Receiver with transcoder and adaptive filter

An adaptive filtering circuit including:

• a transcoder circuit configured to transcode input symbols of a data stream from each of the input symbols being encoded with M-bit values to a stream of transcoded symbols, each of the transcoded symbols being transcoded from a respective one of the input symbols and encoded with a respective N-bit value in preparation for adaptive filtering, wherein N<M;
• an adaptive filter downstream from the transcoder circuit and configured to perform the adaptive filtering including removing noise from the stream of transcoded symbols output from the transcoder circuit to generate a stream of filtered transcoded symbols, each of the filtered transcoded symbols having a respective N-bit value, and the adaptive filter comprising
• a plurality of electronic circuits, each of the plurality of electronic circuits configured to receive the stream of transcoded symbols, and
• a plurality of delay elements connected to inputs of the plurality of electronic circuits and configured to delay reception of the stream of transcoded symbols at ones of the plurality of electronic circuits;
• and
• a recoder circuit downstream from the adaptive filter circuit and configured to recode the stream of filtered transcoded symbols output from the adaptive filter to a stream of recoded symbols, each of the recoded symbols being encoded with a respective M-bit value.

A method of operation for a receiver circuit, the method comprising:

• receiving at the receiver circuit a data stream defined by a plurality of input symbols, each of the input symbols being encoded with a respective M-bit value;
• transcoding the input symbols in the data stream from each of the input symbols being encoded with a respective M-bit value to a stream of transcoded symbols, each of the transcoded symbols being transcoded from a respective one of the input symbols and being encoded with a respective N-bit value in preparation for adaptive filtering, wherein N<M;
• performing the adaptively filtering, via a plurality of electronic circuits, of the transcoded symbols to generate a stream of filtered transcoded symbols, each of the filtered transcoded symbols having a respective N-bit value and the adaptive filtering comprising
• via a plurality of delay elements connected to inputs of the plurality of electronic circuits, delaying reception of the stream of transcoded symbols at ones of the plurality of electronic circuits, and
• subsequent to the delaying, receiving the stream of transcoded symbols at each of the plurality of electronic circuits;
• and
• recoding the stream of filtered transcoded symbols resulting from the adaptive filtering to a stream of recoded symbols, each of the recoded symbols being encoded with a respective M-bit value.