Location enabled device with power saving control and method thereof
US7633389B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jan 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/0202
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An energy constrained device (100) includes a motion sensor (150) operative to detect motion of the device (100); a device position determinator (130); and a controller (110) operatively coupled at the motion sensor (150) and to the device position determinator (130) and operative to receive a device location request for the energy constrained device (100), to determine whether the energy constrained device (100) has moved based on the motion sensor (150), and to determine whether to request position information from the device position determinator (130) based on device movement. A method for saving power for a device position determinator (130) in a energy constrained device (100) includes determining whether position information has been requested from the device position determinator (130); and if not so, automatically switching the device position determinator (130) to a low power consumption mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.