Patent Number:
7,043,684
Title:
Method for the synchronization of two digital data flows with identical content
Abstract:
The invention relates to a method of synchronizing two digital data streams with the same content, the method comprising the steps of: a) generating at given intervals for each of the two digital data streams S.sub.1 and S.sub.2 at least two characteristic numbers expressing at least one parameter characteristic of their content; b) generating from said numbers points D.sub.1 and D.sub.2 for each of the two streams S.sub.1 and S.sub.2 representing at least one of said characteristic parameters in a space of at least two dimensions, the points D.sub.1 corresponding to the stream S.sub.1 and the points D2 corresponding to the stream S2 that are situated in a time period T defining trajectories representative of the data streams S.sub.1 and S.sub.2 to be synchronized; c) shifting the time periods of duration T assigned to the digital data streams S.sub.1 and S.sub.2 relative to each other by calculating a criterion of superposition of said trajectories having an optimum value representing the required synchronization; d) choosing the shift between the time periods corresponding to said optimum value as a value representative of the synchronization.
Inventors:
Joly; Alexandre (La Motte Servolex, FR)
Assignee:
Telediffusion de France
International Classification:
H03M 13/00 (20060101); G06F 11/00 (20060101)
Expiration Date:
5/09/02018