CA961112A - Low battery voltage indicator for a portable digital electronic instrument - Google Patents

Low battery voltage indicator for a portable digital electronic instrument

Info

Publication number
CA961112A
CA961112A CA152,195A CA152195A CA961112A CA 961112 A CA961112 A CA 961112A CA 152195 A CA152195 A CA 152195A CA 961112 A CA961112 A CA 961112A
Authority
CA
Canada
Prior art keywords
battery voltage
digital electronic
low battery
portable digital
electronic instrument
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.)
Expired
Application number
CA152,195A
Other languages
English (en)
Other versions
CA152195S (en
Inventor
Thomas M. Whitney
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of CA961112A publication Critical patent/CA961112A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
CA152,195A 1971-12-09 1972-09-20 Low battery voltage indicator for a portable digital electronic instrument Expired CA961112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20640771A 1971-12-09 1971-12-09

Publications (1)

Publication Number Publication Date
CA961112A true CA961112A (en) 1975-01-14

Family

ID=54545857

Family Applications (1)

Application Number Title Priority Date Filing Date
CA152,195A Expired CA961112A (en) 1971-12-09 1972-09-20 Low battery voltage indicator for a portable digital electronic instrument

Country Status (6)

Country Link
JP (1) JPS4871327U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA961112A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2254592B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2164381A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1363175A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MY (1) MY7500233A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54744Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1976-03-10 1979-01-16
JPS5835471A (ja) * 1981-08-28 1983-03-02 Canon Inc 電池電圧検出装置
GB2108342B (en) * 1981-10-20 1986-01-15 Itt Ind Ltd Power-on reset circuit
CN114578151B (zh) * 2022-01-13 2025-08-26 西安理工大学 集成的电平检测芯片电路及应用

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839500U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-09-13 1973-05-17

Also Published As

Publication number Publication date
JPS4871327U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-09-07
DE2254592B2 (de) 1974-11-14
FR2164381A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-07-27
GB1363175A (en) 1974-08-14
DE2254592A1 (de) 1973-06-14
MY7500233A (en) 1975-12-31

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