Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation
Patent
1997-09-25
2000-12-12
Pan, Daniel H.
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus access regulation
710 26, 712 21, 712 23, G06F 1204, G06F 1340
Patent
active
06161159&
ABSTRACT:
An alternate route to improved multimedia performance without replacing the central processor unit (CPU) is presented, through the utilization of general-purpose components available in a computer. The method relies on the use of integrated circuit memory boards having a data port for directly inputting encoded image signals from an I/O device into the memory. An on-board decoder provided on the IC memory is used to decode the variable-length encoded input signals. This approach enalbes to reduce the computational load on the CPU so that the usual bottleneck which is the slow process of data exchange between the CPU and the memory boards is eliminated. The CPU directly accesses the processed image data in the memory and displays the final image on the monitor. This route to increasing the image processing speed of a computer has considerable merits because it is low cost and is readily applicable to mass-produced IC memories with only a few additional fabrication steps.
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patent: 5283886 (1994-02-01), Nishii et al.
patent: 5319395 (1994-06-01), Larky et al.
patent: 5329318 (1994-07-01), Keith
patent: 5541595 (1996-07-01), Meyer
NEC Corporation
Pan Daniel H.
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