JPS58109919A - Incorrect input preventing device - Google Patents
Incorrect input preventing deviceInfo
- Publication number
- JPS58109919A JPS58109919A JP56208414A JP20841481A JPS58109919A JP S58109919 A JPS58109919 A JP S58109919A JP 56208414 A JP56208414 A JP 56208414A JP 20841481 A JP20841481 A JP 20841481A JP S58109919 A JPS58109919 A JP S58109919A
- Authority
- JP
- Japan
- Prior art keywords
- key
- code
- information
- input
- comparison circuit
- 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
Links
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は、不正入力防止装置に関するものである。[Detailed description of the invention] The present invention relates to an unauthorized input prevention device.
この発明は、入力装置に不正入力を防止する機能を持た
せることにより、不正入力を防止できる装置を提供する
事を目的としている。An object of the present invention is to provide a device that can prevent unauthorized input by providing the input device with a function to prevent unauthorized input.
以下、この発明の一実施例を図について説明する。An embodiment of the present invention will be described below with reference to the drawings.
図面において、（１）はコードを伴なう情報を入力する
キーボード、（２）はコード比較回路、（３）はコード
を記憶しておくメモリ、（４）は値の大小比較を行なう
か否かを制御するキー、（５）は値の大小を比較する比
較回路、（６）は大小比較の基準値を記憶するメモリで
ある。In the drawing, (1) is a keyboard for inputting information with codes, (2) is a code comparison circuit, (3) is a memory for storing codes, and (4) is whether or not to compare values. (5) is a comparison circuit that compares the magnitude of values; (6) is a memory that stores a reference value for magnitude comparison.
キーボード（１）で入力されたコードを伴なう情報は、
コード比較回路（２）に渡され、メモリ（３）に記憶さ
れている所定のコードと比較され選別される。The information accompanied by the code entered on the keyboard (1) is
The code is passed to a code comparison circuit (2), and compared and selected with a predetermined code stored in a memory (3).
所定コードとは、例えば、金融機関の預金引出しコード
等である。コードが等しくない場合、情報は入力装置か
らそのまま送り出される。コードが等しい場合、つまり
チェックを要するコードの場合、情報はキー（４）部分
と値の大小を比較する比較回路（５）に流れる。キー（
４）が入力装置に接続されている場合は、キー（４）部
分のスイッチはＯＮになり、情報は大小比較が行なわれ
づ、無条件に入力装置から送り出される。キー（４）が
入力装置に接続されていない場合は、キー（４）部分の
スイッチはＯＦＦになり、情報の大小比較が行なわれる
。大小比較は、メモリ（６）に記憶されている基準値と
比−較され、基準値より大きければ比較回路（５）で阻
止され、情報は入力装置からは送り出されない。又基準
値より小さければ情報は入力装置から送り出される。The predetermined code is, for example, a deposit withdrawal code of a financial institution. If the codes are not equal, the information is sent straight out of the input device. If the codes are equal, that is, if the codes require checking, the information flows to a comparison circuit (5) that compares the key (4) portion with the value. Key(
4) is connected to the input device, the switch of the key (4) is turned on, and the information is sent out from the input device unconditionally without being compared in size. When the key (4) is not connected to the input device, the switch of the key (4) is turned OFF, and the magnitude of the information is compared. In the magnitude comparison, the value is compared with a reference value stored in the memory (6), and if it is larger than the reference value, it is blocked by the comparison circuit (5) and the information is not sent out from the input device. If the value is smaller than the reference value, the information is sent out from the input device.
従ってキー（４）が接続されておけば、比較回路（５）
の阻止機能は停止され、キー（４）が接続されていなけ
れば、比較回路（５）の阻止機能は働く。すなわち、キ
ーによって情報を制御する動作を行なう。Therefore, if the key (4) is connected, the comparator circuit (5)
The blocking function of the comparator circuit (5) is stopped, and if the key (4) is not connected, the blocking function of the comparator circuit (5) is activated. That is, the key performs an operation of controlling information.
なお、上記実施例ではキー（４）をスイッチで構成した
が、磁気カードでキーの機能をもたせてもよい。In the above embodiment, the key (4) is constituted by a switch, but a magnetic card may also have the function of the key.
以上のように、この発明によれば、大きな値を入力する
際にキーが必要になり、操作員による不正入力を防止で
き、その利用価値は大なるものがある。As described above, according to the present invention, a key is required when inputting a large value, and unauthorized input by an operator can be prevented, which has great utility value.
図面はこの発明の一実施例による不正入力防止装置の構
成を示すブロック図で、（１）はキーボード、（２）は
コード比較回路、（３）と（６）はメモリ、（４）はキ
ー、（５）は大小比較回路を各々示している。The drawing is a block diagram showing the configuration of an unauthorized input prevention device according to an embodiment of the present invention, in which (1) is a keyboard, (2) is a code comparison circuit, (3) and (6) are memories, and (4) is a key. , (5) respectively show magnitude comparison circuits.
Claims (1)
比較して所定のコードを伴なう情報の流れを変えるコー
ド比較回路、この比較回路で選別された所定のコードを
伴なう情報中の値を基準値と比較して、基準値以上の値
を有する情報の通過を阻止する大小比較回路、上記大小
比較回路の阻止機能を停止させるキーを備えた不正入力
防止装置。A keyboard for inputting information accompanied by a code, a code comparison circuit that compares codes and changes the flow of information associated with a predetermined code, and a value in the information associated with a predetermined code selected by this comparison circuit. An unauthorized input prevention device comprising: a size comparison circuit that compares a value with a reference value and blocks passage of information having a value equal to or greater than the reference value; and a key that stops the blocking function of the size comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56208414A JPS58109919A (en) | 1981-12-23 | 1981-12-23 | Incorrect input preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56208414A JPS58109919A (en) | 1981-12-23 | 1981-12-23 | Incorrect input preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58109919A true JPS58109919A (en) | 1983-06-30 |
Family
ID=16555836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56208414A Pending JPS58109919A (en) | 1981-12-23 | 1981-12-23 | Incorrect input preventing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58109919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006187961A (en) * | 2005-01-06 | 2006-07-20 | Gifu Plast Ind Co Ltd | Molding method of assembled box by in-mold molding |
-
1981
- 1981-12-23 JP JP56208414A patent/JPS58109919A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006187961A (en) * | 2005-01-06 | 2006-07-20 | Gifu Plast Ind Co Ltd | Molding method of assembled box by in-mold molding |
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