| 摘要 |
FIELD: physics, communications. ^ SUBSTANCE: invention relates to multimedia communication over IP and specifically relates to a signal mechanism used in multimedia communications to instruct a device not carryout synchronisation or jitter synchronisation between different multimedia streams. The improved system and method enable a transmitting electronic device to explicitly indicate streams in the transmitted multimedia stream which must not be synchronised or must include a given value of synchronisation jitter. The present invention helps a receiving device understand characteristics of streams. The present invention also enables a receiving device make an informed decision on whether a synchronisation jitter value must be used when synchronising two or more streams. For certain applications, such as unidirectional distribution video data or video PoC, the transmitting device can instruct the receiving device not carryout synchronisation or carryout limited synchronisation to ensure better quality of the multimedia signal. ^ EFFECT: higher quality of multimedia signal. ^ 36 cl, 4 dwg |
