Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2008-07-22
2008-07-22
An, Shawn (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240250, C375S240260, C375S240160, C375S240150, C375S240140, C382S233000, C382S235000, C382S238000, C382S236000
Reexamination Certificate
active
10449537
ABSTRACT:
A variable-length decoding (VLD) unit performs a variable-length decoding on an MPEG video stream. An inverse quantization (IQ) unit computes a discrete-cosine-transform (DCT) coefficient by performing an inverse quantization on results of decoding by the VLD unit. An inverse-discrete-cosine-transform (IDCT) unit carries out an IDCT for the DCT coefficients computed by the IQ unit so as to convert frequency components into the original signals. A motion-compensated-prediction (MC) unit performs a best-effort reproduction processing on received frames, during the time until the arrival of a frame serving as a reference for decoding, and returns to a normal decoding processing after the reference frame has been received.
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Okada Shigeyuki
Yamauchi Hideki
An Shawn
Sanyo Electric Co,. Ltd.
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