The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 2004
Filed:
Oct. 27, 2000
Visweswararao Durga, Wheaton, IL (US);
Saeid Sharifian, Aurora, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Apparatus, method and system embodiments are illustrated which provide for detection and recovery of missing wireless devices in communication systems. The preferred system embodiment includes a mobile switching center, an adjunct network entity, a base station, and a mobile unit, such as a cellular telephone or a wireless personal digital assistant. The adjunct network entity, such as an intelligent network server, has a detection and recovery application for determining, when a mobile unit is missing, a recovery identification and a recovery channel for the missing mobile unit. The mobile switching center then transmits a recovery page to the mobile unit via the base station, in which the recovery page includes information specifying the recovery identification and the recovery channel. The mobile unit, upon reception of a recovery page, enters a recovery mode and transmits a recovery signal on the recovery channel, with the recovery signal including the recovery identification. In the preferred embodiment, the recovery signal also includes global positioning system information. In addition, the recovery signal may be utilized to track, locate and recover the missing mobile unit. In the preferred embodiment, the mobile unit in the recovery mode also disables access to or deletes any stored data within the mobile unit.