Patent ID: 7272522

Claim:
An automatic parameter adjustment method for use with a synchronous high-speed transmission system which includes an emitter and a receiver, the method comprising: evaluating the quality of a signal received by the receiver over a high speed link, which signal was emitted by the emitter using a set of parameter values, wherein evaluating includes determining a digital eye by over-sampling the received signal, XORing the sample of the over-sampled received signal and the over-sampled received signal shifted by 1 bit, wherein the digital eye characterizes positions of signal transitions; repeating the step of evaluating for signals emitted by the emitter using a plurality of sets of parameter values; determining a number of signal transitions for each signal based on the digital eyes, wherein the number of signal transitions corresponds to the quality of the received signals; selecting the set of parameter values which provides a desired signal quality; requesting the emitter to use the determined set of parameter values; and employing the requested set of parameter values to emit signals.