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Patent Searching and Data


Title:
ELECTRONIC TIME PIECE WITH TWO HANDS
Document Type and Number:
Japanese Patent JPS57190286
Kind Code:
A
Abstract:

PURPOSE: To obtain a time piece with two hands securing a long life of batteries with a simple construcion by starting a counter responsive to a quartz vibrator with the output of a first counter which is previously operated after the turning on of the power source by turning the stem.

CONSTITUTION: The power source turns on by turning the stem after adjustment of pointers. This is detected with a power source detector 10 which starts a high speed counter 11 to control a pointer driving step-motor 15. According to a specified counted number of a counter 11, AND gates 8 and 9 are separately closed or opened through FF13 and subsequently, a motor 15 is driven or controlled with a quartz vibrator 7 kept stable to perform a normal pointer operation. With such an arrangement, it is possible to cut the power source until the product is delivered to a user after the shipment thereby preventing the waste of power. Thus, the electronic time piece with two hands having a long life of batteries is obtained with a simple construction.


Inventors:
MIZUNO YUKIO
ITOU AKINORI
Application Number:
JP7604081A
Publication Date:
November 22, 1982
Filing Date:
May 20, 1981
Export Citation:
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Assignee:
RICOH WATCH
International Classes:
G04C3/14; G04C9/00; G04G21/00; (IPC1-7): G04C9/08