Abstract: A robust, easily deployable, covert, passive intrusion detection system uses one or more E-field sensors to detect the presence of a moving individual and to provide an indication of the presence of the individual adjacent the sensor based on E-field distortion produced by the individual. Single-ended and differential E-field sensors with noise canceling and a guarding circuit provide sufficient sensitivity, with filtering from 0.5 Hz to 8.0 Hz selecting only human intruders. Either visible or invisible flashing light sources at the sensor indicate the presence of a moving individual at the sensor, thus to provide intruder location without the necessity of providing a geolocation system.

Abstract: An active armor system, which includes a first armor layer and a second armor layer. An interior space is interposed between the first and second armor layer. A third layer is also positioned preferably adjacent to and on the inner side of the first layer. This third layer is comprised of a material selected from a piezoelectric material, and electrostrictive material, and a magnetostrictive material. The third layer may also be characterized as any material capable of producing an electrical or magnetic field within the space in response to the application of mechanical force on this third layer. The application of force on the third layer as a result of the impacting of a shaped charge projectile on the first armor layer will result in the production of an electric or magnetic charge in the interior space which will disrupt the formation of the shaped charge gas jet so as to prevent the penetration of the second armor layer.

Abstract: A stylus useful for direct contact with an electronic touch pad has an elongate body and a dry, inkless ball disposed at the tip end of the body. The ball is attached within the elongate body, such that it is rotatable in all directions when the ball is placed in contact with an electronic touch pad.

Abstract: An apparatus useful in facilitating commercial transaction payments as a secured electronic payment terminal and a thin keyboard cover. The keyboard cover is adjustably attached to the electronic payment terminal so that the keyboard cover can alternatively serve to cover the keyboard or to swing away from the keyboard to provide a security panel. The keyboard cover is “active,” in that it incorporates a data communicator for transmitting or receiving data from an outside source. In one embodiment, the data communicator includes a signature pad. The keyboard cover is removable from the electronic payment terminal for maintenance and/or replacement without having to access the internals of the electronic payment terminal, including its electronic circuitry.

Abstract: An E-field sensing system is provided to detect the presence of obstacles, including wires, power lines or trip wires, as well as towers, guy wires, buildings and elevated terrain, in which a variation or tilt of the iso-potential electrostatic field adjacent the obstacle is detected. In one embodiment the bearing to the obstacle is ascertained. The result is the detection of power lines from as far away as at least 1,000 feet and unpowered wires from as far away as at least 100 feet, thus reducing pilot anxiety for low level missions as well as providing for wire strike avoidance.

Abstract: A method for determining whether a disputed electronic signature is that of a purported signator includes the steps of (a) creating in a single step an ink on paper signature and an identical electronic signature of the purported signator; (b) verifying that the ink on paper signature is consistent with known ink on paper signatures of the purported signator; and (c) comparing the disputed electronic signature with the electronic signature of the purported signature to determine whether the disputed electronic signature is that of the purported signator.

Abstract: The invention is a detection system and in one embodiment uses inexpensive, miniaturized sensors for detecting electric field (E-field) disturbances. Such sensors are easily and covertly deployable and have low power consumption. The devices may incorporate visual or audio alerts and can include communications hardware for transmitting data for further processing of the electrostatic events.

Abstract: The invention is a detection system comprising inexpensive, miniaturized sensors for detecting electric field (E-field) disturbances. Such sensors are easily and covertly deployable and have low power consumption. The devices may incorporate visual or audio alerts and can include communications hardware for transmitting data for further processing of the electrostatic events.

Abstract: A method of detecting and determining the bearing of a rocket launch or muzzle blast. First a plurality of spaced electrical field sensors is provided. Then distortions of the electrical field at each of said sensors are measured.

Abstract: A low cost diagnostic system for testing the airborne static discharge systems and the grounding systems for aircraft. The present invention is a passive electrostatic detection scheme which in one embodiment is an array of inexpensive, miniaturized sensors for measuring the detected E-field disturbances from aircraft. The measurements are taken on the runway upon arrival and indicate whether the aircraft had an appreciable accumulated charge indicating a failure of the electrostatic discharge system. The system further verifies that the ground discharge devices are properly working and any charge is dissipated upon landing. In one embodiment the measurement information is transmitted to a central location where the aircraft and the measurement data are matched and maintenance is scheduled for aircraft having high levels of electrostatic charge.

Abstract: An active armor system, which includes a first armor layer and a second armor layer. An interior space is interposed between the first and second armor layer. A third layer is also positioned preferably adjacent to and on the inner side of the first layer This third layer is comprised of a material selected from a piezoelectric material, and electrostrictive material, and a magnetostrictive material. The third layer may also be characterized as any material capable of producing an electrical or magnetic field within the space in response to the application of mechanical force on this third layer. The application of force on the third layer as a result of the impacting of a shaped charge projectile on the first armor layer will result in the production of an electric or magnetic charge in the interior space which will disrupt the formation of the shaped charge gas jet so as to prevent the penetration of the second armor layer.

Abstract: An active armor system, which includes a first armor layer and a second armor layer. An interior space is interposed between the first and second armor layer. A third layer is also positioned preferably adjacent to and on the inner side of the first layer This third layer is comprised of a material selected from a piezoelectric material, and electrostrictive material, and a magnetostrictive material. The third layer may also be characterized as any material capable of producing an electrical or magnetic field within the space in response to the application of mechanical force on this third layer. The application of force on the third layer as a result of the impacting of a shaped charge projectile on the first armor layer will result in the production of an electric or magnetic charge in the interior space which will disrupt the formation of the shaped charge gas jet so as to prevent the penetration of the second armor layer.

Abstract: A low cost diagnostic system for testing the airborne static discharge systems and the grounding systems for aircraft. The present invention is a passive electrostatic detection scheme comprising an array of inexpensive, miniaturized sensors for measuring the detected E-field disturbances from aircraft. The measurements are taken on the runway upon arrival and indicate whether the aircraft had an appreciable accumulated charge indicating a failure of the electrostatic discharge system. The system further verifies that the ground discharge devices are properly working and any charge is dissipated upon landing. In one embodiment the measurement information is transmitted to a central location where the aircraft and the measurement data are matched and maintenance is scheduled for aircraft having high levels of electrostatic charge.