CH617312GA3 - Battery-driven time measuring device - Google Patents

Battery-driven time measuring device Download PDF

Info

Publication number
CH617312GA3
CH617312GA3 CH850776A CH850776A CH617312GA3 CH 617312G A3 CH617312G A3 CH 617312GA3 CH 850776 A CH850776 A CH 850776A CH 850776 A CH850776 A CH 850776A CH 617312G A3 CH617312G A3 CH 617312GA3
Authority
CH
Switzerland
Prior art keywords
battery
measuring device
time measuring
driven time
signal
Prior art date
Application number
CH850776A
Other versions
CH617312B (en
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 CH617312B publication Critical patent/CH617312B/en
Priority claimed from JP48003258A external-priority patent/JPS4991574A/ja
Priority claimed from JP49022537A external-priority patent/JPS5840150B2/en
Application filed filed Critical
Publication of CH617312GA3 publication Critical patent/CH617312GA3/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/02—Arrangements of electric power supplies in time pieces the power supply being a radioactive or photovoltaic source
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Electric Clocks (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Primary Cells (AREA)

Abstract

Time measuring device having warning means for displaying the end of the life of the battery (101). A warning circuit with a display member (164) which is covered by a plate during normal operation. Scanning means (102) for the battery voltage which emits a signal when the battery voltage drops below a specific value, in order in this way to displace the plate so that the display member (164) becomes visible. After the signal has been emitted, no energy flows from the battery to the warning circuit. <IMAGE>
CH850776A 1972-12-29 1976-07-02 Battery-driven time measuring device CH617312GA3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48003258A JPS4991574A (en) 1972-12-29 1972-12-29
JP49022537A JPS5840150B2 (en) 1974-02-26 1974-02-26 electronic clock

Publications (2)

Publication Number Publication Date
CH617312B CH617312B (en)
CH617312GA3 true CH617312GA3 (en) 1980-05-30

Family

ID=26336802

Family Applications (1)

Application Number Title Priority Date Filing Date
CH850776A CH617312GA3 (en) 1972-12-29 1976-07-02 Battery-driven time measuring device

Country Status (2)

Country Link
US (1) USRE30588E (en)
CH (1) CH617312GA3 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH490710A (en) * 1966-02-10 1969-08-15 Suisse Horlogerie Electronic timepiece
US3451210A (en) * 1966-07-01 1969-06-24 Benrus Corp System for maintaining oscillations in an electric timing mechanism having an oscillatory element
DE1591859A1 (en) * 1967-12-08 1970-10-01 Braun Ag Arrangement for automatically measuring and displaying the voltage in electrically operated devices, in particular in electrical clocks
US3568430A (en) * 1968-07-11 1971-03-09 Hamilton Watch Co Resistance bridge controlled timekeeping device
US3540207A (en) * 1968-09-20 1970-11-17 Timex Corp Electronic watch counting circuit
US3668861A (en) * 1970-11-17 1972-06-13 Suwa Seikosha Kk Solid state electronic watch
GB1349209A (en) * 1971-02-25 1974-04-03 Suwa Seikosha Kk Electronic timepiece
JPS5326501B2 (en) * 1972-03-29 1978-08-02
US3807164A (en) * 1972-10-16 1974-04-30 Timex Corp Synchronized quartz crystal watch
US3898790A (en) * 1972-11-09 1975-08-12 Citizen Watch Co Ltd Battery-driven watch with battery consumption display alarm
JPS5627835B2 (en) * 1974-03-27 1981-06-27

Also Published As

Publication number Publication date
USRE30588E (en) 1981-04-21
CH617312B (en)

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