| 摘要 |
<p>A stereoscopic viewing apparatus 16 is synchronized with a display 2. A signal 8 generated by or synchronised with the display 16 is transmitted. The signal 8 comprises a sequence of data packets (204), each data packet (202a-e) in the sequence comprising an identifying portion of data. The stereoscopic viewing apparatus 16 receives a data packet (202b) from the sequence of data packets (204) and may determine a subsequent receiving frequency from the data packet. A position of the data packet (202b) in the sequence of data packets (204) is identified using said identifying portion. Timing information related to the data packet (202b) is determined using said position. The timing information is used for synchronization of the stereoscopic viewing apparatus 16 with the display 2 and for determining when to activate a receiver 22 in the stereoscopic viewing apparatus 16 for receiving a subsequent packet. The receiver 22 may be deactivated if a pre-determined number of packets have been received. A further sequence of data packets may subsequently be transmitted; receiver may be activated to receive the further sequence at an expected arrival time. If a pre-determined time interval elapses from the expected arrival time the receiver may be deactivated.</p> |
