JPS56157553A - Recording desk calculator provided with display equipment - Google Patents

Recording desk calculator provided with display equipment

Info

Publication number
JPS56157553A
JPS56157553A JP5942980A JP5942980A JPS56157553A JP S56157553 A JPS56157553 A JP S56157553A JP 5942980 A JP5942980 A JP 5942980A JP 5942980 A JP5942980 A JP 5942980A JP S56157553 A JPS56157553 A JP S56157553A
Authority
JP
Japan
Prior art keywords
display equipment
battery
capacity
digits
printer
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
JP5942980A
Other languages
Japanese (ja)
Inventor
Takeshi Kawanabe
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 JP5942980A priority Critical patent/JPS56157553A/en
Publication of JPS56157553A publication Critical patent/JPS56157553A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Calculators And Similar Devices (AREA)

Abstract

PURPOSE:To use the display function of a display equipment itself to confirm the capacity of a battery, by displaying the capacity of the battery by lighting a prescribed number of digits or digit positions on the display equipment. CONSTITUTION:The current of a battery B is input to a control circuit L through a DC/DC converter C and is further input to a printer P through a printer driving circuit A. Meanwhile, the signal from a keyboard K is subjected to operation and control by a circuit L, and the result is displayed on the display equipment and is printed as prescribed by a printer P. In this case, a timing pulse is generated by a timing pulse generator TPG and is sent to a pulse period detecting circuit DET. Consequently, if the capacity of a battery B is lowered, the period of the timing pulse formed by the TPG becomes long. This period is detected by the DET, and a small number of digits are lit on a display equipment D in accordance with the detection result. Meanwhile, if the capacity of the battery B is not lowered, a large number of digits are lit on the display equipment D.
JP5942980A 1980-05-07 1980-05-07 Recording desk calculator provided with display equipment Pending JPS56157553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5942980A JPS56157553A (en) 1980-05-07 1980-05-07 Recording desk calculator provided with display equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5942980A JPS56157553A (en) 1980-05-07 1980-05-07 Recording desk calculator provided with display equipment

Publications (1)

Publication Number Publication Date
JPS56157553A true JPS56157553A (en) 1981-12-04

Family

ID=13113007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5942980A Pending JPS56157553A (en) 1980-05-07 1980-05-07 Recording desk calculator provided with display equipment

Country Status (1)

Country Link
JP (1) JPS56157553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153109A (en) * 1983-02-22 1984-09-01 Mitsutoyo Mfg Co Ltd Erroneous-operation monitoring device for changed-amount measuring apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153109A (en) * 1983-02-22 1984-09-01 Mitsutoyo Mfg Co Ltd Erroneous-operation monitoring device for changed-amount measuring apparatus

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