Passive redundant digital data receiver with dual comparator edge detection
US7136429B2 · kind B2 · utility
2Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2002 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Feb 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/069
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A passive coupling structure constructed using printed circuit board traces is used to separate the low and high frequency components of an incoming digital signal. The low and high frequency components of the signal are sent to separate receivers on an integrated circuit. The low frequency receiver may be a conventional level based receiver. The high frequency receiver is a Schmitt-trigger with hysteresis around a DC level or two comparators with separate reference voltages. The outputs of these receivers are combined to produce a receiver output that has increased reliability and noise immunity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.