JPH0436662U - - Google Patents

Info

Publication number
JPH0436662U
JPH0436662U JP7812590U JP7812590U JPH0436662U JP H0436662 U JPH0436662 U JP H0436662U JP 7812590 U JP7812590 U JP 7812590U JP 7812590 U JP7812590 U JP 7812590U JP H0436662 U JPH0436662 U JP H0436662U
Authority
JP
Japan
Prior art keywords
magnetic
amplifier
magnetic card
reading device
detection signals
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
JP7812590U
Other languages
Japanese (ja)
Other versions
JP2521544Y2 (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 JP7812590U priority Critical patent/JP2521544Y2/en
Publication of JPH0436662U publication Critical patent/JPH0436662U/ja
Application granted granted Critical
Publication of JP2521544Y2 publication Critical patent/JP2521544Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案の１実施例の磁気カード読取装
置の構成図であり、第２図はその磁気ヘツドギヤ
ツプ配置図であり、第３図はその書込用磁気ヘツ
ドのギヤツプ配置図であり、第４図は磁気カード
図であり、第５図は出力波形再生例を示す。 １……磁気ヘツド、２……加算増幅器、３……
減算増幅器、４……コンパレーター１、５……コ
ンパレーター２、６……書き込み磁気ヘツド、１
１……磁気カード、１２……磁気コード。 FIG. 1 is a configuration diagram of a magnetic card reading device according to an embodiment of the present invention, FIG. 2 is a diagram showing the arrangement of the magnetic head gap thereof, and FIG. 3 is a diagram showing the arrangement of the gap of the magnetic writing head. FIG. 4 is a diagram of a magnetic card, and FIG. 5 shows an example of output waveform reproduction. 1...Magnetic head, 2...Summing amplifier, 3...
Subtraction amplifier, 4... Comparator 1, 5... Comparator 2, 6... Write magnetic head, 1
1...Magnetic card, 12...Magnetic code.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁気カードなどの磁気バーコード読取装置にお
いて同一トラツクの磁気コードを２つのギヤツプ
で検出する磁気ヘツドと２つの検出信号を加算す
る増幅器と減算する増幅器により構成し、前記加
算増幅器の出力から信号コードを読出し減算増幅
器の出力レベルから、２枚貼り合せによる磁気カ
ードの偽造を判別することを特徴とする磁気カー
ド読取装置。 A magnetic barcode reading device such as a magnetic card is configured with a magnetic head that detects the magnetic code of the same track with two gaps, an amplifier that adds the two detection signals, and an amplifier that subtracts the two detection signals, and reads the signal code from the output of the summing amplifier. A magnetic card reading device characterized by determining whether a magnetic card is a forgery made by pasting two cards together based on the output level of a readout subtraction amplifier.
JP7812590U 1990-07-25 1990-07-25 Magnetic card reader Expired - Lifetime JP2521544Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7812590U JP2521544Y2 (en) 1990-07-25 1990-07-25 Magnetic card reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7812590U JP2521544Y2 (en) 1990-07-25 1990-07-25 Magnetic card reader

Publications (2)

Publication Number Publication Date
JPH0436662U true JPH0436662U (en) 1992-03-27
JP2521544Y2 JP2521544Y2 (en) 1996-12-25

Family

ID=31621120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7812590U Expired - Lifetime JP2521544Y2 (en) 1990-07-25 1990-07-25 Magnetic card reader

Country Status (1)

Country Link
JP (1) JP2521544Y2 (en)

Also Published As

Publication number Publication date
JP2521544Y2 (en) 1996-12-25

Similar Documents

Publication Publication Date Title
JPH0436662U (en)
JPH02111579U (en)
JPS60194757U (en) magnetic recording and reproducing device
JPH01181166U (en)
JPS63118792U (en)
JPS6324748U (en)
JPS5887177U (en) magnetic disk device
JPS5950157U (en) Image signal amplification circuit
JPH0164136U (en)
JPS5917043U (en) optical head
JPS5839776U (en) Record disc track interval detection device
JPH01174703U (en)
JPS63142694U (en)
JPS6023993U (en) address reader
JPS6372728U (en)
JPS58165730U (en) Recording/playback device
JPH01170370U (en)
JPS6381301U (en)
JPS5935806U (en) position detector
JPS6374760U (en)
JPS5830912U (en) magnetic disk device
JPS63118793U (en)
JPS58124842U (en) magnetic information reader
JPS6030562U (en) magnetic recording and reproducing device
JPS6347464U (en)