Invention Grant
US07167417B2 Time correction system, time correction instruction device, pointer type timepiece, and time correction method
失效
时间校正系统,时间校正指示装置,指针式时计和时间校正方法
- Patent Title: Time correction system, time correction instruction device, pointer type timepiece, and time correction method
- Patent Title (中): 时间校正系统,时间校正指示装置,指针式时计和时间校正方法
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Application No.: US10752089Application Date: 2004-01-07
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Publication No.: US07167417B2Publication Date: 2007-01-23
- Inventor: Hidehiro Akahane , Osamu Takahashi
- Applicant: Hidehiro Akahane , Osamu Takahashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Global IP Couselors, LLP
- Priority: JP2003-191996 20030704
- Main IPC: G04C11/00
- IPC: G04C11/00 ; G06F1/04 ; G04B19/04

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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