Method and apparatus for sound discrimination
US6721701B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1999 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/0018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sound discriminator (107, 207) in accordance with the invention distinguishes or emphasis a specific audio signal or class or audio signals. The sound discriminator is employed in a digital audio encoding and/or decoding process. A comparator (110, 210) within the sound discriminator compares a received representation of an audio signal with a stored representation (112, 212) of a desired signal. An error between the two signals is determined and if the error is within an acceptable range, the stored representation of the desired signal replaces the actual received representation of the audio signal in an encoded or decoded stream of data. In this manner, a desired signal within an encoded or decoded signal is discriminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.