JPS54133169A - Phase detector of electronic watch and others - Google Patents

Phase detector of electronic watch and others

Info

Publication number
JPS54133169A
JPS54133169A JP4068278A JP4068278A JPS54133169A JP S54133169 A JPS54133169 A JP S54133169A JP 4068278 A JP4068278 A JP 4068278A JP 4068278 A JP4068278 A JP 4068278A JP S54133169 A JPS54133169 A JP S54133169A
Authority
JP
Japan
Prior art keywords
identification
analog display
wheel train
digital quantity
phase detector
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
JP4068278A
Other languages
Japanese (ja)
Inventor
Kazunari Kume
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 JP4068278A priority Critical patent/JPS54133169A/en
Priority to US06/026,971 priority patent/US4290131A/en
Priority to GB7912067A priority patent/GB2023310B/en
Priority to CH324079A priority patent/CH645500GA3/de
Priority to DE19792913993 priority patent/DE2913993A1/en
Publication of JPS54133169A publication Critical patent/JPS54133169A/en
Pending legal-status Critical Current

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  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To convert analog display to digital display with a simple constitution by detecting the phase of an analog display system to digital quantity through an identification plate operating cooperatively with wheel train.
CONSTITUTION: The time is analogically displayed by the hands, etc. of an analog display device 6 through a frequency dividing system 3, electro-mechanical conversion part 4 such as step motor and other and wheel train 5. On the other hand, an identification plate 71 formed with identification patterns of binary codes or the identification patterns of gray codes of a phase detector 7 turns cooperatively with the wheel train 5, and the digital quantity corresponding to analog quantity is read out with an identifier 72 and is stored as voltage corresponding to digital quantity in an identification circuit 73. Hence, analog display may be accurately digitally displayed without any step-out with the simple constitution of not requiring any mechanical and electrical counters.
COPYRIGHT: (C)1979,JPO&Japio
JP4068278A 1978-04-06 1978-04-06 Phase detector of electronic watch and others Pending JPS54133169A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP4068278A JPS54133169A (en) 1978-04-06 1978-04-06 Phase detector of electronic watch and others
US06/026,971 US4290131A (en) 1978-04-06 1979-04-04 Electronic timepiece
GB7912067A GB2023310B (en) 1978-04-06 1979-04-05 Electronic timepiece
CH324079A CH645500GA3 (en) 1978-04-06 1979-04-06
DE19792913993 DE2913993A1 (en) 1978-04-06 1979-04-06 ANALOG / DIGITAL CONVERSION SYSTEM FOR AN ELECTRONIC WATCH

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4068278A JPS54133169A (en) 1978-04-06 1978-04-06 Phase detector of electronic watch and others

Publications (1)

Publication Number Publication Date
JPS54133169A true JPS54133169A (en) 1979-10-16

Family

ID=12587298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4068278A Pending JPS54133169A (en) 1978-04-06 1978-04-06 Phase detector of electronic watch and others

Country Status (1)

Country Link
JP (1) JPS54133169A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159789U (en) * 1980-04-26 1981-11-28
JPS59126284A (en) * 1983-01-07 1984-07-20 Orient Watch Co Ltd Electronic time-piece with time alarm function
JPH0628782U (en) * 1992-08-05 1994-04-15 台甲 馮 Pointer-type watch with voice reporting function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159789U (en) * 1980-04-26 1981-11-28
JPS6118470Y2 (en) * 1980-04-26 1986-06-04
JPS59126284A (en) * 1983-01-07 1984-07-20 Orient Watch Co Ltd Electronic time-piece with time alarm function
JPH0628782U (en) * 1992-08-05 1994-04-15 台甲 馮 Pointer-type watch with voice reporting function

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