Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-08-15
2009-02-10
Senfi, Behrooz (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240120
Reexamination Certificate
active
07489729
ABSTRACT:
A method and apparatus are provided for implementing an enhanced reduced memory mode (RMM) of decoding HDTV MPEG-2 video stream. In one instance, the RMM mode is adaptively enabled with up/down conversion by using the picture-type information. In another instance, the RMM mode is provided by performing anchor-frame compression/decompression by using adaptive DPCM technique with picture-type information. The quantization (PCM) tables are generated using the Lloyd algorithm. Further, the predictor for each pixel is determined by a use of the Graham rule.
REFERENCES:
patent: 5262854 (1993-11-01), Ng
patent: 5307177 (1994-04-01), Shibata et al.
patent: 5396567 (1995-03-01), Jass
patent: 5614952 (1997-03-01), Boyce et al.
patent: 5635985 (1997-06-01), Boyce et al.
patent: 5844608 (1998-12-01), Yu et al.
patent: 6175595 (2001-01-01), Keesman
patent: 6333952 (2001-12-01), Lim et al.
patent: 6393152 (2002-05-01), Takahashi et al.
patent: 6417889 (2002-07-01), Numata
patent: 6563876 (2003-05-01), Boyce et al.
patent: 6618443 (2003-09-01), Kim et al.
patent: 6983017 (2006-01-01), Chen et al.
patent: 2001/0026677 (2001-10-01), Chen et al.
patent: 2001/0055339 (2001-12-01), Choi
patent: 2003/0112869 (2003-06-01), Chen et al.
patent: 1 026 884 (2000-08-01), None
patent: 11298892 (1999-10-01), None
patent: 249229 (2000-03-01), None
Zhong, Zhun, et al., “Scaling in MPEG-2 decoding loop with mixed processing” International Conference on Consumer Electronics, 2001 Digest of Technical Papers, ICCE, Los Angeles, CA Jun. 19-21, 2001, New York, NY, IEEE, US, Jun. 19, 2001 pp. 76-77, XPO010552075, ISBN: 0-7803-6622-0.
EP Search Report for European Application No. 02090296.1, dated Dec. 23, 2004.
Vetro, Anthony, et al., “Minimum Drift Architectures for 3-Layer Scalable DTV Decoding,” IEEE Transactions on Consumer Electronics, pp. 527-536, vol. 44, No. 3, Aug. 1998.
Mokry, Robert, et al., “Minimal Error Drift in Frequency Scalability for Motion-Compensated DCT Coding,” IEEE Transactions on Circuits and Systems for Video Technology, pp. 392-406, vol. 4, No. 4, Aug. 1994.
Yu, Haoping, et al., “Block-Based Image Processor for Memory Efficient MPEG Video Decoding,” 1999 IEEE International Conference on Consumer Electronics, pp. 114-115, Los Angeles, 1999.
Bao, Jay, et al., “HDTV Down-Conversion Decoder,” IEEE Transactions on Consumer Electronics, pp. 402-410, vol. 42, No. 3, Aug. 1996.
Sun, Huifang, et al., “A New Approach for Memory Efficient ATV Decoding,” 1997 IEEE International Conference on Consumer Electronics, pp. 174-175, Los Angeles, 1997.
Lee, Dong-Ho, et al., “HDTV Video Decoder Which can be Implemented With Low Complexity,” IEEE International Conference on Consumer Electronics, pp. 6-7, 1994.
Sun, Huifang, “Hierarchical Decoder for MPEG Compressed Video Data,” IEEE Transactions on Consumer Electronics, pp. 559-564, vol. 39, No. 3, Aug. 1993.
Gersho, Allen, et al., “The Lloyd Quantizer Design Algorithm,” Vector Quantization and Signal Compression (The Kluwer International Series in Engineering and Computer Science), Chapter 6: Scaler Quantization II, pp. 188-190, Kluwer Academic Publishers, Boston/Dordrecht/London, Jan. 1992.
Bhatia Sandeep
Chen Sherman (Xuemin)
Demas Jason
Broadcom Corporation
McAndrews Held & Malloy Ltd.
Senfi Behrooz
LandOfFree
Method and apparatus for implementing reduced memory mode... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for implementing reduced memory mode..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for implementing reduced memory mode... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4069622