V.35 network terminator
US5789943A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018585
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A V.35 compliant driver is disclosed. The driver has three operational modes: OFF, low power (approximately 1/3 full power), and full power. The driver is placed in an appropriate mode based on conditions sensed at driver outputs. More particularly, the driver turns OFF upon sensing a short circuit condition, and reverts back to a normal operating condition following cessation of the short circuit condition by transitioning through a low power mode. Innovative approaches for satisfying V.35 source impedance measurement requirements and driver termination are also disclosed. All of the components associated with the driver reside on a single integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.