Interface circuit and method for digital signals
US6901111B2 · kind B2 · utility
1Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Aug 20, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0266
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An interface circuit (100) and method for interfacing received digital signals, relative to a first ground potential, for transmission on the bus, relative to a second ground potential. A transformer (106) passes edges of the received digital signals. A Schmitt trigger (110) reconstructs signals from the edges of signals passed by the transformer, so as to produce digital signals, for transmission on the bus, relative to the second ground potential. The Schmitt trigger bias points may be set by an oscillators incorporating another Schmitt triggers (120) located on the same semiconductor die to reduce temperature variability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.