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271results about How to "Improve response characteristics" patented technology
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Content output device
InactiveUS20060190577A1Improve responsivenessImprove response characteristicsDigital computer detailsTransmissionInternet radio deviceRadio equipment
An Internet radio device (10), when an N-th radio station server (200) is selected, receives streaming contents from five N−2-th to N+2-th radio station servers (200, 200, . . . ), writes them respectively into five buffers, and reads only the streaming content from the N-th radio station server (200) via the buffer and reproduces it. After that, when a station change operation is performed for a change to a neighboring station, that is, the N−1-th or N+1-th radio station server (200), the Internet radio device (10) reads only the streaming content from the N−1-th or N+1-th radio station server (200) via the buffer and reproduces it.
Owner:KYOCERA CORP
Display device and driving circuit thereof
InactiveUS20090015532A1Increase speedLow costCathode-ray tube indicatorsIlluminated signsLiquid-crystal displayDisplay device
In a display device such as a liquid crystal display, a processing for compressing a range of display data (grayscale) to a low grayscale side (a grayscale range where response is fast) except for a high grayscale side (a grayscale range where response is slow) at a predetermined compression ratio to conduct display according to response characteristic of transition between grayscales and a temperature state and a processing for increasing a light amount of a backlight to compensate for luminance change due to the compression are performed, for example, in a liquid crystal panel of TN liquid crystal. Thereby, response can be made fast even at a low temperature time.
Owner:RENESAS ELECTRONICS CORP
Switching power supply device and switching power supply system
InactiveUS6979985B2Reduce power consumptionReduction in circuit sizeEfficient power electronics conversionDc-dc conversionComparators circuitsVoltage reference
There is provided a switching power supply device of hysteresis current mode control system which assures excellent response characteristic for change of output current and reduction of power consumption. In a switching regulator of hysteresis current mode control system, a sense resistor connected in series to a coil is eliminated, a serially connected resistor and a capacitor are connected in parallel to a coil in place of such sense resistor. Thereby, a potential of a connection node of these resistor and capacitor is inputted to a comparator circuit having the hysteresis characteristic for comparison with the reference voltage. Accordingly, a switch may be controlled for ON and OFF states.
Owner:RENESAS ELECTRONICS CORP
Integrated Electronic Sensor
ActiveUS20090141767A1Improve response characteristicsSufficient free space volumeThermometer detailsAnalysing fluids using sonic/ultrasonic/infrasonic wavesMicrocontrollerLine sensor
A single chip wireless sensor (1) comprises a microcontroller (2) connected to a transmit / receive interface (3), which is coupled to a wireless antenna (4) by an L-C matching circuit. The sensor (1) senses gas or humidity and temperature. The device (1) is an integrated chip manufactured in a single process in which both the electronics and sensor components are manufactured using standard CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process. A Low-K material (57) with an organic polymer component is spun onto the wafer to form a top layer incorporating also sensing electrodes (60). This material is cured at 300° C., which is much lower than CVD temperatures. The polyimide when cured becomes thermoset, and the lower mass-to-volume ratio resulting in K, its dielectric constant, reducing to 2.9. The thermoset dielectric, while not regarded as porous in the conventional sense, has sufficient free space volume to admit enough gas or humidity for sensing.
Owner:SILICON LAB INC
Linear guide apparatus
Owner:NSK LTD
Two-dimensional position sensor
InactiveUS20100200309A1Improve response characteristicsSmall sizeTransmission systemsElectronic switchingMicrocontrollerCoupling
A sensor for determining a position of an object in two dimensions is provided. The sensor comprises a substrate with a sensitive area defined by a pattern of electrodes arranged thereon. The pattern of electrodes comprises four drive electrodes arranged in a two-by-two array and coupled to respective drive channels, and a sense electrode coupled to a sense channel. The sense electrode is arranged so as to extend around the four drive electrodes (i.e. to wholly or partially surround the drive electrodes, for example, so as to extend adjacent to at least three sides of the drive electrodes). The sensor may further comprise a drive unit for applying drive signals to the respective drive electrodes, and a sense unit for measuring sense signals representing a degree of coupling of the drive signals applied to the respective drive electrodes to the sense electrode. Furthermore the sensor may comprise a processing unit for processing the sense signals to determine a position of an object adjacent the sensor. The functionality of the drive channels, the sense channels, and the processing unit may be provided by a suitably programmed microcontroller.
Owner:ATMEL CORP
Conductive sheet, touch panel, display device, method for producing conductive sheet, and recording medium
ActiveUS20140218642A1Reduce graininessIncrease awarenessImage enhancementImage analysisFrequency bandTouch panel
The conductive sheet according to the present invention includes a base and a conductive portion that is formed on at least one main surface of the base and is formed from a plurality of thin metal wires, where a mesh pattern in which different mesh shapes are arrayed in plan view is formed by the conductive portion, and the mesh pattern is configured such that, in a power spectrum of a two-dimensional distribution of centroid positions of the mesh shapes, an average intensity on a higher spatial frequency band side than a predetermined spatial frequency is larger than an average intensity on a lower spatial frequency band side than the predetermined spatial frequency. The conductive sheet can reduce the granular feeling of noise due to pattern which the conductive sheet has and greatly improve the visibility of an object for observation.
Owner:FUJIFILM CORP
Integrated CMOS porous sensor
InactiveUS20120304742A1Improve response characteristicsSufficient free space volumeSemiconductor/solid-state device detailsSolid-state devicesLine sensorDielectric
A single chip wireless sensor comprises a microcontroller and transmit / receive interface, which is coupled to a antenna by an L-C matching circuit. The sensor senses gas or humidity and temperature. The device is an integrated chip manufactured in a process in which the electronics and sensor components are manufactured using CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process. A Low-K material with an polymer component is spun onto the wafer to form a top layer incorporating sensing electrodes. This material is cured at 300° C., lower than CVD temperatures. The polyimide when cured becomes thermoset, and the lower mass-to-volume ratio resulting in its dielectric constant, reducing to 2.9. The thermoset dielectric, not regarded as porous in the conventional sense, has sufficient free space volume to admit enough gas or humidity for sensing.
Owner:CHIPSENSORS
Frequency converter volume variable speed closed hydraulic control systems
InactiveCN1439814AImprove transmission efficiencySave energyServomotorsHydraulic control unitHydraulic motor
A closed hydraulic control system with frequency-varying volumetric speed regulation for high-power and high-speed fields is composed of primary hydraulic loop and oil-supplementing loop for said primary hydraulic loop. A frequency-varying technique is used to control the rotation speed of three-phase AC asynchronous motor and in-turn the output flow of hydraulic pump or hydraulic motor. Its advantages are small volume of oil in hydraulic loop, and high energy-saving effect.
Owner:ZHEJIANG UNIV
Miniature integrated temperature control type CO2 gas sensor and manufacturing method thereof
InactiveCN102095766AReduce volumeReduce power consumptionDecorative surface effectsChemical vapor deposition coatingProcess engineeringMechanical system
The invention discloses a miniature integrated temperature control type CO2 gas sensor and a manufacturing method thereof. The sensor comprises a miniature integrated temperature control type device and a high-temperature work film type solid electrolyte air-sensitive element and is characterized in that: the miniature integrated temperature control type device consists of a silicon substrate, a SiO2 layer, a Si3N4 layer, a Pt heater and a temperature measuring element which are processed by a micro electro mechanical system (MEMS) process; and on a miniature integrated temperature control structure, a film type solid electrolyte CO2 air-sensitive element is formed by a micromachining process deposition SiO2 layer, an Li3PO4 solid electrolyte film, a Pt metal electrode, a reaction electrode Li2CO3 and a reference electrode Li2TiO3 / TiO2. A closed loop control system is formed by the feedback of the Pt heater and the temperature measuring element to make the temperature of the sensor reach the specified temperature required by working, keep the temperature constant and ensure the optimal performance of the CO2 gas sensor.
Owner:XI AN JIAOTONG UNIV
Liquid crystal display and method of manufacturing liquid crystal display
ActiveUS20110317104A1High light transmittanceFavorable voltage response characteristicSemiconductor/solid-state device manufacturingNon-linear opticsConvex structureLiquid-crystal display
A liquid crystal display capable of realizing a high transmittance while maintaining favorable voltage response characteristics, and a method of manufacturing the same are provided. The liquid crystal display includes: a liquid crystal layer; a first substrate and a second substrate arranged to face each other with the liquid crystal layer in between; a plurality of pixel electrodes provided on a liquid crystal layer side of the first substrate; and an opposite electrode provided on the second substrate to face the plurality of pixel electrodes. One or both of a face on the liquid crystal layer side of the pixel electrode, and a face on the liquid crystal layer side of the opposite electrode includes a concavo-convex structure.
Owner:SONY CORP
Power transistor device and a power control system for using it
InactiveUS20050286194A1Reduce loss in the transistorLower on-state resistanceTransistorSolid-state devicesElectrical conductorPower control system
The object of the invention is to protect a power MOS transistor using a transistor having trench structure from overcurrent and to enhance the reliability. To achieve the object, a power MOS transistor, a transistor for detecting current for detecting the current of the power MOS transistor and generating a detection signal supplied to an external control circuit and devices configuring a protection circuit for detecting the current of the power MOS transistor and inhibiting current by forcedly dropping the gate voltage of the power MOS transistor when current equal to or exceeding a predetermined value flows are provided in the same semiconductor chip.
Owner:FUJIKI ATSUSHI +1
Valve device and method for injecting a gaseous fuel
InactiveUS7225790B2Great valve lift in valveSimple designValve arrangementsInternal combustion piston enginesElectricityCombustion chamber
Owner:WESTPORT POWER
Linear guide apparatus
InactiveUS20010016087A1High positioning accuracyRelieve stressLinear bearingsShaftsBody rollMechanical engineering
The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member 16, an oil pressure cylinder 17 and a plate spring 32. The brake member 16 is disposed so as to face the side surface 3a of the guide rail 3 and can be contacted with the other portions of the side surface 3a than the rolling body rolling groove 8 thereof. The oil pressure cylinder 17 includes a piston member 20 which is structured to be driven in a positive direction to thereby press the brake member 16 against the side surface 3a of the guide rail 3 and also the piston member 20 can be driven in the opposite direction to thereby remove the pressure of the brake member 16 from the side surface 3a.
Owner:NSK LTD
Wolfberry picking robot and control method thereof
InactiveCN105123127ARealize self-pickingRealize normal pickingPicking devicesControl mannerData acquisition
The invention discloses a wolfberry picking robot. A wolfberry picking robot system adopts a pinhole imaging technology and mainly comprises a data acquisition card and an analog-digital conversion module. A control method mainly adopts a fuzzy PID self-adaptive control way and is mainly used for controlling the vision. Hardware of the wolfberry picking robot mainly consists of a mechanical arm, a rotor structure, a picking head and various motors. By adopting the wolfberry picking robot, the automatic picking of wolfberry can be implemented, the manpower can be completely substituted, and the problem that the manual picking is subjected to the influence of the environment can be solved. The wolfberry picking robot is high in automation degree and high in picking efficiency.
Owner:BEIFANG UNIV OF NATITIES
Vehicle control apparatus
InactiveUS20040259682A1Improve response characteristicsContinuous controlElectrical controlOutput powerMobile vehicleEngineering
Owner:TOYOTA JIDOSHA KK
Liquid crystal display device and its drive method
InactiveUS6952192B2Short response timeImprove response characteristicsStatic indicating devicesNon-linear opticsLiquid-crystal displayTransmittance
A MVA type liquid crystal panel is slow in a response speed when a black state at a drive voltage about 1V is switched to a low brightness halftone state at the drive voltage about 2 to 3V. According to the present invention, in a liquid crystal display device for driving the MVA type liquid crystal panel, when a liquid crystal pixel at a pixel electrode is changed from a first transmittance to a second transmittance greater than the first transmittance, a drive voltage greater than a first target drive voltage in correspondence with a second transmittance is applied to the pixel electrode in a first frame period of changing to the second transmittance, and the first target display voltage is applied from a second frame period. According to the present invention, even when either switching is performed from a black state to a low brightness halftone state, from the black state to a high brightness halftone state, or from the black state to a white state, a response time is shortened, and the switching can be performed without generating an overshoot.
Owner:SHARP KK
Electric voltage regulator
InactiveCN1487384AImprove response characteristicsStable jobAmplifier with semiconductor-devices/discharge-tubesElectric variable regulationCapacitanceEngineering
Provided is a voltage regulator which has a high speed response property in a low consumption current and is stably operable in a low output capacitance. The voltage regulator has: a differential amplifier for comparing an output of a reference voltage circuit with an output of a voltage dividing circuit and outputting a first signal; a phase compensating circuit in which a resistor and a capacitor are connected in series; a MOS transistor in which an output of the differential amplifier is inputted to a gate electrode, which is connected between a power supply and the phase compensating circuit, and in which a source is grounded; a constant current circuit connected between the MOS transistor and a ground; and an output transistor in which a second signal output from a connection point between the MOS transistor and the phase compensating circuit is inputted to a gate electrode and which is connected between the power supply and the voltage dividing circuit. A resistor side of the phase compensating circuit is connected with an output terminal of the differential amplifier and a capacitor side of the phase compensating circuit is connected with a drain electrode of the MOS transistor.
Owner:SEIKO INSTR INC
Integrated electronic sensor
ActiveUS8007167B2Improve response characteristicsSufficient free space volumeThermometer detailsAnalysing fluids using sonic/ultrasonic/infrasonic wavesMicrocontrollerDielectric
A single chip wireless sensor (1) comprises a microcontroller (2) connected to a transmit / receive interface (3), which is coupled to a wireless antenna (4) by an L-C matching circuit. The sensor (1) senses gas or humidity and temperature. The device (1) is an integrated chip manufactured in a single process in which both the electronics and sensor components are manufactured using standard CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process. A Low-K material (57) with an organic polymer component is spun onto the wafer to form a top layer incorporating also sensing electrodes (60). This material is cured at 300° C., which is much lower than CVD temperatures. The polyimide when cured becomes thermoset, and the lower mass-to-volume ratio resulting in K, its dielectric constant, reducing to 2.9. The thermoset dielectric, while not regarded as porous in the conventional sense, has sufficient free space volume to admit enough gas or humidity for sensing.
Owner:SILICON LAB INC
Exhaust control valve
InactiveUS6609367B2Leakage of exhaust gas from the vicinity of a valve shaft can be preventedLow costPlug valvesOperating means/releasing devices for valvesEngineeringControl valves
In an exhaust control valve having a valve housing and a valve body rotatably contained in the valve housing, a transmission member is fitted to an outer end of the valve shaft and protrudes from the outside of the valve housing. A bearing bushing for rotatably bearing an external circumferential surface of the valve shaft by its internal circumferential surface and rotatably bearing an end face of the valve body by its end face is mounted in the valve housing. The valve body is urged by load from a thrust spring for achieving a pressure contact seal condition between the opposed end faces of the bearing bush and the valve body.
Owner:HONDA MOTOR CO LTD
Underwater sub-wavelength resolution ratio three-dimensional imaging method
InactiveCN102928844ASimple structureAchieving identifiabilityAcoustic wave reradiationSound imageImage segmentation
The invention discloses an underwater sub-wavelength resolution ratio three-dimensional imaging method. The underwater sub-wavelength resolution ratio three-dimensional imaging method includes the following steps: (1) a sound signal is emitted; (2) acoustic lens wave beams are formed; (3) the sound signal is received and adjusted; (4) an image is processed and displayed. A two dimensional datum is obtained according to an imaging rule of an acoustic lens, a distance datum is obtained by utilizing an emission time and a receiving time, and a three dimensional underwater sound datum is obtained by combining with an electric signal received by a underwater sound sensor. The three dimensional underwater sound image datum undergoes image enhancement and image segmentation and a three dimensional image of a target is achieved by use of an open-sourcing visualization program library visualization toolkit (VTK). A reflected sound wave is focused through the acoustic lens and forms the wave beam. Hardware circuits of a normal imaging system are greatly reduced. A sub-wavelength image is achieved due to the characteristic of negative refraction of a phonon crystal. The novel underwater sound sensor with a mesoscopic pressure resistance is utilized, the underwater sound sensor responds to an underwater sound signal well, and a faint underwater signal can be effectively transformed.
Owner:ZHONGBEI UNIV
Vehicle control apparatus
InactiveUS7115065B2Improve drivabilityImprove response characteristicsElectrical controlOutput powerMobile vehicleControl theory
Owner:TOYOTA JIDOSHA KK
Reciprocating drive mechanism and press using the same
ActiveUS20050204798A1Sufficiently-high maximum pressing torqueSimple configurationGearingHammer drivesLinear motionBall screw
A reciprocating drive mechanism for converting motor rotation into linear motions to produce a reciprocating drive force, and a press machine using the mechanism. The rotation of a first motor (20A) out of two motors (20A) and (20B) is converted into a high-speed low-torque rotational output and transmitted to a ball screw mechanism (50) by a first power transmission mechanism (30). The rotation of the second motor (20B) is converted into a low-speed high-torque rotational output and transmitted to the ball screw mechanism (50) by a second power transmission mechanism (40). The ball screw mechanism (50) is made of a feed screw (52) supported in a screw hole of a nut member (51) so as to be capable of screw-fed rotation. The feed screw (52) and the nut member (51) are coupled with the first power transmission mechanism (30) and the second power transmission mechanism (40), respectively. A corotation prevention mechanism (80) prevents the feed screw (52) from rotating together with the rotation of the nut member (51).
Owner:AMADA CO LTD
Shape memory alloy and method of treating the same
InactiveUS6946040B2Improve response characteristicsPoor heat conductionMemory effectCrystal orientation
A method of treating a shape memory alloy to improve its various characteristics and to cause it to exhibit a two-way shape memory effect. A raw shape memory alloy having a substantially uniformly fine-grained crystal structure is prepared and then its crystal orientations are arranged substantially in a direction suitable for an expected operational direction, such as tensile or twisting direction or the like, in which the shape memory alloy is expected to move when used in an actuator after the completion of the treatment.
Owner:TOKI
Path tracking control method of intelligent vehicle
ActiveCN107831761AImplement trackingQuick responsePosition/course control in two dimensionsVehiclesState observerNonlinear control
A path tracking control method of an intelligent vehicle comprises the following steps that 1) a two-freedom-degree planar movement model of the vehicle is established and simplified according to control demands to obtain a nonlinear vehicle path tracking control model; 2) an expected yaw angle function psid is constructed so that the yaw angle function psid satisfies that the lateral displacementdeviation Ye of the vehicle is converged to 0 when the yaw angle of the vehicle approaches an expected yaw angle; 3) a yaw angle tracking control problem is converted into a yaw angle calming problem; 4) a nonlinear control including an expected yaw angle module, an expanded state observer and a nonlinear error feedback control law of a non-singular terminal sliding-mode is designed; and 5) pathtracking control is carried out on the vehicle on the basis of the nonlinear controller.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
2,3,2,'3' tetrafluoro diphenyl acetylene derivative, its composition, preparation method and use
InactiveCN1911888AHigh viscosityLow viscosityLiquid crystal compositionsHalogenated hydrocarbon preparationBenzeneDielectric anisotropy
The present invention relates to one kind of 2, 3, 2', 3'-tetrafluoro acetylene derivative and its composition, preparation process and use. The compound has the general expression as shown, relatively great optical anisotropy, relatively great negative dielectric anisotropy, relatively high light and heat stability and relatively low viscosity. The compound may constitute well behaved nematic phase liquid crystal composition with low threshold voltage, low viscosity, high response speed, improved response characteristic and contrast, and the nematic phase liquid crystal composition may be used in liquid crystal display of TN mode, STN mode, TFT mode, PDLC mode, etc. In addition, the compound has facile material and simple synthesis path, and the process is suitable for industrial production.
Owner:SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Liquid crystal display device
InactiveUS20050046772A1Good response characteristicsAlignment control is efficientlyStatic indicating devicesNon-linear opticsEngineeringVoltage
In a liquid crystal display device of the present invention, when a display voltage is applied to picture element electrodes, each picture element electrode forms a plurality of domains in which liquid crystal molecules align themselves in different directions. The picture element electrodes are formed such that their edge portions on the opposite sides of a picture-element-electrode aperture portion formed between the picture element electrodes face parallel to each other with a certain interval. A source bus line is provided along the picture-element-electrode aperture portion formed between the picture element electrodes. The source bus line is disposed beneath the picture element electrodes and at the edge portions of the picture element electrodes by overlapping therewith in a direction of thickness.
Owner:SHARP KK
Positive displacement expander
InactiveUS20090178433A1More variationReduced effectively in vibrationDomestic cooling apparatusCombination enginesSnubbingEngineering
A casing (31) houses therein an expansion mechanism (60) and a compression mechanism (50). The expansion mechanism (60) has a rear head (62) in which a pressure snubbing chamber (71) is provided. The pressure snubbing chamber (71) is divided by a piston (77) into an inflow / outflow chamber (72) which fluidly communicates with an inflow port (34) and a back pressure chamber (73) which fluidly communicates with the inside of the casing (31). The piston (77) is displaced in response to suction pressure variation whereby the volume of the inflow / outflow chamber (72) varies. This enables the inflow / outflow chamber (72) to directly perform supply of refrigerant to or suction of refrigerant from the inflow port (34) which is a source of pressure variation, thereby making it possible to effectively inhibit suction pressure variation.
Owner:DAIKIN IND LTD
Integrated CMOS porous sensor
ActiveUS8357958B2Improve response characteristicsSufficient free space volumeTransistorSemiconductor/solid-state device detailsMicrocontrollerDielectric
A single chip wireless sensor comprises a microcontroller connected to a transmit / receive interface, which is coupled to a wireless antenna by an L-C matching circuit. The sensor senses gas or humidity and temperature. The device is an integrated chip manufactured in a single process in which both the electronics and sensor components are manufactured using standard CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process. A Low-K material with an organic polymer component is spun onto the wafer to form a top layer incorporating also sensing electrodes. This material is cured at 300° C., which is much lower than CVD temperatures. The polyimide when cured becomes thermoset, and the lower mass-to-volume ratio resulting in K, its dielectric constant, reducing to 2.9. The thermoset dielectric, while not regarded as porous in the conventional sense, has sufficient free space volume to admit enough gas or humidity for sensing.
Owner:SILICON LAB INC
Switching power supply apparatus
ActiveUS20120314454A1Improve efficiencyReduce in quantityEfficient power electronics conversionDc-dc conversionSquare waveformNormal load
In a switching power supply apparatus, a first switching element is controlled by a driving voltage output from a switching control IC. A second switching control circuit controls the on-time of a second switching element so that the time ratio of the on-time of the second switching element to the on-time of the first switching element becomes almost constant with respect to a change in a load current. In a normal load state, since a square wave output from a frequency setting unit within the switching control IC is output with no change, a converter operates in a current-continuous mode. In a light load state, a driving signal generation unit within the switching control IC is subjected to blanking with the period of a signal output from a maximum frequency setting unit and an oscillation frequency is reduced. Accordingly, the converter operates in a current-discontinuous mode.
Owner:MURATA MFG CO LTD
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