JPH05325427A - Card reader terminal equipment - Google Patents

Card reader terminal equipment

Info

Publication number
JPH05325427A
JPH05325427A JP13398892A JP13398892A JPH05325427A JP H05325427 A JPH05325427 A JP H05325427A JP 13398892 A JP13398892 A JP 13398892A JP 13398892 A JP13398892 A JP 13398892A JP H05325427 A JPH05325427 A JP H05325427A
Authority
JP
Japan
Prior art keywords
signal
card
time width
card reader
reader 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.)
Withdrawn
Application number
JP13398892A
Other languages
Japanese (ja)
Inventor
Yoshihisa Honma
義久 本間
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP13398892A priority Critical patent/JPH05325427A/en
Publication of JPH05325427A publication Critical patent/JPH05325427A/en
Withdrawn legal-status Critical Current

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  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To provide a card reader terminal equipment which does not need a demodulation IC, and therefore, is advantageous in its cost, power consumption, space, etc. CONSTITUTION:The terminal equipment is constituted so that a card signal read by a magnetic head 101 is amplified and shaped, and thereafter, inputted to a microcomputer 105, and in the microcomputer 105, while obtaining time width of a time signal or a '0' data signal from the card signal whose waveform is shaped, '1' or '0' of the card signal is discriminated by its obtained time width.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、IDカードシステム等
に使用される磁気カードのカードリーダ端末機に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card reader terminal for a magnetic card used in an ID card system or the like.

【0002】[0002]

【従来の技術】近時、鉄道の改札、キャッシュカード、
クレジットカード、IDカード等のシステムにおいて、
人−機械インタフェースとしてカードリーダ端末機が数
多く使用されている。図3は、このようなカードリーダ
端末機100の構成例を示した図である。図において、
磁気ヘッド101から読取られたカード信号は、増幅回
路102で増幅された後、波形整形回路103で図4
(a)のように整形される。
2. Description of the Related Art Recently, railway ticket gates, cash cards,
In systems such as credit cards and ID cards,
Many card reader terminals are used as human-machine interfaces. FIG. 3 is a diagram showing a configuration example of such a card reader terminal 100. In the figure,
The card signal read from the magnetic head 101 is amplified by the amplifier circuit 102, and then amplified by the waveform shaping circuit 103.
It is shaped like (a).

【0003】ところで、カードが磁気ヘッド101を通
過する速さは、その都度異なるので、波形整形されたカ
ード信号のクロック信号の間隔(=刻時信号の間隔=
“0”データの時間幅)もその都度、伸び縮みする。そ
の為、カード信号の“1”,“0”を判断するには、そ
の都度、基準となるクロック信号(間隔が“0”データ
の時間幅と等しい。)をカード信号から抽出しなければ
ならない。従来、この動作は復調回路である復調用IC
104内において行われていた。
The speed at which the card passes through the magnetic head 101 is different each time. Therefore, the clock signal interval of the waveform-shaped card signal (= interval of clock signal =
The time width of "0" data) also expands and contracts each time. Therefore, in order to judge "1" or "0" of the card signal, the reference clock signal (the interval is equal to the time width of "0" data) must be extracted from the card signal each time. .. Conventionally, this operation is a demodulation IC which is a demodulation circuit.
It was done in 104.

【0004】復調用IC104内で、カード信号(図4
(a))から分離されたクロック信号(図4(b))と
データ信号(図4(c))は、別々にマイクロコンピュ
ータ105に入力され、このマイクロコンピュータ10
5内で、クロック信号のサンプリング動作により、デー
タ信号の“1”,“0”が判断されている。ところが、
復調用IC104が必要なので、コスト、消費電力、ス
ペース等で問題であった。
In the demodulation IC 104, the card signal (see FIG.
The clock signal (FIG. 4B) and the data signal (FIG. 4C) separated from (a) are input to the microcomputer 105 separately, and the microcomputer 10
In 5, the data signal "1" or "0" is determined by the sampling operation of the clock signal. However,
Since the demodulation IC 104 is necessary, there are problems in cost, power consumption, space, and the like.

【0005】[0005]

【発明が解決しようとする課題】本発明は上記事情に鑑
みてなされたものであり、復調用ICが不要で、従っ
て、コスト、消費電力、スペース等で有利なカードリー
ダ端末機を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a card reader terminal device that does not require a demodulation IC and is therefore advantageous in terms of cost, power consumption, space, and the like. With the goal.

【0006】[0006]

【課題を解決するための手段】本発明のカードリーダ端
末機は、磁気ヘッドで読み取られたカード信号を、増幅
回路と波形整形回路で増幅整形した後、マイクロコンピ
ュータに入力し、上記マイクロコンピュータにおいて、
上記波形整形されたカード信号から刻時信号または
“0”データ信号の時間幅を得ながら、その得た時間幅
によって、上記カード信号の“1”,“0”を判別する
構成となっている。
In the card reader terminal of the present invention, a card signal read by a magnetic head is amplified and shaped by an amplifier circuit and a waveform shaping circuit and then input to a microcomputer. ,
The time width of the clock signal or the "0" data signal is obtained from the waveform-shaped card signal, and "1" or "0" of the card signal is discriminated by the obtained time width. ..

【0007】[0007]

【作用】本発明のカードリーダ端末機では、磁気ヘッド
で読み取られたカード信号を、増幅回路と波形整形回路
で増幅整形した後、直接、マイクロコンピュータに入力
して、そのカード信号の刻時信号または“0”データ信
号の時間幅を得ながら、その得た時間幅によって、上記
カード信号の“1”,“0”を判別するので、復調回路
である復調用ICが不要となり、コスト、消費電力、ス
ペース等で有利である。
In the card reader terminal of the present invention, the card signal read by the magnetic head is amplified and shaped by the amplifying circuit and the waveform shaping circuit, and then directly input to the microcomputer to generate a clock signal of the card signal. Alternatively, while obtaining the time width of the "0" data signal and determining "1" or "0" of the card signal according to the obtained time width, the demodulation IC, which is a demodulation circuit, is not required, resulting in cost and consumption. It is advantageous in terms of power and space.

【0008】[0008]

【実施例】図1は本発明によるカードリーダ端末機1の
一実施例の構成図である。以下、図1に基づいて本実施
例の構成と動作を説明する。磁気ヘッド101で読み取
られたカード信号は、増幅回路102と波形整形回路1
03で増幅整形された後、直接、マイクロコンピュータ
105に入力される。マイクロコンピュータ105内で
は、まず、入力されたカード信号のデータの前に記録さ
れている刻時信号(“0”データ信号の連続)の時間幅
Aを測定し。次に、カード信号の“1”,“0”を判別
する基準の時間幅X(例えば、Aの(3/4)倍とする)
を算出する。
1 is a block diagram of an embodiment of a card reader terminal 1 according to the present invention. The configuration and operation of this embodiment will be described below with reference to FIG. The card signal read by the magnetic head 101 is amplified by the amplifier circuit 102 and the waveform shaping circuit 1.
After being amplified and shaped in 03, it is directly input to the microcomputer 105. In the microcomputer 105, first, the time width A of the clock signal (continuous "0" data signal) recorded before the input card signal data is measured. Next, a reference time width X for discriminating between "1" and "0" of the card signal (for example, (3/4) times A)
To calculate.

【0009】次いで、次のカード信号の時間幅Aを測定
し、このAと上記の算出したXを比較して、A>Xな
ら、このカード信号を“0”と判断して記憶すると共
に、このAから新たにXを算出する。一方、上記の比較
結果がA≦Xなら、このカード信号を“1”と判断して
記憶する。
Next, the time width A of the next card signal is measured, this A is compared with the above calculated X, and if A> X, this card signal is judged to be "0" and stored. X is newly calculated from this A. On the other hand, if the comparison result is A ≦ X, this card signal is determined to be “1” and stored.

【0010】次いで、次のカード信号の時間幅Aを測定
し、このAと上記の新たに算出したXを比較して、A>
Xなら、このカード信号を“0”と判断して記憶すると
共に、このAから新たにXを算出する。一方、上記の比
較結果がA≦Xなら、このカード信号を“1”と判断し
て記憶する。
Next, the time width A of the next card signal is measured, and this A is compared with the above newly calculated X, and A>
If X, this card signal is judged to be "0" and stored, and X is newly calculated from this A. On the other hand, if the comparison result is A ≦ X, this card signal is determined to be “1” and stored.

【0011】以下、同様にカード信号の時間幅Aと基準
の時間幅Xを比較して、“1”,“0”を判別すると共
に、“0”と判別した時は基準幅Xを更新して行く。図
2の11〜20は、このような動作の概略を示したもの
である。
Similarly, the time width A of the card signal is compared with the reference time width X to determine "1" or "0", and when it is determined to be "0", the reference width X is updated. Go. Reference numerals 11 to 20 in FIG. 2 show an outline of such an operation.

【0012】[0012]

【発明の効果】本発明によれば、磁気ヘッドで読み取ら
れたカード信号を、増幅回路と波形整形回路で増幅整形
した後、直接、マイクロコンピュータに入力して、その
カード信号の刻時信号または“0”データ信号の時間幅
を得ながら、その得た時間幅によって、上記カード信号
の“1”,“0”を判別するので、復調用ICが不要と
なって、1チップのマイクロコンピュータでカード伝送
処理と親機へのデータ伝送処理が可能となり、コスト、
消費電力、スペース等で有利である。
According to the present invention, a card signal read by a magnetic head is amplified and shaped by an amplifier circuit and a waveform shaping circuit, and then directly input to a microcomputer to obtain a clock signal or a clock signal of the card signal. While the time width of the "0" data signal is obtained, "1" or "0" of the card signal is discriminated by the obtained time width, so that the demodulation IC becomes unnecessary and the one-chip microcomputer Card transmission processing and data transmission processing to the base unit are possible, which reduces costs,
It is advantageous in power consumption and space.

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

【図1】本発明によるカードリーダ端末機の一実施例の
構成図である。
FIG. 1 is a block diagram of an embodiment of a card reader terminal according to the present invention.

【図2】本発明によるカードリーダ端末機の動作の概略
を示すフロー図である。
FIG. 2 is a flowchart showing an outline of the operation of the card reader terminal according to the present invention.

【図3】従来のカードリーダ端末機の構成例図である。FIG. 3 is a diagram showing a configuration example of a conventional card reader terminal.

【図4】(a),(b),(c)は従来のカードリーダ
端末機のカード信号,クロック信号,データ信号を示し
たタイムチャートである。
4 (a), (b) and (c) are time charts showing a card signal, a clock signal and a data signal of a conventional card reader terminal.

【符号の説明】[Explanation of symbols]

1・・・カードリーダ端末機 101・・・磁気ヘッド 102・・・増幅回路 103・・・波形整形回路 105・・・マイクロコンピュータ DESCRIPTION OF SYMBOLS 1 ... Card reader terminal 101 ... Magnetic head 102 ... Amplification circuit 103 ... Waveform shaping circuit 105 ... Microcomputer

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】磁気ヘッドで読み取られたカード信号を、
増幅回路と波形整形回路で増幅整形した後、マイクロコ
ンピュータに入力し、上記マイクロコンピュータにおい
て、上記波形整形されたカード信号から刻時信号または
“0”データ信号の時間幅を得ながら、その得た時間幅
によって、上記カード信号の“1”,“0”を判別する
ようにしたことを特徴とするカードリーダ端末機。
1. A card signal read by a magnetic head,
After being amplified and shaped by an amplifier circuit and a waveform shaping circuit, the signal is input to a microcomputer, and the microcomputer obtains the time width of a clock signal or "0" data signal from the waveform shaped card signal. A card reader terminal, wherein "1" and "0" of the card signal are discriminated according to a time width.
JP13398892A 1992-05-26 1992-05-26 Card reader terminal equipment Withdrawn JPH05325427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13398892A JPH05325427A (en) 1992-05-26 1992-05-26 Card reader terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13398892A JPH05325427A (en) 1992-05-26 1992-05-26 Card reader terminal equipment

Publications (1)

Publication Number Publication Date
JPH05325427A true JPH05325427A (en) 1993-12-10

Family

ID=15117762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13398892A Withdrawn JPH05325427A (en) 1992-05-26 1992-05-26 Card reader terminal equipment

Country Status (1)

Country Link
JP (1) JPH05325427A (en)

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 19990803