Interactive video distribution systems – Video distribution system with upstream communication – Having link to external network
Reexamination Certificate
2007-07-10
2007-07-10
Bui, Kieu-Oanh (Department: 2623)
Interactive video distribution systems
Video distribution system with upstream communication
Having link to external network
C725S112000, C725S115000, C725S118000, C725S134000
Reexamination Certificate
active
09676381
ABSTRACT:
A method and associated apparatus for announcing and identifying metadata relating to available video programs and/or enhancements in an enhanced television communications system compliant with the standard set forth by the Advanced Television Enhancement Forum (ATVEF). In particular, the method provides for a new attribute to the existing Session Description Protocol (SDP) announcement specified by the ATVEF standard which is used by client receivers to access metadata. Metadata is data that describes other data, in particular, that describe available video programs and/or enhancements transmitted by a content creator and/or transport operator. The new SDP announcement provides a Universally Unique Identifier (UUID) to allow client receivers to identify the incoming metadata. Additionally, the new SDP announcement further can provides the address and/or port if the metadata is located on a network database. After receiving this new SDP announcement, a client receiver can retrieve the metadata and store it in its local memory. The client receiver may present the metadata to the user to allow the user to select which one or more television programs and/or enhancements to download and view or merely to store for later use. Or, the client receiver may be automatically programmed to receive the television program and/or enhancement based on a specified criteria and information provided in the metadata.
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Blakely , Sokoloff, Taylor & Zafman LLP
Bui Kieu-Oanh
Intel Corporation
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