2.
    发明专利
    未知

    公开(公告)号:DE69016697D1

    公开(公告)日:1995-03-23

    申请号:DE69016697

    申请日:1990-04-23

    Applicant: IBM

    Abstract: A video random access memory includes an implementation of a serial access memory register that facilitates the selecting from two alternate frame buffers on a per pixel basis, wherein the frame buffers are each stored in a portion of a row in a single video RAM, data from each of the two frame buffers is available following data transfer to the serial access memory register, a double buffer select signal controls the selection of which half of the serial access memory register will put data on the output bus for each serial clock signal, and the serial clock increments the address pointers in both halves of the serial access memory port simultaneously.

    3.
    发明专利
    未知

    公开(公告)号:DE69016697T2

    公开(公告)日:1995-08-10

    申请号:DE69016697

    申请日:1990-04-23

    Applicant: IBM

    Abstract: A video random access memory includes an implementation of a serial access memory register that facilitates the selecting from two alternate frame buffers on a per pixel basis, wherein the frame buffers are each stored in a portion of a row in a single video RAM, data from each of the two frame buffers is available following data transfer to the serial access memory register, a double buffer select signal controls the selection of which half of the serial access memory register will put data on the output bus for each serial clock signal, and the serial clock increments the address pointers in both halves of the serial access memory port simultaneously.

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