JPS5844635U - key input device - Google Patents

key input device

Info

Publication number
JPS5844635U
JPS5844635U JP14006581U JP14006581U JPS5844635U JP S5844635 U JPS5844635 U JP S5844635U JP 14006581 U JP14006581 U JP 14006581U JP 14006581 U JP14006581 U JP 14006581U JP S5844635 U JPS5844635 U JP S5844635U
Authority
JP
Japan
Prior art keywords
signals
keyboard
transmitting
scan
return
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
JP14006581U
Other languages
Japanese (ja)
Other versions
JPS6222898Y2 (en
Inventor
正博 伊藤
Original Assignee
横河電機株式会社
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 横河電機株式会社 filed Critical 横河電機株式会社
Priority to JP14006581U priority Critical patent/JPS5844635U/en
Publication of JPS5844635U publication Critical patent/JPS5844635U/en
Application granted granted Critical
Publication of JPS6222898Y2 publication Critical patent/JPS6222898Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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人力装置の一実施例図、第２
図はタイミングチャートである。 １・・・マイクーロプロセッサ、１０・・・キーボード
、２０・・・キーボードコントローラ、３１．３２・・
・デコーダ、４１・・・論理回路、４２・・・モノマル
チバイブレーク、４３川ゲート、４４・・・分周器、４
５・・・インバータ。Figure 1 is a diagram of an embodiment of the key human power device according to the present invention, Figure 2
The figure is a timing chart. 1... Microprocessor, 10... Keyboard, 20... Keyboard controller, 31.32...
・Decoder, 41... Logic circuit, 42... Mono multi-by-break, 43 River gate, 44... Frequency divider, 4
5...Inverter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数個のキーをスキャンラインとリターンラインの格子
点にマトリクス状に配置してなるキーボードと、マイク
ロプロセッサと信号の授受が可能で前記キーボードにス
キャンライン信号を送出すると共にリターン信号を受信
し送受のタイミングに基づき操作されたキーを検出する
ことのできるキーボードコントローラよりなるキー人力
装置において、前記キーボードコントローラより送出さ
れるスキャン信号を交互の期間にそれぞれデコードしそ
の信号を前記キーボードのスキャンラインに供給する２
個のデコーダと、前記リターン信号により起動する再ト
リガ可能なモノマルチバイブレータと、通常はクロック
を分周、し前記モノマルチバイブレータが作動したとき
はその期間中のみ分周動作が停止するように構成され前
記２個のデコーダのデコード動作を制御する互いに逆位
相の関係にある信号を送出する分周手段を具備したこと
を特徴とするキー人力装置。A keyboard consisting of a plurality of keys arranged in a matrix at grid points of scan lines and return lines, and a microprocessor capable of transmitting and receiving signals, transmitting scan line signals to the keyboard and receiving return signals. In a key-powered device comprising a keyboard controller capable of detecting operated keys based on timing, scan signals sent from the keyboard controller are decoded at alternate periods and the signals are supplied to scan lines of the keyboard. 2
a decoder, a retriggerable mono multivibrator activated by the return signal, and a structure that normally divides the clock, and when the mono multivibrator is activated, the frequency division operation is stopped only during that period. 2. A key-powered device comprising frequency dividing means for transmitting signals having opposite phases to each other and controlling the decoding operations of the two decoders.
JP14006581U 1981-09-21 1981-09-21 key input device Granted JPS5844635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14006581U JPS5844635U (en) 1981-09-21 1981-09-21 key input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14006581U JPS5844635U (en) 1981-09-21 1981-09-21 key input device

Publications (2)

Publication Number Publication Date
JPS5844635U true JPS5844635U (en) 1983-03-25
JPS6222898Y2 JPS6222898Y2 (en) 1987-06-11

Family

ID=29933238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14006581U Granted JPS5844635U (en) 1981-09-21 1981-09-21 key input device

Country Status (1)

Country Link
JP (1) JPS5844635U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60124997A (en) * 1983-12-12 1985-07-04 三菱電機株式会社 Cooler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52120A (en) * 1975-06-20 1977-01-05 Sanyo Electric Co Ltd Key input device
JPS5627438A (en) * 1979-08-10 1981-03-17 Sony Corp Key input circuit
JPS5633728A (en) * 1979-08-24 1981-04-04 Illinois Tool Works Keyboard having repeat rate of outside program and repeated delay rate counter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52120A (en) * 1975-06-20 1977-01-05 Sanyo Electric Co Ltd Key input device
JPS5627438A (en) * 1979-08-10 1981-03-17 Sony Corp Key input circuit
JPS5633728A (en) * 1979-08-24 1981-04-04 Illinois Tool Works Keyboard having repeat rate of outside program and repeated delay rate counter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60124997A (en) * 1983-12-12 1985-07-04 三菱電機株式会社 Cooler
JPH0470800B2 (en) * 1983-12-12 1992-11-11 Mitsubishi Electric Corp

Also Published As

Publication number Publication date
JPS6222898Y2 (en) 1987-06-11

Similar Documents

Publication Publication Date Title
JPS6095721U (en) electronic volume circuit
JPS5844635U (en) key input device
JPS5871804U (en) automatic switching signal generator
JPS6292804U (en)
JPS6085490U (en) remote control device
JPS58176231U (en) Operation control device
JPS5984633U (en) key input device
JPS58189628U (en) digital remote control device
JPS6035649U (en) Operation mode recognition device
JPS6074338U (en) Clock generation circuit
JPS6055139U (en) Radio receiver with calculator
JPS6033681U (en) digital clock correction circuit
JPS605537U (en) small electronic calculator
JPS614228U (en) display device
JPS601037U (en) binary circuit
JPS6372634U (en)
JPS59115381U (en) Digital time display device
JPS5851353U (en) interrupt controller
JPS614235U (en) Signal processor input/output control device
JPS5953446U (en) distributed keyboard
JPS6047349U (en) Abnormal transmission stop circuit
JPS59137641U (en) Drive pulse generation circuit
JPS59132239U (en) Channel selection device
JPS5958839U (en) power control circuit
JPS59114664U (en) synchronous circuit