr) 1965-11-26
GB1047534A (en) 1966-11-09
CH464291A (de) 1968-10-31
CH427903A (de) 1967-01-15
US3420988A (en) 1969-01-07
CH464292A (de) 1968-10-31
BE664420A (fr) 1965-11-25

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