US3982387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state electronic timepiece
Assignee: Seiko Instruments Inc
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Filing: 1974-12-24
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Granted: 1976-09-28
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Expires: 1994-12-24
Abstract
Abstract A solid state electronic timepiece has a second time display section comprised of a plurality of second display elements disposed on the surface of the watch face. The display elements are energized in sequence in a certain time interval so that the elapsed time is recognized by watching the sequential shift of the display pattern in combination with flashing, continuous lighting and lights out modes of energization of the second display elements.
Inventors
- 👤 Kojiro Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:41
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
In an electronic timepiece: an oscillator for producing a high frequency time signal suitable as a time standard; means receptive of the time signal for dividing it into at least hour, minute and second drive signals; time display means receptive of the hour and minute drive signals for displaying the time in hours and minutes; and second display means receptive of the second drive signal for continuously displaying an indication of the time in seconds, said second display means comprising six energizable display elements operable when energized to provide a light output, and circuit means responsive to the second drive signal for repeatedly and sequentially energizing said six display elements at ten-second intervals to effet flashing of each display element at one-second increments for a period of ten seconds to obtain a repeating succession of flashing light outputs at one-second increments thereby displaying a continuous indication of the time in seconds.
Claim 2
Dependent Claim
151 words
In an electronic timepiece: an oscillator for producing a high frequency time signal suitable as a time standard; means receptive of the time signal for dividing it into at least hour, minute and second drive signals; time display means receptive of the hour and minute drive signals for displaying the time in hours and minutes; and second display means receptive of the second drive signal for continuously displaying an indication of the time in seconds, said second display means comprising six energizable display elements operable when energized to provide a light output, and circuit means responsive to the second drive signal for repeatedly and sequentially energizing said six display elements at ten-second intervals to effet flashing of each display element at one-second increments for a period of ten seconds to obtain a repeating succession of flashing light outputs at one-second increments thereby displaying a continuous indication of the time in seconds.
Claim 3
Dependent Claim
58 words
An electronic timepiece according to claim 1; wherein said circuit means includes means operable during every sixty second period for maintaining five of said display elements continuously energized so that each provides a continuous light output upon completion of its ten second flashing light output to thereby indicate during every sixty-second period the elapse of successive ten-second intervals.
Claim 4
Dependent Claim
38 words
An electronic timepiece according to claim 1; wherein said time display means comprises hour and minute display sections, and a pair of point display elements disposed between said hour and minute display sections for distinguishing AM and PM.
Claim 5
Dependent Claim
44 words
An electronic timepiece according to claim 1; wherein said circuit means includes means operable during every 60-second period for maintaining said display elements continuously energized so that each provides a continuous light output during the time it is not providing a flashing light output.
Claim 6
Dependent Claim
38 words
An electronic timepiece according to claim 4; wherein said time display means comprises hour and minute display sections, and a pair of point display elements disposed between said hour and minute display sections for distinguishing AM and PM.
Claim 7
Dependent Claim
148 words
In an electronic timepiece: an oscillator for producing a high frequency time signal suitable as a time standard; means receptive of the time signal for dividing it into at least hour, minute and second drive signals; time display means receptive of the hour and minute drive signals for displaying the time in hours and minutes; and second display means receptive of the second drive signal for continuously displaying an indication of the time in seconds, said second display means comprising six energizable display elements operable when energized to provide a light output, and circuit means responsive to the second drive signal for repeatedly and sequentially energizing said six display elements at 10-second intervals during each 60-second period such that said display elements sequentially provide a continuous light output for 10 seconds and thereafter provide a flashing light output at 1-second increments for the remainder of the 60-second period.
Claim 8
Dependent Claim
148 words
In an electronic timepiece: an oscillator for producing a high frequency time signal suitable as a time standard; means receptive of the time signal for dividing it into at least hour, minute and second drive signals; time display means receptive of the hour and minute drive signals for displaying the time in hours and minutes; and second display means receptive of the second drive signal for continuously displaying an indication of the time in seconds, said second display means comprising six energizable display elements operable when energized to provide a light output, and circuit means responsive to the second drive signal for repeatedly and sequentially energizing said six display elements at 10-second intervals during each 60-second period such that said display elements sequentially provide a continuous light output for 10 seconds and thereafter provide a flashing light output at 1-second increments for the remainder of the 60-second period.
Claim 9
Dependent Claim
137 words
In an electronic timepiece: an oscillator for producing a high frequency time signal suitable as a time standard; means receptive of the time signal for dividing it into at least hour, minute and second drive signals; time display means receptive of the hour and minute drive signals for displaying the time in hours and minutes; and second display means receptive of the second drive signal for continuously displaying an indication of the time in seconds, said second display means comprising six energizable display elements operable when energized to provide a light output, and circuit means responsive to the second drive signal for repeatedly and sequentially energizing said six display elements at 10-second intervals such that said display elements sequentially provide a continuous light output for 10 seconds and otherwise provide a flashing light output at 1-second increments.
Claim 10
Dependent Claim
137 words
In an electronic timepiece: an oscillator for producing a high frequency time signal suitable as a time standard; means receptive of the time signal for dividing it into at least hour, minute and second drive signals; time display means receptive of the hour and minute drive signals for displaying the time in hours and minutes; and second display means receptive of the second drive signal for continuously displaying an indication of the time in seconds, said second display means comprising six energizable display elements operable when energized to provide a light output, and circuit means responsive to the second drive signal for repeatedly and sequentially energizing said six display elements at 10-second intervals such that said display elements sequentially provide a continuous light output for 10 seconds and otherwise provide a flashing light output at 1-second increments.
Claim 11
Dependent Claim
38 words
An electronic timepiece according to claim 7; wherein said time display means comprises hour and minute display sections, and a pair of point display elements disposed between said hour and minute display sections for distinguishing AM and PM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |