JPS5759191A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
JPS5759191A
JPS5759191A JP13282480A JP13282480A JPS5759191A JP S5759191 A JPS5759191 A JP S5759191A JP 13282480 A JP13282480 A JP 13282480A JP 13282480 A JP13282480 A JP 13282480A JP S5759191 A JPS5759191 A JP S5759191A
Authority
JP
Japan
Prior art keywords
frequency
rom26
error correction
improve
vibrator
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
JP13282480A
Other languages
Japanese (ja)
Inventor
Takeshi Sasaki
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP13282480A priority Critical patent/JPS5759191A/en
Publication of JPS5759191A publication Critical patent/JPS5759191A/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

Abstract

PURPOSE:To improve the accurcy of a titled timepiece without the influence of temp. environments and improve the mass productivity of the watch by storing beforehand the output frequency errors of a quartz vibrator by areas. CONSTITUTION:An oscillating circuit 11 having a quartz vibrator 11a, means 12 and 15 dividing down the oscillation frequency, a means 14 of adjusting the frequency dividing ratios and a means 10 displaying the time in accordance with the adjusted frequency-divided outputs are provided. An ROM26 storing the rates of error correction corresponding to the tmep. change of the vibrator 11a by plural areas and a counter 23 selectively assigning one of the plural areas are provided to the means 14, so that the rate of the error correction of the selected and assigned area is read out from the ROM26 and the frequency dividing ratios are adjusted by this.
JP13282480A 1980-09-26 1980-09-26 Electronic timepiece Pending JPS5759191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13282480A JPS5759191A (en) 1980-09-26 1980-09-26 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13282480A JPS5759191A (en) 1980-09-26 1980-09-26 Electronic timepiece

Publications (1)

Publication Number Publication Date
JPS5759191A true JPS5759191A (en) 1982-04-09

Family

ID=15090404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13282480A Pending JPS5759191A (en) 1980-09-26 1980-09-26 Electronic timepiece

Country Status (1)

Country Link
JP (1) JPS5759191A (en)

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