CH614096GA3 - - Google Patents

Download PDF

Info

Publication number
CH614096GA3
CH614096GA3 CH548776A CH548776A CH614096GA3 CH 614096G A3 CH614096G A3 CH 614096GA3 CH 548776 A CH548776 A CH 548776A CH 548776 A CH548776 A CH 548776A CH 614096G A3 CH614096G A3 CH 614096GA3
Authority
CH
Switzerland
Prior art keywords
battery
voltage
oscillator
low
selection circuitry
Prior art date
Application number
CH548776A
Other languages
English (en)
Other versions
CH614096B (de
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
Publication of CH614096B publication Critical patent/CH614096B/xx
Application filed filed Critical
Publication of CH614096GA3 publication Critical patent/CH614096GA3/xx

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/0023Visual time or date indication means by light valves in general
    • G04G9/0029Details
    • G04G9/0035Details constructional
    • G04G9/0041Illumination devices
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G19/00Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/08Arrangements for preventing voltage drop due to overloading the power supply
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/08Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
CH548776A 1975-05-12 1976-04-30 Elektronische kleinuhr mit einer digitalen optischen anzeigeeinrichtung. CH614096B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/576,760 US3968641A (en) 1975-05-12 1975-05-12 Digital watch with oscillator/divider power selection circuitry

Publications (2)

Publication Number Publication Date
CH614096B CH614096B (de)
CH614096GA3 true CH614096GA3 (xx) 1979-11-15

Family

ID=24305886

Family Applications (1)

Application Number Title Priority Date Filing Date
CH548776A CH614096B (de) 1975-05-12 1976-04-30 Elektronische kleinuhr mit einer digitalen optischen anzeigeeinrichtung.

Country Status (7)

Country Link
US (1) US3968641A (xx)
JP (1) JPS51138479A (xx)
CH (1) CH614096B (xx)
DE (1) DE2618863C3 (xx)
FR (1) FR2311343A1 (xx)
GB (1) GB1537137A (xx)
HK (1) HK75579A (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015420A (en) * 1976-05-03 1977-04-05 Hughes Aircraft Company Battery select circuitry and level translator for a digital watch
US4149257A (en) * 1976-06-15 1979-04-10 Citizen Watch Company Limited Alarm watch equipped with electronic calculator
JPS54149625U (xx) * 1978-04-11 1979-10-18
JPS5658746A (en) * 1979-10-19 1981-05-21 Casio Computer Co Ltd Power source supply system
US7004598B2 (en) * 2003-02-18 2006-02-28 Cheerine Development (Hong Kong) Ltd. Flashing light system with power selection
US7067986B2 (en) * 2003-09-15 2006-06-27 Cheerine Development (Hong Kong) Limited Frequency controlled lighting system
US7057354B2 (en) * 2003-09-15 2006-06-06 Cheerine Development (Hong Kong) Limited Frequency controlled lighting system
US7029140B2 (en) * 2003-12-23 2006-04-18 Cheerine Development (Hong Kong) Ltd. Flashing light system with multiple voltages
US7207688B2 (en) * 2005-08-18 2007-04-24 Wong Wai Yuen Interactive shoe light device
KR100656588B1 (ko) * 2006-02-10 2006-12-13 삼성전자주식회사 외장 배터리의 추가 장착에 대한 식별이 용이한 배터리잔량정보의 표시가 가능한 휴대용 단말기 및 그 방법
CN104020662A (zh) * 2014-06-22 2014-09-03 管存忠 一种年误差绝对值小于1秒的电子钟
AU2015414468B2 (en) 2015-11-12 2021-06-17 Razer (Asia-Pacific) Pte. Ltd. Watches

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881311A (en) * 1971-02-27 1975-05-06 Suwa Seikosha Kk Driving arrangement for passive time indicating devices
US3701249A (en) * 1971-03-12 1972-10-31 Hamilton Watch Co Solid state timepiece with liquid crystal display
JPS4895269A (xx) * 1972-03-17 1973-12-06
JPS5534388B2 (xx) * 1972-10-05 1980-09-06
US3911665A (en) * 1974-01-14 1975-10-14 Zenith Radio Corp Electronic timepiece having complementary electro-optical and electro-mechanical displays

Also Published As

Publication number Publication date
FR2311343A1 (fr) 1976-12-10
GB1537137A (en) 1978-12-29
DE2618863B2 (de) 1977-11-10
CH614096B (de)
DE2618863A1 (de) 1976-11-18
DE2618863C3 (de) 1978-06-29
JPS51138479A (en) 1976-11-30
HK75579A (en) 1979-11-02
US3968641A (en) 1976-07-13

Similar Documents

Publication Publication Date Title
CH614096GA3 (xx)
GB1365974A (en) Electronic timepiece with power conserving features
GB1509507A (en) Electronic timepieces
JPS5386270A (en) Oscillation circuit for electronic timepiece
JPS5363057A (en) Electronic wristwatch
JPS5356985A (en) Light emitting element driving circuit
JPS53101473A (en) Electronic watch
JPS51146862A (en) Brightness modulating device for luminous display element wrist watch
JPS56150384A (en) Illuminating device of electronic watch
JPS5334569A (en) Watch using battery as power supply
JPS5320880A (en) Driving circuit of light emitting diode
JPS52106764A (en) Power supply unit of electronic wrist watch
JPS5327071A (en) Electronic watch
JPS5510552A (en) Crystal watch
JPS5338281A (en) Light emitting diode driving circuit
JPS5370867A (en) Electronic watch with lamp
JPS5327072A (en) Light emitting diode display watch
KR910005696Y1 (ko) 밧데리의 과충전 방지회로
JPS53144775A (en) Electronic watch with lamp
JPH08152492A (ja) 時計装置
JPS5345843A (en) Reserve lighting circuit
JPS5671343A (en) Telephone set for automobile
JPS53115270A (en) Electronic watch
JPS5353375A (en) Display system of electronic wristwatch
JPS5218356A (en) Electronic clock with battery life detection function