Scalable lossless audio coding/decoding apparatus and method

Details Scalable lossless audio coding/decoding apparatus and method Scalable lossless audio coding/decoding apparatus and method

2003-02-14

2009-11-10

Opsasnick, Michael N (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

Reexamination Certificate

active

07617097

ABSTRACT:
A scalable lossless audio coding/decoding apparatus and method are provided. The scalable lossless audio coding apparatus includes a lossy coding unit which lossy codes an input audio signal and generates a lossy bitstream, a lossy signal regenerating unit which decodes the lossy bitstream, compares a decoded signal with the input audio signal, and regenerates a lossy signal that is lost when lossy coding is implemented, a lossless coding unit which lossless codes the lossy signal and generates the result of lossless coding as a lossless bitstream, and a multiplexing unit which multiplexes the lossy bitstream with the lossless bitstream and generates one output bitstream. The lossy-coded lossy bitstream is mixed with the lossless-coded lossless bitstream, thereby one output bitstream is generated and transmitted, and the lossy audio signal in which only the lossy bitstream is restored from the output bitstream or the lossless audio signal in which the lossy bitstream and the lossless bitstream are restored and mixed with each other can be selectively generated.

REFERENCES:
patent: 5777677 (1998-07-01), Linzer et al.
patent: 6094636 (2000-07-01), Kim
patent: 6349284 (2002-02-01), Park et al.
patent: 6498811 (2002-12-01), Van Der Vleuten
patent: 6529604 (2003-03-01), Park et al.
patent: 6549147 (2003-04-01), Moriya et al.
patent: 6677868 (2004-01-01), Kerofsky et al.
patent: 6993198 (2006-01-01), Kishi
patent: 2002/0018572 (2002-02-01), Rhoads
patent: 918407 (1999-05-01), None
patent: 1 173 028 (2002-01-01), None
patent: 03-108824 (1991-05-01), None
patent: 11-317672 (1999-11-01), None
patent: 2001-044847 (2001-02-01), None
patent: 2002-016925 (2002-01-01), None
patent: 2002504294 (2002-02-01), None
patent: WO 99/53677 (1999-10-01), None
Moriya, Takehiro et al.; A Design of Lossy and Lossless Scalable Audio Coding; Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings 2000 International Conference on; vol. 2, 5-9 Jun. 2000, pp. 11889-11892 vol. 2.
Japanese Patent Office Action issued Jan. 4, 2006.
Official Action issued by the Japanese Patent Office in corresponding JP Application No. 2003-052519, mailed Feb. 6, 2007.
Office Action issued by German Patent Office on Apr. 21, 2008.
Noll et al., “Digital Audio: From Lossless to Transparent Coding”, IEEE Signal Processing Workshop, 1999.
Moriya et al., “A Design of Lossy and Lossless Scalable Audio Coding”, Acoustics, Speech and Signal Processing, 2000 IEEE International Conference, vol. 2, Jun. 5-9, 2000, pp. 889-892.
Grill, “A Two-or Three-Stage Bit Rate Scalable Audio Coding System”, AES, Preprint 4132, 99th Convention, Oct. 6-9, 1995, New York.

Affiliated with

Also associated with

Rating

Scalable lossless audio coding/decoding apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scalable lossless audio coding/decoding apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scalable lossless audio coding/decoding apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4059871