Method and device for controlling quantization scales of a...

Details Method and device for controlling quantization scales of a... Method and device for controlling quantization scales of a...

2007-05-15

2007-05-15

Huber, Paul W. (Department: 2627)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

10904420

ABSTRACT:
A method for controlling quantization scales when encoding video signals, includes: obtaining a number of changes in the quantization scales of within a time period; generating a new quantization scale; and comparing the number of changes with a predetermined value to determine whether to replace a prior quantization scale with the new quantization scale; wherein when the number of changes exceeds the predetermined value, retain the prior quantization scale instead of replacing it with the new quantization scale.

REFERENCES:
patent: 6560282 (2003-05-01), Tahara et al.
patent: 7126993 (2006-10-01), Kitamura et al.

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