CH618572GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH618572GA3 CH618572GA3 CH1233977A CH1233977A CH618572GA3 CH 618572G A3 CH618572G A3 CH 618572GA3 CH 1233977 A CH1233977 A CH 1233977A CH 1233977 A CH1233977 A CH 1233977A CH 618572G A3 CH618572G A3 CH 618572GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- frequency
- input signal
- timepiece
- phase
- signal
- Prior art date
Links
- 239000010453 quartz Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
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
- G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Electric Clocks (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1233977A CH618572B (fr) | 1977-10-10 | 1977-10-10 | Procede de mesure de la marche ou de l'ecart de frequence d'une piece d'horlogerie a quartz et appareil de mesure pour la mise en oeuvre de ce procede. |
DE19782843699 DE2843699A1 (de) | 1977-10-10 | 1978-10-05 | Verfahren zum messen des gangs oder der frequenzabweichung einer quarzuhr |
GB7839801A GB2007881A (en) | 1977-10-10 | 1978-10-09 | Method for measruring the running or the deviation of frequency of a quartz timepiece and measuring apparatus for carrying out this method |
US05/949,993 US4201077A (en) | 1977-10-10 | 1978-10-10 | Method for measuring the rate or the frequency error of a quartz timepiece and measuring apparatus for carrying out this method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1233977A CH618572B (fr) | 1977-10-10 | 1977-10-10 | Procede de mesure de la marche ou de l'ecart de frequence d'une piece d'horlogerie a quartz et appareil de mesure pour la mise en oeuvre de ce procede. |
Publications (2)
Publication Number | Publication Date |
---|---|
CH618572B CH618572B (fr) | |
CH618572GA3 true CH618572GA3 (en]) | 1980-08-15 |
Family
ID=4382095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1233977A CH618572B (fr) | 1977-10-10 | 1977-10-10 | Procede de mesure de la marche ou de l'ecart de frequence d'une piece d'horlogerie a quartz et appareil de mesure pour la mise en oeuvre de ce procede. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4201077A (en]) |
CH (1) | CH618572B (en]) |
DE (1) | DE2843699A1 (en]) |
GB (1) | GB2007881A (en]) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3414036A1 (de) * | 1983-04-13 | 1984-11-15 | Noble, John Henry, Greenwich, Sidney | Uhrwerk-abgleichvorrichtung |
JP3013775B2 (ja) * | 1996-04-11 | 2000-02-28 | 日本精機株式会社 | ステッピングモータ式計器の駆動装置 |
ITMI20112421A1 (it) * | 2011-12-29 | 2013-06-30 | St Microelectronics Srl | Metodo e circuito per determinare frequenze di risonanza di un dispositivo risonante |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2243702A (en) * | 1939-05-19 | 1941-05-27 | Rca Corp | Frequency monitor and detector |
US3892124A (en) * | 1974-06-14 | 1975-07-01 | Time Computer | Wristwatch analyzer |
US4041767A (en) * | 1976-10-18 | 1977-08-16 | Keeler Eugene R | Testing apparatus for use in calibrating wristwatches |
-
1977
- 1977-10-10 CH CH1233977A patent/CH618572B/fr not_active IP Right Cessation
-
1978
- 1978-10-05 DE DE19782843699 patent/DE2843699A1/de not_active Withdrawn
- 1978-10-09 GB GB7839801A patent/GB2007881A/en not_active Withdrawn
- 1978-10-10 US US05/949,993 patent/US4201077A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2007881A (en) | 1979-05-23 |
CH618572B (fr) | |
DE2843699A1 (de) | 1979-04-12 |
US4201077A (en) | 1980-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |