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. 09, 2026
Filed:
Apr. 22, 2024
Ali Corporation, Hsinchu, TW;
Wei Yang Wu, Guangdong, CN;
ALi Corporation, Hsinchu, TW;
Abstract
A noise reduction signal generator is provided. The noise reduction signal generator includes a comparator, a conversion circuit, and a low pass filter circuit. The comparator receives an input signal and a reference signal and compares the input signal and the reference signal to generate a first pulse width modulation (PWM) signal. A pulse width of the first PWM signal is correlated to a comparison result between a signal intensity of the input signal and a signal intensity of the reference signal. The conversion circuit converts the first PWM signal to a second PWM signal. A phase of the second PWM signal is different from a phase of the first PWM signal. The low pass filter circuit performs a filtering operation on the second PWM signal to generate a noise inversion signal. The noise inversion signal is configured to reduce noise of the input signal.