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US4785432A Expired / Lapsed US ⏱️ 0.0 years remaining

Digital display timepiece

Assignee: Individual
•
Filing: 1987-10-27
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Granted: 1988-11-15
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Expires: 2007-10-27
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Abstract

Abstract A timepiece includes a variable color digital display for exhibiting a digital indication of time. A comparator and color control are provided for controlling the color of the digital indication in accordance with its relation to predetermined low and high time limits such that time before the low time limit is indicated in a first color, time after the high time limit is indicated in a second color, and time between the low and high time limits is indicated in a third color.

Inventors

  • 👤 Karel Havel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 15:56
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/02; G04G9/04

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 166 words
A method of simultaneously indicating a value of time and its relation to a predetermined low time limit and a predetermined high time limit, on a single variable color digital display means, by causing a digital indication of time to be exhibited on said display means, by, comparing said value of time with said low time limit and said high time limit to determine their relation, and by controlling the color of said digital indication in accordance with the relation of said value of time to said low time limit and said high time limit such that said digital indication is illuminated in a first color when said value of time is lower than said low time limit, in a second color when said value of time is higher than said high time limit, and a third color when said value of time is within the bounds of said low time limit and said high time limit, said first, second, and third colors being respectively different.
Claim 2
Independent Claim 166 words
A method of simultaneously indicating a value of time and its relation to a predetermined low time limit and a predetermined high time limit, on a single variable color digital display means, by causing a digital indication of time to be exhibited on said display means, by, comparing said value of time with said low time limit and said high time limit to determine their relation, and by controlling the color of said digital indication in accordance with the relation of said value of time to said low time limit and said high time limit such that said digital indication is illuminated in a first color when said value of time is lower than said low time limit, in a second color when said value of time is higher than said high time limit, and a third color when said value of time is within the bounds of said low time limit and said high time limit, said first, second, and third colors being respectively different.
Claim 3
Dependent Claim 100 words
A timepiece comprising: timekeeping means; variable color digital display means for providing a digital indication of a value of time; comparator means for effecting a comparison of said value of time with a predetermined low time limit and a predetermined high time limit, defining three time ranges, to determine in which time range said value of time lies, and for developing comparison signals accordingly; and color control means responsive to said comparison signals for causing said digital indication to illuminate in one of three respectively different colors in accordance with the time range in which said value of time lies.
Claim 4
Dependent Claim 100 words
A timepiece comprising: timekeeping means; variable color digital display means for providing a digital indication of a value of time; comparator means for effecting a comparison of said value of time with a predetermined low time limit and a predetermined high time limit, defining three time ranges, to determine in which time range said value of time lies, and for developing comparison signals accordingly; and color control means responsive to said comparison signals for causing said digital indication to illuminate in one of three respectively different colors in accordance with the time range in which said value of time lies.
Claim 5
Dependent Claim 176 words
A timepiece comprising: timekeeping means; variable color digital display means for providing a digital indication of a value of time; comparator means for effecting a comparison of said value of time with a predetermined low time limit and a predetermined high time limit, defining three time ranges, to determine in which time range said value of time lies, and for developing a first comparison signal for said value of time being lower than said low time limit, a second comparison signal for said value of time being higher than said high time limit, and a third comparison signal for said value of time being within the bounds of said low time limit and said high time limit; and color control means responsive to said comparison signals for causing said digital indication to illuminate in a first color in response to said first comparison signal, in a second color in response to said second comparison signal, and in a third color in response to said third comparison signals, said first, second, and third colors being respectively different.
Claim 6
Dependent Claim 176 words
A timepiece comprising: timekeeping means; variable color digital display means for providing a digital indication of a value of time; comparator means for effecting a comparison of said value of time with a predetermined low time limit and a predetermined high time limit, defining three time ranges, to determine in which time range said value of time lies, and for developing a first comparison signal for said value of time being lower than said low time limit, a second comparison signal for said value of time being higher than said high time limit, and a third comparison signal for said value of time being within the bounds of said low time limit and said high time limit; and color control means responsive to said comparison signals for causing said digital indication to illuminate in a first color in response to said first comparison signal, in a second color in response to said second comparison signal, and in a third color in response to said third comparison signals, said first, second, and third colors being respectively different.

References Cited (Backward Citations)

US4044546A Cited
JPS55107984A Cited
US4705406A Cited
US4702615A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-11-15 1992-05-16 1992-11-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-11-15 1996-05-16 1996-11-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-11-15 2000-05-16 2000-11-15 $7700.00 Window Closed / Lapsed

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