发明名称 Electronic timepiece having an adjustable rate of division and method for its manufacture
摘要 An internal correction circuit is provided to correct the timepiece error caused by the crystal oscillator frequency changes. The timepiece operates by frequency dividing the oscillator frequency to obtain a predetermined operating frequency. The correction circuit is operated by the user on any initialization point, such as the start of any minute from a reference time source to generate a first input signal. The user at any following minute of the reference time source generates a second input signal.
申请公布号 US4154053(A) 申请公布日期 1979.05.15
申请号 US19770789199 申请日期 1977.04.20
申请人 EBAUCHES S A 发明人 CHETELAT, FERNAND;ROCHAT, DANIEL
分类号 G04G3/02;G04G5/02;(IPC1-7):G04C3/00 主分类号 G04G3/02
代理机构 代理人
主权项
地址