Title: Electronic timepiece with calendar function and control method for same
Application Number: 200510008515 Application Date: 2005.02.18
Publication Number: 1658094 Publication Date: 2005.08.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G04C3/14,G04B19/24
Applicant(s) Name: Seiko Epson Corp. Address:
Inventor(s) Name: Tamura Shuichi, Kitahara Joji
Attorney & Agent: quan xianqi
Abstract:
     An electronic timepiece with a calendar display function that drives a piezo-electric actuator to drive a rotation of a piezo-electric rotor, and stops the drive of the piezo-electric actuator when the amount of the piezo-electric rotor advances is detected by a spring switch. Photoreflectors are used for day detection accomplished using gears having a small speed reduction ratio relative to the piezo-electric rotor, and spring switches are used in month detection and year detection.
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