Missle detection and location
First Claim
1. A system for detecting and locating a missile embedded in a target, comprising:
- a target having a front face, said front face having a plurality of target areas formed of a first material into which first material one or more of the missiles may be selectively embedded from the front face of the target;
a first electrically conductive area in each of the target areas and adjacent said front face;
a back on said target opposite said front face;
a second electrically conductive area adjacent said back, said second electrically conductive area being spaced substantially equidistantly, from said first electrically conductive area in substantially each of said target areas, and electrically separated from said first electrically conductive area;
signal generating means for imparting a signal to one of said conductive areas whereby said one of said conductive areas defines a transmitting antenna for an electromagnetic signal corresponding to the signal imparted to said one of said conductive areas, and the other of said conductive areas defines a receiving antenna for the electromagnetic signal which is transmitted from the transmitting antenna; and
processing means electrically connected to the other of said conductive areas, said processing means distinguishing between a first of said electromagnetic signals which is received and sensed by the other of said conductive areas in the absence of a missile in a given target area, and a second electromagnetic signal which second signal is an alteration of said first electromagnetic signal by the presence of a missile in said given target area to permit the detection of the presence and location of the missile.
2 Assignments
0 Petitions
Accused Products
Abstract
A system is disclosed for detecting and locating missiles such as darts in a target having a plurality of discrete target areas in which each of the areas has a conductive surface which acts as an electromagnetic signal receiving antenna, and in which a plate is positioned on the back of the target which functions as an electromagnetic signal transmitting antenna. Each of the target areas are monitored for electromagnetic signals and the signals pass through a pin conductor to the monitoring equipment. When a dart is embedded in one of the areas, it also acts as an antenna and, thereby, increases the signal strength of that area to permit detection of the presence and location of the dart. The pin conductors and plate antenna at the back of the dart board substantially improve the discrimination and reliability of the system.
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Citations
23 Claims
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1. A system for detecting and locating a missile embedded in a target, comprising:
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a target having a front face, said front face having a plurality of target areas formed of a first material into which first material one or more of the missiles may be selectively embedded from the front face of the target; a first electrically conductive area in each of the target areas and adjacent said front face; a back on said target opposite said front face; a second electrically conductive area adjacent said back, said second electrically conductive area being spaced substantially equidistantly, from said first electrically conductive area in substantially each of said target areas, and electrically separated from said first electrically conductive area; signal generating means for imparting a signal to one of said conductive areas whereby said one of said conductive areas defines a transmitting antenna for an electromagnetic signal corresponding to the signal imparted to said one of said conductive areas, and the other of said conductive areas defines a receiving antenna for the electromagnetic signal which is transmitted from the transmitting antenna; and processing means electrically connected to the other of said conductive areas, said processing means distinguishing between a first of said electromagnetic signals which is received and sensed by the other of said conductive areas in the absence of a missile in a given target area, and a second electromagnetic signal which second signal is an alteration of said first electromagnetic signal by the presence of a missile in said given target area to permit the detection of the presence and location of the missile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification