JPS5357872A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5357872A
JPS5357872A JP13294176A JP13294176A JPS5357872A JP S5357872 A JPS5357872 A JP S5357872A JP 13294176 A JP13294176 A JP 13294176A JP 13294176 A JP13294176 A JP 13294176A JP S5357872 A JPS5357872 A JP S5357872A
Authority
JP
Japan
Prior art keywords
electronic watch
crystal oscillator
time
frequency
drividing
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
JP13294176A
Other languages
Japanese (ja)
Inventor
Yoshikazu Akaha
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP13294176A priority Critical patent/JPS5357872A/en
Publication of JPS5357872A publication Critical patent/JPS5357872A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To perform interruption to a frequency divider and correct the time errors produced by the aging of a crystal oscillator by detecting the lapse of time in a system of frequency-drividing the signal from the crystal oscillator.
JP13294176A 1976-11-05 1976-11-05 Electronic watch Pending JPS5357872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13294176A JPS5357872A (en) 1976-11-05 1976-11-05 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13294176A JPS5357872A (en) 1976-11-05 1976-11-05 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5357872A true JPS5357872A (en) 1978-05-25

Family

ID=15093067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13294176A Pending JPS5357872A (en) 1976-11-05 1976-11-05 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5357872A (en)

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