Encoding device and encoding method

Details Encoding device and encoding method Encoding device and encoding method

2008-02-12

2011-12-06

Cho, Hong (Department: 2467)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260

Reexamination Certificate

active

08073050

ABSTRACT:
When creating SBR data in a the low-resolution mode, an encoding device divides a high-frequency component of input audio data being encoded by SBR method into a high-frequency band and a low-frequency band, and calculates an average high-frequency power value that indicates the average value of the power in the high-frequency band of the audio data, as well as an average low-frequency power value that indicates the average value of the power in the low-frequency band of the audio data. The encoding device then compares the average high-frequency power value and the average low-frequency power value, selecting the smaller of the two. The encoding device then corrects the power of the high-frequency component of the signal being encoded by the SBR method so that it equals the selected average power value.

REFERENCES:
patent: 5684922 (1997-11-01), Miyakawa et al.
patent: 6097759 (2000-08-01), Murakami et al.
patent: 7246065 (2007-07-01), Tanaka et al.
patent: 7492701 (2009-02-01), Song et al.
patent: 2003/0142746 (2003-07-01), Tanaka et al.
patent: 2004/0019492 (2004-01-01), Tucker et al.
patent: 2005/0014933 (2005-01-01), Peters et al.
patent: 2005/0267744 (2005-12-01), Nettre et al.
patent: 2006/0074642 (2006-04-01), You
patent: 2006/0256971 (2006-11-01), Chong et al.
patent: 2001525079 (2001-12-01), None
patent: 2003529787 (2003-10-01), None
patent: 2005-520219 (2005-07-01), None
patent: 2005-338637 (2005-12-01), None
patent: 9852187 (1998-11-01), None
patent: 0126095 (2001-04-01), None
patent: 2004027368 (2004-04-01), None
patent: 2005036527 (2005-04-01), None
patent: WO 2006/075663 (2006-07-01), None
Nilsson M. et al., “Avoiding over-estimation in bandwidth extension of telephony speech” 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. (ICASSP). Salt Lake City, UT; May 7-11, 2001; vol. 2, pp. 869-872; XP010803743.
Extended European Search Report dated Jul. 4, 2008 issued in corresponding European Application No. 08002888.9-2225.
Japanese Notice of Rejection dated Jul. 26, 2011 for application No. 2007-060933.

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