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专利名称：Automatically correcting electronic
timepiece for selected signal receivingwireless receiver
发明人：Yoshiki Minowa,Yukio Yokozawa申请号：US08/218871申请日：19940328公开号：US05422863A公开日：19950606
摘要：An electronic timepiece which corrects time automatically in response toexternal time information signals. The timepiece includes a first timekeeping circuit forkeeping a standard time and a receiver for selectively receiving external signals. Achecking circuit checks the external signal to determine whether it contains a timeinformation signal and which provides a current time signal in response to receipt of atime information signal. A second timekeeping circuit receives and stores the current timesignal and a setting circuit sets the second timekeeping circuit to the current time inaccordance with the current time signal. A correction circuit provides a correction signaland corrects the first timekeeping circuit to the current time in accordance with thecorrection signal and the current time signal. The correction is applied periodically at arate which is a function of the error and the time between sucessive reciepts of the timeinformation signal.
申请人：SEIKO EPSON CORPORATION
代理机构：Stroock & Stroock & Lavan
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