CH511976A4 - - Google Patents
Info
- Publication number
- CH511976A4 CH511976A4 CH511976D CH511976D CH511976A4 CH 511976 A4 CH511976 A4 CH 511976A4 CH 511976 D CH511976 D CH 511976D CH 511976 D CH511976 D CH 511976D CH 511976 A4 CH511976 A4 CH 511976A4
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G3/00—Producing timing pulses
- G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
- G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G5/00—Setting, i.e. correcting or changing, the time-indication
- G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH511976A CH604256B5 (xx) | 1976-04-23 | 1976-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH511976A4 true CH511976A4 (xx) | 1977-08-31 |
Family
ID=4288240
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH511976D CH511976A4 (xx) | 1976-04-23 | 1976-04-23 | |
| CH511976A CH604256B5 (xx) | 1976-04-23 | 1976-04-23 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH511976A CH604256B5 (xx) | 1976-04-23 | 1976-04-23 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4154053A (xx) |
| JP (1) | JPS6039191B2 (xx) |
| CH (2) | CH511976A4 (xx) |
| DE (1) | DE2716734C3 (xx) |
| FR (1) | FR2349161A1 (xx) |
| GB (1) | GB1570897A (xx) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH624539B (fr) * | 1977-12-02 | Ebauches Electroniques Sa | Piece d'horlogerie electronique avec correction automatique de l'ecart de marche. | |
| US4282594A (en) * | 1978-12-27 | 1981-08-04 | Citizen Watch Company Limited | Electronic timepiece |
| US4382692A (en) * | 1979-11-26 | 1983-05-10 | Ebauches, S.A. | Analog-display electronic timepiece comprising a divider with an adjustable division factor |
| US4407589A (en) * | 1981-02-13 | 1983-10-04 | Davidson John R | Error correction method and apparatus for electronic timepieces |
| US4408897A (en) * | 1982-09-22 | 1983-10-11 | Ebauches Electroniques S.A. | Electronic timepiece having a digital frequency correction circuit |
| AU631153B2 (en) * | 1988-12-19 | 1992-11-19 | Alcatel Australia Limited | Clock synchronization |
| JPH04502361A (ja) * | 1988-12-19 | 1992-04-23 | アルカテル・エヌ・ブイ | クロック同期装置 |
| US5327404A (en) * | 1990-11-27 | 1994-07-05 | Vlsi Technology, Inc. | On-chip frequency trimming method for real-time clock |
| US5717661A (en) * | 1994-12-20 | 1998-02-10 | Poulson; T. Earl | Method and apparatus for adjusting the accuracy of electronic timepieces |
| DE19847753A1 (de) * | 1998-10-16 | 2000-04-20 | Bosch Gmbh Robert | Uhr mit einem Mikroprozessor |
| US6616328B1 (en) * | 1999-10-26 | 2003-09-09 | Seiko Instruments Inc. | High accuracy timepiece |
| JP5119002B2 (ja) * | 2008-02-29 | 2013-01-16 | シチズン時計株式会社 | 時計回路および電子時計 |
| US20090129208A1 (en) * | 2009-01-28 | 2009-05-21 | Weiss Kenneth P | Apparatus, system and method for keeping time |
| WO2011118820A1 (ja) * | 2010-03-26 | 2011-09-29 | シチズンホールディングス株式会社 | 電波時計 |
| CN103197531A (zh) * | 2013-04-15 | 2013-07-10 | 航天科技控股集团股份有限公司 | 汽车仪表盘电子时钟精度调整方法 |
| JP6657699B2 (ja) * | 2015-09-16 | 2020-03-04 | セイコーエプソン株式会社 | 計時装置及び計時方法、並びに、電子機器 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3914931A (en) * | 1974-10-01 | 1975-10-28 | Suwa Seikosha Kk | Electronic timepiece |
-
1976
- 1976-04-23 CH CH511976D patent/CH511976A4/xx unknown
- 1976-04-23 CH CH511976A patent/CH604256B5/xx not_active IP Right Cessation
-
1977
- 1977-04-13 DE DE2716734A patent/DE2716734C3/de not_active Expired
- 1977-04-18 GB GB16054/77A patent/GB1570897A/en not_active Expired
- 1977-04-19 FR FR7711683A patent/FR2349161A1/fr active Granted
- 1977-04-20 US US05/789,199 patent/US4154053A/en not_active Expired - Lifetime
- 1977-04-23 JP JP52047271A patent/JPS6039191B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1570897A (en) | 1980-07-09 |
| FR2349161A1 (fr) | 1977-11-18 |
| DE2716734B2 (de) | 1981-06-11 |
| DE2716734C3 (de) | 1982-02-18 |
| JPS52130669A (en) | 1977-11-02 |
| US4154053A (en) | 1979-05-15 |
| CH604256B5 (xx) | 1978-08-31 |
| JPS6039191B2 (ja) | 1985-09-04 |
| FR2349161B1 (xx) | 1981-07-10 |
| DE2716734A1 (de) | 1977-10-27 |