Patent ID: 11888656
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. An operating method of an equalizer, the operating method comprising:
amplifying an input signal through an input amplifier;
generating 1-1 to 1-N feedback signals through a first sampling circuit, wherein N is a natural number greater than or equal to 2;
generating 2-1 to 2-M feedback signals through a second sampling circuit, wherein M is a natural number greater than or equal to 2;
performing, through a first arithmetic circuit, weighted summation of received feedback signals among the 1-2 to 1-N feedback signals and the 2-2 to 2-M feedback signals;
performing, through a third arithmetic circuit, weighted summation of received feedbacks signals among the 1-2 to 1-N feedback signals and the 2-2 to 2-M feedback signals;
performing, through a second arithmetic circuit, weighted summation of an output signal of the input amplifier, an output signal of the first arithmetic circuit, and the 2-1 feedback signal, and outputting the weighted-summed output signal of the input amplifier, output signal of the first arithmetic circuit, and 2-1 feedback signal to the first sampling circuit; and
performing, through a fourth arithmetic circuit, weighted summation of the output signal of the input amplifier, an output signal of the third arithmetic circuit, and the 1-1 feedback signal and outputting the weighted-summed output signal of the input amplifier, output signal of the third arithmetic circuit, and 1-1 feedback signal to the second sampling circuit.