Cost-effective friend-or-foe (IFF) combat infrared alert and identification system (CID)
First Claim
1. An identification friend or foe system for military small arms to determine whether a target that has been selected is a friendly target comprising:
- a signal source attached to a friendly target and arranged to radiate encrypted signals, a detection system attached to the weapon, wherein the improvement comprises;
an optical-electronic interrogator attached to a small arm comprising an optical transmitter mounted on a sight of said small arm, which sends encrypted infrared laser beam on said friendly target, an optical receiver receiving encrypted infrared response signal emitted by said target when it has been activated by said laser beam sent by said interrogator, and a visual alarm sign mounted on the sight of said small arm activated by said received response signal, an optical-electronic transponder attached to said target, which contains one or more optical receivers receiving encrypted infrared optical signal emitted by said interrogator, wherein this received signal activates said transponder that, being activated, transmits the encrypted infrared response signal back to said interrogator.
1 Assignment
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Accused Products
Abstract
A compact and cost-effective infrared IFF alert system for small arm based on fiber-optical (FO) technology, comprising an optical interrogator and an optical transponder, is provided. The interrogator attached to a small arm, such as a rifle, includes a FO laser diode and FO receiver, which are connected to FO graded-index lens attached to sight of the small arm via a single-mode optic fiber, an electronic unit positioned in any convenient place of the small arm, and an alarm LED attached to the sight together with the lens. The transponder, which “a friendly target”—a soldier—is equipped with, contains a set of transmitter-receiver unit and an electronic unit that are mounted on a harness attached to soldier'"'"'s helmet. This IFF system, when a friendly soldier is targeted, starts visual alarm signal for the shooter and sound signal for the “friendly target” so preventing “friendly fire”.
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Citations
7 Claims
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1. An identification friend or foe system for military small arms to determine whether a target that has been selected is a friendly target comprising:
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a signal source attached to a friendly target and arranged to radiate encrypted signals, a detection system attached to the weapon, wherein the improvement comprises;
an optical-electronic interrogator attached to a small arm comprising an optical transmitter mounted on a sight of said small arm, which sends encrypted infrared laser beam on said friendly target, an optical receiver receiving encrypted infrared response signal emitted by said target when it has been activated by said laser beam sent by said interrogator, and a visual alarm sign mounted on the sight of said small arm activated by said received response signal, an optical-electronic transponder attached to said target, which contains one or more optical receivers receiving encrypted infrared optical signal emitted by said interrogator, wherein this received signal activates said transponder that, being activated, transmits the encrypted infrared response signal back to said interrogator. - View Dependent Claims (2, 3, 4, 6)
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5. A combat identification system (CID) comprising:
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an optical interrogator attached to a field observation device, such as a binocular or night vision system, which contains an optical transmitter and an optical receiver, wherein said interrogator sends an encrypted infrared laser beam on identified by said field observation device target, such as a soldier, and, when it is friendly one, receives infrared optical response signal carrying said friendly target individual information, an optical transponder attached to said friendly target, which contains an optical transmitter and an optical receiver, wherein said unit receives encrypted infra-red optical emitted by said interrogator that activates said transponder which, being activated, emits the encrypted infra-red optical response signal carrying friendly target individual information back to said interrogator, a display combined with said field observation device in such a way that said information appears in the field of view of said field observation device. - View Dependent Claims (7)
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Specification