TRANSMISSION SYSTEM AND TRANSMISSION METHOD Russian patent published in 2015 - IPC H04N7/15 H04L12/927 H04N21/63 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to data transmission systems. A transmission system (1) transmits and receives basic data needed to reproduce an image or audio and extended data used to improve image and audio quality through a communication network (2) between transmission terminals (10). The transmission system (1) includes: a basic data relay system (40) which includes: a plurality of basic data relay modules (430) for relaying basic data transmitted from a source transmission terminal from among transmission terminals (10) to a target transmission terminal from among transmission terminals (10); and a selection module which selects one basic data relay module (430) from among basic data relay modules (430) for each communication between transmission terminals (10); and an extended data relay system which includes: an extended data relay module (36) for relaying extended data transmitted from a source transmission terminal to a target transmission terminal.

EFFECT: reduced load on a specific relay server when transmitting images and audio.

10 cl, 29 dwg