Series noise absorption circuit
US11283421B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Dec 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/46
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A series noise absorption circuit, comprises: a differential signal transmission cable and a matching circuit. The differential signal transmission cable is electrically connected to two signal feedlines. The differential signal transmission has a first and second transmission line, the first transmission line and the second transmission line are configured to receive a differential pair of input signals from the two signal feedlines. The matching circuit is connected in series with the second transmission line. The matching circuit is configured to receive a reflective electrical signal from a noise reflection circuit, and match an input impedance corresponding the series noise absorption circuit with a common-mode impedance corresponding the two signal feedlines. A distance between the matching circuit and the noise reflection circuit is a minimal electrical length. The minimal electrical length is associated with a real part and an imaginary part of a matching impedance of the matching circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.