JPS5660381A - Electronic timepiece with cell life display - Google Patents

Electronic timepiece with cell life display

Info

Publication number
JPS5660381A
JPS5660381A JP13677079A JP13677079A JPS5660381A JP S5660381 A JPS5660381 A JP S5660381A JP 13677079 A JP13677079 A JP 13677079A JP 13677079 A JP13677079 A JP 13677079A JP S5660381 A JPS5660381 A JP S5660381A
Authority
JP
Japan
Prior art keywords
cell
circuit
voltage
counter
output
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
JP13677079A
Other languages
Japanese (ja)
Other versions
JPS6253794B2 (en
Inventor
Takeshi Takitani
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP13677079A priority Critical patent/JPS5660381A/en
Publication of JPS5660381A publication Critical patent/JPS5660381A/en
Publication of JPS6253794B2 publication Critical patent/JPS6253794B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE: To display the cell life with flashing without troubles, by detecting lowering of the cell voltage by oscillation stop to switch high and low voltages from the cell through a counter.
CONSTITUTION: When the cell voltage is lowered to stop oscillation of oscillating circuit 1, counter 6 is reset through oscillation stop detecting circuit 5. By this reset output, voltage switching circuit 7 is switched to select the high-voltage output of the cell in stead of the low-voltage output. Then, circuit 1 oscillates again, and a prescribed number of frequency division outputs of frequency dividing circuit 2 is counted by counter 6. Circuit 7 is switched to the low voltage by the count output for the prescribed number of counter 6, and similar iteration is repeated, and the liquid crystal is driven by the output of circuit 7, thus displaying the cell life with flashing on display device 4. Consequently, troubles where the life is displayed even if power of the cell left and the liquid crystal is broken by driving approximating DC at the time near wearing-off of the cell are not generated.
COPYRIGHT: (C)1981,JPO&Japio
JP13677079A 1979-10-23 1979-10-23 Electronic timepiece with cell life display Granted JPS5660381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13677079A JPS5660381A (en) 1979-10-23 1979-10-23 Electronic timepiece with cell life display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13677079A JPS5660381A (en) 1979-10-23 1979-10-23 Electronic timepiece with cell life display

Publications (2)

Publication Number Publication Date
JPS5660381A true JPS5660381A (en) 1981-05-25
JPS6253794B2 JPS6253794B2 (en) 1987-11-12

Family

ID=15183100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13677079A Granted JPS5660381A (en) 1979-10-23 1979-10-23 Electronic timepiece with cell life display

Country Status (1)

Country Link
JP (1) JPS5660381A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815187A (en) * 1981-07-20 1983-01-28 Seiko Epson Corp Multi-function electronic clock
JPH0559834A (en) * 1991-09-03 1993-03-09 Yukio Kanazawa Multi-story garage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815187A (en) * 1981-07-20 1983-01-28 Seiko Epson Corp Multi-function electronic clock
JPH0325756B2 (en) * 1981-07-20 1991-04-08 Seiko Epson Corp
JPH0559834A (en) * 1991-09-03 1993-03-09 Yukio Kanazawa Multi-story garage

Also Published As

Publication number Publication date
JPS6253794B2 (en) 1987-11-12

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