CH638074GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH638074GA3 CH638074GA3 CH448881A CH448881A CH638074GA3 CH 638074G A3 CH638074G A3 CH 638074GA3 CH 448881 A CH448881 A CH 448881A CH 448881 A CH448881 A CH 448881A CH 638074G A3 CH638074G A3 CH 638074GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- group
- bias
- standard
- channel
- frequency signal
- Prior art date
Links
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
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
- 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
- G04G19/06—Regulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/40—Gating or clocking signals applied to all stages, i.e. synchronous counters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electromechanical Clocks (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
In an electronic timepiece having a primary frequency divider circuit coupled to receive a standard frequency signal and comprising a group of P-channel FETs and a group of N-channel FETs, a bias circuit supplies a bias input to the P-channel FET group and a separate bias input to the N-channel FET group. By providing these bias inputs through current mirror coupling from a standard current source, the response of the primary frequency divider circuit to low amplitudes of the standard frequency signal can be made substantially independent of timepiece battery voltage variations, over a wide range of battery voltages.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9286180A JPS5718130A (en) | 1980-07-08 | 1980-07-08 | Frequency dividing circuit |
| JP9642980A JPS5720677A (en) | 1980-07-15 | 1980-07-15 | Electronic clock with adjusting means of frequency divider and its adjusting method |
| JP9832580A JPS5723883A (en) | 1980-07-18 | 1980-07-18 | Electronic watch |
| JP9956780A JPS5724882A (en) | 1980-07-21 | 1980-07-21 | Electronic watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CH638074B CH638074B (en) | |
| CH638074GA3 true CH638074GA3 (en) | 1983-09-15 |
Family
ID=27468077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH448881A CH638074B (en) | 1980-07-08 | 1981-07-08 | ELECTRONIC WATCH WITH A PRIMARY FREQUENCY DIVIDER WITH IMPROVED RESPONSIBILITY AND METHOD OF OPERATING THE SAME. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4433920A (en) |
| CH (1) | CH638074B (en) |
| DE (1) | DE3126978A1 (en) |
| GB (1) | GB2081938B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586606A (en) * | 1981-07-03 | 1983-01-14 | Seiko Instr & Electronics Ltd | Generating circuit for low electric power reference pulse |
| JPH06105850B2 (en) * | 1984-12-12 | 1994-12-21 | 沖電気工業株式会社 | CMOS crystal oscillator circuit |
| NL8901401A (en) * | 1989-06-02 | 1991-01-02 | Philips Nv | PHOTOSENSITIVE SEMICONDUCTOR DEVICE. |
| JP2002164441A (en) * | 2000-11-27 | 2002-06-07 | Matsushita Electric Ind Co Ltd | High frequency switch circuit device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394821A (en) * | 1971-05-20 | 1975-05-21 | Smiths Industries Ltd | Electrical systems for producing oscillating signals |
| US3803828A (en) * | 1972-10-12 | 1974-04-16 | Timex Corp | Resistor trim for quartz oscillator |
| JPS528864A (en) | 1975-07-09 | 1977-01-24 | Seiko Instr & Electronics Ltd | Oscillator-frequency divider circuit with level shifter of electronic watch |
| JPS593897B2 (en) | 1975-07-25 | 1984-01-26 | シチズン時計株式会社 | Bunshiyu Cairo |
| JPS5240371A (en) | 1975-09-27 | 1977-03-29 | Citizen Watch Co Ltd | Electronic watch |
| JPS6019471B2 (en) | 1978-02-17 | 1985-05-16 | シチズン時計株式会社 | electronic clock |
| US4328572A (en) | 1979-08-14 | 1982-05-04 | Citizen Watch Company Limited | Voltage control system for electronic timepiece |
| US4333171A (en) | 1979-09-04 | 1982-06-01 | Citizen Watch Co., Ltd. | Electronic timepiece with diffusion resistor for compensating threshold variations |
| JPS5643605A (en) | 1979-09-18 | 1981-04-22 | Fujitsu Ltd | Photoswitch |
-
1981
- 1981-07-07 US US06/281,251 patent/US4433920A/en not_active Expired - Lifetime
- 1981-07-08 CH CH448881A patent/CH638074B/en not_active IP Right Cessation
- 1981-07-08 GB GB8121109A patent/GB2081938B/en not_active Expired
- 1981-07-08 DE DE19813126978 patent/DE3126978A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2081938A (en) | 1982-02-24 |
| CH638074B (en) | |
| US4433920A (en) | 1984-02-28 |
| GB2081938B (en) | 1984-01-04 |
| DE3126978A1 (en) | 1982-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR890004212B1 (en) | Complementary logic circuit | |
| GB2015206B (en) | Electronic timepiece | |
| GB1524129A (en) | Voltage level shift circuits | |
| SE324389B (en) | ||
| JPS577632A (en) | Electronic switch | |
| WO1986006539A3 (en) | Voltage multiplier circuit | |
| GB2066988B (en) | Frequency divider | |
| GB2081938B (en) | Electronic timepiece having improved primary frequency divider response characteristics | |
| JPS647814A (en) | C-mos current detecting amplifier, | |
| JPS5555621A (en) | Oscillator | |
| JPS5718130A (en) | Frequency dividing circuit | |
| DE3570936D1 (en) | Signalling circuit | |
| JPS55121511A (en) | Variation system for output voltage of power unit | |
| DE3369039D1 (en) | Integrated amplifier circuit | |
| JPS57183119A (en) | Schmitt circuit | |
| JPS5370746A (en) | Oscillator circuit | |
| CH651999GA3 (en) | Electronic reference-voltage generator circuit, voltage detector device employing this circuit | |
| JPS554103A (en) | Schmitt circuit | |
| JPS6468018A (en) | Output circuit | |
| JPS55162603A (en) | Crystal oscillation circuit | |
| JPS54136267A (en) | Data input circuit | |
| JPS5640322A (en) | Voltage synthesizer type tuner | |
| JPS52141162A (en) | Sample hold circuit | |
| JPS5511626A (en) | Voltage comparator circuit | |
| JPS57194634A (en) | Complementary circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |