Code quantity control apparatus, code quantity control...

Details Code quantity control apparatus, code quantity control... Code quantity control apparatus, code quantity control...

2005-06-23

2009-06-30

Czekaj, David (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260

Reexamination Certificate

active

07555041

ABSTRACT:
Code quantity control based on a virtual buffer is executed by using information extracted from picture compressed information conforming to a predetermined system. Thus, a reference quantization scale can be held at a fixed value throughout a frame. As a result, it is possible to generate picture compressed information having a smaller code quantity.

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“A Fast Computational Algorithm for the Discrete Cosine Transform,” Chen, et al., IEEE Trans. Commun., vol. 2.5, No. 9, pp. 1004 to 1009, 1977.
“Fast Algorithms for the Discrete W Transform and for the Discrete Fourier Transform,” Wang, IEEE Tr. ASSP-32, No. 4, pp. 803-816, Aug. 1984.

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