Appeal No. 1997-3842
Application No. 08/385,074
shares at least one memory cell with each readable block.
Claim 1 is illustrative of the claimed invention, and it reads
as follows:
1. An image predictor for providing at least one target
pixel in a preceding image, the preceding image being
represented by a plurality of pixels, the at least one target
pixel corresponding to a pixel in a current image shifted by a
motion vector, the image predictor comprising:
a search memory comprising a plurality of memory cells
each independently addressable in a read mode and a write
mode;
a plurality of read decoders that arrange the memory
cells into a corresponding plurality of simultaneously and
independently readable blocks;
a write control circuit that writes data to the search
memory that represents the plurality of pixels of the
preceding image;
a plurality of write decoders that arrange the memory
cells into a plurality of independently writable blocks, each
of the plurality of independently writable blocks sharing at
least one memory cell with each of the plurality of
simultaneously and independently readable blocks, the
plurality of write decoders arranging the memory cells so that
when the data representing the plurality of pixels of the
preceding image is written to the search memory, each one of
said plurality of pixels is stored within a separate readable
block from its adjacent pixels; and
a read control circuit that reads data from at least one
memory cell, selected in response to the motion vector, that
represents the at least one target pixel.
2
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