Original document(24 pages)  中文版
    A personal locator system for determining the location of a locator unit. The system includes a locator device (18) in communication with both a central station (16) and a GPS satellite (14). The locator unit includes a portable housing able to be worn about the wrist of a user. A communication system is positioned within the housing for contacting the central station and include a transmitter and receiver. A GPS unit is also positioned within the housing for contacting the GPS system for determining a location of said locator device. Upon receipt of a location request of the location data, the transmitter transmits the location data to the central station for analysis. A panic button is provided for transmitting an emergency signal (26) to the central station and initiating detecting the location of the locator unit. A non-emergency call button is provided for transmitting a location request signal to the central station and in response thereto, informing a person (22) on the contact list as to the location of the locator device. The communications system utilizes one of POTS, cellular, PCS or internet communications network. A tamper detection sensor detects when said device is tampered with. A beacon generator generates an ultrasonic of radio frequency beacon signal for aiding a person in pinpointing a location of the device.
Application Number
申请号
01807215 Application Date
申请日
2001.03.12
Title 名称 Personal locatiom detection system
Publication Number
公开号
1434925 Publication Date
公开日
2003.08.06
Approval Pub. Date Granted Pub. Date
International Classification 分类号 G01S5/02;H04B7/185;H04Q7/20
Applicant(s) Name
申请人
Timothy J. Neher
Address 地址
Inventor(s) Name 发明人 Timothy J. Neher
Attorney & Agent 代理人 gu gongxia zhu dehe
More information 更  多  信  息


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