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:
Jul. 26, 2011
Filed:
Oct. 01, 2009
Tetsujiro Kondo, Tokyo, JP;
Masaaki Hattori, Chiba, JP;
Tsutomu Watanabe, Kanagawa, JP;
Hiroto Kimura, Tokyo, JP;
Sakon Yamamoto, Tokyo, JP;
Akihiko Arimitsu, Tokyo, JP;
Tetsujiro Kondo, Tokyo, JP;
Masaaki Hattori, Chiba, JP;
Tsutomu Watanabe, Kanagawa, JP;
Hiroto Kimura, Tokyo, JP;
Sakon Yamamoto, Tokyo, JP;
Akihiko Arimitsu, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A signal processing system, a signal processing apparatus and method, a recording medium, and a program in which high frequency components of a narrow-range signal having suppressed high frequency components can be restored with high accuracy. A narrow-range audio signal having low frequency components is divided into frames by a frame-unit dividing unit, and is spectral-transformed into a signal on a frequency domain by a DCT transform unit. A learning-produced-data table extracts, at an address corresponding to a class code supplied from a classifying unit, high-frequency-component DCT spectrum data. In a spectrum combining unit, the extracted high-frequency-component DCT spectrum data is combined with low-frequency-component DCT spectrum data output from the DCT transform unit. Subsequently, a broad-range audio signal having combined high frequency components and low frequency components is output.