Abstract: Examples of circuits and amplifiers include recirculation circuitry to reduce or cancel error currents produced by target bipolar junction transistors (BJTs). In an example, first recirculation circuitry is coupled to the base of a first signal-conveyance BJT and to one of the collector or the emitter of the first signal-conveyance BJT; second recirculation circuitry is coupled to the base of a second signal-conveyance BJT and to one of the collector or the emitter of the second signal-conveyance BJT; and biasing circuitry is coupled to the first and second recirculation circuitry. The recirculation circuitry may be implemented with BJTs or MOSFETs. Configurations are provided in which error current(s) are recirculated between the base and collector/emitter node of each target BJT.

Abstract: A bracket mountable on a door hinge for supporting a gun holder behind an open door. The bracket includes a docking station and an adapter. The docking station mounts to the hinge. The adapter attaches to any gun holder, such as a holster. The gun is stowed in the gun holder on the docking station until needed. When needed, the gun is withdrawn from the mounted holster. Or, the holstered gun with the adapter attached can be lifted out of the docking station to carry or relocate it. Alternately, the gun holder may be a magnet with or without a magnetically transparent holster. The magnet stays attached to the adapter, which is left in the docking station. The gun—holstered or unholstered—adheres magnetically to the bracketed magnet. When needed, the gun is pulled off the magnet and returned to a carry position.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: A user device may measure unidirectional latency of applications over asymmetric links. The user device may accurately measure application level unidirectional latency over cellular networks, without synchronizing system clocks. The user device may accurately measure the unidirectional latency in both an uplink direction and a downlink direction, without using a high-precision system clock and without synchronizing clocks between the user device and an application server.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: A multistage data sniffer instance can include a first stage that scans a given file for a set of data fields based on a configuration file for a selected format of the given file. The multistage data sniffer instance can also include a second stage that evaluates a value in each data filed in the set of data fields for the selected format to determine a validity of values in the set of data fields. The multistage data sniffer instance can further include a third stage that extracts data within the plurality of fields of the given file, aggregates the data based on a predetermined set of rules defined in the configuration file and outputs a data to a data mart database characterizing the aggregated data.

Abstract: A multistage data sniffer instance can include a first stage that scans a given file for a set of data fields based on a configuration file for a selected format of the given file. The multistage data sniffer instance can also include a second stage that evaluates a value in each data filed in the set of data fields for the selected format to determine a validity of values in the set of data fields. The multistage data sniffer instance can further include a third stage that extracts data within the plurality of fields of the given file, aggregates the data based on a predetermined set of rules defined in the configuration file and outputs a data to a data mart database characterizing the aggregated data.

Abstract: In some examples, a non-transitory machine-readable medium can include instructions executable by a processing resource to: monitor a quantity of interactions between a plurality of user interfaces with an embedded device, determine when the quantity of interactions with the embedded device exceeds a threshold, send a slow-down message to a portion of the plurality of user interfaces in response to the interactions with the embedded device exceeding the threshold, and restrict a portion of the quantity of interactions with the embedded device when the quantity of interactions continues to exceed the threshold for a quantity of time after the slow-down message was sent to the portion of the plurality of user interfaces.

Abstract: Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Abstract: A remote optical control surface indication system comprising mechanisms configured to engage heads of respective fasteners that attach an alignment indexing plate to a vehicular structure having a control surface coupled thereto. The system further comprises: a camera having a field of view that encompasses a portion of an end face of the control surface when the mechanisms are engaged with the fasteners and when the control surface is in a neutral position; a source of light that is activatable to project light that illuminates the end face of the control surface; a display screen comprising an array of pixels; and a computing system configured to process image data captured by the camera to determine a current position of a centerline of the end face of the control surface relative to a baseline position and control the display screen to display symbology indicating the current position relative to the baseline position.

Abstract: A remote optical control surface indication system comprising mechanisms configured to engage heads of respective fasteners that attach an alignment indexing plate to a vehicular structure having a control surface coupled thereto. The system further comprises: a camera having a field of view that encompasses a portion of an end face of the control surface when the mechanisms are engaged with the fasteners and when the control surface is in a neutral position; a source of light that is activatable to project light that illuminates the end face of the control surface; a display screen comprising an array of pixels; and a computing system configured to process image data captured by the camera to determine a current position of a centerline of the end face of the control surface relative to a baseline position and control the display screen to display symbology indicating the current position relative to the baseline position.

Abstract: In some examples, a non-transitory machine-readable medium can include instructions executable by a processing resource to: monitor a quantity of interactions between a plurality of user interfaces with an embedded device, determine when the quantity of interactions with the embedded device exceeds a threshold, send a slow-down message to a portion of the plurality of user interfaces in response to the interactions with the embedded device exceeding the threshold, and restrict a portion of the quantity of interactions with the embedded device when the quantity of interactions continues to exceed the threshold for a quantity of time after the slow-down message was sent to the portion of the plurality of user interfaces.

Abstract: A testing apparatus (1) for testing a location-based application on a mobile device (14). The apparatus comprises a first platform (10) having a support portion (12) for supporting at least one test mobile device (14); and a support element (20) spaced from the first platform (10). The support element (20) is configured to support a recording device (24) and permit a camera lens on the recording device (24) to view the support portion (12) of the first platform (10).

Abstract: A system includes one or more booths and an air moving system coupled to the booths. The booths may each include an enclosure, an interior space that accommodates a person, and one or more openings. The openings are such that a person in the booth can perform operations on a system or object outside the booth. The booth can be moved from one place to another relative to a floor. The air moving system cools air and moves the cooled air through the interior space of the booth.

Abstract: A remote optical control surface indication system comprising mechanisms configured to engage heads of respective fasteners that attach an alignment indexing plate to a vehicular structure having a control surface coupled thereto. The system further comprises: a camera having a field of view that encompasses a portion of an end face of the control surface when the mechanisms are engaged with the fasteners and when the control surface is in a neutral position; a source of light that is activatable to project light that illuminates the end face of the control surface; a display screen comprising an array of pixels; and a computing system configured to process image data captured by the camera to determine a current position of a centerline of the end face of the control surface relative to a baseline position and control the display screen to display symbology indicating the current position relative to the baseline position.

Abstract: A remote optical control surface indication system comprising mechanisms configured to engage heads of respective fasteners that attach an alignment indexing plate to a vehicular structure having a control surface coupled thereto. The system further comprises: a camera having a field of view that encompasses a portion of an end face of the control surface when the mechanisms are engaged with the fasteners and when the control surface is in a neutral position; a source of light that is activatable to project light that illuminates the end face of the control surface; a display screen comprising an array of pixels; and a computing system configured to process image data captured by the camera to determine a current position of a centerline of the end face of the control surface relative to a baseline position and control the display screen to display symbology indicating the current position relative to the baseline position.