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. 04, 2008
Filed:
Jun. 11, 2002
Minoru Tsuji, Chiba, JP;
Shiro Suzuki, Kanagawa, JP;
Keisuke Toyama, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
In an acoustic signal encoding apparatus (), a tonal noise verification unit () verifies whether the input acoustic time-domain signals are tonal or noisy. If the input acoustic time-domain signals are tonal, tonal component signals are extracted by a tonal component extraction unit (), and tonal component parameters are normalized and quantized in a normalization/quantization unit (). The residual time-domain signals, obtained on extracting the tonal component signals from the acoustic time-domain signals, are transformed by an orthogonal transforming unit () into the spectral information, which spectral information is normalized and quantized by a normalization/quantization unit (). A code string generating unit () generates a code string from the quantized tonal component parameters and the quantized residual component spectral information.