JPH02123704U

JPH02123704U -

Info

Publication number: JPH02123704U
Application number: JP3018389U
Authority: JP
Priority date: 1989-03-16
Filing date: 1989-03-16
Publication date: 1990-10-11

Description

[Brief explanation of the drawing]

第１図はこの考案に係る磁気カード記録装置の
基本構成を示すブロツク図、第２図は制御部の機
能ブロツク図、第３図はこの考案装置をマイクロ
コンピユータを用いて構成した場合の基本構成図
、第４図及び第５図は飽和消去後の情報記録時に
分離損失が発生した場合の磁化状態を説明するＢ
−Ｈ曲線図であり、第４図は正極性消去の場合、
第５図は負極性消去の場合をそれぞれ示す。第６
図は飽和消去とその後の情報記録における記録電
流、磁化状態、読出電圧の発生状態及びそのレベ
ルを示すタイムチヤートである。第７図は従来の
オーバーライト方式による記録の欠点を説明する
Ｂ−Ｈ曲線図、第８図は最初の情報記録時と新情
報のオーバーライト時のそれぞれの情報内容、記
録電流、磁化状態、読出電圧の発生状態及びその
レベルを示すタイムチヤートである。３……カード搬送部、５……消去回路、６……
記録回路、７……消去ヘツド、８……記録ヘツド
。 Figure 1 is a block diagram showing the basic configuration of the magnetic card recording device according to this invention, Figure 2 is a functional block diagram of the control section, and Figure 3 is the basic configuration of this invented device when configured using a microcomputer. Figures 4 and 5 illustrate the magnetization state when separation loss occurs during information recording after saturation erasing.
-H curve diagram, and Fig. 4 shows the case of positive polarity cancellation;
FIG. 5 shows the case of negative polarity erasing. 6th
The figure is a time chart showing the generation state and level of the recording current, magnetization state, and read voltage during saturation erasing and subsequent information recording. Fig. 7 is a B-H curve diagram explaining the drawbacks of recording using the conventional overwrite method, and Fig. 8 shows the information content, recording current, magnetization state, and information at the time of initial information recording and overwriting of new information, respectively. 3 is a time chart showing the generation state of read voltage and its level. 3...Card transport section, 5...Erasing circuit, 6...
Recording circuit, 7... erasing head, 8... recording head.

Claims

[Claims for Utility Model Registration] (a) An erasing head and a recording head are provided in the card transport path in this order separated from each other in the transport direction, and (b) The erasing head is supplied with a DC erasing current for saturation erasing. (c) The recording head is connected to a recording circuit that supplies a signal current for saturation recording.