出典:Wikipedia
出典:『Wikipedia』 (2011/04/26 15:11 UTC 版)
Skyhook Wireless (formerly known as Quarterscope) is a Boston-based company that developed a technology for determining geographical location using Wi-Fi as the underlying reference system. Using the MAC addresses of nearby wireless access points and proprietary algorithms, Skyhook's Wi-Fi Positioning System WPS can determine the position of a mobile device within 20–30 meters. It provides service similar to GPS without GPS hardware and can also integrate with GPS-enabled devices to provide hybrid positioning. Skyhook Wireless claims that with sub-second time-to-first-fix, supposed 20–30 meter accuracy and near 100% availability indoors and in dense urban areas.