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Patent Searching and Data


Title:
ELECTRONIC CLOCK
Document Type and Number:
Japanese Patent JP2002071843
Kind Code:
A
Abstract:

To correct deviation of a prescribed operating range in a timepiece provided with a hand reciprocating within the operating range.

A CPU quickly rotates a display needle to an initial position side by outputting reverse rotation pulses by a prescribed number to a step motor by prescribed timing (step S104) and corrects the initial position by newly recognizing the position. When a normal rotation pulse is outputted next time, rotational force is generated in a normal rotation direction in the step motor and reciprocating motion is started from the position.


Inventors:
SHINO YUICHI
SATODATE TAKAYUKI
Application Number:
JP2000260801A
Publication Date:
March 12, 2002
Filing Date:
August 30, 2000
Export Citation:
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Assignee:
SEIKO INSTR INC
International Classes:
A63H13/00; A63H29/00; G04B45/00; G04C3/00; G04C3/14; (IPC1-7): G04C3/14; A63H13/00; A63H29/00; G04B45/00; G04C3/00
Attorney, Agent or Firm:
Masaaki Sakagami