Location-sensitive remote database access control
Patent 5243652 Issued on September 7, 1993. Estimated Expiration Date: 
September 30, 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.
September 30, 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 ReferencesSatellite communication system and method with message authentication suitable for use in financial institutions Secure satellite over-the-air rekeying method and system Patent #: 4993067 InventorsAssigneeApplicationNo. 954624 filed on 09/30/1992US Classes:380/250, Usage pattern detection380/258, Position dependent or authenticating380/279Key distribution centerExaminersPrimary: Cangialosi, SalvatoreAttorney, Agent or FirmInternational ClassH04K 009/00AbstractA communication system includes a remote mobile node which acquires time-correlated data of its actual position from a global positional system (GPS), and securely transmits the information as a position history to a central facility. The mobile node includes encrypted programming material such as copyrighted video. At the central facility, a comparison is made between the received position history and predetermined signature data representing acceptable time-position histories. If a positive match is detected, a decryption key associated with the matched history is forwarded to the mobile node for decoding of the encrypted programming material. | |
