Line impedance calibration using actual impedance determination
US6459277B1 · kind B1 · utility
1Cited by
15References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Dec 1, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03885
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An approach for impedance matching a transmission line includes using the actual line impedance. According to one example embodiment, the impedance of a line connecting first and second nodes is calibrated by first driving the line to a steady-state voltage using a first current having a magnitude greater than zero, driving the current to a zero magnitude from the first node and therein inducing a voltage transient. The resultant voltage level on the line at the first node is then measured and analyzed relative to a reference voltage. The result of the comparison is then used to adjust the conductance at the second node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.