Video and audio signals are streamed to remote viewers that are connected to a communication network. A host server receives an originating video and audio signal that may arrive from a single source or from a plurality of independent sources. The host server provides any combination of the originating...http://www.google.com.tw/patents/US7103668?utm_source=gb-gplus-share專利 US7103668 - Method and apparatus for distributing multimedia to remote clients