Peripheral device receiver detection in a high noise environment
US7305038B2 · kind B2 · utility
1Cited by
25References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2002 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Jun 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/085
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A peripheral device includes a data port having high and low impedance terminations, a transmitter having a data signal generator and a receiver detector. The data signal generator is electrically coupled to the low impedance termination of the data port when in a low impedance operating mode, and to the high impedance termination when in a high impedance operating mode. The receiver detector includes a noise detector adapted to detect a presence or an absence of rail-to-rail noise at the data port when the transmitter is in the high impedance operating mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.