Data comparison methods and apparatus suitable for image...

Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal

Reexamination Certificate

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C382S268000

Reexamination Certificate

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07864857

ABSTRACT:
A method and apparatus for calculating the quantized difference between a pixel in a current frame and a pixel in a reference frame is disclosed. The apparatus of the present invention generates a “1 of n” significant difference bit output which may easily be logically OR'd with the difference values from other comparisons to determine the maximum difference over an area of pixels.

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