Method and apparatus for reducing crosstalk in an integrated headset
US9549248B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 2013 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Jul 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio system has a first channel for receiving a first input signal and driving a first speaker and a second channel for receiving a second input signal and driving a second speaker. A first feedforward circuit couples an input of the second channel circuit to an input of the first channel circuit. A second feedforward circuit couples an input of the first channel circuit to an input of the second channel circuit. Circuit parameters of the first and the second feedforward circuits are determined such that a first detected output signal is zero when the first input signal is non-zero and the second input signal is zero, and a second detected output signal is zero when the second input signal is non-zero and the first input signal is zero. The audio system is configured to operate using the determined circuit parameters for the first and the second feedforward circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.