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, 2020
Filed:
Jan. 10, 2018
Inventec (Pudong) Technology Corporation, Shanghai, CN;
Inventec Corporation, Taipei, TW;
INVENTEC (PUDONG) TECHNOLOGY CORPORATION, Shanghai, CN;
INVENTEC CORPORATION, Taipei, TW;
Abstract
An examination method comprises: generating a received audio signal according to sound generated from rotation of the fan by an audio receiving device; performing Fourier transform on the received audio signal to obtain a reference frequency domain signal; recognizing a plurality of characteristic bands according to the reference frequency domain signal; adjusting the received audio signal according to the characteristic bands respectively to form a plurality of casting audio signals corresponding to frequency components in the characteristic bands respectively; playing the casting signals sequentially by an audio casting device; and recognizing at least one key band among the characteristic bands according to the transmission rate of the hard drive upon playing the casting signals.