Receiver including negative covariance generation filter and electronic device including the same

An operation method of a receiver, the method comprising:

• generating a pre-processing signal by pre-processing a received signal from an external device;
• generating a delay signal by delaying the pre-processing signal by a unit time interval;
• generating a filter signal from the pre-processing signal by subtracting the delay signal from the pre-processing signal;
• generating a plurality of error threshold values and a plurality of data threshold values based on the filter signal;
• and
• performing an equalizing operation on the pre-processing signal based on the plurality of error threshold values.

An electronic device comprising:

• a functional module configured to control the electronic device and to perform a function of the electronic device;
• a buffer module configured to store data and a program used in operation of the functional module;
• and
• a communication module configured to communicate with another electronic device, the communication module including a transmitter and a receiver,
• wherein the receiver includes:
• a pre-processing circuit configured to pre-process a received signal from the other electronic device to generate a pre-processing signal,
• an equalization circuit configured to generate an equalization signal based on the pre-processing signal and a plurality of error threshold values, and
• a threshold generation block configured to generate the plurality of error threshold values and a plurality of data threshold values, and
• wherein the threshold generation block is configured to:
• generate a delay signal by delaying the equalization signal by a unit time interval,
• generate a filter signal by subtracting the delay signal from the equalization signal, and
• generate the plurality of error threshold values and the plurality of data threshold values based on the filter signal.