Method for Transmitting and Receiving of an Information-Signal Via a Network, Transmitter and Receiver for Application of Method and Splitter Unit for Application Within the Network

摘要

An information-signal (e.g., video-stream of certain quality) (SB1.1, SB1.2, SB1.3, . . . ) is split into two or more (Multicast-) sub-data-streams and transmitted via different channels (CH1,CH2). Thereby, on switching over of two information-signals, seamlessly switch over to another information-signal (e.g., from SD to HD quality) is enabled (in particular at the GOP-boundary in case of video).

主权项

1. A method of transmitting and receiving a first information-signal, which is transmitted via a network from a transmitter to a receiver, whereby the first information-signal consists of a sequence of subsequent signal-blocks, whereby transmission of the first information-signal is realized by means of n sub-data-streams, whereby n being an integer, whereby n≧2, whereby within subsequent groups of n subsequent signal-blocks of the first information-signal the first signal-blocks within the groups are forming a first sub-data-stream, which first sub-data-stream is transmitted via a first channel of the network, whereby the second signal-blocks within the groups are forming a second sub-data-stream, which second sub-data-stream is transmitted via a second channel, and in case n>2, the nth signal-blocks within the groups are forming a nth sub-data-stream, which nth sub-data-stream is transmitted via a nth channel of the network,
whereby a switching-over to reception of a second information-signal takes place, whereby the second information-signal is formed of a sequence of subsequent signal-blocks, whereby transmission of the second information-signal is realized also via n sub-data-stream, whereby in subsequent groups of n subsequent signal-blocks of the second information-signal, the first signal-blocks within the groups a forming a (n+1)th sub-data-stream, whereby the (n+1)th sub-data-stream is transmitted via a (n+1)th channel of the network, whereby the second signal-blocks within the groups are forming a (n+2)th sub-data-stream, which (n+2)th sub-data-stream is transmitted via a (n+2)th channel, and in case n>2, the nth signal-blocks within the groups are forming a 2nth sub-data-stream, whereby the 2nth sub-data-stream is transmitted via a 2nth channel of the network, whereby for n=2, the following steps are preformed while switching-over is performed in dependence of a switching-over-command which is generated within a first time-interval, within which said first signal-block of a group of signal-blocks of the first information-signal is received,
the first signal-block of the group of the first information-signal is received within the first time-interval via the first channel,after the switching-over-command the connection via the second channel is switched-off and a connection via the fourth channel is requested,a signal-block of the sequence of signal-blocks of the second information-signal is received within the second time-interval following the first time-interval via the fourth channel,within the second time-interval the connection via the first channel is switched-off and a connection via the third channel is requested,a subsequent signal-block of the sequence of signal-blocks of the second information-signal is received within the third time-interval following the second time-interval via the third channel.