JPS54109874A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS54109874A
JPS54109874A JP1689778A JP1689778A JPS54109874A JP S54109874 A JPS54109874 A JP S54109874A JP 1689778 A JP1689778 A JP 1689778A JP 1689778 A JP1689778 A JP 1689778A JP S54109874 A JPS54109874 A JP S54109874A
Authority
JP
Japan
Prior art keywords
switch
signal
flop
transfer
operating member
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
JP1689778A
Other languages
Japanese (ja)
Inventor
Fukuo Sekiya
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 JP1689778A priority Critical patent/JPS54109874A/en
Priority to US06/010,350 priority patent/US4257114A/en
Priority to CH157679A priority patent/CH639526GA3/en
Publication of JPS54109874A publication Critical patent/JPS54109874A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • 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
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/007—Electromechanical contact-making and breaking devices acting as pulse generators for setting

Landscapes

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

Abstract

PURPOSE:To eliminate chattering of a switch, obtain the signal faithful to the opening and closing of the switch and perform controlling of the watch by forming the switch operated by a turning operating member in transfer type. CONSTITUTION:A transfer switch 6 which is switched by a turning operating member, a set-reset type flip-flop 16 and a differentiating circuit 58 are provided as the circuit part for generating correction pulse signals. The operation signal of the transfer switch 6 is stored as the signal free from chattering in the flip-flop 16 and the pulse signal corresponding to the rise of the operation signal is formed in the differentiating circuit 58. This correction pulse signal is applied to the counter selected by a selection circuit 48 to correct the contents of that counter, whereby the time correction may be performed at the speed corresponding to the rotating speed of the crown.
JP1689778A 1978-02-16 1978-02-16 Electronic wristwatch Pending JPS54109874A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1689778A JPS54109874A (en) 1978-02-16 1978-02-16 Electronic wristwatch
US06/010,350 US4257114A (en) 1978-02-16 1979-02-08 Electronic timepiece
CH157679A CH639526GA3 (en) 1978-02-16 1979-02-16 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1689778A JPS54109874A (en) 1978-02-16 1978-02-16 Electronic wristwatch

Publications (1)

Publication Number Publication Date
JPS54109874A true JPS54109874A (en) 1979-08-28

Family

ID=11928931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1689778A Pending JPS54109874A (en) 1978-02-16 1978-02-16 Electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS54109874A (en)

Similar Documents

Publication Publication Date Title
JPS5744264B2 (en)
JPS5515053A (en) Electronic watch
JPS5429681A (en) Electronic timepiece
CH638364GA3 (en)
JPS54109874A (en) Electronic wristwatch
JPS5374223A (en) Speed control device of motor
JPS5611528A (en) Switching control circuit of different period clock
JPS55107380A (en) Selector
FR2331080B1 (en)
JPS53103769A (en) Electronic timepiece having sounding function
JPS53113580A (en) Electronic watch
JPS5268470A (en) Watch device
JPS51147238A (en) Guarantee circuit of pulse width
JPS5491279A (en) Electronic watch
JPS5567692A (en) Counter fast feed system
JPS5282275A (en) Electronic timepiece
JPS5614981A (en) Correction signal generator
JPS5629185A (en) Second return zero unit for clock
JPS53118682A (en) Electronic adjuster
JPS54119963A (en) Alarm device for needle display type electronic watch
JPS5276066A (en) Electronic timepiece
JPS5523488A (en) Corrector of electronic watch
JPS5320367A (en) Pointer type electronic wristwatch
JPS5484769A (en) Fast feeder of digital timer
JPS5510279A (en) Generator for timing clock pulse of modem