Patent ID: 8918828
Filing Date: 2014-12-23
Classification: H04N

Abstract:
1. A method comprising: parsing a data sequence in a packetized transport stream to obtain a user data identifier (UDI) associated with a pre-defined data structure, the UDI being registered with a registration authority and being different from a standard identifier that is defined by a standard organization in a published standard document; and recognizing the UDI; wherein the pre-defined data structure is a variable length data structure and a format of the pre-defined data structure is defined by a value included in the UDI, and wherein parsing comprises extracting private user data from the data sequence according to the pre-defined data structure corresponding to the recognized UDI and parsing the data sequence according to a syntax defined by a media standard, the syntax specifying a location of the pre-defined data structure; and wherein parsing the data sequence comprises: extracting the private user data from the data sequence according to the location.