RASTER DISPLAY FOR GRAPHICAL IMAGES

    公开(公告)号:AU5348879A

    公开(公告)日:1980-06-26

    申请号:AU5348879

    申请日:1979-12-05

    Applicant: IBM

    Abstract: A raster display apparatus capable of displaying graphic pictures includes a processor 13 for loading character codes (pointers) in a character buffer 12. The pointers address a character/cell generator 22 to derive the bit patterns necessary to refresh the display 1 under control of refresh logic 19. As the picture becomes increasingly complex, requiring more and more different character cells, the character/cell generator 22 fills. Space is created by combining two or more adjacent cells into a single low-resolution-displayed cell: an op code associated with each character code (pointer) determines whether the cell is to be displayed at full or reduced resolution and causes refresh logic to clock bit patterns associated with low resolution cells at a slower rate. Optionally, the processor 13 changes low resolution parts of the picture to high resolution when an operator interacts with the low resolution part using a light pen 30.

    Graphical user interface
    12.
    发明专利

    公开(公告)号:GB2301757A

    公开(公告)日:1996-12-11

    申请号:GB9511073

    申请日:1995-06-01

    Applicant: IBM

    Abstract: In a data processing system, a plurality of user interface objects (415-465) related into groups (415-430, 435-445, 455-465) are displayed on a desktop (410); when the user selects one object (425), such selected object is highlighted on the desktop (410). The objects (415,420,430) related to the selected object (425) are then highlighted using a different intensity. The colour of the titlebar of each window in addition may be changed associating a different colour to each of such groups of related objects. A pushbutton is also provided on such objects for bringing the related objects to the foreground and moving them near to the selected object.

    RASTER CRT FLICKER REDUCING APPARATUS

    公开(公告)号:DE3068972D1

    公开(公告)日:1984-09-20

    申请号:DE3068972

    申请日:1980-11-28

    Applicant: IBM

    Abstract: A raster-scanned CRT device includes auxiliary vertical deflection means operable during each scan line of the raster to deflect the electron beam selectively between adjacent pairs of uniformly spaced image lines on the screen. Control logic operates in response to video information representing an image to be displayed to write image pels on the screen during two successive field scans of the raster. The auxilliary deflection means is controlled so that the entire image is formed on the image lines, and the field scan in which the pels are allocated for display is selected on-the-fly for successive portions of the input video in such a way that pel imbalance between the two fields constituting the final image is minimized.

    RASTER DISPLAY FOR GRAPHICAL IMAGES

    公开(公告)号:AU530042B2

    公开(公告)日:1983-06-30

    申请号:AU5348879

    申请日:1979-12-05

    Applicant: IBM

    Abstract: A raster display apparatus capable of displaying graphic pictures includes a processor 13 for loading character codes (pointers) in a character buffer 12. The pointers address a character/cell generator 22 to derive the bit patterns necessary to refresh the display 1 under control of refresh logic 19. As the picture becomes increasingly complex, requiring more and more different character cells, the character/cell generator 22 fills. Space is created by combining two or more adjacent cells into a single low-resolution-displayed cell: an op code associated with each character code (pointer) determines whether the cell is to be displayed at full or reduced resolution and causes refresh logic to clock bit patterns associated with low resolution cells at a slower rate. Optionally, the processor 13 changes low resolution parts of the picture to high resolution when an operator interacts with the low resolution part using a light pen 30.

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