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Digital broadcast receiver (versions) and signal processing method Disclosed is a digital broadcast transmitter, having a random number generator for randomising an input data stream, having zero bytes inserted in a given position, a multiplexer for outputting a data stream generated by inserting certain known data into the position of zero bytes of the randomised data stream, an encoder for encoding the data stream from the output of the multiplexer and a modulator/radio-frequency converter for modulating encoded data, radio-frequency conversion of the modulated data and transmitting the converted radio-frequency data. Reception characteristics are improved even in a multibeam channel by extracting known data from the obtained signal using known data for synchronisation and level equalisation in digital broadcasting. |
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Method of checking match between states of video encoder and video decoder Disclosed is a method of checking whether the state of a first video processor matches that of a second video processor, where one of said video processors is a video encoder using predictive video coding, while the other is a video decoder capable of reproducing a decoded bit stream from an encoded bit stream generated by said video encoder. |
Another patent 2528640.