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:
Jan. 18, 2011
Filed:
Mar. 07, 2005
Charles B. Stieff, Kensington, MD (US);
Charles B. Stieff, Kensington, MD (US);
Other;
Abstract
The new seal monitor uses of a time dependant pseudo random number or a number from a time pad, which are lists of random numbers often used in encryption. This number changes periodically, for example, once an hour or whatever time interval is deemed timely by the particular application. It is intended that a remote monitoring station would send a request to the monitor and the monitor would respond with the random number that dependant on the time the monitor was started and how much time has elapsed. If the random number returned is correct it infers that the monitor is operating correctly and the seal has not been tampered with. If the monitor does not respond or responds with an incorrect number then the monitor or the seal has been tampered with. Light through a cable is periodically compared with historic outputs from that cable.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile