Coefficient scaling operational units

Details Coefficient scaling operational units Coefficient scaling operational units

2011-01-11

2011-01-11

Bali, Vikkram (Department: 2624)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260, C382S251000, C382S253000

Reexamination Certificate

active

07869504

ABSTRACT:
Techniques for providing a coefficient scaling operational unit to perform the coefficient scaling computation for various image compression schemes are disclosed. To minimize multiple units, each for one image encoding/decoding scheme (e.g., MPEG4 and WMV9), a single coefficient scaling operational unit is designed to accommodate various standards. In one embodiment, the coefficient scaling operational unit comprises an arithmetic logic unit. The arithmetic logic unit operates in accordance with a formula involving multiplication and division. Parameters such as coefficients and quantization parameters are provided to perform the coefficient scaling operation.

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