2.
    发明专利
    未知

    公开(公告)号:BR9304391A

    公开(公告)日:1994-05-24

    申请号:BR9304391

    申请日:1993-10-29

    Applicant: IBM

    Abstract: The present invention provides an integrated display system for multi-media workstations wherein graphics image and video data are merged in a single frame buffer. The integrated display system employs 3-port VRAMs with a first serial access port for display data output, and a random access port for graphics data, a second serial access for video data input. The display system includes a single frame buffer memory system for a multi-media workstation which operates compatibly with display systems and logic designed for dual frame buffer systems and it uses the 3-port VRAM in combination with a means incorporating improved input locking, video update or refresh, and encoded video data input stream.

    INTEGRATED SINGLE FRAME BUFFER MEMORY FOR STORING GRAPHICS AND VIDEO DATA

    公开(公告)号:CA2104073A1

    公开(公告)日:1994-05-01

    申请号:CA2104073

    申请日:1993-08-13

    Applicant: IBM

    Abstract: An Integrated Single Frame Buffer Memory For Storing Graphics and Video Data The present invention provides an integrated display system for multi.-media workstations wherein graphics image and video data are merged in a single frame buffer. The integrated display system employs 3-port VRAMs with a first serial access port for display data output, and a random access port for graphics data, a second serial access for video data input. The display system includes a single frame buffer memory system for a multi-media workstation which operates compatibly with display systems and logic designed for dual frame buffer systems and it uses the 3-port VRAM in combination with a means incorporating improved input locking, video update or refresh, and encoded video data input stream.

    MULTI-MEDIA WINDOW MANAGER
    5.
    发明专利

    公开(公告)号:CA2089785A1

    公开(公告)日:1993-10-23

    申请号:CA2089785

    申请日:1993-02-18

    Applicant: IBM

    Abstract: YO9-91-126 An apparatus and method for displaying non-obscured pixels in a multiple-media motion video environment (dynamic image management) possessing overlaid windows. In an encoding process, only boundary values and identification values corresponding to each window on a screen are saved in memory of a hardware device. In a decoding process, the hardware device utilizes these initial boundary values saved in memory in such a way that when incoming video data enters the hardware device, the hardware device need only compare the incoming video data's identification with the identification saved in memory. The hardware device includes: compare logic devices, counters, minimal memory devices, a control logic block, and a driver.

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