Synchronization of signals

A system for synchronizing signals, comprising:

• receiving means for 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 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, the second signal having content of a second modality;
• display means for displaying on the display apparatus the first and second signals, said displayed first and second signals being accessible to a user;
• and
• manual reducing means for manually reducing, by the user, the time rate of displaying one of the first signal and the second signal, said manually reducing being directed to time-synchronizing said displaying of the first and second signals on the display apparatus.

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-synchronize 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 CR at the receiving system whether the first and second signals are time-synchronized relative to the clock CR, said determining being based on analyzing the first and second plurality of time stamps in relation to the clock CR;
• 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 CR 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.

A system for synchronizing signals, comprising:

• receiving means for 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 timestamps originating from the source, the second signal having content of a second modality and a second plurality of timestamps originating from the source, the second plurality of time stamps being synchronized with the first plurality of time stamps;
• determining means for determining at a plurality of times on a real-time clock CR at the receiving system whether the first and second signals are time-synchronized relative to the clock CR, said determining being based on analyzing the first and second plurality of timestamps in relation to the clock CR;
• and
• reducing means for 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 CR 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.