Abstract: A representative fault-tolerant rotating electromechanical actuator comprises a permanent magnet synchronous motor with first and second windings that each comprise three phases. First and second voltage source inverters (VSI) provide output signals independently with respect to each other. The first VSI provides output signals to drive the three phases of the first winding, and the second VSI provides output signals to drive the three phases of the second winding. The three phases of the first winding are driven simultaneously with the three phases of the second winding. Control electronics monitor signals associated with the three phases of the windings and detect a fault condition within a first phase of the first winding. The control electronics command the first VSI to drive only second and third phases of the first winding while simultaneously commanding the second VSI to drive the three phases of the second winding.

Abstract: A representative fault-tolerant rotating electromechanical actuator comprises a permanent magnet synchronous motor with first and second windings that each comprise three phases. First and second voltage source inverters (VSI) provide output signals independently with respect to each other. The first VSI provides output signals to drive the three phases of the first winding, and the second VSI provides output signals to drive the three phases of the second winding. The three phases of the first winding are driven simultaneously with the three phases of the second winding. Control electronics monitor signals associated with the three phases of the windings and detect a fault condition within a first phase of the first winding. The control electronics command the first VSI to drive only second and third phases of the first winding while simultaneously commanding the second VSI to drive the three phases of the second winding.

Abstract: The present disclosure relates to a method, computing device and computer program product for visual representation of radio frequency (RF) propagation of at least radio cell on a floor plan of a building. The floor plan and the at least one radio cell are displayed on a display of the computing device. At least one density zone is defined on the floor plan via a user interface of the computing device. A RF propagation calculation strategy is selected via the user interface of the computing device. The RF propagation for the at least one radio cell is calculated by a processing unit of the computing device, based on the configuration of the radio cell, the position of the radio cell with respect to the density zone and the selected RF propagation calculation strategy. The processing unit of the computing device further adjusts the calculated RF propagation as a function of a scale of the floor plan.

Abstract: A method is described that involves calculating, by processing software program code on a computer, wireless signal coverage within a building for each of multiple floors within the building. The calculating includes accounting for outdoor signal coverage, accounting for building height, accounting for external building wall material and accounting for internal building wall material. Another method is described that involves planning, by processing software program code on a computer, node upgrades to a wireless networking service.

Abstract: A broadband communication system in which a central office is connected to a high speed network utilizes various LMDS architectures of the present invention to expand network capabilities. For example, LMDS architectures may extend the reach of the existing land line network, and reduce the cost of network expansion.

Abstract: A broadband communication system in which a central office is connected to a high speed network utilizes various LMDS architectures of the present invention to expand network capabilities. For example, LMDS architectures may extend the reach of the existing land line network, and reduce the cost of network expansion.

Abstract: A broadband communication system in which a central office is connected to a high speed network utilizes various LMDS architectures of the present invention to expand network capabilities. For example, LMDS architectures may extend the reach of the existing land line network, and reduce the cost of network expansion.