CH553446A - - Google Patents

Info

Publication number
CH553446A
CH553446A CH75772A CH75772A CH553446A CH 553446 A CH553446 A CH 553446A CH 75772 A CH75772 A CH 75772A CH 75772 A CH75772 A CH 75772A CH 553446 A CH553446 A CH 553446A
Authority
CH
Switzerland
Application number
CH75772A
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
Priority claimed from JP428671A external-priority patent/JPS5331380B1/ja
Application filed filed Critical
Publication of CH553446A publication Critical patent/CH553446A/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
CH75772A 1971-01-20 1972-01-19 CH553446A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP122871 1971-01-20
JP428671A JPS5331380B1 (fr) 1971-02-05 1971-02-05

Publications (1)

Publication Number Publication Date
CH553446A true CH553446A (fr) 1974-08-30

Family

ID=36583797

Family Applications (2)

Application Number Title Priority Date Filing Date
CH75772A CH553446A (fr) 1971-01-20 1972-01-19
CH75772D CH75772A4 (fr) 1971-01-20 1972-01-19

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH75772D CH75772A4 (fr) 1971-01-20 1972-01-19

Country Status (2)

Country Link
US (1) US3868845A (fr)
CH (2) CH553446A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1455271A4 (fr) * 1971-10-05 1975-04-15
US3926048A (en) * 1972-12-12 1975-12-16 Renata Ag Device for the digital indication of the accuracy of a mechanical clockwork
US3961272A (en) * 1974-12-17 1976-06-01 Witriol Norman M Encoding altimeter
US4052676A (en) * 1976-06-10 1977-10-04 Woodward Governor Company Digital-analog frequency error signaling
US4104590A (en) * 1976-11-30 1978-08-01 Sergei Vasilievich Zhevnerov Digital device for measuring instantaneous parameter values of slowly varying processes
JPS53149076A (en) * 1977-06-01 1978-12-26 Sony Corp Digital frequency detecting circuit
DE2840555A1 (de) * 1978-09-18 1980-03-20 Itt Ind Gmbh Deutsche Schaltungsanordnung zur messung der periodendauer einer impulsfolge, deren verwendung und schaltungsanordnung nach dieser verwendung
US5042300A (en) * 1986-11-03 1991-08-27 Kelsey-Hayes Company Liquid level sensor
JPH0292012A (ja) * 1988-09-29 1990-03-30 Toshiba Corp パルス発生回路
JP2001228909A (ja) * 2000-02-16 2001-08-24 Star Micronics Co Ltd 工作機械及びその制御方法
US7330803B2 (en) * 2005-06-22 2008-02-12 Ametek, Inc. High resolution time interval measurement apparatus and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682187A (en) * 1952-08-11 1954-06-29 Kirby David Watch and clock microregulator
US3272971A (en) * 1963-02-05 1966-09-13 Burroughs Corp Electronic count accumulator
CH432392A (fr) * 1964-08-31 1966-10-31 Portescap Le Porte Procédé et appareil de contrôle instantané de la marche d'un mouvement d'horlogerie
US3370456A (en) * 1966-02-18 1968-02-27 Portescan Le Porte Echanpement Timepiece testing apparatus
US3500022A (en) * 1966-06-24 1970-03-10 Hughes Aircraft Co Reversible electronic digital counter
US3585502A (en) * 1968-07-31 1971-06-15 Ampex Method and apparatus for subperiod measurement of successive variable time periods
GB1273429A (en) * 1969-08-01 1972-05-10 Standard Telephones Cables Ltd Improvements in or relating to measuring instruments
US3624649A (en) * 1969-10-10 1971-11-30 Honeywell Inc Period readout error checking apparatus

Also Published As

Publication number Publication date
CH75772A4 (fr) 1974-02-28
US3868845A (en) 1975-03-04

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