CH624539GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH624539GA3 CH624539GA3 CH1476377A CH1476377A CH624539GA3 CH 624539G A3 CH624539G A3 CH 624539GA3 CH 1476377 A CH1476377 A CH 1476377A CH 1476377 A CH1476377 A CH 1476377A CH 624539G A3 CH624539G A3 CH 624539GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- rate
- counters
- variation
- timepiece
- logic devices
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C9/00—Electrically-actuated devices for setting the time-indicating means
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Abstract
An electronic timepiece comprising counters and logic devices, in which the counters are utilized to memorize a variation of rate of the timepiece with respect to a time reference in response to actuation of a control means, and in which the logic devices are controlled by signals delivered by the frequency divider chain and are arranged to periodically effect automatic correction of the variation of rate by an amount equivalent to the value memorized in the counters. The invention relates to a timepiece which permits the user to himself adjust the rate of his watch by means of a simple manipulation not requiring any complicated adjustment of electronic circuits, and which further performs an automatic correction of the variation of rate.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1476377A CH624539B (en) | 1977-12-02 | 1977-12-02 | ELECTRONIC WATCH PART WITH AUTOMATIC GAP CORRECTION. |
US05/963,992 US4386857A (en) | 1977-02-12 | 1978-11-27 | Electronic timepiece with automatic correction of the variation of rate |
DE2851223A DE2851223C3 (en) | 1977-12-02 | 1978-11-27 | Electronic timing device with automatic correction of the rate deviation |
JP14896478A JPS5499476A (en) | 1977-12-02 | 1978-12-01 | Electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1476377A CH624539B (en) | 1977-12-02 | 1977-12-02 | ELECTRONIC WATCH PART WITH AUTOMATIC GAP CORRECTION. |
Publications (2)
Publication Number | Publication Date |
---|---|
CH624539B CH624539B (en) | |
CH624539GA3 true CH624539GA3 (en) | 1981-08-14 |
Family
ID=4403642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1476377A CH624539B (en) | 1977-02-12 | 1977-12-02 | ELECTRONIC WATCH PART WITH AUTOMATIC GAP CORRECTION. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4386857A (en) |
JP (1) | JPS5499476A (en) |
CH (1) | CH624539B (en) |
DE (1) | DE2851223C3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3022949C2 (en) * | 1980-06-19 | 1983-11-17 | Werner 6802 Ladenburg Schulz | Process for the automatic correction of the rate deviation of a clock |
JPS5740675A (en) * | 1980-08-25 | 1982-03-06 | Seiko Instr & Electronics Ltd | Electronic watch |
US4565454A (en) * | 1982-10-07 | 1986-01-21 | Walters Richard J | Time display system |
US5918041A (en) * | 1997-11-26 | 1999-06-29 | International Business Machines Corporation | Method and apparatus for automatically adjusting a clock |
DE102004050242B4 (en) * | 2004-10-15 | 2006-07-27 | Heinz Rinderle | Time control for electronic clock e.g. wrist clock, has additional time measuring system which determines time deviations, where data for error correction is derived from deviation, and error correction is executed automatically |
US20090129208A1 (en) * | 2009-01-28 | 2009-05-21 | Weiss Kenneth P | Apparatus, system and method for keeping time |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH141873A4 (en) * | 1973-02-01 | 1974-06-14 | ||
JPS5168865A (en) * | 1974-12-11 | 1976-06-14 | Seiko Instr & Electronics | Denshidokei niokeru jikokushuseisochi |
JPS5547717B2 (en) * | 1975-03-08 | 1980-12-02 | ||
CH604256B5 (en) * | 1976-04-23 | 1978-08-31 | Ebauches Sa | |
CH512076A4 (en) * | 1976-04-23 | 1977-06-30 |
-
1977
- 1977-12-02 CH CH1476377A patent/CH624539B/en unknown
-
1978
- 1978-11-27 DE DE2851223A patent/DE2851223C3/en not_active Expired
- 1978-11-27 US US05/963,992 patent/US4386857A/en not_active Expired - Lifetime
- 1978-12-01 JP JP14896478A patent/JPS5499476A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CH624539B (en) | |
US4386857A (en) | 1983-06-07 |
DE2851223C3 (en) | 1984-05-17 |
JPS5499476A (en) | 1979-08-06 |
DE2851223A1 (en) | 1979-06-07 |
DE2851223B2 (en) | 1980-04-10 |
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