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:
Jan. 12, 2010
Filed:
Feb. 07, 2006
Hiroshi Sawada, Nara, JP;
Shoko Araki, Kyotanabe, JP;
Ryo Mukai, Nara, JP;
Shoji Makino, Machida, JP;
Hiroshi Sawada, Nara, JP;
Shoko Araki, Kyotanabe, JP;
Ryo Mukai, Nara, JP;
Shoji Makino, Machida, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A frequency domain transforming section transforms mixed signals observed by multiple sensors into mixed signals in the frequency domain, a complex vector generating section generates a complex vector by using the frequency-domain mixed signals, a normalizing section generates a normalized vector excluding frequency dependence of the complex vector, and a clustering section clusters the normalized vectors to generate clusters. Then, a separated signal generating section generates separated signals in the frequency domain by using information about the clusters and a time domain transforming section transforms the separated signals in the frequency domain into separated signals in the time domain.