JPS5591054A - Electronic apparatus - Google Patents

Electronic apparatus

Info

Publication number
JPS5591054A
JPS5591054A JP16588078A JP16588078A JPS5591054A JP S5591054 A JPS5591054 A JP S5591054A JP 16588078 A JP16588078 A JP 16588078A JP 16588078 A JP16588078 A JP 16588078A JP S5591054 A JPS5591054 A JP S5591054A
Authority
JP
Japan
Prior art keywords
battery
key
input
gate
life
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
JP16588078A
Other languages
Japanese (ja)
Inventor
Hiroshi Takahashi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP16588078A priority Critical patent/JPS5591054A/en
Publication of JPS5591054A publication Critical patent/JPS5591054A/en
Pending legal-status Critical Current

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  • Input From Keyboards Or The Like (AREA)
  • Calculators And Similar Devices (AREA)

Abstract

PURPOSE: To simplify the operation and the function with no installation of the special battery life calling key but by securing the sequential monitor for the life time information of the battery with every push of the specified key.
CONSTITUTION: Control CTR relating the input/output control, the operation and the watch plus battery using period timing circuit CNT are provided to the integrated circuit LSI. Then the earth side and the voltage side of battery BAT are connected to terminals GND and VDD of circuit LSI each, and the branch voltage between capacitor C and resistance R is connected to terminal RES. At the same time, the power cell life of BAT is memorized previously into ROM and in the form of the binary code, and the comparison is always given between the output of circuit CNT and the memory contents of ROM at comparator COP. The comparison result is applied to gate GATE in the level H or L. And when specific all-clear key CK of the key input part is pressed, the input is applied to GATE. Then the state of the battery life is displayed on display unit LCD in the fixed way in combination between the input of the key input part and output CD of comparator COP.
COPYRIGHT: (C)1980,JPO&Japio
JP16588078A 1978-12-27 1978-12-27 Electronic apparatus Pending JPS5591054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16588078A JPS5591054A (en) 1978-12-27 1978-12-27 Electronic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16588078A JPS5591054A (en) 1978-12-27 1978-12-27 Electronic apparatus

Publications (1)

Publication Number Publication Date
JPS5591054A true JPS5591054A (en) 1980-07-10

Family

ID=15820726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16588078A Pending JPS5591054A (en) 1978-12-27 1978-12-27 Electronic apparatus

Country Status (1)

Country Link
JP (1) JPS5591054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010479A1 (en) * 1987-06-19 1988-12-29 Fanuc Ltd Ic card and apparatus for monitoring the life of ic card

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536136B2 (en) * 1971-12-06 1978-03-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536136B2 (en) * 1971-12-06 1978-03-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010479A1 (en) * 1987-06-19 1988-12-29 Fanuc Ltd Ic card and apparatus for monitoring the life of ic card

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