| HOWARD UNIVERSITY Patent applications |
| Patent application number | Title | Published |
|---|
| 20120086459 | Apparatus and Method for Fault Detection and Location Determination - An electrical waveform is received over an electrical power line. A plurality of nominal electrical parameters are determined for the electrical power network and the plurality of nominal electrical parameters are associated with a state of the electrical power network in the absence of at least one transitory electrical fault in the network. Subsequently, a plurality of electrical parameters of the electrical waveform are sampled when the at least one transitory electrical fault exists in the network. A plurality of inductances are determined based at least in part upon a comparison of the nominal electrical parameters and the plurality of sampled electrical parameters. The plurality of inductances are representative of inductances present in the network when the at least one transitory electrical fault exists in the network. The plurality of inductances are analyzed to determine a distance and/or direction to the at least one electrical fault. | 04-12-2012 |
| 20120062317 | Nanothermocouple Detector Based on Thermoelectric Nanowires - A nanothermocouple detector includes a nanowire coupled across two electrodes. The two electrodes are electrically connected to an amplifier. The two electrodes generally have a separation of about five micrometers to about thirty micrometers across which the nanowire is coupled. A focusing element is disposed to admit photons that fall on the focusing element onto the nanowire to heat it. A voltage change across the nanowire caused by the heating of the nanowire by the light is detected by the amplifier. The voltage change corresponds to the energy absorbed from the light by the nanowire. The color of a single photon can be detected using such device. An array of such devices can be used for sensing light on a two-dimensional scale, thereby providing an image showing small variances in the energies of the light impinging upon the detector array. | 03-15-2012 |
| 20110180807 | INFRARED EXTERNAL PHOTOEMISSIVE DETECTOR - An infrared external photoemissive detector can have an n-p heterojunction comprising an n-type semiconductor layer and a p-layer; the n-layer semiconductor comprising doped silicon embedded with nanoparticles forming Schottky barriers; and the p-layer is a p-type diamond film. The nanoparticles can be about 20-30 atomic percentage metal particles (such as silver) having an average particle size of about 5-10 nm. The p-layer can have a surface layer that has a negative electron affinity. The n-layer can be in the range of about 3 μm to 10 μm thick, and preferably about 3 μm thick. The doped silicon can be doped with elements selected from the list consisting of phosphorus and antimony. | 07-28-2011 |
| 20110167225 | MULTIPLE-MEMORY APPLICATION-SPECIFIC DIGITAL SIGNAL PROCESSOR - An integrated circuit device is provided comprising a circuit board and one or more digital signal processors implemented thereon. The digital signal processor comprises a data unit comprising a function core configured to perform a specific mathematical expression in order to perform at least a portion of a specific application and an instruction memory storing one or more instructions configured to send commands to the control unit and the data unit to perform the specific application, and a control unit configured to control the flow of data between a plurality of memory banks and the function core for performing the specific application, and the plurality of memory banks coupled to each of the one or more digital signal processors and comprising at least two or more local memory banks integrated onto the circuit board. | 07-07-2011 |
| 20100111521 | System and Method of Detecting and Locating Intermittent and Other Faults - A signal is conducted from a controller module onto a network via a first coupling. The signal is transmitted across the network and received at one or more receiver modules via one or more second couplings. At the one or more receiver modules, the received signal is analyzed and based upon the analysis, a determination is made as to whether a fault has occurred in the network and/or where the occurrence occurred. | 05-06-2010 |
| 20100110900 | System and Method of Detecting and Locating Intermittent Electrical Faults in Electrical Systems - Signals are transmitted from at least one transmitter that is positioned in an electrical network. The signals that have been transmitted are received by the at least one single receiver at a single receiver positioned within the electrical network. At the single receiver, the received signals are analyzed and a determination from the analyzing the received signals is made as to whether a fault has occurred in the electrical network. | 05-06-2010 |
| 20100110618 | Housing Arrangement For Fault Determination Apparatus And Method For Installing The Same - A fault determination apparatus includes a housing. The housing includes a circuit board disposed there within. The housing is shaped and dimensioned for non-intrusive placement within an existing electrical system. The circuit board is configured to provide one of a transmitter or a receiver within a fault determination system. A first set of connectors is disposed at a first side of the housing and a second set of connectors disposed at the second end of the housing. The first set of connectors and the second set of connectors are directly connected through the wires provided inside the apparatus while at least one wires under fault monitoring are tapped to the circuit board and configured so as to be electrically coupled to the existing electrical system. | 05-06-2010 |
