Electronic animal containment system with direction of approach determination
US7918190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2007 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Jun 11, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S119/908
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electronic animal containment system with direction-of-approach determination, or direction-sensitive animal containment system. The direction-sensitive animal containment system generally contains a transmitter unit connected to a wire loop bounding a containment area and a receiver unit carried by the animal. The direction-sensitive animal containment system of the present invention generates a containment field having polarity and retains the polarity information when the containment field is sensed using a sensing coil optimized along the azimuth. The receiver unit also generates a gravity vector to determine the orientation of the receiver unit. The gravity vector is combined with the containment field vector to produce a function that automatically yields a sensing coil output that is independent of the orientation of the receiver unit. The polarity of the sensing coil output allows determination of the direction from which the receiver unit is approaching the wire loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.