Patents Issued in April 8, 2004
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Publication number: 20040066165Abstract: In a motor feedback control, the current supply phase is set on the basis of the encoder count of an encoder and the current supply phase is also set on the basis of the encoder count by time-synchronous processing. In the feedback control, a maximum value or a minimum value of encoder counts is stored with updating. The rotation reversing is determined by comparing the present encoder count with the maximum value or the minimum value. If reversing is detected, the reverse rotation is stopped by fixing the current supply phase. If a disconnection is detected in windings of one phase in starting a motor feedback control, one of the other two phases for which no disconnection is detected is set to the first current supply phase.Type: ApplicationFiled: October 1, 2003Publication date: April 8, 2004Applicant: DENSO CORPORATIONInventors: Shigeru Kamio, Yasuhiro Nakai
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Publication number: 20040066166Abstract: In a motor-driven shift position switching device, when the difference between a target position and the rotation position of a rotor has become smaller than a prescribed value in a motor feedback control, a transition is made to a deceleration control. A phase lead correction amount for correcting the phase lead of the current supply phase with respect to the rotor rotation phase is set in accordance with the rotor rotation speed. Thus, proper braking force suitable for the rotor rotation speed is exerted on the rotor and the rotor can be decelerated smoothly as it approaches the target position. Further, in the period when the current supply to the motor is kept off, the shift position switching determination ranges are set wider than in the period when the current supply to the motor is on.Type: ApplicationFiled: October 1, 2003Publication date: April 8, 2004Applicant: DENSO CORPORATIONInventors: Yasuhiro Nakai, Shigeru Kamio
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Publication number: 20040066167Abstract: A multi-axes industrial processing machine with a multi-axes electrical drive system and at least two axle drives that have each an axle module and a built-in motor is disclosed. The machine further includes an impedance that is transformer-coupled with a supply module through an annular core. Either the phase lines on the AC side of the supply module or the output lines of the DC side of the supply module as well as an additional winding are wound on the annular core. The impedance is connected in parallel to the additional winding.Type: ApplicationFiled: July 31, 2003Publication date: April 8, 2004Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Tobias Hofmann, Sebastian Raith, Bernd Segger
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Publication number: 20040066168Abstract: A jump start protection circuit having a normally open switch and a resistor positioned in parallel intermediate to a battery and a jump start post. A controller manipulates the switch between an open position and closed position, the closed position connects the jump start post to the battery and the open position disconnects the jump start post from the battery. The controller measures voltages at the battery and jump start post and is capable of receiving one or more additional inputs. The controller closes the switch when acceptable jump start conditions are detected. The controller can open the switch or maintain the switch in an open position. The jump start circuit provides protection against attempts to charge a battery with incorrect polarity connections and attempts to charge a battery from a potentially hazardous higher voltage power source.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Inventors: Terry A. George, John V. Caputo
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Publication number: 20040066169Abstract: A system and method particularly suited for the re-charging of portable devices includes a charger having a charge port adapted for wired, contact, or contactless re-charging. Although the charger could be wired for connection to an electrical outlet, the charger is preferably wireless, and is either solar powered, or it can operate on batteries or fuel cells. The charger can be enabled/disabled by a payment unit depending on whether or not payment has been received from a user, and whether the amount paid is sufficient. The payment unit permits the charger to provide a charge for a predetermined amount so that the user can contactlessly recharge a device within a predetermined distance of the charge port. The type of device to be recharged and amount of recharge desired can be selected by a user directly, or after receiving a recommendation regarding the optimal/typical amount of recharge to be provided. A wireless charging unit permits recharging of the power source of a device in unconventional locations.Type: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Applicant: Koninklijke Philips Electronics N.V.Inventor: Gert Bruning
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Publication number: 20040066170Abstract: The present invention relates to a cycle battery output control device, more particularly to a control device precisely monitoring the battery output and effectively extending its life, comprising a central control module, a battery module, an output module, a memory module, and a data module; characterized in that a low-voltage detecting unit of the central control module acts as a switch between battery modules to timely control the function of the output module, and count the number of times that the detecting unit monitors the cycle switching output route with the previous battery at any time to assure the exhaustion of the electricity storage of the previous battery module, and working with the voltage indicating unit to timely turn on or off the light and correctly indicate the exhaustion of electricity storage of the battery module and the charging indicating unit to alert a blinking light to show the status of switching to the last battery module for the cycle switch in order to attain the effect of pType: ApplicationFiled: October 7, 2002Publication date: April 8, 2004Inventor: Lin Wen-Fei
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Publication number: 20040066171Abstract: A schedule recording section (4) records a user's schedule. A SOC (state-of-charge) optimization planning section (5) plans the SOC of a rechargeable battery (21) based on the user's schedule. The planned control target SOC is optimized through a comparison between the continuous charging characteristic of the rechargeable battery (21) and the length of an operable period or the amount of electric power to be secured at the time of battery-powered operation. For example, a control target SOC is set at a full charge in the proximity of the period during which a battery-powered operation time is expected to be long. A control target SOC is set lower enough than a full charge in the period during which a connection to an external power supply (A) by the AC adapter (11) is expected to continue for a long time. A power-supply control section (3) controls the charge and discharge of the rechargeable battery (21) according to a plan for the optimization of the SOC.Type: ApplicationFiled: August 28, 2003Publication date: April 8, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventor: Iichiro Mori
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Publication number: 20040066172Abstract: A DC power source unit supplies a DC voltage to an electrically powered tool through an adapter and also charges a battery pack used as an alternative power source of the tool. With the DC power source unit of the invention, a microcomputer receives a temperature signal indicative of a temperature of the battery pack and determines that the battery pack is fully charged based on the temperature signal. This determination is made regardless of whether the battery pack is being charged or not. As such, the fully charged condition of the battery pack can be accurately detected even if the tool is operated when the battery pack is almost fully charged.Type: ApplicationFiled: October 2, 2003Publication date: April 8, 2004Applicant: HITACHI KOKI CO., LTD.Inventors: Nobuhiro Takano, Takeshi Takeda, Eiji Nakayama, Kazuhiko Funabashi
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Publication number: 20040066173Abstract: An active switch for electrically connecting and disconnecting a power source such as a solar array to a charge storage device is disclosed. The active switch allows a minimal amount of reverse back current flow from the charge storage device to the power source having a low on-resistance.Type: ApplicationFiled: October 7, 2002Publication date: April 8, 2004Inventor: Robert L. Reynolds
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Publication number: 20040066174Abstract: Disclosed is a charging apparatus capable of easily charging a battery of a mobile communication terminal and being portable.Type: ApplicationFiled: January 30, 2003Publication date: April 8, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jae-Won Choi
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Publication number: 20040066175Abstract: An electrical system for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A control circuit during a start-up mode switches the inverter circuit to the stator winding of the alternator and during a power out mode switches the inverter circuit to the output circuit. During start-up the frequency and voltage of the electrical power to the inverter is controlled as a function of the time and/or rotation speed.Type: ApplicationFiled: October 3, 2003Publication date: April 8, 2004Inventors: Suresh C. Gupta, Douglas R. Burnham, J. Michael Teets, Jon W. Teets
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Publication number: 20040066176Abstract: An electrical system and method for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A control circuit during a start-up mode switches the inverter circuit to the stator winding of the alternator and during a power out mode switches the inverter circuit to the output circuit. During the power out mode, current data is sensed and is used for current limit and/or power balancing.Type: ApplicationFiled: October 3, 2003Publication date: April 8, 2004Inventors: Suresh C. Gupta, Douglas R. Burnham, J. Michael Teets, Jon W. Teets
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Publication number: 20040066177Abstract: An electrical system and apparatus for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A control circuit during a start-up mode switches the inverter circuit to the stator winding of the alternator and during a power out mode switches the inverter circuit to the output circuit. The operating parameters of the turbine are monitored during start-up and/or the power out mode.Type: ApplicationFiled: October 3, 2003Publication date: April 8, 2004Inventors: Suresh C. Gupta, Douglas R. Burnham, J. Michael Teets, Jon W. Teets
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Publication number: 20040066178Abstract: An auxiliary resonance type DC/DC converter which is compact, inexpensive and highly efficient is provided. In a step-down type DC/DC converter 15, comprising two main switches 1 and 2 connected between input terminals 11 and 12 and a smoothing reactor Lo connected between a junction M of the main switches 1 and 2 and an output terminal 14, an auxiliary resonance circuit 10 in which a resonance reactor Lr and an auxiliary switch 3 are connected in series is provided between the junction M and the output terminal 14 and, moreover, capacitors C1 and C2 for resonance are provided in parallel to the main switches 1 and 2, respectively. The auxiliary switch 3 is turned on when the main switch 2 is turned off and the main switch 1 is turned on, and the electrical energy is supplied from the output terminal 14 to the resonance reactor Lr, then, the main switch 1 is turned on when a voltage Vds across the main switch 1 falls to zero due to the resonance of Lr and C1 and C2.Type: ApplicationFiled: September 30, 2003Publication date: April 8, 2004Inventors: Tomomichi Mizoguchi, Koji Kawasaki
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Publication number: 20040066179Abstract: A DC/DC boost converter is consisted of an inductor, a power electronic switch, a control circuit, a first diode, a second diode and a capacitor. The power electronic switch is not operated if the input DC voltage is higher than the specified low reference DC voltage and it is regarded as the normal input DC voltage. If the input DC voltage is lower than the specified low reference DC voltage and this condition is regarded as the abnormal input DC voltage, the power electronic switch is controlled by pulse width modulation control and a dc voltage across the capacitor is created. Then, the output DC voltage is the summation of the input DC voltage and the capacitor voltage. Thus, the inventive DC/DC boost converter operates only when the input DC voltage is abnormal, thereby avoid additional power loss in the duration of normal input DC voltage.Type: ApplicationFiled: April 23, 2003Publication date: April 8, 2004Applicant: UIS Abler Electronics Co., Ltd.Inventors: Chin-Chang Wu, Hurng-Liang Chou, Ming-Hong Chiueh, Yao-Jen Chang
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Publication number: 20040066180Abstract: A current generator generates a non-linear output current whose temperature coefficient exhibits a prescribed non-linear-to-quasi-linear curvature when a control voltage range is restricted. This particular current characteristic enables a voltage reference employing the current generator for high-order curvature correction to produce an output voltage whose variation is extremely flat over its industry standard operational temperature range.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Applicant: Intersil Americas Inc.Inventor: William Todd Harrison
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Publication number: 20040066181Abstract: The invention relates to a high frequency probe tip, particularly for printed circuit boards and/or HF cables, having a connecting end (10) to which a measuring cable may be connected for linking to a measuring device, with an earth contact (16) and a measuring tip (12), on which at least one signal contact (14) is formed, whereby a coaxial conductor (18) with an earth conductor arrangement (20) and at least one signal conductor (22) surrounded by a dielectric (24) connects the connecting end (10) to the measuring tip (12). Starting from the measuring tip (12), the earth conductor arrangement (20) is so designed over a predetermined region (30) of the high frequency probe tip that at least one of the signal conductors (22) is displaceable within the earth conductor arrangement (20) together with the dielectric (24) surrounding said signal conductor.Type: ApplicationFiled: November 24, 2003Publication date: April 8, 2004Inventor: Steffen Thies
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Publication number: 20040066182Abstract: A measuring device (e.g., a vectorial network analyser) by means of at least two ports can be connected to a device under test and has associated excitation/receiving units (ERUs), each thereof having one port. At least one ERU has a signal generator, which can apply an excitation signal onto a device under test. Each ERU possesses two receiving apparatuses (each with a mixer in connection with an oscillator signal) to receive the excitation signal, the reflected signal from the associated port or the signal transmitted to the associated port and converts said signal into an intermediate signal. Each ERU exhibits its own oscillator separate from the signal generator, and generates the oscillator signal for the mixer of the receiving apparatus of the ERU, whereby the frequency and/or phase of the oscillator signals, can be adjusted independently of the frequency and/or phase of oscillator signals of the oscillators of other ERUs.Type: ApplicationFiled: October 7, 2003Publication date: April 8, 2004Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Christian Evers, Peter Kraus, Herman Boss
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Publication number: 20040066183Abstract: The present invention describes an active magnetic sensor, in particular for detecting the rotational behavior of a wheel, comprising a magneto-electric transducer (2) that is electrically connected to a modulator (5), a current source subassembly (4) controlling the signal current output at the sensor output (k3, k4), said sensor being characterized by an undervoltage monitoring circuit (10) which monitors the electric signal prevailing at sensor output (k3, k4) with respect to whether a voltage value falls below a first predetermined threshold voltage (VU) and which controls the signal current output at sensor output (k3, k4) in dependence on the result of this monitoring action by influencing the current source sub-assembly (4).Type: ApplicationFiled: November 5, 2003Publication date: April 8, 2004Inventors: Peter Lohberg, Wolfgang Fey, Michael Zydek, Stephan Bruggemann
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Publication number: 20040066184Abstract: A flux compensated rotational position detector includes a rotating element having a plurality of magnetic poles extending over its entire periphery, and a fixed element having a plurality of protruding fixed-element magnetic poles with fixed-element magnetic pole teeth opposing the rotating element, and first and second compensating poles disposed on either side of the fixed-element magnetic poles, the first and second compensating poles having respective first and second magnetic pole teeth opposing the rotating element, wherein the fixed element does not form a closed magnetic path around the entire periphery of the rotating element, magnetizing windings are provided on all of the first and second compensating poles and the fixed-element magnetic poles, and sine output and cosine output windings are provided on each of the fixed element magnetic poles. Methods for operating the detector are also described.Type: ApplicationFiled: March 26, 2003Publication date: April 8, 2004Inventors: Masahiro Kobayashi, Hiroyuki Kujirai
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Publication number: 20040066185Abstract: A method and apparatus for detecting relative movement of two system (S, S2) by using electromagnets induction (B, v, i) on a sensor with a defined magnetic field (Bm) and compensating for the influence of an external interfering magnetic field (Bs). The magnetic field (Bm) is generated in at least two areas (M, M2) with reversed polarity and a conductor arrangement is designed so that an addition induction effect (i, i2) occurs on the conductor and the external interfering field (B2) is corrected by the additive induction effect.Type: ApplicationFiled: June 5, 2003Publication date: April 8, 2004Applicant: Emile HelayelInventors: Gyoergy Csikos, Daniele Sartori
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Publication number: 20040066186Abstract: First and second GMR devices formed in a first block and fifth and sixth GMR devices formed in a third block are disposed in a symmetrical manner as to a point of origin. The first and fifth GMR devices, and the second and sixth GMR devices are disposed in a symmetrical manner as to the point of origin, and accordingly the intensity and direction of an external magnetic field applied from a rotating magnet is the equal between the first and fifth GMR devices, and also equal between the second and sixth GMR devices. Thus, combining the first, fifth, second, and sixth GMR devices to form a Wheatstone bridge circuit enables detection precision of rotation angles to be improved.Type: ApplicationFiled: September 26, 2003Publication date: April 8, 2004Applicant: ALPS ELECTRIC CO., LTD.Inventors: Yoshihiro Sudo, Hirofumi Okumura
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Publication number: 20040066187Abstract: A scale that includes a first base body having a first non-magnetizable support and a first set of magnetic elements that are arranged laterally next to the first non-magnetizable support, are magnetized in a single identical direction and are arranged in a measuring direction. A second base body having a second non-magnetizable support and a second set of magnetic elements that are arranged laterally next to the second non-magnetizable support, are magnetized in the single identical direction and area arranged in the measuring direction. The first base body and the second base body are put together such that in the measuring direction alternating ones of the first and second sets of magnetic elements are arranged and the first and second sets of magnetic elements have different magnetic orientations with respect to each other.Type: ApplicationFiled: July 17, 2003Publication date: April 8, 2004Inventors: Andreas Schroter, Michael Schwabe
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Publication number: 20040066188Abstract: Inductive sensors measure the near surface properties of conducting magnetic materials. The sensors generally include parallel winding segments to induce a spatially periodic magnetic field in a material under test. The sensors may provide a directionally dependent measure with measurements made in varying orientations of the sensor with respect to the material property variation directions. The sensors may be thin, conformable sensors that can be mounted on a test material and, for example, monitor crack initiation under the sensor. A second sensor may be left in air to provide a reference measurement, or the temperature of the material under test can be varied to verify the response of the individual sensing elements. Sensors can be mounted to materials under test in order to not modify the environment that is causing the stress being monitored.Type: ApplicationFiled: August 4, 2003Publication date: April 8, 2004Applicant: JENTEK Sensors, Inc.Inventors: Neil J. Goldfine, Darrell E. Schlicker, Karen E. Walrath, Andrew P. Washabaugh, Vladimir A. Zilberstein, Vladimir Tsukernik
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Publication number: 20040066189Abstract: A digital synthesizer generates an electrical digital carrier that is converted to analog and driven a probe coil to generate an electromagnetic wave propagated into a test material proximate the probe coil. A return electromagnetic wave generated by eddy currents in the material includes signatures of material defects modulated on the return carrier electromagnetic wave. The return wave is detected by one or more probe coils and amplified. A second amplifier is applied selectively amplifying the signal in segments such that each segment exploits the input range of the analog to digital converter. The signal is then converted from an analog signal to a digital signal and then digitally mixed with digital sine and cosine functions also generated by the digital synthesizer to yield sum and difference values. A gain scaling stage then trims the signal to overcome circuit imprecision such that the amplification in each respective segment is a power of two.Type: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Inventor: Estell Lopez
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Publication number: 20040066190Abstract: A method and apparatus for determining volume and anisotropy field distribution of thin film granular material includes the use of a magneto-optic probe, a lock-in amplifier, and a computer. The magneto-optic probe utilizes the Kerr effect in order to determine the transverse AC susceptibility of the sample. The Lock-in amplifier determines the complex parameters of the susceptibility as a function of the DC field and AC frequency. Separate distribution values of anisotropy field and grain volume can then be determined mathematically from the relationship of complex susceptibility parameters to the DC field strength.Type: ApplicationFiled: October 6, 2003Publication date: April 8, 2004Inventors: Ganping Ju, Roy W. Chantrell, Hong Zhou, Dieter K. Weller
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Publication number: 20040066191Abstract: An eddy current probe comprising two solenoid coils wound around a common rectangular wafer base of high permeability material extending beyond the coils at wafer corners with the wafer becoming the solenoid core. Posts also of high permeability material depend from a wafer front at its corners with coils crossing orthogonally on the wafer. The coils are connected to alternating current to produce magnetic fields that have like magnetic poles at wafer corners diagonally opposed across the wafer, the coils switching in phase to alternate the magnetic field between posts at base diagonal corners. With the posts at the wafer base corners, the combined magnetic fields generated from the orthogonal coils conduct through the posts and emanate from post ends. The post ends have a curvature matching that of a material to be tested for better coupling the magnetic field into the material.Type: ApplicationFiled: October 2, 2002Publication date: April 8, 2004Inventors: Christopher Hils, David Jonathan Brown
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Publication number: 20040066192Abstract: A method of reducing ringing artifacts in a nuclear magnetic resonance measurement is provided. The method utilizes a new pulse sequence that offers ringing cancellation opportunities as well as compensation for otherwise accumulating spin dynamics errors. Ringing cancellation is accomplished by forming linear combinations of spin echoes induced as a result of the pulse sequence. Because the linear combinations are formed between closely spaced spin echoes (i.e., echoes within the same sequence), the likelihood that the ringing artifact will have changed between measurements is diminished.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Inventor: Ralf Heidler
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Publication number: 20040066193Abstract: The present invention relates to devices and method for dissolving solid polarised material while retaining a high level of polarisation. In an embodiment of the present invention a material is polarised in a strong magnetic field in a cryostat 2 and then brought into solution while still inside the cryostat 2.Type: ApplicationFiled: August 29, 2003Publication date: April 8, 2004Inventors: Jan Henrik Ardenkjaer-Larsen, Oskar H.E. Axelsson, Klaes Koppel Golman, Georg Hansson, H. Johannesson, Rolf Servin, Mikkel Thaning, Lennart Hansson
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Publication number: 20040066194Abstract: A magnetic field generating assembly comprises a magnetic field generation system (7, 8) for generating, in a first mode, a first, relatively strong static magnetic field in a working volume (71) located outside the assembly, and for generating, in a second mode, a second, static magnetic field in the working volume in a second mode. In the second mode the magnetic field in the working volume (71) is weaker but more uniform than the first relatively strong magnetic field.Type: ApplicationFiled: July 11, 2003Publication date: April 8, 2004Inventors: Robert Andrew Slade, Robert Carter Hawkes, Alun J. Lucas, Ian Leitch McDougall
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Publication number: 20040066195Abstract: An antenna arrangement for a magnetic resonance device has a first antenna group, which includes at least one antenna element, and a second antenna group separated from the first antenna group, which likewise includes at least one antenna element. The antenna groups have respective cooperating coupler antenna parts that are fashioned and/or arranged such that, given a specific adjacent arrangement of the antenna groups with respect to one another, the coupler antenna parts form, by inductive coupling, a common boundary antenna element of the two antenna groups, which is inductively decoupled from the further antenna elements within the appertaining antenna groups. A corresponding method for coupling two antenna groups separated from one another employs such an antenna arrangement.Type: ApplicationFiled: September 23, 2003Publication date: April 8, 2004Applicant: Siemens AktiengesellschaftInventor: Arne Reykowski
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Publication number: 20040066196Abstract: A method is provided in which a correlation is made between a parameter indicating modification of a sampled malt in a germination process in which barley is germinated, and an ESR signal intensity of the sampled malt. The parameter is determined, in advance, by general analytical methods including chemical analytical methods. The ESR signal intensity is determined by measuring a peak height of spectrum of the sampled malt at a g value at which an unpaired electron derived from a carbon radical is resonant. The ESR signal intensity is a ratio of the measured peak height of spectrum to a peak height of spectrum of a reference, per a unit weight of the sampled malt. The modification state of the sampled malt can be evaluated based on the ESR signal intensity determined by electron spin resonance spectrometry. Kohlbach index, Hartong index at 45° C., diastatic power, &bgr;-glucan content, viscosity, and friability may be used as the parameter.Type: ApplicationFiled: August 4, 2003Publication date: April 8, 2004Inventors: Hirotaka Kaneda, Kiyoshi Takoi, Naoko Nishita, Junko Yoshimura
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Publication number: 20040066197Abstract: A rotation detection sensor, which is a wheel-speed sensor (21), has a detection unit (7) placed in a metal capped cylindrical casing (1) and a holder (2) fit in an opening (1a) of the casing (1). A flange (11) is provided along the entire edge of the opening (1a) of the casing (1). Between the flange (11) and the holder (2), a viscoelastic liquid gasket (sealing material) (12) is entirely applied. The edge of the opening (1a) of the casing (1) and the exposed part of the holder (2) are covered with a resin portion (4). Thus, the viscoelastic liquid gasket (12) smoothly enters the gap between the casing (1) and the holder (2) to ensure the closedness between the casing (1) and the holder (2). Moreover, since the viscoelastic liquid gasket (12) is quickly cured owing to its solvent which is speedily volatilized, the gasket exhibits a good workability. Then, after the solvent is volatilized, a rubber-based elastic sealing material is produced.Type: ApplicationFiled: August 28, 2003Publication date: April 8, 2004Inventors: Yoshifumi Matsumoto, Masashi Sugimoto
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Publication number: 20040066198Abstract: An ignition coil durability testing apparatus and method utilizing an electronic spark timing circuit, a plurality of SCRs, a plurality of LEDs, and a voltage detection circuit. The electronic spark timing circuit activates an ignition switching transistor which applies a time varying voltage to a primary winding of an ignition coil. The plurality of SCRs are connected in series. A sustaining voltage device in the form of a spark gap or zener box is connected in series with the plurality of SCRs. The secondary winding of the ignition coil is connected to one end of the spark gap or an input of the zener box and to one input of a comparator through a voltage divider and a voltage reference is also connected to the other input of the comparator. When the output voltage of the secondary winding exceeds a preset breakdown voltage, the comparator turns on the plurality of LEDs which activate the plurality of SCRs.Type: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Inventors: Raymond O. Butler, Ronald J. Kiess
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Publication number: 20040066199Abstract: A method of using experimental data determines the structure and voltage dependence of transition rates for states in models of ion channels.Type: ApplicationFiled: June 6, 2003Publication date: April 8, 2004Inventor: Paul A. Rhodes
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Publication number: 20040066200Abstract: A vehicular alternator failure determination apparatus is capable of making a failure determination accurately. The apparatus includes a maximum voltage detection part (1) for detecting a maximum voltage of an alternator commutating device which commutates an AC output of the alternator driven by an engine, a minimum voltage detection part (2) for detecting a minimum voltage of the alternator commutating device, a voltage difference calculation part (3) for detecting a difference voltage from outputs of the maximum and minimum voltage detection parts, and a failure determination part (4) which determines that the alternator is in a failure state, when an output of the voltage difference calculation part is equal to or greater than a prescribed voltage.Type: ApplicationFiled: March 7, 2003Publication date: April 8, 2004Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Hiroshi Fujioka, Takanori Matsunaga, Takashi Maeda, Toshinori Matsui
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Publication number: 20040066201Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: ApplicationFiled: August 15, 2003Publication date: April 8, 2004Inventors: Michael G. Ennis, Raymond P. O' Leary, Joseph W. Ruta
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Publication number: 20040066202Abstract: A tester for testing multiconductor cable having a first tester is connectable to a first end of the multiconductor cable. The first tester produces one or more test signals individually on each conductor of the cable. A second tester is connectable to the second end of the cable at a remote location. The second tester monitors each of the plurality of separate conductors to detect the test signals produced by the first tester. Preferably, a first wireless transceiver is provided for the first tester that wirelessly transmits control signals to automatically coordinate testing procedure control. A second wireless transceiver joined to the second tester wirelessly transmits test result data.Type: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Inventors: Fernando J. Pereira, Raymond U. Huot
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Publication number: 20040066203Abstract: An apparatus for the determination of the magnitude of a noise (TDUT) of an electronic object to be measured (2) includes a sine signal source (1), which generates a sine signal (Sin) for input into said object to be measured (2) and a level meter (3) for the measurement of a power level at the output of the said object to be measured (2). In accord with the invention, the level meter (3) possesses a sine power detector device (31) for the capture of a sine power level ({circumflex over (P)}sin) and has a noise power level detector device (32) for a separate capture of a noise power level ({circumflex over (P)}noise).Type: ApplicationFiled: June 27, 2003Publication date: April 8, 2004Inventors: Hermann Boss, Kurt Schmidt, Markus Freidhof
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Publication number: 20040066204Abstract: Apparatus for non-contact determination of wafer resistance of a semiconductor wafer includes a first sensor element, separated from a surface of the wafer by a first air gap, for capacitively coupling an AC drive signal into a portion of the wafer. A second sensor element, separated from the surface of the wafer by a second air gap, capacitively couples an AC output signal out of the wafer portion. An inductor, in series connection with the sensor elements is included in the sensor/wafer circuit. A frequency of the AC drive signal is automatically tuned to a resonant frequency at which capacitance impedance of the first air gap and of the second air gap is canceled by inductive impedance of the inductor. A voltage value of the drive signal required to drive an AC current signal of fixed magnitude through the wafer portion is automatically determined. The voltage value provides a measure of wafer resistance.Type: ApplicationFiled: October 3, 2002Publication date: April 8, 2004Applicant: MTI Instruments Inc.Inventor: Richard Dorman
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Publication number: 20040066205Abstract: An inspection voltage imposer generates an inspection voltage by multiplying fundamental voltage string data in which a certain voltage output pattern where an average of output voltage levels in one period becomes 0 is set by data of a modulation signal whose value varies every period and impose the inspection voltage on a drive voltage of a motor. When the inspection voltage is imposed on the drive voltage of the motor, an angle detector detects the rotor angle of the motor based on the fundamental voltage string data, a variation of an inspection current and the data of the modulation signal in respective control cycles.Type: ApplicationFiled: September 25, 2003Publication date: April 8, 2004Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Nobuyuki Imai, Yutaka Takahashi
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Publication number: 20040066206Abstract: A wafer integrated plasma diagnostic method for a semiconductor wafer processing system provides a multiplicity of plasma probe assemblies arranged on a wafer in a planar array fashion such that one plasma probe assembly is located in the center and eight more plasma probe assemblies are located at intermediate positions such that they lie along the radius from the center to the corners; such corners forming four corners of a square box near the edge of the wafer. Method operations provide at each location and in each of the plasma probe assemblies, six possible probe elements having a relative geometrical area such that the assemblies may make simultaneous measurements of both spatial resolution and real time measurement of different plasma characteristics at the wafer surface, such as: D.C. potential, A.C. potential, shading induced potentials, ion fluxes, ion energy distribution, and the electron part of the I-V Langmuir probe characteristic.Type: ApplicationFiled: October 6, 2003Publication date: April 8, 2004Inventor: Neil Benjamin
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Publication number: 20040066207Abstract: A flexible DUT interface assembly is presented. The DUT interface assembly includes a DUT interface board with a plurality of slots to accommodate inserted circuit cards for providing a plurality of different test functions, a socket adapter card to accommodate a plurality of DUTs via a plurality of sockets and to provide the interface between the DUTs and the DUT interface board, and an interposer to provide the required space for the inserted circuit cards between the DUT interface board and a test head module. The modular characteristics of the assembly parts (i.e., DUT interface board, socket adapter, and interposer) and their sub-components allows configuration (e.g., DUTs, test functions, etc.) and repair to be rapidly and easily carried out. The interposer allows external environmental factors around close-coupled instruments, such as temperature, humidity, and electrical noise, to be easily monitored and controlled.Type: ApplicationFiled: October 5, 2002Publication date: April 8, 2004Inventors: Wilmer R. Bottoms, Cran D. Cowan
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Publication number: 20040066208Abstract: The present invention is related to method and apparatus for on-die noise detection that includes one more voltage noise sensors, and one or more associated comparators. The voltage noise sensor includes a circuit including devices designed to position an initial voltage level of nodes between the devices at certain levels. The nodes are paired where the initial level of one node is above the initial level of the other node in the pair. The devices are designed to position the initial voltage levels of nodes of each pair such that the occurrence of noise above a predefined threshold voltage causes at least one of the voltage levels at the pair of nodes to approach and pass the other. The comparator monitors the voltage levels of each pair of nodes and generates a trigger signal upon detection of the voltage levels at a pair of nodes passing each other.Type: ApplicationFiled: October 7, 2002Publication date: April 8, 2004Inventors: Jonathan H. Liu, Wonjae L. Kang
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Publication number: 20040066209Abstract: To measure the current consumption of a circuit device with a current measuring device, the circuit device being supplied by a current/voltage supply line device, as simply as possible without the need for additional measuring devices, an integrated circuit configuration includes integrating the circuit configuration, the current measuring device, and, also, the current/voltage supply line device in a common chip and forming the current measuring device with a Hall sensor device.Type: ApplicationFiled: September 30, 2003Publication date: April 8, 2004Inventors: Peter Beer, Carsten Ohlhoff
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System and method for effectively implementing an active termination circuit in an electronic device
Publication number: 20040066210Abstract: A system and method for effectively transferring electronic information in an electronic device may include a transmission line that connects a source device and a destination device. The foregoing transmission line may be implemented to include a conductor A and a conductor B for transferring the electronic information. One or more active termination circuits may coupled to conductor A and conductor B for being dynamically switched between a differential mode termination configuration and a single-ended mode termination configuration with respect to the transmission line. Control logic may be configured to dynamically place the active termination circuit into the foregoing differential mode termination configuration during a differential transmission mode. Alternately, the control logic may place the active termination circuit into the foregoing single-ended mode termination configuration during a single-ended transmission mode.Type: ApplicationFiled: December 16, 2002Publication date: April 8, 2004Applicants: Sony Corporation, Sony Electronics, Inc.Inventor: Rehan A. Zakai -
Publication number: 20040066211Abstract: There is provided an apparatus for generating an input signal for a cable that is mismatched on an output side. The apparatus has a line driver for connecting to an input of the cable via a resistor. The line driver includes a controller that, depending on a data input signal, is for triggering (a) a first switch to apply a supply voltage at an input of the resistor, (b) a second switch to apply a reference potential at the input of the resistor, and (c) a third switch to apply an auxiliary voltage at the input of the cable, all of them at predeterminable points in time, in order to minimize power dissipation in the resistor.Type: ApplicationFiled: July 31, 2003Publication date: April 8, 2004Applicant: IC-HAUS GmbH.Inventor: Manfred Herz
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Publication number: 20040066212Abstract: A programmable logic array integrated circuit has a number of programmable logic modules which are grouped together in a plurality of logic array blocks (“LABs”). The LABs are arranged on the circuit in a two dimensional array. A conductor network is provided for interconnecting any logic module with any other logic module. In addition, adjacent or nearby logic modules are connectable to one another for such special purposes as providing a carry chain between logic modules and/or for connecting two or more modules together to provide more complex logic functions without having to make use of the general interconnection network. Another network of so-called fast or universal conductors is provided for distributing widely used logic signals such as clock and clear signals throughout the circuit. Multiplexers can be used in various ways to reduce the number of programmable interconnections required between signal conductors.Type: ApplicationFiled: January 31, 2003Publication date: April 8, 2004Applicant: Altera CorporationInventors: Richard G. Cliff, L. Todd Cope, Cameron R. Mc Clintock, William Leong, James A. Watson, Joseph Huang, Bahram Ahanin
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Publication number: 20040066213Abstract: Integrated circuit devices include data inversion circuits therein that are configured to evaluate at least first and second ordered groups of input data in parallel with an ordered group of output data previously generated by the data inversion circuit. The data inversion circuit is further configured to generate inverted versions of the first and second ordered groups of input data whenever a number of bit differences between the first ordered group of input data and the ordered group of output data is greater than one-half a size of the first ordered group of input data and a number of bit differences between the second ordered group of input data and the inverted version of the first ordered group of input data is greater than one-half a size of the second ordered group of input data, respectively.Type: ApplicationFiled: March 26, 2003Publication date: April 8, 2004Inventors: Jin-seok Kwak, Seong-jin Jang
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Publication number: 20040066214Abstract: Clocked full-rail differential logic circuits with sense amplifier and shut-off are activated by a delayed clock and include a sense amplifier circuit that is triggered by a second delayed clock and a shut-off device. The addition of the sense amplifier circuit, and second delayed clock signal allows the sense amplifier circuit to act as the driver and therefore there is no need for increasing the size of the differential logic network to provide a driver function. The addition of the shut-off device provides a full-rail differential logic circuit with shut-off that does not experience the large “dip” experienced by prior art full-rail differential logic circuits and is therefore more power efficient.Type: ApplicationFiled: October 4, 2002Publication date: April 8, 2004Applicant: Sun Microsystems, Inc.Inventors: Swee Yew Choe, Edgardo F. Klass