12th week of 2010 patent applcation highlights part 10 |
Patent application number | Title | Published |
20100072911 | Control Circuit For Adjusting Backlight - A control circuit for adjusting a backlight color is provided. In accordance with a preferred embodiment, the control circuit comprises an input device, a control unit, a backlight, and a plurality of pulse-width modulation units. The input device receives a plurality of external messages to generate a corresponding plurality of control signals. The control unit has a plurality of pins, implements a plurality of calculations based on the plurality of control signals, and generates a plurality of light-adjusting signals, each of which has a respective pulse width. The backlight has a plurality of light sources for a color mixing. Each of the pulse-width modulation units is correspondingly coupled to each of the pins and to each of the light sources, and adjusts a light of the each light source based on the respective pulse width. | 2010-03-25 |
20100072912 | Side-Type Backlight Module and Operating Method Thereof - A side-type backlight module includes a light guide plate and a plurality of light emitting diode (LED) sources. The light guide plate includes a side. The LED sources are disposed on the side, in which two successive LED sources are spaced by a pitch. It is varied to arrange each pitch between two successive LED sources. Moreover, a method for operating the side-type backlight module is disclosed in the specification. | 2010-03-25 |
20100072913 | High pressure discharge lamp lighting device and luminaire using same - A high pressure discharge lamp lighting device includes a DC power source circuit; a power supply circuit for converting an output from the DC power source circuit into a square wave AC output to be supplied to a high pressure discharge lamp; a starting circuit for applying a high voltage output for lamp startup to the high pressure discharge lamp; a control circuit; and a half-wave discharge detection circuit for detecting a half-wave discharge. The detection circuit detects the half-wave discharge at an initial stage of the lamp startup and the control circuit controls the magnitude of a voltage of a square wave half period of one polarity having a load voltage of a larger magnitude and that of a square wave half period of the other polarity having a load voltage of a smaller magnitude to approximate to each other. | 2010-03-25 |
20100072914 | DIMMING CIRCUIT FOR DISCHARGING LAMP CAPABLE OF TURNING OFF UNDER A LOW POWER CONDITION - A dimming circuit includes a resonant unit, a rectification unit, a half-bridge output unit, a first switch device and a second switch device, and a selection unit. The rectification unit is connected to the resonant unit. The half-bridge output unit includes a first electric-controlled switch and a second electric-controlled switch in series. The first and second switch devices are connected to the first and second electric-controlled switches. The selection unit may turn on the first switch device and the second electric-controlled switch when a potential is rising that turns on the discharging lamp and turn off the second switch device and keep turning on the second switch device when the discharging lamp is lighting. The selection unit further turns on the second switch device to turn off the second electric-controlled switch for turning off the discharging lamp in a low power condition. | 2010-03-25 |
20100072915 | Boost driver circuit with fast discharging function - The present invention discloses a boost driver circuit which converts an input voltage to an output voltage and supplies it to a load, the boost driver circuit comprising: a power transistor electrically connected with a node between the input voltage and the output voltage; a pulse width modulation driver circuit for controlling the operation of the power transistor; an output node electrically connected with the output voltage; a feedback node electrically connected with the load; a low voltage transistor electrically connected with the feedback node; and a clamp and fast discharge circuit electrically connected with the feedback node for discharging the feedback node when the voltage at the feedback node is higher than a predetermined voltage. | 2010-03-25 |
20100072916 | TOUCH SENSOR DEVICE - Provided is a touch sensor device including: at least one terminal connected to at least one contact pad; at least one common terminal; at least one light emitter connected between the common terminal and the terminal; and a touch sensor and light-emission controller unit connected to the common terminal and the terminal, and when a touch is sensed by the contact pad, controlling a corresponding light emitter to emit light. | 2010-03-25 |
20100072917 | System for Control of Ballast Illumination in Step Dimming and Continuous Dimming Modes - A system for controlling ballast illumination includes providing power to a light ballast power stage, driving a ballast lamp to a pre-determined ballast lamp illumination in response to the power stage receiving power, and actuating a level switch to drive the ballast lamp from the pre-determined ballast lamp illumination to a first field-programmed ballast lamp illumination. | 2010-03-25 |
20100072918 | Circuit Arrangement and Method for Operating at Least One First and a Second Lamp - A circuit arrangement for operating at least one first and second lamp each provided with a first and second coil electrode includes a first and second terminal for the first coil electrode of the first lamp, a first and second terminal for the second coil electrode of the first lamp, a first and second terminal for the first coil electrode of the second lamp, a first and second terminal for the second coil electrode of the second lamp, at least one supply connection for supplying voltage to the respective first coil electrode of the at least one first and second lamp, and at least one preheating device for the respective first coil electrode of the at least one first and second lamp. The second terminal of the first coil electrode of the first lamp is coupled to the second terminal of the first coil electrode of the second lamp while the preheating device encompasses a first preheating inductor and a second preheating inductor. | 2010-03-25 |
20100072919 | LED LAMP WITH HIGH EFFICACY AND HIGH COLOR RENDERING AND MANUFACTURING METHOD THEREOF - A LED lamp and a manufacturing method thereof are disclosed. At least one blue LED chip can be used as an excitation light source. A number of red LED chips are arranged around the blue LED chip. The blue LED chip and red chips are covered with a packaging material with phosphor. The intensity of red light can be adjusted by a control circuit. Thus, the white LED lamps with high efficacy and high color rendering at different color temperatures can be achieved. | 2010-03-25 |
20100072920 | DRIVE SYSTEM FOR ILLUMINATION DEVICE - A drive system for an illumination device includes a plurality of LEDs; an extra load; an illumination setting unit, for providing an illumination parameter such as a work cycle; a power supply unit, for providing a DC current; a microprocessor, for receiving the illumination parameter and generating a plurality of drive signals and a compensation signal according to the received illumination parameter; a plurality of first drive units, for driving the LEDs to receive the DC current in the high-level cycle for illumination; and a second drive unit, for receiving the compensation signal and outputting the DC current to the extra load according to the compensation signal. | 2010-03-25 |
20100072921 | Lighting System Utilising RJ45 Patch Lead - A luminaire has an aluminium body with an opening extending longitudinally therethrough from a front face from which, in use, light is emitted, and a rear face to which, in use, a power coupler is connectable. A circuit board is mounted in the body proximate to the front face, which circuit board carries a plurality of LEDs. A power board carrying an RJ45 socket is mounted on the rear face of the body, the power board being electrically connected to the circuit board by a pair of wires. The wires are clipped into wire guides mounted in the body. A lens shroud mounts in the opening in the body in front of the circuit board and is secured in position by screws, the lens shroud having a plurality of cylindrical apertures formed therein corresponding in number and pattern to the number and pattern of LEDs on the circuit board such that each aperture aligns with one of said LEDs, shrouding its associated LED such that the light emitted therefrom is collimated. | 2010-03-25 |
20100072922 | ELECTRONIC CIRCUIT FOR DRIVING A DIODE LOAD - An electronic circuit includes circuit portions for identifying a largest voltage drop through one of a plurality of series connected diode strings and for controlling a boost switching regulator according to the largest voltage drop. The electronic circuit can sense an open circuit series connected diode string, which would otherwise have the largest voltage drop, and can disconnect that open circuit series connected diode string from control of the boost switching regulator. Another electronic circuit includes a current limiting circuit coupled to or within a boost switching regulator and configured to operate with a diode load. Another electronic circuit includes a pulse width modulation circuit configured to dim a series connected string of light emitting diodes. | 2010-03-25 |
20100072923 | ELECTRICAL CONNECTION BETWEEN AT LEAST TWO PARTS AND ELECTRICAL DEVICE WITH SUCH A CONNECTION - The invention relates to an electrical connection between two parts, one of which is a wire and the second is a sleeve, wherein the wire has a diameter DR, and wherein the sleeve has, at least sectionally, an inner diameter ID, and wherein DR is smaller than ID. The end of the wire leads into the hollow body, wherein the end of the wire has a means for securing a connection to the hollow body. | 2010-03-25 |
20100072924 | METHOD FOR CONTROLLING AC LINEAR MOTORS, DEVICE FOR DRIVING AC LINEAR MOTORS, AND SYSTEM OF AC LINEAR MOTORS - Provided is a method for controlling a plurality of AC linear motors of identical specifications which are connected each other and operated synchronously so that they appear to operate as a single linear motor having desired power. | 2010-03-25 |
20100072925 | ROTARY ELECTRIC MACHINE CONTROL SYSTEM - A control unit for a rotary electric machine control system includes a first current command module, a second current command module and a change module. The first current command module controls the rotary electric machine based on a maximum efficiency characteristic line. The second current command module controls the rotary electric machine based on an early switching characteristic line, which is set at a retard angle side relative to the maximum efficiency characteristic line with a predetermined phase difference. When a control mode is switched over to a rectangular wave voltage phase control mode from an overmodulation current control mode in accordance with an increase in torque, the change module changes the current command from the first current command module to the second command current module. | 2010-03-25 |
20100072946 | MOTOR-DRIVEN TRAVELLING BODY AND HIGH-SPEED CHARGE METHOD FOR MOTOR-DRIVEN TRAVELLING BODY - An electrically-driven mobile body which can be given a boosting charge with electric power supplied by a single power supply apparatus together with other electrically-driven mobile bodies having different charging conditions and which can cool a charging system thereof without any coolant from the outside, as well as a boosting charge method for an electrically-driven mobile body for the same purpose. | 2010-03-25 |
20100072947 | Multi-Cell Battery Pack Charge Balance Circuit - A multi-cell battery pack charge balance circuit is connected to a recharge-discharge circuit to charge battery cells. The charge balance circuit includes a first balance circuit, a second balance circuit and a protection circuit. The first balance circuit is connected to a first node of the recharge-discharge circuit. The first balance circuit includes a plurality of controlling units, each of the controlling units includes a switch element and a resistor element connected with the switch element. The second balance circuit is connected to a second node of the recharge-discharge circuit and the first balance circuit. The second balance circuit has a first and second branch. The first branch includes a switch element. The second branch includes a switch element and a resistor element connected with each other. The protection circuit has a plurality of controlling points. The controlling points connect with the corresponding switch elements of the first and second balance circuits. | 2010-03-25 |
20100072948 | CHARACTERISTIC TRACKING METHOD AND CIRCUIT FOR A BATTERY MODULE - A characteristic tracking method for a battery module including at least one battery is disclosed. A look-up table is provided according to a primary characteristic of the battery. It is determined whether a battery has satisfied a preset condition when the battery module is operated from a usage state to an idling state. The battery is measured to have obtained a first voltage and a real capacity when the battery satisfies the preset condition. The measured first voltage is utilized to locate a table capacity of the battery from the look-up table. The look-up table is updated according to the real capacity and the table capacity. A peripheral circuit of characteristic tracking method has been exhibited. | 2010-03-25 |
20100072949 | Charging/Discharging Control Unit for Lithium Secondary Battery - In a charging/discharging unit provided with: a lithium secondary battery, a voltage detecting sensor for detecting a voltage and a current detecting sensor; the charging/discharging control unit is further provided with a controller, and a discharging element for performing a constant voltage discharging operation of 3 V. A voltage, V | 2010-03-25 |
20100072950 | ASSEMBLED BATTERY SYSTEM - In an assembled battery system, parallel battery blocks are connected in series. Each of the battery blocks includes battery unit modules connected in parallel, and each of the modules includes a battery unit and a fuse connected in series. The battery block is provided with a common connection line connected to a fuse monitoring module, and MOS-FETs each having a gate, source and drain, wherein the fuse is connected between the gate and source, and the drain is connected to the connection line. The FET is turned on and a voltage is applied to the connection line through the FET from the battery unit, when the fuse is blown out. Thus, the fuse monitoring module can detects the blowout of the fuse, and a control module can turn off a control switch to stop charging/discharging of the assembled battery in accordance with the control signal from the fuse monitoring module. | 2010-03-25 |
20100072951 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY CHARGING METHOD, ELECTRONIC DEVICE, BATTERY PACK, AND CHARGING DEVICE - The present invention aims to quickly charge a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode. A method according to the present invention for charging a non-aqueous electrolyte secondary battery including a heat-resistant layer between a negative electrode and a positive electrode is provided with a step of performing pulse charge on the secondary battery, a step of detecting a change amount of a cell voltage associated with a change in the concentration polarization of the non-aqueous electrolyte as a polarization voltage, and a step of terminating the pulse charge when the polarization voltage increases to or above a predetermined threshold value. According to the present invention, it is possible to quickly charge the non-aqueous electrolyte secondary battery including the heat-resistant layer between the negative electrode and the positive electrode at such a borderline level as not to cause overcharge. | 2010-03-25 |
20100072952 | PORTABLE ELECTRONIC APPARATUS - To provide a structure to dissipate heat from an internal heating component efficiently for a miniaturized, thin portable electronic apparatus. The portable electronic apparatus comprises a housing | 2010-03-25 |
20100072953 | Electrically-driven vehicle and charge control system - An electrically-driven vehicle | 2010-03-25 |
20100072954 | Battery charging time optimization system - A system for optimizing battery pack charging is provided. In this system, during charging the coupling of auxiliary systems (e.g., battery cooling systems) to the external power source are delayed so that the battery pack charge rate may be optimized, limited only by the available power. Once surplus power is available, for example as the requirements of the charging system decrease, the auxiliary system or systems may be coupled to the external power source without degrading the performance of the charging system. | 2010-03-25 |
20100072955 | Method of Estimating Surface Ion Density - The present teachings are directed toward machine implemented method for estimating the ion density of the surface of either positive or negative electrode of a battery. The machine-implemented method includes dividing each electrode into N layers of active electrode material, determining the ion density variable for each one of the N layers of the active electrode, and determining the ion density of the electrode surface. In the presently disclosed method, the ion density variable of each of the N layers of the active electrode changes as a function of the difference between the respective ion density variables of adjacent N layers, and the ion density of the electrode surface changes as a function of the battery current and the difference between the respective ion density variables of adjacent N layers. The present method is particularly applicable to Li-ion batteries. | 2010-03-25 |
20100072956 | Low Power and Accurate Adapter-Current Detection Scheme for Dynamic Load Balancing - A charger provides a charging current to an information handling system battery by measuring current provided from an external power source using a Hall sensor. The Hall sensor is integrated into an integrated circuit of the charger to measure current provided by an external power source and output a voltage proportional to the measured current. The charger analyzes the external power source current relative to an available current to determine the charging current. The Hall sensor provides the total current from the charger with minimal resistance to reduce power consumption at the charger. | 2010-03-25 |
20100072957 | Nanotube-based logic driver circuits - Nanotube based logic driver circuits. These include pull-up driver circuits, push-pull driver circuits, tristate driver circuits, among others. Under one embodiment, an off-chip driver circuit includes a differential input having first and second signal links, each coupled to a respective one of two differential, on-chip signals. At least one output link is connectable to an off-chip impedance load, and at least one switching element has an input node, an output node, a nanotube channel element, and a control structure disposed in relation to the nanotube channel element to controllably form and unform an electrically conductive channel between said input node and said output node. The input node is coupled to a reference signal and the control structure is coupled to the first and second signal links. The output node is coupled to the output link, and the channel element is sized to carry sufficient current to drive said off-chip impedance load. | 2010-03-25 |
20100072958 | POWER GENERATION CONTROL APPARATUS OF A ROTATING ELECTRICAL MACHINE FOR A VEHICLE - A power generation control apparatus of a rotating electrical machine for a vehicle is obtained which achieves load response control in a plurality of electric power generation control modes even if a generation voltage final target value rapidly changes. The apparatus includes a power control unit | 2010-03-25 |
20100072959 | Modulation Control of Power Generation System - Methods and apparatuses are disclosed for producing current with a desired output frequency from one or more fixed or variable speed alternators by varying a saturation level of a portion of the alternator(s) based on a output frequency desired, and preferably then rectifying the output to produce a desired electrical output which may be provided as direct current or alternating current to a suitable load. | 2010-03-25 |
20100072960 | SWITCHING TECHNIQUE FOR EFFICIENT ELECTRICAL POWER UTILIZATION - An active phase angle correction circuit which corrects the phase angle between voltage and current in an AC supply varies the capacitive loading of the AC mains to reduce the phase angle to near zero by detecting the phase angle, reactively and resistively loading the AC mains in steps until the phase angle is at a desired level close to zero, and then maintaining or incrementally adjusting the loading. The applied loading may be continuously switched in and out at a rate much greater than the mains supply frequency. | 2010-03-25 |
20100072961 | INTERPOSER INCLUDING VOLTAGE REGULATOR AND METHOD THEREFOR - A device that includes an electronic device referred to as an integrated circuit interposer is disclosed. The integrated circuit includes a voltage regulator module. The interposer is attached to an electronic device, such as another integrated circuit, and facilitates control and distribution of power to the electronic device. The integrated circuit interposer can also conduct signaling between the attached electronic device and another electronic device. The voltage regulator module at the integrated circuit interposer can be configured to provide a voltage reference signal to the attached electronic device. Generation of the voltage reference signal by the integrated circuit interposer can be enabled or disabled and the value of the voltage reference signal can be adjusted, depending on operating requirements of the electronic device. | 2010-03-25 |
20100072962 | DC/DC SWITCHED-MODE CONVERTER WITH A PERIOD BIFURCATION CONTROL MECHANISM - A DC-DC switched mode converter includes a voltage conversion circuit, a switch control circuit, a duty cycle detector, a control signal generator, and a control signal selector. The switch control circuit generates a first control signal. The duty cycle detector detects a duty cycle of the first control signal so as to generate a detection signal. The control signal generator generates a second control signal. The control signal selector outputs the first control signal or the second control signal for controlling the voltage conversion circuit according to the detection signal. | 2010-03-25 |
20100072963 | Power management chip with dual function pin - The present invention discloses a power management chip with a dual function pin, the power management chip outputting pulse-width-modulation signals to control the switching of an up-gate transistor and a low-gate transistor for converting an input voltage to an output voltage, the up-gate and low-gate transistors being electrically connected to a node, the power management chip comprising: a dual function pin for electrically connecting with the input voltage or the node; a voltage sensing circuit electrically connected with the dual function pin for detecting the level of the input voltage; and a clock detection circuit electrically connected with the dual function pin for determining whether the signal received by the dual function pin is an oscillation signal. | 2010-03-25 |
20100072964 | VOLTAGE REGULATOR INCLUDING CONSTANT LOOP GAIN CONTROL - A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage. | 2010-03-25 |
20100072965 | OUTPUT VOLTAGE FEEDBACK DEVICE FOR BEING USED IN A POWER SUPPLYING APPARATUS AND POWER SUPPLYING APPARATUS PROVIDED WITH THE SAME - The present invention relates to an output voltage feedback device for being used in a power supplying apparatus and a power supplying apparatus provided with the same. The power supplying apparatus provides electrical power via a wire set which includes a high level wire and a low level wire. The output voltage feedback device is provided with a voltage sensor and feedback unit for determining the voltage difference between the high level wire and the low level wire and the resultant measurement is transmitted back to the converter main body via the wire set in the form of a distinct electrical signal. The output voltage feedback device according to the invention can accurately determine the output voltage from the power supplying apparatus and, in case of occurring an output fault, interrupt the supply of power or enable an automatic compensation to reduce damage. | 2010-03-25 |
20100072976 | SENSING ELEMENT, MANUFACTURING METHOD THEREOF, AND BIOLOGICAL DETECTION SYSTEM EMPLOYING SUCH SENSING ELEMENT - A sensing element includes a field-effect transistor (FET) with an ultra-thin channel, a reference electrode, a first and a second passivation layer, and a microchannel. The first and the second passivation layer enclose a first and a second portion of the FET, respectively. The microchannel is bonded to the first and the second passivation layer, such that the microchannel is extended across the channel of the ultra-thin channel FET. The ultra-thin channel has a chemically or physically modified surface. When an analyte to be tested passes through the microchannel and is in contact with the modified surface of the ultra-thin channel, it results in changes in the conductance of the ultra-thin channel FET. Trace detection may be conducted on the analyte by observing changes in the conductance. A method for manufacturing the sensing element and a biological detection system employing the sensing element are also provided. | 2010-03-25 |
20100072977 | ELECTRONIC DEVICE AND TEST METHOD OF ELECTRONIC DEVICE - An electronic device includes a receiver receiving a signal, a driver outputting a signal, and at least one of an amplitude measuring device having an amplitude detector connected to an input end of the receiver and a jitter measuring device having a phase detector connected to an output end of the receiver. An output end of the driver and an input end of the receiver are connected to measure at least one of the amplitude and jitter of the driver output. | 2010-03-25 |
20100072978 | SYNCHROPHASOR MEASURING DEVICE AND INTER-BUS-LINE PHASE ANGLE DIFFERENCE MEASUREMENT UNIT USING THE SAME - Voltage instantaneous value time-series estimation data and a present-time voltage estimation value are calculated by using an actually-measured frequency and voltage instantaneous value time-series data according to a least square method. A present-time voltage effective value is determined by using the calculated voltage instantaneous value time-series estimation data, and a present-time synchrophasor, a voltage distortion degree and an inter-bus-line synchrophasor phase angle difference are determined by using the present-time voltage effective value and the present-time voltage estimation value. | 2010-03-25 |
20100072979 | METHOD FOR TESTING A VARIABLE DIGITAL DELAY LINE AND A DEVICE HAVING VARIABLE DIGITAL DELAY LINE TESTING CAPABILITIES - A device and a method for testing a variable digital delay line that includes multiple taps. The method includes providing, an input signal to the variable digital delay line and finding, for each tap out of a group of tested taps of the variable digital delay line, a variable delay unit configuration that provides a delay that is closest to a delay introduced by the tap; wherein the variable digital delay line and the variable delay unit belong to the same integrated circuit. | 2010-03-25 |
20100072980 | METHOD AND APPARATUS FOR CURRENT MEASUREMENT IN AN ELECTRICAL NETWORK, IN PARTICULAR A MULTIPHASE ELECTRICAL NETWORK - The invention relates to a method for current measurement in an in particular multiphase electrical system, in which an electrical load is energized as desired by at least one circuit element and a control unit produces drive signals which act on the at least one circuit element in order to achieve the desired energization of the load. The invention provides that clock patterns of the drive signals are associated with measurement windows for current measurement, in particular for measuring phase currents, and clock patterns are temporally offset in order to obtain measurement windows with a sufficient temporal length. A minimum temporal shift is the sum of a minimum dead time of the circuit element, a minimum settling time of the measuring amplifier circuit, and a minimum sampling time of the analogue-to-digital converter. The invention furthermore provides that the clock patterns are selected taking into consideration a phase selection for the current measurement. Provision may be made for the clock patterns to be selected taking into consideration the instantaneous rotary angle position of the phase vector. In addition, a corresponding apparatus is specified. | 2010-03-25 |
20100072981 | VOLTAGE MEASUREMENT INSTRUMENT AND METHOD HAVING IMPROVED AUTOMATIC MODE OPERATION - An AC/DC voltage measuring instrument is operable in a DC mode, an AC mode, or an automatic mode. In the DC mode, an input terminal is coupled directly to an analog-to-digital converter, which generates a digital output signal indicative of the amplitude of the received signal. In the AC mode, the input terminal is coupled to an RMS circuit through a capacitor. The RMS circuit generates an output signal having an amplitude indicative of the RMS amplitude of the received signal, and this output signal is coupled to the analog-to-digital converter. In the automatic mode, the input terminal is also coupled to the RMS circuit, but it is coupled to the RMS circuit without being coupled through the capacitor. The input terminal is coupled to the RMS circuit through an amplifier, and a calibration procedure is used to compensate for any offset of the amplifier. | 2010-03-25 |
20100072982 | TEST EQUIPMENT AND TEST SYSTEM USING THE SAME - A test equipment to test power over Ethernet (PoE) function of an Ethernet device comprises a first connector, a second connector, a data signal transmission circuit, a first polarity determination circuit, a second polarity determination circuit and a notification circuit. The first connector receives and transmits data signals and power signals transmitted by the Ethernet device. The data signal transmission circuit transmits the data signals to the second connector and outputs the power signals. The first and second polarity determination circuits receive and output the power signals to the notification circuit. The notification circuit receives the power signals and consequently generates a notice to indicate the PoE function of the Ethernet device is normal. | 2010-03-25 |
20100072983 | HUB MOUNTABLE SPEED SENSING DEVICE - A hub mountable speed sensing device comprising a housing, a metallic tubular insert adapted to be press-fitted with respect to said housing, a stationary speed sensing probe comprising a magnetic conversion device having a bias magnet and adapted to be inserted into the housing in close proximity to a rotating member having sensing teeth along its axis made of ferrous material, a locking arrangement provided to prevent the said detection probe from dislodging from said housing, and wherein the said bias magnet is adapted to generate magnetic flux which is interrupted by the rotor tooth while rotating and said magnetic conversion device providing for speed sensing based on the change in flux density. | 2010-03-25 |
20100072984 | INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A REGION OF ACTION OF AN EXAMINATION OBJECT - A method and an arrangement for influencing and/or detecting magnetic particles in a region of action of an examination object is disclosed, which method comprises the steps of: generating a magnetic selection field by means of selection means, the magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strength are formed in the region of action, changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field generated by drive means so that the magnetization of the magnetic particles change locally, acquiring signals by means of receiving means, which signals depend on the magnetization in the region of action, which magnetization is influenced by the change in the position in space of the first and second sub-zone, wherein the selection means and/or the drive means and/or the receiving means are provided at least partly movable relative to the examination object during the acquisition and/or the change in the position in space of the two sub-zones in the region of action. | 2010-03-25 |
20100072985 | MAGNETIC RESONANCE SYSTEM WITH ORIENTATION DETECTION OF TOOLS - A magnetic resonance system has a basic field magnet that generates a static basic magnetic field that is essentially homogeneous within an examination volume, the basic magnetic field having a basic direction. At least one tool can be inserted into the examination volume and can be removed from it. The at least one tool has a number of Hall elements. Each Hall element of the at least one tool is fashioned such that a binary signal emitted by said Hall element characterizes whether the basic magnetic field has a component that, relative to a respective element direction of the respective Hall element, is greater than a threshold. The respective element directions of the respective Hall elements differ from one another in pairs. The Hall elements of the at least one tool communicate in terms of data with an evaluation device of the magnetic resonance system to transmit the binary signal that it emits. The evaluation device uses the transmitted binary signal to determine an orientation of the at least one tool relative to the basic direction and takes additional measures depending on this orientation. | 2010-03-25 |
20100072996 | Methods And Systems For Magnetically Resonating Both A Subject And A Substance Administered To The Subject - Embodiments of the current invention include a magnetic resonance system including a magnetic resonance device and a substance to be introduced to a subject in accordance with a treatment. Further embodiments of the current invention include a method of using a magnetic resonance system including administering a substance to a subject and providing magnetic resonance to the subject. | 2010-03-25 |
20100072997 | MAGNETIC RESONANCE SYSTEM WITH TRANSMISSION OF A DIGITIZED MAGNETIC RESONANCE SIGNAL ACROSS AN AIR GAP - A magnetic resonance system has a patient receptacle and a base body. The patient receptacle has a subframe and a patient bed supported thereon so as to move a patient thereon through the base body. The base body has a basic field magnet system, a gradient system and an RF system that are operable to obtain an analog magnetic resonance signal from the patient. The patient receptacle has a signal conversion device composed of an A/D converter, a modulator, and a transmitter. The base body has a signal conversion device composed of a receiver and a demodulator. The A/D converter receives the magnetic resonance signal and digitizes it. The modulator modulates a carrier signal with the digitized magnetic resonance signal. The transmitter transmits the modulated carrier signal via an air gap to the receive. The receiver receives the transmitted carrier signal. The demodulator extracts the digitized magnetic resonance signal from the received carrier signal by demodulation and supplies it to an evaluation device for continuing evaluation. | 2010-03-25 |
20100072998 | MAGNETIC RESONANCE METHOD AND DEVICE TO AUTOMATICALLY DIFFERENTIATE WATER-DOMINATED AND FAT-DOMINATED TISSUE - In a magnetic resonance method and system to automatically differentiate whether a pixel of an MR image acquired with magnetic resonance system originated from fat-dominated tissue or water-dominated tissue, only one spin echo-based magnetic resonance signal per pixel is acquired at a point in time at which the phase of a magnetic resonance signal of aqueous tissue has a phase opposite to the phase of a magnetic resonance signal of fat tissue. The phase angle of the pixel is then calculated, a base phase at the pixel depending on the magnetic resonance system is determined, and a corrected phase angle of the pixel is determined from the phase angle and the base phase. Whether the pixel originated from fat-dominated tissue or water-dominated tissue is then determined using the corrected phase angle of the pixel. | 2010-03-25 |
20100072999 | Device and method for positioning a small animal for an MRI measurement - A device used in performing imaging magnetic resonance measurements (=MRI) in a Region of Interest (ROI) ( | 2010-03-25 |
20100073000 | RADIO FREQUENCY COIL APPARATUS AND METHODS - Radio frequency (RF) coil configurations and methods are disclosed. Non-magnetic elements may be used in combination with an RF coil. The non-magnetic elements may be metal. The non-magnetic metal elements may be designed and configured to facilitate tuning of an RF coil, and to modify a magnetic field produced by an RF coil. The non-magnetic metal elements may also be used in connection with a RF receiver coil to control the region from which the receiver coil detects signals. The configurations and methods described may be used in various RF applications, including magnetic resonance imaging (MRI). | 2010-03-25 |
20100073001 | SYSTEM AND METHOD FOR DETERMINING SUB SURFACE GEOLOGICAL FEATURES AT AN EXISTING OIL WELL SITE - An array of electromagnetic receiver antennae is arranged and operated in conjunction with the operation of an array of far field electromagnetic transmitter antennae for mapping subsurface features of an existing well site reservoir. Mapping is performed according to the relative intensities, frequencies, phase shifts, and/or other reflected signal parameters of the reflections received by the receiver antennae (relative to the transmit signals) associated with a given location or target area within a reservoir so as to aid in determining the geological features about an oil deposit for an existing oil well. | 2010-03-25 |
20100073002 | CIRCUIT INTERRUPTER WITH CONTINUOUS SELF-TESTING FEATURE - A circuit interrupter includes a current transformer, phase conductor and neutral conductor. The phase conductor and the neutral conductor are each configured to pass through the transformer from line side to load side that are defined by the current transformer. The circuit interrupter generates a continuous test current by continuous current imbalance established between the load side of the phase conductor and the line side of the neutral conductor, or between the line side of the phase conductor and the load side of the neutral conductor. A continuous test conductor may be coupled correspondingly to establish the current imbalance. Alternatively, an integrated circuit coupled correspondingly receives power and is energized by a quiescent current thereby. The current imbalance is established by the quiescent current. The current transformer detects the quiescent current as the continuous test current. Corresponding methods are also disclosed. | 2010-03-25 |
20100073003 | BATTERY INFORMATION ACQUIRING APPARATUS - A battery information acquiring apparatus includes a voltage acquiring unit which acquires an inter-terminal voltage of the battery cell; a battery information acquiring circuit which acquires battery information of the battery cell with the acquired voltage being supplied as a first power supply voltage and; a radio circuit which transmits a signal of the battery information to the management unit via the antenna with the acquired voltage being supplied as a second power supply voltage and; a rectification circuit which receives a radio signal from the management unit via the antenna, rectify the received radio signal and generate a DC voltage; and a control circuit which controls supply of the first and second power supply voltages to the battery information acquiring circuit and the radio circuit wherein the control circuit operates with the generated DC voltage being supplied as a third power supply voltage. | 2010-03-25 |
20100073004 | Voltage detecting circuit - A voltage detecting circuit includes a switch group that selects any one of a plurality of battery cells connected in series, a sampling capacitor that maintains a potential difference between a positive electrode terminal and a negative electrode terminal of a battery cell selected by the switch group, a measuring part that outputs a detected voltage value signal corresponding to the potential difference between ends of the sampling capacitor, a transfer switch that transfers, to the measuring part, the potential difference caused between the ends of the sampling capacitor, a correction capacitor provided in parallel to input terminals of the measuring part, and between the transfer switch and the measuring part, and a discharge switch provided in parallel to the correction capacitor, and controlled so that a switching condition of the discharge switch is mutually exclusive with that of the transfer switch. | 2010-03-25 |
20100073005 | CAR BATTERY SYSTEM - The car battery system of the present invention is provided with a battery block | 2010-03-25 |
20100073006 | Apparatus and Method of Charge Induction for Cable to System Testing - The present invention is directed to an apparatus that minimizes the effects of hand capacitance on a cable, the apparatus also being configured to generate and induce a charge, wherein the charge couples a capacitance to the cable, the capacitance matching a typical capacitance that a hand couples to a cable. The present invention is also generally directed to a method of performing a cable to electronic system electrostatic discharge immunity test. | 2010-03-25 |
20100073007 | WIRELESS PORTABLE AUTOMATED HARNESS SCANNER SYSTEM AND METHOD THEREFOR - The present document describes an assembly for interfacing an existing harness connector of an installed wiring harness to a test module, the assembly comprising: a harness-specific connector for connecting to the existing harness connector; a test box connector module connected to the harness-specific connector and for connecting to a test module, the test box connector module comprising a key which is unique to the test box connector module and which is used to identify the test box connector module when connected to the test module. There is described a method for identifying a test box connector module used in testing an installed wiring harness comprising an existing harness connector, the method comprising: connecting the test box connector module to a test module; detecting a key which is unique to the test box connector module thereby determining the identity of the test box connector module; sending the identity of the test box connector module to a user interface. | 2010-03-25 |
20100073008 | Partial Discharge Coupler for Application on High Voltage Generator Bus Works - A partial discharge coupler for detecting partial discharges in a conductor includes a frequency dependent network, a differential amplifier and a frequency selective coupling component. The frequency dependent network includes a first filter component, a fuse component and a load component, typically coupled together in series with reference to a first ground. The first filter component filters the high voltage, low frequency alternating current signal carried by the conductor from the load component and passes high frequency partial discharge pulse signals to the load component. The frequency selective coupling component couples in series between the differential amplifier and the load component. The output of the differential amplifier is configured to provide an output that is isolated from the ground connection for communicating detected partial discharge signals to partial discharge test equipment. | 2010-03-25 |
20100073009 | Test circuit adapted in a display panel of an electronic device - A test circuit adapted in a display panel of an electronic device is provided. The test circuit is to test the pixel array function of the display panel, wherein the test circuit comprises: a plurality of test signal lines, a plurality of test signal transmitters, a plurality of gate lines and at least one static electricity protection device. The test signal lines receive a plurality of corresponding test signals respectively. The test signal transmitters comprises a plurality test signal transmitter groups comprising at least one transmitter, wherein each transmitter group corresponds to a test signal line and connects the test signal line and the pixel array. Each gate line connects to the gate of the at least one transmitter. The static electricity protection device is placed between two of the gate lines. | 2010-03-25 |
20100073010 | FLASHOVER ANALYSIS TOOL - According to the present invention, there is provided a method to minimize human intervention during decision making process while controlling the electrical power system by identifying the initiating element that cause a tripping of the transmission overhead lines and capable of identifying the potential future protection system failures that can initiate a cascading of tripping or total national blackout. A method of producing flashover analysis signal as a protection system analysis comprising processing a neutral current, three phase current profile, three phase voltage profile, and a plurality of digital signal of a transmission line using an artificial neural network to calculate pickup time, reset time, DEF confirmation time or total fault clearance time. A method of producing flashover analysis signal comprising as a flashover signature analysis to identify the cause of the flashover as a current transformer explosion, tree encroachment, crane, lightning strike or polluted insulator. | 2010-03-25 |
20100073011 | LIGHT SOAKING SYSTEM AND TEST METHOD FOR SOLAR CELLS - A method and apparatus for exposing a solar device to simulated environmental conditions is described. In one embodiment, a chamber is described. The chamber includes a frame defining a partial enclosure having an interior volume, the frame comprising a door selectively sealing an opening in the frame, a plurality of lighting devices coupled to the enclosure interior of an open wall, each of the plurality of lighting devices being positioned to direct light toward an upper surface of a platen disposed in the interior area, and a plurality of fan units positioned in an opening formed in a sidewall of the frame, each of the plurality of fan units positioned to direct ambient air flow from the outside of the enclosure toward the platen and between the plurality of lighting devices to exit through the open wall. | 2010-03-25 |
20100073012 | METHOD FOR DETECTING WATER LEAKAGE OF COIL AND WATER LEAKAGE DETECTOR APPLICABLE TO THIS METHOD - According to the present invention, a method of detecting water leakage in a coil, which determines whether or not cooling water leaks into an insulation layer, the water being supplied to a conductor of a coil covered with the insulation layer, including: applying an AC voltage to the conductor; bringing a surface electrode device into pressure contact with the insulation layer; grounding the surface electrode device through an impedance; measuring a potential of the surface electrode device; and determining that the cooling water leaks from the conductor into the insulation layer when a measured potential is higher than a potential of a normal coil | 2010-03-25 |
20100073013 | VALIDATION OF ARC FLASH DETECTION SYSTEMS - An arc flash validation unit may generate stimulus to be received by an arc flash detection unit (AFDU) and observe the response of the AFDU thereto. The response of the AFDU to the stimulus may allow for validation of the AFDU (e.g., validation that the AFDU is operating as expected). In addition, the arc flash validation unit may determine the response time of the AFDU. Different types of stimulus may be provided to the AFDU, including electro-optical (EO) stimulus (e.g., visible light), current stimulus, and the like. Results of the validation may be displayed on a human-machine interface, which may display an estimate of the total energy that would be released in an actual arc flash event. The estimate may be used to define appropriate safety parameters for the equipment monitored by the AFDU. | 2010-03-25 |
20100073014 | Time-Domain Reflectometer - The present invention provides a time domain reflectometer for testing an electrical cable. The time domain reflectometer includes a test signal generator, at least one line feed resistor, connected between the test signal generator and a pair of terminals, for connection to the ends of the electrical cable under test, and a signal processor, connected to the terminals, to receive a line signal including a reflection of a test signal transmitted into the cable under test. The signal processor is programmed to filter the line signal to enhance a portion of the signal indicative of any fault on the cable by balancing the signal according to the electrical characteristics of a normal cable of the same type as the cable under test by applying a filter function, and acquiring at least one estimate of the input admittance of the transmission line from known or estimated electrical characteristics of the cable under test. | 2010-03-25 |
20100073015 | POWER GENERATION CAPACITY INDICATOR - Improved portable power sources such as batteries, fuel cells, power generators and the like can include structure or apparatus that are adapted to provide an indication of the power capacity remaining within the portable power source. In some cases, these power sources may be configured to accommodate remote communication regarding their remaining power capacity. | 2010-03-25 |
20100073036 | HIGH-SPEED LOW-VOLTAGE DIFFERENTIAL SIGNALING SYSTEM - A system and a method for communicating data at a rate exceeding about a gigabit per second is described. The system may include circuitry and a current-sourcing module. The circuitry may include an output couplable to a load. The circuitry may output from the output a low voltage differential signal having a first current that drives the load from a first voltage at a first time to a second voltage at a second time. The current-sourcing module may apply a second current to the output at a third time, which occurs | 2010-03-25 |
20100073037 | OUTPUT IMPEDANCE CONTROL CIRCUIT - An external resistive element is used to provide a substantially constant output impedance for multiple drivers disposed on an IC. The drivers may operate at different supply voltages. Accordingly, the parameters which depend on the driver output impedance, such as rise/fall time, propagation delay, and the like are made substantially constant and independent of the semiconductor process variations, operating supply voltages, and the temperature. The substantially constant output impedance maintains the stability of the crossing point of a true and its complementary clock signal in high-speed applications, such as in the drivers used in charge-coupled devices. A number of feedback loops are used together with the external resistive element to achieve the substantially constant output impedance. The feedback loops compensate for the ageing effects, temperature gradients and changes in the operating conditions of the IC. | 2010-03-25 |
20100073038 | Method and apparatus for reducing transmitter AC-coupling droop - As part of a transmitter and receiver system a droop compensator is provided between the channel isolation device and the driver system to compensate for reduced transition densities. The droop compensator is configured to improve power transfer to the channel in response to reductions in transition density without affecting power transfer during periods of high transition density. The droop compensator creates an impedance mismatch between the matching circuit and driver in relation to the line impedance. The droop compensator may comprise passive elements, such as capacitors, inductors, or resistor, or active elements including transistors or power control modules. The droop compensator may be configured to operate with transformer line couplers or capacitor line couplers, and either current drivers or voltage drivers. | 2010-03-25 |
20100073039 | H-Bridge circuit - An H-bridge circuit includes a lower-arm field-effect transistor and a current supplying element that turns on when the drain of the lower-arm field-effect transistor is negatively biased due to regenerative current. When turned on, the current supplying element conducts current from the source to the drain of the lower-arm field-effect transistor, in parallel with a parasitic diode inherent in the lower-arm field effect transistor. The current supplying element competes with other parasitic elements that conduct current from peripheral circuitry to the drain of the lower-arm field-effect transistor, thereby reducing the amount of such current drawn through the peripheral circuitry and lessening the impact of the regenerative current on the peripheral circuits. | 2010-03-25 |
20100073040 | FREQUENCY DIVIDER USING LATCH STRUCTURE - There is provided a frequency divider using a latch structure including: a first latch sampling and latching an input signal in response to a first clock signal and a second clock signal having an inverse phase with respect to the first clock signal; a second latch toggled with the first latch, the second latch sampling and latching the input signal in response to the first and second clock signals; a bias adjustor generating a sampling bias current and a latching bias current to supply to the first and second latches, respectively and adjusting a relative ratio between the sampling bias current and the latching bias current to vary a minimum power point oscillating frequency of the first and second latches. | 2010-03-25 |
20100073041 | METHOD AND APPARATUS TO SELECT A PARAMETER/MODE BASED ON A MEASUREMENT DURING AN INITIALIZATION PERIOD - Techniques are disclosed to select functional parameters and/or operating modes of a circuit based on a measurement during an initialization period. In one aspect an integrated circuit includes a threshold detection circuit coupled to measure during an initialization period of the integrated circuit a signal from a first external circuit comprising one or more components coupled to a first external terminal of the integrated circuit. A selection circuit is coupled to the threshold detection circuit to select a parameter/mode of the integrated circuit in response to the signal from the first external circuit during the initialization period of the integrated circuit. The first external terminal is further coupled to one or more additional external circuits, each of which comprising one or more components. The one or more additional external circuits are coupled to provide one or more signals at the first external terminal to be used by the integrated circuit during normal operation at times other than the initialization period to provide at least one additional function for the integrated circuit after the initialization period of the integrated circuit is complete. | 2010-03-25 |
20100073042 | SEMICONDUCTOR MEMORY APPARATUS - A semiconductor memory apparatus includes a initialization signal generating unit configured to vary a voltage level of an external voltage in response to a detection signal, the external voltage enables a power-up signal, an internal voltage generating unit configured to produce an internal voltage, the internal voltage generating unit is initialized by the power-up signal, and a detection signal generating unit configured to produce the detection signal in response to a voltage level of the internal voltage. | 2010-03-25 |
20100073043 | NETWORK AND METHOD FOR SETTING A TIME-BASE OF A NODE IN THE NETWORK - A data communication network may, include a first sub-network and a second sub-network. The first sub-network may include two or more two master clocks, and a synchronisation system connected to the master clocks. The synchronisation system may, for determine a time-base for the master clocks and control the master clocks based on the determined time-base. The first sub-network may include one or more slave synchronisation data source for generating slave clock synchronisation data derived from time information of the master clocks. The second sub-network may include one or more slave clocks and a slave clock time-base controller connected to the slave synchronisation data source. The time-base controller may receive the slave clock synchronisation data and control one or more of the one or more slave clocks in accordance with the slave clock synchronisation data. | 2010-03-25 |
20100073044 | SYNCHRONIZING TIMING DOMAINS BASED ON STATE VARIABLES - Embodiments of a synchronization circuit, a method for synchronizing clock signals, and electronic devices that include the synchronization circuit or a computer-program product (e.g., software) with instructions for operations in the method are described. This synchronization circuit synchronizes clock signals in different timing domains using state variables. In particular, the synchronization circuit generates a synchronization acquisition curve based on a temporal history of state-variable differences between the clock signals. Next, the synchronization circuit synchronizes the clock signals (without a discontinuous temporal transient in one or more state variables of a dependent one of the clock signals) based on the sum of the synchronization acquisition curve and the state-variable differences between the clock signals. This state variable may include: a phase of the dependent clock signal, a frequency of the dependent clock signal, and/or a rate of change of the frequency of the dependent clock signal. | 2010-03-25 |
20100073045 | FREQUENCY DETECTION CIRCUIT AND DETECTION METHOD FOR CLOCK DATA RECOVERY CIRCUIT - A frequency detection circuit and a detection method thereof suitable for a clock data recovery (CDR) circuit are provided. The frequency detection circuit includes a phase detector, a first delayer, a frequency detector, and a logic circuit. The phase detector samples a data signal according to a first clock signal provided by the CDR circuit and provides a phase instruction signal according to the sampling. The first delayer delays the first clock signal to obtain a second clock signal. The frequency detector samples the data signal according to the second clock signal and provides a frequency instruction signal according to the sampling. The logic circuit generates a clock instruction signal according to the phase instruction signal and the frequency instruction signal. The CDR circuit adjusts the frequency of the first clock signal according to the status of the clock instruction signal. | 2010-03-25 |
20100073046 | METHOD AND SYSTEM FOR A FAST-SWITCHING PHASE-LOCKED LOOP USING A DIRECT DIGITAL FREQUENCY SYNTHESIZER - Aspects of a method and system for a fast-switching Phase-Locked Loop using a Direct Digital Frequency synthesizer may include generating a second signal from a first signal by: translating an inphase component of said first signal in frequency via a filtered fast-switching oscillating signal generated using at least a direct digital frequency synthesizer (DDFS), and translating a corresponding quadrature component of said first signal in frequency via a phase-shifted version of said generated filtered fast-switching oscillating signal. The inphase and quadrature components of the first signal may be multiplied with the filtered fast-switching oscillating signal and a phase-shifted version of the filtered fast-switching oscillating signal, respectively. The filtered fast-switching oscillating signal may be obtained by removing at least one frequency-sum term of the fast-switching oscillating signal, where the fast-switching signal oscillating signal may be generated from a signal generated by the DDFS that may be multiplied with an oscillating reference signal. | 2010-03-25 |
20100073047 | Apparatus for Data Recovery in a Synchronous Chip-to-Chip System - An apparatus that reduces sampling errors for data communicated between devices uses phase information acquired from a timing reference signal such as a strobe signal to align a data-sampling signal for sampling a data signal that was sent along with the timing reference signal. The data-sampling signal may be provided by adjustably delaying a clock signal according to the phase information acquired from the strobe signal. The data-sampling signal may also have an improved waveform compared to the timing reference signal, including a fifty percent duty cycle and sharp transitions. The phase information acquired from the timing reference signal may also be used for other purposes, such as aligning received data with a local clock domain, or transmitting data so that it arrives at a remote device in synchronism with a reference clock signal at the remote device. | 2010-03-25 |
20100073048 | PHASE LOCKED LOOP AND CALIBRATION METHOD - A phase locked loop (PLL) directly uses a charge pump and loop filter therein for fast and low-costly calibration. The PLL comprises a charge pump, a loop filter, a voltage comparator, a counting device, and a calibration device. The loop filter comprises a voltage storage device coupled to the charge pump for charging by the charge pump, wherein the voltage storage device comprises a variable impedance. The voltage comparator is coupled to a voltage reference and to the voltage storage device for comparing a voltage of the storage device and a voltage of the voltage reference. The counting device is coupled to the voltage comparator to measure the charge time required for the voltage of the voltage storage device to substantially equal to the voltage of the voltage reference. The calibration device adjusts the variable impedance to adjust the time measured by the counting device to a desired time. | 2010-03-25 |
20100073049 | SWITCHED-CAPACITOR CHARGE PUMP DEVICE FOR GENERATION OF OUTPUT DIRECT-CURRENT VOLTAGE WITH WIDE AMPLITUDE RANGE - A switched-capacitor charge pump device is proposed, which is designed for integration to a circuit system, such as a PLL (phase-locked loop) circuit system, for generation of an output direct-current (DC) voltage with a wide amplitude range; and which is characterized by the utilization of two switched-capacitor circuit units in addition to the output capacitor circuit and the utilization of an output voltage comparing circuit (such as a Schmitt trigger) for comparing the end-result output DC voltage against a half-amplitude drive voltage such that when the switched-capacitor circuit units are subjected to a charging-discharging action for voltage pump-up or pump down operations, the switched-capacitor circuit units are switched between a full-amplitude drive voltage and a half-amplitude drive voltage. This feature allows the invention to provide an output DC voltage with a wider amplitude range than prior art. | 2010-03-25 |
20100073050 | DIFFERENTIAL SIGNAL DRIVEN DIRECT-CURRENT VOLTAGE GENERATING DEVICE - A differential signal driven direct-current voltage generating device is proposed, which is designed for use with a PLL (phase-locked loop) circuit or a DLL (delay-locked loop) circuit system for generating an output of a direct-current (DC) voltage in response to a pair of differential signals, such as phase-difference signals; and which is characterized by the utilization of a capacitor-switched voltage doubler for doubling the output voltage of a charge pump so that the doubled voltage can be used as a control voltage for a PLL-VCO (voltage-controlled oscillation) or a DLL-VCDL (voltage-controlled delay line) circuit for generation of an output oscillating signal with a wider frequency range. | 2010-03-25 |
20100073051 | LOW JITTER LARGE FREQUENCY TUNING LC PLL FOR MULTI-SPEED CLOCKING APPLICATIONS - ABSTRACT The subject innovation relates to systems and/or methodologies for generating a low jitter large frequency tuning LC-based phase-locked loop circuit for multi-speed clocking applications. In addition to a plurality of noise reduction features, the phase-locked loop includes programmable charge pump and loop filter that enable a wide loop bandwidth, a programmable VCO that enables a wide VCO frequency range and a per lane clock divider that further enables a wide PLL frequency range. Furthermore, an auto-calibration circuit ensures that the VCO included in the PLL receives the optimum current for noise reduction across the VCO frequency range. | 2010-03-25 |
20100073052 | FRACTIONAL RESOLUTION INTEGER-N FREQUENCY SYNTHESIZER - Embodiments of the invention may provide for a frequency synthesizer capable to generate an output signal in which the frequency is a fractional portion of the reference frequency without a fractional divider. Based on mathematical relationship (“relatively prime”) between the reference frequency and other injection frequencies mixed with the output signal of a voltage controlled oscillator, the synthesizer is able to generate signals evenly spaced in the frequency domain like Fractional-N PLLs. The synthesizer may include an Integer-N PLL, a SSB mixer, frequency dividers, and frequency multipliers. A Integer-N PLL may include a Phase and Frequency Detector, a Charge Pump, a Loop Filter and a Dual Modulus Divider. By not requiring a fractional divider, the frequency synthesizer is able to avoid adopting any compensation circuits such as Sigma-Delta modulator to suppress fractional spurs. Therefore, the chip area, power consumption and complexity will be reduced considerably. | 2010-03-25 |
20100073053 | DELAY LOCKED LOOP FOR HIGH SPEED SEMICONDUCTOR MEMORY DEVICE - A semiconductor device comprises a delay locked loop (DLL) configured to control a phase delay of an internal clock to output first and second DLL clocks; an output enable unit configured to generate rising/falling data output enable signals in response to the second DLL clocks; and an output driver configured to output data in response to one of the first DLL clocks selected by the rising/falling data output enable signals, where a phase of the second DLL clock leads that of the first DLL clock. | 2010-03-25 |
20100073054 | Techniques For Digital Loop Filters - A digital loop filter includes a fine control circuit and a coarse control circuit. The fine control circuit adjusts a phase of a feedback clock signal by a first phase adjustment in response to a first phase error signal that indicates a sign of a phase error between a reference clock signal and the feedback clock signal. The coarse control circuit adjusts the phase of the feedback clock signal by a second phase adjustment in response to a second phase error signal. The second phase adjustment is larger than the first phase adjustment. The second phase error signal indicates a magnitude of a phase error between the reference clock signal and the feedback clock signal. | 2010-03-25 |
20100073055 | INVERTING ZIPPER REPEATER CIRCUIT - Repeater circuits including an inverting zipper repeater circuit and an inverting gain-enhanced repeater circuit are described. | 2010-03-25 |
20100073056 | ORGANIC TRANSISTOR INVERTER - A transistor includes a first semiconductor layer associated with a first electrode; a second semiconductor layer associated with a second electrode; and a discontinuous layer between the first and second semiconductor layer. The discontinuous layer has a plurality of openings being formed on a nonuniform organic surface. Applications of the transistor include an inverter that operates at low supply voltage and high frequency. | 2010-03-25 |
20100073057 | DUTY CYCLE CORRECTOR AND CLOCK GENERATOR HAVING THE SAME - A duty cycle corrector includes a delay unit configured to adjust an input clock and an inverted input clock with a delay value controlled in response to one or more control signals and to generate a positive clock and a negative clock, and a duty detector configured to receive the positive clock and the negative clock, to detect duty ratios of the positive clock and the negative clock and to generate the one or more control signals. | 2010-03-25 |
20100073058 | CLOCK/DATA RECOVERY CIRCUIT - A clock/data recovery circuit includes a data duty correction circuit ( | 2010-03-25 |
20100073059 | Duty control circuit and semiconductor device having the same - A duty control circuit including a clock input unit connected to a first node and a second node, the clock input unit receiving an input clock signal through the first node and changing a voltage of the second node to one of a first voltage level and a second voltage level in response to respective low and high logic levels of the input clock signal, a slew controller connected to the second node, the slew controller including one or more switches controlled by respective control signals, the one or more switches providing one of the first voltage level and the second voltage level to the second node in response to the control signals such that a slew rate of a signal at the second node is varied, and a clock output unit, the clock output unit outputting an output clock signal having a duty that varies. | 2010-03-25 |
20100073060 | PHASE SHIFT CIRCUIT WITH LOWER INTRINSIC DELAY - A phase shift circuit that includes two, rather than four, delay chains and corresponding selectors is described. This provides a significant area savings and reduces the intrinsic delay of the phase shift circuit, which is particularly beneficial for embodiments in which there is no intrinsic delay matching. In one implementation, the phase shift circuit includes a first delay circuit and a matching delay circuit. The first delay circuit provides a first delay that includes a first intrinsic delay and a first intentional delay. The delay matching circuit provides a matching delay that matches the first intrinsic delay. In one implementation, the phase shift circuit also includes a second delay circuit to provide a second delay that includes a second intrinsic delay and second intentional delay, where the second intrinsic delay matches the first intrinsic delay and the second intentional delay is half as long as the first intentional delay. | 2010-03-25 |
20100073061 | INVERTER CIRCUIT - An inverter circuit using FETs which do not cause a fluctuation in gate threshold voltage Vth is provided. The inverter circuit has a load transistor and a driving transistor which is serially connected to the load transistor and supplies a load current to the load transistor in accordance with an input signal. The load transistor has at least two FETs which are connected in parallel and have controlled terminals. A driving part alternately turns on the FETs through the controlled terminals. | 2010-03-25 |
20100073062 | Voltage Control Oscillator Without Being Affected by Variations of Process and Bias Source - A VCO includes a reference current module and a clock signal generating module. The reference current module generates a reference current according to a reference voltage. The clock signal generating module generates a clock signal according to the reference current. The reference current module utilizes the negative feed-back mechanism to keep the generated reference current at the predetermined size without being changed with the variation of the process and the bias source. | 2010-03-25 |
20100073063 | 3-Level Line Driver - Included are embodiments of a 3-level line driver. At least one embodiment of a method includes generating a repetitive wave; receiving an input signal and a complement of the input signal; providing a 3-level output signal; and filtering a feedback signal, the means for filtering including at least one of the following: a 0 | 2010-03-25 |
20100073064 | VOLTAGE CLAMP - An active over-voltage clamp system includes at least one over-voltage detector that is responsive to an input voltage and provides a first current. The system also includes a replica over-voltage circuit that provides a second current, and circuitry subtracting the second current from the first current to produce a difference current. The system further includes a differential clamp activated in response to the difference current. The differential clamp prevents the input voltage from increasing beyond a target voltage. | 2010-03-25 |
20100073065 | INTEGRATED GATE DRIVER CIRCUIT AND DRIVING METHOD THEREFORE - An integrated gate driver circuit receives a plurality of clocks and includes a plurality of driving units cascaded in series. Each driving unit is for driving a load and includes an input terminal, an output terminal, a first switch and a second switch. The first switch has a first terminal coupled to the input terminal, a second terminal coupled to a first node, and a control terminal receiving a first clock, and the first switch is turned on when the first clock is at high level. The second switch has a first terminal receiving a second clock, a second terminal coupled to the output terminal, and a control terminal coupled to the first node, wherein the second clock charges and discharges the load through the second switch when the first node is at high level; wherein the output terminal of each driving unit is coupled to the input terminal of the immediately succeeding driving unit. | 2010-03-25 |
20100073076 | SYSTEM FOR SUBSTRATE POTENTIAL REGULATION DURING POWER-UP IN INTEGRATED CIRCUITS - An integrated circuit with body-bias inputs coordinated by a switch at initial power application. A switch coupled to the N-well bias and P-type substrate bias lines of an integrated circuit selectively couples the substrate to ground or the substrate bias supply, depending upon the state of the bias supply lines. During power-up and the initial application of the N-well bias, the substrate is coupled to ground to prevent a leakage induce rise in the substrate potential. Upon sensing the presence of the substrate bias potential on the substrate bias line, the switch couples the substrate to the substrate bias line instead of ground. In another embodiment, a switch indirectly senses the availability of the substrate bias potential by sensing a charge pump enable signal. | 2010-03-25 |
20100073077 | Boosting charge pump circuit - A boosting charge pump circuit includes a first charge pump circuit unit that includes: a first charge pump capacitor having first and second ends; a first driver supplying the first end of the first charge pump capacitor with a first clock signal having a first voltage amplitude; and a first switch having a first terminal electrically connected to the second end of the first charge pump capacitor, a second terminal operatively connected to an output terminal, and a third terminal. A second charge pump circuit unit includes: a second charge pump capacitor having a third end operatively connected to the output terminal and a fourth end; a second driver operating on a voltage at a power node thereof to supply the fourth end of the second charge pump capacitor with a second clock signal, the second clock signal having a second voltage amplitude defined by the voltage at the power node; and a second switch having a fourth terminal electrically connected to the third terminal of the first switch, a fifth terminal electrically connected to an internal power voltage supply line and a sixth terminal electrically connected to the power node of the second driver. The first terminal of the first switch is electrically connected to the second terminal of the first switch when the fifth terminal of the second switch is electrically connected to the sixth terminal of the second switch, and the first terminal of the first switch is electrically connected to the third terminal of the first switch when the fourth terminal of the second switch is electrically connected to the sixth terminal of the second switch. | 2010-03-25 |
20100073078 | INTERNAL VOLTAGE GENERATING CIRCUIT - There is an internal voltage generating circuit for providing a stable high voltage by making a response time short. The internal voltage generating circuit includes a charge pump unit for generate a high voltage being higher than an external voltage in response to pumping control signals and a supply driving control signal; a pumping control signal generating unit for outputting the pumping control signals to the charge pump unit based on a driving signal; and a supply driving control unit for receiving the driving signal to generate the supply driving control signal to the charge pump unit. | 2010-03-25 |
20100073079 | BIAS ARRANGEMENT AND APPARATUS - A biasing arrangement for an electronic apparatus having an input device is disclosed. The biasing arrangement comprises a bias voltage generator arranged to provide a bias voltage; a bias resistor connected between the bias voltage generator and the input device; and a reference voltage point of the input device, wherein a voltage of the reference voltage point of the input device is provided to the bias voltage generator for controlling the bias voltage in relation to the voltage of the reference voltage point of the input device. An electronic apparatus is also disclosed. | 2010-03-25 |
20100073080 | AUTOMATIC GAIN CONTROL CIRCUIT AND METHOD FOR AUTOMATIC GAIN CONTROL - An automatic gain control circuit and method for stably maintaining received power in a mobile Internet system is disclosed. An efficient automatic gain control circuit structure is provided which uses no separate analog circuit elements in a process of detecting the level of a received signal. Therefore, it is possible to reduce a complexity of hardware, the size of the automatic gain control circuit and a manufacturing cost. Further, an automatic gain control (AGC) unit, which is made in a Fluctuating Gunn-Peterson Approximation (FGPA) type, performs an automatic gain control simply by referring to a lookup table based on the level of a received signal. Therefore, the present automatic gain control circuit can not only be more simply designed or modified than a conventional automatic gain control circuit, but also stabilize the level of the received signal simply without periodically checking the level of the received signal for the automatic gain control. | 2010-03-25 |