JPH02100711A - Keyboard - Google Patents

Keyboard

Info

Publication number
JPH02100711A
JPH02100711A JP63254241A JP25424188A JPH02100711A JP H02100711 A JPH02100711 A JP H02100711A JP 63254241 A JP63254241 A JP 63254241A JP 25424188 A JP25424188 A JP 25424188A JP H02100711 A JPH02100711 A JP H02100711A
Authority
JP
Japan
Prior art keywords
keyboard
lock switch
mechanical lock
information processing
processing device
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
JP63254241A
Other languages
Japanese (ja)
Inventor
Keiichi Suzuki
啓一 鈴木
Kazuo Ogata
小潟　一男
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.)
NEC Corp
Niigata Fuji Xerox Manufacturing Co Ltd
Original Assignee
NEC Corp
Niigata Fuji Xerox Manufacturing 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 NEC Corp, Niigata Fuji Xerox Manufacturing Co Ltd filed Critical NEC Corp
Priority to JP63254241A priority Critical patent/JPH02100711A/en
Publication of JPH02100711A publication Critical patent/JPH02100711A/en
Pending legal-status Critical Current

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  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To make data from a keyboard to an information processor ineffective and to protect secrecy by adding a simple circuit and a mechanical lock switch to the keyboard. CONSTITUTION:A keyboard main body 1' is equipped with a keyboard control circuit 2 and a driver DRV as well as a conventional keyboard and connected to the information processor 3. Further, a mechanical lock switch SW is provided between the driver DRV in the keyboard main body 1 and the information processor 3 and an operator turns on this mechanical lock switch SW to connect the output of the driver DRV to the ground at all times, so that no data is inputted to the information processor 3. The mechanical lock switch can be turned on and off with a key. Consequently, the operator holds on to the key after turning on the mechanical lock switch SW, inhibiting use of the keyboard by a third person.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、情報処理装置のデータエントリ装置等として
使用されるキーボードに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a keyboard used as a data entry device of an information processing device or the like.

〔従来の技術〕[Conventional technology]

従来、情報処理装置のデータエントリ装置として使用さ
れているキーボードは第２図に示すような構成であった
。オペレータがキーボード本体１のキーを押下すると、
キーボード制御回路２がこれを認識し、情報処理装置３
が判別できるコードに変換して、ドライバＤＲＶを介し
て情報処理装置３に出力していた。Conventionally, a keyboard used as a data entry device for an information processing device has a configuration as shown in FIG. When the operator presses the key on keyboard body 1,
The keyboard control circuit 2 recognizes this and the information processing device 3
is converted into a code that can be identified, and output to the information processing device 3 via the driver DRV.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のキーボードでは、キーの押下によって発
生する情報信号をコード変換する機能しかないため、電
源がオンのまま放置された装置を第三者が自由に操作す
ることができ、機密情報漏洩につながるという欠点があ
る。The conventional keyboard described above only has the function of converting the information signal generated by pressing a key into a code, so a third party can freely operate the device when the power is left on, reducing the possibility of leaking confidential information. It has the disadvantage of being connected.

また、この種の事態を回避するには、装置の電源をオフ
にするしか方法がなく、繰作途中で装置から離れなけれ
ばならないような場合、装置を再立上げしなければなら
ないため、非常に効率が落ちるという欠点もある。In addition, the only way to avoid this type of situation is to turn off the power to the equipment, and if you have to leave the equipment in the middle of an operation, you will have to restart the equipment, which is an emergency situation. It also has the disadvantage of reduced efficiency.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のキーボードは、押下されたキーに対応する信号
を発生するキーボード制御回路と、このキーボード制御
回路からの信号を情報処理装置へ出力するドライバ、と
、このドライバの出力を所定の電圧源に接続することに
より前記情報処理装置へ、の信号の出力を禁止すること
ができるメカニカル・ロック・スイッチとを含んで構成
される。The keyboard of the present invention includes a keyboard control circuit that generates a signal corresponding to a pressed key, a driver that outputs a signal from the keyboard control circuit to an information processing device, and a voltage source that converts the output of the driver. and a mechanical lock switch that can inhibit the output of a signal to the information processing device by being connected to the information processing device.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例を示すハードウェア構成であ
る。本実施例も第２図に示す従来のキーボードと同様に
キーボード本体１′は、キーボード制御回路２およびド
ライバＤＲＶを備え情報処理装置３に接続されている。FIG. 1 shows a hardware configuration showing an embodiment of the present invention. In this embodiment, similarly to the conventional keyboard shown in FIG. 2, a keyboard main body 1' includes a keyboard control circuit 2 and a driver DRV, and is connected to an information processing device 3.

本実施例は、さらにキーボード本体１中のドライバＤＲ
Ｖと情報処理装置３の間にメカニカル・ロック・スイッ
チＳＷを設け、このメカニカル・ロック・スイッチＳＷ
をオペレータがオンにすることによりドライバＤＲＶの
出力は常にグランドに接続され、情報処理装置３側では
何もデータが入力されない状態が保たれる。This embodiment further includes a driver DR in the keyboard body 1.
A mechanical lock switch SW is provided between V and the information processing device 3, and this mechanical lock switch SW
When the operator turns on the driver DRV, the output of the driver DRV is always connected to the ground, and a state is maintained in which no data is input to the information processing device 3 side.

メカニカル・ロック・スイッチＳＷは、鍵によってオン
／オフが可能であるため、オペレータはメカニカル・ロ
ック・スイッチＳＷをオンにした後、鍵を所持していれ
ば、第三者がキーボードを使用できなくなる。The mechanical lock switch SW can be turned on and off using a key, so if the operator has the key after turning on the mechanical lock switch SW, a third party will not be able to use the keyboard. .

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、従来のキーボードに簡単
な回路と、メカニカル・ロック・スイッチを付加するこ
とにより、キーボードから情報処理装置へのデータを無
効にすることが可能になり、機密保護の効果がある。As explained above, by adding a simple circuit and a mechanical lock switch to a conventional keyboard, the present invention makes it possible to invalidate data sent from the keyboard to an information processing device, thereby improving security. effective.

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

第１図は本発明の一実施例のブロック図、第２図は従来
のキーボードのブロック図である。 １．１′・・・キーボード本体、２・・・キーボード制
御部、３・・・情報処理装置、ＤＲＶ・・・ドライバＳ
Ｗ・・・メカニカル・ロック・スイッチ。FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional keyboard. 1.1'...Keyboard body, 2...Keyboard control section, 3...Information processing device, DRV...Driver S
W...Mechanical lock switch.

Claims (1)

【特許請求の範囲】[Claims] 押下されたキーに対応する信号を発生するキーボード制
御回路と、このキーボード制御回路からの信号を情報処
理装置へ出力するドライバと、このドライバの出力を所
定の電圧源に接続することにより前記情報処理装置への
信号の出力を禁止することができるメカニカル・ロック
・スイッチとを含むことを特徴とするキーボード。A keyboard control circuit that generates a signal corresponding to a pressed key, a driver that outputs a signal from this keyboard control circuit to an information processing device, and the information processing device that connects the output of this driver to a predetermined voltage source. A keyboard comprising: a mechanical lock switch capable of prohibiting output of a signal to the device.
JP63254241A 1988-10-07 1988-10-07 Keyboard Pending JPH02100711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63254241A JPH02100711A (en) 1988-10-07 1988-10-07 Keyboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63254241A JPH02100711A (en) 1988-10-07 1988-10-07 Keyboard

Publications (1)

Publication Number Publication Date
JPH02100711A true JPH02100711A (en) 1990-04-12

Family

ID=17262236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63254241A Pending JPH02100711A (en) 1988-10-07 1988-10-07 Keyboard

Country Status (1)

Country Link
JP (1) JPH02100711A (en)

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