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. 14, 2013
Filed:
Oct. 04, 2005
Yuji Yamada, Tokyo, JP;
Koyuru Okimoto, Tokyo, JP;
Yuji Yamada, Tokyo, JP;
Koyuru Okimoto, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An audio signal processing device is provided whereby, from two systems of audio signals in which audio signals of multiple audio sources are included, the audio signals of the multiple audio sources can be suitably separated. The audio signal processing device divides each of two systems of audio signals into a plurality of frequency bands, calculates a level ratio or a level difference of the two systems of audio signals, at each of the divided plurality of frequency bands, and extracts and outputs frequency band components of and nearby values regarding which the level ratio or the level difference calculated at the level comparison means have been determined beforehand. The frequency band components have a level ratio or level difference at and nearby the values determined beforehand which are different one from another.