JPS5832549U - Magnetic printed matter reading device - Google Patents
Magnetic printed matter reading deviceInfo
- Publication number
- JPS5832549U JPS5832549U JP12455681U JP12455681U JPS5832549U JP S5832549 U JPS5832549 U JP S5832549U JP 12455681 U JP12455681 U JP 12455681U JP 12455681 U JP12455681 U JP 12455681U JP S5832549 U JPS5832549 U JP S5832549U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- printed
- printed matter
- reading device
- magnetic printed
- 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
- Recording Or Reproducing By Magnetic Means (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
第１図は従来の磁気印刷物の読取装置に用いられ、かつ
こ２の考案に使用される磁電変換素子の断面図を示す。
第２図は磁気抵抗素子１１を用いた従来の磁気印刷物の
読取装置の回路図を示す。第３図はこの考案の一実施例
の磁気印刷物の読取装置の回路図を示す。第４図はこの
実施例に用いられるバンドパスフィルタ３２の帯域周波
数特性図を示す。第５図は第３図の動作を説明するため
の各部の波形図を示す。
図において、１１は磁電変換素子、１２は永久磁石、２
１は定電流回路、２３および２５は増幅器、２４はロー
パスフィルタ、３１は発振回路、３２はバンドパスフィ
ルタ、３３は検波回路を示す。FIG. 1 shows a cross-sectional view of a magnetoelectric conversion element used in a conventional magnetic printed matter reading device and used in the second invention. FIG. 2 shows a circuit diagram of a conventional magnetic printed matter reading device using a magnetoresistive element 11. As shown in FIG. FIG. 3 shows a circuit diagram of a magnetic printed matter reading device according to an embodiment of this invention. FIG. 4 shows a band frequency characteristic diagram of the band pass filter 32 used in this embodiment. FIG. 5 shows waveform diagrams of various parts for explaining the operation of FIG. 3. In the figure, 11 is a magnetoelectric conversion element, 12 is a permanent magnet, and 2
1 is a constant current circuit, 23 and 25 are amplifiers, 24 is a low-pass filter, 31 is an oscillation circuit, 32 is a band-pass filter, and 33 is a detection circuit.
Claims (1)
から情報を読取る装置であって、前記磁気印刷物の搬送
経路に設けられ、該磁気印刷物に印刷された前記磁気材
料の磁気に基づく磁界の強さに応じて電気的特性を変化
する磁電変換素子、 交流バイアスが加えられた電力を前記磁電変換素子に供
給する電力供給手段、 ・前記磁電変換素子の出力信号のうち、前記交流バイア
スの周波数成分を含む周波数帯の信号を通過−させる帯
域通過フィルタ、および 前記帯域通過フィルタの出力信号を前記交流バイアスの
周波数成分で検波して前記磁気印刷物の情報に相当する
信号を導出する検波手段を備えた、磁気印刷物の読取装
置。[Claims for Utility Model Registration] A device in which information to be read is printed with a magnetic material, and a device for reading information from the magnetic printed material, the device being provided in a conveyance path of the magnetic printed material, and comprising the magnetic material printed on the magnetic printed material. a magnetoelectric transducer whose electrical characteristics change according to the strength of a magnetic field based on the magnetism of the magnetoelectric transducer; a power supply means for supplying power to the magnetoelectric transducer with alternating current bias; , a bandpass filter that passes a signal in a frequency band that includes the frequency component of the AC bias, and a signal corresponding to information on the magnetic printed matter by detecting the output signal of the bandpass filter using the frequency component of the AC bias. A reading device for magnetic printed matter, which is equipped with a detection means for deriving the wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12455681U JPS5832549U (en) | 1981-08-22 | 1981-08-22 | Magnetic printed matter reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12455681U JPS5832549U (en) | 1981-08-22 | 1981-08-22 | Magnetic printed matter reading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5832549U true JPS5832549U (en) | 1983-03-03 |
Family
ID=29918422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12455681U Pending JPS5832549U (en) | 1981-08-22 | 1981-08-22 | Magnetic printed matter reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832549U (en) |
-
1981
- 1981-08-22 JP JP12455681U patent/JPS5832549U/en active Pending
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