Apparatus, method and recording medium for receiving four-level pulse amplitude modulation (PAM-4) signal
AssigneeFoundation for Research and Business, Seoul National University of Science and Technology
InventorsWon Young Lee, Young Min Lee
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Abstract
Proposed is a device for receiving a four-level pulse amplitude modulation (PAM-4) signal, which includes a first comparator for comparing a received PAM-4 signal with a predetermined threshold voltage to output a most significant bit (MSB) signal; and a second comparator for comparing the differential signal difference between the positive signal and negative signal of the received PAM-4 signal with a reference voltage to output a least significant bit (LSB) signal.
Claims13
A device for receiving a four-level pulse amplitude modulation (PAM-4) signal, comprising:
- a first comparator for comparing the received PAM-4 signal with a threshold voltage to output a most significant bit (MSB) signal;
- and
- a second comparator for comparing a differential signal difference between a positive signal and a negative signal of the received PAM-4 signal with a reference voltage to output a least significant bit (LSB) signal.
A method of receiving a four-level pulse amplitude modulation (PAM-4) signal, comprising the steps of:
- comparing, by a first comparator, the received PAM-4 signal with a threshold voltage to output a most significant bit (MSB) signal;
- and
- comparing, by a second comparator, a differential signal difference between a positive signal and a negative signal of the received PAM-4 signal with a reference voltage to output a least significant bit (LSB) signal.
Dependencies are inferred from the claim text.