06357042 is referenced by 473 patents.

An authoring system for interactive video has two or more authoring stations for providing authored metadata to be related to a main video data stream and a multiplexer for relating authored metadata from the authoring sources to the main video data stream. The authoring stations annotate created metadata with presentation time stamps (PTS) from the main video stream, and the multiplexer relates the metadata to the main video stream by the PTS signatures. In analog streams PTS may be created and integrated. In some embodiments there may be multiple and cascaded systems, and some sources may be stored sources. Various methods are disclosed for monitoring and compensating time differences among sources to ensure time coordination in end product. In different embodiments transport of metadata to an end user station is provided by Internet streaming, VBI insertion or by Internet downloading. User equipment is enhanced with hardware and software to coordinate and present authored material with the main data stream.

Title
Method and apparatus for multiplexing separately-authored metadata for insertion into a video data stream
Application Number
9/235781
Publication Number
6357042 (B2)
Application Date
January 22, 1999
Publication Date
March 12, 2002
Inventor
Kamal Bhadada
12782 Torrey Bluff Dr. #103, San Diego
CA, US
P Venkat Rangan
13011 Callcott Way, San Diego
CA, US
Mohan Mardikar
12640 Torrey Bluff Dr. #7, San Diego
CA, US
Indranil Chakraborty
12633 El Camino Real #3408, San Diego
CA, US
Mehul Y Shah
12633 El Camino Real #3408, San Diego
CA, US
Anand Srinivasan
12718 Torrey Bluff Dr. #155, San Diego
CA, US
Agent
Central Coast Patent Agency
US
Agent
Donald R Boys
US
IPC
H04N 7/025
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