Length, Distance, Or Thickness Patents (Class 702/97)
  • Patent number: 11453348
    Abstract: A polyhedral sensor target includes multiple surfaces. A housing, such as a vehicle, may include a camera and a distance measurement sensor, such as a light detection and ranging (LIDAR) sensor. The housing may move between different positions during calibration, for instance by being rotated atop a turntable. The camera and distance measurement sensor may both capture data during calibration, from which visual and distance measurement representations of the polyhedral sensor target are identified. The camera and distance measurement sensor are calibrated based on their respective representations, for example by mapping vertices within the representations to the same location.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 27, 2022
    Assignee: GM Cruise Holdings LLC
    Inventor: Yongjun Wang
  • Patent number: 11391825
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining that prediction outputs generated by a prediction system are sensitive to variations in the values of one or more of a set of target sensor calibration parameters. In one aspect, a sensitivity analysis system is configured to perform operations comprising updating the values of one or more target sensor calibration parameters of each sensor data tuple of a plurality sensor data tuples, comprising, for each sensor data tuple: providing the sensor data tuple with the current values of the target sensor calibration parameters to the prediction subsystem to generate a current prediction output; determining a gradient of a function of the current prediction output with respect to the target sensor calibration parameters; and updating the current values of the target sensor calibration parameters of the sensor data tuple using the gradient.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 19, 2022
    Assignee: Waymo LLC
    Inventor: Colin Andrew Braley
  • Patent number: 11391828
    Abstract: A method is provided for filtering ultrasound image clutter. In the first stage of the method a data matrix is captured, wherein the data matrix contains information relating to the image, and singular value decomposition (SVD) is performed on the data matrix or a matrix derived from the data matrix. A spatial singular vector is then obtained from the SVD of the data matrix and a mean spatial frequency is estimated from them. A filtered data matrix is constructed based on the estimated mean spatial frequency and the SVD of the data matrix and a filtered image is constructed based on the filtered data matrix.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: July 19, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Francois Guy Gerard Marie Vignon, Jun Seob Shin, Sheng-Wen Huang, Jean-Luc Francois-Marie Robert
  • Patent number: 11370630
    Abstract: A sheet storage device includes a reel around which a tape is wound, a drum onto which a sheet is wound together with the tape, an input and output opening through which the sheet is passed, and a frame that forms at least a portion of a transport path on which the sheet is transported from the input and output opening to the drum, the frame has a first and a second frame part, the first and second frame parts move relative to each other to switch between a state in which the transport path is formed and a state in which at least a portion of the transport path is open, the first frame part supports the reel, and forms a tape path extending from the reel to the drum, the first frame part moves together with the reel and the tape path relative to the second frame part.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 28, 2022
    Assignee: GLORY LTD.
    Inventors: Takeshi Yokawa, Kei Isshiki
  • Patent number: 11320523
    Abstract: Provided is a robot, including: a chassis; a set of wheels coupled to the chassis; at least one motor; at least one motor controller; a range finding system; a plurality of sensors; a processor; and a medium storing instructions that when executed by the processor effectuates operations including: measuring, with the range finding system, distances to surfaces opposite the range finding system as the robot moves relative to the surfaces; monitoring, with the processor, the distance measurements taken by the range finding system; discarding, with the processor, outlier distance measurements that reflect an interruption in otherwise steadily fitting distance measurements taken as the robot moves towards and away from surrounding obstacles; and determining, with the processor, a position of an obstacle by identifying a position of the range finding system immediately before and after encountering the obstacle, signified by the interruption detected in the distance measurements.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: May 3, 2022
    Assignee: AI Incorporated
    Inventors: Ali Ebrahimi Afrouzi, Chen Zhang, Sebastian Schweigert
  • Patent number: 11280897
    Abstract: Disclosed are systems and methods that may be used for determining areas free of objects around a vehicle. The systems and methods include receiving first sensor data from a first sensor having a first field of view and a first range. The systems and methods also include receiving second sensor data from a second sensor having a second field of view and a second range. The systems and methods also include determining, by a processor, a first-sensor occlusion in the first field of view. The systems and methods further include determining, by the processor, an occlusion free-region of the first field of view based on data from the second sensor. Additionally, the systems and methods include operating, by the processor, the vehicle in an autonomous mode based on determining the occlusion free-region.
    Type: Grant
    Filed: March 31, 2019
    Date of Patent: March 22, 2022
    Assignee: Waymo LLC
    Inventors: Clayton Kunz, Larry Smith, Timothy Campbell
  • Patent number: 11269067
    Abstract: Piezoelectric sensor controllers may facilitate detection and identification of various potential fault states with parameter measurements. In an illustrative embodiment of a piezoelectric-based sensor having response-parameter-based fault diagnosis, the sensor includes a piezoelectric transducer and a controller. The controller drives the piezoelectric transducer to generate bursts of acoustic energy and, based on a response of the piezoelectric transducer to said driving, identifies a corresponding transducer state from a set of potential states including multiple transducer fault states.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 8, 2022
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jiri Kutej, Tomas Suchy, Marek Hustava, Pavel Horsky, Zdenek Axman
  • Patent number: 11255748
    Abstract: The present disclosure relates to methods and systems for measuring a component. First measurements for a plurality of features of the component are obtained from a first measurement instrument. Second measurements for at least one of the plurality of features of the component are obtained from a second measurement instrument, the second measurement instrument having a higher measurement resolution than the first measurement instrument. A scaling factor for the at least one of the plurality of features, which relates the first measurements to the second measurements, is determined. Scaled measurements for the plurality of features of the component are generated by applying the scaling factor to the first measurements. The scaled measurements are output as measurements of the component.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 22, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Mario Blais, Clement Drouin Laberge
  • Patent number: 11194028
    Abstract: Piezoelectric sensor controllers may facilitate detection and identification of various potential fault states with novel parameter measurements. In an illustrative embodiment of a piezoelectric-based sensor having a shorted-reverberation based resonant frequency measurement, the sensor includes a piezoelectric transducer that provides residual reverberation after being driven. The sensor further includes a controller that provides a low impedance path for the piezoelectric transducer during the residual reverberation and that measures current through the low impedance path to determine a resonant frequency of the piezoelectric transducer.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: December 7, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jiri Kutej, Tomas Suchy, Marek Hustava, Pavel Horsky, Zdenek Axman
  • Patent number: 11182891
    Abstract: Systems, methods, and computer readable medium are provided for determining a wall loss measurement associated with corrosion and/or erosion present within an insulated pipe. A calibration image is acquired for the pipe wall at a first location and used in conjunction with an inspection image acquired for the pipe wall at a second location to determine an inspection thickness of the pope wall. An amount of wall loss measurement can be determined based on a difference of a calibration thickness for the pipe wall at the first location and the inspection thickness of the pipe wall at the second location. The wall loss measurement characterizing an amount of wall material lost due to corrosion and/or erosion present in the pipe wall at the second location. The wall loss measurement can be output for further processing and/or display.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: November 23, 2021
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: George Sheri, Joris Vochten, Rasindh K K
  • Patent number: 11124200
    Abstract: A vehicle control device that is capable of performing abnormality determination of a sensor by majority decision without increasing the number of sensors. A vehicle control device includes a camera and a radar configured to detect a predetermined detection target; and a communication device configured to communicate with outside. The vehicle control device determines whether there is an abnormality in the camera and the radar on the basis of: first acquisition means configured to acquire information on the predetermined detection target from each of the camera and the radar; second acquisition means configured to acquire information, on the predetermined detection target, detected by a road-to-vehicle communication device external to an own vehicle and received by the communication device; information from the camera and the radar acquired by the first acquisition means; and information from the road-to-vehicle communication device external to the own vehicle acquired by the second acquisition means.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 21, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshitaka Fukasawa, Masahito Mitsuhashi, Takayuki Kawashima
  • Patent number: 10964566
    Abstract: The current disclosure describes techniques for managing vertical alignment or overlay in semiconductor manufacturing using machine learning. Alignments of interconnection features in a fan-out WLP process are evaluated and managed through the disclosed techniques. Big data and neural networks system are used to correlate the overlay error source factors with overlay metrology categories. The overlay error source factors include tool related overlay source factors, wafer or die related overlay source factors and processing context related overlay error source factors.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 30, 2021
    Assignee: Taiwan Semiconductor Manufacturing Go., Ltd.
    Inventors: Tzu-Cheng Lin, Y.Y. Peng, Jerry Wang, Kewei Zuo, Chien Rhone Wang
  • Patent number: 10705184
    Abstract: When a combination of a plurality of sensors is used for obstacle detection, the present invention is to detect the relative positions of the sensors, to correct inter-sensor parameters, and to provide accurate obstacle detection. This calibration system is provided with a first landmark detecting unit for detecting the position of a first landmark from three-dimensional shape information; a landmark associating unit for determining a correspondence relation, between the first landmark position detected by the first landmark detecting unit and an attachment position to the vehicle of the first landmark estimated by a vehicle landmark relative position estimating unit; and a vehicle sensor relative orientation estimating unit for estimating the relative position and orientation of the vehicle and a first measurement section based on the information from the vehicle landmark relative position estimating unit and a landmark associating unit.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 7, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Yusuke Hieida, Takuya Naka
  • Patent number: 10636158
    Abstract: A mobile computing device used for measuring the height of an object, such as a human user, may be positioned on a reference surface, such as the ground plane. The reference surface is detected and a position guide is generated in an augmented reality (AR) plane on a display of the mobile computing device. The AR plane enables the object being measured to be positioned at a measurement position located at a predefined distance along the reference surface from the mobile computing device. The top and bottom of the object are detected in an image taken by the mobile computing device. The height of the object is measured based on the predefined distance and a distance between the top and bottom of the object in the image. The height of the object can also be measured with assistance from software development kits (SDKs) included in the mobile computing device.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: April 28, 2020
    Assignee: Bodygram, Inc.
    Inventors: Kyohei Kamiyama, Chong Jin Koh
  • Patent number: 10534072
    Abstract: Provided are an object detection device, POS terminal device, object detection method, and program capable of carrying out appropriate processing according to whether an object is covered by a translucent container. A distance measurement unit measures the distances to each position on an opposing object. An irradiation unit irradiates light onto the object. A reflected light intensity measurement unit measures the intensities of the reflected light that has been irradiated by the irradiation unit and reflected from each position on the object. An object determination unit determines whether the object is covered by a translucent container based on the distances measured by the distance measurement unit and the reflected light intensities measured by the reflected light intensity measurement unit.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 14, 2020
    Assignee: NEC Corporation
    Inventors: Soma Shiraishi, Shoji Yachida
  • Patent number: 10360315
    Abstract: The object is to enable easy acquisition of an element that is not design data. The technique is characterized in that when generating construction field management information used to manage a construction field, a construction field management device acquires measurement data that is three-dimensional shape data measured by a measurement device, and compares design data created by a designer with the acquired measurement data, thus extracting non-design data that is not the design data, from the measurement data. Also, as the non-design data, data of a scaffolding/tool and a component of the design data in a temporarily placed state are extracted, and the status of these is analyzed and displayed on a display unit.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: July 23, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Seki, Satoshi Shimakura
  • Patent number: 10235127
    Abstract: Systems, devices, apparatuses, components, methods, and techniques for cadence determination and media content selection are provided. An example media-playback device comprises a media-output device that plays media content items, a cadence-acquiring device, and a cadence-based media content selection engine. The cadence-acquiring device includes an accelerometer and a cadence-determination engine configured to determine a cadence based on acceleration data captured by the accelerometer. The cadence-based media content selection engine is configured to identify a media content item based on the cadence determined by the cadence-determining engine and cause the media-output device to playback the identified media content item.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 19, 2019
    Assignee: Spotify AB
    Inventors: Tristan Jehan, Sten Garmark, Dariusz Dziuk, Rahul Sen, Owen Smith, Lars Christian Olofsson, Nikolaos Toumpelis
  • Patent number: 10234274
    Abstract: A method for measuring the thickness on measurement objects, whereby at least one sensor measures against the object from the top and at least one other sensor measures against the object from the bottom and, at a known distance of the sensors to one another, the thickness of the object is calculated according to the formula D=Gap?(S1+S2), whereby D=the thickness of the measurement object, Gap=the distance between the sensors, S1=the distance of the top sensor to the upper side of the measurement object, and S2=the distance of the bottom sensor to the underside of the measurement object, is characterized by the compensation of a measurement error caused by tilting of the measurement object and/or by displacement of the sensors and/or by tilting of the sensors, whereby the displacement and/or the tilting is determined by calibration and the calculated thickness or the calculated thickness profile is corrected accordingly. The invention further concerns a device for applying the method.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: March 19, 2019
    Assignee: MICRO-EPSILON Messtechnik GmbH & Co. KG
    Inventors: Herbert Fuellmeier, Guenter Schallmoser
  • Patent number: 10197400
    Abstract: Aspects of the present invention relate to systems and methods for calibrating an autonomous navigation system. According to a first aspect of the present invention, calibration of the autonomous navigation system may be controlled by a calibration map.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: February 5, 2019
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Basil Isaiah Jesudason, Darin Joseph Haines, Ahmet Mufit Ferman
  • Patent number: 10060746
    Abstract: The present invention provides methods and systems related to determine a state of the UAV by updating a determined state of UAV with a relative proportional relationship. The UAV may be provided with a monocular camera, a proximity sensor and a processor. The processor may determine external state information of the UAV based on image data captured by the monocular camera, and calculate a relative proportional relationship to be applied to the determined external state information. The updated external state information of the UAV may be more precise or even equal to the actual state information of the UAV, thus enabling more accurate control and navigation for the autonomous flight.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: August 28, 2018
    Assignee: SZ DJI TECHNOLOGY CO., LTD
    Inventors: Guyue Zhou, Shuo Yang, Ang Liu
  • Patent number: 9961504
    Abstract: A mobile device comprises a communicator configured to communicate with another communication device; an acceleration sensor configured to detect an acceleration value; a direction sensor configured to detect a change of a direction of the mobile device; and at least one controller configured to determine number of steps of a user of the mobile device based on the acceleration value, and a direction of walking of the user based on the change of the direction of the mobile device to perform notification to the other communication device through the communicator when cumulative number of steps of the walking of the user in one of directions exceeds a first value.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: May 1, 2018
    Assignee: KYOCERA CORPORATION
    Inventors: Shigeki Tanabe, Hideki Morita, Isao Masuike, Shinya Saito
  • Patent number: 9945937
    Abstract: A calibration method includes forming an external optical path, forming an internal optical path, and conducting a phase comparison between the second part of signals of the internal and external optical paths sequentially received by a second receiving device and the first part of signals of the internal and external optical paths sequentially received by a first receiving device. Two-way phase signals are outputted with part of a base reference being eliminated. Phase comparison is conducted again between the two-way signals with part of the base reference being eliminated, and the final phase signal is outputted with the base reference being eliminated. The distance-measuring device includes a transmitting device, first reflective surface, first and second receiving devices, first and second filters, and a phase detector.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: April 17, 2018
    Assignee: JIANGSU LAITZ OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xin Du, Baiwen Qiao, Xiaoyi Zha, Xi Liu
  • Patent number: 9897486
    Abstract: A method of calibrating a measuring apparatus includes determining apparatus parameters that have an influence on a measurement spectrum generated by the measuring apparatus, generating the measurement spectrum by exposing a measurement target on a sample to light generated by the measuring apparatus, calculating an error of the apparatus parameters by comparing the measurement spectrum to an ideal spectrum corresponding to the apparatus parameters, and calibrating the measuring apparatus based on the calculated error of the apparatus parameters.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-Yong Jo, Young-Joo Lee, Chang-Hoon Choi, Jong-Jeong Kim
  • Patent number: 9834208
    Abstract: A parking steering assistance system is provided that calculates and provides a parking guide line applied with a tire dynamic radius value. The system includes an obstacle recognition unit configured to recognize an obstacle adjacent to a vehicle after parking is completed. A distance calculating unit is configured to calculate distance information between the obstacle and the vehicle, and a parking controller is configured to control a tire dynamic radius correction which is applied when calculating a parking guide line by using the distance information between the obstacle and the vehicle.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: December 5, 2017
    Assignee: Hyundai Motor Company
    Inventor: Keun Gyu Yu
  • Patent number: 9551784
    Abstract: Systems, methods, and devices for an intrusion detection system are described herein. For example, one or more embodiments include transmitting a DSSS signal, receiving a reflected DSSS signal from a target, correlating the reflected DSSS signal and the transmitted DSSS signal, and determining a distance to the target based on the correlation between the reflected DSSS signal and the transmitted DSSS signal.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: January 24, 2017
    Assignee: Honeywell International Inc.
    Inventors: SrinivasaRao Katuri, Steve Huseth, Amit Kulkarni
  • Patent number: 9488721
    Abstract: An image processing apparatus includes an edge extracting section which extracts an edge in a range image and a removing section which removes a distance value of a pixel of an edge part extracted by the edge extracting section in the range image.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 8, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toshihiro Kitajima, Tomoyuki Kamiyama
  • Patent number: 9474955
    Abstract: A wearable device assembly has a housing supporting a controller, display and indicator system thereon. The controller has at least one sensor wherein activity of a user wearing the device is detected. The controller selectively illuminates the indicator system to indicate a level of activity of the user.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: October 25, 2016
    Assignee: NIKE, Inc.
    Inventors: Jamian R Cobbett, Aaron B Weast
  • Patent number: 9357355
    Abstract: A method, in a mobile device, of controlling region determination by the mobile device, includes: determining a present pressure at the mobile device; determining, based on the present pressure and a reference pressure, that the mobile device moved from a first region to a second region within a structure, the first region and the second region being different regions of the structure and vertically displaced from each other; and performing region determination in response to determining that the mobile device moved from the first region to the second region.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: May 31, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Pradeep Venkatraman, Lionel Jacques Garin, Gengsheng Zhang
  • Patent number: 9323322
    Abstract: A method comprises capturing image frames of an input area using a plurality of imaging devices, each having a field of view encompassing at least a portion of the input area; processing captured image frames to identify a plurality of targets therein; analyzing the identified plurality of targets to determine if the targets represent a plurality of projections of an input object; and if so, identifying a pattern of the projections thereby to identify the input object.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: April 26, 2016
    Assignee: SMART Technologies ULC
    Inventor: Grant McGibney
  • Patent number: 9038434
    Abstract: In a method for calibrating a star probe of an image measuring machine, the star probe includes one or more probe heads. Probe configuration information for the star probe is configured when there is no probe configuration file of the star probe stored in a storage device of the image measuring machine, and one of the probe heads to be calibrated is selected from the star probe. The method calibrates a radius value of the selected probe head, and calibrates the deviation between the center point of the selected probe head and the focus of the camera lens. The method further generates a star probe model of the star probe according to the probe configuration information and the probe calibration information, and displays the star probe model of the star probe on a display device of the image measuring machine.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: May 26, 2015
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chih-Kuang Chang, Zheng-Cai She, Zhong-Kui Yuan, Zhi-Jun Zou, Dong-Hai Li
  • Publication number: 20150127286
    Abstract: A wearable device has a carrier having an aperture. A device has a USB connection and a protrusion wherein the protrusion is received in the aperture to connect the device to a wristband. The device is a USB type device having athletic functionality. The device may further be configured to receive calibration data such that a measured distance may be converted to a known distance based on athletic activity performed by a user.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 7, 2015
    Inventors: Matt Capozzi, Michael T. Hoffman, Tomislav Lakovic, Hector Moll-Carrillo, Christopher A. Robinette
  • Patent number: 9026392
    Abstract: A method for measuring the height of a person is provided. A person is positioned in a room having a floor and a ceiling, and the method comprises the steps of: i) providing a measuring device; ii) calibrating the measuring device to determine a first distance from the floor to the ceiling; iii) placing the measuring device on the person's head; iv) measuring a second distance from the person's head to the ceiling; and v) subtracting the second distance from the first distance to calculate the person's height. An apparatus for performing the measurement is also included.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 5, 2015
    Assignee: Zoe Medical Incorporated
    Inventors: Peter Staats, Stephen Staats
  • Publication number: 20150120232
    Abstract: A shape calculation apparatus obtains measurement data of a first shape of a first partial region on a surface to be measured, and obtains measurement data of a second shape of a second partial region partially overlapping the first partial region on the surface to be measured. The apparatus determines a first shape correction parameter and a second correction parameter so that the value of an evaluation function for evaluating shape data obtained by correcting the measurement data of the first and second shapes by the first shape correction parameter and the second correction parameter falls within a tolerance range. The apparatus generates shape data of an entire region including the first and second partial regions by respectively correcting the measurement data of the first and second shapes using the first shape correction parameter and the second correction parameter, and combining the corrected shape data.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Tetsuji OOTA, Mahito NEGISHI, Takuya YAMASHITA
  • Publication number: 20150088448
    Abstract: The invention is applicable to the field of phase type photoelectric distance measurement and provides a calibration method based on phase measurement of a double-wavelength laser tube and a distance measurement device of the double-wavelength laser tube. The method comprises the following steps of: 1, forming an external optical path; 2, forming an internal optical path; and 3, sequentially switching a first light-wave and a second light-wave of light-wave transmitting devices (1 and 2) during operation of the steps 1 and 2 to compare phases of the sequentially-received light-waves of the internal and external optical paths through a receiving device (7), and outputting a phase signal for eliminating a base reference.
    Type: Application
    Filed: March 31, 2012
    Publication date: March 26, 2015
    Applicant: JIANGSU LAITZ OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xin Du, Baiwen Qiao, Xiaoyi Zha
  • Publication number: 20150051862
    Abstract: Methods are described for measuring series of nominally identical production workpieces on a dimensional measuring apparatus such as a coordinate measuring machine. One master workpiece of the series is calibrated, to provide correction values which are used to build an error map of the measuring apparatus. This map is used to correct measurements not only of subsequent nominally identical workpieces of the same series, but also of multiple different subsequent series of different workpieces. Each subsequent series also has a master workpiece which is calibrated and used to further build the error map. As this process is repeated over time, the error map becomes more and more densely populated. In due course, it becomes possible to dispense with the use of a calibrated master workpiece, because measurements can be corrected using error values which already exist in the error map.
    Type: Application
    Filed: March 21, 2013
    Publication date: February 19, 2015
    Inventor: Kevyn Barry Jonas
  • Patent number: 8942842
    Abstract: A method of generating a library of reference spectra includes storing an optical model for a layer stack having at a plurality of layers, receiving user input identifying a set of one or more refractive index functions and a set of one or more extinction coefficient functions a first layer from the plurality of layers, wherein the set of one or more refractive index functions includes a plurality of different refractive index functions or the set of one or more extinction coefficient functions includes a plurality of different extinction coefficient functions, and for each combination of a refractive index function from the set of refractive index functions and an extinction coefficient function from the set of extinction coefficient functions, calculating a reference spectrum using the optical model based on the refractive index function, the extinction coefficient function and a first thickness of the first layer.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: January 27, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Jeffrey Drue David, Dominic J. Benvegnu, Xiaoyuan Hu
  • Patent number: 8903680
    Abstract: An apparatus for evaluating layers, including interlayer gaps, in a multi-layer structure; the multi-layer structure presenting a plurality of edges generally aligned athwart an axis; the apparatus includes: (a) a sensing unit configured for sensing at least one parameter; (b) a positioning unit coupled with the sensing unit; the positioning unit being configured to effect moving the sensing unit generally along the axis; and (c) a control unit coupled with at least one of the positioning unit and the sensing unit. The control unit provides an electrical signal to the sensing unit. The control unit monitors changes in the at least one parameter as the sensing unit moves past the plurality of edges. The control unit employs the changes in the at least one parameter to effect the evaluating.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: December 2, 2014
    Assignee: The Boeing Company
    Inventors: John R. Linn, Jeffrey G. Thompson
  • Publication number: 20140342642
    Abstract: The method includes: calculating an increment of a sliding distance of a dresser by multiplying a relative speed between the dresser and a polishing member by a contact time between them; correcting the increment of the sliding distance by multiplying the calculated increment of the sliding distance by at least one correction coefficient; calculating the sliding distance by repeatedly adding the corrected increment of the sliding distance to the sliding distance according to elapse of time; and producing the sliding-distance distribution of the dresser from the obtained sliding distance and a position of a sliding-distance calculation point. The at least one correction coefficient includes an unevenness correction coefficient provided for the sliding-distance calculation point.
    Type: Application
    Filed: February 19, 2014
    Publication date: November 20, 2014
    Inventors: Takahiro SHIMANO, Mutsumi TANIKAWA, Hisanori MATSUO, Kuniaki YAMAGUCHI, Katsuhide WATANABE
  • Patent number: 8891068
    Abstract: A measuring apparatus for optically measuring a distance to a target object is described. The measuring apparatus has a transmitting device for emitting periodically modulated optical measuring radiation towards the target object, a receiving device for detecting optical measuring radiation which returns from the target object, and an evaluation device for receiving and evaluating detection signals from the receiving device. The measuring apparatus also has a calibration device for calibrating the measuring apparatus, wherein the calibration device is designed to calibrate the measuring apparatus on the basis of detection of uncorrelated radiation which does not correlate with the modulated measuring radiation emitted by the transmitting device. In this case, the uncorrelated radiation may be in the form of background radiation. Alternatively, uncorrelated measuring radiation can be emitted by the transmitting device and can be detected by the receiving device.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: November 18, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Eisele, Oliver Wolst, Bernd Schmidtke
  • Patent number: 8884636
    Abstract: Disclosed is a sensor that can accurately detect displacement and prevents the phenomenon of a contact section between a shaft member and a sliding element receiver being shifted. The sensor comprising: a case having a through hole; a resistance substrate fixed at an inside of said case; a shaft member having a first end portion which is one end of the shaft member placed within said case and a second end portion which is other end of the shaft member exposed to an outside of said case from said through hole, said shaft member being placed at said through hole in a movable manner in an axial direction; and a sliding element receiver having a bearing end contacting with said second end portion of said shaft member, and attached with a brush sliding together with said resistance substrate, said sliding element receiver being capable of moving relatively against said resistance substrate with said shaft member. A hemispherical end face is formed at said first end portion.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: November 11, 2014
    Assignee: Eagle Industry Co., Ltd.
    Inventor: Mikio Nitta
  • Patent number: 8886493
    Abstract: Determining dipper geometry. A method of determining dipper geometry includes obtaining a first set of data associated with an industrial machine for a first orientation of the industrial machine, and obtaining a second set of data associated with the industrial machine for a second orientation of the industrial machine. The first set of data includes at least one of a first length associated with a hoist rope and a first angle associated with the hoist rope, and the second set of data includes at least one of a second length associated with the hoist rope and a second angle associated with the hoist rope. The value of the physical characteristic of the dipper is then determined based on the first set of data and the second set of data.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: November 11, 2014
    Assignee: Harnischfeger Technologies, Inc.
    Inventor: Wesley P. Taylor
  • Patent number: 8868366
    Abstract: The present invention provides a method of calculating a surface shape of a target surface, including the steps of defining, as a measurement target region, each of a plurality of regions on the target surface in which adjacent regions overlap each other, and obtaining data that give the heights at the plurality of positions in each of the plurality of regions, and removing, for each of the plurality of regions, an average data from the data that are obtained in the step of obtaining the data and give the heights at the plurality of positions in each of the plurality of regions, thereby generating correction data for each of the plurality of regions.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: October 21, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akihiro Nakauchi
  • Patent number: 8831909
    Abstract: Step detection and step length estimation techniques include detecting salient points in sensor data of one or more sensors. A step frequency is estimated based on a time interval between the detected salient points. A step length of the step may then be computed based on a nonlinear combination of the estimated step frequency and a function of the sensor data, and/or a step model. Alternatively, the step length of the step may be computed based on a combination of a nonlinear function of the estimated step frequency and a (linear or nonlinear) function of the sensor data, and/or a step model.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 9, 2014
    Assignee: Microsoft Corporation
    Inventors: Fan Li, Chunshui Zhao, Feng Zhao
  • Patent number: 8825423
    Abstract: This document generally describes technology to verify the calibration of a materials testing system, such as a compact tension testing system. The calibration of a materials testing system can be verified based on the results generated from the materials testing system running one or more tests on a calibration specimen with one or more known characteristics.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 2, 2014
    Assignee: Testquip, LLC
    Inventor: Thomas E. Brovold
  • Patent number: 8781780
    Abstract: The present invention provides an electro-optical distance measurement, wherein a light from a light source (6) is projected toward an object to be measured (2), a reflection light reflected by the object to be measured is received at a photodetection unit (8), the light from the light source is received by the photodetection unit as an inner light via an inner optical path (11), and a distance to the object to be measured is measured according to the result of photodetection of the reflection light and the inner light of the photodetection unit, and wherein a correction information is acquired based on the inner light, the acquired correction information is stored, a correction value is obtained from the correction information based on the reflection light and the inner light, and a distance is calculated from the correction value and the result of photodetection of the reflection light and the inner light.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: July 15, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Mitsuru Kanokogi, Masahiro Ohishi
  • Publication number: 20140195187
    Abstract: A coating thickness measuring instrument has a probe for measuring the thickness of a coating applied to a substrate and producing an output relating to the measured thickness; a memory storing calibration data; and a processor arranged to process the output produced by the probe, together with calibration data stored by the memory, and produce a coating thickness measurement. The memory stores at least two sets of calibration data, each set associated with a different surface profile value and a user may select the set of calibration data to be used by the processor according to the surface profile of the substrate on which a measurement is to be made. This enables a user to make coating thickness measurements on substrates with at least two different, known, surface profiles without having to calibrate the instrument specifically for those surfaces.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 10, 2014
    Applicant: Elcometer Limited
    Inventors: Michael Carrington Sellars, Joseph J. Walker
  • Patent number: 8761997
    Abstract: A method for controlling at least one component of a motor vehicle provided with energy storage means. The method comprises the steps of determination of an energy reserve value of the vehicle; evaluation of at least one critical energy autonomy threshold; and comparison of the energy reserve value with at least one critical autonomy threshold so as to deduce therefrom a setpoint signal for controlling the component.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: June 24, 2014
    Assignee: Valeo Vision
    Inventors: Martin Grimm, Pierre Albou
  • Patent number: 8738324
    Abstract: A simulation system for predicting a likelihood of whether a target object positioned in an environment will be detected by a detection system when illuminated by a laser source. The simulation system may be used for a laser rangefinder application and a laser designator application. The simulation system may provide a detection probability of the target object at a specified range to the detection system or a plurality of detection probabilities as a function of the range to the detection system. The simulation system may provide an indication of an overlap of the beam provided by the laser source on the target object. The simulation system may determine the effect of vibration on the detection of the target object at a specified range.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: May 27, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Jerry G Brown
  • Patent number: 8718962
    Abstract: A calibrating method of calibrating a measured distance of a measured object measured by a distance-measuring device according to an ambient temperature includes providing a temperature sensor for measuring the ambient temperature of the distance-measuring device, calculating a calibrated imaging location of the measured object according to the ambient temperature and an imaging location of the measured object, and calibrating the measured distance according to the calibrated imaging location. In this way, when the distance-measuring device measures the measured object, the error due to the variation of the ambient temperature is avoided according to the calibrating method.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 6, 2014
    Assignee: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Chi-Chieh Liao, Ming-Tsan Kao
  • Patent number: 8712713
    Abstract: A method and apparatus for combining pressure information from pressure sensors, motion information from dead reckoning or other motion sensors, such as accelerometers, gyroscopes, and geomagnetic sensors, and temperature information from temperature sensors, to separate a change in altitude from a change in environmental pressure or temperature. A change in measured pressure without any motion or change in temperature must be a weather-related barometric pressure change. If there is an associated temperature change, but no motion, and the rate of change is too fast for a normal weather change, the measured change represents a change in sensitivity of the pressure sensor with temperature, and the sensor calibration can be adjusted. A rapid change in pressure, associated with horizontal motion, but no measurable vertical motion represents a movement into a different pressure environment. Only changes in pressure that are associated with measurable vertical motion are true changes in altitude.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: April 29, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Thomas G Wolf