GB1522251A - Electronic timepiece - Google Patents
Electronic timepieceInfo
- Publication number
- GB1522251A GB1522251A GB42536/76A GB4253676A GB1522251A GB 1522251 A GB1522251 A GB 1522251A GB 42536/76 A GB42536/76 A GB 42536/76A GB 4253676 A GB4253676 A GB 4253676A GB 1522251 A GB1522251 A GB 1522251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- circuit
- switch
- oct
- transistor
- 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
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G13/00—Producing acoustic time signals
- G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
1522251 Electronic timepieces DAINI SEIKOSHA KK 13 Oct 1976 [20 Oct 1975] 42536/76 Heading G3T In an electronic timepiece a crystal controlled oscillator circuit 1 Fig. 2 is connected in series with a switching circuit 6 across the power supply battery, the circuit 6 being controlled by a manual switch 9. Thereby the oscillator can be switched off during storage or when resetting the timepiece to zero; also maloperation resulting from high contact resistance of switch 9 is minimized. As shown Fig. 3 the oscillator circuit comprises transistors 11, 12 and the switching circuit comprises a transistor 10 and a resistor 15, e.g. 10M#. When switch 9 is open the transistor 10 conducts and the oscillator circuit is active and vice-versa. When the oscillator is OFF the current consumption of the oscillator and divider is substantially zero since the divider receives no timing signal from the oscillator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50126084A JPS5250267A (en) | 1975-10-20 | 1975-10-20 | Electronic clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1522251A true GB1522251A (en) | 1978-08-23 |
Family
ID=14926196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42536/76A Expired GB1522251A (en) | 1975-10-20 | 1976-10-13 | Electronic timepiece |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5250267A (en) |
| DE (1) | DE2646668A1 (en) |
| FR (1) | FR2329004A1 (en) |
| GB (1) | GB1522251A (en) |
| HK (1) | HK19382A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0083336B1 (en) * | 1981-07-13 | 1986-11-05 | ADLER-NIETZHOLD, Brunhilde | Electronic apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828278A (en) * | 1973-07-13 | 1974-08-06 | Motorola Inc | Control circuit for disabling mos oscillator |
-
1975
- 1975-10-20 JP JP50126084A patent/JPS5250267A/en active Granted
-
1976
- 1976-10-13 GB GB42536/76A patent/GB1522251A/en not_active Expired
- 1976-10-15 DE DE19762646668 patent/DE2646668A1/en not_active Withdrawn
- 1976-10-15 FR FR7631095A patent/FR2329004A1/en active Granted
-
1982
- 1982-05-03 HK HK193/82A patent/HK19382A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5649314B2 (en) | 1981-11-20 |
| DE2646668A1 (en) | 1977-04-21 |
| JPS5250267A (en) | 1977-04-22 |
| FR2329004A1 (en) | 1977-05-20 |
| FR2329004B1 (en) | 1983-01-07 |
| HK19382A (en) | 1982-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19921013 |