Block mode, multiple access multi-media/graphics memory

Details Block mode, multiple access multi-media/graphics memory Block mode, multiple access multi-media/graphics memory

1994-12-14

1997-07-08

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345201, G09G 500

Patent

active

056466510

ABSTRACT:
The integration of Video and Graphics Rasterization along with associated functional blocks provides a balanced MultiMedia/Graphics solution to the technology/bandwidth problem of today's higher density memories. Video rasterization, graphic rasterization, and window identifier functionality are contained on the same chip, fast Random Access Memory for each is provided for each, and the wide bus and high speed accesses to within the chip are shared and contained. The problem is therefore solved in a manner beneficial to both rasterization and video components of Multi-Media and Graphics. Window identification and control functions are added into the memory module, thus permitting both video and graphics rasterization functionality to be closely coupled to an independent high speed SRAM within the Memory Module, and thus applying the full internal wide bus bandwidth of the Frame Buffer memory to both real time video Multi-Media and graphics rasterization functions.

REFERENCES:
patent: 5392396 (1995-02-01), MacInnis
patent: 5402147 (1995-03-01), Chen et al.
patent: 5438663 (1995-08-01), Matsumoto et al.
Bradley, et al., "User Interface for Adjusting Video Source Area", IBM Technical Disclosure Bulletin, V36 N09A, dtd Sep. 1993, pp. 449-452.
MacInnis, "Tear-Free Updates of Video and Graphics", IBM Technical Disclosure Bulletin, V36 N09A, dtd Sep. 1993, pp. 341-342.
MacInnis, "Clipping and Overlay of Multiple Sources of Video and Graphics in Display Windows", IBM Technical Disclosure Bulletin, V36 N09A, dtd Sep. 1993, pp. 105-106.
Chen, et al., "Input Locking for an Integrated (Single) Frame Buffer", IBM Technical Disclosure Bulletin, V36 N07, dtd Jul. 1993, pp. 539-540.
Pascoe, "Manual Multiple Source Selection in Computer-Assisted Video Conference", IBM Technical Disclosure Bulletin, V34 N7A, dtd Dec. 1991, pp. 380-381.
Bealkowski, et al. "Prioritizing Video Pixel Selection", IBM Technical Disclosure Bulletin, V32 N11, dtd Apr. 1990, pp. 195-198.

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