Patent ID: 6072752
Filing Date: 2000-06-06
Classification: G04C

Abstract:
A hand display electronic timepiece having a battery cell serving as a power source, comprising:time signal generating means;a pulse motor connected to drive hands of the hand display;means for driving the pulse motor;means for controlling the pulse motor driving means;volatile hand position data generating means for generating volatile hand position data corresponding to the position of said hands, the drive control of the hands being executed according to the generated hand position data;hand drive stop means, when operated, for stopping said hands and said hand position data generating means under a condition in which synchronism is maintained therebetween;a non-volatile memory for storing the generated hand position data;hand drive data control means for controlling at least said non-volatile memory and said hand drive stop means; anddata storage instruction means for generating a storage instruction signal to operate the hand drive data control means, the hand drive data control means being responsive to the storage instruction signal to write the volatile hand position data into the non-volatile memory by activating an installed booster circuit, to operate the hand drive stop means and further to erase the data in said non-volatile memory by activating the installed booster circuit.