Portable miniature type information treating device
AssigneeCitizen Watch Co., Ltd.
InventorsMinoru Natori, Yasushi Nomura, Fukuo Sekiya, Shigeru Morokawa, Akira Nakai
Life of this patent
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Abstract
An electronic timepiece, used as a pager watch, has a speaker for emitting an alarm sound at a preset time and also for reproducing an external call signal intercepted by a receiver for incoming electromagnetic waves. The receiver may be maintained normally inactive, being periodically activated for short time intervals under the control of a frequency divider in the output of a crystal oscillator serving to drive an electro-optical display. Sensors responsive to abnormal ambient conditions, e.g. temperature or blood pressure of the wearer, may also operate the speaker.
Claims3
In a portable electronic timepiece, in combination:
- a crystal oscillator;
- frequency-dividing means connected to said oscillator;
- counting means stepped by said frequency-dividing means;
- code-conversion means connected to said counting means for generating time-indicating signals;
- electro-optical display means connected to said code-conversion means for energization by said time-indicating signals in a display recurrent cycle of at least 12 hours;
- normally deactivated receiving means for external signals;
- timing means controlled by said frequency-dividing means for periodically activating said receiving means several times during said display cycle for a limited time interval;
- and
- sound-emitting means responsive to external call signals upon activation of said receiving means by said timing means.
Dependencies are inferred from the claim text.