Patents Issued in June 24, 2008
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Patent number: 7391261Abstract: Systems and methods are provided for amplifying a composite input signal, comprising a drive signal and an envelope signal, at a power amplifier. A secondary modulation, representing a portion of the composite input signal falling outside of a frequency band associated with the envelope signal, is produced for the drive signal. The secondary modulation is applied to the drive signal. The drive signal is amplified at the power amplifier to produce an amplified signal. At least a portion of the envelope signal is employed to drive a supply terminal of the power amplifier.Type: GrantFiled: December 16, 2005Date of Patent: June 24, 2008Assignee: Harris CorporationInventor: Timothy Wilfred Dittmer
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Patent number: 7391262Abstract: Amplifier circuitry includes an input stage having a transconductance stage including first and second input transistors and a first tail current source, gates of the first and second input transistors being coupled to first and second input signals, respectively. A bulk electrode capacitance driver includes third and fourth input transistors and first and second associated cascode transistors and a second tail current source coupled to the sources and bulk electrodes of the third and fourth input transistors and to the bulk electrodes of the first and second input transistors. The gates of the third and fourth input transistors are coupled to the first and second input voltage signals, respectively, and the gates of the first and second cascode transistors are coupled to the second and first input voltage signals, respectively.Type: GrantFiled: April 25, 2006Date of Patent: June 24, 2008Assignee: Texas Instruments IncorporatedInventor: Haoran Zhang
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Patent number: 7391263Abstract: An operational amplifier 1 is provided with differential amplifier 2, replica amplifier 3, voltage-current converting circuit 4, reference current source 5 and comparator 6. Differential amplifier 2 includes P-channel MOS transistors PT1 and PT2, gate and drain electrodes of which are connected to each other to function as loads, and N-channel MOS transistors NT1, NT2 and NT3. Replica amplifier 3 is identical in structure to differential amplifier and also includes P-channel MOS transistors PT11 and PT12, gate and drain electrodes of which are connected to each other to function as loads, and N-channel MOS transistors NT11, NT12 and NT13. Voltage-current converting circuit 4 converts output voltages of replica amplifier 3 to current Irep. Comparator 6 compares output current Irep of voltage-current converting circuit 4 with reference current Iref of reference current source 5 and supplies compared current Ico to differential amplifier 2 to keep bias current Ibias of differential amplifier 2 constant.Type: GrantFiled: August 29, 2006Date of Patent: June 24, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Masayuki Koizumi, Hiroyuki Shibayama
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Patent number: 7391264Abstract: The objective of the invention is to automatically and dynamically change the slew rate corresponding to the change rate and amplitude of the input signal. In this operational amplifier, when voltage (Vin) of the input signal is high, or when it changes drastically, at the time the voltage difference between the input signal and the output signal (Vout?Vin) exceeds prescribed value (VF), in constant current circuit (12), switch controller (22) turns ON switch (20). As a result, operation current amplifier (16) operates, and current (IE) of constant current source (14) is amplified with a positive feedback loop. By means of positive feedback amplification of the current (IE), slew rate (SR) rises drastically from the reference value that has been adopted, and output voltage (Vout) immediately follows input voltage (Vin).Type: GrantFiled: November 30, 2005Date of Patent: June 24, 2008Assignee: Texas Instruments IncorporatedInventor: Hiroshi Watanabe
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Patent number: 7391265Abstract: An amplifier unit is provided, with which the need for manufacturing a photoelectric conversion IC in Bi-CMOS process is eliminated, and relatively low process cost of the photoelectric conversion IC is achieved. The input section of a buffer (the base of a transistor Q5) is connected with a plurality of patterns of phase compensation circuits each including a resistor and a capacitor connected in series. A bipolar transistor (Q6) is interposed between a positive power supply line and a capacitor (C2) forming a capacitance of the phase compensation circuit. By switching on/off the bipolar transistor (Q6), the capacitance value and resistance value of the phase compensation circuit are switched. Since the bipolar transistor (Q6) is interposed between the capacitor (C2) and the positive power supply line, base current (Isw) acting as a switch signal does not affect the amplifier unit.Type: GrantFiled: May 9, 2006Date of Patent: June 24, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shinichi Miyamoto, Yousuke Kuroiwa, Masaya Ueda, Hideo Fukuda, Hiroshi Yamaguchi, Masaki Taniguchi
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Patent number: 7391266Abstract: Protection for the transmission of higher amplitude outputs required of differential amplifiers formed by thin oxide transistors with limited maximum voltage tolerance used where compliance with communication protocol standards requires handling voltages which may, in transition, exceed desirable levels is provided by limiting the voltage across any two device terminals under power down conditions.Type: GrantFiled: September 14, 2006Date of Patent: June 24, 2008Assignee: International Business Machines CorporationInventors: Hayden C. Cranford, Jr., Carrie E. Cox
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Patent number: 7391267Abstract: A patterning area of an output circuit is reduced while securing strong enough ESD tolerance. In the output circuit of this invention, an output of a first amplifier and an output of a second amplifier are connected to a common output pad. Each of the amplifiers is driven by each of signals ?1 and ?2 from an internal circuit, respectively. The first amplifier has larger driving capacity than the second amplifier. A high voltage side power supply terminal of the second amplifier is provided with a power supply voltage VDD from a power supply pad through a first protection resistor, while a low voltage side power supply terminal of the second amplifier is provided with a ground voltage VSS from a ground pad through a second protection resistor. And a third protection resistor is connected between an output of the second amplifier and an output terminal. The first, second and third protection resistors are made of metal wirings, and their resistance is preferably about 10?.Type: GrantFiled: July 13, 2005Date of Patent: June 24, 2008Assignee: SANYO Electric Co., Ltd.Inventors: Kazumasa Akai, Yukio Kin, Tomoko Ishizuka
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Patent number: 7391268Abstract: A power amplifying device includes a stabilizing circuit between an input terminal and an amplifier. The stabilizing circuit has a first line, a second line, and a third line. The first line is connected to the ground. The length of the first line is equal to or longer than three fourths of the wavelength of the operating frequency.Type: GrantFiled: June 6, 2006Date of Patent: June 24, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Junichi Udomoto
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Patent number: 7391269Abstract: The invention provides an amplifying circuit for reducing electric power consumption at a standby mode time. Therefore, in DMOS and NMOS transistors constituting a cascode amplifier, the gate of the DMOS transistor of an initial stage is biased to a grounding voltage through a resistor, and the source of the DMOS transistor is connected to the output side of an inverter through an inductor. When a control signal is set to a level “H”, the output of the inverter becomes a level “L”, and the DMOS transistor attains a turning-on state and a sufficient operating electric current is flowed to the cascode amplifier. Thus, an input signal is amplified and is outputted as an output signal. In contrast to this, when the control signal is set to the level “L”, the output of the inverter becomes the level “H”, and the DMOS transistor attains a turning-off state and the operating electric current of the cascode amplifier is stopped.Type: GrantFiled: August 17, 2005Date of Patent: June 24, 2008Assignee: Oki Electric Industry Co., Ltd.Inventor: Tadashi Chiba
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Patent number: 7391270Abstract: A phase locked loop is disclosed and includes a frequency divider circuit with a settable division ratio in a feedback path. The division ratio is produced using a control circuit which, besides an input for supplying the integer and fractional components for the frequency division ratio which is to be set, includes an input for supplying a phase correction signal. To produce the phase correction signal, the phase locked loop further includes a phase correction apparatus. The phase correction signal preferably contains a signal component with an exponential profile, and is supplied to the control circuit for producing a frequency division ratio for the frequency divider circuit such that it compensates for a phase drift in the output signal from the voltage controlled oscillator in the phase locked loop.Type: GrantFiled: March 22, 2005Date of Patent: June 24, 2008Assignee: Infineon Technologies AGInventors: Burkhard Neurauter, Günter Märzinger, Christian Münker, Roland Vuketich
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Patent number: 7391271Abstract: Jitter method and control circuit for a circuit block in a transceiver system having a phase lock loop circuit which includes an oscillator, a charge pump connected to the oscillator to add or subtract charge to or from said oscillator, and a low pass filter connected to said charge pump are provided. Circuitry is connected to the output of the oscillator and the input of the charge pump to control the amount of charge added to or subtracted from the charge pump to control the bandwidth output by the oscillator and thereby reduce jitter in the phase lock circuit.Type: GrantFiled: June 22, 2006Date of Patent: June 24, 2008Assignee: International Business Machines CorporationInventors: Hayden C Cranford, Jr., Ram Kelkar, Anjali R Malladi, Martin L Schmatz, Nina A Shah
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Patent number: 7391272Abstract: A voltage controlled oscillator includes a resonant circuit, a trimming capacitor and a full adder. The resonant circuit includes a negative resistor, an inductor and an oscillation frequency setting capacitor having a variable capacitance according to a controlled voltage based on a oscillation frequency data. The trimming capacitor is connected in parallel to the oscillation frequency setting capacitor. The trimming capacitor has capacitors each of which has a variable capacitance according to an input signal thereof. The full adder is connected to the trimming capacitor. The full adder generates the input signal based on frequency information and an automatic proofreading value received thereto.Type: GrantFiled: November 23, 2005Date of Patent: June 24, 2008Assignee: Oki Electric Industry Co., Ltd.Inventors: Ken Fujita, Yuko Murase
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Patent number: 7391273Abstract: The clock signal output device has a crystal oscillator for generating a reference clock signal and generating and outputting an output clock signal having a prescribed frequency on the basis of the reference clock signal. The device also has an atomic oscillator for generating a clock signal having higher precision than a crystal oscillator, an intermittent time management unit for intermittently driving the atomic oscillator, and a correction unit for receiving correction data for correcting the offset amount of the output clock signal on the basis of a clock signal each time the atomic oscillator is driven, and correcting the output clock signal on the basis of the correction data.Type: GrantFiled: February 24, 2006Date of Patent: June 24, 2008Assignee: Seiko Epson CorporationInventors: Shigeaki Seki, Katsutoyo Inoue
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Patent number: 7391274Abstract: Methods and circuits for chain ring oscillators having a constant delay time over variations of temperature and variations of semiconductor manufacturing process while requiring low operating voltage only have been disclosed. A system current source includes a constant voltage circuit generating a constant voltage and hence a constant current via a resistance element. Main parts of the constant voltage circuit are an operational amplifier and a bandgap reference circuit. Using a series of current mirrors the constant currents are mirrored to current sources contained in each of n-inverter stages of the chain ring oscillator.Type: GrantFiled: March 30, 2005Date of Patent: June 24, 2008Assignee: Etron Technology, IncInventor: Jenshou Hsu
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Patent number: 7391275Abstract: Circuits and methods for generating an oscillator output. The circuit generally includes a ring oscillator, with a series of inverters connected in series and an LC resonator tank (or a variable resistance) coupled to the input and output of the inverter series. The method generally includes the steps of applying an operating voltage to such a circuit and generating an oscillator signal. The circuits and methods may be employed as a VCO component of a phase-locked loop. The upper limit of the oscillator signal frequency may be configured by altering or controlling the variable resistance and/or one or more parameters of the LC resonator tank. The circuit design demonstrates a high tolerance to variations in circuit or circuit component values.Type: GrantFiled: July 18, 2005Date of Patent: June 24, 2008Assignee: Seiko Epson CorporationInventor: George Jordy
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Patent number: 7391276Abstract: In an oscillation apparatus formed by a ring oscillator including an odd number of inverters (more than two inverters) connected in a ring, each of the inverters having one drive MOS transistor and one load MOS transistor, a constant voltage generating circuit is adapted to generate a constant voltage corresponding to a threshold voltage of the drive MOS transistor, and a voltage-to-current converting circuit is adapted to convert the constant voltage into load currents. Each of the load currents flows through the load MOS transistor of one of the inverters.Type: GrantFiled: October 12, 2005Date of Patent: June 24, 2008Assignee: NEC Electronics CorporationInventor: Makoto Sakaguchi
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Patent number: 7391277Abstract: An interleaved voltage-controlled oscillator (VCO) is disclosed. The VCO includes a ring circuit comprising a series connection of main logic inverter gates, a plurality of delay elements connected in parallel with a selected sequence of the main logic inverter gates, at least one temperature compensation circuit comprising a logic inverter gate in series connection with one or more field effect transistors, the field effect transistor responsive to a compensating voltage input that is proportional to temperature, and an electronic circuit in signal communication with the at least one temperature compensation circuit and configured to provide a voltage signal responsive to temperature. Each delay element includes a feedforward section, comprising controls for regulating signal transmission through feedforward elements responsive to one or more control voltages, and a proportional section, comprising controls for regulating signal transmission through at least one logic inverter gate.Type: GrantFiled: July 20, 2006Date of Patent: June 24, 2008Assignee: International Business Machines CorporationInventors: David W. Boerstler, Eskinder Hailu, Jieming Qi, Mike Shen
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Patent number: 7391278Abstract: Embodiments of the invention provide a low-power, high-gain amplifier for a crystal oscillator. In some embodiments, the oscillator amplifier circuit comprises two NMOS transistors stacked in series with a PMOS transistor. In various embodiments, each of the NMOS transistors is diode-connected through a resistor and has the input signal capacitively coupled onto its control terminal. The stacked amplifier raises the DC level of the amplified oscillatory signal and can support a substantial oscillation amplitude without clipping.Type: GrantFiled: July 31, 2006Date of Patent: June 24, 2008Assignee: Freescale Semiconductor, Inc.Inventor: Michael Berens
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Patent number: 7391279Abstract: A bypass capacitance is connected to a node between first and second self-bias resistances connected in series between an input and an output of an inverter. The bypass capacitance accommodates changes in the output voltage of the inverter to suppress the feedback effect from the output side to the input side of the inverter. That is, the bypass capacitance plays the role of suppressing a decrease in the input impedance by the Miller effect.Type: GrantFiled: May 10, 2006Date of Patent: June 24, 2008Assignee: Interchip CorporationInventor: Masaaki Kamiya
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Patent number: 7391280Abstract: A circuit and a method for performing pulse width modulation are provided. A pulse density modulator (PDM) is applied to receive the least N bits of the input data and to generate a pulse density modulation signal. The number of pulse of the pulse density modulation signal in 2^N frames correspond to a value of the least N bits of the input data. An adder is applied to generate a PWM data by adding a value of the most M bits of the input data to a value of the pulse density modulation signal generated by the PDM. A pulse width modulator is applied to generate a PWM signal dithering in 2^N frames according to the PWM data generated by the adder, so as to improve the audio quality of pulse width modulation and the Electro-Magnetic Interference (EMI) phenomenon.Type: GrantFiled: May 10, 2004Date of Patent: June 24, 2008Assignee: Sunplus Technology Co., Ltd.Inventor: Ham-Huah Hsu
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Patent number: 7391281Abstract: A method for suppressing the resonant effect between capacitors connected in parallel is disclosed. By adjusting the length of the transmission line of the shunt capacitors, the performance of the shunt capacitors, which can be applied on various types of filtering circuits, can be improved in the desired bandwidth.Type: GrantFiled: May 22, 2006Date of Patent: June 24, 2008Assignee: Tatung CompanyInventors: Shih-Chieh Chao, Chih-Wen Huang, Chun-Lin Liao
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Patent number: 7391282Abstract: Switch sections composed of a plurality of FETs 111 to 118 and 121 to 128 connected in series are provided between input/output terminals 161 and 162 and ground terminals 181 and 182, and between the input/output terminals 161 to 163. A plurality of gate bias resistors 131 to 138, 141 to 148 are also provided. One terminal of each gate bias resistor is connected to a gate electrode of a corresponding one of the FETs 111 to 118 and 121 to 128, while a control voltage 171 and 172 for switching an ON state and an OFF state of the switch section is applied to the other terminal. Among the FETs included in each switch section, concerning the FETs 114, 115, 124, and 125 to which signal power is applied when the switch section is in the OFF state, the gate bias resistors 134, 135, 144, and 145 connected to the gate electrodes are set to have a highest resistance value.Type: GrantFiled: November 17, 2005Date of Patent: June 24, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadayoshi Nakatsuka, Masashi Miyagi
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Patent number: 7391283Abstract: An SPNT switch has at least two operating states and comprises N circuit branches. Each circuit branch comprises a first input/output port connected to a second input/output port via a series active device, and a phase shifting component connected in series with a shunt active device. When the shunt active device is in an on state, the reflection co-efficient due to a path to ground from the series active device via the phase shifting component and the shunt active device is +1. At least one DC terminal controls the state of the active devices, whereby in one of the operating states of the switch, both active devices are in the on state simultaneously, and in another of the operating states, both active devices are in an off state simultaneously.Type: GrantFiled: November 29, 2005Date of Patent: June 24, 2008Assignee: TDK CorporationInventor: Brian Kearns
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Patent number: 7391284Abstract: A high-frequency switch includes a transmission terminal, an antenna terminal, a reception terminal, and a voltage-control terminal; a first diode, the cathode thereof being electrically connected to the transmission terminal, and the anode being electrically connected to the antenna terminal; a first transmission line, electrically connected between the antenna terminal and the reception terminal; a second diode, the cathode thereof being electrically connected to the reception terminal, and the anode being electrically connected to the voltage-control terminal; a second transmission line, one end thereof being electrically connected to the transmission terminal, and the other end being connected to ground; and a capacitor, electrically connected between the voltage-control terminal and ground. The above high-frequency switch can be miniaturized and has superior performance.Type: GrantFiled: January 12, 2005Date of Patent: June 24, 2008Assignee: Murata Manufacturing Co., Ltd.Inventor: Mitsuhide Kato
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Patent number: 7391285Abstract: One embodiment of the film acoustically-coupled transformer (FACT) includes a decoupled stacked bulk acoustic resonator (DSBAR) having a lower film bulk acoustic resonator (FBAR) an upper FBAR stacked on the lower FBAR, and, between the FBARs, an acoustic decoupler comprising a layer of acoustic decoupling material. Each FBAR has opposed planar electrodes with a piezoelectric element between them. The FACT additionally has first terminals electrically connected to the electrodes of one FBAR and second terminals electrically connected to the electrodes of the other FBAR. Another embodiment has decoupled stacked bulk acoustic resonators (DSBARs), each as described above, a first electrical circuit interconnecting the lower FBARs, and a second electrical circuit interconnecting the upper FBARs. The FACT provides impedance transformation, can linking single-ended circuitry with balanced circuitry or vice versa and electrically isolates primary and secondary.Type: GrantFiled: October 13, 2004Date of Patent: June 24, 2008Assignee: Avago Technologies Wireless IP Pte LtdInventors: John D. Larson, III, Richard C. Ruby, Stephen L. Ellis
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Patent number: 7391286Abstract: A film acoustically-coupled transformer (FACT) has a first and a second stacked bulk acoustic resonator (SBAR 1, SBAR 2). Each SBAR has a stacked pair of film bulk acoustic resonators (FBARs) and an acoustic decoupler between the FBARs. Each FBAR has opposed planar electrodes and a layer of piezoelectric material between the electrodes. A first electrical circuit connecting one of the FBARs of SBAR1 to one of the FBARs of SBAR 2 and a second electrical circuit connecting the other of the FBARs of SBAR 1 to the other of the FBARs of SBAR 2. The first electrical circuit connects the respective FBARs in parallel and second electrical circuit connects the respective FBARs in series. A shunt inductor is included from the reception path to ground.Type: GrantFiled: October 6, 2005Date of Patent: June 24, 2008Assignee: Avago Wireless IP Pte LtdInventors: Tiberiu Jamneala, Michael Louis Frank, Paul D Bradley
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Patent number: 7391287Abstract: The invention proposes an H-plane filter with inductive irises which exhibits a quasi-elliptic response while retaining the same compactness as a filter having a Chebyshev response. The invention furthermore makes it possible to use a large number of transmission zeros. For this purpose, there is proposed a waveguide filter comprising at least one cavity delimited by at least two inductive irises. The filter furthermore comprises at least one floating insert 1 placed in one of the inductive irises. The invention is also a process for manufacturing the waveguide filter incorporating at least one insert.Type: GrantFiled: November 26, 2003Date of Patent: June 24, 2008Assignee: Thomson LicensingInventors: Dominique Lo Hine Tong, Charline Guguen, Walid Karoui
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Patent number: 7391288Abstract: A high frequency resonator circuit and method of fabrication is described which has a resonant frequency independent of physical resonator dimensions. The resonator operates in a zeroeth-order mode on a composite right/left-handed (CRLH) transmission line (TL). The LH wave properties of the CRLH-TL contributing anti-parallel phase and group velocities. In one variation, the unit cells are formed from microstrip techniques, preferably creating alternating interdigitated capacitors and stub inductors. The resonant wavelength of the resonator is dependent on the electrical characteristics of the unit cells and not the physical size of the resonator in relation to the desired resonant wavelength. The resonator is created with at least 1.5 unit cells and the Q of the resonator is substantially independent of the number of unit cells utilized. The resonator circuit is particularly well suited for reducing resonator size, and allows resonators of various wavelengths to be fabricated within a fixed board area.Type: GrantFiled: April 18, 2007Date of Patent: June 24, 2008Assignee: The Regents of the University of CaliforniaInventors: Tatsuo Itoh, Atsushi Sanada, Christophe Caloz
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Patent number: 7391289Abstract: Certain exemplary embodiments comprise a device comprising: a trip mechanism adapted to engage an operating mechanism of an alternating current circuit breaker, said trip mechanism comprising: a bi-metal element arranged lengthwise into a first end zone, a central zone, and a second end zone, a load bus coupled to said first zone, said second end zone adapted to engage an armature latch that is adapted to trip on operating mechanism of the circuit breaker; and an electromagnetic element coupled to the load bus.Type: GrantFiled: August 1, 2005Date of Patent: June 24, 2008Assignee: Siemens Energy & Automation, Inc.Inventors: Brian Timothy McCoy, Thomas William Holland
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Patent number: 7391290Abstract: A latching micro magnetic switch includes a magnet located proximate to a supporting structure. The magnet produces a first magnetic field with field lines symmetrically spaced about a central axis or non-uniform field lines. The switch also includes a cantilever supported by the supporting structure. The cantilever has a magnetic material and a longitudinal axis. The magnetic material makes the cantilever sensitive to the first magnetic field, such that the cantilever is configured to move between first and second states. The switch further includes a conductor located proximate to the supporting structure and the cantilever. The conductor is configured to conduct a current. The current produces a second magnetic field, which causes the cantilever to switch between the first and second states.Type: GrantFiled: September 6, 2005Date of Patent: June 24, 2008Assignee: Schneider Electric Industries SASInventors: Jun Shen, Meichun Ruan
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Patent number: 7391291Abstract: It is an object of the present invention to provide a rare earth magnet that will not decompose due to hydrogen embrittlement when used in a hydrogen gas atmosphere, and furthermore, does not pose the risk of contaminating a reaction bath with the surface treated film of the magnet. The present invention provides a sealed rare earth magnet comprising: a rare earth magnet; and a case of aluminum or aluminum alloy, wherein the case covers entirety of the rare earth magnet and is sealed by HIP; and the methods for manufacturing the same.Type: GrantFiled: February 22, 2005Date of Patent: June 24, 2008Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Koji Miyata
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Patent number: 7391292Abstract: An on-chip inductor includes a main inductor portion configured to provide a main magnetic field of an on-chip inductor. An interconnect inductor portion is electrically coupled to the main inductor portion and is configured to provide an interconnect magnetic field that constructively combines with the main magnetic field.Type: GrantFiled: May 5, 2004Date of Patent: June 24, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Shigenobu Maeda, Jeong-hwan Yang
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Patent number: 7391293Abstract: A transformer and method of making includes first half primary and secondary windings as metallic circuits that are etched on a metallic cladding of a first liquid crystal polymer (LCP) sheet. Secondary windings are positioned in spaced relation to the primary windings. A second LCP sheet is applied over the first LCP sheet. Second half primary and secondary windings are etched as metallic circuits on a metallic cladding of a second LCP sheet. Respective first and second half primary windings are interconnected to each other and the first and second half secondary windings are connected to each other by conductive vias.Type: GrantFiled: August 15, 2007Date of Patent: June 24, 2008Assignee: Harris CorporationInventor: Steven R. Snyder
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Patent number: 7391294Abstract: A winding for a toroidal electrodynamic machine is formed by providing a set of bobbins in a rectilinear array, winding the bobbins so that each phase is of one continuous wire, with each set of phases wound one bobbin at a time, the completed rectilinear array then being formed into a circular array for the machine. The rectilinear array has bobbins formed and is wired in such a way that bending into a torus is possible.Type: GrantFiled: December 12, 2003Date of Patent: June 24, 2008Assignee: Wellington Drive Technologies LimitedInventors: David James Howell, Drazen Jaksik
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Patent number: 7391295Abstract: A high voltage over-current protection device includes a positive temperature coefficient (PTC) electrically conductive heat-dissipation layer and two metal electrodes. The PTC electrically conductive heat-dissipation layer includes at least one polymer, an electrically conductive filler, and a heat conductive filler. Due to the high thermal conductivity of the heat conductive filler (with a coefficient of thermal conductivity higher than 1 W/mK), the high voltage over-current protection device has a high thermal conduction characteristic, and the withstand voltage thereof can be substantially uniformly distributed in the PTC electrically conductive heat-dissipation layer to enhance its high voltage withstanding characteristic.Type: GrantFiled: March 27, 2007Date of Patent: June 24, 2008Assignee: Polytronics Technology CorporationInventors: Shau Chew Wang, Jyh Ming Yu, Kuo Hsun Chen
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Patent number: 7391296Abstract: A variable resistance device comprises a resistive member having a resistive resilient material. A first conductor is configured to be electrically coupled with the resistive member at a first contact location over a first contact area. A second conductor is configured to be electrically coupled with the resistance member at a second contact location over a second contact area. The first contact location and second contact location are spaced from one another by a distance. The resistance between the first conductor at the first contact location and the second conductor at the second contact location is equal to the sum of a straight resistance component and a parallel path resistance component. At least one of the first location, the second location, the first contact area, and the second contact area is changed to produce a change in resistance between the first conductor and the second conductor.Type: GrantFiled: February 1, 2007Date of Patent: June 24, 2008Assignee: Varatouch Technology IncorporatedInventors: Allan E. Schrum, Michael D. Rogers
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Patent number: 7391297Abstract: The invention regards a system and method for using a handheld programming device to configure a lighting control system wirelessly. In one embodiment, at least one device configured with a processing section is installed in the lighting control system. A communications receiver that is operable to receive a signal from the handheld programming device is also installed in the lighting control system, wherein the signal includes an instruction for configuring the lighting control system. Further, the signal is wirelessly sent from the handheld programming device to the communications receiver, and the instruction is transmitted from the communications receiver to a device in the system. The instruction functions to configure the lighting control system.Type: GrantFiled: March 13, 2006Date of Patent: June 24, 2008Assignee: Lutron Electronics Co., Inc.Inventors: Audwin W. Cash, Rishi Raj Kumar, Christopher J. Rigatti, Dragan Veskovic, John Hewson
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Patent number: 7391298Abstract: A system for detecting, monitoring, and reacting to an event comprising: on premises surveillance equipment, an on premises wireless server, a cellular virtual private network in communication with the on premises wireless server, a router remote from the on premises surveillance equipment in communication with the cellular virtual private network and with a second network for directing data to at least one networked server, at least one client device, and computer instructions for enabling the at least one client device to connect to the at least one networked server.Type: GrantFiled: May 9, 2007Date of Patent: June 24, 2008Assignee: GEWA, LLCInventors: Charles Alexander Campbell, George Jeffrey Rino, Floyd Wayne Hayes, James Dale Wix, Joseph John Rino
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Patent number: 7391299Abstract: A user interface, method system and program for circuit protector management in an electrical system.Type: GrantFiled: September 9, 2005Date of Patent: June 24, 2008Assignee: Cooper Technologies CompanyInventors: Robert Lawrence Bender, Timothy Hamilton Speno, Michael Craig Henricks, Robert Stephen Douglass
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Patent number: 7391300Abstract: Applications (11b 11d) and data files (11a 11c 11e) for a communication device (10) enabling the device to use a segment of a media or multimedia file (11a) (an audio file or one or more components of an audio-video file) stored in the communication device (10) to alert a user of the communication device (10) to the occurrence of an event, and to do so in a way that conserves memory. The invention provides an offset selector application (11b) by which a user is able to indicate that a particular segment of the media file (11a) is to be used to signal the occurrence of an event. Instead of storing the segment in the communication device (10), the offset selector application (11b) typically stores only offsets (21a 21b) in respect to the media file (11a), and the offsets are used in combination with the media file (11a) to provide the alert notification.Type: GrantFiled: June 3, 2005Date of Patent: June 24, 2008Assignee: Nokia CorporationInventor: Mikko Inkinen
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Patent number: 7391301Abstract: The present invention teaches an antitheft device whereby the detection accuracy of an unauthorized intruder into a vehicle can be improved, comprising a section for judging whether or not there is an approaching object T toward a vehicle M based on information obtained from a surround monitoring sensor for monitoring the surround of the vehicle M, a section for judging whether or not the approaching object T toward the vehicle M is a suspicious person based on information obtained from a motion sensor for monitoring the periphery and/or the inside of the vehicle M when it is judged that there is an approaching object T toward the vehicle M, and a section for conducting processing such as lighting-on of an indicator when the approaching object T toward the vehicle M is judged to be a suspicious person.Type: GrantFiled: April 7, 2004Date of Patent: June 24, 2008Assignee: Fujitsu Ten LimitedInventors: Yasushi Seike, Naoki Sakai, Yoshihiko Maeno, Satoru Kishimoto
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Patent number: 7391302Abstract: A car-used lock with alerting function comprises a lock installed with a sensor, a buzzer and a transmitter; a receiving control device for receiving signals from the transmitter; the receiving control device being installed with a receiver, a decoder, a microprocessor, an indicator, leaning keys, a dialing control wire and a power source; a car-used handset connected to the receiving control device and having a battery. The receiver serves to transfer the high frequency signals emitted from the transmitter into digital signals. The decoder serves to transfer the digital signals into codes. The microprocessor serves to compare the codes with the built-in data. The lock has the affect of immediate alert and communication with legal frequency bands and power. The power source is from the car used handset. Furthermore, two sets of quick dialing numbers are used so that the line busy of the car owner can be avoided.Type: GrantFiled: March 7, 2006Date of Patent: June 24, 2008Inventor: Hui-Hua Hsieh
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Patent number: 7391303Abstract: An object positioning device and method for positioning an object in a desired position relative to another object. In one aspect, the invention provides a device for aligning hitching components used in coupling a trailer to a towing vehicle. The invention also provides an apparatus for positioning an object upheld by a-base over a supporting surface, comprising a plurality of independently adjustable plumb devices associated with the base. This object positioning apparatus is beneficial in adjusting the verticality of a target supported over the coupling on a trailer used in the trailer hitch alignment device of the present invention.Type: GrantFiled: December 16, 2004Date of Patent: June 24, 2008Inventor: Randell D. Ball
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Patent number: 7391304Abstract: In deviation prevention support ECU 10 in driving operation support system 1, an applied torque by steering torque applier 17 is set based on a vehicle speed of a vehicle. The applied torque is set to increase with increase of the vehicle speed. An upper limit according to the vehicle speed is set for this applied torque. Furthermore, in a Start interval in application of the applied torque, a rate of increasing to reach a maximum is determined according to the maximum of the applied torque. In a Close interval, the applied torque is decreased at a rate different from that in the Start interval, and the absolute rate of increasing the torque in the Start interval is set to be larger than the absolute rate of decreasing the torque in the Close interval.Type: GrantFiled: May 27, 2005Date of Patent: June 24, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroaki Kataoka, Seiji Kawakami, Satoru Niwa, Katsuhiko Iwazaki, Chumsamutr Rattapon
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Patent number: 7391305Abstract: A driver warning device which serves to warn the driver when a safety-critical condition of the vehicle is reached. A warning is issued only if such issuance is to take place in accordance with a user profile. This avoids unnecessary warnings from being issued to a driver, which could reduce the acceptance of the warning system on the part of the driver.Type: GrantFiled: August 19, 2004Date of Patent: June 24, 2008Assignee: Robert Bosch GmbHInventors: Peter Knoll, Andreas Engelsberg, Dietrich Manstetten, Holger Kussmann, Andre Kroehnert, Lars Placke, Marc Stoerzel, Ulrich Schweiger, Stephan Eisenlauer
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Patent number: 7391306Abstract: When the tire reaches a limit of wear level, tire wear indicators generate an acoustic signal by knocking the ground. Magnetic, optical and mechanical versions exist. A detector made of a microphone located under the vehicle and a processing central unit switches on a warning included in the dashboard. In a more sophisticated version, the detector recognizes the incriminated wheel using the phase of the acoustic signal and the information from the ABS™. Application to the detection of the decay of a tire, or any other type of wear surface such as pad, or similar, and to the detection of the presence of snow chains or spikes.Type: GrantFiled: November 19, 2001Date of Patent: June 24, 2008Assignee: Dufournier Technologies SASInventor: Arnaud Dufournier
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Patent number: 7391307Abstract: A tire alarm device gives a warning against the runflat operation limit of a pneumatic tire during runflat operation, the tire having a reinforcement layer disposed in each sidewall thereof for enabling the runflat operation. The device includes a tire temperature sensor used to warn of the runflat operation limit, and the tire temperature sensor is disposed on the inner surface of one of the sidewalls facing the reinforcement layer therein.Type: GrantFiled: April 14, 2004Date of Patent: June 24, 2008Assignee: The Yokohama Rubber Co., Ltd.Inventor: Masatoshi Kuwajima
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Patent number: 7391308Abstract: A transmitter module has a sensor module that includes a plurality of sensors and operates intermittently, a signal processor module that permits transmission of an output of the sensor module to a receiver module at given permission timings, a radio transmission module that wirelessly transmits data when the transmission is permitted, and a power source that supplies power to each module. The signal processor module has a microcomputer and an interval timer that outputs a first timing signal when a count value corresponds to a set value. The microcomputer is activated by the first timing signal and changes the set value in a compare register according to a vehicle operation state.Type: GrantFiled: April 29, 2005Date of Patent: June 24, 2008Assignee: NEC Electronics CorporationInventor: Keiichi Iwazumi
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Patent number: 7391309Abstract: A monitoring system for driver's braking habits comprising a sensor connected to brakes of a vehicle provided to sense and evaluate the following levels of pressure being applied to the brakes by a driver: normal pressure, above normal pressure and an excessive pressure level. The sensor is adapted to activate a warning signal element connected to the sensor and is provided to warn the driver when the pressure level exceeds the above normal pressure level and the excessive pressure level which facilitates correction of bad driving habits of the driver and development of preventive driving techniques. The sensor comprises a first sensor adapted to sense and evaluate the above normal pressure level, and a second sensor adapted to sense and evaluate the excessive pressure level.Type: GrantFiled: August 13, 2004Date of Patent: June 24, 2008Assignee: Securite GMR SafetyInventors: Albert Chartier, Gaetan Jette
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Patent number: 7391310Abstract: A seatbelt alarm device for a vehicle includes a seat sensor, a seatbelt sensor, a judgment circuit, an alarm unit, and a child seat sensor. The seat sensor detects a mass on a seat of the vehicle. The seatbelt sensor detects whether a seatbelt of the seat is engaged with a seatbelt buckle. The judgment circuit generates a demand for a seatbelt-wear alarm upon determining that a mass sits on the seat and the seatbelt is not engaged according to detection signals of the seat sensor and the seatbelt sensor, respectively. The alarm unit generates the seatbelt-wear alarm. The child seat sensor detects a child seat mounted on the seat. The judgment circuit restricts operation of the alarm unit when the judgment circuit determines that the child seat is mounted to the seat according to a detection signal of the child seat sensor.Type: GrantFiled: March 8, 2005Date of Patent: June 24, 2008Assignee: DENSO CORPORATIONInventors: Hiroyuki Ito, Masahiro Taguchi, Koji Wato