Wireless switch detection system
US6025783A · kind A · utility
86Cited by
11References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Apr 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/168
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless switch detection system (10, 100) includes central transmitter (22, 109) for transmitting a transmitter signal. The system (10, 110) also includes a remote switch (28, 128) spaced apart from the central transmitter (22, 109) and having at least two states. A tag circuit (32, 136) is responsive to and powered by the transmitter signal. The tag circuit (32, 136) detects the state of the remote switch (28, 128) and, in response to the transmitter signal, provides a tag signal indicative of the state of the switch (28, 128). A central receiver (26, 111) receives the tag signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.