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:
Apr. 27, 2010
Filed:
May. 31, 2005
Xiaoqin Sun, Redmond, WA (US);
Tian Wang, Redmond, WA (US);
Hosam A. Khalil, Redmond, WA (US);
Kazuhito Koishida, Redmond, WA (US);
Wei-ge Chen, Issaquah, WA (US);
Xiaoqin Sun, Redmond, WA (US);
Tian Wang, Redmond, WA (US);
Hosam A. Khalil, Redmond, WA (US);
Kazuhito Koishida, Redmond, WA (US);
Wei-Ge Chen, Issaquah, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques and tools are described for processing reconstructed audio signals. For example, a reconstructed audio signal is filtered in the time domain using filter coefficients that are calculated, at least in part, in the frequency domain. As another example, producing a set of filter coefficients for filtering a reconstructed audio signal includes clipping one or more peaks of a set of coefficient values. As yet another example, for a sub-band codec, in a frequency region near an intersection between two sub-bands, a reconstructed composite signal is enhanced.