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Time correction system, time correction instruction device, pointer type timepiece, and time correction method
   
Document Number
US Patent 7167417
Issued Date
January 23, 2007
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Abstract
A time correction system has a timepiece with pointers for displaying the time, and a correction instruction device. The correction instruction device has a timing section for timing reference time data, a time input section for inputting pointed time data corresponding to the time indicated by the pointers, a comparison section for comparing the reference time data and the pointed time data, and a communication section for outputting a correction instruction signal based on the results of this comparison to the pointer type timepiece. The pointer type timepiece has an external signal detection circuit for receiving the correction instruction signal, a drive control section for controlling the driving of the pointers, and a time correction control circuit for matching the readings of the pointers with the reference time data based on the received correction instruction signal.
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Number of Claims:
13
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Owner
Published
January 23, 2007
Application Number
10/752,089
Filed
January 7, 2004
US Classification
368/47   368/155 368/238
Int'l Classification
G04C   11/00   (20060101)   G04B   19/04   (20060101)   G06F   1/04   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Priority Data
Jul 04, 2003 [JP] 2003-191996
USPTO Field of Search
368/47   368/155   368/238   368/10   368/46   368/52  
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