Patent US3937004A successfully refreshed from Google Patents.
US3937004A
Expired / Lapsed
US
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Portable miniature type information treating device
Assignee: Citizen Watch Co Ltd
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Filing: 1974-05-24
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Granted: 1976-02-10
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Expires: 1994-05-24
Abstract
Abstract An electronic timepiece, used as a pager watch, has a speaker for emitting an alarm sound at a preset time and also for reproducing an external call signal intercepted by a receiver for incoming electromagnetic waves. The receiver may be maintained normally inactive, being periodically activated for short time intervals under the control of a frequency divider in the output of a crystal oscillator serving to drive an electro-optical display. Sensors responsive to abnormal ambient conditions, e.g. temperature or blood pressure of the wearer, may also operate the speaker.
Inventors
- 👤 Minoru Natori
- 👤 Yasushi Nomura
- 👤 Fukuo Sekiya
- 👤 Shigeru Morokawa
- 👤 Akira Nakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:25
CPC Classifications
G; G04; G04G; G04G21/00; G04G21/02; G04G13/00; G04G13/02; G04G13/025; G04G9/00; G04G9/0064; G04G9/007; G04G9/08; G04G9/12; G04G9/126; G04R; G04R20/00; G06; G06F; G06F15/00; G06F15/02; G08; G08B; G08B5/00; G08B5/22; G08B5/222; G08B5/223; G08B5/224; G08B5/228; Y; Y10; Y10S; Y10S128/00; Y10S128/903
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
In a portable electronic timepiece, in combination: a crystal oscillator; frequency-dividing means connected to said oscillator; counting means stepped by said frequency-dividing means; code-conversion means connected to said counting means for generating time-indicating signals; electro-optical display means connected to said code-conversion means for energization by said time-indicating signals in a display recurrent cycle of at least 12 hours; normally deactivated receiving means for external signals; timing means controlled by said frequency-dividing means for periodically activating said receiving means several times during said display cycle for a limited time interval; and sound-emitting means responsive to external call signals upon activation of said receiving means by said timing means.
Claim 2
Dependent Claim
107 words
In a portable electronic timepiece, in combination: a crystal oscillator; frequency-dividing means connected to said oscillator; counting means stepped by said frequency-dividing means; code-conversion means connected to said counting means for generating time-indicating signals; electro-optical display means connected to said code-conversion means for energization by said time-indicating signals in a display recurrent cycle of at least 12 hours; normally deactivated receiving means for external signals; timing means controlled by said frequency-dividing means for periodically activating said receiving means several times during said display cycle for a limited time interval; and sound-emitting means responsive to external call signals upon activation of said receiving means by said timing means.
Claim 3
Dependent Claim
24 words
The combination defined in claim 1, further comprising resetting means for said counting means responsive to an external synchronizing signal from said receiving means.
Claim 4
Dependent Claim
30 words
The combination defined in claim 1, further comprising sensing means connected by way of said receiving means to said sound-emitting means for operating same upon detecting an abnormal ambient condition.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |