GB1534557A - Electronic timepieces - Google Patents
Electronic timepiecesInfo
- Publication number
- GB1534557A GB1534557A GB46802/76A GB4680276A GB1534557A GB 1534557 A GB1534557 A GB 1534557A GB 46802/76 A GB46802/76 A GB 46802/76A GB 4680276 A GB4680276 A GB 4680276A GB 1534557 A GB1534557 A GB 1534557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counting means
- hour
- flip
- nov
- flop
- 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
- G04G9/00—Visual time or date indication means
- G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
- G04G9/087—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques provided with means for displaying at will a time indication or a date or a part thereof
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0076—Visual time or date indication means in which the time in another time-zone or in another city can be displayed at will
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Abstract
1534557 Electronic timepieces DAINI SEIKOSHA KK 10 Nov 1976 [11 Nov 1975] 46802/76 Heading G3T An electronic timepiece has facility for selectively indicating on the same set of digital display devices, the time in any one of two different time zones, the first (e.g. GMT) on a 12-hour clock basis and the second on a 24-hour clock basis. In Fig. 1 time counting means 3 includes a 12 hour counter 6 while counting means 7 includes a 24-hour counter 10. A selecting circuit 15 inlcudes a flip-flop (32) Fig. 4 (not shown) which is set and reset on alternate closures of a manual switch (29). The flip-flop outputs at 15A, 15B control respective sets of transmission gates (detailed Fig. 6 not shown) in secs, mins and hours gate circuits 12, 13, 14 to signal the contents of either one of the counting means 3, 7 to a decoderdriver 16 for display on a 7-segment type numeric display 17. A frequency divider 2 derives 1 Hz timing signals from the output of a crystal controlled oscillator. A circuit 11 (not described) is for setting.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50135566A JPS5258968A (en) | 1975-11-11 | 1975-11-11 | Electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1534557A true GB1534557A (en) | 1978-12-06 |
Family
ID=15154798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46802/76A Expired GB1534557A (en) | 1975-11-11 | 1976-11-10 | Electronic timepieces |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5258968A (en) |
| BR (1) | BR7607516A (en) |
| DE (1) | DE2650768A1 (en) |
| FR (1) | FR2331827A1 (en) |
| GB (1) | GB1534557A (en) |
| HK (1) | HK89379A (en) |
| IT (1) | IT1074948B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1073981B (en) * | 1975-11-17 | 1985-04-17 | Seiko Instr & Electronics | IMPROVEMENT IN ELECTRONIC CLOCKS |
| JP4710631B2 (en) | 2006-02-03 | 2011-06-29 | ブラザー工業株式会社 | Electronic device and printing device having clock function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646751A (en) * | 1969-12-05 | 1972-03-07 | Detection Sciences | Digital timing system |
| IT952097B (en) * | 1971-03-08 | 1973-07-20 | Suwa Seikosha Kk | IMPROVEMENT IN NUMERICAL INDICATION TIME MEASUREMENT SYSTEMS |
-
1975
- 1975-11-11 JP JP50135566A patent/JPS5258968A/en active Pending
-
1976
- 1976-11-05 DE DE19762650768 patent/DE2650768A1/en not_active Withdrawn
- 1976-11-08 IT IT52079/76A patent/IT1074948B/en active
- 1976-11-08 FR FR7633598A patent/FR2331827A1/en not_active Withdrawn
- 1976-11-10 GB GB46802/76A patent/GB1534557A/en not_active Expired
- 1976-11-10 BR BR7607516A patent/BR7607516A/en unknown
-
1979
- 1979-12-27 HK HK893/79A patent/HK89379A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HK89379A (en) | 1980-01-04 |
| IT1074948B (en) | 1985-04-22 |
| JPS5258968A (en) | 1977-05-14 |
| DE2650768A1 (en) | 1977-05-18 |
| BR7607516A (en) | 1977-09-20 |
| FR2331827A1 (en) | 1977-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |