Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1997-10-10
1999-02-09
An, Meng-Ai T.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
395840, 395842, 345502, 345522, 345526, G06F 1312
Patent
active
058706224
ABSTRACT:
A computer system and method for transferring multimedia commands and data to a dedicated multimedia engine and/or multimedia memory, wherein the multimedia engine provides increased performance for real-time applications over current computer architectures. The system includes a dedicated multimedia engine coupled directly to the main memory which performs real-time operations, including audio and video function, as well as others. The multimedia engine includes multimedia memory and one or more DSP engines. The CPU writes video and/or audio commands and data to the main memory. The CPU also preferably writes data structure information to the DMA engine which includes the main memory address where the commands and data reside. The DMA engine uses this information to retrieve the commands and data from main memory into the multimedia memory. The DMA engine preferably operates concurrently with the multimedia engine, thus allowing for improved performance. In an alternate embodiment, the CPU writes the main memory address space information to the multimedia engine, and the multimedia engine retrieves the commands and data from main memory into the multimedia memory prior to performing operations using the data.
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Barnes Brian
Gulick Dale
Hewitt Larry
Lambrecht Andy
Webb Mike
Advanced Micro Devices , Inc.
An Meng-Ai T.
Follansbee John
Hood Jeffrey C.
Iselin Louis H.
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