Methods, systems, and apparatus, including computer pro grams encoded on a computer
storage medium, for receiving tracked locations from a plurality of the client devices and …

A portable communication device and method provide for determining indoor or outdoor
location of the device. The method includes measuring a signal strength of at least one of a …

(57) ABSTRACT A system and a plurality of methods for location detection are disclosed. In
some cases, the user's present location is repre sented by a circle, having a center and a …

The present invention relates generally to positioning and/or navigation algorithms and,
more particularly, to a method and system for indoor/outdoor transition determi nation for …

A determination of whether a mobile computing device is indoors or outdoors can
incorporate any of a variety of factors to make an efficient and accurate determination of …

A mobile call device (10) for use in conjunction with a Personal Emergency Response
System (PERS) includes a cellular radio (20) configured for voice communication (22) and …

Methods, systems and apparatuses for selecting which of a plurality of sensors to use for
location detection of a mobile device are disclosed. One method includes activating lowest …

In an embodiment, a user equipment (UE) tracks its location using a first positioning scheme
(PS)(eg, an indoor PS or outdoor PS) while operating inside or outside of an enclosed …

Methods, systems, and apparatus, including computer pro grams encoded on a computer
storage medium, for receiving information from a remote system comprising one or more …

(57) ABSTRACT A system and a plurality of methods for location detection are disclosed. In
some cases, the user's present location is represented by a circle, having a center and a …