CH1667475A4 - - Google Patents
Info
- Publication number
- CH1667475A4 CH1667475A4 CH1667475D CH1667475D CH1667475A4 CH 1667475 A4 CH1667475 A4 CH 1667475A4 CH 1667475 D CH1667475 D CH 1667475D CH 1667475 D CH1667475 D CH 1667475D CH 1667475 A4 CH1667475 A4 CH 1667475A4
- 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
-
- 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
- G04D7/002—Electrical measuring and testing apparatus
- G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1667475A CH621027B5 (zh) | 1975-12-23 | 1975-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH1667475A4 true CH1667475A4 (zh) | 1977-08-31 |
Family
ID=4419275
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1667475D CH1667475A4 (zh) | 1975-12-23 | 1975-12-23 | |
| CH1667475A CH621027B5 (zh) | 1975-12-23 | 1975-12-23 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1667475A CH621027B5 (zh) | 1975-12-23 | 1975-12-23 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4081951A (zh) |
| JP (1) | JPS52113260A (zh) |
| CH (2) | CH1667475A4 (zh) |
| DE (1) | DE2657025C3 (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH625934B (fr) * | 1977-11-11 | Ebauches Electroniques Sa | Piece d'horlogerie electronique presentant une borne servant a l'entree et a la sortie de signaux. | |
| JPS552949A (en) * | 1978-06-22 | 1980-01-10 | Nec Corp | Pulse waveform generating circuit |
| JPS57144482A (en) * | 1981-03-03 | 1982-09-07 | Citizen Watch Co Ltd | Circuit for timepiece with load compensating function |
| CH658765GA3 (zh) * | 1984-04-03 | 1986-12-15 | ||
| KR920003128A (ko) * | 1990-07-31 | 1992-02-29 | 이헌조 | 시계용 기준 주파수 듀얼 선택 방법 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967442A (en) * | 1973-02-01 | 1976-07-06 | Berney Jean Claude | Electric watch having an electromechanical movement including a correction mechanism for small errors |
| BE802129A (fr) * | 1973-07-10 | 1973-11-05 | Suisse Horlogerie | Dispositif de mise a l'heure pour montre electronique |
| JPS551559B2 (zh) * | 1973-08-14 | 1980-01-14 | ||
| US3921384A (en) * | 1974-01-23 | 1975-11-25 | Hughes Aircraft Co | Digital watch having dual purpose ring counter |
| US4036006A (en) * | 1974-02-06 | 1977-07-19 | Gunther Glaser | Time-keeping apparatus |
| US4001553A (en) * | 1975-09-17 | 1977-01-04 | Rockwell International Corporation | Counter arrangement and associated test circuit for an electronic timing device |
-
1975
- 1975-12-23 CH CH1667475D patent/CH1667475A4/xx unknown
- 1975-12-23 CH CH1667475A patent/CH621027B5/fr not_active IP Right Cessation
-
1976
- 1976-12-16 DE DE2657025A patent/DE2657025C3/de not_active Expired
- 1976-12-20 US US05/752,429 patent/US4081951A/en not_active Expired - Lifetime
- 1976-12-23 JP JP15561176A patent/JPS52113260A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2657025A1 (de) | 1977-07-07 |
| DE2657025C3 (de) | 1985-10-24 |
| JPS52113260A (en) | 1977-09-22 |
| DE2657025B2 (de) | 1979-12-20 |
| CH621027B5 (zh) | 1981-01-15 |
| JPS6115388B2 (zh) | 1986-04-23 |
| US4081951A (en) | 1978-04-04 |