Texas Instruments Corporation

Raytheon Company

Richard G Hoffman, Ii

Gary A Frazier

Daniel Joseph Ryan

Oren B Kesler

Charles M Rhoads

Gregory S Hawkins

An apparatus includes a transmitter portion which transmits a defined beam of eyesafe laser energy, a receiver portion which receives reflected energy from the beam, and a further portion which analyzes information in the received energy so as to detect the presence of a moving projectile.

Method and apparatus for detecting a moving projectile

An airplane (11) includes a system (10) which provides synthetic vision using a reality updated virtual image. The system includes a processor (17) which receives real-time image information regarding a scene of interest from a sensor (12), the sensor being supported on the airplane by a gimbal (13). The processor receives information regarding the orientation of the sensor from the gimbal, and receives navigational information regarding the airplane from a navigation system (14). The processor maintains virtual image information (23) regarding the scene of interest. The processor updates the virtual image information using the real-time image information, in a manner which improves the quality of the representation in the virtual image information of the scene of interest. The processor prepares combined image information (24, 31), by selectively combining information from the real-time and virtual image information.

Method and apparatus for providing synthetic vision using reality

Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. Other methods and devices are disclosed.

Controllable optical periodic surface filter

Controllable optical periodic surface filters

Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. The surface filter is used as a switchable filter in a cavity for a Q-switch.

Controllable optical periodic surface filters as a Q-switch in a

Controllable surface filter

Generally and in one form of the invention this is a periodic surface filter comprising at least one element at a surface of the filter and electronic controls to change the optical characteristics of the element. The surface filter comprising and electronically tunable electro-optic material to alter the resonant frequency of the element.

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Plano, TX, United States of America

Richard G Hoffman, Ii