Apparatus and method for communication link having parallel signal detect with hysteresis
US6639438B2 · kind B2 · utility
1Cited by
1References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Feb 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is described that involves directing a signal through a hysteresis comparator. Then, determining if an output signal of the hysteresis comparator, in response to the signal, is an AC signal or a DC signal. Then, deactivating a signal reception unit that receives the signal if the hysteresis comparator output signal corresponds to a DC signal; or, activating the signal reception unit if the hysteresis comparator output signal corresponds to an AC signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.