Optical detection and location of gunfire

Details Optical detection and location of gunfire Optical detection and location of gunfire

2004-11-26

2008-08-12

Johnson, Stephen M (Department: 3641)

Ordnance

Waging war

C089S041060, C089S041080

Reexamination Certificate

active

07409899

ABSTRACT:
Disclosed is an optical gunfire detection system comprising an image-capturing device operable for detecting light; a narrowband Fraunhofer line filter connected to the image-capturing device, and operable for partially restricting transmission of the light; a convex parabolic reflector operable for transmitting images to the image-capturing device; a lens system; an image storage device connected to the image-capturing device, wherein the image storage device comprises a solid-state digital memory unit operable to store multiple seconds of video imagery; a real-time computer-implemented mechanism connected to the image storage device, the computer-implemented mechanism operable for detecting locations and classifications of gunfire associated with the images; an acoustic device in communication with the computer-implemented mechanism, and operable for verifying the classifications of the gunfire; a position laser operable for identifying the locations of the gunfire; and a defense mechanism comprising the laser pointer and operable to defend against a source of the gunfire.

REFERENCES:
patent: 3936822 (1976-02-01), Hirschberg
patent: 5686889 (1997-11-01), Hillis
patent: 5970024 (1999-10-01), Smith
patent: 5973998 (1999-10-01), Showen et al.
patent: 6215731 (2001-04-01), Smith
patent: 6496593 (2002-12-01), Krone, Jr. et al.
patent: 6621764 (2003-09-01), Smith
patent: 7233546 (2007-06-01), Berkovich et al.

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