Abstract: In one aspect, a method to assign observations includes receiving first observations of a first sensor system, receiving second observations of a second sensor system and assigning a set of pairs of the first and second observations predicted to correspond to the same physical position. The assigning includes using a likelihood function that specifies a likelihood for each assigned pair. The likelihood is dependent on the assignment of any other assigned pairs in the set of assigned pairs. The assigning also includes determining the set of assigned pairs for the first and second observations based on the likelihood function. The likelihood function uses a gate value determined from estimating a true volume using nearest neighbor distances determined from the first and second observations.

Abstract: A Hall effect element includes a Hall plate with an outer perimeter. The outer perimeter includes four corner regions, each tangential to two sides of a square outer boundary associated with the Hall plate, and each extending along two sides of the square outer boundary by a corner extent. The outer perimeter also includes four indented regions. Each one of the four indented regions deviates inward toward a center of the Hall plate. The Hall plate further includes a square core region centered with and smaller than the square outer boundary. A portion of each one of the four indented regions is tangential to a respective side of the square core region. Each side of the square core region has a length greater than twice the corner extent and less than a length of each side of the square outer boundary.

Abstract: A motion control device for controlling a motor is presented. The motion control device is operable to scale or adjust an input relative to an input range that is based on calibration values and to use that scaled input to produce a drive signal to drive the motor. The motion control device performs a self-calibration to produce the calibration values. The self-calibration involves measuring home position and full travel position values for the motor.

Abstract: Systems and methods are provided for disabling a device in an enterprise storage system. In one embodiment, a method comprises receiving information identifying a device in a storage area network that is scheduled for an outage. The method further determines one or more paths impacted by the outage of the device, generates a notification identifying the determined one or more paths, and transmits the notification to one or more hosts having paths to the device.

Abstract: The invention provides a current sensor that may be folded over a conductor without the need to sever the conductor or thread the conductor through the current sensor. In one embodiment, the current sensor includes an outer body having a first folding portion and a second folding portion coupled to the first folding portion. The current sensor also includes a soft ferromagnetic body disposed within the outer body comprising a first core element and a second core element. The first and second core elements form a lumen when the first and second folding portions are folded. The lumen is configured to receive a conductor. The current sensor also includes a magnetic field detector to sense a current in the conductor. The magnetic field detector is disposed at least partially between the first and second core elements when the first and second folding portions are folded.

Abstract: Method and apparatus for detecting viruses in a continuous data protection system using by scanning journal data. In an exemplary embodiment, a system stores journal data, receiving a virus signature update containing a first new virus signature, scanning the journal data for the first new virus signature, and identifying a data block containing the first new virus signature for a first virus.

Abstract: Disclosed is a surface plasmon resonance sensor having a rotating mirror, including (a) an incident light source unit for oscillating a laser as incident light; (b) a polarizer for polarizing the incident light; (c) a rotating mirror having cylindrical or planar shapes for reflecting the polarized incident light to radiate disk-shaped light; (d) a light shielding film for allowing part of the disk-shaped light to pass therethrough and located adjacent to the central axis of the rotating mirror; (e) a cylinder lens for focusing the light passed through the light shielding film thereon; (f) a metal thin film for receiving the light focused on the cylinder lens to generate surface plasmon resonance; (g) a dielectric medium provided under the metal thin film; and (h) a detector for detecting the light reflected from the metal thin film.

Abstract: A rocket propelled grenade (RPG) simulation device usable with a laser detector is provided. The RPG simulation device comprises a laser transmitter, a switch, a controller, and a housing. The laser transmitter is capable of directing a laser signal to the laser detector, the laser signal comprising information readable by the laser detector, to simulate a launch of a rocket propelled grenade from the RPG simulation device to the laser detector. The switch permits a user to trigger a laser signal from the laser transmitter. The controller is in operable communication with the laser transmitter and the switch, and the controller is operable to respond to triggering of the switch and to simulate the launch of a rocket propelled grenade by directing the laser transmitter to generate and transmit a laser signal.

Abstract: A selectable local oscillator provides an output frequency signal having a selectable frequency within a desired output frequency range. The selectable local oscillator comprises first, second and third signal generators configured to provide first, second and third frequency signals having frequencies in first, second and third input frequency ranges. A first mixer provides a first mixed product signal having an upper sideband and a lower sideband. A frequency selector selects one of the upper and lower sidebands of the first mixed product signal. A second mixer provides a second mixed product signal having an upper sideband and a lower sideband. An output stage selects at least one of the upper and lower sidebands of the second mixed product signal as the output frequency signal.

Abstract: A method for providing a controlled force to a dynamic system includes applying a force to a first actuator, transmitting the force from the first actuator to a second actuator through a closed fluid path containing a captured volume of fluid, and providing, via the second actuator, a controlled force to the dynamic system.

Abstract: In one embodiment, an explosive device (IED) simulator usable with a laser detector is provided, the IED simulator comprising a laser transmitter and a first switch. The laser transmitter is capable of directing a laser signal to the laser detector, the laser signal comprising information readable by the laser detector, wherein the laser signal is designed to simulate at least a first type of explosion of an IED. The first switch is operably coupled to the laser transmitter, the first switch permitting a user to trigger the laser signal from the laser transmitter. The first type of explosion that is simulated can comprise at least one type selected from the group consisting of an indoor IED explosion, an outdoor IED explosion, a long range IED explosion, an IED explosion of 2 m to 5 m away from a target, an IED explosion of up to 600 m from a target, and an IED explosion having a predetermined kill pattern.

Abstract: Magnetic field sensors have a magnetic field sensing element and also a feedback circuit to provide a gain-adjustment signal to affect a sensitivity associated with the magnetic field sensing element. In some arrangements, the feedback circuit can include piezoresistors to sense a strain of a substrate over which the magnetic field sensor is disposed. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed strain. In other arrangements, the feedback circuit can generate pulsed magnetic fields proximate to the magnetic field sensing element in order to directly measure the sensitivity of the magnetic field sensing element. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed sensitivity.

Abstract: In an apparatus for transferring a substrate, a partition wall is disposed in a vertical direction in a housing to divide an interior space of the housing into a first space and a second space. A pressure generating member divides the first space into an upper space and a lower space and moves in a vertical direction in the first space such that a positive pressure and a negative pressure are alternately generated in the upper space and the lower space. A substrate supporting member is movably disposed in the second space to support and to transfer the substrate. A plurality of gates is disposed on a side wall of the housing and the partition wall, and is opened and closed by the positive pressure and the negative pressure such that the particles are eliminated from the second space to an exterior space via the first space.

Abstract: A resonant circuit includes a feedback path for a feedback signal extending from a load terminal to an input terminal so that a potential of the load substantially tracks a potential of the input terminals. A resonant circuit extends from a load to a line terminal so that a potential of the load substantially tracks a potential of the line terminals. A resonant circuit includes a split inductor so that when the load increases so does the equivalent resonant inductance.

Abstract: A sensor having a signal generation module including a first magnetic sensor, an analog signal processing module, and a signal inversion module for inverting a first waveform and a second waveform, wherein the signal inversion module outputs the first and second waveforms in a first region spanning a first range of angular position of the magnet and outputs the first and second inverted waveforms in a second region spanning a second range of angular position of the magnet.

Abstract: Methods and apparatus for a continuous data protection system including replication and journaling, to detect a first problem, react to the first problem, recover from the first problem, determine whether to enter a regulation state due to repetition of the first problem, enter the regulation state, and maintain the regulation state after detecting the first problem again.

Abstract: A system and method for decentralized cooperative control of a team of agents for geographic and other search tasks. The approach is behavior-based and uses probability particle approach to the search problem. Agents are attracted to probability distributions in the form of virtual particles of probability that represent hypotheses about the existence of objects of interest in a geographic area or a data-space. Reliance on dependable, high-bandwidth communication is reduced by modeling the movements of other team members and the objects of interest between periodic update messages.

Abstract: Methods and systems are disclosed that enable data migration from a source logical volume to a target logical volume in signal communication with the source logical volume with minimal disruption to the accessibility of that data. The coherency of data on the source logical volume and the target logical volume is confirmed. A first pseudoname is unmapped from a source logical volume identifier, and a second pseudoname is unmapped from a target logical volume identifier. A logical volume identifier includes information specific to the logical volume it identifies. The first pseudoname is then mapped to the target logical volume identifier.

Abstract: Methods and apparatus for providing a sound suppressor device including a first plate, a second plate in opposition to the first plate, and a connector between the first and second plates such that the first plate, the second plate, and the connector define a sealed cavity containing a gas at a pressure, wherein the device has a resonant frequency selected to vibrate out-of-phase with respect to a noise source for suppressing noise from the noise source while the noise source and the device are immersed in a liquid.

Abstract: In one aspect, a method to generate executable instructions includes incorporating tacit knowledge into an artifact and actively linking electronically the artifact to at least one other artifact of a system. The artifact and the at least one other artifact form a meta-artifact associated with a domain. The method also includes generating the executable instructions based on the meta-artifact. The meta-artifact is configured to dynamically change over time through an iterative process.