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. 23, 2020
Filed:
Dec. 19, 2018
Electronics and Telecommunications Research Institute, Daejeon, KR;
Industry-academic Cooperation Foundation, Yonsei University, Seoul, KR;
Wilus Institute of Standards and Technology Inc., Seongnam-si, Gyeonggi-do, KR;
Taegyu Lee, Seongnam-si, KR;
Hyunoh Oh, Seongnam-si, KR;
Jeongil Seo, Daejeon, KR;
Yongju Lee, Daejeon, KR;
Seungkwon Beack, Seoul, KR;
Kyeongok Kang, Daejeon, KR;
Daeyoung Jang, Daejeon, KR;
Youngcheol Park, Wonju-si, KR;
Daehee Youn, Seoul, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, Seoul, KR;
WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Seongnam-si, KR;
Abstract
The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor. To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.