JPS52120A - Key input device - Google Patents

Key input device

Info

Publication number
JPS52120A
JPS52120A JP50076274A JP7627475A JPS52120A JP S52120 A JPS52120 A JP S52120A JP 50076274 A JP50076274 A JP 50076274A JP 7627475 A JP7627475 A JP 7627475A JP S52120 A JPS52120 A JP S52120A
Authority
JP
Japan
Prior art keywords
input device
key input
reduce number
wirings
diodes
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
JP50076274A
Other languages
Japanese (ja)
Inventor
Masanori Fujii
Koichiro Toyoda
Tetsuo Ito
Toshiharu Suzuki
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP50076274A priority Critical patent/JPS52120A/en
Publication of JPS52120A publication Critical patent/JPS52120A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To reduce number of diodes to reduce number of wirings between keyboard and operational circuits.
COPYRIGHT: (C)1977,JPO&Japio
JP50076274A 1975-06-20 1975-06-20 Key input device Pending JPS52120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50076274A JPS52120A (en) 1975-06-20 1975-06-20 Key input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50076274A JPS52120A (en) 1975-06-20 1975-06-20 Key input device

Publications (1)

Publication Number Publication Date
JPS52120A true JPS52120A (en) 1977-01-05

Family

ID=13600663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50076274A Pending JPS52120A (en) 1975-06-20 1975-06-20 Key input device

Country Status (1)

Country Link
JP (1) JPS52120A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844635U (en) * 1981-09-21 1983-03-25 横河電機株式会社 key input device
JPS5890431U (en) * 1981-12-11 1983-06-18 株式会社アドバンテスト input device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844635U (en) * 1981-09-21 1983-03-25 横河電機株式会社 key input device
JPS5890431U (en) * 1981-12-11 1983-06-18 株式会社アドバンテスト input device

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