Patent ID: 7552352
Filing Date: 2009-06-23
Classification: G11B,H04N

Abstract:
1. A method for synchronizing signals, comprising: receiving, from a source, a first signal and a second signal by a receiving apparatus of a receiving system, the first and second signals to be synchronously displayed on a display apparatus of the receiving system, the first and second signals having been time-synchronized at the source, the first signal having content of a first modality and a first plurality of time stamps originating from the source, the second signal having content of a second modality and a second plurality of time stamps originating from the source, the second plurality of time stamps being synchronized with the first plurality of time stamps; determining at a plurality of times on a real-time clock at the receiving system whether the first and second signals are time-synchronized relative to the clock, said determining being based on analyzing the first and second plurality of time stamps in relation to the clock; and reducing the time rate of displaying one of the first signal and the second signal when said determining determines that the first and second signals are not time-synchronized relative to the clock such that the one is time advanced relative to the remaining other of the first signal and the second signal, said reducing being directed to time-synchronizing said displaying of the first and second signals on the display apparatus.