Patent ID: 6584040
Filing Date: 2003-06-24
Classification: G04C

Abstract:
An electronic timepiece comprising:a transmission wheel; a wheel train for rotating the transmission wheel; a contact point spring comprised of a conductive material and connected to the transmission wheel for rotation therewith; a printed circuit board having a first detection pattern and a second detection pattern each for contacting the contact point spring during rotation thereof so that in a first detection state only the first detection pattern generates a rotational position detection signal for detecting a rotational position of the transmission wheel, in a second detection state only the second detection pattern generates a rotational position detection signal for detecting a rotational position of the transmission wheel, and in a third detection state both the first and the second detection patterns simultaneously generate rotational position detection signals each for detecting a rotational position of the transmission wheel; and a control circuit for determining a case where the third detection state has occurred immediately after the first detection state has been detected and a case where the third detection state has occurred immediately after the second detection state has been detected by distinguishing between the two cases.