JPS5491278A - Analog type electronic watch - Google Patents

Analog type electronic watch

Info

Publication number
JPS5491278A
JPS5491278A JP16083777A JP16083777A JPS5491278A JP S5491278 A JPS5491278 A JP S5491278A JP 16083777 A JP16083777 A JP 16083777A JP 16083777 A JP16083777 A JP 16083777A JP S5491278 A JPS5491278 A JP S5491278A
Authority
JP
Japan
Prior art keywords
circuit
hand
time difference
detecting
standard
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
JP16083777A
Other languages
Japanese (ja)
Inventor
Keiji Shimano
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 JP16083777A priority Critical patent/JPS5491278A/en
Publication of JPS5491278A publication Critical patent/JPS5491278A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/08—Setting the time according to the time information carried or implied by the radio signal the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal

Landscapes

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

Abstract

PURPOSE:To correct the hand position automatically, by providing an external standard signal receiving part, a hand position detecting part, and a time difference detecting circuit. CONSTITUTION:A standard signal receiving sensor 6, 0-second hand position sensor 7, a standard time receiving circuit 8, 0-second hand detecting circuit 9, and a time difference detecting circuit 10 are provided. The time difference detection circuit 10 counts the time difference of pulse signals sent from the 0-second hand detecting circuit 9 and standard time receiving circuit 8 on the basis of the reference pulse sent from a frequency dividing circuit 2 which divides the oscillation frequency of an oscillating circuit 1. According to the data of such counting, the drive signal generating circuit 3 is controlled, and driving of a pulse motor 5 driven by a driving circuit 4 is controlled, thereby correcting the second hand.
JP16083777A 1977-12-27 1977-12-27 Analog type electronic watch Pending JPS5491278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16083777A JPS5491278A (en) 1977-12-27 1977-12-27 Analog type electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16083777A JPS5491278A (en) 1977-12-27 1977-12-27 Analog type electronic watch

Publications (1)

Publication Number Publication Date
JPS5491278A true JPS5491278A (en) 1979-07-19

Family

ID=15723475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16083777A Pending JPS5491278A (en) 1977-12-27 1977-12-27 Analog type electronic watch

Country Status (1)

Country Link
JP (1) JPS5491278A (en)

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