Method and apparatus for automatically setting speaker mode in audio/video system
US7792310B2 · kind B2 · utility
8Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jul 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for automatically determining a characteristic of a speaker and automatically setting a speaker mode in an audio/video system. The method includes: detecting a current for operating the speaker by inputting a predetermined signal; measuring an impedance characteristic of the speaker in accordance with a frequency change based on the detected current; determining a speaker type based on the measured impedance characteristic; and setting a speaker mode based on an impedance characteristic curve of the discriminated speaker type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.