Patent ID: 7653284
Filing Date: 2010-01-26
Classification: G11B,H04N

Abstract:
1. Method of editing a data stream, the data stream having a first unique identifier of an identifier space and having assigned metadata, the metadata comprising meta information and a metadata link, the metadata link comprising the first unique identifier and at least one data packet identifier, said method comprising: performing an editing operation on the data stream; assigning a second unique identifier of the identifier space to the edited data stream; storing the first unique identifier as history data for resolving links of edited data and corresponding metadata; and using a decision matrix for updating the metadata link in accordance with the editing operation, wherein said decision matrix comprises information of at least two cases of affected metadata links in one direction of said decision matrix and at least two cases of stream editing operations in a second direction of said decision matrix, and corresponding cross points in said decision matrix which determine what respective update to make to said metadata link.