Patent ID: 6877017

Claim:
A device for filtering added information comprising: a memory for storing table IDs and a memory (M ver) for storing version numbers of sections for each of the table IDs, a combination of at least one of the sections forming a table which added information defines; a comparing unit for determining matching of a table ID included in a present section with the table IDs stored in the memory for storing the table IDs upon reception of the present section, and comparing the version number of the matched table ID to the version number of a received section number; and a section processing unit for receiving and processing the present section if it is determined that the version number stored in the matched table ID is not the same as the version number of the present section, a size of the memory (M ver) for storing the version numbers of the sections being equivalent to: M ver=N× 8 bits×2=16 N, where N=a number of the table IDs which are version masked in the version memory (M ver).