Patents by Inventor Yingxuan Li
Yingxuan Li 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: 11625124Abstract: A touch controller is disclosed. The touch controller can include sense circuitry configured to sense, during a self-capacitance portion of a touch frame, first one or more self-capacitances associated with a first plurality of touch pixels on a touch sensor panel, and sense, during a mutual capacitance portion of the touch frame, first one or more mutual capacitances associated with the first plurality of touch pixels. A touch processor can be configured to, based on the first one or more self-capacitances and the first one or more mutual capacitances, sense a single touch event associated with the touch frame.Type: GrantFiled: July 6, 2020Date of Patent: April 11, 2023Assignee: Apple Inc.Inventors: Yingxuan Li, Marduke Yousefpor, Weijun Yao
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Patent number: 11579613Abstract: A method for positioning a robot at start-up includes: when the robot is started up, controlling the robot to rotate in a preset rotation direction in a start-up positioning region; determining position information about a rotation path of the positioning transmitting unit according to the preset rotation direction and a set of at least three different position distances, where the at least three different position distances are between the positioning transmitting unit and the two positioning receiving units disposed at the different fixed positions and are determined during a rotation process; using a direction extending from the center position of the rotation path to a position of the positioning transmitting unit when the robot stops rotation as orientation information of the robot; and using the center position of the rotation path and the orientation information of the robot as start-up positioning information of the robot.Type: GrantFiled: April 16, 2021Date of Patent: February 14, 2023Assignee: Keenon Robotics Co., Ltd.Inventors: Shuai Ma, Wenfei Zhao, Xue Bai, Yingxuan Li
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Patent number: 11561647Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.Type: GrantFiled: July 8, 2020Date of Patent: January 24, 2023Assignee: Apple Inc.Inventors: Yingxuan Li, Weijun Yao, Vivek Pant, Martin Paul Grunthaner, Marduke Yousefpor, Sumant Ranganathan
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Patent number: 11477003Abstract: Provided are a device synchronization method and apparatus, a device, and a storage medium. The device synchronization method includes: in response to determining that a second device does not receive a first data packet, determining a target time cycle for sending data packets by the second device based on a preset cycle adjustment parameter and a preset time slice length; determining whether the second device receives a second data packet sent by the first device based on the time slice length and the target time cycle of the second device; and in response to determining that the second device receives the second data packet sent by the first device, determining a time point for sending a data packet next time by the second device according to data packet information of the first device, achieving cycle synchronization of the second device in a preset synchronization cycle time period.Type: GrantFiled: February 25, 2021Date of Patent: October 18, 2022Assignee: Keenon Robotics Co., Ltd.Inventors: Yingxuan Li, Wei Xu, Yayun Yang
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Patent number: 11416086Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel are disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes can have projections which can interleave with projections of adjacent electrodes. In some configurations, projections of adjacent electrodes can be interleaved in one-dimension; in other configurations, projections of adjacent electrodes can be interleaved in two-dimensions. In some configurations, the width and length of one or more projections in an electrode can be selected based on a desired signal profile for that electrode.Type: GrantFiled: September 24, 2019Date of Patent: August 16, 2022Assignee: Apple Inc.Inventors: Kanke Gao, Wei Hsin Yao, Yingxuan Li, Weijun Yao
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Publication number: 20220069972Abstract: Provided are a device synchronization method and apparatus, a device, and a storage medium. The device synchronization method includes: in response to determining that a second device does not receive a first data packet, determining a target time cycle for sending data packets by the second device based on a preset cycle adjustment parameter and a preset time slice length; determining whether the second device receives a second data packet sent by the first device based on the time slice length and the target time cycle of the second device; and in response to determining that the second device receives the second data packet sent by the first device, determining a time point for sending a data packet next time by the second device according to data packet information of the first device, achieving cycle synchronization of the second device in a preset synchronization cycle time period.Type: ApplicationFiled: February 25, 2021Publication date: March 3, 2022Applicant: Keenon Robotics Co., Ltd.Inventors: Yingxuan LI, Wei XU, Yayun YANG
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Publication number: 20220026908Abstract: A method for positioning a robot at start-up includes: when the robot is started up, controlling the robot to rotate in a preset rotation direction in a start-up positioning region; determining position information about a rotation path of the positioning transmitting unit according to the preset rotation direction and a set of at least three different position distances, where the at least three different position distances are between the positioning transmitting unit and the two positioning receiving units disposed at the different fixed positions and are determined during a rotation process; using a direction extending from the center position of the rotation path to a position of the positioning transmitting unit when the robot stops rotation as orientation information of the robot; and using the center position of the rotation path and the orientation information of the robot as start-up positioning information of the robot.Type: ApplicationFiled: April 16, 2021Publication date: January 27, 2022Applicant: Keenon Robotics Co., Ltd.Inventors: Shuai MA, Wenfei Zhao, Xue Bai, Yingxuan Li
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Patent number: 11086444Abstract: A self-capacitive touch sensor panel configured to have a portion of both the touch and display functionality integrated into a common layer is provided. The touch sensor panel includes a layer with circuit elements that can switchably operate as both touch circuitry and display circuitry such that during a touch mode of the device the circuit elements operate as touch circuitry and during a display mode of the device the circuit elements operate as display circuitry. The touch mode and display mode can be time multiplexed. By integrating the touch hardware and display hardware into common layers, savings in power, weight and thickness of the device can be realized.Type: GrantFiled: November 15, 2018Date of Patent: August 10, 2021Assignee: Apple Inc.Inventors: Weijun Yao, Wei Hsin Yao, Yingxuan Li, Bingrui Yang, Marduke Yousefpor, Abbas Jamshidi-Roudbari, Ahmad Al-Dahle
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Patent number: 10936120Abstract: A self-capacitance touch screen. In some examples, the touch screen comprises a plurality of display pixels, a first display pixel of the plurality of display pixels including a first touch electrode of a plurality of touch electrodes, and a gate line coupled to the first display pixel, wherein the gate line is configured such that a voltage at the gate line substantially follows a voltage at the first touch electrode. In some examples, the gate line is coupled to a resistor, the resistor being configured to decouple the gate line from ground. In some examples, the gate line is coupled to an AC voltage source.Type: GrantFiled: May 22, 2014Date of Patent: March 2, 2021Assignee: Apple Inc.Inventors: Weijun Yao, Ahmad Al-Dahle, Hyunwoo Nho, Taif A. Syed, Wei Hsin Yao, Yingxuan Li
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Patent number: 10824279Abstract: A system is disclosed. The system can comprise drive circuitry included in a first component of the system, the drive circuitry configured to drive a first touch electrode on a touch sensor panel. The system can also comprise a driving line configured to couple an output of the drive circuitry to the first touch electrode. The system can also comprise a feedback line configured to couple the output of the drive circuitry to an input of the drive circuitry, wherein a first end of the feedback line is coupled to the input of the drive circuitry at the first component, and a second end of the feedback line is configured to be coupled to the output of the drive circuitry at a second component, different from the first component, of the system.Type: GrantFiled: September 29, 2015Date of Patent: November 3, 2020Assignee: Apple Inc.Inventors: Chaohao Wang, Yingxuan Li, Hung Sheng Lin, Paolo Sacchetto, Szu-Hsien Lee, Weijun Yao, Howard Tang
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Publication number: 20200341585Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.Type: ApplicationFiled: July 8, 2020Publication date: October 29, 2020Inventors: Yingxuan LI, Weijun YAO, Vivek PANT, Martin Paul GRUNTHANER, Marduke YOUSEFPOR, Sumant RANGANATHAN
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Publication number: 20200333902Abstract: A touch controller is disclosed. The touch controller can include sense circuitry configured to sense, during a self-capacitance portion of a touch frame, first one or more self-capacitances associated with a first plurality of touch pixels on a touch sensor panel, and sense, during a mutual capacitance portion of the touch frame, first one or more mutual capacitances associated with the first plurality of touch pixels. A touch processor can be configured to, based on the first one or more self-capacitances and the first one or more mutual capacitances, sense a single touch event associated with the touch frame.Type: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Inventors: Yingxuan LI, Marduke YOUSEFPOR, Weijun YAO
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Patent number: 10712867Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.Type: GrantFiled: October 27, 2015Date of Patent: July 14, 2020Assignee: Apple Inc.Inventors: Yingxuan Li, Weijun Yao, Vivek Pant, Martin Paul Grunthaner, Marduke Yousefpor, Sumant Ranganathan
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Patent number: 10705658Abstract: A touch controller is disclosed. The touch controller can include sense circuitry configured to sense, during a self-capacitance portion of a touch frame, first one or more self-capacitances associated with a first plurality of touch pixels on a touch sensor panel, and sense, during a mutual capacitance portion of the touch frame, first one or more mutual capacitances associated with the first plurality of touch pixels. A touch processor can be configured to, based on the first one or more self-capacitances and the first one or more mutual capacitances, sense a single touch event associated with the touch frame.Type: GrantFiled: September 22, 2014Date of Patent: July 7, 2020Assignee: Apple Inc.Inventors: Yingxuan Li, Marduke Yousefpor, Weijun Yao
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Patent number: 10691235Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on a separate layer dedicated to only touch hardware.Type: GrantFiled: April 18, 2014Date of Patent: June 23, 2020Assignee: Apple Inc.Inventors: Weijun Yao, Wei Hsin Yao, Yingxuan Li, Hopil Bae, Ahmad Al-Dahle
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Publication number: 20200019275Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel are disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes can have projections which can interleave with projections of adjacent electrodes. In some configurations, projections of adjacent electrodes can be interleaved in one-dimension; in other configurations, projections of adjacent electrodes can be interleaved in two-dimensions. In some configurations, the width and length of one or more projections in an electrode can be selected based on a desired signal profile for that electrode.Type: ApplicationFiled: September 24, 2019Publication date: January 16, 2020Inventors: Kanke GAO, Wei Hsin YAO, Yingxuan LI, Weijun YAO
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Patent number: 10437385Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel are disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes can have projections which can interleave with projections of adjacent electrodes. In some configurations, projections of adjacent electrodes can be interleaved in one-dimension; in other configurations, projections of adjacent electrodes can be interleaved in two-dimensions. In some configurations, the width and length of one or more projections in an electrode can be selected based on a desired signal profile for that electrode.Type: GrantFiled: April 8, 2016Date of Patent: October 8, 2019Assignee: Apple Inc.Inventors: Kanke Gao, Wei Hsin Yao, Yingxuan Li, Weijun Yao
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Patent number: 10277119Abstract: A charge pump that can be configured to operate in a first mode and a second mode is disclosed. The charge pump can comprise a charging capacitor coupled to a first node and configured to transfer a first DC voltage to the first node. The charge pump can also comprise a first output node and a second output node coupled to the first node. During the first mode, the first output node can be configured to output a second DC voltage based on the first DC voltage, and the second output node can be configured to output a third DC voltage based on the first DC voltage. During the second mode, the first output node can be configured to output the second DC voltage, and the second output node can be configured to output an AC voltage, the AC voltage being offset by the third DC voltage.Type: GrantFiled: October 30, 2017Date of Patent: April 30, 2019Assignee: Apple Inc.Inventors: Weijun Yao, David A. Stronks, Hopil Bae, Kingsuk Brahma, Wei Hsin Yao, Yafei Bi, Yingxuan Li
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Publication number: 20190087051Abstract: A self-capacitive touch sensor panel configured to have a portion of both the touch and display functionality integrated into a common layer is provided. The touch sensor panel includes a layer with circuit elements that can switchably operate as both touch circuitry and display circuitry such that during a touch mode of the device the circuit elements operate as touch circuitry and during a display mode of the device the circuit elements operate as display circuitry. The touch mode and display mode can be time multiplexed. By integrating the touch hardware and display hardware into common layers, savings in power, weight and thickness of the device can be realized.Type: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Inventors: Weijun YAO, Wei Hsin YAO, Yingxuan LI, Bingrui YANG, Marduke YOUSEFPOR, Abbas JAMSHIDI-ROUDBARI, Ahmad AL-DAHLE
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Patent number: 10209813Abstract: A self-capacitive touch sensor panel configured to have a portion of both the touch and display functionality integrated into a common layer is provided. The touch sensor panel includes a layer with circuit elements that can switchably operate as both touch circuitry and display circuitry such that during a touch mode of the device the circuit elements operate as touch circuitry and during a display mode of the device the circuit elements operate as display circuitry. The touch mode and display mode can be time multiplexed. By integrating the touch hardware and display hardware into common layers, savings in power, weight and thickness of the device can be realized.Type: GrantFiled: September 30, 2014Date of Patent: February 19, 2019Assignee: APPLE INC.Inventors: Weijun Yao, Wei Hsin Yao, Yingxuan Li, Bingrui Yang, Marduke Yousefpor, Abbas Jamshidi-Roudbari, Ahmad Al-Dahle