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US4121415A Expired / Lapsed US ⏱️ 0.0 years remaining

Hybrid horological display using time modulation

Assignee: Timex Group USA Inc
•
Filing: 1977-02-07
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Granted: 1978-10-24
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Expires: 1997-02-07
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Abstract

Abstract A solid state watch with electrooptic display employs digital indication of hours and 12 radial markers for indication of minutes. First and second markers are advanced as well as modulated in varying timed relationship with respect to one another, so as to give an indication of the degree of passage of time during 5 minute intervals.

Inventors

  • 👤 William C. Crutcher
  • 👤 Leo Wiesner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:57
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0082

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 184 words
In an electronic timepiece of the type having a time base, a countdown dividing circuit, and a decoder/driver actuating an electrooptic digit display for the hours, the improvement comprising a minutes display having 12 selectively actuatable marker radially disposed around the digits and located to indicate 5 minute time intervals when separately actuated, and a modulator/driver for selectively advancing and actuating first and second markers which alternate over timed intervals in varying timed relationship to one another, said modulator/driver having a first circuit for generating and successively advancing a first signal for one of the first markers, a second circuit for generating and successively advancing a second signal for one of the second markers, and means for alternately applying the first and second signals to said markers over changing periods of time during said interval so as to indicate the degree of passage of time during intervals, wherein a first marker is actuated during shorter and shorter periods during a portion of a five minute interval, and wherein a second marker is actuated at longer and longer periods over said portion of the interval.
Claim 2
Dependent Claim 184 words
In an electronic timepiece of the type having a time base, a countdown dividing circuit, and a decoder/driver actuating an electrooptic digit display for the hours, the improvement comprising a minutes display having 12 selectively actuatable marker radially disposed around the digits and located to indicate 5 minute time intervals when separately actuated, and a modulator/driver for selectively advancing and actuating first and second markers which alternate over timed intervals in varying timed relationship to one another, said modulator/driver having a first circuit for generating and successively advancing a first signal for one of the first markers, a second circuit for generating and successively advancing a second signal for one of the second markers, and means for alternately applying the first and second signals to said markers over changing periods of time during said interval so as to indicate the degree of passage of time during intervals, wherein a first marker is actuated during shorter and shorter periods during a portion of a five minute interval, and wherein a second marker is actuated at longer and longer periods over said portion of the interval.

References Cited (Backward Citations)

US3258906A Cited
US3276200A Cited
US3466498A Cited
US3630015A Cited
US3968639A Cited
US3955354A Cited
US3987617A Cited
US4007583A Cited
US4003197A Cited
US4030285A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-10-23 1982-04-24 1982-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-10-23 1986-04-24 1986-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-10-23 1990-04-24 1990-10-24 $7700.00 Window Closed / Lapsed

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