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    Variable speed line adapter
    1.
    发明授权
    Variable speed line adapter 失效
    可变速度线适配器

    公开(公告)号：US3569943A

    公开(公告)日：1971-03-09

    申请号：US3569943D

    申请日：1969-04-02

    Applicant: IBM

    Inventor： MACKIE DAVID ,  MALLAR EUGENE E JR ,  STEEN ROBERT F

    IPC: H04L25/38 ,  G06F13/00 ,  G06F13/38 ,  H04L13/06 ,  H04L29/08 ,  G05B11/00 ,  G06C9/00

    CPC classification number: G06F13/385 ,  G06Q20/203

    Abstract: A variable speed line adapter for receiving start-stop data transmission is normally set for reception at one speed and will examine the starting characters of received data at that speed. If the first received character is not a complete and valid starting character for the initial receiver speed, a shift is made to another receiver speed and the next data character examined. By a proper selection of starting characters, the adapter may be switched from one speed range to another until the line adapter is set to receive at the speed of the transmitted signal.

    4.
    发明专利
    未知

    公开(公告)号：DE1437708A1

    公开(公告)日：1968-10-17

    申请号：DE1437708

    申请日：1965-06-28

    Applicant: IBM

    Inventor： ROBERT CARTHEW JOHN ,  LOIZIDES EDWARD ,  MACKIE DAVID ,  ALBERT MITTA LOUIS ,  THOMAS O'CONNOR JUN LEO ,  HERBERT RICHARD WILLIAM

    IPC: G06F13/12 ,  G06F13/22 ,  H04L25/02

    Abstract: 1,042,576. Data transmission. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 16, 1965 [June 30, 1964], No. 25364/65. Heading H4P. [Also in Division G4] The description is the same as that of Specification 1,042,574. The claims relate to a system for the transfer of data between a data processor and a plurality of outstations, comprising an interface for each output line, the interfaces being scanned sequentially, and recirculating stores, synchronized with the scanning and containing a control word for each line, each control word having a terminal control identifying field for selecting the one of a number of terminal controls which corresponds to the interface associated with the control word.

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