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US 4,707,141 AGranted
Variable color analog timepiece
OwnerKarel Havelinventor
Life of this patent
Estimating the term…
Abstract
A timepiece includes a variable color display for providing an analog indication of time and a transducer for measuring values of a diverse quantity. The color of the analog indication may be controlled in a plurality of steps in accordance with the output of the transducer.
Claims7
A timepiece comprising:
- timekeeping means;
- variable color analog display means for providing an analog indication of time;
- means for measuring a diverse quantity and for developing output signals related thereto;
- and
- color control means responsive to said output signals for controlling the color of said indication in accordance with said diverse quantity.
2 more elements
A timepiece comprising:
- timekeeping means;
- variable color analog display means for providing an analog indication of time;
- temperature transducer means for measuring temperature and for developing output electrical signals related thereto;
- and
- color control means responsive to said output electrical signals for controlling the color of said indication in accordance with the values of temperature.
2 more elements
A timepiece comprising:
- timekeeping means;
- variable color analog display means for providing an analog indication of time;
- means for measuring a diverse quantity and for developing output signals related thereto;
- comparator means for effecting a comparison of said output signals with predetermined limits, to determine the range in which the measured value of said diverse quantity lies, and for developing comparison signals accordingly;
- and
- color control means responsive to said comparison signals for controlling the color of said indication in accordance with the range in which the measured value of said divrse quantity lies.
3 more elements
A timepiece comprising:
- timekeeping means;
- variable color analog display means for providing an analog indication of time;
- temperature transducer means for measuring temperature and for developing output electrical signals related thereto;
- comparator means for effecting a comparison of said output electrical signals with predetermined limits, to determine the range in which the measured value of temperature lies, and for developing comparison signals accordingly;
- and
- color control means responsive to said comparison signals for controlling the color of said indication in accordance with the range in which the measured value of temperature lies.
3 more elements
Dependencies are inferred from the claim text.