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JPS559220A - Keyboard system - Google Patents

Keyboard system

Info

Publication number
JPS559220A
JPS559220A JP8006378A JP8006378A JPS559220A JP S559220 A JPS559220 A JP S559220A JP 8006378 A JP8006378 A JP 8006378A JP 8006378 A JP8006378 A JP 8006378A JP S559220 A JPS559220 A JP S559220A
Authority
JP
Japan
Prior art keywords
potential
wires
read
detected
negative potential
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
JP8006378A
Other languages
English (en)
Inventor
Kuniaki Makabe
Masaharu Kimura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8006378A priority Critical patent/JPS559220A/ja
Publication of JPS559220A publication Critical patent/JPS559220A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)
JP8006378A 1978-06-30 1978-06-30 Keyboard system Pending JPS559220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8006378A JPS559220A (en) 1978-06-30 1978-06-30 Keyboard system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8006378A JPS559220A (en) 1978-06-30 1978-06-30 Keyboard system

Publications (1)

Publication Number Publication Date
JPS559220A true JPS559220A (en) 1980-01-23

Family

ID=13707766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8006378A Pending JPS559220A (en) 1978-06-30 1978-06-30 Keyboard system

Country Status (1)

Country Link
JP (1) JPS559220A (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771038A (en) * 1980-10-22 1982-05-01 Nec Home Electronics Ltd Key switch scanning system
JPS57174731A (en) * 1981-04-20 1982-10-27 Matsushita Electric Ind Co Ltd Controller of audio device and the like
JPS5885220U (ja) * 1981-11-30 1983-06-09 株式会社田村電機製作所 デ−タ読み取り回路
JPS6034250U (ja) * 1983-08-13 1985-03-08 松下電工株式会社 キツチンユニツト
JPS643721A (en) * 1987-06-25 1989-01-09 Silver Seiko Key input device
JPS6478316A (en) * 1988-08-20 1989-03-23 Brother Ind Ltd Electronic controller capable of repeating action
JPH02289241A (ja) * 1989-02-24 1990-11-29 Abiomed Inc 外科用ステープラー

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771038A (en) * 1980-10-22 1982-05-01 Nec Home Electronics Ltd Key switch scanning system
JPS57174731A (en) * 1981-04-20 1982-10-27 Matsushita Electric Ind Co Ltd Controller of audio device and the like
JPS5885220U (ja) * 1981-11-30 1983-06-09 株式会社田村電機製作所 デ−タ読み取り回路
JPS6034250U (ja) * 1983-08-13 1985-03-08 松下電工株式会社 キツチンユニツト
JPS6211476Y2 (ja) * 1983-08-13 1987-03-18
JPS643721A (en) * 1987-06-25 1989-01-09 Silver Seiko Key input device
JPS6478316A (en) * 1988-08-20 1989-03-23 Brother Ind Ltd Electronic controller capable of repeating action
JPH02289241A (ja) * 1989-02-24 1990-11-29 Abiomed Inc 外科用ステープラー

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