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US4374622A Expired / Lapsed US ⏱️ 0.0 years remaining

Digital alarm timepiece with setting pointer

Assignee: Casio Computer Co Ltd
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Filing: 1980-01-23
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Granted: 1983-02-22
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Expires: 2000-01-23
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Abstract

Abstract An electronic timepiece has an optical display device for displaying time in digits and an alarm time indicator for setting an alarm time in terms of the position of a pointer. The position of the pointer is electronically detected and is applied as alarm time data to a time counting circuit. When current time is coincident with the alarm time set by the pointer, the alarm is given.

Inventors

  • 👤 Toshio Kashio

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:20
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16; G04C21/20; G04C21/205

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 252 words
An electronic timepiece comprising: current time counting means for always electronically counting current time data including data representing at least minutes and hours; optical display means coupled to said time counting means for always displaying the current time data counted by said time counting means; indicating means including sliding means for selectively setting one of a plurality of set times represented by a selected stop position of said sliding means; said current time counting means counting current time data independently of the setting of said indicating means, and said display means displaying said current time data for all settings of said indicating means; clock generating means coupled to said sliding means for detecting sliding of said sliding means and for generating clock signals responsive to the detected sliding; set time counting means coupled to said indicating means for obtaining set time data corresponding to the set time of said indicating means; coincidence means coupled to said set time counting means and to said current time counting means for detecting a coincidence between said set time data and said current time data counted by said current time counting means; sounding means coupled to said coincidence means and driven to generate a sound when said set time data is coincident with said current time data; and operating means coupled to said set time counting means and being selectively operable for presetting set time data corresponding to a set time of said indicating means into said current time counting means as initial current time data.
Claim 2
Dependent Claim 252 words
An electronic timepiece comprising: current time counting means for always electronically counting current time data including data representing at least minutes and hours; optical display means coupled to said time counting means for always displaying the current time data counted by said time counting means; indicating means including sliding means for selectively setting one of a plurality of set times represented by a selected stop position of said sliding means; said current time counting means counting current time data independently of the setting of said indicating means, and said display means displaying said current time data for all settings of said indicating means; clock generating means coupled to said sliding means for detecting sliding of said sliding means and for generating clock signals responsive to the detected sliding; set time counting means coupled to said indicating means for obtaining set time data corresponding to the set time of said indicating means; coincidence means coupled to said set time counting means and to said current time counting means for detecting a coincidence between said set time data and said current time data counted by said current time counting means; sounding means coupled to said coincidence means and driven to generate a sound when said set time data is coincident with said current time data; and operating means coupled to said set time counting means and being selectively operable for presetting set time data corresponding to a set time of said indicating means into said current time counting means as initial current time data.
Claim 3
Dependent Claim 29 words
The electronic timepiece of claim 1, wherein said time counting means ceaselessly counts current time data for use in displaying said current time data by said optical display means.
Claim 4
Dependent Claim 33 words
The electronic timepiece according to claim 1 wherein said detecting means comprises storage means for storing the time data corresponding to the set time represented by said stopped position of said sliding means.

References Cited (Backward Citations)

US3852952A Cited
US3775967A Cited
US4040248A Cited
US4196583A Cited
US4121415A Cited
US4246602A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-02-21 1986-08-23 1987-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-02-21 1990-08-23 1991-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-02-21 1994-08-23 1995-02-22 $7700.00 Window Closed / Lapsed

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