US Patent 7923621 Tempo analysis device and tempo analysis method

Patent 7923621 was granted and assigned to Sony on April, 2011 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Sony

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7923621

Date of Patent

April 12, 2011

Patent Application Number

10551403

Date Filed

March 9, 2004

Patent Citations Received

‌

US Patent 11749240 Beat timing generation device and method thereof

Patent Primary Examiner

‌

Elvin G. Enad

Patent abstract

A tempo analyzer to analyze the tempo of sound such as a musical composition or the like is provided in which a controller (9) takes, based on level information on a sound signal from an analysis data extraction unit (62), a frame which is a predetermined unit-time interval as a unit of process, detects positions of peaks of the level of the sound signal (apex of the change in level) higher than a predetermined level to find a time interval (peak-to-peak interval) between the peak positions in the frame, and determines a peak-to-peak time interval having occurred frequently as a tempo.