DECODING DEVICE, METHOD THEREFOR AND PROVIDING MEDIUM

Japanese Patent JP3724205

B2

PROBLEM TO BE SOLVED: To make a scale of transcoder small and to suppress the deterioration of images cauged by re-encoding.
SOLUTION: An encoding parameter multiplex device 103 multiplexes a present encoding parameter and an encoding parameter of plural generations included in history information, which is supplied by a history encoder 104 into video data supplied bay a decoder 102 and outputs it as a digital video signal of a base band to an encoding parameter separation device 105. The encoding parameter separation device 105 selects the encoding parameter to be used for encoding by an encoder 106, outputs it as the present encoding parameter to the encoder 106, and outputs the remaining encoding parameter of plural generations to a history encoder 107. The encoder 106 encodes the video data supplied by the encoding parameter separation device 105 by the present encoding parameter and generates a bit stream; at the same time, it multiplexes use data where the encoding parameter of the plural generations supplied by the history encoder 107 to the bit stream is included as history information, and outputs them to a successive step transcoder.

Katsumi Tahara
Takuya Kitamura
Hiroshi Mihara
Yoshihiro Murakami

JP20016098A

December 07, 2005

July 15, 1998

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ソニー株式会社

H04N19/114; H04N7/24; H04N19/00; H04N19/124; H04N19/134; H04N19/15; H04N19/152; H04N19/172; H04N19/177; H04N19/186; H04N19/40; H04N19/46; H04N19/50; H04N19/503; H04N19/60; H04N19/61; H04N19/625; H04N19/70; (IPC1-7): H04N7/24

JP8130712A
JP5207259A
JP6284414A
JP7107461A
JP7288804A
JP7312756A
JP851631A
JP8111870A
JP8130743A
JP1032829A
JP1032830A

Yoshio Inamoto

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