JPH0433136U - - Google Patents

Info

Publication number
JPH0433136U
JPH0433136U JP7267290U JP7267290U JPH0433136U JP H0433136 U JPH0433136 U JP H0433136U JP 7267290 U JP7267290 U JP 7267290U JP 7267290 U JP7267290 U JP 7267290U JP H0433136 U JPH0433136 U JP H0433136U
Authority
JP
Japan
Prior art keywords
serial
parallel
key
serial converter
input terminal
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
JP7267290U
Other languages
Japanese (ja)
Other versions
JP2548023Y2 (en
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 filed Critical
Priority to JP1990072672U priority Critical patent/JP2548023Y2/en
Publication of JPH0433136U publication Critical patent/JPH0433136U/ja
Application granted granted Critical
Publication of JP2548023Y2 publication Critical patent/JP2548023Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Input From Keyboards Or The Like (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るキー入力装置の一実施例
のブロツク回路であり、第２図は従来のキー入力
装置のブロツク回路図であり、第３図は他の従来
のキー入力装置のブロツク回路図である。 ＳＲ１〜ＳＲｎ……Ｐ／Ｓ変換器、ＳＷ１〜Ｓ
Ｗｎ……スイツチ、１０……マイクロコンピユー
タ。 FIG. 1 is a block circuit diagram of an embodiment of a key input device according to the present invention, FIG. 2 is a block circuit diagram of a conventional key input device, and FIG. 3 is a block circuit diagram of another conventional key input device. It is a circuit diagram. SR1 to SRn ...P/S converter, SW1 to S
Wn ...Switch, 10...Microcomputer.

Claims (1)

【実用新案登録請求の範囲】 複数のキースイツチと、 該複数のキースイツチの操作による各キースイ
ツチからのキー入力データが各パラレル入力端子
から入力されるパラレル／シリアル変換器と、 該パラレル／シリアル変換器のシリアル出力端
子にシリアル入力端子が接続された中央演算処理
装置とを有し、 上記複数のキースイツチの操作による各キー入
力データを上記パラレル／シリアル変換器のシリ
アル出力端子からシリアル入力端子を介して上記
中央演算処理装置に入力することを特徴とするキ
ー入力装置。[Scope of Claim for Utility Model Registration] A plurality of key switches, a parallel/serial converter into which key input data from each key switch is inputted from each parallel input terminal by the operation of the plurality of key switches, and a parallel/serial converter of the parallel/serial converter. and a central processing unit having a serial input terminal connected to a serial output terminal, and transmits each key input data from the operation of the plurality of key switches from the serial output terminal of the parallel/serial converter to the serial input terminal. A key input device characterized by inputting information to a central processing unit.
JP1990072672U 1990-07-10 1990-07-10 Key input device Expired - Lifetime JP2548023Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990072672U JP2548023Y2 (en) 1990-07-10 1990-07-10 Key input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990072672U JP2548023Y2 (en) 1990-07-10 1990-07-10 Key input device

Publications (2)

Publication Number Publication Date
JPH0433136U true JPH0433136U (en) 1992-03-18
JP2548023Y2 JP2548023Y2 (en) 1997-09-17

Family

ID=31610817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990072672U Expired - Lifetime JP2548023Y2 (en) 1990-07-10 1990-07-10 Key input device

Country Status (1)

Country Link
JP (1) JP2548023Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372631U (en) * 1986-10-30 1988-05-16
JPH03106291A (en) * 1989-09-20 1991-05-02 Toshiba Corp Key extension system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372631U (en) * 1986-10-30 1988-05-16
JPH03106291A (en) * 1989-09-20 1991-05-02 Toshiba Corp Key extension system

Also Published As

Publication number Publication date
JP2548023Y2 (en) 1997-09-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term