Wireless induction loop control system
US6265788A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Nov 5, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01088
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wireless control system (30, 70) for distributing electrical control signals to a plurality of controlled devices (36a, 36b, 36c, 74a and 74b), including an electronic control unit (ECU) (32, 72) adapted to communicate with one or more controlled devices (36a, 36b, 36c, 74a and 74b) and an induction loop (34, 73) coupled to the ECU (32, 72) and adapted to provide a magnetic field within the range of the controlled devices (36a, 36b, 36c, 74a, and 74b). Each controlled device (36a, 36b, 36c, 74a and 74b) includes an induction coil (42a, 42b, 42c, 76a and 76b) tuned to couple signals modulated within the magnetic field of the induction loop (34, 74). The controlled devices (74a and 74b) may include a sensor (82a, 82b) and may be adapted to send a status signal (84) to the ECU (72) via the induction loop (73).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.