Abstract: A power supply device may include an insulating DC/DC converter unit including a primary winding and a secondary winding magnetically coupled to the primary winding, and inducing a voltage in the secondary winding in a first direction or a second direction, and a boosting unit. The boosting unit may comprise a first booster boosting the voltage induced in the secondary winding to supply power to a first light emitting diode module, in a first mode in which the voltage is induced in the secondary winding in the first direction, and a second booster boosting the voltage induced in the secondary winding to supply power to a second light emitting diode module, in a second mode in which the voltage is induced in the secondary winding in the second direction.

Abstract: There is provided a single stage forward-flyback converter including a power converting unit switching input power to perform a forward power conversion operation while being switched on and perform a flyback power conversion operation while being switched off, a path providing unit clamping power formed by the forward power conversion operation of the power converting unit and power formed by the flyback power conversion operation thereof to provide power transfer paths, and a controlling unit controlling the power conversion operation of the power converting unit according to a voltage level of the input power.

Abstract: The present disclosure includes switching resonant filter circuits and methods. In one embodiment, a circuit includes a plurality of resonant switching circuits arranged in a three (3) or four (4) element PI network. In one embodiment, an undesired signal frequency is applied to two resonant switching circuits and a carrier frequency of an RF signal is applied to the other two resonant switching networks so that the network attenuates the undesired signal frequency and passes the carrier frequency. In another embodiment, the resonant switching circuits are configurable to shift a peak impedance so that undesired signals may be attenuated.

Abstract: Data regarding at least one event are extracted from a data repository and subjected to a syntactic transformation into a first semantic representation if needed. Extracted and transformed data are converted into a representation with explicit semantics regarding temporal information. If the extracted data includes no explicit temporal data, temporal data are deduced from other extracted data pertaining to the event and attached to the event data. The results can be applied for temporal reasoning.

Abstract: A memory system includes a memory device and a memory controller. The memory device includes a plurality of memory cells. The memory controller is configured to continuously perform a plurality of write commands on the memory device between an active command and a precharge command. In the memory system, when after a first write operation having a last write command of the plurality of write commands is performed and then the precharge command is issued, the last write command is issued for a second write operation after the precharge command. The first write operation and the second write operation write a same data to memory cells of plurality of memory cells having a same address.

Abstract: An apparatus includes a first bias circuit configured to generate a first current that varies with temperature according to a first slope. The apparatus also includes a second bias circuit configured to generate a second current that varies with temperature according to a second slope. The apparatus further includes a low noise amplifier including a transconductance stage that is responsive to an output of the first bias circuit. The apparatus also includes a load coupled to an output of the low noise amplifier and responsive to an output of the second bias circuit.

Abstract: A semiconductor device may include the following elements: a first doped portion; a second doped portion; an enclosing member, which encloses both the first doped portion and the second doped portion; a first barrier, which directly contacts the first doped portion; a second barrier, which directly contacts the second doped portion; a dielectric member, which is positioned between the first barrier and the second barrier and directly contacts each of the first barrier and the second barrier; a third barrier, which directly contacts the first doped portion; and a device component, wherein a portion of the device component is positioned between the dielectric member and the third barrier.

Abstract: A method includes forming a well treatment fluid by combining an aqueous fluid, a viscosifying agent, a crosslinker, and a rheology modifier containing an aldehyde. The viscosifying agent is crosslinked, increasing viscosity of the fluid. The method includes treating a well with the fluid exhibiting the increased viscosity, chemically changing the aldehyde after the crosslinking and thereby forming an acid, and decreasing viscosity of the crosslinked fluid as a result of forming the acid. The aldehyde may be glyoxal which forms oxalic acid, breaking a crosslink. A well treatment fluid is formulated with ingredients including an aqueous fluid and a viscosifying agent and a crosslinker configured to crosslink the viscosifying agent. The fluid includes a rheology modifier containing an aldehyde. The fluid may lack an aldehyde crosslinking delay additive.

Abstract: A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.

Abstract: A diverter fluid includes an aqueous carrier fluid, and a plurality of water-swellable polymer particles having a size of 0.01 to 100,000 micrometers. A method of hydraulically fracturing a subterranean formation penetrated by a reservoir includes injecting a fracturing fluid into the formation at a pressure sufficient to create or enlarge a fracture, injecting a diverter fluid into the formation, and injecting a fracturing fluid into the formation, wherein the flow of the fracturing fluid is impeded by the diverting agent and a surface fracture area of the fracture is increased. A method of controlling the downhole placement of a diverting agent is also disclosed, including injecting a diverter fluid including the diverting agent and an aqueous carrier fluid selected so that the polymer particles are fully swelled after contacting the aqueous carrier fluid for an amount of time sufficient to achieve a desired downhole placement.

Abstract: Methods and systems are described herein for securely analyzing transaction data of a user. A server computing device establishes a secure connection with a client device, which transmits transaction data to the server. The server establishes a hierarchy of nodes to profile a user's purchase history. The hierarchy includes a plurality of article nodes and category nodes. The server creates a new article node instance corresponding to the transaction data, the new article node storing descriptive properties of at least one item purchased by the user determined from the transaction data. The server links the new article node instance to at least one of the category nodes by classifying the descriptive properties of the item purchased with respect to relationships defined by the hierarchy. The server generates and transmits an event trigger to remind the user of a follow-up action and authenticates the client before the trigger is delivered.

Abstract: Methods and apparatuses are described for proximity-based and user-based access control using wearable devices. A short-range frequency reader coupled to a target device detects a plurality of wearable devices in proximity to the reader, each wearable device comprising a short-range frequency antenna. The reader identifies, for each wearable device, a user wearing the wearable device. The reader determines, for each wearable device, a distance from the reader and an orientation in relation to the target device. The reader determines a level of access available to the target device based upon the identity of each user, the distance of each wearable device from the reader, the orientation of each wearable device in relation to the target device, and the distance of the wearable devices from each other in a three-dimensional space.

Abstract: A global navigation satellite system (GNSS) receiver includes at least one GNSS antenna configured to receive input signaling from at least a first GNSS source and a second GNSS source; an in-phase/quadrature (I/Q) mixer coupled to the at least one GNSS antenna and configured to process the input signaling to obtain complex intermediate signaling; a first complex filter coupled to the I/Q mixer and configured to filter the complex intermediate signaling with respect to a first frequency range to obtain first real output signaling; a second complex filter coupled to the I/Q mixer and configured to filter the complex intermediate signaling with respect to a second frequency range to obtain second real output signaling; and a signal combiner coupled to the first and second complex filters and configured to generate combined real output signaling by combining the first real output signaling and the second real output signaling.

Abstract: A memory system includes a memory device and a memory controller. The memory device includes a plurality of memory cells. The memory controller is configured to continuously perform a plurality of write commands on the memory device between an active command and a precharge command. In the memory system, when after a first write operation having a last write command of the plurality of write commands is performed and then the precharge command is issued, the last write command is issued for a second write operation after the precharge command. The first write operation and the second write operation write a same data to memory cells of plurality of memory cells having a same address.

Abstract: Well treatment agents containing a particulate substrate are coated with a polyelectrolyte bilayer to provide a well treatment composite for use in well treatment operations. Each layer of the polyelectrolyte bilayer is composed of oppositely charged polyionic material. The well treatment composite may further contain a succession of polyelectrolyte bilayers, each polyelectrolyte bilayer containing layers of oppositely charged polyionic materials.

Abstract: A vehicle diagnostic system and a method are provided. The vehicle diagnostic system includes a receiving/processing module, and a database. The receiving/processing module is adapted for receiving the information related to a status of vehicle components from an OBD-II interface connected thereto. The information is then analyzed by a processing logic, so as to generate a vehicle health diagnostic report with respect to the corresponding vehicle components. In the vehicle health diagnostic report including the one or more table, in addition to enumerating the operation status of the vehicle components as “Pass/Fail”, there is also shown a testing result of the vehicle components, and there are also provided additional information and suggestions related to the vehicle components. The processing logic is stored in receiving/processing module and/or in the database.

Abstract: A computer program product is disclosed. The computer program product includes a computer useable medium that has a computer readable program. The computer readable program when executive on a computer causes the computer to receive a request from a component to invoke a function. Further, the computer readable program, when executed on a computer, causes the computer to asynchronously perform the function according to the request. In addition, the computer readable program, when executed on a computer, causes the computer to provide, to one or more programs, an indication that the function has completed work according to the request.

Abstract: A method of operating a volatile memory device includes storing address information of weak cell rows. According to some examples, after writing to a weak cell row, a refresh operation is performed on the weak cell row within a predetermined time. According to some examples, the writing operation to a weak cell row may be performed with a longer write recovery time than a write recovery time to normal cell rows.

Abstract: A multi-output power supply apparatus may include a transformer unit transforming a voltage level of input power using a primary winding and first and second secondary windings, a first output unit stabilizing power applied to the first secondary winding using a voltage multiplier circuit and outputting first power, and a second output unit stabilizing power applied to the second secondary winding and outputting second power.

Abstract: An injection process to treat sandstone or limestone subterranean formations using carboxylic acids, dicarboxylic acids and/or aminocarboxylic acids (e.g. glutamic acid N,N-diacetic acid (GLDA); methylglycine N,N-diacetic acid (MGDA); diethylene triamine pentaacetic acid (DTPA), etc.), further involves at least a two step injection process which may include, in one non-limiting embodiment, injecting a relatively higher concentration of organic acid to create wormholes accompanied by a relatively lower concentration of the same or different organic acid to enhance the permeability of the formation.