Patent ID: 7539213

Claim:
Method for implementing trick modes when encoded video data stored on a storage medium is being transmitted to a receiver over a bus, the stored encoded video data being data packets and tag values assigned to the data packets and corresponding to time-stamps, the time of transfer over the bus of a data packet read from the storage medium being defined through a comparison of a tag value with a value counted from a transfer clock, a tag value for comparison being the stored tag value as long as a trick mode is not implemented, the method comprising: transferring a packet over the bus by using a modified tag value as the tag value for comparison, wherein the modified tag value being determined by: computation of a difference between two consecutive packets, according to stored tag values of the two consecutive packets, computation of an offset value according to the difference and trick mode parameters received over the bus, addition of the offset to a stored tag value of a preceding transmitted packet to output the modified tag value.