CH621675GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH621675GA3 CH621675GA3 CH1636775A CH1636775A CH621675GA3 CH 621675G A3 CH621675G A3 CH 621675GA3 CH 1636775 A CH1636775 A CH 1636775A CH 1636775 A CH1636775 A CH 1636775A CH 621675G A3 CH621675G A3 CH 621675GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- time
- correction
- counter circuits
- coupled
- correct
- Prior art date
Links
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Communication Control (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49144708A JPS5170676A (en)) | 1974-12-17 | 1974-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CH621675B CH621675B (de) | |
| CH621675GA3 true CH621675GA3 (en)) | 1981-02-27 |
Family
ID=15368428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1636775A CH621675B (de) | 1974-12-17 | 1975-12-17 | Elektronisches zeitmessgeraet. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4134254A (en)) |
| JP (1) | JPS5170676A (en)) |
| CH (1) | CH621675B (en)) |
| GB (1) | GB1524059A (en)) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717661A (en) * | 1994-12-20 | 1998-02-10 | Poulson; T. Earl | Method and apparatus for adjusting the accuracy of electronic timepieces |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH540520A (fr) * | 1971-04-22 | 1973-02-15 | Ebauches Sa | Mouvement d'horlogerie électronique |
| US3961472A (en) * | 1971-05-03 | 1976-06-08 | Ragen Semiconductor, Inc. | Solid state electronic timepiece |
| CH554015A (en)) * | 1971-10-15 | 1974-09-13 | ||
| JPS4857678A (en)) * | 1971-11-18 | 1973-08-13 | ||
| JPS585393B2 (ja) * | 1973-04-19 | 1983-01-31 | セイコーエプソン株式会社 | 電子時計 |
| JPS5751079B2 (en)) * | 1973-04-25 | 1982-10-30 |
-
1974
- 1974-12-17 JP JP49144708A patent/JPS5170676A/ja active Pending
-
1975
- 1975-12-16 US US05/641,308 patent/US4134254A/en not_active Expired - Lifetime
- 1975-12-16 GB GB51664/75A patent/GB1524059A/en not_active Expired
- 1975-12-17 CH CH1636775A patent/CH621675B/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US4134254A (en) | 1979-01-16 |
| CH621675B (de) | |
| JPS5170676A (en)) | 1976-06-18 |
| GB1524059A (en) | 1978-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |