Vehicle entertainment system having ground noise reduction and method of operating the same
US8259952B2 · kind B2 · utility
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5References
9Claims
0Family size
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Key dates
| Filing date | Feb 22, 2010 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Nov 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B15/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A vehicle entertainment system and method that alternately configures an input of the entertainment system as a differential input that is decoupled from a ground point, or as ground referenced input that is coupled to a ground point. A noise detector determines a noise signal value for a ground switch module that alternately changes a switch state between a coupled state that couples the common connection to the ground point, and a decoupled state that decouples the common connection from the ground point, based upon the noise signal value being greater than a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.