Electronic tether for portable objects
US7064669B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 27, 2004 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Oct 13, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K15/021
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system and method for issuing an alarm when the separation distance between a monitoring module associated with an object (animate or inanimate) and an alert module exceeds a preset threshold distance thereby forming a leadless electronic tether between the object and the object owner. A monitoring module comprises a portable transmitter provides a signal to an alert module comprising a receiver and a processor. The alert module is adapted to determine a separation distance between the monitoring module and the alert module based on an attribute of the signal. When the separation distance exceeds a predetermined threshold, the alert module issues an alert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.