CH660279GA3 - - Google Patents

Download PDF

Info

Publication number
CH660279GA3
CH660279GA3 CH157185A CH157185A CH660279GA3 CH 660279G A3 CH660279G A3 CH 660279GA3 CH 157185 A CH157185 A CH 157185A CH 157185 A CH157185 A CH 157185A CH 660279G A3 CH660279G A3 CH 660279GA3
Authority
CH
Switzerland
Prior art keywords
counter
output
state
flop
flip
Prior art date
Application number
CH157185A
Other languages
French (fr)
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 filed Critical
Priority to CH157185A priority Critical patent/CH660279GA3/fr
Priority to DE8686104947T priority patent/DE3668711D1/en
Priority to EP86104947A priority patent/EP0203330B1/en
Priority to US06/850,784 priority patent/US4630936A/en
Priority to JP61082400A priority patent/JPH0636042B2/en
Publication of CH660279GA3 publication Critical patent/CH660279GA3/fr
Priority to SG1268/92A priority patent/SG126892G/en
Priority to HK17695A priority patent/HK17695A/en

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
    • 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)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

The timepiece comprises an oscillator (1), a frequency divider (2), a control circuit (3), a stepping motor (4), a seconds hand (5), a circuit (7) for detecting steps missed by the motor, an up-down counter (15) having a capacity N, and a flip-flop (16). At each missed step the detecting circuit (7) generates a tally pulse (S7) which increments the counter (15). The latter is also decremented by periodic pulses appearing on the B output of the frequency divider (2). When a cell supplying the timepiece is nearly exhausted, the number of steps missed per unit of time is high and the counter (15) is, on balance, incremented. When passing from state N-1 to state N the counter issues on its Qh output a pulse that causes the Q output of the flip-flop (16) to go high. The control circuit (3) produces, in response to this high state of the flip-flop, a signal warning of the imminent end of the cell's life in the form of an irregular motion of the seconds hand (5). Otherwise, when the cell is still good, the number of missed steps is low and the counter (15) is decremented. When passing from state 1 to state 0 the counter issues on its Qb output a pulse that causes the Q output of the flip-flop (16) to go low, thereby stopping the warning signal.
CH157185A 1985-04-12 1985-04-12 CH660279GA3 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH157185A CH660279GA3 (en) 1985-04-12 1985-04-12
DE8686104947T DE3668711D1 (en) 1985-04-12 1986-04-10 ELECTRONIC MOVEMENT WITH DETECTION FOR THE LIFE OF THE BATTERY.
EP86104947A EP0203330B1 (en) 1985-04-12 1986-04-10 Electronic time piece with a detector of the end of the life span of the battery
US06/850,784 US4630936A (en) 1985-04-12 1986-04-11 Electronic timepiece
JP61082400A JPH0636042B2 (en) 1985-04-12 1986-04-11 Electronic clock
SG1268/92A SG126892G (en) 1985-04-12 1992-12-16 Electronic time piece with a detector of the end of the life span of the battery
HK17695A HK17695A (en) 1985-04-12 1995-02-09 Electronic time piece with a detector of the end of the life span of the battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH157185A CH660279GA3 (en) 1985-04-12 1985-04-12

Publications (1)

Publication Number Publication Date
CH660279GA3 true CH660279GA3 (en) 1987-04-15

Family

ID=4213539

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157185A CH660279GA3 (en) 1985-04-12 1985-04-12

Country Status (7)

Country Link
US (1) US4630936A (en)
EP (1) EP0203330B1 (en)
JP (1) JPH0636042B2 (en)
CH (1) CH660279GA3 (en)
DE (1) DE3668711D1 (en)
HK (1) HK17695A (en)
SG (1) SG126892G (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759003A (en) * 1986-02-28 1988-07-19 Seiko Instruments Inc. Electronic analog timepiece with voltage checking function
DE4041696C1 (en) * 1990-12-24 1992-03-26 Braun Ag, 6000 Frankfurt, De Charge state monitor for power source of electronic timepiece - has output voltage measurer connected to counter for lower and upper thresholds
US6147936A (en) * 1996-10-31 2000-11-14 Citizen Watch Co., Ltd. Electronic watch
JP4756070B2 (en) * 2006-03-30 2011-08-24 富士通株式会社 Information processing apparatus, management method, and management program
KR101059907B1 (en) 2006-03-30 2011-08-29 후지쯔 가부시끼가이샤 Electronic device, information processing device
KR101010950B1 (en) * 2006-03-30 2011-01-26 후지쯔 가부시끼가이샤 Electronic devices, management methods and management programs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2125224A1 (en) * 1971-05-21 1972-11-30 Uhren Feingeraete Forsch Time-keeping device, especially a quartz wristwatch with digital phase control of the display system
DE2513845A1 (en) * 1974-03-27 1976-02-19 Suwa Seikosha Kk ELECTRONIC CLOCK
GB2011665A (en) * 1977-12-28 1979-07-11 Ebauches Sa Electronic time piece comprising a system for detecting the end of the battery life
GB2023892A (en) * 1978-06-20 1980-01-03 Ebauches Sa Motor drive system for reducing energy consumption of an electronic timepiece
DE3226558A1 (en) * 1982-07-16 1984-01-26 Eurosil GmbH, 8057 Eching Method for determining critically reduced battery capacity in small battery-operated apparatuses, especially clocks, and a circuit arrangement for carrying out the method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126070A (en) * 1974-08-27 1976-03-03 Sharp Kk DENSHITOKEI
JPS53132386A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5627835A (en) * 1979-08-16 1981-03-18 Matsushita Electric Ind Co Ltd Heating control for cooking heater
JPS5863881A (en) * 1981-10-13 1983-04-15 Seikosha Co Ltd Electronic clock
JPS5866090A (en) * 1981-10-15 1983-04-20 Seikosha Co Ltd Electronic time piece

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2125224A1 (en) * 1971-05-21 1972-11-30 Uhren Feingeraete Forsch Time-keeping device, especially a quartz wristwatch with digital phase control of the display system
DE2513845A1 (en) * 1974-03-27 1976-02-19 Suwa Seikosha Kk ELECTRONIC CLOCK
GB2011665A (en) * 1977-12-28 1979-07-11 Ebauches Sa Electronic time piece comprising a system for detecting the end of the battery life
GB2023892A (en) * 1978-06-20 1980-01-03 Ebauches Sa Motor drive system for reducing energy consumption of an electronic timepiece
DE3226558A1 (en) * 1982-07-16 1984-01-26 Eurosil GmbH, 8057 Eching Method for determining critically reduced battery capacity in small battery-operated apparatuses, especially clocks, and a circuit arrangement for carrying out the method

Also Published As

Publication number Publication date
JPS61237082A (en) 1986-10-22
EP0203330A1 (en) 1986-12-03
DE3668711D1 (en) 1990-03-08
JPH0636042B2 (en) 1994-05-11
EP0203330B1 (en) 1990-01-31
SG126892G (en) 1993-03-12
US4630936A (en) 1986-12-23
HK17695A (en) 1995-02-17

Similar Documents

Publication Publication Date Title
JPS5452578A (en) Stopwatch
CH660279GA3 (en)
SE8101540L (en) SPEED regulating device
JPS5662428A (en) Oscillator
US4028880A (en) Life display device of a cell incorporated into an electronic timepiece
JPS5515053A (en) Electronic watch
AU620973B2 (en) Oscillation maintenance circuit
CH632124B (en) ELECTRONIC WATCH PART.
JPS54119902A (en) Pause time limiter for disc reproducer
JPS57191576A (en) Battery life annunciator
JPS5686309A (en) Pedometer
JPS5619483A (en) Electronic timepiece
JPS57175281A (en) Timepiece device with alarm
JPS5531934A (en) Electronic watch
JPS54158966A (en) Electronic watch
JPS6468127A (en) Oscillation circuit
JPS57100372A (en) Electronic timepiece
JPS6420732A (en) Communication equipment
KR890002880A (en) Tape Radius Calculator
JPS5644889A (en) Analog electronic clock equipped with alarm having timer function
JPS57103505A (en) Device number controller
JPS6427079A (en) Signal processing circuit
JPS5756827A (en) Automatic exposure control camera
JPS57208473A (en) Measuring device for duty ratio
STELLEMA An accurate dc motor speed control system(using oscillator as frequency reference)