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:
Nov. 29, 2011
Filed:
Nov. 14, 2008
Christopher E. Hillman, Thousand Oaks, CA (US);
Jeffrey F. DE Natale, Thousand Oaks, CA (US);
Jonathan B. Hacker, Thousand Oaks, CA (US);
J. Aiden Higgins, Westlake Village, CA (US);
Paul H. Kobrin, Newbury Park, CA (US);
Christopher E. Hillman, Thousand Oaks, CA (US);
Jeffrey F. De Natale, Thousand Oaks, CA (US);
Jonathan B. Hacker, Thousand Oaks, CA (US);
J. Aiden Higgins, Westlake Village, CA (US);
Paul H. Kobrin, Newbury Park, CA (US);
Teledyne Scientific & Imaging, LLC, Thousand Oaks, CA (US);
Abstract
A vanadium dioxide front-end advanced shutter device. The electronic shutter device is designed to protect receiver front-ends and other sensitive circuits from HPM pulse events such as HPM weapons, directed energy weapons, or EMPs. The shutter incorporates a transition material such as thin-film vanadium oxide (VOX) materials that exhibit a dramatic change in resistivity as their temperature is varied over a narrow range near a known critical temperature. A high-energy pulse causes ohmic heating in the shutter device, resulting in a state change in the VOX material when the critical temperature is exceeded. During the state change the VOX material transitions from an insulating state (high resistance) to a reflective state (low resistance). In the insulating state, the shutter device transmits the majority of the signal. In the reflective state, most of the signal is reflected and prevented from passing into electronics on the output side of the shutter device.