JPS5487275A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5487275A
JPS5487275A JP15470477A JP15470477A JPS5487275A JP S5487275 A JPS5487275 A JP S5487275A JP 15470477 A JP15470477 A JP 15470477A JP 15470477 A JP15470477 A JP 15470477A JP S5487275 A JPS5487275 A JP S5487275A
Authority
JP
Japan
Prior art keywords
circuit
signals
pulses
output
watch
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
JP15470477A
Other languages
Japanese (ja)
Inventor
Takuro Fukuichi
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 JP15470477A priority Critical patent/JPS5487275A/en
Publication of JPS5487275A publication Critical patent/JPS5487275A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce an operational error, while keeping the circuit from becoming complex, by feeding the signals of 2m Hx signals from an oscillating frequency dividing circuit to a 10D Hz generating circuit through a gate circuit whichdoes or does not start the counting operation of a stop-watch.
CONSTITUTION: The signals of the oscillatory frequency of 2nHz from a quartz oscillator 1 are subjected to frequency division by a frequency dividing circuit 2, and the output signals 13 of 2mHz are fed through a gate circuit 4 to a 10DHz generating circuit 5. In case this circuit 5 is a system, by which the input pulses are counted to feed one output pulse for a certain number of pulses, if the input is 128 Hz and the output is 10 Hz, this 10 Hz can be generated by the combination, in which the 128 Hz 13 is subjected to frequency division to generate one output pulse for each 12 or 13 pulses. If the switch of a stop-watch counting start of the switch group 10 is turned on, 1 is displayed in the unit of 1/10 second as accurately as possible.
COPYRIGHT: (C)1979,JPO&Japio
JP15470477A 1977-12-22 1977-12-22 Electronic watch Pending JPS5487275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15470477A JPS5487275A (en) 1977-12-22 1977-12-22 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15470477A JPS5487275A (en) 1977-12-22 1977-12-22 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5487275A true JPS5487275A (en) 1979-07-11

Family

ID=15590121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15470477A Pending JPS5487275A (en) 1977-12-22 1977-12-22 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5487275A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008170197A (en) * 2007-01-10 2008-07-24 Toyama Sumitomo Denko Kk Foreign matter detector for metal porous object, and metal porous object through foreign matter detection process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008170197A (en) * 2007-01-10 2008-07-24 Toyama Sumitomo Denko Kk Foreign matter detector for metal porous object, and metal porous object through foreign matter detection process

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