Appeal No. 2006-0889
Application No. 10/174,918
needed for the video and/or audio decompression and/or compression device to operate in
real time.
In one preferred embodiment of the invention the two devices share an arbiter. The
arbiter and Direct Memory Access (DMA) engines of the video and/or audio decompression
and/or compression device and of the first device are configured to arbitrate between the two
devices when one of them is requesting access to the memory. This allows both the video
and/or audio decompression and/or compression device and the first device to share the
memory. Appellants’ specification at page 7, lines 15-28.
Claim 1 is representative of the claimed invention and is reproduced as follows:
1. An electronic system comprising:
a main memory having stored therein data corresponding to images to be decoded and
also decoded data corresponding to images that have previously been decoded;
a bus coupled to the memory; and
a decoder coupled to the bus for receiving compressed images and for outputting a
data for displaying the decoded images on a display device, the decoder receiving data from
the main memory corresponding to at least one previously decoded image and to a current
image to be decoded and outputting decoded data corresponding to a current image to be
displayed, the current image being stored in the main memory.
a microprocessor system coupled to the main memory, the microprocessor system
storing non-image data in and retrieving data from the main memory; and
an arbiter circuit coupled to both the microprocessor system and the decoder for
controlling the access to said main memory by the decoder and the microprocessor.
References
The references relied on by the Examiner are as follows:
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