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:
Nov. 22, 2022
Filed:
Apr. 08, 2020
Electronics and Telecommunications Research Institute, Daejeon, KR;
Kwangwoon University Industry-academic Collaboration Foundation, Seoul, KR;
Hochong Park, Seongnam-si, KR;
Seung Kwon Beack, Daejeon, KR;
Jongmo Sung, Daejeon, KR;
Seong-Hyeon Shin, Seoul, KR;
Mi Suk Lee, Daejeon, KR;
Tae Jin Lee, Daejeon, KR;
Jin Soo Choi, Daejeon, KR;
Abstract
An inventive concept relates to an audio coding method to which CNN-based frequency spectrum recovery is applied. An inventive concept transmits a part of frequency spectral coefficients generated in transform coding to a decoder and the decoder recovers the frequency spectral coefficient not transmitted. Furthermore, the signs of frequency spectral coefficient are transmitted from an encoder to the decoder depending on a sign transmission rule.