Passive magnetic transfer of discrete magnetic information
    3.
    发明授权
    Passive magnetic transfer of discrete magnetic information 失效
    离散磁信息的被动磁传输

    公开(公告)号:US3665513A

    公开(公告)日:1972-05-23

    申请号:US3665513D

    申请日:1969-12-29

    Applicant: IBM

    CPC classification number: G07F7/08 G06K1/125 G07F7/0833

    Abstract: A transaction record is prepared in both human and machine readable form by providing a card having both embossed data and magnetic data thereon and simultaneously imprinting the embossed data on a record card while transferring the magnetic data to a magnetizable portion of the record card. The magnetic data on the card is comprised of a plurality of discrete magnetic bits and is transferred to the magnetizable portion of the record card by subjecting the magnetic data and the magnetizable portion to a saturating prebiased D.C. field followed by a weaker D.C. transfer field.

    Abstract translation: 通过在其上提供具有压花数据和磁数据的卡并且同时将压印数据压印在记录卡上同时将磁数据传送到记录卡的可磁化部分的同时以人机和机器可读形式准备交易记录。 卡上的磁数据由多个离散磁头组成,并通过将磁数据和可磁化部分经受饱和的预先偏置的直流电场,随后是较弱的直流转换磁场传送到记录卡的可磁化部分。

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