Personal security system
Patent 5334974 Issued on August 2, 1994. Estimated Expiration Date: 
February 6, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 6, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re32856 3568161 3683114 3848254 Emergency communication system Vehicle-emergency call system Vehicle locator system Emergency distress signal system for motor vehicles Electronic chart system Remote controlled tracking transmitter and tracking support system InventorsApplicationNo. 831901 filed on 02/06/1992US Classes:340/990, With map display340/426.18, Remote alarm340/426.19, Using GPS (i.e., location)340/426.2, Cellular340/426.28, Door or lock340/988, VEHICLE POSITION INDICATION340/995.14, Manipulation of map display or data340/995.17, Display change based on vehicle position342/457, Land vehicle location (e.g., bus, police car455/404.2, Location monitoring455/457, Location display701/300RELATIVE LOCATIONExaminersPrimary: Swarthout, Brent A.Attorney, Agent or FirmInternational ClassG08G 001/123AbstractA fully automatic personal security system which combines the advantages of worldwide LORAN-C or GPS navigation with the substantially worldwide communication capabilities of a cellular telephone or communication satellite. The security system comprises a mobile unit which communicates emergency data including position coordinates, and a central dispatch station which receives the emergency data and accurately displays all necessary emergency information superposed on a digitized map at a position corresponding to the location of the mobile unit.Field of SearchVEHICLE POSITION INDICATIONAt remote location With map display Position indication transmitted by vehicle after receipt of information from local station Position indication transmitted at periodic intervals (e.g., distance travelled) Position indication transmitted by local station to remote location Holdup For taxi Highway information (e.g., weather, speed limits, etc.) Mimic Mapping By preventing unauthorized or unintended access or use EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN'S CIRCUIT) Personal monitoring (e.g., for the ill or infirm) Responsive to sensed nonsystem condition Automatic dialing Intrusion Central office responsive to emergency call or alarm (e.g., "911", operator position display) Land vehicle location (e.g., bus, police car | |
