Patent 9942063 was granted and assigned to Altera on April, 2018 by the United States Patent and Trademark Office.
An apparatus includes an encoder adapted to encode data bits for transmission via a communication link using pulse amplitude modulation (PAM). The encoder includes a logic circuit. The logic circuit is adapted to perform a logic operation on a pattern of bits and the data bits in order to reduce a run-length and/or improve the DC balance of the data bits.