摘要:
A limiter comprising of a step-up circuit with an input node and an output node for electrically stepping up an output signal at the output node from an input signal at the input node. A threshold switch circuit is connected to the step-up circuit for limiting peak voltages of the output signal from the step-up circuit.
摘要:
An antenna includes at least one dipole antenna comprising a pair of monopole antennas each monopole antenna includes an adjustable conductive element with one end electrically combined to an inductor and another end combined to an insulator. A support structure combined to the at least one dipole antenna positions one end of each monopole at an elevation higher than the other end of the monopole.
摘要:
A Faraday cage enclosure for a mobile device with a portion that aligns with a display of the mobile device simultaneously substantially attenuate EM radiation to non-damaging amplitudes and is transparent to visible light in an optical spectrum, an EMP protection circuit electrically connected between the external charging and data port and the internal charging and data port, and a passive repeater configured to EM-couple with an antenna of the mobile device and relay signals to and from the antenna of the mobile device.
摘要:
An optical sensing system for detecting objects passing through a volume of interest, wherein the sensing system has an emitter and a detector. The detector detects motion of object shadows generated as the object passes through the volume of interest between the emitter and detector. Motion detection algorithms, using computed motion vectors of the detected object, logically determine whether an object has traveled completely through the detection space, and can be used to discriminate a specific outcomes and/or impediments.
摘要:
A system suitable for determining a location of an emitter emitting a signal of interest from an unknown location has a vehicle with a location position determining apparatus to receive a location datum, so the location of the vehicle can be determined when the signal of interest is received. An antenna connected to a receiver is positioned on the vehicle to detect and receive the signal of interest at a plurality of locations. A processor having a program executing therein determines the power level of the signal of interest at each measurement location and determines the location of the emitter from the change in power level of the signal of interest between measurement locations.
摘要:
A system detects the location of an uncooperative emitter by measuring the power level in an RF signal using a grid of linear antennas. The linear antennas are arranged in an x,y axis with intersections strategically placed in areas of interest. A detector detects the power level in each of the leaky signal cables. A processor in communication with the detector identifies the cable intersection having the greatest power level and associates that intersection as the location of the uncooperative emitter.
摘要:
Heatsink has a plurality of cross-connected pathways that create areas of turbulent airflow which is useful for quickly dissipating heat in the heatsink. The cross-connected pathways can include vertically extending pathways that extend from the baseplate to the top surface of the single piece of material with an increasing volume away from the baseplate toward the top surface of the single piece of material and horizontally extending pathways are oriented in a plurality of rows where a diameter of the horizontally extending pathways increases in each row of the plurality of rows from the baseplate.
摘要:
A Faraday cage enclosure for a mobile device with a portion that aligns with a display of the mobile device simultaneously substantially attenuate EM radiation to non-damaging amplitudes and is transparent to visible light in an optical spectrum, an EMP protection circuit electrically connected between the external charging and data port and the internal charging and data port, and a passive repeater configured to EM-couple with an antenna of the mobile device and relay signals to and from the antenna of the mobile device.
摘要:
An optical sensing system for detecting objects passing through a volume of interest, wherein the sensing system has an emitter and a detector. The detector detects motion of object shadows generated as the object passes through the volume of interest between the emitter and detector. Motion detection algorithms, using computed motion vectors of the detected object, logically determine whether an object has traveled completely through the detection space, and can be used to discriminate a specific outcomes and/or impediments.
摘要:
A system includes an emitter of electromagnetic radiation combined to the object and aligned with a detector for detecting the electromagnetic radiation from the emitter. A processor in communication with the detector is calibrated to recognize a change in alignment between the electromagnetic radiation from the emitter and the detector. The processor translates the change in alignment to the amount of force applied to the object.