The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2023
Filed:
Oct. 11, 2021
Qualitas Semiconductor Co., Ltd., Seoul, KR;
QUALITAS SEMICONDUCTOR CO., LTD., Seoul, KR;
Abstract
A circuit for processing an N-level pulse amplitude modulation (PAM-N) signal according to an embodiment of the present invention comprises: an input unit receiving an input signal; a main amplifier connected to the input unit to amplify the input signal with a first gain; and an output unit outputting an output signal of the main amplifier, and the circuit further comprises an auxiliary amplifier connected in parallel with the main amplifier between the input unit and the output unit to variably amplify at least a portion of the input signal and apply the signal to the output unit according to a linearity improvement control signal corresponding to the output signal.