Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-06-27
2006-06-27
Le, Vu (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07068718
ABSTRACT:
A rate control method used in encoding images is provided, including setting initial values for rate control and encoding; calculating a target encoding bit value based on the set initial values; performing rate control and encoding of a current bit stream based on the calculated target encoding bit value; measuring the picture quality of the current encoded bit stream, determining whether or not to skip the current encoded bit stream based on the measured picture quality, and generating a current encoded bit stream skip control signal; and controlling skipping of the current encoded bit stream, based on the current bit stream skip control signal provided by a picture quality measuring and skip control signal generating unit. In the method, a bit rate is controlled by considering the picture quality of an encoded bit stream such that a constant bit rate and appropriate picture quality can be maintained simultaneously.
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Kim So-young
Park Jeong-hoon
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