Method and apparatus for detecting EMI signals using a common mode sense at the differential pins of a chip
US9859928B1 · kind B1 · utility
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3References
22Claims
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Key dates
| Filing date | Sep 23, 2015 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/085
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In aspects of a common mode sense circuit for use at a chip's differential pins, a common mode sense circuit sums signals from a pair of connections comprising a twisted-pair cable differential connection. Differential connections are at an input of a chip, such as at an input to a receiver. Summed signals represent sensed common mode signals and may be further processed, such as summing the sensed common mode signals together, and supplied as a reference signal to an adaptive interference canceller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.