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. 22, 2014
Filed:
Sep. 13, 2010
Christos Vezyrtzis, New York, NY (US);
Aaron Klein, Flushing, NY (US);
Yannis Tsividis, New York, NY (US);
Daniel P. W. Ellis, New York, NY (US);
Christos Vezyrtzis, New York, NY (US);
Aaron Klein, Flushing, NY (US);
Yannis Tsividis, New York, NY (US);
Daniel P. W. Ellis, New York, NY (US);
The Trustees of Columbia University in the City of New York, New York, NY (US);
Abstract
Apparatus and methods for processing compression encoded signals are provided. In some embodiments, a signal processing method is provided that includes receiving a subband of a compression encoded signal at a subband processor, generating envelope information regarding the subband of the compression encoded signal to provide changes in the dynamic range of the compression encoded signal for fixed-point digital signal processing, processing the compression encoded signal with a fixed-point companding digital signal processor using the envelope information, and producing a processed compression encoded signal at the output of the subband processor.