Graphics system with shadow ram update to the color map
Synchronization techniques for multimedia data streams
Format adaptive sync signal generator
Multi-source video synchronization
Video display apparatus for displaying a plurality of video signals having different scanning frequencies and a multi-screen display system using the video display apparatus Patent #: 5557342
ApplicationNo. 129293 filed on 08/05/1998
US Classes:365/230.01, ADDRESSING348/555, For receiving more than one format at will (e.g., NTSC/PAL)365/230.03Plural blocks or banks
ExaminersPrimary: Fears, Terrell W.
Attorney, Agent or Firm
Foreign Patent References
International ClassG09G 001/16
AbstractA device for storing pixel information for displaying a graphics image on a display includes a frame buffer and a processor. The information includes an intensity value and a value associated with each of a plurality of additional planes for each pixel. The frame buffer memory has a series of consecutive addresses for storing information to be output to the display. The frame buffer may be subdivided into a plurality of blocks, where each block corresponds to a region of the display having a plurality of contiguous pixels. The processor places the pixel information within the frame buffer memory so that in a given block there are placed at a first collection of consecutive addresses the intensity values for each of the pixels in the block.