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61results about How to "Detection precision can be improved" patented technology
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Two-dimensional code extracting method
InactiveUS20020051573A1Easy to distinguishDetection precision can be improvedImage enhancementImage analysisPattern recognitionCoding region
An image data is inputted by using a device such as a document scanner. The input image data is scanned in a square block unit of MxN pixels, and blocks that satisfy specific conditions is detected based on the scanning process. In one example, a ratio of white pixels and black pixels falls within scanned blocks is used as the specific condition to detect those blocks. Then a region that neighbored by the other blocks is detected, and is extracted as a two-dimensional code region.
Owner:FUJITSU LTD
Method and device for imaging liquid-filled container
InactiveUS6993176B2Detection precision can be improvedIncrease volumeCounting objects on conveyorsCharacter and pattern recognitionForeign matterDark color
The present invention is a method and an apparatus for imaging a liquid-filling container in which a light emitting unit is provided for emitting and irradiating light onto the container and a light receiving unit is provided for receiving the light transmitted through the container. The object of the present invention is to provide such a method and an apparatus for imaging a liquid-filling container. This method and apparatus assures reliable detection of the surface of liquid filled in a container or of foreign substance mixed in the liquid or present in the container or the container material not only when the container is transparent, but also when the container is a colored container of a dark color such as black, dark green or dark brown or the container has a frosted surface of when the liquid filled in the container has a dark color. For accomplishing this object, according to the present invention, the light emitting unit emits near infrared light or the light receiving unit receives near infrared light for imaging the container.
Owner:SUNTORY HLDG LTD
RFID System, Power Supply Device and Power Supply Method
InactiveUS20090040027A1Detection precision can be improvedExclude influenceAntenna supports/mountingsSubscribers indirect connectionEmbedded system
Owner:NEC CORP
Piezoresistive transducers
InactiveUS6915702B2Detection precision can be improvedReduce volatilityUsing electrical meansForce measurement using piezo-resistive materialsTransducerEngineering
Owner:KK TOYOTA CHUO KENKYUSHO
Diagnostic apparatus for an exhaust gas sensor
ActiveUS6961653B2Easily decrease ratioDetection precision can be improvedAnalogue computers for vehiclesElectrical controlFrequency responseFuel injection
Owner:HONDA MOTOR CO LTD
Rolling bearing unit
InactiveUS6971799B2Prolong lifeReduce signalingElectric signal transmission systemsRoller bearingsRolling-element bearingDistortion
A four-row tapered roller bearing is incorporated in the clearance between the inner surface of a housing and the outer surface of a rolling roller. A pair of supporting members supporting sensor devices are fitted in and supported by a part of the inner surface of the housing in such a manner that they are opposed to the ends of outer rings of the four-row tapered roller bearing disposed close to the both axial ends thereof. The sensor devices each comprise a distortion gauge as a detecting portion and a first coil for transmitting as a wireless signal a signal obtained by processing an output signal outputted from the distortion gauge. A second coil for receiving the wireless signal transmitted by the first coil is retained on a part of a member other than the supporting members.
Owner:NSK LTD
Vehicle bumper structure including a pressure tube-type pedestrian collision detection sensor
ActiveUS20160039376A1Increase in sizeStably and extensively deformedPedestrian/occupant safety arrangementRailway wheel guards/bumpersCollision detectionPedestrian
In a vehicle bumper structure including a pressure tube-type pedestrian collision detection sensor according to technology disclosed herein, the vehicle bumper structure includes a bumper reinforcement, a pressure tube-type pedestrian collision detection sensor, and an upper absorber. The upper absorber includes an absorber main body, an absorber upper end portion that is integrally provided to the vehicle upper side of the absorber main body, and includes a projecting portion projecting toward the vehicle front-rear direction inner side with respect to the absorber main body at the vehicle upper side of the bumper reinforcement, and a groove portion that is formed at a vehicle front-rear direction inner side portion of the absorber main body, that is disposed adjacent to the vehicle lower side of the absorber upper end portion, that is open toward the vehicle front-rear direction inner side or the vehicle lower side, and that retains a pressure tube.
Owner:TOYOTA JIDOSHA KK
Light source device and liquid crystal display unit
InactiveUS20100097412A1High light emission luminanceImprove precisionElectroluminescent light sourcesSolid-state devicesVIT signalsLiquid-crystal display
A light source device, performing partial lighting operation and having a function of detection of illuminated light with improved precision is provided. The light source device including: a light source section having a plurality of partial lighting sections each controlled separately; a drive means for time-divisionally driving the light source section with a pulse signal so that a whole lighting time period and a partial lighting time period are mixed along time base; a photoreception device receiving light from the light source section; and a sampling means for sampling, at a timing in the partial lighting time period, a photoreception signal from the photoreception device. The drive means controls a width of the pulse signal immediately before a transition from the whole lighting time period to the partial lighting time period so that the width is equal to or less than a given threshold value.
Owner:SONY CORP
Wireless power transmitter
ActiveUS20170366048A1Detection precision can be improvedAccurate detectionNear-field transmissionCircuit arrangementsResonant capacitorEngineering
A transmission antenna includes a resonance capacitor and a transmission coil coupled in series. A driver includes a bridge circuit that applies a driving voltage to the transmission antenna. A current sensor detects a current IS that flows through the bridge circuit. A foreign object detector detects the current IS that flows through the bridge circuit while changing the switching frequency applied to the bridge circuit. The foreign object detector judges the presence or absence of a foreign object based on the detection result.
Owner:ROHM CO LTD
Internal combustion engine with oil temperature sensor
InactiveUS20050092283A1Reduce the heating effectAccurate temperatureExhaust apparatusCylinder headsDegrees of freedomCylinder block
The invention relates to an engine arrangement that increases the degree of freedom of the engine state sensor while decreasing the size of the engine body. More specifically, the engine is formed with a chamber for housing a valve train and serving dually as a return oil path of the lubricating oil after having lubricated the valve train. The engine includes an oil temperature sensor partially exposed on one side of a cylinder block and an exhaust pipe partially exposed on the opposite side of the cylinder block.
Owner:HONDA MOTOR CO LTD
Infrared sensor and infrared sensor module
InactiveUS20110155914A1Accurate detectionReduce pressureSolid-state devicesMaterial analysis by optical meansEngineeringArithmetic circuits
The present invention provides an infrared sensor and an infrared sensor module having reduced noise, improved detection precision, and reduced manufacture cost. The infrared sensor includes a first substrate transmitting infrared light including at least one reduced-pressure and sealed cavity, at least one infrared sensing unit provided on the side of the first substrate, and at least one infrared sensing unit generating an output change. The infrared sensor includes a second substrate stacked on the first substrate with a recess, a reflection face capable of reflecting the infrared light, and at least one arithmetic circuit for amplifying or integrating an output, arranged in such a manner that the reflection face is sandwiched between the at least one sensing unit and the least one arithmetic circuit.
Owner:ORMON CORP
Proximity sensor
ActiveUS20090051356A1Detection precision can be improvedImprove precisionMagnetic property measurementsUsing electrical meansProximity sensorEngineering
In a proximity sensor 20 for detecting the proximity of a member to be detected 8 having a magnet or a magnetic material using a magnetic detection element 26, there are provided elastic members 33 for elastically energizing the magnetic detection element 26 toward the detection surface 26a thereof.
Owner:HONDA MOTOR CO LTD
Load-sensor-equipped vehicle operating pedal device and load-sensor-equipped operating device
ActiveUS20080250894A1Minimizes flexure deformationReduce deformationControlling membersMechanical apparatusEngineeringStructural engineering
A load-sensor-equipped vehicle operating pedal device includes a load sensor (30) having a case member (34) formed with a pair of mounting wall portions (62a, 62b) converged in a convex shape at a predetermined apex angle α. The pair of mounting wall portions (62a, 62b) are held in surface contact with a pair of rest surfaces (28a, 28b), formed in a sensor-mounting hole (28) in a fixed and positioned state. Thus, even if a direction of an input load (reactive force), applied to a clevis pin (26) varies with an operating pedal 16 being progressively depressed, the pair of rest surfaces (28a, 28b) always bear the input load via the pair of mounting wall portions (62a, 62b). This suppresses the case member (34) from flexure deforming due to stress concentration. As a result, positional displacement of a sensor is prevented regardless of a variation in the direction of the input load, improving detecting precision.
Owner:TOYODA IRON WORKS CO LTD
Diagnostic apparatus for an exhaust gas sensor
ActiveUS20050005690A1Suppress decrease of catalyst purification rateMaintain detection accuracyAnalogue computers for vehiclesElectrical controlFrequency responseFuel injection
A deterioration failure diagnostic apparatus for an exhaust gas sensor has a higher detection precision and a wider detection range against the deterioration failure of the exhaust gas sensor. An exhaust gas sensor is disposed in an exhaust gas pipe of an internal-combustion engine for producing an output corresponding to components of exhaust gas of the engine. The apparatus has a device for producing a detecting signal, which is multiplied to a basic fuel injection amount used at a normal operation to produce a fuel injection amount to be used for determining a condition of the exhaust gas sensor. The apparatus includes a device for extracting a frequency response corresponding to the detecting signal from an output of the exhaust gas sensor. The output is in response to the calculated fuel injection amount. The condition of the exhaust gas sensor is determined based on the extracted frequency response.
Owner:HONDA MOTOR CO LTD
Fingerprint identification detection circuit, touch screen and display device
ActiveUS20180300527A1Detection precision can be improvedTransistorPrint image acquisitionDisplay deviceOpto electronic
A fingerprint identification detection circuit, a touch screen and a display device is disclosed. The fingerprint identification detection circuit can include a photosensitive diode, a first switch transistor, a second switch transistor and a voltage follower transistor, wherein the first switch transistor can include a metal oxide transistor, and the second switch transistor and the voltage follower transistor both can include a low-temperature polycrystalline silicon transistor. There is little current leaking from the first switch transistor by using the metal oxide transistor as the first switch transistor. Even in the case of low light intensity, photocurrent can be detected, which may thereby improve the detection precision of the fingerprint identification detection circuit.
Owner:BOE TECH GRP CO LTD
Battery state of charge detection
InactiveUS20050280396A1Detection precision can be improvedHybrid vehiclesAuxillary drivesBattery state of chargeElectrical battery
A state of charge of a battery (1) that drives a motor (6) is computed based on a discharge current measured by a current sensor (3) when the discharge current of the battery (1) does not exceed a rated discharge range of the battery (1). When the discharge current of the battery (1) exceeds the rated discharge range, the state of charge of the battery (1) is computed by estimating the discharge current of the battery (1) from a motor control signal, whereby current changes over a wide range can be found with good precision using the sensor (3), which has a narrow but high resolution measurable range, and the state of charge can be accurately detected.
Owner:NISSAN MOTOR CO LTD
Gas sensor control device
ActiveUS20090120161A1High precisionDetection precision can be improvedAnalysing fluids using sonic/ultrasonic/infrasonic wavesMaterial analysis by electric/magnetic meansElectrical batteryEngineering
A gas sensor control device for controlling a gas sensor, the gas sensor including a gas sensor element that includes a cell including a pair of electrodes and a solid electrolyte, the gas sensor control device including a circuit board connectable to the gas sensor. The circuit board has mounted thereon a voltage control unit mounted on the circuit board and configured to control a voltage developed across a pair of electrodes of the cell to a constant voltage; a temperature detecting unit mounted on the circuit board and configured to detect a temperature of the circuit board; and a voltage correcting unit mounted on the circuit board and configured to apply a correction voltage to the voltage control unit compensating for a temperature-dependent variation in the constant voltage based on the temperature detected by the temperature detecting unit.
Owner:NGK SPARK PLUG CO LTD
Electronic nose device
InactiveUS20140023557A1Detection precision can be improvedSimple structureComponent separationImmunoassaysAir pumpEngineering
An electronic nose device is disclosed in an embodiment of the invention. The electronic nose device includes a fan module, a gas molecule sensor module, a control unit and an output unit. The fan module is used to pump air actively to the gas molecule sensor module. The gas molecule sensor module detects the air pumped into by the fan module. The gas molecule sensor module at least includes a gas molecule sensor which is covered with a compound. The compound is used to combine preset gas molecules. The control unit controls the fan module to suck air into the electronic nose device. Then the fan module transmits an air current to the gas molecule sensor module to generate a detected data. The output unit calculates the detected data to generate a calculation result and outputs an indicating signal to an operator or compatible host computer according to the calculation result.
Owner:EPS BIO TECH CORP
Crossing point detector, camera calibration system, crossing point detection method, camera calibration method, and recording medium
ActiveUS20180144502A1Easy to detectAccurate detectionImage enhancementTelevision system detailsCamera auto-calibrationPoint detector
A crossing point detector includes memory and a crossing point detection unit that reads out a square image from a captured image in the memory, and detects a crossing point of two boundary lines in a checker pattern depicted in the square image. The crossing point detection unit decides multiple parameters of a function model treating two-dimensional image coordinates as variables, the parameters optimizing an evaluation value based on a difference between corresponding pixel values represented by the function model and the square image, respectively, and computes the position of a crossing point of two straight lines expressed by the decided multiple parameters to thereby detect the crossing point with subpixel precision. The function model uses a curved surface that is at least first-order differentiable to express pixel values at respective positions in a two-dimensional coordinate system at the boundary between black and white regions.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Air Conditioner
InactiveUS20080053120A1Small power consumptionSmall consumption powerAuxillary controllers with auxillary heating devicesEfficient regulation technologiesStop timeRefrigerant
An air conditioner includes an outdoor unit, an indoor unit and a plurality of communication pipes. The outdoor unit including has a gas close valve, a compressor driven by a compressor motor controlled by an inverter, an outdoor heat exchanger, an electrically powered expansion valve, and a liquid close valve. The an indoor unit has an indoor heat exchanger. The communication pipes interconnect the outdoor unit and the indoor unit. The air conditioner determines, on the basis of compressor power supplied to the compressor motor from the inverter, whether or not a pump down operation is being performed in a state of a refrigeration cycle operation that causes the indoor heat exchanger to function as an evaporator of refrigerant. When the pump down operation is being performed, the air conditioner stops the compressor after a predetermined stop time has elapsed.
Owner:DAIKIN IND LTD
Magnetostrictive torque sensor device, manufacturing method thereof, and vehicle steering apparatus
ActiveUS20090218162A1Detection precision can be improvedEasy to detectForce measurementWork measurementTorque sensorBobbin
A magnetostrictive torque sensor device which detects a torque applied to a rotary shaft is provided. The magnetostrictive torque sensor device includes a magnetostrictive portion provided on a surface of the rotary shaft, a coil and a cylindrical back-yoke disposed in outer periphery of the coil. The coil includes a bobbin arranged in outer periphery of the magnetostrictive portion, and a wire wound around the bobbin. A slit is provided on the back-yoke.
Owner:HONDA MOTOR CO LTD
Gas sensor element with increased durability and related manufacturing method
InactiveUS20070215469A1Detection precision can be improvedReduce material costsMaterial electrochemical variablesOptoelectronicsOxygen ions
A gas sensor element and a related manufacturing method are disclosed. The gas sensor element comprises a solid electrolyte body 11, having oxygen ion conductivity, which has both surfaces formed with a measuring gas detecting electrode and a reference gas detecting electrode, respectively, and a porous layer, covering the measuring gas detecting electrode and permeating measuring gases, which is formed using a porous layer green sheet containing fibrous organic materials, oriented in a direction substantially perpendicular to a thickness direction thereof, which are caused to burn down to form a coarse layer with large porosity in one area closer to the solid electrolyte and a dense layer with less porosity than that of the coarse layer in the other area remote from the solid electrolyte body to provide capability of permeating measuring gases in a direction perpendicular to a thickness direction of the porous layer.
Owner:DENSO CORP
Sign detection device and associated method
InactiveUS20080024660A1Detection precision can be improvedImprove image rejection ratioCurrent/voltage measurementTelevision systemsEngineeringElectrical and Electronics engineering
A sign detection device including a first comparing device for comparing a first input signal with a first threshold signal in a first period and a second period to generate a first output signal; a second comparing device for comparing a second input signal with a second threshold signal to generate a second output signal; a converter for optionally changing the polarity of the second output signal to obtain a third output signal; and an operator coupled to the first comparing device and the converter for performing a logic operation of the first output signal and the third output signal to obtain polarity information of the product of the first input signal and the second input signal.
Owner:XUESHAN TECH INC
Sensor control device
InactiveUS20090114536A1Large amount of heatReduce adverse effectsMaterial analysis by electric/magnetic meansTemperature senseElectricity
A sensor control device including a circuit board separate from and electrically connectable to a gas sensor, the gas sensor including a detecting element configured to output a concentration response signal in response to the concentration of a specific gas component. The circuit board has mounted thereon: a detecting element driving unit; a temperature sensing element configured to output a temperature response signal in response to a temperature of the circuit board; a temperature calculating unit; and a concentration information correcting unit configured to correct gas concentration information calculated by the detecting element driving unit based on temperature information calculated by the temperature calculating unit.
Owner:NGK SPARK PLUG CO LTD
Battery state of charge detection
InactiveUS7586290B2Detection precision can be improvedHybrid vehiclesAuxillary drivesBattery state of chargeElectrical battery
A state of charge of a battery (1) that drives a motor (6) is computed based on a discharge current measured by a current sensor (3) when the discharge current of the battery (1) does not exceed a rated discharge range of the battery (1). When the discharge current of the battery (1) exceeds the rated discharge range, the state of charge of the battery (1) is computed by estimating the discharge current of the battery (1) from a motor control signal, whereby current changes over a wide range can be found with good precision using the sensor (3), which has a narrow but high resolution measurable range, and the state of charge can be accurately detected.
Owner:NISSAN MOTOR CO LTD
Developer container, developing apparatus, process cartridge and image forming apparatus
InactiveUS20150125166A1Detection precision can be improvedElectrographic process apparatusVoltageMechanical engineering
Provided is a technology that enhances the detection precision of the residual amount of a developer. An apparatus according to the invention includes: an accommodating portion in which a developer is accommodated; a sheet-like stirring member that, by rotating, stirs the developer accommodated in the accommodating portion; a piezoelectric element that is affixed to the stirring member and that outputs voltage when being deformed; and a deflection forming portion that comes in contact with the stirring member, thereby causing the stirring member to deflect, when a free end of the rotating stirring member is outside a developer accumulation region in the accommodating portion.
Owner:CANON KK
Fall detecting device and fall detecting method
InactiveUS20110218460A1Suppress errorDetection precision can be improvedPerson identificationInertial sensorsElectricityElectrical conductor
A fall detecting device includes: a detector unit that includes a plurality of tilt sensors each including a pair of electrodes disposed to oppose each other with the positional relationship therebetween being fixed and a conductor capable of freely moving between the pair of electrodes and changing an electrical-connection state between the pair of electrodes by means of the movement of the conductor resulting from a variation in posture of the pair of electrodes, wherein the plurality of tilt sensors are arranged so that directions in which the pairs of electrodes are opposed to each other are perpendicular to each other; a multivalued data output unit that acquires the electrical-connection states between the pair of electrodes of the plurality of tilt sensors and converts the acquired electrical-connection state into multivalued data on the basis of the ratios of the electrical-connection states in a predetermined first period.
Owner:SEIKO EPSON CORP
Control device, robot, and robot system
InactiveUS20180129184A1Shorten cycle timeDetection precision can be improvedProgramme controlProgramme-controlled manipulatorRobotic systemsControl theory
A control device includes a processor that is configured to execute computer-executable instructions so as to control a robot that includes a robot arm including a force detector, wherein the processor is configured to reset the force detector after moving the robot arm at a first speed, and subsequently moves the robot arm at a second speed faster than the first speed and performs force control based on an output from the force detection unit.
Owner:SEIKO EPSON CORP
Driving instablity determination device
InactiveUS20130166159A1High precisionDetection precision can be improvedDigital data processing detailsAutomatic steering controlTime rangeDriver/operator
A driving instability determination device is provided to improve the precision in detecting the driving instability. The driving state determination section determines whether the state is a prescribed driving state by determining whether the information of the operation state of the driving operation unit and the vehicle state as the running state data is disturbed. Based on the running state data for detecting the unstable state of the driver, the running state distribution computing section excludes the running state data when the state is determined to be the prescribed driving state, and the running state distribution computing section computes the first and second running state distributions in different time ranges. The driving instability determination section determines the instability of the driving from the difference between the two computed running state distributions.
Owner:NISSAN MOTOR CO LTD
Digital watermark system
ActiveUS7277871B2Avoid rangeEasy to distinguishSpeech analysisData resettingComputer scienceAudio frequency
A digital watermark embedding apparatus generates an echo signal, which is delayed a time period corresponding to digital watermark information to be embedded with respect to each tone signal that forms an original audio signal, and inserts the generated echo signal in the original audio signal by spreading the echo signal on the time axis, thus outputting a watermarked audio signal. A digital watermark detection apparatus despreads echo signals contained in the watermarked audio signal on the time axis, and extracts digital watermark information from the generation time of the despread echo signal contained in the watermarked audio signal.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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