Fast detection/mitigation and recovery for severe EMI conditions in automotive area networks
US9154265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2014 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Sep 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03057
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A vehicle communication network device includes a transceiver configured to communicatively couple with a remote transceiver of another vehicle communication network device via a wired media and processing circuitry coupled to the transceiver. The device detects interference on the wired media that exceeds an interference threshold level. Upon the detection, the device enters a quiet mode during which no data is transmitted on the wired media. After exiting the quiet mode, the device enters an idle mode during which known data is transmitted on the wired media and during which the device receives known data from the remote transceiver. The device retrains its transceiver based upon the known data and after retraining the transceiver, exchanges data with the remote transceiver. The device may also buffer data for transmission, upon the detection, determine buffered data that was likely corrupted by the interference, and after retraining, retransmit the determined buffered data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.