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
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP122871 | 1971-01-20 | ||
| JP428671A JPS5331380B1 (en:Method) | 1971-02-05 | 1971-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH553446A true CH553446A (en:Method) | 1974-08-30 |
Family
ID=36583797
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH75772D CH75772A4 (en:Method) | 1971-01-20 | 1972-01-19 | |
| CH75772A CH553446A (en:Method) | 1971-01-20 | 1972-01-19 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH75772D CH75772A4 (en:Method) | 1971-01-20 | 1972-01-19 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3868845A (en:Method) |
| CH (2) | CH75772A4 (en:Method) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH567757B5 (en:Method) * | 1971-10-05 | 1975-10-15 | Omega Brandt & Freres Sa Louis | |
| 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)
| 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 |
-
1972
- 1972-01-10 US US216531A patent/US3868845A/en not_active Expired - Lifetime
- 1972-01-19 CH CH75772D patent/CH75772A4/xx unknown
- 1972-01-19 CH CH75772A patent/CH553446A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3868845A (en) | 1975-03-04 |
| CH75772A4 (en:Method) | 1974-02-28 |