Loudspeaker frequency distribution and adjusting circuit
US6775385B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Sep 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio frequency distribution and adjusting circuit includes a variable resistor network having a first variable resistance and a second variable resistance coupled in series between a first resistor network terminal and a second resistor network terminal. The variable resistor network also includes a wiper contact with the first variable resistance and the second variable resistance for adjusting the total resistance between the resistive network terminals. The variable resistor network terminals are coupled in parallel with a low-pass filter, which is coupled to a low-frequency driver. The resistor network wiper contact is electrically coupled to the input of the high-pass filter, which is coupled to a high-frequency driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.