GB1402679A - Electronic timepieces - Google Patents
Electronic timepiecesInfo
- Publication number
- GB1402679A GB1402679A GB2484873A GB2484873A GB1402679A GB 1402679 A GB1402679 A GB 1402679A GB 2484873 A GB2484873 A GB 2484873A GB 2484873 A GB2484873 A GB 2484873A GB 1402679 A GB1402679 A GB 1402679A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- circuit
- circuits
- battery
- relatively high
- Prior art date
- 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
- G04G99/00—Subject matter not provided for in other groups of this subclass
- G04G99/003—Pulse shaping; Amplification
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
- G04G19/02—Conversion or regulation of current or voltage
-
- 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)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Clocks (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/432,720 US3934399A (en) | 1972-06-12 | 1974-01-11 | Electric timepiece incorporating rectifier and driving circuits integrated in a single chip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47058476A JPS4919853A (US07534539-20090519-C00280.png) | 1972-06-12 | 1972-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1402679A true GB1402679A (en) | 1975-08-13 |
Family
ID=13085474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2484873A Expired GB1402679A (en) | 1972-06-12 | 1973-05-24 | Electronic timepieces |
Country Status (6)
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5666700U (US07534539-20090519-C00280.png) * | 1979-10-30 | 1981-06-03 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH532811A (fr) * | 1970-05-11 | 1972-08-31 | Manuf Des Montres Rolex S A Bi | Pièce d'horlogerie comprenant un dispositif d'affichage avec au moins une cellule à cristal liquide |
-
1972
- 1972-06-12 JP JP47058476A patent/JPS4919853A/ja active Pending
-
1973
- 1973-05-24 GB GB2484873A patent/GB1402679A/en not_active Expired
- 1973-06-12 FR FR7321241A patent/FR2188210B1/fr not_active Expired
- 1973-06-12 DE DE19732329875 patent/DE2329875B2/de not_active Withdrawn
-
1978
- 1978-01-19 HK HK3378A patent/HK3378A/xx unknown
- 1978-12-30 MY MY7800065A patent/MY7800065A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR2188210B1 (US07534539-20090519-C00280.png) | 1977-08-19 |
DE2329875B2 (de) | 1979-08-16 |
MY7800065A (en) | 1978-12-31 |
DE2329875A1 (de) | 1974-01-03 |
FR2188210A1 (US07534539-20090519-C00280.png) | 1974-01-18 |
HK3378A (en) | 1978-01-27 |
JPS4919853A (US07534539-20090519-C00280.png) | 1974-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19930523 |