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:
Sep. 13, 2011
Filed:
Apr. 03, 2008
Pavel Martynovich, Suwon-si, KR;
Austin Kim, Seongnam-si, KR;
Jae-bum Kim, Seoul, KR;
Chul-yong Ahn, Suwon-si, KR;
Pavel Martynovich, Suwon-si, KR;
Austin Kim, Seongnam-si, KR;
Jae-Bum Kim, Seoul, KR;
Chul-Yong Ahn, Suwon-si, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
An apparatus and a method for enhancing speech intelligibility in a mobile terminal. A complex spectrum calculator calculates complex spectra of one input frame of an input speech signal by Fourier transform, a speech level calculator calculates its instant levels, an average speech level calculator calculates an average speech level of the speech frame using the instant levels, if the input frame is a speech frame, a scaling factor calculator calculates scaling factors by comparing the average speech level with the instant levels, an HPF characteristic calculator calculates amplitude characteristics using the scaling factors, a HPF high-pass-filters the complex spectra using the amplitude characteristics, a synthesizer converts high-pass-filtered signals to time signals by inverse Fourier transform and synthesizes the time signals, and a combiner outputs an enhanced intelligibility speech signal by combining the synthesized time signal with the input frame.