Television – Bandwidth reduction system – Data rate reduction
Patent
1996-07-16
1999-02-16
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348416, 348415, 348699, 3488451, H04N 718
Patent
active
058725970
ABSTRACT:
A moving picture signal decoding system includes a processing order determination element having a logic calculation device for decoding additional data, determining as to whether an orthogonal transformation is performed with respect to a divided signal of each block or a residual signal after motion compensation, and changing a processing order in accordance with a determined content; a decoding element for decoding transformation coefficient data; an inverse scanning element for inversely scanning the transformation coefficient decoded by the decoding element; an inverse quantization element for inversely quantizing the transformation coefficient after inversely scanning; an inverse orthogonal transformation element for inversely and orthogonally transforming the inverse quantized signal; and a motion compensation element for compensating a motion on the basis of the additional data decoded by the processing order determination element; wherein the processing order determination element decompresses the additional data while the decoding element decodes the transformation coefficient, thereby miniaturizing a circuit scale. Therefore, it is possible to provide a moving picture decoding system capable of operating in higher speed. Also, it is possible to provide a flexible decoding system corresponding to various coding systems.
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patent: 5253056 (1993-10-01), Puri et al.
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patent: 5376968 (1994-12-01), Wu et al.
patent: 5557332 (1996-09-01), Koyanagi et al.
Odaka Toshinori
Yamakage Tomoo
Chin Tommy P.
Kabushiki Kaisha Toshiba
Rao Anand S.
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