JPS5291470A - Portable electronic clock - Google Patents

Portable electronic clock

Info

Publication number
JPS5291470A
JPS5291470A JP809776A JP809776A JPS5291470A JP S5291470 A JPS5291470 A JP S5291470A JP 809776 A JP809776 A JP 809776A JP 809776 A JP809776 A JP 809776A JP S5291470 A JPS5291470 A JP S5291470A
Authority
JP
Japan
Prior art keywords
portable electronic
electronic clock
ordinary
hand
hand movement
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.)
Granted
Application number
JP809776A
Other languages
Japanese (ja)
Other versions
JPS6147390B2 (en
Inventor
Yasushi Nomura
Minoru Watanabe
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 JP809776A priority Critical patent/JPS5291470A/en
Priority to US05/760,890 priority patent/US4150536A/en
Publication of JPS5291470A publication Critical patent/JPS5291470A/en
Publication of JPS6147390B2 publication Critical patent/JPS6147390B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To obtain correct hand movement by modulating the ordinary driving wave shape for the stepping motor when the hand is to be moved at a rate different from the ordinary hand movement.
JP809776A 1976-01-28 1976-01-28 Portable electronic clock Granted JPS5291470A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP809776A JPS5291470A (en) 1976-01-28 1976-01-28 Portable electronic clock
US05/760,890 US4150536A (en) 1976-01-28 1977-01-21 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP809776A JPS5291470A (en) 1976-01-28 1976-01-28 Portable electronic clock

Publications (2)

Publication Number Publication Date
JPS5291470A true JPS5291470A (en) 1977-08-01
JPS6147390B2 JPS6147390B2 (en) 1986-10-18

Family

ID=11683797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP809776A Granted JPS5291470A (en) 1976-01-28 1976-01-28 Portable electronic clock

Country Status (1)

Country Link
JP (1) JPS5291470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201884A (en) * 1981-06-08 1982-12-10 Seikosha Co Ltd Clock with battery life alarming function

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11127595A (en) * 1997-08-11 1999-05-11 Seiko Epson Corp Electronic equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822155U (en) * 1981-08-04 1983-02-10 安久井　宥 jump footwear

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822155U (en) * 1981-08-04 1983-02-10 安久井　宥 jump footwear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201884A (en) * 1981-06-08 1982-12-10 Seikosha Co Ltd Clock with battery life alarming function

Also Published As

Publication number Publication date
JPS6147390B2 (en) 1986-10-18

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