Patents Issued in October 30, 2008
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Publication number: 20080265837Abstract: A connector device includes a circuit board and a connector body, and the connector body includes a housing and a connection terminal provided inside the housing. A silicon resin is applied to fill a gap between the connector body and the circuit board. The application of the silicon resin can prevent a mold resin used to seal the connector device and a battery pack body from entering from the gap into the housing. Thereby, a connector device reliably establishing conduction and a battery pack applying such a connector device can be obtained.Type: ApplicationFiled: April 22, 2008Publication date: October 30, 2008Applicants: SANYO ELECTRIC CO., LTD., SANYO TUNER INDUSTRIES CO., LTD.Inventor: Fumitaka Okano
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Publication number: 20080265838Abstract: A device includes a rechargeable battery and a USB interface including a USB_ID pin. A charging device is connected to the device via the USB interface. A battery charging circuit in the device receives a charge via the USB_ID pin from the charging device, and the battery charging circuit charges the battery with the received charge.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Inventors: Saurabh Garg, Amol Subhash Pandit
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Publication number: 20080265839Abstract: According to one exemplary embodiment, a multi-mode power management unit (PMU) includes a number of switchable conductive paths, where each of the switchable conductive paths corresponds to at least one of a number of power modes. The multi-mode PMU further includes a shared inductor residing in each of the switchable conductive paths. A current can flow through the shared inductor in a same direction in each of the power modes. The multi-mode PMU further includes a controller configured to set one of the power modes using one of the switchable conductive paths. The power modes can include a battery-to-electronic system power mode and a charge-battery power mode. The power modes can further include a battery-to-electronic system/camera flash power mode, a power port-to-electronic system/battery power mode, and a battery-to-electronic system/backlight LED power mode.Type: ApplicationFiled: March 21, 2008Publication date: October 30, 2008Applicant: BROADCOM CORPORATIONInventor: Ken Guo Chi Yang
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Publication number: 20080265840Abstract: A method is provided for determining a residual charge on a battery (12), comprising applying a discharge pulse to the battery (12) and measuring a first voltage on the battery (12) at a first time (t1). Additional voltages on the battery are measured at additional times (t2, t3) subsequent to the first time (t1). Delta voltages (?V1, ?V2) are determined by subtracting each of the additional voltages from the first voltage and delta times (?t1, ?t2) are determined by subtracting the first time from each of the additional times. Regression equation coefficients (?, ?) are determined from regression analysis of the delta voltages and delta times, and are applied to a database for determining the residual charge.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Applicant: Motorola, Inc.Inventors: Cristiano Borges De Paula, Denis Fonseca
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Publication number: 20080265841Abstract: The provided are two test methods for the cycle life test of a lithium rechargeable battery, which measures charge/discharge capacity by repeating charging and discharging lithium rechargeable battery. In one method, a constant current-constant voltage of charge rate of 1.5C and 4.2V, and a cut-off current of 0.1C are set to charge the battery, and a discharge rate of 1.0C and a cut-off voltage of 3.0V are set to discharge the battery, and there is no rest period between the charging and discharging. In another method, a constant current-constant voltage charge condition of charge rate of 1.0C and 4.2V, and a cut-off current of 0.1C are set to charge the battery, and a discharge rate of 1.3C and a cut-off voltage of 3.3V are set to discharge the battery, and there is no rest period between the charging and discharging. The present invention is appropriate to the cycle life test method of 500 cycles.Type: ApplicationFiled: March 20, 2008Publication date: October 30, 2008Inventor: Cheonsoo Kim
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Publication number: 20080265842Abstract: A battery charger with a fixed frequency charging signal at or near the resonant frequency of the battery to be charged is presented. The present invention utilizes a microprocessor to modulate a current source at or near the resonant frequency of the battery to be charged without the use of a PLL. To simplify conventional modulated battery chargers, the PLL or other methods of phase correction are removed, reducing most of the calculation requirements for adjusting the phase angle, thereby reducing the piece count and ultimately cost and complexity. The result is a solution wherein charging occurs at or near the resonant frequency of the battery, and although suboptimal, the results are superior to traditional charging methods.Type: ApplicationFiled: April 21, 2008Publication date: October 30, 2008Inventors: William Stephen Hart, Brian L. Graham, John Arthur Fee, Laszlo Szerenyi
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Publication number: 20080265843Abstract: The present disclosure is an energy-efficient rapid battery charger, using inductive windings rather than transformer to charge a battery. The apparatus operates with an AC power source rectifying a high voltage DC output or AC source transformed to a low DC voltage output. The control driver frequencies vary from several hundred Hz to thousand of Hz. A capacitor, inductor, and power line are arranged in a series parallel combination tank circuit that operates over the on and off time of a complete cycle. During on-time, the inductor is charged with electromagnetic power. During off-time, the electromagnetic power in the inductor discharges into the battery.Type: ApplicationFiled: July 7, 2008Publication date: October 30, 2008Inventor: Dat D. Lam
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Publication number: 20080265844Abstract: A portable power driven system has a manually movable frame. In one example, an internal combustion engine and a generator device that generates AC power are supported on the frame. The internal combustion engine drives the generator device. An electrically powered starting device is coupled to the internal combustion engine and is controllable by a remote ignition system to enable the start-up of the internal combustion engine from a remote location. A control panel is coupled to the frame and includes at least one AC outlet and a battery receptacle that is electrically coupled to the starting device. The battery receptacle is materially the same as a foot of a cordless power tool that receives a battery pack.Type: ApplicationFiled: December 20, 2007Publication date: October 30, 2008Applicant: BLACK & DECKER INC.Inventors: TIMOTHY C. SMITH, TIMOTHY E. TERRELL, JOHN WEETENKAMP, JEFFREY P. GRANT, MICHAEL K. FORSTER
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Publication number: 20080265845Abstract: This device is A Specially Improved Automotive Replacement Voltage Regulator for use in the automotive components remanufacturing and original equipment alternator product. Particularly this device has additional transient suppression means for the loads; “high side drive” of the rotor field to eliminate corrosion from the low side short condition; full passivation around the monolithic chip; and a monolithic chip that contains both the power and control devices which permits a simplified heat sink for thermal dissipation.Type: ApplicationFiled: April 29, 2008Publication date: October 30, 2008Inventor: Justin B. Lybbert
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Publication number: 20080265846Abstract: A method for the active damping of a drive train in wind energy plant, with the following steps: the actual value of the generator rotational speed is acquired and amplified via an oscillatory delay element, the oscillatory delay element has a predetermined natural oscillation frequency (?E), which is smaller than the smallest natural frequency of the drive train, and a difference between the actual value of the rotational speed and the amplified value for the rotational speed is connected to a controller as actuating variable, which determines a correction moment for a generator control.Type: ApplicationFiled: July 11, 2007Publication date: October 30, 2008Applicant: Nordex Energy GmbHInventors: Malte Laubrock, Thomas Paul Woldmann, Soren Bilges
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Publication number: 20080265847Abstract: Provided are a method and apparatus for improving the power factor of an input power. The apparatus includes an input unit receiving the input power, a power factor correction unit correcting the power factor of the input power applied to the input unit, and a saturation prevention unit controlling the power factor correction unit such that the corrected power does not exceed a set power limit.Type: ApplicationFiled: November 9, 2007Publication date: October 30, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-myung WOO, Jin-hyung LEE, Kyoung-geun LEE
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Publication number: 20080265848Abstract: An apparatus for controlling a power flow in a high voltage network. A phase shifting transformer includes a tap changer.Type: ApplicationFiled: October 20, 2005Publication date: October 30, 2008Applicant: ABB RESEARCH LTD.Inventors: Bertil Berggren, Mojtaba Noroozian
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Publication number: 20080265849Abstract: A control apparatus for a power conversion circuit and a control method thereof are provided. The method of the control apparatus includes producing a first control signal and a second control signal; modulating the first control signal according to an output voltage of the power conversion circuit; detecting the output voltage of the power conversion circuit to attain a detecting result; if the detecting result exhibits the input voltage of the power conversion circuit below a normal operating level, using the second control signal to control the power conversion circuit; or if the detecting result exhibits the input voltage of the power conversion circuit above the normal operating level, using the first control signal to control the power conversion circuit. The duty cycle of the fist control signal is greater than that of the second control signal.Type: ApplicationFiled: June 25, 2007Publication date: October 30, 2008Applicant: WINBOND ELECTRONICS CORP.Inventor: Jong-Ping Lee
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Publication number: 20080265850Abstract: A current sensor senses the current at a sense transistor and generates an output current that is an accurate proportional representation of the current at the sense transistor. Furthermore, the sensed current is relatively independent of the resistive load of the feedback path at feedback control module to which it is applied. In one embodiment, the feedback control module uses the sensed current in a DC-DC voltage converter to regulate a voltage. The current sensor employs a pair of operational amplifiers to match a voltage at a current electrode of a transistor that generates the output current to a voltage at a current electrode of the sense transistor, such that an effective resistance of the transistor generating the output current is significantly higher than the resistive load of the feedback control module, thereby ensuring that the output current is relatively independent of the resistive load of the feedback control module.Type: ApplicationFiled: April 25, 2007Publication date: October 30, 2008Applicant: FREESCALE SEMICONDUCTOR, INC.Inventor: Jader Alves De Lima Filho
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Publication number: 20080265851Abstract: The high side or low side FET of a buck converter, or both, are replaced by plural parallel devices of different threshold voltage and are turned on and off in a sequence which offers the best turn on and turn off characteristics related to high and low threshold voltages. The parallel devices can have the same or different active areas.Type: ApplicationFiled: April 24, 2008Publication date: October 30, 2008Inventor: Jason Zhang
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Publication number: 20080265852Abstract: Provided is a voltage regulator having an overcurrent protective circuit, which is excellent in detection precision and small in current consumption. The voltage regulator having the overcurrent protective circuit which detects that overcurrent flows in an output transistor, and limits the current of the output transistor, includes a regulated cascode circuit that makes a voltage at a source of the output transistor equal to a voltage at a source of the output current detection transistor, in which the operating current of the regulated cascode circuit is supplied by a transistor that is controlled by the output voltage of an error amplifier circuit.Type: ApplicationFiled: April 16, 2008Publication date: October 30, 2008Inventor: Takashi Imura
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Publication number: 20080265853Abstract: A voltage regulating circuit for providing a regulated output voltage. The voltage regulating circuit includes a voltage regulator, a converting circuit, a capacitive device, a first current mirror module, and a second current mirror module. The voltage regulator has a first output producing the regulated output voltage and a second output producing a pass voltage. The converting circuit converts the pass voltage into a first current and a second current passing through a first converting node and a second converting node respectively, where the first current charges/discharges the capacitive device. The first current mirror module has a first current mirror path coupled to the first converting node and a second current mirror path coupled to the second converting node. The second current mirror module has a first current mirror path coupled to the second converting node and a second current mirror path coupled to the first output.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Inventors: Hung-I Chen, Chih-Hong Lou
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Publication number: 20080265854Abstract: An integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator and a voltage regulator. The voltage level generator generates output voltage level signals in response to a supply voltage. The level shifter receives the output voltage level signals from the voltage level generator and generates first and second sets of control signals. The bandgap reference generator receives a reference voltage input and generates a bandgap reference signal. The voltage regulator receives a supply voltage, the bandgap reference signal the first and second sets of control signals from the level shifter and generates a constant output voltage under varying circuit conditions.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Inventors: Chang-Hyeon Lee, Joshua Cho, Pete Good
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Publication number: 20080265855Abstract: Power regulator circuitry for programmable memory elements on programmable logic device integrated circuits is provided. The programmable memory elements may each include a storage element formed from cross-coupled inverters and an address transistor. Address drivers may be used to supply address signals to the address transistors. The power regulator circuitry may include an address power supply circuit that produces a time-varying address power supply voltage to the address drivers and storage element power supply circuits that provide time-varying storage element power supply voltages to the cross-coupled inverters in the storage elements. Unity gain buffers may be used to distribute a reference voltage from a bandgap voltage reference to the power supply circuits. The power supply circuits may use voltage dividers and p-channel metal-oxide-semiconductor control transistors.Type: ApplicationFiled: April 30, 2007Publication date: October 30, 2008Inventors: William Bradley Vest, Ping-Chen Liu, Thien Le
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Publication number: 20080265856Abstract: A differential amplifier receives a reference voltage and a divided voltage dividing an output voltage, and outputs a control voltage in accordance with the difference between the reference voltage and the divided voltage. The control voltage output from the differential amplifier is supplied to an output amplifier. The output amplifier generates a stabilized output voltage from a high-potential-side power supply voltage in accordance with the control voltage. A P-type MOS transistor is connected to a node of the output voltage, and the MOS transistor carries a current from the node of the output voltage. A current control circuit controls a gate of the P-type MOS transistor so that the current flowing through the P-type MOS transistor becomes a constant value.Type: ApplicationFiled: April 24, 2008Publication date: October 30, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shuichi Takada, Takeshi Abiru
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Publication number: 20080265857Abstract: A power conversion system, preferably a buck converter, having (i) an oscillator, (ii) a pulse width modulator, (iii) and a nonoverlap clock generator and level shifter, wherein the improvement comprises the elimination of an external resistor divider is described. The buck converter can convert input voltage ranging from approximately 3V to 5V down to approximately 0.7-1.0V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V without the use of resistor dividers. The voltage input identifiers select one of the possible output settings for flexibility and accuracy. The integrated field emitting transistors can provide a continuous current of at least 6 A. Additionally, peak current mode and an oscillator enable multiphase operation, up to ten buck converters, for up to 60 A output current. The multiphase operation reduces the output inductor size, and number of bulk capacitors. Moreover, the multiphase operation yields higher efficiency and provides high transient response for demanding applications.Type: ApplicationFiled: July 7, 2008Publication date: October 30, 2008Inventors: Fereydun Tabaian, Ali Hejazi, Hamed Sadati
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Inductive element for a multi-phase interleaved power supply and apparatus and method using the same
Publication number: 20080265858Abstract: An inductive element for transforming and/or regulating voltage input from a multi-phase, interleaved power supply system into an output voltage to a load is disclosed. The multi-phase, interleaved power supply system includes a plurality of pulsed power sources, each of which is adapted to provide voltage at a discrete phase. The inductive element includes a magnetic core having, for each power supply, a distinct area of relatively-high magnetic reluctance, which is surrounded by areas of relatively-low magnetic reluctance, and a pair of windings. Each of the pair of windings includes a first, phase winding that is electrically coupled to an output of one of the pulsed power source and to the load, and a second, loop winding that is operatively coupled and proximate to the first, phase winding. Each of the second, loop windings is disposed serially on a closed loop.Type: ApplicationFiled: April 25, 2007Publication date: October 30, 2008Inventor: Vladimir Alexander Muratov -
Publication number: 20080265859Abstract: A selectively protected electrical system includes or operates with a power source, a load, a power driver circuit for controllably transferring power from the power source to the load, the power driver circuit being encapsulated in a potting material, and a controller for enabling and disabling the power driver circuit, the controller being un-encapsulated by the potting material. If a contaminant induced electrical fault occurs in the selectively protected electrical system, the electrical fault is more likely to occur in the un-encapsulated controller, such that the selectively protected electrical system is disabled. The contaminant is inhibited from contacting and inducing an electrical fault in the power driver circuit, thus providing for a controlled failure of the selectively protected electrical system.Type: ApplicationFiled: July 1, 2008Publication date: October 30, 2008Inventors: Cary D. Talbot, Sheldon B. Moberg, James D. Causey, Jay A. Yonemoto
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Publication number: 20080265860Abstract: A bandgap voltage reference circuit is described. By providing first and second bipolar devices that are operable with different current densities a base emitter voltage difference is created. This voltage difference is increased by coupling first and second cascode circuits to the first and second bipolars, the cascode circuits also being scaled relative to one another.Type: ApplicationFiled: April 30, 2007Publication date: October 30, 2008Applicant: Analog Devices, Inc.Inventors: Dennis A. Dempsey, Stefan Marinca
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Publication number: 20080265861Abstract: A voltage providing circuit for generating an output voltage, which includes: a plurality of oscillating circuits, for providing clock signals with different frequencies; a detection circuit, for generating a detection result according to a reference voltage and the output voltage; a selecting unit, coupled to the oscillating circuits and the detection circuit, for selecting one of the clock signals according to the detection result; and a charge pump circuit, for controlling a charge pump according to the clock signal selected by the selecting unit to generate the output voltage.Type: ApplicationFiled: February 13, 2008Publication date: October 30, 2008Inventor: Chien-Chuan Wang
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Publication number: 20080265862Abstract: A power supply system comprises a parallel arrangement of a first switched mode power supply (1) which has a first system bandwidth (LB1) and a second switched mode power supply (2) which has a second system bandwidth (LB2) covering higher frequencies than the first system bandwidth (LB1). The first switched mode power supply (1) is dimensioned to supply a first maximal output power (P1m), the second switched mode power supply (2) is dimensioned to supply a second maximal output power (P2m) being smaller than the first maximal output power (P1m). A control circuit (3) varies a reference voltage (Vr) of both the first switched mode power supply (1) and the second switched mode power supply (2) to obtain a corresponding variation of an output voltage (Vout) of the parallel arrangement.Type: ApplicationFiled: March 24, 2005Publication date: October 30, 2008Inventors: Ralf Burdenski, Pieter Gerrit Blanken, Giuseppe Grillo, Derk Reefmann
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Publication number: 20080265863Abstract: A reference current circuit includes a differential amplifier amplifying a difference in potential between a reference voltage and a first node and outputting the amplified potential difference to a second node, and adjusting transistors connected between a supply voltage and the first node. The reference current circuit further includes switches provided correspondingly to the adjusting transistors to apply a voltage of the second node to control electrodes of the adjusting transistors in response to control signals that are respectively input to the switches. The reference current circuit further includes a resistance connected between the first node and a common potential, and an output transistor having its conduction state responsive to the voltage of the second node for controlling a current supplied from the supply voltage to a load.Type: ApplicationFiled: April 11, 2008Publication date: October 30, 2008Applicant: OKI ELECTRIC INDUSTRY CO., LTD.Inventors: Danya SUGAI, Naoaki SUGIMURA
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Publication number: 20080265864Abstract: A system and method for determining the relative phase between current-carrying conductors. A reference unit samples and digitizes a voltage waveform at a reference location and transmits the digitized voltage waveform. A field sampling unit is placed on or directly adjacent a field conductor at a field location and transmits a signal representative of the voltage waveform of the field conductor. A field unit receives and digitizes the waveform received from the field sampling unit, receives the digitized voltage waveform from the reference unit, and compares the digitized field waveform and the digitized reference waveform. Also provided are methods for commissioning the phase identification system and calibrating the reference unit.Type: ApplicationFiled: May 12, 2008Publication date: October 30, 2008Inventors: Aaron Coolidge, Harold I. Marsden
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Publication number: 20080265865Abstract: An adaptive measurement system measures a transition rate associated with an output of a device. An input signal that is characteristic of the output of the device is received by an input signal-to-frequency converter, which changes state based upon a characteristic of the input signal. The input signal-to-frequency converter provides a second signal, which reflects the state changes of the input signal-to-frequency converter. The second signal is sampled over a sample period and an instance of average transition rate is determined. A control subsystem may use the instance of average transition rate for regulating the device.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Applicant: KORRY ELECTRONICS CO.Inventor: Walter P. M. Gurr
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Publication number: 20080265866Abstract: One embodiment of the invention relates to an apparatus for profiling an ion beam. The apparatus includes a current measuring device having a measurement region, wherein a cross-sectional area of the ion beam enters the measurement region. The apparatus also includes a controller configured to periodically take beam current measurements of the ion beam and to determine a two dimensional profile of the ion beam by relating the beam current measurements to sub-regions within the current measuring device. Other apparatus and methods are also disclosed.Type: ApplicationFiled: April 30, 2007Publication date: October 30, 2008Inventors: John Zheng Ye, Michael Paul Cristoforo, Yongzhang Huang, Michael A. Graf, Bo H. Vanderberg
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Publication number: 20080265867Abstract: A process for measuring the thickness of an insulating material. The process includes providing a device used to measure capacitance, and electrically connecting the capacitance measuring device to a heat sink and an electrical, heat-generating component. The thickness of the insulating material is determined by measuring the capacitance of the insulating material according to the formula; B=?r?0A/C, where B is the thickness of the insulating material, C is the capacitance, A is the area of the heat generating component, ?0 is the permittivity of free space and ?r is the relative dielectric constant of the insulating material.Type: ApplicationFiled: April 25, 2007Publication date: October 30, 2008Applicant: International Business Machines CorporationInventors: Michael A. Gaynes, Edward J. Yarmchuk
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Publication number: 20080265868Abstract: Parametric measurement of first- and second-generation telecommunications equipment has been relatively straightforward. The evolution to more complex transmission schemes such as those proposed for third-generation (3G) telecommunications devices can employ the subject methods and apparatus and apply AM-PM test procedures to a multicarrier amplifier RF environment to properly characterize the parametric performance of these transmission systems, particularly those operating in a multicarrier environment.Type: ApplicationFiled: July 15, 2008Publication date: October 30, 2008Applicant: AT&T MOBILITY II LLCInventor: Scott Prather
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Publication number: 20080265869Abstract: One embodiment includes a system comprising a switching power supply comprising at least one switching phase configured to provide a corresponding phase output at a respective phase node thereof, the respective phase node being coupled to an output through a filter for providing a corresponding output signal. At least one resistor interconnects the respective phase node of each of the at least one switching phase with a test node, the test node being configured to provide a test signal representing the phase output at each phase node.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Inventor: SAMUEL M. BABB
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Publication number: 20080265870Abstract: A sensor apparatus to burn off contaminating particulate matter from a sensor. The sensor apparatus includes a signal electrode assembly, a detector electrode assembly, and an electrical heater. The signal electrode assembly includes a signal electrode coupled to a signal electrode insulating substrate. The detector electrode assembly includes a detector electrode coupled to a detector electrode insulating substrate. The detector electrode is positioned relative to the sensor electrode to generate a measurement of an ambient condition. The electrical heater is positioned relative to the signal and detector electrode assemblies to burn off an accumulation of contaminating particles from at least one electrode assembly of the signal and detector electrode assemblies.Type: ApplicationFiled: April 28, 2008Publication date: October 30, 2008Inventors: Balakrishnan G. Nair, Brett Henderson
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Publication number: 20080265871Abstract: Apparatus and methods are provided for a system for measurement of a current in a conductor such that the conductor current may be momentarily directed to a current measurement element in order to maintain proper current without significantly increasing an amount of power dissipation attributable to the current measurement element or adding resistance to assist in current measurement. The apparatus and methods described herein are useful in superconducting circuits where it is necessary to monitor current carried by the superconducting elements while minimizing the effects of power dissipation attributable to the current measurement element.Type: ApplicationFiled: September 30, 2005Publication date: October 30, 2008Inventor: Stephen D. Umans
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Publication number: 20080265872Abstract: An object of the present invention is to provide a wiring substrate capable of accurately detecting a potential difference in a shunt resistor and a current to be detected without being influenced by soldering, and a current detection device. A land mounted with a rectangular surface at each end of a shunt resistor is configured by first and second lands each having a rectangular portion and being arranged at a predetermined interval with a central line as a center, and third and fourth lands each having an area smaller than those of the first and second lands and being arranged at one end of the first and second lands to be connected respectively to the first and second lands.Type: ApplicationFiled: April 24, 2008Publication date: October 30, 2008Applicant: OMRON CORPORATIONInventor: Atsushi Nagashima
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Publication number: 20080265873Abstract: A vertically folded probe is provided that can provide improved scrub performance in cases where the probe height is limited. More specifically, such a probe includes a base and a tip, and an arm extending from the base to the tip as a single continuous member. The probe arm is vertically folded, such that it includes three or more vertical arm portions. The vertical arm portions have substantial vertical overlap, and are laterally displaced from each other. When such a probe is vertically brought down onto a device under test, the probe deforms. During probe deformation, at least two of the vertical arm portions come into contact with each other. Such contact between the arm portions can advantageously increase the lateral scrub motion at the probe tip, and can also advantageously reduce the probe inductance.Type: ApplicationFiled: December 6, 2006Publication date: October 30, 2008Inventor: January Kister
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Publication number: 20080265874Abstract: A test handler includes a loading unit for loading semiconductor devices from customer trays onto a test tray; a test chamber for performing a test for the semiconductor devices loaded on the test tray; a pushing unit having at least one pushing member for pushing the test tray located in the test chamber to be tested, and a press unit for operating the pushing member; a position control unit for adjusting a position of the pushing member to compensate a deviation between the pushing member and the test tray due to a thermal expansion or contraction of any one of the pushing member and the test tray; and an unloading unit for unloading the semiconductor devices loaded on the test tray onto the customer trays after a test for the semiconductor devices is completed.Type: ApplicationFiled: July 10, 2008Publication date: October 30, 2008Applicant: TECHWING CO., LTD.Inventors: Jae Gyun SHIM, Yun Sung NA, In Gu JEON, Tae Hung KU, Dong Han KIM
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Publication number: 20080265875Abstract: A fluid production computation apparatus using the electromagnetic induction theory is disclosed. In accordance with an embodiment of the present invention, the fluid production computation apparatus includes a line through which a current flows according to fluid production; a magnetic sensor, measuring magnetism induced by the current; and a fluid production computation unit, computing the fluid production through magnetism measured by the magnetic sensor. The conventional flow measurement apparatus measures the flow by measuring a current or a voltage induced by magnetism formed by a fluid or by using a fluid measurement sensor. However, with the present invention, an apparatus can be miniaturized and the measurement can be precisely performed by measuring a magnetic field induced by a current flowing according to fluid production.Type: ApplicationFiled: January 11, 2008Publication date: October 30, 2008Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kyoung-Soo Chae, Jae-Hyuk Jang, Jae-Hyoung Gil
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Publication number: 20080265876Abstract: The present invention relates to a sensor module for detecting a relative displacement of an object having a groove pattern with alternately formed projection and depression, which comprises a magnet for generating a magnetic field; a giant magneto resistance (GMR) sensor installed between the magnet and the object to detect a variation in the magnetic field and output an electric signal; a signal processing part for processing the output signal from the GMR sensor to output a square wave; and a housing for supporting the magnet the GMR sensor and the signal processing part, and a method of detecting a moving direction using the same. It is possible to detect in non contact manner and stably a moving direction, a moving distance, a moving speed and the like using the sensor module of the present invention.Type: ApplicationFiled: July 20, 2007Publication date: October 30, 2008Inventors: Dong-Rak LEE, Jae-Woo Park, Bong-Geun Cho, Hyoung-Jun Moon
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Publication number: 20080265877Abstract: An angle detection apparatus includes a rotation member including at least one north magnetic polar region and at least one south magnetic polar region alternately arranged around a rotation center, a magnetic field detecting portion having a magnetic plate and detecting elements detecting magnitudes of magnetic components in a direction perpendicular to the magnetic plate, and a computing unit determining a rotation angle of the rotation member, wherein the magnetic field detecting portion is disposed so that the magnetic plate is oriented perpendicular to a first direction, where magnetic field intensity is at its maximum, and the magnetic field detecting portion detects the magnitudes of the magnetic components in the first direction and a second direction corresponding to a direction that the north and south magnetic polar regions are circumferentially arranged.Type: ApplicationFiled: April 22, 2008Publication date: October 30, 2008Inventors: Yukihiro Kato, Masashi Momiyama, Noriaki Fujita
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Publication number: 20080265878Abstract: Using eddy currents for automatic inspection of a rectilinear hole formed in a metal part. An eddy-current probe is carried by a drive system associated with a positioning baseplate that carries a calibration part including a hole similar to the hole for inspection and in alignment with an orifice thereof.Type: ApplicationFiled: April 17, 2008Publication date: October 30, 2008Applicant: SNECMAInventors: Sadia Bousquet, Patrick Cabanic, Luc Ravize, Jose Claude Jacques Robin
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Publication number: 20080265879Abstract: Inspecting an open cavity by successive broaching movements of an eddy-current sensor. The inspection device comprises a probe body including the sensor installed laterally in the vicinity of the end of a rod and in line with a ramp, together with resilient bias means acting on the probe body.Type: ApplicationFiled: April 14, 2008Publication date: October 30, 2008Applicant: SNECMAInventors: Patrick Briffa, Patrick Cabanis, Patrick Gaisnon, Luc Ravize
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Publication number: 20080265880Abstract: A Hall element (10) outputs a Hall voltage generated at a first terminal pair (A, C) or a second terminal pair (B, D) to first and second output terminals by switching the voltage in a first status and a second status. Based on the voltages of the first and the second output terminals and a reference voltage, first and second capacitors (41, 42) are charged. Then, the voltages of the first and the second capacitors (41, 42) are compared, and a detection signal is obtained. Thus, a magnetic sensor circuit (1) which reduces influence of an element offset voltage of the Hall element (10) and also reduces influence of an input offset voltage generated at an amplifier (30), and a portable terminal provided with such magnetic sensor circuit (1) are provided.Type: ApplicationFiled: February 6, 2006Publication date: October 30, 2008Applicant: ROHM CO., LTD.Inventor: Hidetoshi Nishikawa
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Publication number: 20080265881Abstract: A direction control apparatus is provided. The direction control apparatus includes an input unit, and a magnetic sensing unit. The input unit includes an operation member, a magnetic member, an elastic member, and a base. The elastic member is an elastic structure. The magnetic sensing unit includes a magnetic sensor, and a magnetic signal processing device. The magnetic sensor is a device for sensing a distribution of a magnetic field, and the magnetic signal processing device is an electronic calculating device. The elastic member is provided for restricting the operation member at either a first status position or a second status position. When at the first status position, the operation member is positioned at balanced position where the elastic member achieves an elastic balance.Type: ApplicationFiled: April 23, 2008Publication date: October 30, 2008Inventors: Yung-Hsin Chang, Hsi-Zhen Lin
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Publication number: 20080265882Abstract: A phantom for use in an MRI or MRS system includes an array of subresolvable compartments that are each connected to receive fluid from one of a plurality of fluid reservoirs. The array of compartments is divided into sub-arrays which differ from each other by the mix of compartments in each sub-array receiving fluids from the different reservoirs. Studies can be performed with the phantom by filling the compartments with selected fluids from the reservoirs, disconnecting the reservoirs and placing the phantom in the system bore. The phantom can be reused in other studies by replacing the fluids with different fluids.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Inventor: Christopher John Wiggins
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Publication number: 20080265883Abstract: A method for magnetic resonance imaging includes performing a preparatory stage of a MR pulse sequence with an MRI system in which a non-selective RF preparatory pulse is used having a bandwidth such that any spin species having corresponding Larmor frequencies within that bandwidth are affected and the bandwidth is centered at a selected frequency which is offset from a nominal Larmor frequency of the desired spin species being imaged. A time period (TI) elapses during which longitudinal spin magnetization recovers; and then an imaging stage is performed in which an RF excitation pulse is generated to produce transverse spin magnetization of the desired spin species, and in which a set of NMR signals are acquired. An image is reconstructed using the acquired set of NMR signals, and the reconstructed image has reduced artifacts due to B0 field inhomogeneities caused by magnetic susceptibility effects.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Inventor: Christopher John Wiggins
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Publication number: 20080265884Abstract: A magnetic resonance imaging apparatus includes an imaging condition setting unit and an image acquisition unit. The imaging condition setting unit includes an input part for inputting an imaging condition with applying plural pre-pulses. The image acquisition unit performs imaging according to the imaging condition and generates an image based on data acquired by the imaging. The imaging condition setting unit includes a display part configured to display an application region and attribute information of at least one pre-pulse of the plural pre-pulses together with a position of the imaging.Type: ApplicationFiled: April 18, 2008Publication date: October 30, 2008Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventor: Mitsue Miyazaki
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Publication number: 20080265885Abstract: In a magnetic resonance imaging method, inner radial readout lines (100, 200, 300, 400) in an inner portion (102, 202, 302, 402) of k-space are acquired using a first readout magnetic field gradient profile (120, 220, 320, 420). Outer radial readout lines (104, 204, 304, 404) in an outer portion (106, 206, 306, 406) of k-space disposed substantially outside of the inner portion of k-space are acquired using a second readout magnetic field gradient profile (124, 224, 324, 424) different from the first readout magnetic field gradient profile. The acquired inner and outer radial readout lines are reconstructed to produce a reconstructed image.Type: ApplicationFiled: February 7, 2006Publication date: October 30, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Wayne R. Dannels
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Publication number: 20080265886Abstract: In a magnetic resonance imaging (MRI) method, in the form of an MRI pulse sequence, and an apparatus for acquiring MRI data from an object, a contrast preparation module is applied to the object for preparing a contrast in the magnetization of nuclear spins of the object, and an imaging module is applied to the object after the contrast preparation module for acquisition of magnetic resonance image data reflecting the prepared contrast. The contrast preparation module includes a train of radio-frequency pulses with the same flip angle magnitude ?, the respective signs of the flip angles alternating from radio-frequency pulse to radio-frequency pulse.Type: ApplicationFiled: April 25, 2007Publication date: October 30, 2008Inventor: Jordin D. Green