JPS541665A - Ic for watches - Google Patents

Ic for watches

Info

Publication number
JPS541665A
JPS541665A JP6584577A JP6584577A JPS541665A JP S541665 A JPS541665 A JP S541665A JP 6584577 A JP6584577 A JP 6584577A JP 6584577 A JP6584577 A JP 6584577A JP S541665 A JPS541665 A JP S541665A
Authority
JP
Japan
Prior art keywords
motor driving
controlling
pulse
state
waveform
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
JP6584577A
Other languages
Japanese (ja)
Inventor
Makoto Yoshida
Shingo Ichikawa
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP6584577A priority Critical patent/JPS541665A/en
Priority to GB25223/78A priority patent/GB1581917A/en
Priority to CH614978A priority patent/CH625666GA3/en
Publication of JPS541665A publication Critical patent/JPS541665A/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
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Abstract

PURPOSE:To decrease the pulse width of motor driving waveform and achieve the saving of current consumption by performing controlling of a waveform converting circuit for controlling pulse motor driving power depending upon the output state of a state detecting circuit or the set state of driving pulse control terminal.
JP6584577A 1977-06-06 1977-06-06 Ic for watches Pending JPS541665A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6584577A JPS541665A (en) 1977-06-06 1977-06-06 Ic for watches
GB25223/78A GB1581917A (en) 1977-06-06 1978-05-31 Integrated circuit for electronic timepiece
CH614978A CH625666GA3 (en) 1977-06-06 1978-06-05 Integrated circuit for an electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6584577A JPS541665A (en) 1977-06-06 1977-06-06 Ic for watches

Publications (1)

Publication Number Publication Date
JPS541665A true JPS541665A (en) 1979-01-08

Family

ID=13298744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6584577A Pending JPS541665A (en) 1977-06-06 1977-06-06 Ic for watches

Country Status (3)

Country Link
JP (1) JPS541665A (en)
CH (1) CH625666GA3 (en)
GB (1) GB1581917A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573317A (en) * 1985-03-11 1986-03-04 General Motors Corporation Diesel exhaust cleaner and regeneration burner system with indexing particulate trap
JPH0343517U (en) * 1989-09-07 1991-04-24

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE532113T1 (en) 2006-08-16 2011-11-15 Eta Sa Mft Horlogere Suisse ELECTRONIC CLOCK MOVEMENT WITH A RESONATOR
EP2784605A1 (en) * 2013-03-27 2014-10-01 ETA SA Manufacture Horlogère Suisse Thermocompensated chronometer circuit
CN104854519B (en) * 2012-12-21 2017-08-04 Eta瑞士钟表制造股份有限公司 Thermal compensation isochronon circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106076A (en) * 1973-12-21 1975-08-21
JPS5199077A (en) * 1975-02-26 1976-09-01 Seiko Instr & Electronics DENSHIDOKEINIOKERUKUDOSOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106076A (en) * 1973-12-21 1975-08-21
JPS5199077A (en) * 1975-02-26 1976-09-01 Seiko Instr & Electronics DENSHIDOKEINIOKERUKUDOSOCHI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573317A (en) * 1985-03-11 1986-03-04 General Motors Corporation Diesel exhaust cleaner and regeneration burner system with indexing particulate trap
JPH0343517U (en) * 1989-09-07 1991-04-24

Also Published As

Publication number Publication date
CH625666GA3 (en) 1981-10-15
CH625666B (en)
GB1581917A (en) 1980-12-31

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