Self-calibrating writer
US7728618B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2007 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Jan 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0278
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In accordance with the invention, a method, system and apparatus are presented that matches the output impedance of a driver to the impedance of a transmission line. A method for matching the impedance between a driver and a transmission line, wherein the transmission line is between the driver and a load can include transmitting a first pulse from the driver to the load through the transmission line, wherein a first reflection from the transmitted first pulse occurs after a first time, measuring a second reflection from the transmitted first pulse after a second time, and adjusting the calibration of the driver in response to the measured second reflection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.