JPS5536764A - Analog system electronic watch - Google Patents

Analog system electronic watch

Info

Publication number
JPS5536764A
JPS5536764A JP10992878A JP10992878A JPS5536764A JP S5536764 A JPS5536764 A JP S5536764A JP 10992878 A JP10992878 A JP 10992878A JP 10992878 A JP10992878 A JP 10992878A JP S5536764 A JPS5536764 A JP S5536764A
Authority
JP
Japan
Prior art keywords
motor
coil
condition
transistors
brought
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
JP10992878A
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 JP10992878A priority Critical patent/JPS5536764A/en
Publication of JPS5536764A publication Critical patent/JPS5536764A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Landscapes

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

Abstract

PURPOSE:To fulfill the function in a multipurpose shape, by forming a coil for driving a motor so that it can be used as an antenna for reception by bringing at least one of a buffer circuit for driving the step motor to an OPEN condition. CONSTITUTION:When there are no motor drive signals 11, a N channel MOS transistor 19 is also brought to an OFF condition because the output of a buffer circuit 15 becomes to a low level and a P channel MOS transistor 18 is under an OFF condition and a flip-flop 22 does not function, and a right end of a motor drive coil 20 is brought to an OPEN condition. In this case, specific electric waves can be received from a terminal 28 by means of a resonance circuit of the coil 20 and a condenser 21. When there are drive pulses 11, one side of the transistors 18, 19 is in ON, a motor is revolved, the ON conditions of the transistors 18, 19 are changed over by means of timer circuits 22, 24, 25, 26, 27, to which frequency dividing signals are input 23, and back electromotive force is attenuated.
JP10992878A 1978-09-07 1978-09-07 Analog system electronic watch Pending JPS5536764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10992878A JPS5536764A (en) 1978-09-07 1978-09-07 Analog system electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10992878A JPS5536764A (en) 1978-09-07 1978-09-07 Analog system electronic watch

Publications (1)

Publication Number Publication Date
JPS5536764A true JPS5536764A (en) 1980-03-14

Family

ID=14522657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10992878A Pending JPS5536764A (en) 1978-09-07 1978-09-07 Analog system electronic watch

Country Status (1)

Country Link
JP (1) JPS5536764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055902A1 (en) * 1997-06-05 1998-12-10 Citizen Watch Co., Ltd. Transmission-reception system for electronic clocks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055902A1 (en) * 1997-06-05 1998-12-10 Citizen Watch Co., Ltd. Transmission-reception system for electronic clocks
CN100338537C (en) * 1997-06-05 2007-09-19 西铁城钟表株式会社 Transmission-reception system for electronic clocks

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