Patent 7239849 was granted and assigned to Altera on July, 2007 by the United States Patent and Trademark Office.
Possible deficiencies of a communication link are detected and automatically counteracted, at least to some degree. The deficiencies addressed can include phase shift and attenuation compensation. The counter-action can include adjustment of pre-emphasis given a signal applied to the communication link and/or adjustment of equalization given a signal received from the communication link.