Capacitive Patents (Class 178/18.06)
  • Patent number: 11900718
    Abstract: A sensing circuit has a plurality of sensing units and a plurality of sensing electrodes. The sensing electrodes are divided into a first group and a second group. The sensing electrodes of the first group are electrically connected to a portion of the sensing units, and the sensing electrodes of the second group are electrically connected to another portion of the sensing units. A first sensing signal is provided to the sensing electrodes of the first group in a first time period, and a second sensing signal is provided to the sensing electrodes of the second group in a second time period. The first time period and the second time period start at different times and are not overlapped with each other.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: February 13, 2024
    Assignee: InnoLux Corporation
    Inventors: Chandra Lius, Kuan-Feng Lee
  • Patent number: 11889252
    Abstract: A microphone device, an interface circuit and method are provided for managing a potential difference in sensitivity to a detected environmental stimulus associated with a sensor arrangement, where multiple electrical signals forming a differential signal can be produced, and the multiple electrical signals can be better balanced. Such an interface circuit, which can be used within a microphone device includes a bias voltage generator having one or more bias output voltage terminals, where a respective one of one or more DC bias voltages is produced at each of the bias output voltage terminals, for being coupled to a pair of transduction elements of a sensor. The interface circuit further includes an amplifier circuit having a first input terminal coupled to a first one of the pair of output terminals of the sensor and having a second input terminal coupled to a second one of the pair of output terminals of the sensor, the amplifier circuit producing a differential output signal.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: January 30, 2024
    Assignee: Knowles Electronics, LLC
    Inventors: Mark Niederberger, Thomas Gautschi, Michael Kuntzman, Mohsin Nawaz, Mohammad Shajaan, Christian Lillelund
  • Patent number: 11861112
    Abstract: A touch sensor panel according to an exemplary embodiment of the present invention is a touch sensor panel in which a plurality of driving electrodes and a plurality of receiving electrodes are arranged on the same layer, in which the plurality of receiving electrodes is arranged along a plurality of rows and columns, the plurality of driving electrodes is arranged such that at least one driving electrode is disposed at each of both sides with respect to each receiving electrode, and the driving electrode arranged at the left side and the driving electrode arranged at the right side with the receiving electrode interposed therebetween are electrically connected with each other.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: January 2, 2024
    Inventors: Seyeob Kim, Bonkee Kim, Jongsik Kim
  • Patent number: 11847287
    Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: December 19, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takayuki Nakanishi, Koji Noguchi, Koji Ishizaki, Yasuyuki Teranishi, Takeya Takeuchi
  • Patent number: 11842011
    Abstract: A touch screen or touch sensor panel can detect touches by conductive objects (e.g., fingers) and an active stylus and can mitigate noise in the sensed stylus signal from multiple noise sources. In some examples, the touch sensor panel includes a plurality of touch electrodes that can be used to sense touch data indicative of a proximate conductive object and to sense stylus data. The stylus data can include noise from one or more sources, for example. In some examples, the electronic device uses the touch data to determine a characteristic of one of the sources of noise and the stylus data to determine another characteristic of the source of noise and one or more characteristics of another source of noise. After modeling the noise, the electronic device can remove the noise from the stylus data to improve the accuracy of the stylus scan.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: December 12, 2023
    Assignee: Apple Inc.
    Inventors: Yonathan Morin, Apexit Shah
  • Patent number: 11781833
    Abstract: Switchless sensing is provided to control electronic devices of the type associated with deterrent devices.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 10, 2023
    Assignees: Crosman Corporation
    Inventors: Jeffrey W. Mock, John A. Kowalczyk, Jr., Eric St. Phillips, Christopher A. Gagliano, Michael W. Allen, Robert J. MacBlane
  • Patent number: 11775100
    Abstract: A method for configuring a touch sensor system is provided. The method may be performed automatically by a controller of the system. The system comprises a touch panel operatively coupled to the controller, where the touch panel comprises a plurality of transmit electrodes and a plurality of receive electrodes. The method comprises selectively and individually driving, by the controller, at least one of the transmit electrodes. For each driven transmit electrode, signal outputs from one or more of the receive electrodes are received while the transmit electrode is driven. One or more characteristics of the touch panel is determined as a function of the signal outputs from the receive electrodes. At least one operation setting of the controller is configured based on the one or more characteristics. The one or more characteristics of the touch panel may include a number of transmit electrodes and a number of receive electrodes.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: October 3, 2023
    Assignee: ONTARIO INC.
    Inventors: Robert Donald McCulloch, Albert M. David, Guy Michael Amyon Farquharson Duxbury
  • Patent number: 11762516
    Abstract: A display device is provided. A display device includes a display unit, and a touch sensing unit disposed on the display unit, wherein the touch sensing unit includes a substrate, a first sensing electrode disposed on the substrate, wherein the first sensing electrode includes a plurality of touch conductive patterns separated from each other, a second sensing electrode disposed on the same layer as the first sensing electrode and insulated from the first sensing electrode, and a connection electrode electrically connecting the touch conductive patterns to each other, wherein the connection electrode includes a first connection electrode overlapping the second sensing electrode and a second connection electrode not overlapping the second sensing electrode.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: September 19, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Jin Yang, Hwan Hee Jeong, Young Hyun Kim, Ma Eum Cho
  • Patent number: 11755166
    Abstract: A sensing apparatus comprising: a displacement sensor comprising capacitance measurement circuitry configured to provide a displacement sensor output signal indicative of a separation between a frame element and a displacement element movably mounted with respect to the frame element; a touch sensor comprising measurement circuitry configured to provide a touch sensor output signal indicative of when an object is determined to be touching the displacement element; and a processing element configured to output a displacement detection signal to indicate there is determined to be a displacement of the displacement element relative to the frame element in response to determining the touch sensor output signal indicates an object is touching the displacement element and a difference between the displacement sensor output signal and a baseline displacement sensor output signal exceeds a threshold value, wherein the baseline displacement sensor output signal is determined from the displacement sensor output signal
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 12, 2023
    Assignee: TouchNetix Limited
    Inventors: Peter Timothy Sleeman, Robert Money
  • Patent number: 11698697
    Abstract: A capacitive sensor with a plurality of sense inputs connectable to capacitive sense electrodes and a common reference input, each sense input and the reference input can be put in a measure state, in a ground state, or in a shield state. The sensor can be equipped with external reference capacitors between each of the sense input and the common reference terminal. The reference capacitor can be read individually by selectively pulling one of the input terminals to ground and driving the other to be equipotential with the reference input.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: July 11, 2023
    Assignee: Semtech Corporation
    Inventors: Chaouki Rouaissia, Pascal Monney
  • Patent number: 11687202
    Abstract: A driving circuit includes at least one light-emitting element, a drive line, a data line, a touch sensor, and a read line. The drive line is electrically coupled to a first terminal of the at least one light-emitting element. The data line is electrically coupled to a second terminal of the at least one light-emitting element. The drive line is electrically coupled to a first terminal of the touch sensor. The read line is electrically coupled to a second terminal of the touch sensor. The read line is electrically isolated from the data line.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: June 27, 2023
    Assignee: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Ming-Chuan Lin, Wen-Hung Wang, Chuan-Chih Fu
  • Patent number: 11609664
    Abstract: A capacitance detection circuit is provided, which includes a capacitance control module, a charge conversion module and a filter module connected with each other. The capacitance control module controls a capacitor to be charged/discharged for multiple times and generates a digital voltage signal according to an amount of received charges. The capacitor releases all stored charges after being charged to a preset voltage during each charge/discharge. In response to the digital voltage signal being at a high level, the charge conversion module outputs negative charges with a preset charge amount to the capacitance control module. The preset charge amount is greater than or equal to an amount of the stored charges when the capacitor is charged to the preset voltage. The filter module obtains a value representing a capacitance of the capacitor according to the digital voltage signal.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: March 21, 2023
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventor: Hong Jiang
  • Patent number: 11609609
    Abstract: A pressure sensor, includes: a first substrate; a pressure sensing layer on one surface of the first substrate; and a driving electrode and a sensing electrode on the pressure sensing layer and spaced apart from each other, wherein the driving electrode and the sensing electrode are on a same layer, and each of the driving electrode and the sensing electrode is directly on the pressure sensing layer.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: March 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: So Hee Park, Won Ki Hong, Hee Seomoon, Hyeon Jun Lee
  • Patent number: 11573677
    Abstract: A light emitting user input device can include a touch sensitive portion configured to accept user input (e.g., from a user's thumb) and a light emitting portion configured to output a light pattern. The light pattern can be used to assist the user in interacting with the user input device. Examples include emulating a multi-degree-of-freedom controller, indicating scrolling or swiping actions, indicating presence of objects nearby the device, indicating receipt of notifications, assisting pairing the user input device with another device, or assisting calibrating the user input device. The light emitting user input device can be used to provide user input to a wearable device, such as, e.g., a head mounted display device.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: February 7, 2023
    Assignee: Magic Leap, Inc.
    Inventors: James M. Powderly, Savannah Niles, Christopher David Nesladek, Isioma Osagbemwenorue Azu, Marshal Ainsworth Fontaine, Haney Awad, William Wheeler, Brian David Schwab, Brian Edward Oliver Bucknor
  • Patent number: 11561656
    Abstract: A display apparatus including: a display panel including a base member; a first touch electrode disposed on the base member and extending in a first direction; a second touch electrode including touch patterns spaced apart from one another in a second direction crossing the first direction and a bridge pattern connecting two of the touch patterns adjacent to each other in the second direction, the touch patterns being disposed on the base member and spaced apart from the first touch electrode; and a dummy pattern disposed between the first touch electrode and the second touch electrode. The first touch electrode includes a first mesh pattern and first peripheral patterns protruding from the first mesh pattern, and a peripheral border of the first peripheral patterns has an obtuse angle or a curved shape.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: January 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sunhaeng Cho, Jiwon Han, Ki-Hyun Cho
  • Patent number: 11499844
    Abstract: A proximity sensor having improved environmental compensation performance and an environmental compensation method in the proximity sensor are disclosed. The environmental compensation method and the proximity sensor advantageously reduce processing time, algorithm operation time, and power consumption by previously setting sensing values before sensing of sensors unlike a typical method in which compensation is carried out by multiplying factors obtained through software. Further, the environmental compensation method and the proximity sensor have an advantage of accurate compensation not only for linearly varying environmental factors but also non-linearly varying environmental factors.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: November 15, 2022
    Assignee: ABOV Semiconductor Co., Ltd.
    Inventors: Young Jin Seo, Seo Han Lee, Jeong Hwan Seo
  • Patent number: 11416086
    Abstract: 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: Grant
    Filed: September 24, 2019
    Date of Patent: August 16, 2022
    Assignee: Apple Inc.
    Inventors: Kanke Gao, Wei Hsin Yao, Yingxuan Li, Weijun Yao
  • Patent number: 11392231
    Abstract: A sensing unit includes a base layer having a sensing area, the sensing area including a first sensing area, a second sensing area protruding from the first sensing area in a first direction, and a third sensing area protruding from the first sensing area in the first direction, and a non-sensing area adjacent to the sensing area; sensing patterns including a normal sensing pattern in the first sensing area, a first notch sensing pattern in the second sensing area, and a second notch sensing pattern in the third sensing area; a sensing line in the non-sensing area; a connection line in the non-sensing area and between the sensing line and the normal sensing pattern in a plane view to electrically connect the first notch sensing pattern and the second notch sensing pattern; and a connection part electrically connecting the sensing line and the normal sensing pattern.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: July 19, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeyun Han, Wonkyu Kwak, Hwan-hee Jeong
  • Patent number: 11353980
    Abstract: An apparatus for processing signals from a touch panel. The touch panel includes a layer of piezoelectric material disposed between a number of sensing electrodes and one or more common electrodes. The apparatus includes a capacitive touch controller for connection to the sensing electrodes and a switch network including inputs for connection to the sensing electrodes and an output connected to system ground or a common mode voltage. The apparatus includes a circuit for connection to the common electrodes and to generate, for each common electrode, a corresponding pressure signal indicative of a pressure applied to the touch panel proximate to that common electrode. The apparatus includes a controller to control the switch network to couple any connected sensing electrodes to system ground or the common mode voltage during a pressure measurement period, and to sample the one or more second pressure signals during the pressure measurement period.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 7, 2022
    Assignee: Cambridge Touch Technologies Ltd.
    Inventors: Michael Astley, Babak Bastani, Riccardo Micci, Arokia Nathan, Paul Routley, Xiang Cheng, Jiahao Li
  • Patent number: 11353988
    Abstract: A touch display apparatus is disclosed, which includes a touch display panel and a driving circuit. The touch display panel is configured for display and touch sensing, which includes plural touch sensing pads arranged in touch sensing groups. The driving circuit is coupled to the touch display panel, and is configured to drive the touch display panel to perform display with respect to common voltage signal at a display stage of a frame period and to drive the touch display panel to perform touch sensing by applying a touch detection signal to all of the touch sensing pads simultaneously at a touch sensing stage of the frame period.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: June 7, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chin-Yuan Chiang, Ho-Chia Hung, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 11348282
    Abstract: A camera of a vehicle has a field of view. A perception module of the vehicle is configured to determine a location of an object relative to the vehicle based on a model for the camera and a camera ground truth orientation of the camera. A calibration module is configured to: wirelessly receive images from the camera; determine a vehicle camera target based on the images; when the vehicle camera target is aligned with a calibration module target on the calibration module, determine a present orientation of the calibration module measured using a gyroscope of the calibration module; when at least one component of the present orientation of the calibration module is different than the at least one component of an expected orientation of the calibration module, determine an updated camera ground truth orientation of the camera; and wirelessly transmit the updated ground truth orientation to the vehicle.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: May 31, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrew W. Averhart, Ismail Hamieh, Mohsen Khalili, Yousef A. Omar
  • Patent number: 11347332
    Abstract: A position indicator includes a pen-shaped body; control circuitry housed in the pen-shaped body and configured to generate position detection signals and generate additional information about the position indicator; a first receiver; a second receiver different from the first receiver; a first transmitter provided near a distal end of the pen-shaped body and configured to transmit the position detection signals to a sensor of a position detection system; and a second transmitter, which is different from the first transmitter and configured to transmit wireless signals to the position detection system. The control circuitry, in response to a control signal from the position detection system received by the first receiver or the second receiver, controls transmission of the position detection signals and transmission of the additional information via a transmitter selected from the first transmitter and the second transmitter, to the position detection system.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: May 31, 2022
    Assignee: Wacom Co., Ltd.
    Inventor: Sadao Yamamoto
  • Patent number: 11314354
    Abstract: A touch driving method and device, an operation mode switching method, a touch devices, and an electronic device are provided, the method includes: controlling a driver module to output a first touch detection signal; controlling a selector module to simultaneously transmit the first touch detection signal outputted by the driver module corresponding to the selector module to n touch electrodes connected to the selector module; detecting whether there is touch input and, when there is the touch input, controlling the driver module to output a second touch detection signal; and controlling the selector module to successively transmit the second touch detection signal outputted by the driver module corresponding to the selector module to the n touch electrodes connected to the selector module.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: April 26, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao Han, Wei Sun, Lingyun Shi, Dong Chen
  • Patent number: 11294503
    Abstract: An image jaggedness filter is disclosed that can be used to detect the presence of ungrounded objects such as water droplets or coins, and delay periodic baseline adjustments until these objects are no longer present. To do otherwise could produce inaccurate normalized baseline sensor output values. The application of a global baseline offset is also disclosed to quickly modify the sensor offset values to account for conditions such as rapid temperature changes. Background pixels not part of any touch regions can be used to detect changes to no-touch sensor output values and globally modify the sensor offset values accordingly. The use of motion dominance ratios and axis domination confidence values is also disclosed to improve the accuracy of locking onto dominant motion components as part of gesture recognition.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: April 5, 2022
    Assignee: Apple Inc.
    Inventor: Wayne Carl Westerman
  • Patent number: 11269451
    Abstract: The present disclosure discloses a touch panel, a driving method thereof and a display device. A touch signal multiplexer is adopted to load touch signals to touch signal lines, and one pad is at least correspondingly electrically connected with two touch signal lines; in addition, a load compensation circuit is set; and while the pad loads the touch signals to one of the touch signal lines electrically connected with the pad, the load compensation circuit loads compensation signals to other touch signal lines electrically connected with the pad without the loaded touch signals.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 8, 2022
    Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhixiang Fang, Liangliang Zheng, Guanglei Yang, Xuxu Hu, Peng Ding, Meng Wang
  • Patent number: 11256368
    Abstract: A touch compensation method includes: for at least one line, estimating coordinates of a point to be compensated at a current moment according to coordinates of n touch recognition points at n previous moments, and n being an integer greater than or equal to 2; calculating compensation data of a touch model corresponding to the point to be compensated according to first touch data of a touch model corresponding to a touch recognition point of a previous 1st moment T1; obtaining all touch data of a touch screen at the current moment, and obtaining second touch data at the current moment at a place where the touch model corresponding to the point to be compensated is located from the all touch data according to the coordinates of the point to be compensated; and compensating the second touch data according to the compensation data.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: February 22, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yufei Hu, Yifei Zhan, Youshan Hou, Feng Yang, Cheng Chen
  • Patent number: 11255890
    Abstract: One embodiment includes and I/O bus including a signal line coupled to a signal source and multiple line switches, each line switch to couple a corresponding I/O port to the signal line. Switch logic coupled to the I/O bus may programmatically switch the multiple line switches to couple at least one of the signal source and measurement circuitry to the respective I/O port.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 22, 2022
    Assignee: Cypress Semiconductor Corporation
    Inventor: Dennis R. Seguine
  • Patent number: 11249587
    Abstract: A touch panel includes a first electrode layer and a second electrode layer. The first electrode layer has transmitting electrodes arranged in transmitting channels and traces respectively coupled to the transmitting channels. The second electrode layer has receiving electrodes arranged in receiving channels. At least one of the traces, the transmitting channels and one of the receiving channels in proximity of the traces form touch detection blocks that respectively correspond to the transmitting channels. For each touch detection block, in a circle area overlapped with at least one of the traces and substantially in the touch detection block corresponding to one of the transmitting channels, a summation of areas of the corresponded transmitting channel and the trace coupled to the corresponded transmitting channel is substantially larger than a summation of areas of the other transmitting channels and the other traces.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: February 15, 2022
    Assignee: Himax Technologies Limited
    Inventors: Cheng-Hung Tsai, Chin-Yuan Chiang, Wai-Pan Wu, Shen-Feng Tai
  • Patent number: 11237687
    Abstract: The present disclosure includes systems and methods for touch sensing. An electronic device includes a resistive sheet that is optically transmissive, a number of electrodes electrically coupled to the resistive sheet, the electrodes disposed at an edge of the resistive sheet and spaced apart at predetermined intervals, and a processor coupled to the number of electrodes. The processor is configured to generate, at a first of the electrodes, a first drive signal, generate, at a second of the electrodes, a second drive signal, each drive signal having a different frequency, measure an output of at least one of the electrodes, and determine, based on the output, a location of a touch input on the resistive sheet.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mohammad Abu Saude, Sergio Perdices-Gonzalez, Santiago Ortega-Avila, Pedro Martinez-Lopez, Sajid Sadi, Ernest Rehmatulla Post
  • Patent number: 11204655
    Abstract: A method includes detecting presence of a handheld device in proximity of a touch enabled device and negotiating communication capabilities between the handheld device and a digitizer system of the touch enabled device. At least one of the handheld device and the digitizer system is configured to match a defined communication capability of the other of the at least one of the handheld device and digitizer system. Input from the handheld device is tracked via an electrostatic communication channel between the handheld device and the digitizer system based on the defined communication configuration.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: December 21, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Arie Gur, Amir Zyskind, Ilan Geller
  • Patent number: 11175783
    Abstract: Disclosed herein is a touch panel including: a sensor substrate and a cover substrate stuck to each other. The sensor substrate includes a sensor electrode, and plural signal wirings electrically connected to the sensor electrode and extending along a periphery of the sensor electrode. The cover substrate includes one or plural conductive layers extending along the periphery of the sensor electrode and the plural signal wirings within an area not facing the sensor electrode and the plural signal wirings.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: November 16, 2021
    Assignee: Japan Display Inc.
    Inventors: Takeshi Kurashima, Shoji Hinata
  • Patent number: 11137858
    Abstract: Location-based swing compensation for touch sensor panels can improve touch sensing performance. Due to differences in impedance characteristics of touch nodes at different locations in a touch sensor panel (due to differences in routing to touch nodes and due to differences in impedance with respect to ground (loading effects) of touch nodes), touch nodes can have non-uniform bandwidth characteristics which can manifest as non-uniform signal and signal-to-noise ratio (SNR) across the touch sensor panel. Additionally, the non-uniform signal can reduce the effectiveness of bootstrapping. Swing compensated stimulation signals can be applied to various touch nodes based on location and/or impedance characteristics of the various touch nodes. For example, the stimulation voltage can be increased for touch nodes with longer and/or thinner routing traces so that the signal at the touch node can be uniform with other touch nodes whose routing may be shorter and/or thicker.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: October 5, 2021
    Assignee: Apple Inc.
    Inventors: Albert Lin, Shwetabh Verma, Sumant Ranganathan
  • Patent number: 11126309
    Abstract: A touch input device configured to operate a system of a motor vehicle includes a cover plate composed of a cover plate material having a plate top side and a plate underside, and also includes a touch sensor surface. The plate top side includes an operating surface, where the plate underside of the cover plate faces the touch sensor surface. The plate underside has at least one beveled surface arranged obliquely with respect to the touch sensor surface such that a clearance is formed between the plate underside and the touch sensor surface. The operating surface at least partly projects beyond the clearance and a filling body composed of at least one filling material is arranged in the clearance, where the filling material has a permittivity for electric fields that corresponds to a permittivity of the cover plate material.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: September 21, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Daniel Wiedemann, Matthias Lindner, Gabriel Hairer
  • Patent number: 11126308
    Abstract: The disclosure provides an integrator, a touch display device, and a driving method therefor which can perform amplification and integration functions together.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: September 21, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HongJu Lee, HyeongWon Kang
  • Patent number: 11068049
    Abstract: Light guide display and field of view techniques are described. In one or more implementations, an apparatus includes one or more modules implemented at least partially in hardware to configure a user interface and a display device communicatively coupled to the one or more modules to output the user interface to be viewable by a user within a range of distances from the display device such that closer distances within the range permit the user to have an increased field of view in comparison with distances within the range that are further away from the user.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: July 20, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: William J. Westerinen, Steven John Robbins, Rajeev Badyal, Rod G. Fleck
  • Patent number: 11068084
    Abstract: An input device includes a rotary part having an opening, a pressing member configured to transmit light through a first region, a rotary electrode part including a first electrode element, a holding electrode part including a second electrode element that is configured to be brought into contact with and separated from the first electrode element by rotation of the rotary electrode part, a first detection electrode part disposed so as to face the holding electrode part, and a substrate in which the first detection electrode part is disposed. The substrate and the pressing member transmit light through the first region.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: July 20, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Satoshi Yoshihara
  • Patent number: 11054936
    Abstract: This relates to a touch sensor panel including: a substrate having a first surface and a second surface; a first touch node formed by a first drive line and a first section of a first sense line both routed on the first surface of the substrate; and a second touch node formed by a second drive line routed on the first surface of the substrate and a second section of the first sense line routed on the second surface of the substrate.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: July 6, 2021
    Assignee: Apple Inc.
    Inventors: Morakinyo J. Aina, Amit Nayyar, Sean E. O'Connor, Peter Csaszar
  • Patent number: 11043543
    Abstract: A thin touch panel is provided. A touch panel with a simple structure is provided. The number of components of a touch panel is reduced. Each of a pair of wirings of a touch sensor is positioned closer to a substrate supporting light-emitting elements than a common electrode is, and includes a portion positioned between two adjacent pixel electrodes in a plan view. Furthermore, an island-like structure body with an inverse tapered shape is provided over each of the pair of wirings. A conductive layer in an electrically floating state is provided over the structure body. Each conductive layer has a portion overlapping with one of the pair of wirings. Moreover, the conductive layer and the common electrode are formed using the same conductive film.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: June 22, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kensuke Yoshizumi, Hideaki Shishido, Kazunori Watanabe
  • Patent number: 11023086
    Abstract: A mobile terminal including a first body; a second body arranged side by side with the first body in a first direction; a hinge unit connecting the first body and the second body and configured to vary an angle defined by the first body and the second body; a flexible display unit including a first area provided in one surface of the first body, a second area provided in one surface of the second body, and a third area provided in an area corresponding to the hinge unit; and a touch sensor in the flexible display unit.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 1, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Yunsuk Jung, Seounghwan Seol, Hangyu Oh
  • Patent number: 11016623
    Abstract: A touch sensor panel may be provided that includes a plurality of drive electrodes formed in a first layer; and a plurality of receiving electrodes which are arranged to cross the plurality of drive electrodes and are formed in a second layer. In the plurality of drive electrodes, a column of drive electrodes is formed by connecting a plurality of lozenge-shaped unit electrodes in a column direction, and the drive electrodes of each column are disposed at a regular interval in a row direction. The plurality of receiving electrodes are composed of a line having a predetermined width and are arranged in the row direction in such a way as to pass through a center of the unit electrode. Through this, the touch sensor panel capable of linearly detecting the change of the capacitance is provided, so that touch position can be accurately detected.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: May 25, 2021
    Inventor: Jongsik Kim
  • Patent number: 10996801
    Abstract: Disclosed is a capacitive touch detecting device including a sampler circuit and a detection-and-calibration circuit. The sampler circuit executes the following steps: charging a capacitor when the level of a clock signal is high, wherein the capacitor's capacitance is a first capacitance provided a touch event occurs and is a second capacitance provided the touch event doesn't occur, the first capacitance is greater than the second capacitance and related to a parasitic capacitance and a touch capacitance, and the second capacitance is unrelated to the touch capacitance; sampling a voltage determined by the capacitor during the level transition of the clock signal to generate a sample value; and discharging the capacitor when the level of the clock signal is low. The detection-and-calibration circuit determines whether the touch event occurs and whether at least one parameter needs to be updated according to the sample value and at least one parameter.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: May 4, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Huye Fu, Jian Dong, Zuohui Peng, Yuxiang Qi, Fengqiao Ye
  • Patent number: 10996789
    Abstract: A touch display panel is provided. The touch display panel includes: a display panel, a touch glass, and a touch controller. The display panel includes sensing lines and identification pins. The touch controller obtains first product information of the touch glass. The touch controller and the display panel respectively report the first product information of the touch glass and second product information of the display panel to a host. The host retrieves firmware and a default noise offset value corresponding to the touch display panel according to the first product information and the second product information, and writes the firmware and default noise offset value to a non-volatile memory of the touch display panel. The touch controller executes the firmware, and determines touch actions performed on the touch glass according to the default noise offset value.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: May 4, 2021
    Assignee: QUANTA COMPUTER INC.
    Inventor: Hsin-Liang Lin
  • Patent number: 10983617
    Abstract: A touch sensing unit includes a base layer having defined thereon a first sensing area, a second sensing area, and a third sensing area. The second and third sensing areas protrude from the first sensing area in a first direction and are spaced apart from each other. A non-sensing area is adjacent to the first, second, and third sensing areas. A first detection electrode is disposed within the first sensing area. A second detection electrode is disposed within the second sensing area. A third detection electrode is disposed within the third sensing area. First, second, and third signal wires are electrically connected to the first, second, and third detection electrodes, respectively. The first and second signal wires are disposed adjacent to a first edge of the non-sensing area. The third signal wire is disposed adjacent to a second edge of the non-sensing area.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Jin Moon, In Young Han
  • Patent number: 10978784
    Abstract: An electronic apparatus and an information processing method are provided. The apparatus includes a main body, a first electronic component and a second electronic component, having a common function and disposed at different positions in relation to the main body, and a controller, disposed in relation to the main body. The controller is connected to the first electronic component through a first connection wire and the controller is also connected to the second electronic component through a second connection wire. The first connection wire has a length longer than the second connection wire. The apparatus further includes a reference wire, connected to the controller, in order to provide reference data corresponding to the first connection wire to the controller. The controller is configured to adjust detection data received from the first electronic component via the first connection wire, based on the reference data of the reference wire.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: April 13, 2021
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventors: Qian Zhao, Heng Liu
  • Patent number: 10976859
    Abstract: A touch screen including a plurality of first sensing electrode columns having a plurality of first sensing electrodes, the plurality of first sensing electrode columns extending in one direction, and a plurality of second sensing electrode columns alternately disposed with the first sensing electrode columns, the plurality of second sensing electrode columns including a plurality of second sensing electrodes having a plurality of sub-electrodes. Sub-electrodes of one of adjacent second sensing electrodes are electrically connected to sub-electrodes of another of the adjacent second sensing electrodes. At least some of the first sensing electrodes include a first region and a second region electrically separated from the first region.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Jae Na, Gwang Bum Ko, Hyoung Wook Jang, Ye Ri Jeong, Jeong Yun Han
  • Patent number: 10963084
    Abstract: A touch sensor includes sensing blocks. Each of the sensing blocks includes first sensing cells of a first group, first sensing cells of a second group, and second sensing cells. The first sensing cells of the first group are arranged in a first direction, spaced apart from each other with first separation areas therebetween, and coupled to an identical first electrical node. The first sensing cells of the second group are arranged in the first direction, spaced apart from each other with second separation areas therebetween, and coupled to an identical second electrical node. The second sensing cells respectively extend in a second direction in the first separation areas and the second separation areas. First sensing cells at borders of respective sensing blocks adjacent in the first direction are coupled to different electrical nodes.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Gwang Bum Ko
  • Patent number: 10955926
    Abstract: A method, system, apparatus, and/or device that may include a sensor configured to obtain position information of at least a portion of a hand in a space relative to a first axis and a second axis. The method, system, apparatus, and/or device may include a processing device configured to: determine that fingers and a thumb of the hand are located within the defined area based on the position information; determine a first position of the fingers and a second position of the thumb based on the position information; in response to the fingers being in a clenched position, generate hand position information that only includes position information of the thumb; and in response to the position information of the thumb indicated the thumb is extended and oriented in a first direction along a first axis or a second axis, execute a first instruction.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 23, 2021
    Assignee: Atheer, Inc.
    Inventors: Ganesh Salvi, Neeraj Kulkarni, Yu-Hsiang Chen
  • Patent number: 10936128
    Abstract: The sensor device includes a first conductive layer, a second conductive layer, an electrode substrate, a first support, and a second support. The first conductive layer is formed to be deformable sheet-shaped. The second conductive layer is disposed to be opposed to the first conductive layer. The electrode substrate includes multiple first electrode wires and multiple second electrode wires and is disposed to be deformable between the first conductive layer and the second conductive layer, the multiple second electrode wires being disposed to be opposed to the multiple first electrode wires and intersecting with the multiple first electrode wires. The first support includes multiple first structures, the multiple first structures connecting the first conductive layer and the electrode substrate. The second support includes multiple second structures, the multiple second structures connecting the second conductive layer and the electrode substrate.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: March 2, 2021
    Assignee: Sony Corporation
    Inventors: Hiroto Kawaguchi, Shogo Shinkai, Kei Tsukamoto, Tomoko Katsuhara, Hayato Hasegawa, Fumihiko Iida, Takayuki Tanaka, Tomoaki Suzuki, Taizo Nishimura, Hiroshi Mizuno, Yasuyuki Abe
  • Patent number: 10908719
    Abstract: Disclosed are a touch display device, a touch driving circuit, and a touch driving method. A touch display device, a touch driving circuit, and a touch driving method is capable of supplying touch driving signals having different signal characteristics (e.g., driving frequencies) to touch electrodes or sensing groups by considering such touch electrode-specific or sensing group-specific difference. By this configuration, without reducing touch sensitivity, the touch sensing time required to sense all of the touch electrodes can be reduced, and a display driving time can be significantly lengthened, making it possible to implement a display requiring a large screen and high-resolution.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: February 2, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jaehun Jun, Hyunkyu Park
  • Patent number: 10890989
    Abstract: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: January 12, 2021
    Assignee: ITE Tech. Inc.
    Inventors: Yi-Chung Chou, Chih-Yuan Kuo, Ta-Wei Liu