High resolution localization for indoor environments
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 28, 2006
app pub date -
Mar 23, 2005
filing date -
Mar 23, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention relates to locating a person who is operating a wireless communications device in an indoor environment. In particular, it relates to processing various combinations of RSSI, direction of arrival and flight time characteristics of a signal, as received at two or more and preferably three or more access points. In one embodiment, the access points implement a wireless LAN (WLAN) and the communications device is a telephone operating over the WLAN. In another embodiment, the localization of a wireless device allows a system to reject users who are outside a predefined physical area.
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Family
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