Signal loss detector for high-speed serial interface of a programmable logic device
US7996749B2 · kind B2 · utility
409Cited by
3References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 3, 2007 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Apr 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/45
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A loss-of-signal detector includes digital and analog monitoring of incoming data. The incoming signal is compared digitally to at least one predetermined pattern that may indicate a loss of signal, and also is monitored by an analog detector that detects transitions in the data. If the digital comparison fails to match any of the at least one predetermined pattern, or if transitions are detected by the analog monitoring, even if the digital comparison produces a pattern match, then loss of signal is not indicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.