Systems and methods to adaptively mitigate electro-magnetic interference (EMI) in automotive and industrial communication systems
US9716529B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2016 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | May 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transceiver includes an equalizer, an adaptation module, an error detector, and a controller. The equalizer receives an input signal via the single twisted-pair Ethernet cable, including outputs of an analog front end of the receiver and an echo canceller, to cancel electromagnetic interference from the input signal. The adaptation module adapts parameters of one or more of i) the equalizer, ii) the analog front end, and iii) the echo canceller based on an error in an output of the equalizer due to the electromagnetic interference. The error detector detects when the error is greater than or equal to a predetermined threshold and in response sets an error indicator to indicate no error for a predetermined period of time. The controller controls adaptation of the parameters of the one or more of i) the equalizer, ii) the analog front end, and iii) the echo canceller based on the error indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.