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:
Apr. 18, 1995
Filed:
Mar. 21, 1994
Hugh B Sanderford, Jr, New Orleans, LA (US);
Sanconix, Inc., New Orleans, LA (US);
Abstract
A system for preventing unauthorized access to the programming and control features of a fire/security/control systems remote sensors. The exemplary embodiment of the present invention utilizes an association of transmitter identity/address with a central processor/control fire/security data base, which in turn is configured to securely program each transmitter with its location and function, or 'personality'. The various, individual sensors and central processor/control unit communicate individually via individual, repeatable pseudo randomization algorithms, producing a several bit result. The communicating central processor/control and each sensor must have a match on outgoing/incoming code before the transmitting sensor will accept the programming on its personality. The exemplary embodiment of the present invention also utilizes a randomization seed, which can altered occasionally, to further increase security.