Abstract: A laser detection system including at least one laser device projecting a light curtain, and a controller is provided. The controller includes a processor and non-transitory, processor-readable memory including executable instructions that, when executed by the processor, cause the controller to receive a signal from the at least one laser device, the signal including an interference point of an object with the light curtain, and distance data indicating a distance between the interference point and the at least one laser device, determine a location at which the object enters the light curtain based on the distance between the interference point and the at least one laser device, and identify an item of a plurality of items located in an area behind the light curtain and corresponding to the location at which the object enters the light curtain.

Abstract: A laser detection system including at least one laser device projecting a light curtain, and a controller is provided. The controller includes a processor and non-transitory, processor-readable memory including executable instructions that, when executed by the processor, cause the controller to receive a signal from the at least one laser device, the signal including an interference point of an object with the light curtain, and distance data indicating a distance between the interference point and the at least one laser device, determine a location at which the object enters the light curtain based on the distance between the interference point and the at least one laser device, and identify an item of a plurality of items located in an area behind the light curtain and corresponding to the location at which the object enters the light curtain.

Abstract: A technique is described for increasing the capacitance of a metallized polymer film capacitor where the capacitor electrodes have been fabricated with so-called patterned film. The pattern as typically embodied by prior art allows the capacitor to better survive dielectric failures, or exhibit improved tolerance to extreme pulse current. The pattern is created by areas on the capacitor electrodes which have no metal, so there will be a capacitance reduction penalty for using said patterned electrodes. Each section of the pattern is connected by a local fuse, which is disconnected from the rest of the capacitor when the current flowing through a defect vaporizes the surrounding metal. An extremely light metallization underlayer is described which allows the better survival characteristic provided by pattern film should a dielectric failure occur, yet mitigates the capacitance loss previously seen for capacitors made with conventional patterned metallized electrodes on the capacitor film.

Abstract: Parallel plate bus structures are commonly used for high-current applications where low inductance is a requirement. Such bus structures are very well suited for inverter topologies used to convert from DC to AC power and a capacitor is needed to minimize ripple on the DC bus. The present invention provides a method of integrating an annular form factor wound film capacitor into a parallel bus structure to provide a compact geometry with minimal inductance. Furthermore, the capacitor acts as the dielectric spacer between the bus plates, which eliminates the need for separate capacitor terminals and provides the lowest possible profile.

Abstract: Parallel plate bus structures are commonly used for high-current applications where low inductance is a requirement. Such bus structures are very well suited for inverter topologies used to convert from DC to AC power and a capacitor is needed to minimize ripple on the DC bus. However, such arrangements are not able to provide sufficiently low inductance to easily eliminate bypass capacitors which typically requires a system inductance below 10 nH nor do they provide any natural EMI suppression. The present invention utilizes that natural circular symmetry of a circular film capacitor winding by implementing a coaxial shaped bus connection from the capacitor to the switching semiconductors in the DC bus application of DC to AC inverter. The result is an achievement of lower ESL and geometry based EMI suppression without the use of external-lumped filtering components.

Abstract: A system to signal proximity of at least one object or entity comprises reference means, sensing means for sensing the at least one object or entity in an electric field, and processing means for detecting at least one capacitive change in at least a portion of the electric field. The sensing means is configured to at least partially form the electric field with at least a portion of the reference means. Also provided is a sensing device comprising at least one electrically conductive unit, at least one reference, and an electrical circuit coupled to at least one processor. At least one of the electric circuit and the at least one processor is configured to cause the at least one electrically conductive unit and the at least one reference to form a capacitive relationship, and detect a capacitive change in at least a portion of the electrical field.

Abstract: In a method and system for controlling a revolving door that has a plurality of chambers defined by wings of a revolver, at least one imaging sensor is provided for acquiring images of a first area where the plurality of chambers rotatably pass by or through. A drive causes the revolver to rotate in a first direction from a first position where a user can enter a first chamber via the first opening. Images are acquired by the one imaging sensor and signals are acquired from a position sensor that is operative for outputting signals indicative of the angular position of the revolver. Based on the signals acquired from the position sensor, each imaging sensor or its output is disabled and/or each image acquired by each imaging sensor is ignored when each door wing is in field-of-view of the imaging sensor.