Abstract: A surveillance system is disclosed. In some embodiments, the surveillance system may include at least one controller adapted to control operation of first and second screening apparatus and to produce image data and screening data, to relate the image data to the screening data, and to produce relational information data from the related image data and screening data. In some embodiments, the system may include a first screening apparatus adapted to screen a subject in a subject position, a second screening apparatus adapted to screen the subject in the subject position, and a controller adapted to produce first and second screening data from the first and second screening apparatus, respectively, relate the first and second screening data, and to produce relational information data from the related first and second screening data.

Abstract: A surveillance system is disclosed. In some embodiments, the surveillance system may include at least one controller adapted to control operation of first and second screening apparatus and to produce image data and screening data, to relate the image data to the screening data, and to produce relational information data from the related image data and screening data. In some embodiments, the system may include a first screening apparatus adapted to screen a subject in a subject position, a second screening apparatus adapted to screen the subject in the subject position, and a controller adapted to produce first and second screening data from the first and second screening apparatus, respectively, relate the first and second screening data, and to produce relational information data from the related first and second screening data.

Abstract: A surveillance system is disclosed. In some embodiments, the surveillance system may include at least one controller configured to receive information data from at least one upstream information source and to control operation of at least one controllable downstream information source based, at least in part, on the information data. A surveillance method also is disclosed. In some embodiments, the method may include analyzing screening data, obtaining information data, and reanalyzing the screening data based, at least in part, on the obtained information data.

Abstract: A surveillance system may include at least one controller configured to receive information data from at least one information source and to control operation of at least one controllable subsequent information source based, at least in part, on the information data. A surveillance method may include analyzing screening data, obtaining information data, and reanalyzing the screening data based, at least in part, on the obtained information data.

Abstract: A surveillance system is disclosed. In some embodiments, the surveillance system may include at least one controller configured to receive information data from at least one upstream information source and to control operation of at least one controllable downstream information source based, at least in part, on the information data. A surveillance method also is disclosed. In some embodiments, the method may include analyzing screening data, obtaining information data, and reanalyzing the screening data based, at least in part, on the obtained information data.

Abstract: Methods for interrogating a subject with millimeter-wave electromagnetic radiation, and generating data representative of a selected feature of a subject may include serial comparative interrogating for processing. Serial processing may include first interrogating a given subject at a first time, generating a data set from the first interrogating, second interrogating the subject at a second time different than the first time, generating a data set from the second interrogating, and identifying information corresponding to a given feature of the subject from each data set. Non-serial processing may include interrogating a subject, generating a data set from the interrogating, identifying information corresponding to a first feature of the subject, and identifying information corresponding to a second feature of the subject. Processing may also include comparing the information identified, and/or rendering representations of the information identified and presenting the representations rendered.

Abstract: A surveillance method is disclosed. In some embodiments, the method may include associating, with respective identifiers, a person and one or more carried items selected by the person to be carried by the person into a controlled-access area.

Abstract: An imaging system can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, millimeter-wave electromagnetic radiation. A subject may include a person and any object or objects with the person. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to produce from the transceiver output, image data representative of an image of the subject. At least a first portion of an image signal representative of radiation received by an antenna apparatus may be used to produce first image data representative of a first image of at least a portion of the subject. Second image data representative of a second image having resolution that is different than that of the first image may be produced from at least a second portion of the image signal.

Abstract: Active millimeter-wave imaging systems can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, electromagnetic radiation. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to convert the transceiver output into image data representative of an image of the subject. The antenna apparatus may move in a partial or continuous loop around the subject, toward or away from the subject, or in an opposite direction to an associated antenna apparatus. Antenna units in the antenna apparatus may be oriented at different angular positions along an array. Antenna arrays may also be formed of a plurality of array segments, and a group of arrays may be combined to form an antenna apparatus.

Abstract: A surveillance system can include a first sensor apparatus configured to interrogate a subject, including a person and objects carried by the person, with millimeter-wave electromagnetic radiation for imaging the subject. A supplemental source provides additional information about the subject that is relatable to objects potentially carried by the person. Relational information relates the produced image signal and the subject information. The supplemental source may be a second sensor apparatus adapted to detect a given characteristic of an object potentially carried by a person in the subject position. Relational information about whether the person is carrying an object having the given characteristic may then be produced.

Abstract: An imaging system can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, millimeter-wave electromagnetic radiation. A subject may include a person and any object or objects with the person. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to produce from the transceiver output, image data representative of an image of the subject. At least a first portion of an image signal representative of radiation received by an antenna apparatus may be used to produce first image data representative of a first image of at least a portion of the subject. Second image data representative of a second image having resolution that is different than that of the first image may be produced from at least a second portion of the image signal.

Abstract: A surveillance system can include a first sensor apparatus configured to interrogate a subject, including a person and objects carried by the person, with millimeter-wave electromagnetic radiation for imaging the subject. A supplemental source provides additional information about the subject that is relatable to objects potentially carried by the person. Relational information relates the produced image signal and the subject information. The supplemental source may be a second sensor apparatus adapted to detect a given characteristic of an object potentially carried by a person in the subject position. Relational information about whether the person is carrying an object having the given characteristic may then be produced.

Abstract: An imaging system can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, millimeter-wave electromagnetic radiation. A subject may include a person and any object or objects with the person. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to produce from the transceiver output, image data representative of an image of the subject. At least a first portion of an image signal representative of radiation received by an antenna apparatus may be used to produce first image data representative of a first image of at least a portion of the subject. Second image data representative of a second image having resolution that is different than that of the first image may be produced from at least a second portion of the image signal.

Abstract: Active millimeter-wave imaging systems can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, electromagnetic radiation. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to convert the transceiver output into image data representative of an image of the subject. The antenna apparatus may move in a partial or continuous loop around the subject, toward or away from the subject, or in an opposite direction to an associated antenna apparatus. Antenna units in the antenna apparatus may be oriented at different angular positions along an array. Antenna arrays may also be formed of a plurality of array segments, and a group of arrays may be combined to form an antenna apparatus.

Abstract: Active millimeter-wave imaging systems can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, electromagnetic radiation. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to convert the transceiver output into image data representative of an image of the subject. The antenna apparatus may move in a partial or continuous loop around the subject, toward or away from the subject, or in an opposite direction to an associated antenna apparatus. Antenna units in the antenna apparatus may be oriented at different angular positions along an array. Antenna arrays may also be formed of a plurality of array segments, and a group of arrays may be combined to form an antenna apparatus.

Abstract: The present invention is a piezoelectric device fabricated on a semiconductor that also contains electronic circuitry. A cooling device is used to lower the temperature of the resonator. Electronic circuitry can provide feedback to the resonator to compensate for microphonics that occur at low temperatures. Alternatively, piezoelectric materials that can operate at high temperatures can create a high temperature frequency source.

Abstract: A distributed diagnostic system in which a plurality of local monitoring devices collect local information concerning various machines and process that information, according to redefined diagnostic parameters, for diagnostic purposes. The local information collected by the plurality of local monitoring devices is provided to a global processor that globally processes the collected information to provide updated diagnostic parameters to the local monitoring devices.

Abstract: A fiber optic sensor for magnetic bearings includes a stator 12, a rotor 14, and an optical transmit/receive fiber 50 which propagates transmit light 112 which is launched across a gap 15 between the stator and the rotor and which receives reflected light 114 that is reflected off of the rotor 14 and travels along the fiber 50 as the light 116. The gap 15 distance is determined by the change in intensity of the return light 114. The transmit/receive fiber 50 may be located radially through or longitudinally along the stator 12. The receive light 116 is detected by a photodetector 120 which provides an electrical signal to a control circuit 124 which controls electromagnetic coils 31-34 of the magnetic bearing. Alternatively, two separate fibers may be used for the transmit and receive light. Also, time or wavelength multiplexing may be employed to allow for remote optical source and detection/control of the gap 15 distance. Further, a plurality of such sensors may be used around the gap 15.

Abstract: A novel heterostructure acoustic charge transport (HACT) device is disclosed which displays both electron and hole transport. The device includes a transducer fabricated on a substrate structure that launches surface acoustic waves. An optional reflector is formed in the substrate structure at an end portion adjacent to the transducer for reflecting the surface acoustic waves. Also included is an electrode configured with the transport channel at an end thereof distal to the transducer for generating electrical signal equivalents of the propagating electrode charge. The device makes use of both the conduction band quantum well to transport electrons and the valance band quantum well to transport holes. In this manner the sampling, processing and detection frequencies of the device can be doubled.

Abstract: A monolithic integrated circuit device combines integrated heterostructure acoustic charge transport (HACT) devices and heterostructure insulated gate field effect transistor (HIGFET) devices in a single structure in which the HACT and HIGFET layers are grown in as a contiguous composite heterostructure.