Patent ID: 11888654
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. A method of compensating for an offset of a differential signal generator, the method comprising:
receiving a single-ended pulse amplitude modulation (PAM)-N signal, where N is an odd number;
generating differential signals based on the single-ended PAM-N signal, a reference signal, and a pair of compensation signals;
generating a comparison result signal of a positive signal and a negative signal included in the differential signals;
generating a digital signal based on the single-ended PAM-N signal;
detecting a predetermined signal pattern from the digital signal;
adjusting a count value according to whether the comparison result signal corresponding to the detected signal pattern matches a predetermined offset pattern; and
adjusting the reference signal or the pair of compensation signals based on the count value.