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. 17, 2002
Michael Mead Truman, San Francisco, CA (US);
Grant Allen Davidson, Burlingame, CA (US);
Matthew Conrad Fellers, San Francisco, CA (US);
Mark Stuart Vinton, San Francisco, CA (US);
Matthew Aubrey Watson, Sugar Land, TX (US);
Charles Quito Robinson, San Francisco, CA (US);
Michael Mead Truman, San Francisco, CA (US);
Grant Allen Davidson, Burlingame, CA (US);
Matthew Conrad Fellers, San Francisco, CA (US);
Mark Stuart Vinton, San Francisco, CA (US);
Matthew Aubrey Watson, Sugar Land, TX (US);
Charles Quito Robinson, San Francisco, CA (US);
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
Audio coding processes like quantization can cause spectral components of an encoded audio signal to be set to zero, creating spectral holes in the signal. These spectral holes can degrade the perceived quality of audio signals that are reproduced by audio coding systems. An improved decoder avoids or reduces the degradation by filling the spectral holes with synthesized spectral components. An improved encoder may also be used to realize further improvements in the decoder.