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. 05, 2021
Filed:
Sep. 11, 2018
Hrl Laboratories, Llc, Malibu, CA (US);
Yuri Owechko, Newbury Park, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
A method for increasing accuracy and reducing computational requirements for blind source separation of mixtures of signals in multi-path environments includes receiving a plurality of channel inputs, each channel input comprising a mixture of signals from a plurality of sources, performing a short time Fourier transform on each channel input of the plurality of channels, wherein a respective output of a respective short time Fourier transform on a respective channel is a respective time-frequency distribution for the respective channel, vectorizing each respective time-frequency distribution into a respective mixed frequency and time vector, combining each respective mixed frequency and time vector into a mixed frequency and time matrix, and performing blind source separation on the mixed frequency and time matrix to separate the mixture of signals from the plurality of sources into a plurality of signal source channels, each respective signal source channel comprising signals from a respective source.