| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a receiving circuit that can implement an adaptive equalization process with a small circuit area and at a low power consumption by dispensing with a large bit width digital operation. <P>SOLUTION: The receiving circuit includes: an equalization circuit for applying an equalization process depending on an equalization coefficient to a received signal to output an equalized signal; an error calculation circuit for computing a first signal having signal values of 0 and 1 depending on magnitude relationships between the equalized signal and a first threshold, computing a second signal having signal values of 0 and 1 depending on magnitude relationships between the equalized signal and a second threshold, and calculating a difference between the frequency of occurrence of a predetermined pattern of 0 and 1 occurring in the first signal and the frequency of occurrence of the predetermined pattern of 0 and 1 occurring in the second signal; and an adaptive equalization control circuit for adjusting the equalization coefficient in accordance with the difference. <P>COPYRIGHT: (C)2012,JPO&INPIT |
