US3855782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-correcting device for electronic timepieces
Assignee: Suwa Seikosha KK
•
Filing: 1972-09-07
•
Granted: 1974-12-24
•
Expires: 1992-09-07
Abstract
Abstract An electronic timepiece is provided with a plurality of display elements for the digital display of time, driven by time-keeping circuitry. A time-correcting device coupled to said time-keeping circuitry is provided for independently correcting each of said display elements, said time-correcting device including a mechanical selector switch for selecting the display element to be corrected and a correction switch for performing the correction function on said display element.
Inventors
- 👤 I Nishimura
- 👤 T Ogata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:05
CPC Classifications
G; G04; G04G; G04G5/00; G04G5/04; G04G5/043; G04C; G04C3/00; G04C3/001; G04C3/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
An electronic timepiece comprising oscillator circuit means for producing a high-frequency time standard signal; multi-stage frequency divider circuit means for sequentially dividing said high-frequency time standard signal and producing low-frequency timekeeping signals at a selected group of said stages; display means including a plurality of display elements for the digital display of time; means for driving each of said display elements in response to one of said timekeeping signals; and timecorrecting means including a manually operable selector switch means connected to at least two of the divider stages producing said timekeeping signals for selecting one of said divider stages, and a secondary switch means manually operable independent of said selector switch means for selectively applying a time-correction signal through said selector switch means to the selected divider stage for correcting the display element associated with said selected divider stage.
Claim 2
Dependent Claim
139 words
An electronic timepiece comprising oscillator circuit means for producing a high-frequency time standard signal; multi-stage frequency divider circuit means for sequentially dividing said high-frequency time standard signal and producing low-frequency timekeeping signals at a selected group of said stages; display means including a plurality of display elements for the digital display of time; means for driving each of said display elements in response to one of said timekeeping signals; and timecorrecting means including a manually operable selector switch means connected to at least two of the divider stages producing said timekeeping signals for selecting one of said divider stages, and a secondary switch means manually operable independent of said selector switch means for selectively applying a time-correction signal through said selector switch means to the selected divider stage for correcting the display element associated with said selected divider stage.
Claim 3
Dependent Claim
16 words
An electronic timepiece as recited in claim 1, wherein said selector switch is a rotary switch.
Claim 4
Dependent Claim
16 words
An electronic timepiece as recited in claim 1, wherein said selector switch is a slide switch.
Claim 5
Dependent Claim
70 words
An electronic timepiece as recited in claim 3, including a watch case, said watch case being formed with a longitudinally extending slot; said selector switch means including a slide member mounted on said watch case for longitudinal displacement along said slot in response to manual manipulation by the user; said movable contact being mounted on said slide member, said fixed contacts being positioned in the path of said movable contact.
Claim 6
Dependent Claim
43 words
An electronic timepiece as recited in claim 4, wherein said movable contact is formed with a notch in the path of said fixed contacts, said fixed contacts being resiliently mounted for engagement in said notch when said movable contact is in registration therewith.
Claim 7
Dependent Claim
25 words
An electronic timepiece as recited in claim 1, wherein said selector switch means is coupled to each of the divider stages producing said timekeeping signals.
References Cited (Backward Citations)
US3576099A
Cited
US3699763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |