JPS5673376A - Calendar mechanism of dial face system electronic time piece - Google Patents

Calendar mechanism of dial face system electronic time piece

Info

Publication number
JPS5673376A
JPS5673376A JP15087079A JP15087079A JPS5673376A JP S5673376 A JPS5673376 A JP S5673376A JP 15087079 A JP15087079 A JP 15087079A JP 15087079 A JP15087079 A JP 15087079A JP S5673376 A JPS5673376 A JP S5673376A
Authority
JP
Japan
Prior art keywords
counter
divide
ring row
counters
incremented
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
JP15087079A
Other languages
Japanese (ja)
Inventor
Mitsuo Iwadate
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 JP15087079A priority Critical patent/JPS5673376A/en
Publication of JPS5673376A publication Critical patent/JPS5673376A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication
    • G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently

Landscapes

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

Abstract

PURPOSE:To enable a calendar display without using a ring row by a method wherein a data indicating mechanism is actuated by means of a magnet excited by a frequency dividing signal. CONSTITUTION:When a 1sec signal from a frequency dividing circuit 2 enters a divide-by-60 counter 6 and a 60 is counted, then, a divide-by-60 counter 7 is incremented by one by means of the counter 6 and in the same way, in accordance with the 60 count in the counter 7, a divide-by-24 counter 8 is incremented by one. Accordingly, the output of counters 6, 7, 8 are inputted, as a result, an output of an NOR gate 9 is inverted to a high level every time 20hr elapse when the counters 6, 7 are reset and the counter 8 counts 24. With this, a transistor 18 is turned ON every 24hr elapsing by means of a pulse, the wave form of which is shaped through an AND gate 10. Then, magnetic cores 16, 17 are excited and a data indicator 11 mounted with permanent magnets 14, 15 are controlled by a data movement control lever 12 to rotate by a given angle, thus, enabling a calendar display without using a ring row for displaying hours, thereby lowering the load of the ring row.
JP15087079A 1979-11-21 1979-11-21 Calendar mechanism of dial face system electronic time piece Pending JPS5673376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15087079A JPS5673376A (en) 1979-11-21 1979-11-21 Calendar mechanism of dial face system electronic time piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15087079A JPS5673376A (en) 1979-11-21 1979-11-21 Calendar mechanism of dial face system electronic time piece

Publications (1)

Publication Number Publication Date
JPS5673376A true JPS5673376A (en) 1981-06-18

Family

ID=15506170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15087079A Pending JPS5673376A (en) 1979-11-21 1979-11-21 Calendar mechanism of dial face system electronic time piece

Country Status (1)

Country Link
JP (1) JPS5673376A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6766459B2 (en) 1999-12-27 2004-07-20 Seiko Epson Corporation Time keeping apparatus and method for controlling the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6766459B2 (en) 1999-12-27 2004-07-20 Seiko Epson Corporation Time keeping apparatus and method for controlling the same

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