Control of emissions by devices in sensitive environments
US6603397B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A control device controls undesirable emissions from devices in an environment by transmitting signals to devices in the environment. The signals can be either control signals that require the devices in the environment to operate at a reduced functionality, or warning signals indicating an acceptable level of functionality for the devices. The levels of functionality for the devices are chosen to correspond to desired emission levels by the devices in the environment. The control device utilizes a transmitting device to transmit the signals to devices in the environment, and can include sensors to detect conditions within the environment. Another embodiment of the invention uses a control device as a relay for communication signals between devices within the environment and signal sources outside of the environment. In serving as a relay for communications signals, the control device maintains and controls the communication signals, and the control device can also include control signals and warning signals within the communications to the devices in the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.