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US4272836A Expired / Lapsed US ⏱️ 0.0 years remaining

Alarm timepiece

Assignee: Citizen Watch Co Ltd
•
Filing: 1979-01-09
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Granted: 1981-06-09
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Expires: 1999-01-09
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Abstract

Abstract An alarm timepiece is disclosed in which a plurality of alarm times may be set and the set alarm times may be displayed. The timepiece includes a plurality of alarm time memory means, alarm time display means connected to the alarm time memory means and control means for controlling the input signal for the alarm time memory means. The alarm time display means are circumferentially arranged in same manner as the time index of the watch dial, whereby set alarm time may be indicated in the display means.

Inventors

  • 👤 Munetaka Tamaru
  • 👤 Minoru Natori
  • 👤 Sizuo Yamaguchi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:47
CPC Classifications
G; G04; G04G; G04G13/00; G04G13/02; G04G13/026; G04G9/00; G04G9/0082; G04G9/08; G04G9/12; G04G9/124

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 155 words
An alarm timepiece comprising: time measurement means for calculating the actual time of day; time display means for displaying the actual time of day calculated by said time measurement means; alarm memory means for storing a plurality of alarm times; alarm display means for simultaneously displaying said plurality of alarm times, said alarm display means including a plurality of alarm display devices circumferentially arranged around said time display means and an index means for selectively addressing one of said plurality of alarm display devices, said alarm display means providing a continuous display of said plurality of alarm times; alarm control means for independently setting and resetting said plurality of alarm times; comparator means for comparing the actual time of day with each of said plurality of alarm times and producing a coincident signal when one of said plurality of alarm times equals said actual time of day; and alarm means responsive to said coincident signal.
Claim 2
Dependent Claim 155 words
An alarm timepiece comprising: time measurement means for calculating the actual time of day; time display means for displaying the actual time of day calculated by said time measurement means; alarm memory means for storing a plurality of alarm times; alarm display means for simultaneously displaying said plurality of alarm times, said alarm display means including a plurality of alarm display devices circumferentially arranged around said time display means and an index means for selectively addressing one of said plurality of alarm display devices, said alarm display means providing a continuous display of said plurality of alarm times; alarm control means for independently setting and resetting said plurality of alarm times; comparator means for comparing the actual time of day with each of said plurality of alarm times and producing a coincident signal when one of said plurality of alarm times equals said actual time of day; and alarm means responsive to said coincident signal.
Claim 3
Dependent Claim 36 words
An alarm timepiece according to claim 1 in which said time measurement means includes an oscilator, a frequency divider and a counting means, and said time display means comprises a decoder and an electro-optical display device.
Claim 4
Dependent Claim 20 words
An alarm timepiece according to claim 1 wherein each of said electrical display devices is a liquid crystal display device.
Claim 5
Dependent Claim 23 words
An alarm timepiece according to claim 1 wherein said alarm control means includes a shift register for sequentially operating said alarm memory means.
Claim 6
Dependent Claim 42 words
An alarm timepiece according to claim 4 wherein said alarm memory means includes hour memory means and minute memory means and said shift register includes a shift register for the hour memory means and a shift register for the minute memory means.
Claim 7
Dependent Claim 20 words
An alarm timepiece according to claim 1 wherein said alarm display means includes means for displaying A.M. and P.M. information.
Claim 8
Dependent Claim 18 words
An alarm timepiece according to claim 6 wherein said means for displaying A.M. and P.M. have different locations.
Claim 9
Dependent Claim 30 words
An alarm timepiece according to claim 1 wherein said alarm control means includes a switching means for connecting the output of said alarm memory means to said time display means.
Claim 10
Dependent Claim 41 words
An alarm timepiece according to claim 1 wherein said alarm memory means and said alarm display means are connected to said decoder, whereby each of said alarm times may be displayed on said time display means and said alarm display means.
Claim 11
Dependent Claim 81 words
An alarm display system for an electric timepiece having a actual time of day display, said display system comprising: storage means for storing a plurality of alarm times; a plurality of alarm display devices circumferentially arranged around the time of day display, said alarm display devices simultaneously and continuously indicating said plurality of alarm times stored in said storage means; and alarm control means for independently and selectively setting or resetting each of said alarm times stored in said storage means.
Claim 12
Dependent Claim 81 words
An alarm display system for an electric timepiece having a actual time of day display, said display system comprising: storage means for storing a plurality of alarm times; a plurality of alarm display devices circumferentially arranged around the time of day display, said alarm display devices simultaneously and continuously indicating said plurality of alarm times stored in said storage means; and alarm control means for independently and selectively setting or resetting each of said alarm times stored in said storage means.

References Cited (Backward Citations)

US3834153A Cited
US3982239A Cited
US4006585A Cited
US3987617A Cited
US3958409A Cited
US4040248A Cited
US4115993A Cited
US4077032A Cited
US4122660A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-06-08 1984-12-08 1985-06-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-06-08 1988-12-08 1989-06-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-06-08 1992-12-08 1993-06-09 $7700.00 Window Closed / Lapsed

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