Patent ID: 8316282

Claim:
A transmitter for transmitting an encoded data stream, said transmitter comprising: an input for receiving a data stream; a start code detector coupled to the input for detecting start codes in the data stream; a buffer, coupled to the input and controlled by the start code detector, for buffering partitions of the data stream; an encoder, coupled to an output of said buffer, for encoding a first partition of a data stream with a first error protection rate and for encoding a second partition of the data stream with a second error protection rate and for generating the encoded data stream, the first and second partitions being different partitions of the data stream and the first and second error protection rates being different error protection rates; a pseudo noise word generator controlled by the start detector for generating pseudo noise words; and a multiplexer, coupled to an output of said encoder and to an output of said pseudo noise word generator, for substituting start codes by the pseudo noise words in the encoded data stream.