DATA EMBEDDING DEVICE AND METHOD, DATA EXTRACTION DEVICE AND METHOD, AND PROGRAM

Japanese Patent JP2014038179

A

To embed other information in data describing original information in order to prevent deterioration of quality of the original information from being recognized.

A codebook 21 preliminarily stores a plurality of predictive parameters. From this codebook 21, a candidate extraction section 22 extracts a plurality of candidates for predictive parameters in which a prediction error in prediction coding for a channel signal in a plurality of channel signals on the basis of the other two channel signals is within a prescribed range. A data embedding section 23 embeds data to be embedded in a predictive parameter resulting from the prediction coding, by selecting the predictive parameter out of the extracted parameters according to a prescribed data embedding rule.

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KAMANO AKIRA
KISHI YOHEI
TAKEUCHI SHUNSUKE
SUZUKI MASANAO

JP2012179966A

February 27, 2014

August 14, 2012

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FUJITSU LTD

G10L19/018

JP2012073351A	2012-04-12
JP2012073351A	2012-04-12

JPN6016020336; 岸　　洋平: '予測誤差分布に基づく高音質かつ高速なＭＰＥＧサラウンド符号化の検討' 日本音響学会　　２０１２年　　春季研究発表会講演論文集 , 20120315
JPN6016020336; 岸　　洋平: '予測誤差分布に基づく高音質かつ高速なＭＰＥＧサラウンド符号化の検討' 日本音響学会　　２０１２年　　春季研究発表会講演論文集 , 20120315, ｐｐ．８１５-８１８

Yoshiyuki Osuga
virtue Tamio Ei

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