Patent 7318368 was granted and assigned to Tmc Design Corporation on January, 2008 by the United States Patent and Trademark Office.
A method and apparatus for broadcasting electromagnetic waves such that user-selected electromagnetic receivers are prevented from receiving an intended electromagnetic communication. Such device can be used to jam detonation of remote controlled explosive devices. The device can be portable or stationary, is preferably programmable, is low cost, and can be used by untrained personnel.