Card reader format control system
    4.
    发明授权
    Card reader format control system 失效
    卡读卡器格式控制系统

    公开(公告)号:US3586833A

    公开(公告)日:1971-06-22

    申请号:US3586833D

    申请日:1969-09-12

    Applicant: BURROUGHS CORP

    Inventor: SCHAFER ROBERT H

    CPC classification number: G06K7/016

    Abstract: A format control system for card readers having a multiple stage shift register for storing formatting information. Each stage of the shift register corresponds to a column of information on a data punched card. A special combination of information markings in the first column of a format card permits a new format information to be read by the card reader and stored in the shift register. As punched cards are being read, a strobe member synchronizes the corresponding stage of the format shift register with the card column being read to control the data flow from the card reader to a central processor.

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