Patent ID: 7944777
Filing Date: 2011-05-17
Classification: G04C

Abstract:
1. An electronic watch including: an electric motor driving analogue display means; an electric power source supplying first and second distinct voltage levels: a case in which there are mounted: first and second output connections; a control circuit for the electric motor controlling the driving of the motor via the selective application of the first and second voltage levels to the first and second output connections; an external control actuator; a switch actuated by the external control actuator to selectively connect the first output connection to the second voltage level; wherein: the electric motor control circuit includes first and second three-state gates, said three-state gates being respectively connected to the first and second output connections, with a member selectively connecting the first output connection to the first voltage level; the electric motor control circuit includes a test mode wherein the first and second gates are brought to high impedance, the first output connection is connected to the first voltage level by said member, the output voltage at the first gate is measured, actuation of the external control actuator is determined as a function of the measured output voltage.