Interactive video distribution systems – Video distribution system with upstream communication
Reexamination Certificate
2006-08-22
2006-08-22
An, Shawn S. (Department: 2621)
Interactive video distribution systems
Video distribution system with upstream communication
C725S036000, C725S032000, C382S235000, C375S240260, C375S240010
Reexamination Certificate
active
07096488
ABSTRACT:
The invention provides systems and methods for providing compressed video data from multiple bit streams. The systems and methods apply a two-stage strategy. In the first stage, a conditioning step is performed on a bit stream comprising compressed video data which outputs a conditioned bit stream that is able to receive digital insertions without subsequent decompression of the compressed video data or removal from network packets. The conditioning includes recoding an incoming bit stream such that compressed video data in the bit stream immediately before and after a splice point does not have temporal reliance across the splice point. In the second stage, e.g., at a downstream network device, splicing of compressed video data from a second bit stream into the conditioned bit stream is performed. The splicing takes advantage of the changes made to the conditioned bit stream and may occur at the network packet level.
REFERENCES:
patent: 5907374 (1999-05-01), Liu
patent: 5912709 (1999-06-01), Takahashi
patent: 5982436 (1999-11-01), Balakrishnan et al.
patent: 6038000 (2000-03-01), Hurst, Jr.
patent: 6101195 (2000-08-01), Lyons et al.
patent: 6104441 (2000-08-01), Wee et al.
patent: 6487721 (2002-11-01), Safadi
patent: 6611624 (2003-08-01), Zhang et al.
International Organisation for Standardisation Organisation Internationale De Normalisation, “Generic Coding of Moving Pictures and Associated Audio: Systems”, ISO/IEC JTC1/SC29/WG11/N0801, Nov. 13, 1994.
Society of Cable Telecommunications Engineers, Inc. Engineering Committee Digital Video Subcommittee, “Digital Program Insertion Splicing API”, Document DVS, Nov. 15, 2000, 28 pages.
Carlos V. Girod, Jr. “Standards and Recommended Practices”, SMPTE Journal, Oct. 1998, pp. 915-925.
M. Knee and N. Wells, “Seamless Concatenation—A21st Century Dream”, Paper Presented at the International Television Symposium (ITVS) Montreux, Jun. 16, 1997, 11 pages.
Motion Picture and Television Engineers, “SMPTE Standard for Television—Splice Points for MPEG-2, Transport Streams”, SMPTE 312M-1999, 20 pages.
Le Gall, Didier J. “MPEG: A Video Compression Standard for Multimedia Applications”, Communications of the ACM, Apr. 1991, vol. 34, No. 4, pp. 47-57.
Le Gall, Didier J. “MPEG Video Compression Algorithm. A Review”. Proc. SPIE vol. 1452, Image Processing Algorithms and Techniques II (1991), pp. 444-457.
Joe Davis, “Digital Video Systems Document” Invention Disclosure, San Jose, California Jul. 16, 1997.
Davis Joseph
Zhang Ji
An Shawn S.
Beyer Weaver & Thomas LLP
Cisco Technology Inc.
LandOfFree
Methods and apparatus for facilitating network splicing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for facilitating network splicing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for facilitating network splicing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3709663