Title:
ANALOG TIMEPIECE DEVICE
Document Type and Number:
Japanese Patent JP2577839
Kind Code:
B2
Abstract:
PURPOSE: To enable an efficiency of use of a motor as a multifunctional watch to be increased in an analog timepiece for driving a minute needle and a second needle individually with two motors which can be rotate in the normal and reverse directions.
CONSTITUTION: A current time storage means 61 which counts a reference signal and then stores a time which is obtained by a timing means 43, a conversion means 45 which converts a content which is stored by the current time storage means 61 to an angle of a needle, a target position storage means 71 for storing the operation result as a target value, and a display position storage means 75 for storing an indication value which is shown by a display position of the needle are provided. Then, an operation drive means 47 which outputs an step-advance signal to a pulse motor for driving needle in a display means 90 until the target value matches the display value is provided.
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| JPS5436972 | ELECTRONIC WATCH |
| JPS5582081 | SYNCHRONISM SYSTEM OF WATCH HAVING DUAL DISPLAY |
Inventors:
KATO IKUO
Application Number:
JP25521791A
Publication Date:
February 05, 1997
Filing Date:
October 02, 1991
Export Citation:
Assignee:
RHYTHM WATCH CO
International Classes:
G04C3/14; G04C3/00; (IPC1-7): G04C3/14; G04C3/00
Domestic Patent References:
| JP6474493A | ||||
| JP649393A | ||||
| JP62277590A | ||||
| JP462496A | ||||
| JP5100057A | ||||
| JP57206881A |
Attorney, Agent or Firm:
Hitoshi Kitamura (2 outside)