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:
Dec. 29, 2009
Filed:
Feb. 06, 2004
Applicants:
Vinod Prakash, Bangalore, IN;
Sarat Chandra Vadapalli, Karnataka, IN;
Anil Kumar, Karnataka, IN;
Preethi Konda, Karnataka, IN;
Inventors:
Vinod Prakash, Bangalore, IN;
Sarat Chandra Vadapalli, Karnataka, IN;
Anil Kumar, Karnataka, IN;
Preethi Konda, Karnataka, IN;
Assignee:
Ittiam Systems (P) Ltd., Bangalore, Karnataka, IN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A technique to enhance audio quality of a quantized audio signal when a perceptual audio coder is operating at low bit rates. The perceptual audio coder uses a modified two-loop quantization technique that maintains audio quality at medium to high bit rates while eliminating artifacts at low bit rates. The perceptual audio coder saves vanishing bands by stealing bits from surviving bands to reduce artifacts at low bit rates.