FR2125580B1 - - Google Patents
Info
- Publication number
- FR2125580B1 FR2125580B1 FR7205486A FR7205486A FR2125580B1 FR 2125580 B1 FR2125580 B1 FR 2125580B1 FR 7205486 A FR7205486 A FR 7205486A FR 7205486 A FR7205486 A FR 7205486A FR 2125580 B1 FR2125580 B1 FR 2125580B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0023—Visual time or date indication means by light valves in general
- G04G9/0029—Details
- G04G9/0047—Details electrical, e.g. selection or application of the operating voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46007161 | 1971-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2125580A1 FR2125580A1 (fr) | 1972-09-29 |
| FR2125580B1 true FR2125580B1 (fr) | 1977-04-01 |
Family
ID=11658337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7205486A Expired FR2125580B1 (fr) | 1971-02-18 | 1972-02-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3828547A (fr) |
| DE (1) | DE2206102C2 (fr) |
| FR (1) | FR2125580B1 (fr) |
| GB (1) | GB1339402A (fr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2365581C3 (de) * | 1972-09-20 | 1979-01-18 | Citizen Watch Co., Ltd., Tokio | Spannungsvervielfachungsschaltung |
| JPS5751076B2 (fr) * | 1973-08-02 | 1982-10-30 | ||
| US4014165A (en) * | 1974-03-25 | 1977-03-29 | Texas Instruments Incorporated | DC-DC converter in watch system |
| JPS5159667A (fr) * | 1974-11-21 | 1976-05-24 | Suwa Seikosha Kk | |
| US3983690A (en) * | 1975-05-19 | 1976-10-05 | Mcsohmer Corporation | Digital timepiece having chronometric display |
| JPS51140642A (en) * | 1975-05-29 | 1976-12-03 | Seiko Epson Corp | Driving circuit |
| JPS52128100A (en) * | 1976-04-21 | 1977-10-27 | Toshiba Corp | Driver circuit |
| US4208869A (en) * | 1976-07-31 | 1980-06-24 | Citizen Watch Co., Ltd. | Illumination device for electronic timepiece |
| US4146876A (en) * | 1977-06-29 | 1979-03-27 | International Business Machines Corporation | Matrix addressed electrochromic display |
| JPS5643605A (en) * | 1979-09-18 | 1981-04-22 | Fujitsu Ltd | Photoswitch |
| US4593279A (en) * | 1981-12-24 | 1986-06-03 | Texas Instruments Incorporated | Low power liquid crystal display driver circuit |
| US4607176A (en) * | 1984-08-22 | 1986-08-19 | The United States Of America As Represented By The Secretary Of The Air Force | Tally cell circuit |
| US4866430A (en) * | 1986-12-11 | 1989-09-12 | Motorola, Inc. | Low voltage LED driver circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272997A (en) * | 1968-06-13 | 1972-05-03 | United States Time Corp | Horological electronic circuit |
| US3613351A (en) * | 1969-05-13 | 1971-10-19 | Hamilton Watch Co | Wristwatch with liquid crystal display |
| US3672155A (en) * | 1970-05-06 | 1972-06-27 | Hamilton Watch Co | Solid state watch |
| CH697470A4 (fr) * | 1970-05-11 | 1972-08-31 | ||
| CA906067A (en) * | 1970-05-14 | 1972-07-25 | E. Harris John | Crystal controlled electric clock |
| US3664118A (en) * | 1970-09-09 | 1972-05-23 | Hamilton Watch Co | Electronically controlled timepiece using low power mos transistor circuitry |
| JPS4711874A (fr) * | 1970-11-05 | 1972-06-14 | ||
| GB1343660A (en) * | 1970-12-29 | 1974-01-16 | Suwa Seikosha Kk | Timepiece |
-
1972
- 1972-01-19 GB GB255072A patent/GB1339402A/en not_active Expired
- 1972-02-04 US US00223666A patent/US3828547A/en not_active Expired - Lifetime
- 1972-02-09 DE DE2206102A patent/DE2206102C2/de not_active Expired
- 1972-02-18 FR FR7205486A patent/FR2125580B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2206102A1 (de) | 1972-08-31 |
| FR2125580A1 (fr) | 1972-09-29 |
| GB1339402A (en) | 1973-12-05 |
| US3828547A (en) | 1974-08-13 |
| DE2206102C2 (de) | 1983-03-24 |