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. 15, 2010
Filed:
Jun. 29, 2006
In-seon Jang, Gyeonggi-do, KR;
Ki-joeng Nam, Gyeongbuk, KR;
Hee-youl Choi, Daegu, KR;
Seung-jin Choi, Gyeongbuk, KR;
Kyeong-ok Kang, Daejon, KR;
In-Seon Jang, Gyeonggi-do, KR;
Ki-Joeng Nam, Gyeongbuk, KR;
Hee-Youl Choi, Daegu, KR;
Seung-Jin Choi, Gyeongbuk, KR;
Kyeong-Ok Kang, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Postech Foundation, Gyeongbuk, KR;
Abstract
A method and apparatus for separating a multi-channel mixed signal are provided. The method includes the steps of: a) transforming a temporal domain to a frequency domain by performing a discrete Fourier transform onto at least one of mixed signals inputted from an external device through multi-channel; b) estimating multi-decorrelation by calculating a plurality of cross power spectra for the mixed signal in the transformed frequency domain; c) estimating a separation coefficient of the mixed signal based on relative optimization in order to decorrelate the calculated cross power spectra, where the separation coefficient is serially updated; d) transforming the frequency domain to the temporal domain by performing an inverse discrete Fourier transform on the estimated separation coefficient in the temporal domain; and e) separating an original signal from the mixed signal by filtering the mixed signal using the separation coefficient of the transformed temporal domain.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile