JPS54101366A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS54101366A
JPS54101366A JP767778A JP767778A JPS54101366A JP S54101366 A JPS54101366 A JP S54101366A JP 767778 A JP767778 A JP 767778A JP 767778 A JP767778 A JP 767778A JP S54101366 A JPS54101366 A JP S54101366A
Authority
JP
Japan
Prior art keywords
watch
terminal
battery life
life display
adjusting device
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
JP767778A
Other languages
Japanese (ja)
Inventor
Shingo Ichikawa
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP767778A priority Critical patent/JPS54101366A/en
Publication of JPS54101366A publication Critical patent/JPS54101366A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To facilitate the adjustment of voltage detection by making concurrent use of a lamp driving circuit for a monitor circuit at the adjusting of a battery life display circuit. CONSTITUTION:An IC 1 for watch is set to an IC adjusting device for watch and the voltage level to perform battery life display is applied between power source terminals VDD, VSS. At the same time lamp switch terminal SL is set at logic ''1'' and clock signal phi2 is applied to input terminal T. Now, when the lamp terminal L and a voltage regulating resistance terminal RBD is connected to the IC adjusting device for watch, an AND gate 15 goes ON and the clock signal phi2 is supplied to the sampling terminal S, thus a battery life display circuit 14 assumes a normally sampling state. Hence, when the resistance value of the IC adjusting device for watch is adjusted and operated, a lamp driving circuit 20 goes ON at the time when the resistance value reaches the operation level of the battery life display circuit 14. If a resistance equal to the resistance value is connected between the terminals RBD, VDD in this state, the adjustment operation completes.
JP767778A 1978-01-26 1978-01-26 Electronic watch Pending JPS54101366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP767778A JPS54101366A (en) 1978-01-26 1978-01-26 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP767778A JPS54101366A (en) 1978-01-26 1978-01-26 Electronic watch

Publications (1)

Publication Number Publication Date
JPS54101366A true JPS54101366A (en) 1979-08-09

Family

ID=11672413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP767778A Pending JPS54101366A (en) 1978-01-26 1978-01-26 Electronic watch

Country Status (1)

Country Link
JP (1) JPS54101366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63132387U (en) * 1987-12-16 1988-08-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63132387U (en) * 1987-12-16 1988-08-30

Similar Documents

Publication Publication Date Title
GB1513930A (en) Battery voltage detecting device
GB1524129A (en) Voltage level shift circuits
CH644242B (en) BATTERY OPERATED ELECTRONIC TIMING DEVICE.
GB1535292A (en) Electronic watch
JPS54101366A (en) Electronic watch
JPS57166733A (en) Electronic circuit
JPS6481019A (en) Semiconductor integrated circuit
JPS5516237A (en) Electronic watch
JPS5779457A (en) Voltage comparing circuit
JPS54135570A (en) Electronic watch
JPS5717031A (en) Power supply circuit
JPS6442095A (en) Charge circuit
JPS5789744A (en) Electronic device
SU851773A1 (en) Timer
JPS537369A (en) Electronic watch
JPS5799029A (en) Input device for electronic watch
JPS56163474A (en) Electronic timepiece
JPS57169692A (en) Battery life detector
JPS5657980A (en) Integrated circuit for electronic watch
JPS5524609A (en) Power source of electronic element
JPS573427A (en) Interface circuit
JPS5717163A (en) Complementary integrated circuit
JPS6436061A (en) Cmos semiconductor integrated circuit device
JPS54111381A (en) Electronic watch
JPS5627685A (en) Voltage controller for electronic timepiece