Back to results
US 6,638,070 B1Granted
Laser frequency modulation tactical training system
OwnerFritz W. Healy, Himanshu N. Parikhinventors
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerFritz W. Healy, Himanshu N. Parikhinventors
Estimating the term…
A laser based tactical engagement simulation training system, and in particular a MILES type system, is characterized by an improved communication code structure for the system. The improved code word structure comprises a standard MILES code word that is modified to contain information over and above that required to be embodied in a standard MILES code word. This is accomplished by FM modulating the logic level “1” pulses of the standard MILES code word in a manner that embeds additional information in the word and enhances the system, while at the same time maintaining downward compatibility with existing MILES systems. Apparatus also is provided for encoding, transmitting, receiving, decoding and processing information embodying the improved code structure, which significantly enhances tactical engagement simulation for direct fire force-on-force training, and that yields more accurate simulation to improve tactical training results.
An improved code word structure for a laser based tactical engagement simulation training system of a type in which a standard code word for the system has a predetermined fixed duration and consists of a plurality of bits of logic levels “1” and “0” that occur at fixed intervals and at selected positions in the code word, said improved code word structure comprising a code word having the same fixed duration as the standard code word, FM modulated bits of selected frequencies in place of and in the same selected positions as would be the logic level “1” bits in the standard code word, and unmodulated bits of logic level “0” in the remaining positions.
An improved MILES code word structure, said improved MILES code word structure comprising a code word in which FM modulated pulses of selected frequencies occur in the same positions in the code word as would individual bits of logic level “1” in a standard MILES code word, and in which bits of logic level “0” occur in the same positions in the code word as would individual bits of logic level “0” in a standard MILES code word.
An improved MILES code word structure, comprising a standard MILES code word in which individual ones of the bits of logic level “1” are FM modulated to have selected frequencies and in which the remaining bits are of logic level “0”.
An improved code word structure for a laser based tactical engagement simulation training system of a type in which a standard code word for the system consists of a plurality of bits of logic level “1” in bit positions selected to convey standard required information and in which the remaining bits are of logic level “0”, and in which said logic level “1” bits are modified to contain information in addition to the standard required information, so that a single improved code word contains both the standard required information and the additional information.
Dependencies are inferred from the claim text.