Adaptive equalization apparatus with equalization parameter setting adaptively adjusted according to edges of equalizer output monitored in real-time manner and related method thereof

An adaptive equalization method, comprising:

• receiving a first signal and equalizing the first signal according to an equalization parameter setting to thereby generate a second signal;
• monitoring edges of the second signal in a real-time manner to thereby generate a detection result;
• and
• adaptively adjusting the equalization parameter setting according to the detection result;
• wherein the step of monitoring the edges of the second signal in the real-time manner to thereby generate the detection result comprises:
• detecting the edges of the second signal in the real-time manner;
• and
• measuring a data width between two successive detected edges to thereby generate the detection result.

An adaptive equalization apparatus, comprising:

• an equalizer, for receiving a first signal and for equalizing the first signal according to an equalization parameter setting to thereby generate a second signal;
• an over-sampling circuit, for over-sampling the second signal to generate a plurality of data samples;
• a monitor circuit, for monitoring edges of the second signal in a real-time manner to thereby generate a detection result, wherein the over-sampling circuit is electrically connected between the equalizer and the monitor circuit, the monitor circuit generates the detection result according to the data samples, and the monitor circuit comprises:
• an edge detection unit, comprising:
• a plurality of XOR logic gates each for performing an XOR operation upon every two successive data samples of the data samples generated from the over-sampling circuit, thereby generating a plurality of logic outputs;
• and
• a data width measurement unit, electrically connected to the edge detection unit, for measuring a data width between two successive edges by counting consecutive logic outputs each having a first logic value between two logic outputs each having a second logic value different from the first logic value, thereby generating the detection result;
• and
• a control logic, electrically connected to the equalizer, for adaptively adjusting the equalization parameter setting according to the detection result.

An adaptive equalization method, comprising:

• receiving a first signal and equalizing the first signal according to an equalization parameter setting to thereby generate a second signal;
• over-sampling the second signal to generate a plurality of data samples;
• monitoring edges of the second signal in a real-time manner to thereby generate a detection result, wherein the detection result is generated according to the data samples, and the step of monitoring the edges of the second signal in the real-time manner to thereby generate the detection result comprises:
• performing an XOR operation upon every two successive data samples of the data samples, thereby generating a plurality of logic outputs;
• and
• measuring a data width between two successive edges by counting consecutive logic outputs each having a first logic value between two logic outputs each having a second logic value different from the first logic value, thereby generating the detection result;
• and
• adaptively adjusting the equalization parameter setting according to the detection result.