Patent ID: 9412252
Filing Date: 2016-08-09
CPC Classification: A61B,G01P,G08B,H01H

Claim Text:
1. A system comprising: at least a sensor configured to detect a fall of a host based on a change of relative position, and/or orientation between the host body and gravity where the fall happens; at least an information handling subsystem to receive, process and respond to signals from said sensor; said sensor comprises: at least a two-non-intermixable medium, whose relative location varies depending on its orientation with respect to gravity; at least a detection system to detect relative position between said two-non-intermixable medium; said two-non-intermixable medium comprises: either a kind of liquid and a gas bubble; or two kinds of non-intermixable liquids; or a kind of liquid and a solid with density less than liquid; or a kind of gas (or even vacuum) and a solid floating in gas (or vacuum) supported by at least an external force; or a kind of liquid and a solid, which is denser than liquid, and is floating in liquid supported by at least an external force.