JPS5370876A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS5370876A
JPS5370876A JP14693976A JP14693976A JPS5370876A JP S5370876 A JPS5370876 A JP S5370876A JP 14693976 A JP14693976 A JP 14693976A JP 14693976 A JP14693976 A JP 14693976A JP S5370876 A JPS5370876 A JP S5370876A
Authority
JP
Japan
Prior art keywords
electronic wristwatch
rotor
reverse
pulses
ordinary
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
JP14693976A
Other languages
English (en)
Japanese (ja)
Inventor
Masaharu Shida
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 JP14693976A priority Critical patent/JPS5370876A/ja
Priority to DE2752880A priority patent/DE2752880C2/de
Priority to FR7736510A priority patent/FR2373817A1/fr
Priority to GB50731/77A priority patent/GB1571260A/en
Priority to CH1490877A priority patent/CH628488B/fr
Priority to US05/858,440 priority patent/US4205262A/en
Publication of JPS5370876A publication Critical patent/JPS5370876A/ja
Priority to SG44382A priority patent/SG44382G/en
Priority to HK511/82A priority patent/HK51182A/xx
Pending 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
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Adornments (AREA)
JP14693976A 1976-12-07 1976-12-07 Electronic wristwatch Pending JPS5370876A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP14693976A JPS5370876A (en) 1976-12-07 1976-12-07 Electronic wristwatch
DE2752880A DE2752880C2 (de) 1976-12-07 1977-11-26 Schrittmotor
FR7736510A FR2373817A1 (fr) 1976-12-07 1977-12-05 Montre electronique du type a moteur pas a pas
GB50731/77A GB1571260A (en) 1976-12-07 1977-12-06 Electronic timepiece
CH1490877A CH628488B (fr) 1976-12-07 1977-12-06 Montre electronique, notamment montre-bracelet electronique.
US05/858,440 US4205262A (en) 1976-12-07 1977-12-07 Electronic watch
SG44382A SG44382G (en) 1976-12-07 1982-09-11 Electronic timepiece
HK511/82A HK51182A (en) 1976-12-07 1982-11-25 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14693976A JPS5370876A (en) 1976-12-07 1976-12-07 Electronic wristwatch

Publications (1)

Publication Number Publication Date
JPS5370876A true JPS5370876A (en) 1978-06-23

Family

ID=15418978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14693976A Pending JPS5370876A (en) 1976-12-07 1976-12-07 Electronic wristwatch

Country Status (8)

Country Link
US (1) US4205262A (en, 2012)
JP (1) JPS5370876A (en, 2012)
CH (1) CH628488B (en, 2012)
DE (1) DE2752880C2 (en, 2012)
FR (1) FR2373817A1 (en, 2012)
GB (1) GB1571260A (en, 2012)
HK (1) HK51182A (en, 2012)
SG (1) SG44382G (en, 2012)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132382A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
FR2450527A1 (fr) * 1979-03-01 1980-09-26 Suisse Horlogerie Moteur pas a pas non reversible
FR2461399A1 (fr) * 1979-07-09 1981-01-30 Suisse Horlogerie Detecteur de position d'un moteur pas a pas
US4375049A (en) * 1980-09-24 1983-02-22 Timex Corporation Stepping motor drive circuit for bi-directional rotation
US4912692A (en) * 1988-09-29 1990-03-27 Timex Corporation High rate, bidirectional drive for a bipole stepping motor watch
DE4090927B4 (de) * 1989-06-01 2006-09-21 Papst Licensing Gmbh & Co. Kg Motor, insbesondere kollektorloser Gleichstrommotor
JP3981669B2 (ja) * 2004-03-02 2007-09-26 セイコーエプソン株式会社 モータ及びモータの駆動システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024680B2 (ja) * 1973-03-07 1985-06-14 セイコーインスツルメンツ株式会社 時計用ステツプモ−タの駆動回路
JPS5239111A (en) * 1975-09-25 1977-03-26 Citizen Watch Co Ltd Pulse motor for electronic clock
JPS5240712A (en) * 1975-09-27 1977-03-29 Citizen Watch Co Ltd Pulse motor for electronic clocks
JPS5280063A (en) * 1975-12-26 1977-07-05 Citizen Watch Co Ltd Reversible pulse motor system and watch
US4055785A (en) * 1976-01-12 1977-10-25 Fumio Nakajima Stepping motor for electronic timepiece

Also Published As

Publication number Publication date
DE2752880C2 (de) 1985-05-02
CH628488B (fr)
HK51182A (en) 1982-12-03
US4205262A (en) 1980-05-27
DE2752880A1 (de) 1978-06-08
FR2373817A1 (fr) 1978-07-07
SG44382G (en) 1983-02-25
GB1571260A (en) 1980-07-09
CH628488GA3 (en, 2012) 1982-03-15

Similar Documents

Publication Publication Date Title
JPS5370876A (en) Electronic wristwatch
JPS5327067A (en) Electronic watch
JPS5322467A (en) Electronic watch
JPS534577A (en) Electronic timepiece with buzzer means
JPS53106157A (en) Pulse generator
JPS52134365A (en) Counter
JPS5353381A (en) Electronic wristwatch
JPS5227663A (en) Multi-function electronic timepiece
JPS5370869A (en) Electronic watch
JPS5285858A (en) Watch with calculator
JPS5223287A (en) Electronic chime
JPS51132867A (en) Full electronic clock
JPS51145362A (en) Time informing watch
JPS51132866A (en) Full electronic clock
JPS5435773A (en) Electronic watch with electronic musical instrument
JPS5342857A (en) Alarm electronic watch
JPS52127056A (en) Counter
JPS52149405A (en) Data pulse fetch circuit
JPS5285859A (en) Small portable information apparatus
JPS52141270A (en) Clock with calculator
JPS51132869A (en) Electronic clock
JPS5342077A (en) Electronic watch
JPS52135769A (en) Hour-striking timepiece
JPS5296569A (en) Electronic watch
JPS5291470A (en) Portable electronic clock