Method and apparatus for performing a pixel averaging...

Details Method and apparatus for performing a pixel averaging... Method and apparatus for performing a pixel averaging...

2006-04-25

2006-04-25

Philippe, Gims (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240210, C345S643000

Reexamination Certificate

active

07035331

ABSTRACT:
In an embodiment, a functional unit including a compressor section and a 36-bit SIMD adder is used to perform a STMD four-pixel averaging instruction. The functional unit generates four four-pixel averages. Four pixel values and a rounding value are compressed into a sum and a carry vector. The two least significant bits of the sum vector and the LSB of the carry vector are dropped before being input to the 36-bit SIMD adder. The two resultant 8-bit vectors are added by the 36-bit adder to directly generate the average pixel value result.

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