JPS51113415A - Key reading system and devices - Google Patents

Key reading system and devices

Info

Publication number
JPS51113415A
JPS51113415A JP50037527A JP3752775A JPS51113415A JP S51113415 A JPS51113415 A JP S51113415A JP 50037527 A JP50037527 A JP 50037527A JP 3752775 A JP3752775 A JP 3752775A JP S51113415 A JPS51113415 A JP S51113415A
Authority
JP
Japan
Prior art keywords
devices
reading system
key reading
terminals
liquid crystal
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.)
Granted
Application number
JP50037527A
Other languages
Japanese (ja)
Other versions
JPS5818648B2 (en
Inventor
Kazuhiko Osada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP50037527A priority Critical patent/JPS5818648B2/en
Publication of JPS51113415A publication Critical patent/JPS51113415A/en
Publication of JPS5818648B2 publication Critical patent/JPS5818648B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Digital Computer Display Output (AREA)

Abstract

PURPOSE: Using one or two personal terminals and a signal input terminal as even key inputs for liquid crystal driving it is possible to read keys omitting many terminals.
COPYRIGHT: (C)1976,JPO&Japio
JP50037527A 1975-03-28 1975-03-28 key reading device Expired JPS5818648B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50037527A JPS5818648B2 (en) 1975-03-28 1975-03-28 key reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50037527A JPS5818648B2 (en) 1975-03-28 1975-03-28 key reading device

Publications (2)

Publication Number Publication Date
JPS51113415A true JPS51113415A (en) 1976-10-06
JPS5818648B2 JPS5818648B2 (en) 1983-04-14

Family

ID=12500003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50037527A Expired JPS5818648B2 (en) 1975-03-28 1975-03-28 key reading device

Country Status (1)

Country Link
JP (1) JPS5818648B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114023A (en) * 1975-03-31 1976-10-07 Sharp Corp A control unit for in and output signals
JPS5371530A (en) * 1976-12-08 1978-06-26 Hitachi Ltd Input circuit
JPS53125727A (en) * 1977-04-08 1978-11-02 Citizen Watch Co Ltd Input circuit for keyboard
JPS5622514U (en) * 1979-07-24 1981-02-28
JPS5881334A (en) * 1981-11-11 1983-05-16 Hitachi Ltd Complementary transistor circuit and information processor using it
JPS5955535A (en) * 1982-09-17 1984-03-30 ナシヨナル・セミコンダクタ−・コ−ポレ−シヨン Output pin of integrated circuit used for input signal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63144836A (en) * 1986-12-09 1988-06-17 Mitsubishi Electric Corp Forming device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168132A (en) * 1974-12-10 1976-06-12 Sharp Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168132A (en) * 1974-12-10 1976-06-12 Sharp Kk

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114023A (en) * 1975-03-31 1976-10-07 Sharp Corp A control unit for in and output signals
JPS5371530A (en) * 1976-12-08 1978-06-26 Hitachi Ltd Input circuit
JPS5543696B2 (en) * 1976-12-08 1980-11-07
JPS53125727A (en) * 1977-04-08 1978-11-02 Citizen Watch Co Ltd Input circuit for keyboard
JPS6040048B2 (en) * 1977-04-08 1985-09-09 シチズン時計株式会社 Keyboard input circuit
JPS5622514U (en) * 1979-07-24 1981-02-28
JPS5881334A (en) * 1981-11-11 1983-05-16 Hitachi Ltd Complementary transistor circuit and information processor using it
JPH0411884B2 (en) * 1981-11-11 1992-03-02 Hitachi Ltd
JPS5955535A (en) * 1982-09-17 1984-03-30 ナシヨナル・セミコンダクタ−・コ−ポレ−シヨン Output pin of integrated circuit used for input signal

Also Published As

Publication number Publication date
JPS5818648B2 (en) 1983-04-14

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