JPS5485775A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5485775A
JPS5485775A JP15396277A JP15396277A JPS5485775A JP S5485775 A JPS5485775 A JP S5485775A JP 15396277 A JP15396277 A JP 15396277A JP 15396277 A JP15396277 A JP 15396277A JP S5485775 A JPS5485775 A JP S5485775A
Authority
JP
Japan
Prior art keywords
time
frequency
reset
error
frequency dividing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15396277A
Other languages
Japanese (ja)
Inventor
Junpei Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP15396277A priority Critical patent/JPS5485775A/en
Publication of JPS5485775A publication Critical patent/JPS5485775A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To eliminate obstracles for high precision designing such as frequency diviation due to aging of resonator and part of frequency fluctuations due to temperature changes, by correcting the second pulse output besides normallizing the time with the time announcement signal.
CONSTITUTION: At the onset of time announcement signal, namely, at the just time, the second and minute counter parts of watch part 6 and a frequency dividing part 5 are reset, and the time error is normalized. At this time, the errors at each stage of second and minute counters and frequency dividing part 8 with respect to the just time are detected in a detecting part 10, and when the output from the detecting part 3 is obtained, the errors, time announcement, and the time information with respect to the previous time announcement are sent into an arithmetic part 11 to be converted into frequency divided error in one second, for instance, then a reset pulse width corresponding to the error is provided at a control part 9 to reset the frequency dividing part. Thus, the second pulse or pluse interval is corrected, so that correct 1-second period may be sent out.
COPYRIGHT: (C)1979,JPO&Japio
JP15396277A 1977-12-20 1977-12-20 Electronic watch Pending JPS5485775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15396277A JPS5485775A (en) 1977-12-20 1977-12-20 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15396277A JPS5485775A (en) 1977-12-20 1977-12-20 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5485775A true JPS5485775A (en) 1979-07-07

Family

ID=15573865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15396277A Pending JPS5485775A (en) 1977-12-20 1977-12-20 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5485775A (en)

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