43rd week of 2014 patent applcation highlights part 21 |
Patent application number | Title | Published |
20140312847 | APPARATUS FOR CONTROLLING HOME COMMUNICATION - An apparatus for controlling home communication receives first battery information on a first battery of an electric vehicle, receives second battery information on a second battery of a home power storage device, and receives power policy information from a power supply facility. The apparatus for controlling home communication decides available options for charging the first battery on the basis of the first battery information, the second battery information, and the power policy information. The apparatus for controlling home communication comprises a step of controlling the charging of the first battery according to the available options. | 2014-10-23 |
20140312848 | SYSTEM AND METHOD FOR A DYNAMICALLY CONFIGURABLE POWER DISTRIBUTION CONTROL AND MANAGEMENT SYSTEM - An energy management system for monitoring and communicating characteristics of an intelligent energy storage device is disclosed. The energy management system includes at least one pack comprising one or more batteries in an energy storage device and the components to manage and wirelessly communicate the state characteristics of those batteries. The energy storage device is connected to a Local Pack Controller (LPC) which is configured to detect a connection to a host system and automatically establish a secure wireless connection to the Host System Controller (HSC). The LPC monitors the pack state and sends the state information wirelessly to the HSC, which then broadcasts the information wirelessly to a display and/or external network. Applications include, but are not limited to, integration in a vehicle, residential, industrial, or commercial market. | 2014-10-23 |
20140312849 | EXTERNAL BATTERY - An external battery includes a battery, a charger, a DC-DC conversion, a main controller (MC), and a switch. The charger supplies, to the battery, external power supplied from an adaptor to an input stage. The DC-DC converter converts output voltage of the battery into voltage having an amplitude different from that of the output voltage and transmits the converted voltage to an output stage. The MC senses discharge overcurrent of the battery using an output current of the DC-DC converter. The switch is controlled by the MC and is between the battery and the DC-DC converter. | 2014-10-23 |
20140312850 | APPARATUS AND METHOD FOR BATTERY BALANCING - Provided are an apparatus and a method for battery balancing, and more particularly, to an apparatus and a method for battery balancing capable of implementing balancing between batteries which are connected in parallel. | 2014-10-23 |
20140312851 | APPARATUS FOR PREVENTING ELECTRIC OVESTRESS IN ELECTRONIC DEVICE - An apparatus for preventing an electric overstress in an electronic device, which is capable of protecting the electronic device from the electric overstress is provided. The apparatus includes an interface unit for connecting the electronic device to an external device, includes an electric power terminal which is included in the interface unit and includes a first electric power terminal and a second electric power terminal which are electrically separated, and an electric overstress preventing unit connected with the first and second electric power terminals. | 2014-10-23 |
20140312852 | THE METHOD FOR TRANSFERRING WIRELESS POWER - This invention defines management protocols for wireless power transfer to multiple devices in Multi-device Wireless Power Management System. Various functions of Multi-device Wireless Power Management System are justified from this invention. The WPT frames and messages which work between the management block of a charger and the management block or the coupler block of a device, or the coupler block of a charger are defined as well to execute various functions. Also the procedures for each functionality are described based on its frames and messages. | 2014-10-23 |
20140312853 | METHOD FOR MONITORING AND OPTIMISING THE OPERATION OF A CHARGING TERMINAL FOR AN ELECTRIC VEHICLE AND CHARGING TERMINAL FOR IMPLEMENTING SAID METHOD - A method for monitoring and optimizing operation of a terminal, including: generating an output voltage equal to a first DC value; connecting a vehicle, the output voltage switching to a second value; authorizing charging of the vehicle by modulating the output voltage between two values, with a maximum authorized charge current being set; checking an ability of the vehicle to be recharged by monitoring a value of the output voltage; supplying an output voltage modulated between a third voltage value and a negative value; initializing a first timer; reading a diagnosis time between initialization and the switching of the voltage from the second to the third value; comparing the time with standard values to determine a type of charger; taking characteristics of the charger into account to optimize energy management. | 2014-10-23 |
20140312854 | CHARGING METHODS OF DETACHABLE ELECTRONIC DEVICES - An electronic device includes a first battery, a first charging unit, a first voltage adjustment unit, a power detection module, and a first control module. The first charging unit charges the first battery according to a supply voltage and a first charging enable signal. The first voltage adjustment unit outputs a first output voltage according to the supply voltage and a first battery voltage of the first battery. The power detection module generates a power consumption information according to the first output voltage. The first control module sets a charging time according to the supply voltage and the power consumption information, in which the first control module generates the first charging enable signal to control the first charging unit to charge the first battery according to the charging time. | 2014-10-23 |
20140312855 | MULTI-PURPOSE POWER MANAGEMENT CHIP AND POWER PATH CONTROL CIRCUIT - The present invention discloses a multi-purpose power management chip and a power path control circuit. The multi-purpose power management chip includes: a switch circuit including at least one power transistor; a switch control circuit for generating a first switch signal to control an operation of the power transistor to thereby control the power conversion between an input terminal and an output terminal; a power path management circuit for controlling the charging operation from the output terminal to the battery; a current source for supplying a current to the battery; and a path selection circuit for determining whether the charging operation to the battery is controlled by the power path management circuit and the current source or not according to whether a power path power transistor is provided on the power path or not. | 2014-10-23 |
20140312856 | ADJUSTABLE OUTPUT POWER SUPPLY - An adjustable output power supply with a data communications connector that at least partially complies with physical specifications of a defined data interface standard connector, such as a USB connector. The data communications connector has a number of data contacts and power contacts coupled to and providing output electrical power from a programmable power supply. A controller receives an indication of a detection of a feature of a mating connector coupled to the data communications connector, determines, based on receiving the detection, at least one resistance value between a data contact and at least one power contact, and adjusts an output voltage of the programmable power supply based on the at least one resistance value. | 2014-10-23 |
20140312857 | SWITCH-MODE POWER SUPPLY WITH TEMPERATURE AND CURRENT SHARING - A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) auto-tune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability. | 2014-10-23 |
20140312858 | POWER SUPPLY CIRCUITRY AND ADAPTIVE TRANSIENT CONTROL - A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode. | 2014-10-23 |
20140312859 | PHASE BALANCING OF POWER TRANSMISSION SYSTEM - Phase balancing techniques for power transmission systems are disclosed. In one embodiment, a phase balancing protocol ( | 2014-10-23 |
20140312860 | CONTROL OF A SOFT-SWITCHED VARIABLE FREQUENCY BUCK REGULATOR - A system and method are provided for controlling a soft-switched modified buck regulator circuit. A voltage (V | 2014-10-23 |
20140312861 | POWER SUPPLY - There is provided a power supply, including, a boost converter unit including a first boost converter having a first inductor, a first diode, and a first switching element, and a second boost converter having a second inductor, a second diode and a second switching element, an input voltage sensing unit sensing an input voltage applied to the boost converter unit, a control unit selecting one of a first boost mode in which current is divided between the first inductor and the second inductor, based on the input voltage, and a second boost mode in which current flows through the first inductor and the second inductor in this order, based on the input voltage, and a switching unit selecting one of the first boost mode and the second boost mode, based on the selection of the control unit. | 2014-10-23 |
20140312862 | DC-DC CONVERTER - The present invention is applicable to the field of direct current conversion, and provides a DC-DC converter. In the present invention, a DC-DC converter including a triangular wave generation module and a switch control module is adopted. The triangular wave generation module generates a triangular wave signal according to voltages at both ends of an energy storage inductor L | 2014-10-23 |
20140312863 | CONTROL CIRCUIT FOR STEP-UP DC/DC CONVERTER - A switching transistor is configured such that its on resistance R | 2014-10-23 |
20140312864 | LIGHT LOAD STABILITY CIRCUITRY FOR LDO REGULATOR - A linear regulator contains an additional AC-coupled feedback loop between the output of the error amplifier and the base of the pass transistor that increases the frequency of the pole at the output of the error amplifier at light load currents to at least partially offset the decreased frequency of the output pole at the lighter load currents. Thus, a desired phase margin is preserved. The AC-coupled feedback loop includes a bipolar feedback transistor connected in parallel with the pass transistor. A resistor is connected to the emitter of the feedback transistor to reduce the relative gain of the feedback transistor above light load currents. A feedback capacitor Cfb is connected between the collector of the feedback transistor and the output of the error amplifier. The negative AC feedback increases the pole frequency at the output of the error amplifier and the base of the pass transistor. | 2014-10-23 |
20140312865 | VOLTAGE GENERATOR WITH CURRENT SOURCE COMPENSATED FOR AN ERROR CURRENT OPERABLE OVER A WIDE VOLTAGE RANGE - In one embodiment, a regulator circuit for generating a regulated output voltage Vout has an error amplifier using a pair of bipolar transistors at its front end. The error amplifier compares the regulated output voltage to a reference voltage Vref. A precision current source draws a first current through a user-selected set resistance to generate the desired Vref. The regulator circuit controls a power stage to cause Vout to be equal to Vref. The base current into one of the bipolar transistors normally distorts the current through the set resistance. A base current compensation circuit is coupled to the current source to adjust the first current by a value equal to the base current to offset the base current. Therefore, Vref is not affected by the base current. The error amplifier may be in a linear regulator or a switching regulator. The compensation circuit may be used in other applications. | 2014-10-23 |
20140312866 | LINEAR REGULATOR IC WITH VERSATILE GROUND PIN - A linear regulator integrated circuit may be formed having four external terminals including a voltage input (Vin) terminal, a voltage output (Vout) terminal, a Set terminal, and an operational amplifier (op amp) power terminal. A user connects an external resistor to the Set terminal for creating a reference voltage. An op amp controls a pass (or series transistor) to cause an output voltage at the Vout terminal to equal the reference voltage. The op amp has a first power supply terminal internally coupled to the Vin terminal and a second power supply terminal coupled to the op amp power terminal. The op amp power terminal allows a user to externally couple the op amp second power supply terminal to either the Vout pin (for high voltage applications), system ground (for medium voltage applications), or another voltage (to provide additional headroom in very low voltage applications). | 2014-10-23 |
20140312867 | LOW DROP OUT VOLTAGE REGULATOR AND RELATED METHOD OF GENERATING A REGULATED VOLTAGE - A low drop out voltage regulator includes an operational transconductance amplifier configured to be supplied with a supply voltage of the regulator, receive as inputs a reference voltage and a feedback voltage, and generate an intermediate current based upon a difference between the reference voltage and the feedback voltage. A current-to-voltage amplification stage is configured to be supplied with a boosted voltage greater than the supply voltage from a high voltage line, receive as input the intermediate current, and generate a driving voltage that is changed based upon the intermediate current. A pass transistor is controlled with the driving voltage to keep constant on a second conduction terminal thereof a regulated output voltage. A feedback network generates the feedback voltage based on the regulated output voltage. | 2014-10-23 |
20140312868 | CONTROL OF A SOFT-SWITCHED VARIABLE FREQUENCY MULTI-PHASE REGULATOR - A system and method are provided for controlling a multi-phase switching regulator including a first phase and a second phase, where the first phase includes a first modified buck regulator circuit and the second phase includes a second modified buck regulator circuit. The first phase and the second phase are activated. The first phase is operated in a soft-switching mode to provide current to a load for a first portion of an operating cycle and the second phase is operated in a soft-switching mode to provide current to the load for a second portion of the operating cycle. | 2014-10-23 |
20140312869 | Universal Phase Dimming Module - A universal load control module may include a power supply that operates over a wide voltage range, a microcontroller, and one or more functional control blocks. A functional control block may include a dimmer circuit for controlling a lighting load that provides reverse phase cut mode dimming, forward phase cut mode dimming, and hybrid phase cut mode dimming, as well as thermal protection. One or more universal control modules may be housed in a cabinet that include a cabinet control module. The cabinet may include additional thermal protection measures. | 2014-10-23 |
20140312870 | BOOST-TYPE SWITCHING REGULATOR AND SEMICONDUCTOR DEVICE FOR BOOST-TYPE SWITCHING REGULATOR - A boost-type switching regulator includes an inductor; a rectifying element; a capacitor; a switching element; an output terminal; a detection voltage generating unit; an output voltage controlling unit; and a detection voltage level shifting unit. The detection voltage generating unit generates a detection voltage according to an output voltage. The output voltage controlling unit turns on and off the switching element to increase the output voltage when the detection voltage is smaller than a specific value, and to turn off the switching element to decrease the output voltage when the detection voltage is greater than the specific value. The detection voltage level shifting unit shifts the detection voltage so that the detection voltage during a voltage increasing period becomes greater than the detection voltage during a voltage decreasing period. | 2014-10-23 |
20140312871 | APPARATUS AND METHOD FOR WETTING CURRENT MEASUREMENT AND CONTROL - A voltage signal and a wetting current are received from a switching device. A first pulse train is created from the voltage signal and the first pulse train has a first duty cycle that is proportional to the voltage at the switching device. The first pulse train is transmitted across an isolation barrier. The first pulse train that is received across the isolation barrier is digitized and at least one operating condition of the switching device is determined based upon the digitized pulse train. A second pulse train having a second duty cycle is received and the wetting current from the switching device is controlled based upon the second duty cycle. | 2014-10-23 |
20140312872 | POWER SUPPLY CIRCUIT - A power supply circuit | 2014-10-23 |
20140312873 | ESTIMATING AND MONITORING THE EFFECTS OF TRANSISTOR AGING - One embodiment of the present invention sets for a method for monitoring the aging of a circuit. The method includes operating an aging unit included in the circuit beginning at a first time. The method also includes in response to a trigger event, operating a non-aging unit also included in the circuit beginning at a second time wherein the second time is subsequent to the first time. The method further includes detecting a frequency difference between a first frequency generated by the aging unit and a second frequency generated by the non-aging unit. The method also includes generating a modified power supply voltage based on the frequency difference. The method also includes applying the modified power supply voltage to the non-aging unit. | 2014-10-23 |
20140312874 | METHOD AND APPARATUS FOR DETERMINING A TARGET LIGHT INTENSITY FROM A PHASE-CONTROL SIGNAL - A dimmable ballast circuit for a compact fluorescent lamp controls the intensity of a lamp tube in response to a phase-control voltage received from a dimmer switch. The ballast circuit comprises a phase-control-to-DC converter circuit that receives the phase-control voltage, which is characterized by a duty cycle defining a target intensity of the lamp tube, and generates a DC voltage representative of the duty cycle of the phase-control voltage. Changes in the duty cycle of the phase-control voltage that are below a threshold amount are filtered out by the converter circuit, while intentional changes in the duty cycle of the phase-control voltage are reflected in changes in the target intensity level and thereby the intensity level of the lamp tube. | 2014-10-23 |
20140312875 | STARTUP CIRCUITS WITH NATIVE TRANSISTORS - Startup circuits with native transistors. In some embodiments, a startup circuit may include a first inverter configured to receive a bandgap voltage (V | 2014-10-23 |
20140312876 | Low Power Tunable Reference Voltage Generator - A method and apparatus for generating an improved reference voltage for use, for example, in a system requiring accurate low power operation. In particular, our reference voltage generator is adapted to output VREF as a function of the voltage difference between V1 and V2. The reference voltage generator is further adapted to include our reference voltage tuner to compensate for predetermined sensitivities of the reference voltage VREF, and to adjust the absolute value of VREF. During manufacturing and system test, a driver may be used to drive a buffered or unbuffered version of VREF to off-chip test functionality. Also, a configuration memory may be used to store the trim settings during normal operation, and make such settings available to outside resources. | 2014-10-23 |
20140312877 | AC/DC-Sensitive Residual Current Protective Device (RCD) With Parameter Configuration - A residual current protective device (RCD) and a method for AC/DC-sensitive differential current measurement with a voltage-dependent functional unit, which includes an AC/DC-sensitive differential current measuring device, has a current sensor and an AC/DC-sensitive current detection module. A microcontroller configures the voltage-dependent functional unit and evaluates the differential current detected by the AC/DC-sensitive differential current measuring device. | 2014-10-23 |
20140312878 | METHOD FOR INDEXING DIES COMPRISING INTEGRATED CIRCUITS - Indexing a plurality of die obtainable from a material wafer comprising a plurality of stacked material layers. Each die is obtained in a respective position of the wafer. A manufacturing stage comprises at least two steps for treating a respective superficial portion of the material wafer that corresponds to a subset of said plurality of dies using the at least one lithographic mask through the exposition to the proper radiation in temporal succession. The method may include providing a die index on each die which is indicative of the position of the respective die by forming an external index indicative of the position of the superficial portion of the material wafer corresponding to the subset of the plurality of dies including said die and may comprise a plurality of electronic components electrically coupled to each other by means of a respective common control line. | 2014-10-23 |
20140312879 | METHOD TO REALIZE ELECTRONIC FIELD-EFFECT TRANSISTOR SENSORS - A transistor includes at least one conductive layer, at least one gate dielectric layer and at least one semiconducting film deposited on top of a receptor molecule layer previously deposited or covalently linked to the surface of the gate dielectric. The layer of biological material includes single or double layers of phospholipids, layers made of proteins such as receptors, antibodies, ionic channels and enzymes, single or double layers of phospholipids with inclusion or anchoring of proteins such as: receptors, antibodies, ionic channels and enzymes, layers made of oligonucleotide (DNA, RNA, PNA) probes, layers made of cells or viruses, layers made of synthetic receptors for example molecules or macromolecules similar to biological receptors for properties, reactivity or steric aspects. | 2014-10-23 |
20140312880 | WIRELESS LAMP POWER SUPPLY DETECTION SYSTEM AND METHOD - A wireless lamp detection system ( | 2014-10-23 |
20140312881 | SYSTEM AND METHOD FOR DETERMINING ROTOR POSITION OFFSET OF AN ELECTRIC MACHINE - A method according to an exemplary aspect of the present disclosure includes, among other things, detecting a position, including a polarity, of a rotor to detect incorrect rotor position offset of an electric machine without generating torque or motion within the electric machine. | 2014-10-23 |
20140312882 | Anti-Islanding Protection in Three-Phase Converters Using Grid Synchronization Small-Signal Stability - A small signal feedback loop or feed-forward loop having gain provides substantially unconditional instability in a phase locked loop when a reference phase signal is lost. The small signal feedback or feed-forward also modifies phase locked loop bandwidth when the reference phase signal is lost to increase rapidity of response to loss of reference phase signal while maintaining insensitivity to reference voltage amplitude change while the reference phase signal is present. The performance thus achieved is particularly suitable for rapid condition detection response and control of a grid connected power converter under islanding conditions. | 2014-10-23 |
20140312883 | Circuits and Methods for Generating a Self-Test of a Magnetic Field Sensor - A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation. | 2014-10-23 |
20140312884 | METHOD AND ARRANGEMENT FOR DETERMINING LOCATION AND/OR SPEED OF A MOVING OBJECT AND USE OF THE ARRANGEMENT - A method and an arrangement is provided for determining the location and/or speed of an object configured to move along a controlled trajectory, in connection with which object is fitted a measuring device measuring at least the magnetic field acting on the object in its different locations, which measuring device comprises a device configured to measure the magnetic field, from the measuring data received from which device a magnetic footprint describing the magnetic field acting on the object in its different locations is formed, which magnetic footprint is recorded in connection with a teaching run, or with self-learning, for later use. The location of the object after a teaching run is determined by measuring in essentially real-time in the direction of the three coordinates X, Y, Z of the magnetic field acting on the object moving along a controlled trajectory and by comparing the measurement results to a magnetic footprint recorded in advance and also by deducing as a result of the comparison the exact location of the object on its path of travel. | 2014-10-23 |
20140312885 | MAGNETIC FLUX ENHANCER SYSTEM FOR RELUCTANCE TYPE SENSORS - A magnetic flux enhancer system for a reluctance type resolver and an electromagnetic angle sensor having the same are provided. The electromagnetic angle sensor has a stator ( | 2014-10-23 |
20140312886 | MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND OSCILLATION SIGNAL FREQUENCY CALCULATION METHOD THEREFOR - A magnetic permeability detector includes an LC oscillator circuit including a coil and a capacitor; and a resistor connected in series with the coil. | 2014-10-23 |
20140312887 | APPARATUS AND METHOD FOR MONITORING THE STRUCTURAL INTEGRITY OF A PIPELINE - An inspection apparatus ( | 2014-10-23 |
20140312888 | Flexible Magnetostrictive Probe Having Sensor Elements Without Permanent Magnets - A sensor for use in magnetostrictive testing of a structure. An array of sensor elements is attached to a flexible backing. Each sensor element has a thin strip made from magnetostrictive material, a first coil wrapped around the width of the strip and operable to provide a DC bias magnetic field, and a second coil wrapped around the width of the strip and operable for MsS generation and detection. Typically, the first coils of all strips are electrically connected to each other and the second coils of all strips are electrically connected to each other, to form two separate coil circuits. The probe may be wrapped around the circumference of a cylindrical structure, and used for magnetostrictive testing. | 2014-10-23 |
20140312889 | MAGNET EVALUATION DEVICE AND METHOD - A magnet evaluation device is provided for evaluating a magnet having at least two magnetic pieces bonded to an insulating material sandwiched between two adjacent ones of the magnetic pieces. The magnet evaluation device has an excitation coil and a detection coil. The excitation coil is configured to generate a magnetic field that has a size in a range that corresponds to a region including the insulating material. The detection coil has a coil diameter that is smaller than a length of one of the magnetic pieces in a direction in which the magnetic pieces are aligned. | 2014-10-23 |
20140312890 | APPARATUS AND METHOD FOR MONITORING THE STRUCTURAL INTEGRITY OF A PIPELINE BY MEANS OF A SUPERCONDUCTING MAGNET - An inspection apparatus ( | 2014-10-23 |
20140312891 | Eddy Current Inspection Probe Based on Magnetoresistive Sensors - A device and method of eddy current based nondestructive testing of tubular structures made of electrically conductive materials is disclosed. The device includes a plurality of excitation electromagnets having an axis of symmetry and magnetoresistive sensors having an easy axis for magnetic field sensing; wherein the magnetoresistive sensors are arranged in a circular array on a single plane with the easy axis aligned radially with respect to the circular pattern and wherein the electromagnets are arranged in a circular pattern on both sides of the plane with their axes of symmetry being arranged parallel to the plane and orthogonal to radii of the circular pattern on which the electromagnets are placed. | 2014-10-23 |
20140312892 | COMPENSATION CURRENT SENSOR ARRANGEMENT - The current sensor arrangement according to the compensation principle has a primary conductor, designed to generate a primary magnetic field dependent on a current to be measured flowing through it, a first secondary winding, designed to generate a first secondary magnetic field dependent on a first compensation current flowing through said winding, a second secondary winding designed to generate a second secondary magnetic field dependent on a second compensation current flowing through said winding, a magnetic field sensor designed to generate a measurement signal that represents a magnetic field detected by it; a magnetic core of soft magnetic material designed and arranged to magnetically interconnect a primary conductor, a first seconding winding, a second secondary winding, and a magnetic field sensor; a first evaluation circuit, downstream from the magnetic field sensor and upstream from the first secondary winding, and designed to generate a first compensation current corresponding to the measurement signal of the magnetic field sensor and feed the first secondary winding; and a second evaluation circuit, upstream from the second secondary winding and designed to generate a second compensation current corresponding to the first compensation current and feed the secondary winding. The magnetic field detected by the magnetic field sensor is the magnetic field in the magnetic core resulting from the superposition of the primary magnetic field, the first secondary magnetic field, and the second secondary magnetic field. The first compensation current and the second compensation current are adjusted by the first evaluation circuit and the second evaluation circuit such that the resulting magnetic field detected by the magnetic field sensor becomes zero. The second compensation current is greater or smaller than the first compensation current and represents the current to be measured flowing in the primary conductor. | 2014-10-23 |
20140312893 | INTELLIGENT ELECTRONIC SENSORS FOR MONITORING ELECTRICAL CIRCUITS - Intelligent electronic sensors, system containing such sensors, and methods for using such sensors for monitoring electrical circuits are described herein. The electronic sensors can monitor current flow through a conducting line and are oriented substantially parallel to the conducting line. The electronic sensors comprise a sensor module comprising a current sensor chip, a shield, a conductor stabilizer located proximate the conducting line, and a securement device to connect the electronic sensor to the conducting line. These sensors may be non-intrusive, intelligent, multipurpose, have both a standalone and open architecture, and may be submersible. The sensors may be quickly mounted to live conducting lines without requiring outages and disturbing control circuitry and their outputs may be easily marshaled to new or existing IEDs. Other embodiments are described. | 2014-10-23 |
20140312894 | MEASURING DEVICE FOR MEASURING THE MAGNETIC PROPERTIES OF THE SURROUNDINGS OF THE MEASURING DEVICE - A measuring device for measuring magnetic properties of the surroundings of the device includes at least one magnetoresistive element extending in a line direction, and a support field device generating a magnetic support field in an area over the line direction. A pre-magnetization device of one or more magnets are arranged at a distance from the sensor line in a direction vertical to the line direction and extending parallel to the line direction. The pre-magnetization device is arranged relative to the sensor line such that the fields of the pre-magnetization device and the support magnetic field overlap to provide an overlapping magnetic field with a field strength component pointing in the line direction that is greater at one location on the sensor line than the strength of a field component pointing vertically toward the line direction not in the direction of the height of the magnetoresistive element. | 2014-10-23 |
20140312895 | NON-CONTACT CURRENT AND VOLTAGE SENSOR - A detachable current and voltage sensor provides an isolated and convenient device to measure current passing through a conductor such as an AC branch circuit wire, as well as providing an indication of an electrostatic potential on the wire, which can be used to indicate the phase of the voltage on the wire, and optionally a magnitude of the voltage. The device includes a housing that contains the current and voltage sensors, which may be a ferrite cylinder with a hall effect sensor disposed in a gap along the circumference to measure current, or alternative a winding provided through the cylinder along its axis and a capacitive plate or wire disposed adjacent to, or within, the ferrite cylinder to provide the indication of the voltage. | 2014-10-23 |
20140312896 | Observation of Axial Magnetization of an Object in a Magnetic Field - A method of observing axial magnetization (Mz) in an object (O) located in a main magnetic field (B | 2014-10-23 |
20140312897 | MAGNETIC RESONANCE IMAGING DATA CORRECTION METHODS AND SYSTEMS - Systems and methods for correcting magnetic resonance (MR) data are provided. One method includes receiving the MR data and correcting errors present in the MR data due to non-uniformities in magnetic field gradients used to generate the diffusion weighted MR signals. The method also includes correcting errors present in the MR data due to concomitant gradient fields present in the magnetic field gradients by using one or more gradient terms. At least one of the gradient terms is corrected based on the correction of errors present in the MR data due to the non-uniformities in the magnetic field gradients. | 2014-10-23 |
20140312898 | Method for generating a desired spatially variable temporal profile of the magnetization state in magnetic resonance - A method for generating a desired temporal profile of the magnetization state in an object under examination (O) during an experiment involving magnetic resonance is characterized in that at least one spatially dependent change in the magnetization state inside the object under examination (O) is predefined and spatially selective radio-frequency pulses, which allow a simultaneous and independent change in the magnetization state at locations with different stipulations, are irradiated in order to implement the predefined spatially dependent change in the magnetization state. The method permits establishment of the same desired temporal profile of the magnetization state for different regions of the object under examination despite different given experimental parameters or deliberate generation of different desired profiles of the magnetization state at different locations. | 2014-10-23 |
20140312899 | METHOD AND APPARATUS FOR SINGLE CARRIER WIDEBAND MAGNETIC RESONANCE IMAGING (MRI) DATA ACQUISITION - A method and apparatus for single carrier wideband magnetic resonance imaging (MRI) data acquisition are provided. The method includes the following steps: exciting a slice or slab with the use of RF pulse and a slice/slab selection gradient; applying a phase encoding gradient along a phase encoding direction and reducing a FOV along the phase encoding direction by a factor of W through k-space subsampling; applying a frequency encoding gradient along a frequency encoding direction and increasing a FOV along the frequency encoding direction by a factor of W | 2014-10-23 |
20140312900 | Spinning Controller for NMR Sample Tube - A spinning controller has an arithmetic unit ( | 2014-10-23 |
20140312901 | Miniature NMR Drill Cutting Analyzer and Methods of Use - A nuclear magnetic resonance (NMR) sample analyzer has a plurality of NMR units arrayed in a predetermined relationship to each other. Each of the NMR units includes a sample chamber having a sensitive volume for containing a sample to be analyzed; a radio frequency (RF) transmitting and receiving device proximal the sample chamber; and a magnet surrounding the RF transmitting and receiving device and sample chamber for generating a substantially uniform magnetic field within the sensitive volume and substantially no magnetic field beyond an outside wall of the magnet. | 2014-10-23 |
20140312902 | Local Coil - A local coil for an MRI system includes a signal antenna to receive a magnetic resonance signal and a tuning/detuning circuit to subject the signal antenna part to switch control according to a control signal. The tuning/detuning circuit is connected to the signal antenna part. The tuning/detuning circuit includes a control signal interface, a resonant circuit and an AC/DC conversion circuit. The control signal interface receives the control signal. The resonant circuit includes a diode. The AC/DC conversion circuit converts an alternating current generated by an electromagnetic wave to a direct current. The AC/DC conversion circuit is connected in series with the diode. A small detuning control current may be used, and detuning control circuitry may be reduced. | 2014-10-23 |
20140312903 | MULTI-FREQUENCY LOCATING SYSTEMS AND METHODS - Multi-frequency buried object location system transmitters and locators are disclosed. A transmitter may generate and provide output signals to a buried object at a plurality of frequencies, which may be selected based on a connection type. Corresponding locators may simultaneously receive a plurality of magnetic field signals emitted from the buried object and generate visual and/or audible output information based at least in part on the plurality of received magnetic field signals. The visual and/or audible output may be further based on signals received from a quad-gradient antenna array. | 2014-10-23 |
20140312904 | METHOD OF LOCATING THE POSITION OF LINEAR OBJECTS - A method of locating a position of a linear object, including arranging a first and a second reactor around a measuring point, the first reactor generating an induced voltage corresponding to an X-direction component of a magnetic field, the X direction perpendicular to a running direction of the object, and the second reactor generating an induced voltage corresponding to a Y-direction component of the field, the Y direction perpendicular to the X-direction and the running direction; obtaining a first reactor induced voltage and a second reactor induced voltage; setting an X-distance as a first distance from the point to the object center, and setting the Y-distance as a second distance; and estimating a direction in which the linear object is located as viewed from the point, by regarding an X-distance to Y-distance ratio as equal to a ratio of the first voltage to the second voltage multiplied by a coefficient. | 2014-10-23 |
20140312905 | Reverse Semi-Airborne Electromagnetic Prospecting - Method for semi-airborne electromagnetic prospecting for hydrocarbons or other fluids or minerals. In the method, electromagnetic receivers are deployed on the Earth's surface over a subsurface region ( | 2014-10-23 |
20140312906 | FRACTAL SHAPED ANTENNA FOR DOWNHOLE LOGGING - An apparatus for estimating a subsurface material property includes: a first energy interface device configured to transmit electromagnetic or electrical energy into the subsurface material; a second energy interface device configured to receive return electromagnetic or electrical energy due to the transmitted electromagnetic or electrical energy interacting with the subsurface material; and a processor configured to estimate the property using a signal received from the second device; wherein at least one of the first energy interface device and the second energy interface device is a fractal-shaped antenna comprising a base motif figure and at least one scaled down replication of the base motif figure, the at least one replication being a change from the base motif by at least one of a linear displacement translation and a rotation, and a position of the replication upon the base motif figure is by at least one of rotation, translation, and stretching. | 2014-10-23 |
20140312907 | Sensing Cable with Parallel Spiral Transmission Line Structure for Distributed Sensing and Measuring of Rock-Soil Mass Deformation - This present disclosure provides a sensing cable of parallel spiral transmission line structure for distributed sensing and measuring of rock-soil mass deformation. A circular cross-section of a silicone strip is tightly wounded by two mutually-insulated wires. The two mutually-insulated wires form the spiral cable. The two mutually-insulated wires are wrapped around and covered by a silicone shroud. They constitute a sensing cable. A termination matching impedance is connected to one end of each of the two mutually-insulated wires. A time domain reflectometry measurement instrument is connected to the other end of the two mutually-insulated wires. The present disclosure implements a distributed positioning and measurement of rock-soil mass deformation. | 2014-10-23 |
20140312908 | LCD SOURCE DRIVER FEEDBACK SYSTEM AND METHOD - An electrical assembly and method for detecting failures in an LCD source driver is disclosed herein. A plurality of active channels are placed on the source driver which communicate electronically with an LCD. At least one dummy channel may be placed on the source driver which is driven with an original signal. A microprocessor may then receive the dummy channel and compare the received dummy channel signal to the original signal. An error message may be transmitted when the received dummy channel signal does not match the original signal. Alternatively, the source driver may be provided with a split active channel which is provided with an original signal that is split into an active split channel and a dummy split channel. While the active split channel is sent to the LCD, the dummy split channel is sent to the microprocessor for comparison with the original signal. | 2014-10-23 |
20140312909 | PROGRAMMABLE CONTACT INPUT APPARATUS AND METHOD OF OPERATING THE SAME - At embedded control logic, electrical information with respect to a switching device is sensed. A decision is made as to an operation of the control logic based on the sensed information. The operation may be one or more of setting a wetting current or determining whether the electrical information is within an acceptable range. | 2014-10-23 |
20140312910 | BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system includes a sensing unit and a main controller unit (MCU) is disclosed. In one aspect, the sensing unit is configured to measure a current value and a voltage value of a battery under a discharge condition of the battery. In addition, the MCU is configured to receive the current and voltage values and further configured to manage capacities of the battery based at least in part on the current and voltage values. In addition, the MCU includes a an unusable capacity calculating unit configured to calculate an unusable capacity corresponding to a portion of a theoretical maximum capacity of the battery that is unusable under the discharge condition, where the unusable capacity is calculated based at least in part on the current value and an internal resistance value of the battery under the discharge condition. | 2014-10-23 |
20140312911 | BATTERY - The present invention relates to a battery. The battery includes: a detecting apparatus, located inside the battery and on an anode or cathode end of the battery, and configured to detect an electric potential inside the battery; and a conducting wire, electrically connected to the detecting apparatus and insulated from the anode and cathode of the battery, and configured to export a value of the electric potential measured by the detecting apparatus. The battery according to embodiments of the present invention is provided with a built-in detecting apparatus, which is led out together with the anode and cathode of the battery by using the conducting wire electrically connected to the detecting apparatus. This design achieves accurate and reliable measurement of a potential at a single electrode. | 2014-10-23 |
20140312912 | Method and Circuitry to adaptively Charge a Battery/Cell - The present inventions, in one aspect, are directed to techniques and/or circuitry to adapt the charging of a battery using data which is representative of an overpotential or relaxation time (full or partial) of the battery. In another aspect the present inventions are directed to techniques and/or circuitry to calculate data which is representative of an overpotential or relaxation time (full or partial) of the battery. In yet another aspect the present inventions are directed to techniques and/or circuitry to calculate data which is representative of a state of charge of the battery using an overpotential or relaxation time (full or partial) of the battery. | 2014-10-23 |
20140312913 | BATTERY MONITORING APPARATUS AND BATTERY MONITORING SYSTEM - A battery monitoring apparatus comprises a reception section to receive a radio signal and to output power and a demodulated signal according to the radio signal; a first power source circuit to perform power supply based on the power; a decode circuit to operate upon receiving the power supply from the first power source circuit and to output an activation signal and a command based on the demodulated signal; a second power source circuit to be activated according to the activation signal and to perform power supply; a battery monitoring circuit to operate upon receiving the power supply from the second power source circuit and to output a monitoring result of a state of the battery according to the command; and a transmission section to operate upon receiving the power supply from the second power source circuit and to wirelessly transmit the monitoring result. | 2014-10-23 |
20140312914 | System and Method for Measuring Battery Voltage - An apparatus and method for measuring battery voltage includes a first capacitor configured to receive a charge from a battery. A first switch may be configured to selectively couple the first capacitor to the battery. A second capacitor may be coupled to a reference potential. A second switch may be configured to selectively couple the second capacitor to the first capacitor to transfer at least a portion of the charge on the first capacitor to the second capacitor. | 2014-10-23 |
20140312915 | Battery-State Monitoring System - A battery-state monitoring system capable of efficiently estimating the state and service life of each storage battery at high precision by automatically measuring or acquiring various parameters of a plurality of storage batteries constantly connected to an equipment is provided. The system monitors a state of each of a plurality of batteries connected in series and constituting an assembled battery incorporated in an equipment includes a power supply control device that detects a current flowing through each battery; and an end device that measures a temperature, a voltage, and internal resistance of each battery, the internal resistance being measured by using at least two or more kinds of frequencies, and degradation of each battery is estimated based on one or more temperature, voltage, and internal resistance. | 2014-10-23 |
20140312916 | METHODS OF AND APPARATUSES FOR MEASURING ELECTRICAL PARAMETERS OF A PLASMA PROCESS - A sensor apparatus for measuring a plasma process parameter for processing a workpiece. The sensor apparatus includes a base, an information processor supported on or in the base, and at least one sensor supported on or in the base. The at least one sensor includes at least one sensing element configured for measuring an electrical property of a plasma and may include a transducer coupled to the at least one sensing element. The transducer can be configured to receive a signal from the sensing element and convert the signal into a second signal for input to the information processor. | 2014-10-23 |
20140312917 | Method and Device for Determining a Maximum Leakage Current - The invention relates to a method and a device for determining a maximum leakage current in unearthed power supply networks with a plurality of conductors. The method comprises the steps of: feeding of a measurement signal U | 2014-10-23 |
20140312918 | APPARATUS, METHOD AND SYSTEM FOR RANDOM NUMBER GENERATION - Techniques and mechanisms for generating a random number. In an embodiment, a first signal is received from a first cell including a first source follower transistor. Circuit logic detects for a pulse of the first signal and, in response to the pulse, generates a signal indicating detection of a first random telegraph noise event in the first source follower transistor. In another embodiment, a first count update is performed in response to the indicated detection of the first random telegraph noise event. The first count update is one basis for generation of a number corresponding to a plurality of random telegraph noise events. | 2014-10-23 |
20140312919 | CONFIGURABLE ANALOG FRONT-END FOR MUTUAL CAPACITANCE SENSING AND SELF CAPACITANCE SENSING - Capacitance sensing circuits and methods are provided. A dual mode capacitance sensing circuit includes a capacitance-to-voltage converter having an amplifier and an integration capacitance coupled between an output and an inverting input of the amplifier, and a switching circuit responsive to mutual mode control signals for a controlling signal supplied from a capacitive touch matrix to the capacitive to voltage converter in a mutual capacitance sensing mode and responsive to self mode control signals for controlling signals supplied from the capacitive touch matrix to the capacitance-to-voltage converter in a self capacitance sensing mode, wherein the capacitance sensing circuit is configurable for operation in the mutual capacitance sensing mode or the self capacitance sensing mode. | 2014-10-23 |
20140312920 | NON-CONTACT OPERATION DETECTION DEVICE FOR VEHICLE - A non-contact operation detection device for a vehicle includes: a spacer; a sensor electrode supported on a first surface of the spacer; a first electrode supported on a second surface on a side opposite to the first surface of the spacer; and a determination unit determining a change in capacitance detected by the sensor electrode. | 2014-10-23 |
20140312921 | FUEL PROPERTY SENSOR AND METHOD FOR DETECTING MALFUNCTION OF THE SAME - An electrode unit includes a first electrode and a second electrode, which define a space to flow fuel therethough. A detection circuit is connected to the first electrode to charge and discharge the electrode unit and to detect a capacitance of fuel, which flows through the space. A switch device is equipped to a wiring, which connects the second electrode with the ground, and configured to simulate disconnection between the second electrode and the ground. A malfunction detection unit is configured to detect disconnection of the wiring when a difference between a capacitance, which is detected with the detection circuit when the switch device is turned ON, and a capacitance, which is detected with the detection circuit when the switch device is turned OFF, is smaller than a first threshold. | 2014-10-23 |
20140312922 | DEVICE AND METHOD FOR DETERMINING CAPACITANCE - A device and method of determining a capacitance of a device is provided, which in one embodiment includes connecting a first terminal of a capacitor having a known capacitance to the first terminal of the device, applying an AC voltage to the first terminal of the device and the first terminal of the capacitor, measuring a current through the capacitor, measuring a current through the device, determining a first voltage across the device as a function of time, computing a capacitance of the device as a function of time by multiplying the capacitance of the capacitor by the ratio of the current through the device to the current through the capacitor, determining a capacitance of the device as a function of voltage based on the capacitance as a function of time and the first voltage across the device as a function of time, and outputting data of the first capacitance of the device as a function of voltage. | 2014-10-23 |
20140312923 | CONTACT INPUT APPARATUS SUPPORTING MULTIPLE VOLTAGE SPANS AND METHOD OF OPERATING THE SAME - A voltage from a switching device across a plurality of attenuation paths is received. Each of the attenuation paths provides a different attenuation to the voltage from the others. At embedded control logic, at least one of the plurality of attenuation paths is chosen and a sensed voltage is determined according to the at least one attenuation path that is chosen. | 2014-10-23 |
20140312924 | HANDLER AND INSPECTION APPARATUS - A handler includes: a rotating section which is a holding unit mounting section which can take a mounted state in which a holding unit for holding an IC device is mounted; and a transportation mechanism which transports the IC device held by the holding unit. The rotating section includes a heat generation section which generates heat and a heating flow path through which fluid which is heated by the heat generation section and is used for heating of the IC device passes. | 2014-10-23 |
20140312925 | VIBRATING DEVICE FOR POSITIONING A MINIATURIZED PIECE IN A TESTING ACCOMMODATION, AND POSITIONING METHOD - An embodiment of a device for positioning a miniaturized piece, including: a positioning structure, which forms a first cavity, designed to receive with play the miniaturized piece, and a second cavity communicating with the first cavity; at least one electrical-contact terminal, facing the second cavity and electrically coupleable to an electronic testing device, designed to carry out an electrical test on the miniaturized piece; and an actuator device, which causes a vibration of the positioning structure, the vibration being such that the miniaturized piece translates, in use, towards the second cavity, until it penetrates at least in part into the second cavity. | 2014-10-23 |
20140312926 | TESTING STACKED DEVICES - Testing stacked devices. In accordance with a first method embodiment, a primary circuit assembly is accessed from a first circuit assembly carrier. The primary circuit assembly is placed into a test fixture. A secondary circuit assembly is accessed from a second circuit assembly carrier. The secondary circuit assembly is placed into the test fixture on top of the primary circuit assembly. The primary circuit assembly is tested in conjunction with said secondary circuit assembly while coupled together. | 2014-10-23 |
20140312927 | TERMINATING RESISTANCE GENERATION DEVICE FOR DIFFERENTIAL INPUT MODE COMMUNICATION AND DIFFERENTIAL INPUT MODE COMMUNICATION DEVICE - Disclosed are a terminating resistance generation device for differential input mode communication and a differential input mode communication device. The terminating resistance generation device for differential input mode communication according to the present invention includes: a first circuit unit including a first ground terminal and operating only when the first ground terminal is connected to a ground; a second circuit unit including a second ground terminal and operating only when the second ground terminal is connected to the ground; and a terminating resistance generating unit generating terminating resistance when one of the first ground terminal and the second ground terminal is not connected, and as a result, only one of the first circuit unit and the second circuit unit operates. | 2014-10-23 |
20140312928 | High-Speed Current Steering Logic Output Buffer - A current steering logic buffer for generating an output clock signal, comprises: a buffer for receiving an input clock signal; a current source; switches controlled by the buffer, wherein the switches connect the current source to outputs for generating the output clock signal; and a feedback loop for controlling the current source as a function of the outputs and a reference voltage. | 2014-10-23 |
20140312929 | Self-Recovering Bus Signal Detector - A detector circuit is disclosed that detects bus signal conditions. To detect a START condition, asynchronous sequential logic detects a first bus signal transition (e.g., from high to low) and a second bus signal (e.g., a high signal). The outputs of the asynchronous sequential logic are combined to produce a START signal that can be latched, so that the START signal can be used to wake up a system or for other purposes. To detect a STOP condition, asynchronous sequential logic is set by a transition (e.g., low to high) of the first bus signal and a second bus signal (e.g., a high signal), producing a STOP signal that can be used to reset the asynchronous sequential logic and the latch. | 2014-10-23 |
20140312930 | SEMICONDUCTOR DEVICE, SEMICONDUCTOR SYSTEM INCLUDING THE SEMICONDUCTOR DEVICE, AND METHOD FOR DRIVING THE SEMICONDUCTOR SYSTEM - A semiconductor device includes a plurality of pads, a plurality of data input/output units connected with the plurality of pads and enabled in response to a plurality of enable signals, and a group programming unit suitable for grouping the plurality of pads into a number of pad groups in response to a mode register set (MRS) code and group information, and generating a number of groups of enable signals corresponding to the number of pad groups, wherein a number of groups of the data input/output units are sequentially enabled in response to respective groups of the enable signals. | 2014-10-23 |
20140312931 | SYSTEM AND METHOD FOR STATIONARY FINITE IMPULSE RESPONSE FILTERS IN PROGRAMMABLE MICROELECTRONIC CIRCUITS - A Field Programmable Gate Array (FPGA) to implement channel equalization to mitigate group velocity dispersion in an optical system. In one embodiment, a mapping is loaded into the FPGA whereby the in-phase and quadrature components of the baseband sequence to be filtered are routed to accumulators to form various sums, where each sum is multiplied by a corresponding distinct filter tap coefficient value according to the mapping to form various products, and where the products are summed to provide the in-phase and quadrature components of the filtered output. | 2014-10-23 |
20140312932 | STORAGE DEVICE AND SEMICONDUCTOR DEVICE - A low-power storage device is provided. The storage device includes a first transistor, a second transistor, a logic element, and a semiconductor element. The second transistor controls supply of a first signal to a gate of the first transistor. When the potential of a second signal to be input is changed from a first potential into a second potential lower than the first potential, the logic element changes the potential of a first terminal of the first transistor from a third potential lower than the second potential into the first potential after the logic element changes the potential of the first terminal of the first transistor from the second potential into the third potential. The semiconductor element has a function of making a second terminal of the first transistor floating. The first transistor includes a channel formation region in an oxide semiconductor film. | 2014-10-23 |
20140312933 | LOW NOISE COMPARATOR FOR HIGH RESOLUTION ADC - A low noise comparator for a high resolution ADC is provided. The comparator includes: an inputter configured to receive a signal and amplify the signal; and an outputter configured to output a result of comparing the signal output from the inputter, wherein an inductor is connected to an input terminal of an input element of at least one of the inputter and the outputter. Accordingly, the comparator can satisfy the gain value and the noise performance at the same time by using the inductor which has no voltage headroom problem. | 2014-10-23 |
20140312934 | LOW-POWER MAGNETIC SLOPE DETECTING CIRCUIT - One embodiment of the present invention relates to a method and apparatus to perform a low power activation of a system by measuring the slope of a digital signal corresponding to a motion sensor measurement value. In one embodiment, a low power activation circuit is coupled to magnetic motion sensor configured to output a magnetic signal proportional to a measured magnetic field. The low power activation circuit may comprise a digital tracking circuit configured to provide a digital signal that tracks the magnetic field and a difference detector configured to detect a difference between a current digital signal and a prior digital signal stored in a digital storage means. If the detected difference is larger than a digital reference level, an activation signal is output to awaken a system from a sleep mode. | 2014-10-23 |
20140312935 | COMMON MODE VOLTAGE MULTIPLEXER - A circuit and a system that uses the circuit for connecting a plurality of input channels to a receiving device. The circuit includes a plurality of DMOS switches, each of which connects a respective one of the input channels to the receiving device in response to a respective control signal. The control signals are referenced to a ground signal. Each input channel includes a common mode voltage that is non-referenced to the ground signal. The circuit also includes a switch driver that generates the control signals such that the input channels are activated one at a time. | 2014-10-23 |
20140312936 | METHODS AND ARCHITECTURES FOR EXTENDED RANGE ARBITRARY RATIO DIVIDERS - One of the most important RF building blocks today is the frequency synthesizer, or more particularly the programmable frequency divider (divider). Such dividers preferably would support unlimited range with continuous division without incorrect divisions or loss of PLL lock. The inventors present multi-modulus dividers (MMDs) providing extended division range against the prior art and without incorrect divisions as the division ratio is switched back and forth across the boundary between two different ranges. Accordingly, the inventors present MMD frequency dividers without the drawbacks within the prior art. | 2014-10-23 |
20140312937 | Multi-Band Frequency Multiplier - A multi-band frequency multiplier configured to generate frequencies and multiplied frequencies in an integrated system. The multi-band frequency multiplier includes a multi-band multiplier core with a multiplier core differential amplifier configured to receive a multiplier input signal. A switchable load impedance connects to the multiplier core differential amplifier, and includes n multiplier sections. Each multiplier section includes a section impedance and a section switch. The multiplier core differential amplifier generates an output signal having a frequency substantially equal to k times the input frequency in a range of a selected one of n critical frequencies when a selected one of the section switches corresponding to the selected one of the n critical frequencies is triggered. | 2014-10-23 |
20140312938 | FREQUENCY MULTIPLIER - A frequency multiplier includes: a multiphase signal generator configured to generate multiphase signals in response to a source signal; a pulse generator configured to generate a plurality of pulse signals in response to the multiphase signals; and a synthesizer configured to generate a frequency multiplication signal in response to edges of the pulse signals. Each of the plurality of pulse signals is generated in response to a corresponding multiphase signal, and the frequency multiplication signal is obtained by multiplying a frequency of the source signal. | 2014-10-23 |
20140312939 | METHOD AND APPARATUS FOR REDUCING AUDIO BAND NOISE IN A PERIODIC WAVE SIGNAL - A triangular waveform generator includes a square waveform clock circuit and an integrating circuit. The integration circuit receives input from the square waveform clock circuit and generates a triangular waveform output. A feedback circuit is operatively connected to the integrating circuit to reduce the audio band noise content in the triangular waveform output. The feedback circuit acts as a DC balance without significant sacrifice in the linearity of the triangular waveform output. | 2014-10-23 |
20140312940 | SEMICONDUCTOR DEVICE WITH CLOCK-BASED SIGNAL INPUT CIRCUIT - A semiconductor device includes a signal input circuit suitable for synchronizing an input signal with a dock signal and receiving the dock signal as a power source when the input signal has a first phase. | 2014-10-23 |
20140312941 | COARSE LOCK DETECTOR - A coarse lock detector for a delayed locked loop (DLL) is disclosed. The coarse lock detector includes multiple detection cells. Each detection cell receives a delayed clock phase and an output of a previous detection cell as inputs. To increase time for the output of the previous detection cell to propagate, the detection cells are arranged in groups such that the output from the previous detection cell is generated by a detection cell which is more than one detection cell previous. | 2014-10-23 |
20140312942 | PHASE-LOCKED LOOP OUTPUTS WITH REDUCED REFERENCE SPURS AND NOISE - In some examples, a circuit is described. The circuit may include a voltage-controlled oscillator that may be configured to generate an output signal. The circuit may also include a control signal generation unit that may be configured to generate a control signal based on the output signal. The control signal generation unit may also be configured to provide the control signal to the voltage-controlled oscillator. The voltage-controlled oscillator and the control signal generation unit may be part of a phase-locked loop (PLL) included in the circuit. The circuit may also include a feed-forward network. The feed-forward network may be configured to provide a portion of the control signal to the voltage-controlled oscillator. The voltage-controlled oscillator may generate the output signal based on the control signal from the control signal generation unit and the portion of the control signal from the feed-forward network. | 2014-10-23 |
20140312943 | PHASE-LOCKED LOOP DEVICE WITH MANAGED TRANSITION TO RANDOM NOISE OPERATION MODE - A phase-locked loop device is configured to manage a transition from a relaxation-oscillation mode to a random noise operation mode. It is designed for progressively reducing proportional and integral coefficients that are implemented in a loop filter of the PLL device. Recovering the last values formerly used for the proportional and integral coefficients is also provided, in case the PLL lock state is lost. Such transition management may be combined with using a voltage-controlled oscillator within the PLL device, which has several control inputs. | 2014-10-23 |
20140312944 | CHARGE PUMP PHASE-LOCKED LOOP CIRCUITS - A charge pump phase-locked loop circuit includes an active loop filter, an adjustable reference voltage source, and a charge pump. The active loop filter includes an amplifier that has a negative input node, a positive input node, and an output node. The adjustable reference voltage source is coupled to the positive input node to provide an adjustable reference voltage. The charge pump is coupled to the negative input node to provide a current to or draw a current from the active loop filter in response to a signal from a phase detector. The charge pump includes a first current source coupled to a first voltage and a second current source electrically coupled to a second voltage, the second current source including a resistor. The second current source is configured such that a current provided by the second current source depends on a resistance value of the resistor and a difference between the reference voltage and the second voltage. | 2014-10-23 |
20140312945 | Delay Locked Loop - A delay locked loop, comprises: a phase detector, wherein the phase detector generates output signals as a function of a reference clock signal and a feedback clock signal; a charge pump, wherein the charge pump generates a charge pump voltage as a function of the output signals; a bias generation circuit, wherein the bias generation circuit generates biasing signals as a function of the charge pump voltage; and a delay chain, wherein the delay chain outputs one or more internal clock signals and the feedback clock signal as a function of the reference clock signal and the biasing signals. | 2014-10-23 |
20140312946 | Methods and Systems for Calibration of a Delay Locked Loop - A method for calibrating a delay locked loop (“DLL”) having a plurality of delay segments, comprises: determining segment delay values for the delay segments; calculating a full-cycle delay value for an input signal to the DLL; adjusting one or more of the segment delay values as a function of the full-cycle delay value to generate one or more adjusted delay values; and calculating weights for the delay segments as a function of the segment delay values, the full-cycle delay, and the one or more adjusted delay values, wherein the weights are used to calibrate the DLL. | 2014-10-23 |