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:
Sep. 07, 2004
Filed:
Apr. 01, 1999
Fang-Chu Chen, Taipei, TW;
Abstract
A real time, multi-function beat counting system used in machine perception of musical rhythms employs a high speed stable algorithm including down sampling and group summing of the original signal, pulse matching on peak points, and check-frame decision making. The down sampled and group summed signal is utilized to derive an onset peak train formed of a series of data points. The onset peak train is divided into frames, and a threshold value is determined for each frame. In each frame, peak profiles are determined, each comprising successive data points within the frame having values greater than the threshold value. Within each peak profile, a peak point is identified. An algorithm is employed to compare the onset peak train with a plurality of unit data pulse sequences having different periods, and a match is determined between the onset peak train and the closest one of the unit data pulse sequences to identify the period of the rhythm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile