Patents by Inventor Xiaoxiang Chen
Xiaoxiang Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11977165Abstract: The technology relates to handling of self-reflections of sensor signals off of a portion of a vehicle that is operating in an autonomous driving mode. Vehicle pose information and sensor pose information are determined at a given point in time while operating in the autonomous driving mode. Return signals from one or more scans of the environment are received from onboard sensors such as lidar sensors. The system evaluates, based on the vehicle and sensor pose information, whether a segment between a given one of the one or more sensors and a received point from a selected one of the return signals crosses any surface of a 3D model of the vehicle. The received point is identified as a self-return point. In response to identifying the received point as a self-return point, the vehicle is able to perform a driving operation in the autonomous driving mode.Type: GrantFiled: August 10, 2020Date of Patent: May 7, 2024Assignee: Waymo LLCInventors: Mingcheng Chen, Xiaoxiang Hu, Richard Chaussee
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Publication number: 20240134054Abstract: Aspects and implementations of the present disclosure address shortcomings of the existing technology by enabling Doppler-assisted segmentation of points in a point cloud for efficient object identification and tracking in autonomous vehicle (AV) applications, by: obtaining, by a sensing system of the AV, a plurality of return points comprising one or more velocity values and one or more coordinates of a reflecting region that reflects a signal emitted by the sensing system, the one or more velocity values and the one or more coordinates obtained for the same instance of time, identifying that the set of the return points is associated with an object in an environment, and causing a driving path of the AV to be determined in view of the object.Type: ApplicationFiled: December 11, 2023Publication date: April 25, 2024Inventors: Nicholas Armstrong-Crews, Mingcheng Chen, Xiaoxiang Hu
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Publication number: 20240096087Abstract: A video processing collaboration method includes transmitting a video processing capability request and a video analysis capability request to a terminal device, receiving video processing capability information and video analysis capability information from the terminal device based on the video processing capability request and the video analysis capability request, determining a video processing collaboration configuration based on the video processing capability information and a video analysis collaboration configuration based on the video analysis capability information, allocating an image processing task to the terminal device, to the cloud server, or to both the terminal device and the cloud server, based on the video processing collaboration configuration, and allocating an image analysis task to the terminal device, to the cloud server, or to both the terminal device and the cloud server, based on the video analysis collaboration configuration.Type: ApplicationFiled: November 30, 2023Publication date: March 21, 2024Applicant: TENCNET TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Hongbin CAO, Sijia CHEN, Yongcheng HUANG, Jian CAO, Xiaoxiang YANG, Jia ZHANG
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Patent number: 10884563Abstract: A method for determining a change of an initial distance of a sensing electrode is provided. The method includes: calculating a real-time pressure output by each sensing electrode according to real-time feature data output by each sensing electrode in a touch screen when a pressure is applied on the touch screen and a corresponding relationship between the feature data and the pressure; rectifying the real-time pressure output by each sensing electrode according to prestored relative elastic coefficients at different press positions relative to each sensing electrode; and determining a sensing electrode whose initial distance is changed among all the sensing electrodes according to a difference between the rectified real-time pressures output by different sensing electrodes, to calibrate the corresponding relationship between the feature data and the pressures of the sensing electrode whose initial distance is changed.Type: GrantFiled: August 23, 2018Date of Patent: January 5, 2021Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Xintao Gui, Xiaoxiang Chen, Xiang Zhong
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Patent number: 10534469Abstract: The present invention relates to the field of touch technologies, and provides a force detection method, apparatus and device. The force detection method includes: receiving a deformation caused by external force and identified by at least one sensing electrode, and converting the deformation into a corresponding raw feature value characterized by an electrical signal, wherein the raw feature value corresponds to the force; and calculating force information fed back by the at least one sensing electrode according to the raw feature value of the at least one sensing electrode. With the force detection method, apparatus and device according to the invention, when a plurality of positions is pressed by force, the force information at each position may be accurately acquired. In practice, multi-finger press detection may be implemented on the touch screen by using fewer electrodes, thereby reducing the cost and improving the user experience.Type: GrantFiled: April 2, 2018Date of Patent: January 14, 2020Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Xintao Gui, Xiaoxiang Chen, Jian Cui, Zhiyou Chen
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Patent number: 10474273Abstract: The present disclosure provide a method for detecting a force, including: acquiring a plurality of sample data of a first electronic device, where each of the plurality of sample data includes a preset force and raw data of the first electronic device, and the raw data of the first electronic device is obtained by detecting a deformation signal generated by the preset force applied to an input medium of the first electronic device; and determining a fitting function according to the plurality of sample data of the first electronic device, where the fitting function denotes a corresponding relationship between a force applied to the input medium of the first electronic device and detected raw data, and the fitting function is used for a second electronic device to determine a force corresponding to raw data detected when an input medium of the second electronic device is subjected to an acting force.Type: GrantFiled: September 3, 2017Date of Patent: November 12, 2019Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Xintao Gui, Xiaoxiang Chen, Xiang Zhong
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Patent number: 10429982Abstract: The present disclosure provide a method for detecting a force, including: acquiring a plurality of sample data of a first electronic device, where each of the plurality of sample data comprises a preset force and raw data of the first electronic device, the raw data of the first electronic device is obtained by detecting a deformation signal which is generated by applying the preset force on an input medium of the first electronic device; and determining a fitting function according to the plurality of sample data, where the fitting function denotes a corresponding relationship between a force applied to the first electronic device and detected raw data, and the fitting function is for allowing a second electronic device to determine a force corresponding to detected raw data when an input medium of the second electronic device is subjected to an acting force.Type: GrantFiled: September 3, 2017Date of Patent: October 1, 2019Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Xintao Gui, Xiaoxiang Chen, Xiang Zhong
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Patent number: 10241632Abstract: The present disclosure relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as no touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode and determining whether the touch exists in the mutual capacitance mode, updating no reference in the mutual capacitance mode if the touch exists, and updating the reference in the mutual capacitance mode if no touch exists.Type: GrantFiled: September 9, 2017Date of Patent: March 26, 2019Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Lei Dai, Zhenyu Zhong, Jinchun Ye, Haolei Wang, Xiaoxiang Chen
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Publication number: 20180364867Abstract: A method for determining a change of an initial distance of a sensing electrode is provided. The method includes: calculating a real-time pressure output by each sensing electrode according to real-time feature data output by each sensing electrode in a touch screen when a pressure is applied on the touch screen and a corresponding relationship between the feature data and the pressure; rectifying the real-time pressure output by each sensing electrode according to prestored relative elastic coefficients at different press positions relative to each sensing electrode; and determining a sensing electrode whose initial distance is changed among all the sensing electrodes according to a difference between the rectified real-time pressures output by different sensing electrodes, to calibrate the corresponding relationship between the feature data and the pressures of the sensing electrode whose initial distance is changed.Type: ApplicationFiled: August 23, 2018Publication date: December 20, 2018Inventors: Xintao GUI, Xiaoxiang CHEN, Xiang ZHONG
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Publication number: 20180224995Abstract: The present invention relates to the field of touch technologies, and provides a force detection method, apparatus and device. The force detection method includes: receiving a deformation caused by external force and identified by at least one sensing electrode, and converting the deformation into a corresponding raw feature value characterized by an electrical signal, wherein the raw feature value corresponds to the force; and calculating force information fed back by the at least one sensing electrode according to the raw feature value of the at least one sensing electrode. With the force detection method, apparatus and device according to the invention, when a plurality of positions is pressed by force, the force information at each position may be accurately acquired. In practice, multi-finger press detection may be implemented on the touch screen by using fewer electrodes, thereby reducing the cost and improving the user experience.Type: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Inventors: Xintao Gui, Xiaoxiang Chen, Jian Cui, Zhiyou Chen
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METHOD FOR REALIZING FUNCTION ADJUSTMENT BY USING A VIRTUAL FRAME REGION AND MOBILE TERMINAL THEREOF
Publication number: 20180113591Abstract: The present disclosure provides a method of realizing function adjustment by using a virtual frame region and a mobile terminal thereof, the method comprises: sensing a touch event concurrently with a contact, and determining whether the touch event belongs to a sliding event; when the touch event belongs to the sliding event, further determining a direction attribute and a location of the sliding event; when the sliding event occurs in the first virtual frame region, switching a function item currently displayed in the first virtual frame region according to the direction attribute; and when the sliding event occurs in the second virtual frame region, adjusting the function parameters of the current function item according to the direction attribute. In the present disclosure, the left side section and right side section of the virtual frame region are set as a function switching region and a function parameter adjusting region, respectively. User experience can be greatly enhanced.Type: ApplicationFiled: April 20, 2016Publication date: April 26, 2018Inventors: Xiaoxiang CHEN, Yingchao MA -
Patent number: 9952712Abstract: The present invention provides a method for communication between a touch control device and an external device, comprising the following steps: when an external device communicates with a touch screen, sending, by the external device, 1-bit data to the touch screen within each sending period, wherein the 1-bit data sent within each sending period is a combination of a valid signal and an invalid signal, or an invalid signal; scanning, by the touch screen, the bit data based on a predetermined scanning period to obtain N frames of scanned data, wherein the predetermined scanning period is 1/N of the sending period; obtaining a strength of an LCD interference signal according to one frame of data having a minimum signal strength among the N frames of scanned data; and reducing noise for the N frames of scanned data according to the strength of the LCD interference signal.Type: GrantFiled: March 30, 2016Date of Patent: April 24, 2018Assignee: SHENZHEN GOODIX TECHNOLOGY CO, LTD.Inventors: Xiaoxiang Chen, Jun Fang
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Patent number: 9946378Abstract: Noise reduction method and system for a touch detection device are disclosed. The noise reduction method includes: step A, performing a synchronous sampling on the touch detection nodes in one same group and storing the sampling data; step B, comparing each sampling data against a corresponding reference data to calculate a differential data which, as a detection data, replaces a corresponding original sampling data; step C, calculating statistics of the replacing detection data to screen out valid data to calculate a DC offset component indicative of a noise ingredient; and step D, obtaining noise-filtered detection data by subtracting the DC offset component from each detection data.Type: GrantFiled: September 27, 2013Date of Patent: April 17, 2018Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Gengchun Deng, Xiaoxiang Chen
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Publication number: 20180081482Abstract: A pressure detection method includes: using a pressure sensing layer to sense multiple values of pressure parameter variation generated by a user's pressing operation; generating multiple feature values according to the multiple values of pressure parameter variation; selecting at least one feature value from the multiple feature values as a current feature value; obtaining a predetermined relationship between feature value of a current sensing unit and pressure from predetermined relationships between multiple feature values of the sensing units and pressures; and calculating a current pressure corresponding to the current feature value according to the predetermined relationship between feature value of the current sensing unit and pressure. A touch control chip and the pressure detection module are also provided.Type: ApplicationFiled: November 15, 2017Publication date: March 22, 2018Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Xintao GUI, Xiaoxiang CHEN, Xiang ZHONG
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Publication number: 20180011583Abstract: The present disclosure provide a method for detecting a force, including: acquiring a plurality of sample data of a first electronic device, where each of the plurality of sample data includes a preset force and raw data of the first electronic device, and the raw data of the first electronic device is obtained by detecting a deformation signal generated by the preset force applied to an input medium of the first electronic device; and determining a fitting function according to the plurality of sample data of the first electronic device, where the fitting function denotes a corresponding relationship between a force applied to the input medium of the first electronic device and detected raw data, and the fitting function is used for a second electronic device to determine a force corresponding to raw data detected when an input medium of the second electronic device is subjected to an acting force.Type: ApplicationFiled: September 3, 2017Publication date: January 11, 2018Inventors: Xintao GUI, Xiaoxiang CHEN, Xiang ZHONG
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Publication number: 20170371455Abstract: The present disclosure relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as no touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode and determining whether the touch exists in the mutual capacitance mode, updating no reference in the mutual capacitance mode if the touch exists, and updating the reference in the mutual capacitance mode if no touch exists.Type: ApplicationFiled: September 9, 2017Publication date: December 28, 2017Inventors: Lei DAI, Zhenyu ZHONG, Jinchun YE, Haolei WANG, Xiaoxiang CHEN
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Publication number: 20170364192Abstract: The present disclosure provide a method for detecting a force, including: acquiring a plurality of sample data of a first electronic device, where each of the plurality of sample data comprises a preset force and raw data of the first electronic device, the raw data of the first electronic device is obtained by detecting a deformation signal which is generated by applying the preset force on an input medium of the first electronic device; and determining a fitting function according to the plurality of sample data, where the fitting function denotes a corresponding relationship between a force applied to the first electronic device and detected raw data, and the fitting function is for allowing a second electronic device to determine a force corresponding to detected raw data when an input medium of the second electronic device is subjected to an acting force.Type: ApplicationFiled: September 3, 2017Publication date: December 21, 2017Inventors: Xintao GUI, Xiaoxiang CHEN, Xiang ZHONG
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Patent number: 9798428Abstract: The present invention relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as a multi-touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode, determining whether the touch state in the mutual capacitance mode is a single touch or the multi-touch, outputting one touch coordinate if the touch state is the single touch; and outputting a plurality of touch coordinates if the touch state is the multi-touch. The present invention also provides a touch detecting system and a touch terminal for the touch sensor.Type: GrantFiled: November 25, 2014Date of Patent: October 24, 2017Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Lei Dai, Zhenyu Zhong, Jinchun Ye, Haolei Wang, Xiaoxiang Chen
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Publication number: 20160209983Abstract: The present invention provides a method for communication between a touch control device and an external device, comprising the following steps: when an external device communicates with a touch screen, sending, by the external device, 1-bit data to the touch screen within each sending period, wherein the 1-bit data sent within each sending period is a combination of a valid signal and an invalid signal, or an invalid signal; scanning, by the touch screen, the bit data based on a predetermined scanning period to obtain N frames of scanned data, wherein the predetermined scanning period is 1/N of the sending period; obtaining a strength of an LCD interference signal according to one frame of data having a minimum signal strength among the N frames of scanned data; and reducing noise for the N frames of scanned data according to the strength of the LCD interference signal.Type: ApplicationFiled: March 30, 2016Publication date: July 21, 2016Inventors: XIAOXIANG CHEN, JUN FANG
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Patent number: D1009776Type: GrantFiled: August 4, 2023Date of Patent: January 2, 2024Inventor: Xiaoxiang Chen