Patent ID: 7778279
Filing Date: 2010-08-17
Classification: H04N

Abstract:
1. A network unit that transmits a video channel to be played at a nominal motion speed, the network unit comprising: a signaling unit configured to receive a request from a decoding device requesting transmission of said video channel; a buffer including a plurality of memory locations configured to store one or more of a plurality of frames of said video channel, said buffer including at least a common read pointer and a dedicated read pointer each pointing to one of said plurality of memory locations; and a video transmitting unit configured to transmit said video channel towards said decoding device, initially as a dedicated multimedia stream dedicatedly supplied to said decoding device and including an anchor frame as a first transmitted video frame of said plurality of video frames based on said dedicated read pointer, and further in time as a common multimedia stream commonly supplied to a plurality of decoding devices based on said common read pointer, wherein said video transmitting unit is further configured to transmit said video channel within said dedicated multimedia stream having an earlier time frame with respect to transmission of said video channel within said common multimedia stream based on positions of said dedicated and common read pointers, and said transmitted dedicated multimedia stream is to be played by said decoding device at an averagely slower motion speed than said common multimedia stream is to be played by said decoding device so as to allow transmission towards said decoding device of said video channel initially within said transmitted dedicated multimedia stream to be resumed with said common multimedia stream.