Radio command device
US7034899B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | May 4, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5458
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A control unit (10) superimposes command signals on AC power passing on a power line or network (40). A command unit (20) controls and powers an electrical load (50) such as a motor M. A command processor (26) receives radio frequency control signals at a first input (24) from an antenna (12) and a receiver/demodulator (22) and receives command signals from the power line at a second input (25) connected with a pulse shaping circuit (23). In a first, normal operating mode, the command processor controls the electrical load in accordance with signals received at the radio frequency input. In a second, special mode initiated power line command signals, the command processor at least temporarily blocks the execution of commands received at the radio frequency input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.