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:
May. 19, 2026
Filed:
Sep. 24, 2024
Asia Vital Components (China) Co., Ltd., Shenzhen, CN;
Liqiu Liang, Shenzhen, CN;
ASIA VITAL COMPONENTS (CHINA) CO., LTD., Shenzhen, CN;
Abstract
In a fan control system and method, fans start operating according to a default value, and it is detected whether there are PWM signals input to the fan control system; if not, the fans keep operating according to the default value; or if yes, it is detected whether there is any change in the input PWM signals; if not, the fans keep operating according to presently set values; or if yes, the fan control system computes to derive a system PWM value, based on which internal PWM values are set for the fans to cycle within corresponding intervals. The technique of spread spectrum (SS) of rotational speed is used to reduce resonance energy concentration and amplitude, and accordingly reduce noise. And, an average rotational speed of the fan can be set as a target value, enabling the whole computer system to have consistent heat dissipation without causing unstable operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile