Patent ID: 7024097

Claim:
A method of processing media samples comprising: providing one or more media samples individual ones of which have a timecode; and calculating a represented time associated with one or more of the media samples in accordance wit the following equation: time= x +(frame count* UPF +offset)/ UPS , where: x is a measure of time associated with the media sample and ascertained from the media sample's timecode; “frame count” is a value associated with a frame number of the media sample; “UPF” comprises a number of basic units of time to be added for each field count increment; “offset” specifies a difference between the time represented by the timecode associated with the media sample and a represented time, wherein said offset is selected as a function of true frame rate; and “UPS” comprises a number of basic units of time in a timebase per unit of time; associating calculated represented times with respective media samples to provide a reduced-drift time value associated with individual media samples.