JPS51114023A - A control unit for in and output signals - Google Patents

A control unit for in and output signals

Info

Publication number
JPS51114023A
JPS51114023A JP50039474A JP3947475A JPS51114023A JP S51114023 A JPS51114023 A JP S51114023A JP 50039474 A JP50039474 A JP 50039474A JP 3947475 A JP3947475 A JP 3947475A JP S51114023 A JPS51114023 A JP S51114023A
Authority
JP
Japan
Prior art keywords
control unit
output signals
duty
indicator
ensuring
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
JP50039474A
Other languages
Japanese (ja)
Inventor
Tosaku Nakanishi
Yuichi Sato
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP50039474A priority Critical patent/JPS51114023A/en
Publication of JPS51114023A publication Critical patent/JPS51114023A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Achieving larger indicator duty where such duty is affected due to increase in the number of digit positions in desk calculators employing LSI circuit elements, and, at the same time, reducing the number of in and output LSI signal terminals while ensuring a longer service life of the indicator body.
COPYRIGHT: (C)1976,JPO&Japio
JP50039474A 1975-03-31 1975-03-31 A control unit for in and output signals Pending JPS51114023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50039474A JPS51114023A (en) 1975-03-31 1975-03-31 A control unit for in and output signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50039474A JPS51114023A (en) 1975-03-31 1975-03-31 A control unit for in and output signals

Publications (1)

Publication Number Publication Date
JPS51114023A true JPS51114023A (en) 1976-10-07

Family

ID=12554053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50039474A Pending JPS51114023A (en) 1975-03-31 1975-03-31 A control unit for in and output signals

Country Status (1)

Country Link
JP (1) JPS51114023A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223220A (en) * 1975-08-18 1977-02-22 Toshiba Corp Method of key loading of liquid crystal display type electronic unit a nd integrated circuit
JPS5371530A (en) * 1976-12-08 1978-06-26 Hitachi Ltd Input circuit
JPS5379437A (en) * 1976-12-24 1978-07-13 Toshiba Corp Key signal read-in system
JPS5622514U (en) * 1979-07-24 1981-02-28
JPS6086655A (en) * 1983-10-17 1985-05-16 Sanyo Electric Co Ltd Parallel connection method of microprocessor
US4551716A (en) * 1981-06-30 1985-11-05 Tokyo Shibaura Denki Kabushiki Kaisha Display control for electronic calculator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113415A (en) * 1975-03-28 1976-10-06 Toshiba Corp Key reading system and devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113415A (en) * 1975-03-28 1976-10-06 Toshiba Corp Key reading system and devices

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223220A (en) * 1975-08-18 1977-02-22 Toshiba Corp Method of key loading of liquid crystal display type electronic unit a nd integrated circuit
JPS5818649B2 (en) * 1975-08-18 1983-04-14 株式会社東芝 Key signal reading circuit for liquid crystal display type electronic device
JPS5371530A (en) * 1976-12-08 1978-06-26 Hitachi Ltd Input circuit
JPS5543696B2 (en) * 1976-12-08 1980-11-07
JPS5379437A (en) * 1976-12-24 1978-07-13 Toshiba Corp Key signal read-in system
JPS5545931B2 (en) * 1976-12-24 1980-11-20
JPS5622514U (en) * 1979-07-24 1981-02-28
US4551716A (en) * 1981-06-30 1985-11-05 Tokyo Shibaura Denki Kabushiki Kaisha Display control for electronic calculator
JPS6086655A (en) * 1983-10-17 1985-05-16 Sanyo Electric Co Ltd Parallel connection method of microprocessor
JPH0120461B2 (en) * 1983-10-17 1989-04-17 Sanyo Electric Co

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