JPS5569084A - Electronic watch with automatic time correcting function - Google Patents

Electronic watch with automatic time correcting function

Info

Publication number
JPS5569084A
JPS5569084A JP14230278A JP14230278A JPS5569084A JP S5569084 A JPS5569084 A JP S5569084A JP 14230278 A JP14230278 A JP 14230278A JP 14230278 A JP14230278 A JP 14230278A JP S5569084 A JPS5569084 A JP S5569084A
Authority
JP
Japan
Prior art keywords
circuit
time signal
discrimination circuit
signal
counter
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
JP14230278A
Other languages
Japanese (ja)
Inventor
Nobuo Toyama
Junichi Yoshida
Shozo Yamano
Kenji Kamiya
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.)
Ricoh Elemex Corp
Ricoh Co Ltd
Original Assignee
Ricoh Elemex Corp
Ricoh 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 Ricoh Elemex Corp, Ricoh Co Ltd filed Critical Ricoh Elemex Corp
Priority to JP14230278A priority Critical patent/JPS5569084A/en
Priority to US06/094,631 priority patent/US4358836A/en
Priority to FR7928488A priority patent/FR2441876A1/en
Priority to DE19792946865 priority patent/DE2946865A1/en
Publication of JPS5569084A publication Critical patent/JPS5569084A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To make automatic time correction by providing a filter where only signals of the same frequency as a time signal are allowed to pass and then by supplying its output to a second directing reset-to-zero circuit through a crest discrimination circuit and time signal discrimination circuit for second correction.
CONSTITUTION: The count content of counter 4 of watch circuit 1 is displayed by display unit 6 through display driver circuit 5. Further, a time signal is received by receiver 7 and filter 9 allows a component equal in frequency to the time signal to pass through; and this signal is supplied to crest discrimination circuit 10 for conversion into a binary signal, which is led to time signal discrimination circuit 11. Then, discrimination circuit 11 discriminates a time pattern to send out a pulse based upon it and 30-second directing reset-to-zero circuit 12 resets the second- counter of counter 4 and also corrects display contents. Therefore, second correcting and start operations are automatized to simplify correcting operation.
COPYRIGHT: (C)1980,JPO&Japio
JP14230278A 1978-11-20 1978-11-20 Electronic watch with automatic time correcting function Pending JPS5569084A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14230278A JPS5569084A (en) 1978-11-20 1978-11-20 Electronic watch with automatic time correcting function
US06/094,631 US4358836A (en) 1978-11-20 1979-11-15 Electronic watch with an automatic time indication modifier
FR7928488A FR2441876A1 (en) 1978-11-20 1979-11-19 ELECTRONIC WATCH WITH DEVICE FOR AUTOMATIC MODIFICATION OF THE TIME INDICATION
DE19792946865 DE2946865A1 (en) 1978-11-20 1979-11-20 ELECTRONIC CLOCK

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14230278A JPS5569084A (en) 1978-11-20 1978-11-20 Electronic watch with automatic time correcting function

Publications (1)

Publication Number Publication Date
JPS5569084A true JPS5569084A (en) 1980-05-24

Family

ID=15312203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14230278A Pending JPS5569084A (en) 1978-11-20 1978-11-20 Electronic watch with automatic time correcting function

Country Status (1)

Country Link
JP (1) JPS5569084A (en)

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