Data transmission device
US6891901B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2001 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Jul 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An output signal to be transmitted via an especially two wire transmission line (A, B), which is composed of a transmission signal and a DC supply voltage, is generated by a data transmission device especially designed in the form of a SLIC circuit. Using a control circuit (5-8), which tracks the DC supply voltage on the output side of the transmission device (1-3) in such a manner that the level of the DC supply voltage does not decrease, it is possible to ensure that both the specified requirements concerning the maximally admissible DC voltage drop as well as the specified requirements concerning the reflection attenuation are met.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.