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Title:
ANALOG ELECTRONIC WATCH
Document Type and Number:
WIPO Patent Application WO/2007/102412
Kind Code:
A1
Abstract:
An analo electronic watch is comprised of a display unit (2) for displaying a time by its hands, a step motor (3) for driving the hands, a motor driving unit (4) for controlling and driving the step motor at a prescribed hand driving interval in an ordinary case, a hand position detecting means for detecting positions of the hands, a hand position detecting means control unit (6) for intermittently controlling and driving the hand position detecting means (5) at a first detecting period, which is longer than the hand driving period, and a detecting period changing unit (7) for instructing the hand position detecting means (5) of changing the detecting period. When the detecting period changing unit (7) detects a detecting period changing condition, while the hand driving period for the step motor (3) is maintained, the detecting period changing unit (7) changes the hand position detecting period of the hand position detecting means (5) from the first detecting period to a second detecting period.

Inventors:
FUJII, Teruhiko (1-12, Tanashicho 6-chom, Nishitokyo-shi Tokyo 11, 1888511, JP)
藤井 輝彦 (〒11 東京都西東京市田無町六丁目1番12号 シチズンホ-ルディングス株式会社内 Tokyo, 1888511, JP)
KITAZAWA, Isao (1-12, Tanashicho 6-chom, Nishitokyo-shi Tokyo 11, 1888511, JP)
北澤 勲 (〒11 東京都西東京市田無町六丁目1番12号 シチズンホ-ルディングス株式会社内 Tokyo, 1888511, JP)
NAMEKAWA, Masaaki (1-12, Tanashicho 6-chom, Nishitokyo-shi Tokyo 11, 1888511, JP)
行川 昌昭 (〒11 東京都西東京市田無町六丁目1番12号 シチズンホ-ルディングス株式会社内 Tokyo, 1888511, JP)
Application Number:
JP2007/053994
Publication Date:
September 13, 2007
Filing Date:
March 02, 2007
Export Citation:
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Assignee:
CITIZEN HOLDINGS CO., LTD. (1-12, Tanashicho 6-chome Nishitokyo-shi, Tokyo 11, 1888511, JP)
シチズンホ-ルディングス株式会社 (〒11 東京都西東京市田無町六丁目1番12号 Tokyo, 1888511, JP)
FUJII, Teruhiko (1-12, Tanashicho 6-chom, Nishitokyo-shi Tokyo 11, 1888511, JP)
藤井 輝彦 (〒11 東京都西東京市田無町六丁目1番12号 シチズンホ-ルディングス株式会社内 Tokyo, 1888511, JP)
KITAZAWA, Isao (1-12, Tanashicho 6-chom, Nishitokyo-shi Tokyo 11, 1888511, JP)
北澤 勲 (〒11 東京都西東京市田無町六丁目1番12号 シチズンホ-ルディングス株式会社内 Tokyo, 1888511, JP)
NAMEKAWA, Masaaki (1-12, Tanashicho 6-chom, Nishitokyo-shi Tokyo 11, 1888511, JP)
International Classes:
G04C3/00; G04C9/08
Attorney, Agent or Firm:
NISHIWAKI, Tamio (Asahi Bldg. 7F, 6-7 Ginza 6-chom, Chuo-ku Tokyo 61, 1040061, JP)
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