Method and apparatus for automatic volume control in an audio player of a mobile communication terminal
US8306241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2006 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Aug 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G9/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An automatic gain controller and a method using the same are provided. The automatic gain controller and method analyze background noise by operating a microphone mounted in a mobile communication terminal and automatically control the gain of the signal part which is non-audible due to the background noise. Thus, a user may listen to music by using an earphone or a headphone connected to the mobile communication terminal in an environment with background noise. The method includes receiving an audio signal to be reproduced, receiving a background noise signal introduced through a microphone, controlling a gain of the audio signal by comparing the background noise signal and the audio signal and outputting the gain-controlled audio signal so that the user can listen to the gain-controlled audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.