Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-07-26
2011-07-26
Diep, Nhon T (Department: 2486)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07986730
ABSTRACT:
According to the present invention, methods and apparatus for updating reduction ratios are provided. An input bit sequence can be altered to provide modified output bit sequence. The input bit sequence may represent information in a portion of data such as a video sequence, a picture, or an audio stream. In one example, the bit sequence is an MPEG-2 video sequence. The input bit sequence is altered using a reduction ratio to provide a modified output bit sequence. The reduction ratio can be continually updated using rate control information to achieve a target reduction ratio for the input bit sequence.
REFERENCES:
patent: 5005076 (1991-04-01), Stroppina et al.
patent: 5473380 (1995-12-01), Tahara
patent: 5473599 (1995-12-01), Cole et al.
patent: 5715009 (1998-02-01), Tahara et al.
patent: 5907374 (1999-05-01), Liu
patent: 6002801 (1999-12-01), Strongin et al.
patent: 6141358 (2000-10-01), Hurst, Jr. et al.
patent: 6181711 (2001-01-01), Zhang et al.
patent: 6236749 (2001-05-01), Satonaka et al.
patent: 6263021 (2001-07-01), Sethuraman et al.
patent: 6335990 (2002-01-01), Chen et al.
patent: 6359999 (2002-03-01), Moriwaki et al.
patent: 6412112 (2002-06-01), Barrett et al.
patent: 6442207 (2002-08-01), Nishikawa et al.
patent: 6516096 (2003-02-01), Yokose et al.
patent: 6535556 (2003-03-01), Kato et al.
patent: 6553148 (2003-04-01), Zeng et al.
patent: 6556624 (2003-04-01), Orchard et al.
patent: 6621866 (2003-09-01), Florencio et al.
patent: 6661923 (2003-12-01), Koike et al.
patent: 6665346 (2003-12-01), Lee et al.
patent: 6671322 (2003-12-01), Vetro et al.
patent: 6687296 (2004-02-01), Sato et al.
patent: 6763067 (2004-07-01), Hurst
patent: 6763070 (2004-07-01), Lee
patent: 6847656 (2005-01-01), Wu et al.
patent: 7321622 (2008-01-01), Etoh et al.
G. Keesman, R. Hellinghuizen, F. Hoeksema, G. Heideman, “Transcoding of MPEG bitstreams”, Signal Processing: Image Communication, vol. 8 (1996), pp. 481-500.
Brian C. Smith, “A Survey of Compressed Domain Processing Techniques,” downloaded from www.uky.edu, Mar. 20, 2001, 10 pages.
Anthony Vero, “MPEG-4 Rate Control for Multiple Video Objects,”IEEE Transactions on Circuits and Systems for Video Technology, vol. 9, No. 1, Feb. 1999, pp. 186-199.
Wu et al., “Methods and Apparatus for Transform Coefficient Filtering,” U.S. Appl. No. 09/867,966, filed May 29, 2001, 40 pages.
U.S. Office Action mailed Dec. 21, 2004, from U.S. Appl. No. 09/867,966.
U.S. Office Action mailed Aug. 9, 2005, from related U.S. Appl. No. 09/867,966.
U.S. Appl. No. 09/608,128, filed Jun. 30, 2000.
U.S. Appl. No. 09/766,020, filed Jan. 18, 2001.
Shen Ke
Tse Yi Tong
Cisco Technology Inc.
Diep Nhon T
Weaver Austin Villeneuve & Sampson LLP
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