Error Correction Patents (Class 178/18.02)
  • Patent number: 10444928
    Abstract: In a capacitive touch panel, edge regions of the panel display generally have poor accuracy of coordinate detection of a touch point as compared to the intermediate region of the panel display. A display device includes a plurality of first electrodes arranged at predetermined pitches and extending in a X-direction; and a plurality of second electrodes arranged at predetermined pitches and extending in a Y-direction, wherein both endmost first electrodes of the plurality of first electrodes have a smaller pitch than the other first electrodes, both endmost second electrodes of the plurality of second electrodes have a smaller pitch than the other second electrodes, and the display device is configured to detect a touch based on a capacitance variation at one or more of intersections of the plurality of first electrodes with the plurality of second electrodes.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: October 15, 2019
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Tanaka, Masahiro Teramoto
  • Patent number: 10310644
    Abstract: An electronic device is provided. The electronic device includes a reflector sheet disposed under a display panel and a digitizer disposed under the reflector sheet. The digitizer may include a first circuit layer including a conductive circuit pattern arranged in a first direction, a second circuit layer including a conductive circuit pattern arranged in a second direction, and an insulating layer electrically isolating the first circuit layer and the second circuit layer. The digitizer further includes at least one dummy circuit pattern formed on at least one of the first circuit layer or the second circuit layer.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 4, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Che Uk Park
  • Patent number: 10191598
    Abstract: A coordinate indicating apparatus includes a channel electrode which includes a first plurality of electrodes arranged in a first direction and a second plurality of electrodes arranged in a second direction perpendicular to the first direction, and which has capacitance between the first plurality of electrodes and the second plurality of electrodes, the capacitance being changed by an approaching contact object; a driver configured to apply driving signals to the first plurality of electrodes simultaneously; a receiver configured to receive response signals from the second plurality of electrodes; and a controller configured to determine a location of the contact object based on the driving signals transmitted to the first plurality of electrodes and the response signals received from the second plurality of electrodes, wherein the driver is configured to simultaneously apply, to the first plurality of electrodes, continuous driving signals according to a matrix corresponding to a Hadamard matrix, and where
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: January 29, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung-soo Park, Byung-hoon Kang, Chang-byung Park, Gyu-hyeong Cho
  • Patent number: 10191075
    Abstract: An apparatus to detect a direction or velocity of a movement of equipment by using a single sensor. The apparatus includes a conversion unit that converts sensed information obtained from the single sensor into a voltage value corresponding to the movement of the equipment, a determination unit that determines whether one of a first interrupt and a second interrupt occurs, the first interrupt occurring when the converted voltage value reaches a threshold value and the second interrupt occurring when a preset amount of time passes from a time when the single sensor starts operating, and a calculation unit that calculates one of the direction and the velocity of the movement of the equipment by using voltage information at time s when the first interrupt or the second interrupt occurs and voltage information at a predetermined time before the times when the first interrupt or the second interrupt occurs.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-eui Shin, Myung-won Park, Jae-heung Park, Ki-oh Jung
  • Patent number: 10139964
    Abstract: A determination is made, on the basis of an electrostatic capacitance value of an electrostatic sensor provided to electrostatic touch panel and a reference value, whether or not the electrostatic touch panel is operated, and the reference value is modified to be increased in a case where it is determined that the electrostatic touch panel is operated and a variation of the electrostatic capacitance value is higher than or equal to a first threshold.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyosuke Watanabe, Takehiko Kasamatsu
  • Patent number: 10067575
    Abstract: A touch sensitive device can be capable of detecting signals generated by a stylus and correcting the detected stylus signals for effects due to noise present on the device. In one example, signals are taken from one or more electrodes that are a pre-determined distance away from an electrode in which a stylus signal is detected. The pre-determined distance can be empirically determined such that a noise estimate can be generated such that the electrodes have a higher probability of containing only noise that is highly correlated to the noise present on a detected stylus signal. The generated noise estimate is then subtracted from a detected stylus signal to reduce the effect of noise on the stylus signal.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: September 4, 2018
    Assignee: Apple Inc.
    Inventors: Manu Agarwal, Shahrooz Shahparnia, Martin Paul Grunthaner
  • Patent number: 9990087
    Abstract: A capacitive force sensor characterization system for calibrating a capacitive force sensor included in a personal electronic device. The capacitive force sensor includes a first capacitor plate coupled to a flexible element of the personal electronic device, which is coupled to the device housing, and a second capacitor plate coupled to an internal structural member of the personal electronic device. The internal structural member is not coupled to the housing during the characterization.
    Type: Grant
    Filed: September 28, 2013
    Date of Patent: June 5, 2018
    Assignee: Apple Inc.
    Inventor: Peter W. Richards
  • Patent number: 9927917
    Abstract: An electronic device includes a display including a touch sensor, a contextual sensor configured to provide data indicative of an operating condition of the electronic device, one or more memories in which touch input instructions, touch event mapping instructions, and a touch event mapping model are stored, and a processor coupled to the memory. The processor is configured through execution of the touch input instructions to obtain data indicative of an initial assessment of touch event position via the touch sensor. The touch event mapping model maps the initial assessment of touch event position to an adjusted touch event position as a function of the data indicative of the operating condition of the electronic device.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: March 27, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Asela Gunawardana, Timothy S. Paek, Vishwas Kulkarni, Dmitry Rudchenko, Devlin Bentley, David Nelson
  • Patent number: 9921705
    Abstract: A resistive film type touch panel includes a transparent insulating film, a plurality of upper electrodes, and a plurality of routing wires. The plurality of upper electrodes are formed on the lower surface of the transparent insulating film and are arranged in a direction, and includes a group of the electrodes electrically connected with each other. The electrical combinations of the detection electrodes adjacent with each other in the direction of a planned simultaneous detection number are different from one another. The plurality of routing wires extend from the plural upper electrodes, and are formed in a frame area outside of the plurality of upper electrodes on the lower surface. Thus, the number of the electrodes is increased in order to improve the resolution, while also miniaturizing the touch panel.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 20, 2018
    Assignee: Nissha Co., Ltd.
    Inventor: Junichi Shibata
  • Patent number: 9922622
    Abstract: In a method of avoiding interference in an integrated capacitive sensor device and display device, a first transmitter signal having a first frequency is transmitted with a combination electrode of the integrated capacitive sensor device and display device. The combination electrode is configured for both capacitive sensing and display updating. A shift is made from transmitting the first transmitter signal with the combination electrode to transmitting a second transmitter signal with the combination electrode. The shift is made by changing a duration of at least one non-display update time period of the display device. The second transmitter signal has a second frequency, and the shifting occurs based at least in part upon an amount of interference.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: March 20, 2018
    Assignee: Synaptics Incorporated
    Inventor: Joseph Kurth Reynolds
  • Patent number: 9910542
    Abstract: Methods, systems, and computer readable media are disclosed having methods for correcting a location of a touch sensed by a capacitive touch screen when using a stylus, especially an active electronic stylus. The various corrector methods correct touch locations such as manufacturer's built-in offset designed for fingertips, touchscreen drive/sense electrode banding, stylus angle offset, parallax, long linear stroke smoothing, and/or loop smoothing. The corrector methods used may depend on the stylus model and/or the tablet model detected. The corrector methods may configure themselves to conform to the stylus model and/or tablet model detected.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: March 6, 2018
    Assignee: Adonit Co., Ltd.
    Inventors: Timothy David Ritchey, Jonathan Arbogast, Ian Everett Busch, Shane O'Donnell
  • Patent number: 9910540
    Abstract: Method and system are provided for management of a touchscreen interface of a device. The method includes monitoring touchscreen interface function by logging data relating to user interaction with locations of the touchscreen interface. The logged data is then analyzed to identify one or more areas of the touchscreen interface which are inactive. The remaining active areas of the touchscreen interface are modeled to form a modified interface. An original touchscreen interface is then mapped to the modified interface resulting in only use of the remaining active areas.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: March 6, 2018
    Assignee: International Business Machines Corporation
    Inventors: Fiona M. Crowther, Geza Geleji, Christopher J. Poole, Martin A. Ross, Craig H. Stirling, Ian T. Stirling
  • Patent number: 9870102
    Abstract: An input device includes a display section, a touch panel, a pressed position detecting section, a pressing force detecting section, a storage section, and a control section. The touch panel includes a plurality of electrodes. The pressed position detecting section determines whether or not the touch panel is pressed according to a resistance between two electrodes among the electrodes and a pressing determination threshold. The pressed position detecting section detects a pressed position where the touch panel is pressed. The pressing force detecting section detects a determination pressing force at a time when the pressed position detecting section determines a pressing. The storage section stores therein the pressed position and the determination pressing force in association with the pressed position.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 16, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Katsushi Saiki
  • Patent number: 9853092
    Abstract: An OLED display device having a touch sensor is provided. The touch sensor includes a base layer; a plurality of first touch electrodes arranged in a first direction on a first surface of the base layer; a plurality of second touch electrodes arranged in a second direction crossing the first direction on a second surface of the base layer; a plurality of first routing wires connected to the first touch electrodes on the first surface of the base layer, respectively; a plurality of second routing wires separated from the plurality of first routing wires and formed on the first surface of the base layer; and a plurality of third routing wires connected to the second routing wires respectively via holes, and formed on the second surface of the base layer. The base layer is one of a barrier layer, an anti-scratch layer, and a circular polarization layer.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: December 26, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Namseok Lee, Yunho Kook, Junghwan Lee, Taeyeon Yoo, Yonghee Han, Sunggon Hong, Jinwook Choi
  • Patent number: 9841851
    Abstract: In a capacitive touch panel, edge regions of the panel display generally have poor accuracy of coordinate detection of a touch point as compared to the intermediate region of the panel display. A display device includes a plurality of first electrodes arranged at predetermined pitches and extending in a X-direction; and a plurality of second electrodes arranged at predetermined pitches and extending in a Y-direction, wherein both endmost first electrodes of the plurality of first electrodes have a smaller pitch than the other first electrodes, both endmost second electrodes of the plurality of second electrodes have a smaller pitch than the other second electrodes, and the display device is configured to detect a touch based on a capacitance variation at one or more of intersections of the plurality of first electrodes with the plurality of second electrodes.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 12, 2017
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Tanaka, Masahiro Teramoto
  • Patent number: 9779280
    Abstract: A sensor has drive lines and transverse pickup lines to define an electrode pair where each pickup line crosses a drive line. A reference pickup line is arranged parallel to the pickup lines and a compensation drive line is arranged parallel to the drive lines. A signal source provides a first signal to the drive lines and a second signal that is the inverse of the first signal to the compensation drive line. An amplifier has a first input connected to a pickup line, a second input connected to a reference pickup line, and a output indicative of an object in contact with the electrode pair(s). Each impedance between the compensation drive line and a pickup line, between the reference pickup line and a reference drive line, and between the compensation drive line and the reference pickup line is equal to the impedance at the electrode pair when no object is contact with the electrode pair.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 3, 2017
    Assignee: IDEX ASA
    Inventor: Fred G. Benkley, III
  • Patent number: 9720544
    Abstract: Distinguishing sloppy taps from sliding motions is disclosed using an algorithm that can take into account both a time instability factor Tinst and a touch instability factor Zinst. A limited amount of motion per frame can be subtracted off immediately following the detection of a touch event. Small lateral motions indicative of a sloppy tap can be suppressed, while fast finger motions indicative of a quick, long cursor movement can immediately pass through the filter without being suppressed by a significant amount. A motion pass-through suppression factor can be applied subtractively to motion in particular direction as a function of Zinst and Tinst, wherein Zinst can represent a suppression value given as a finger speed for a particular percentage change in touch instability per frame, and Tinst can represent a suppression value given as finger speed for a particular tpress.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: August 1, 2017
    Assignee: Apple Inc.
    Inventor: Wayne Carl Westerman
  • Patent number: 9652015
    Abstract: A capacitance sensing circuit receives an application of a power supply. The capacitance sensing circuit controls a switch circuit to connect the power supply to a processing device responsive to the application of the power supply. The capacitance sensing circuit receives, via a control interface and from the processing device, control information to configure the capacitance sensing circuit. The capacitance sensing circuit disconnects the power supply from the processing device subsequent to receiving the control information.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: May 16, 2017
    Assignee: Cypress Semiconductor Corporation
    Inventors: Carl Liepold, Hans Klein, Hans Van Antwerpen, Adrian Woolley, David Wright
  • Patent number: 9619096
    Abstract: One or more embodiments provide an input device including a multi-level driver and an operating method thereof. The input device includes a sensor board that includes at least one loop. The input device also includes at least one multi-level driver that includes a plurality of drivers, and is configured to output, to the at least one loop, a signal generated based on signals output from the plurality of drivers.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: April 11, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo-Hoon Lee, Ju-Hee Han
  • Patent number: 9563231
    Abstract: A digitizer panel for input with an electronic pen is detachably attached a laptop PC. The laptop PC includes a touch screen housed in a display housing. The display housing is formed of material having electromagnetic wave transmissivity such as GFRP or CFRP. On the back face of the display housing, an electromagnetic induction type digitizer panel can be detachably attached. The digitizer panel and the laptop PC are able to wirelessly communicate with each other. When the digitizer panel is attached, an electronic pen is brought close to the touch screen for input. When the digitizer panel is not attached, the electronic pen is directly brought close to the digitizer panel for input.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: February 7, 2017
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Takayuki Suzuki, Takehito Yamauchi, Yoshihisa Ishihara, Keita Ishikawa
  • Patent number: 9507461
    Abstract: An input apparatus of a portable terminal and an input method for compensating an input from a pen to increase the accuracy of the pen are provided. The input apparatus includes a touch panel configured to generate an input signal according to a pen touch, a memory configured to store at least one lookup table in which data for compensating an error of a pen input according to a user's pen usage characteristic is stored, a controller configured to detect an input coordinate of the pen touch on the touch panel and configured to extract compensation data from the lookup table corresponding to the input coordinate to compensate the error of the pen input, and a display unit configured to display a compensated pen input signal.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: November 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Choongkwon Lim, Sanghyeok Oh, Joohoon Lee, Dohee Kang, Junyun Kim, Jungchul An, Yongseob Yun
  • Patent number: 9495054
    Abstract: A touch control system includes first and second sensing regions. At least one sensor monitors the first sensing region to generate a first sensing amount. At least one second sensor monitors the second sensing region to generate a second sensing amount. An initial coordinate generating module generates an initial coordinate according to the first and second sensing amounts, and determines whether a touch point is in an intersection region. When the determination result of the initial coordinate generating module is affirmative, a correction value generating module generates a correction value according to the first and second sensing amounts. A corrected coordinate generating module multiplies the initial coordinate by a first weight to generate a first weighted result, multiplies the correction value by a second weight to generate a second weighted result, and adds the first and the second weighted results to generate a corrected coordinate.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 15, 2016
    Assignee: MStar Semiconductor, Inc.
    Inventor: Tzu-Wei Liu
  • Patent number: 9489049
    Abstract: An apparatus and method for providing feedback to a user of an electronic device is provided. The apparatus includes a magnetic user input device, a touch panel display configured to display application output and to receive application input, a series of solenoids positioned on each side of or wrapped around the touch panel display, the series of solenoids configured to output a magnetic field, and a processor programmed to execute an application that displays the application output via the touch panel display and in response to input received from the touch panel, drives a separate current to each solenoid of the series of solenoids to apply a force against the magnetic user input device.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: November 8, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Zhiyun Li
  • Patent number: 9483143
    Abstract: A method and system for providing viewing angle sensitive graphics on an electronic device which detects a user viewing a display of an electronic device. The display has a plurality of items displayed for selection by the user, and the display defines a sensitive area including one or more of the plurality of items. A viewing angle of the user is determined based on a facial recognition technique. The sensitive area is adjusted based on the viewing angle, which can include moving the viewing angle, or adjusting a selection by the user from a first item to a second item based on the viewing angle.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 1, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Peter K. Malkin, Calvin B. Swart, Jessica J. Tran, Sharon M. Trewin
  • Patent number: 9472235
    Abstract: A system and a computer program product are disclosed for eliminating access to data on removable storage media of a removable storage media cartridge. The system comprises a computer configured to send to a data storage drive a command to eliminate access to data on a removable storage media cartridge, and send to the data storage drive a command to shred at least one key in response to the command, where shredding the at least one key eliminates access to the data on the removable storage media cartridge. A determination to eliminate access to the data on the removable storage media cartridge is based on a number of read and/or write errors encountered for the removable storage media cartridge.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: October 18, 2016
    Assignee: International Business Machines Corporation
    Inventors: Brian G. Goodman, Paul M. Greco, Glen A. Jaquette
  • Patent number: 9465441
    Abstract: An optical navigation device, including a radiation source capable of producing a beam of radiation; a sensor for receiving an image; and an optical element for identifying movement of an object on a first surface to thereby enable a control action to be carried out. The optical element is such that a whole of the imaged area of the first surface is substantially covered by the object in normal use. The device is operable to receive from the object on the first surface an input describing a pattern, to compare the received pattern to a stored reference pattern and to perform a predetermined function if the received pattern and stored reference pattern are substantially similar. The pattern may be a continuous line, the device being operable to store the continuous line as a set of turning points in chronological order.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 11, 2016
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventor: Benjamin E. Norman
  • Patent number: 9465456
    Abstract: Algorithms can be used to reduce stylus tip wobble for a stylus translating on a surface over and between electrodes of a touch sensor panel. In some examples, a first position estimate can be calculated using a first position calculation method and a second position estimate can be calculated using a second position calculation method. The position of the stylus can be determined based on a weighted combination of the first and second position estimates. In some examples, the first position estimate can be calculated using an even-point centroid of signal contributions from an even number of electrodes of a touch sensor panel and the second position estimate can be calculated using an odd-point centroid of signal contributions from an odd number of electrodes. In some examples, the weighting can be assigned based on a ratio of the two largest amplitude signals and based on a ratio of the second and third largest amplitude signals.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 11, 2016
    Assignee: Apple Inc.
    Inventors: Vivek Pant, Shahrooz Shahparnia, John Greer Elias
  • Patent number: 9459736
    Abstract: A method for detecting force applied to a capacitive sensor array and compensating for coordinate inaccuracy due to force includes receiving a plurality of capacitance measurements from the capacitive sensor array, where the plurality of capacitance measurements includes a first capacitance measurement and a second capacitance measurement, and detecting pressure on the capacitive sensor array based on a comparison between the first capacitance measurement and the second capacitance measurement.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: October 4, 2016
    Assignee: PARADE TECHNOLOGIES, LTD.
    Inventors: Massoud Badaye, Greg Landry
  • Patent number: 9460576
    Abstract: A capacitive fingerprint sensing system includes excitation signal providing circuitry and a plurality of sensing elements. Each sensing element includes a protective dielectric top layer, an electrically conductive sensing structure coupled to the excitation signal for providing a sensing signal indicative of a change of a charge carried by the sensing structure resulting from a change in potential difference between the finger and the sensing structure, and demodulation circuitry connected to the sensing circuitry for combining the sensing signal and a demodulation signal being timing-related to the excitation signal to provide a combined signal including a DC signal component indicating the change of the charge carried by the sensing structure. The fingerprint sensing system further includes readout circuitry connected to each of the sensing elements for providing a representation of the fingerprint pattern based on the DC signal component from each of the sensing elements.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: October 4, 2016
    Assignee: FINGERPRINT CARDS AB
    Inventor: Frank Robert Riedijk
  • Patent number: 9395844
    Abstract: A terminal device includes a memory, and a processor coupled to the memory, configured to calculate a difference between first input coordinates that are related to start-up of a first icon on a touch panel and second input coordinates that are related to start-up of a second icon on the touch panel when the start-up of the second icon is detected after termination of an application that corresponds to the started-up first icon is detected, and modify a correction value of an input position for the touch panel when the difference is within a certain range.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: July 19, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Naoya Hirao
  • Patent number: 9395861
    Abstract: A touch panel including upper and lower electrode substrates including upper and lower conductive layers, respectively; first and second electrodes respectively provided at bath ends of the upper conductive layer in a first direction for causing an electric potential distribution in the first direction; third and fourth electrodes respectively provided at both ends of the lower conductive layer in a second direction perpendicular to the first direction for causing an electric potential distribution in the second direction; a flexible substrate provided to be connected to the lower electrode substrate or the upper electrode substrate; a first resistor portion electrically connected to either of the first or second electrode and formed at the upper electrode substrate or the flexible substrate; and a second resistor portion connected to either of the third or fourth electrode and formed at the lower electrode substrate or the flexible substrate.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: July 19, 2016
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Genichi Matsuda, Satoshi Sakurai, Nobuyoshi Shimizu, Yuji Makiuchi, Mitsuhiro Sekizawa
  • Patent number: 9367184
    Abstract: This invention offers a signal processing circuit of an electrostatic capacity type touch panel which is capable of switching between a differential input mode and a single input mode and has an extended adjustable range of an offset in the single input mode. The signal processing circuit of this invention includes a first sensor circuit of a differential input type, a second sensor circuit of a single input type, a third and fourth electrostatic capacitors that are variable capacitors for calibration to adjust the offset in an output voltage of the first sensor circuit, and a switching control circuit to control so as to put in operation one of the first and second sensor circuits. The switching control circuit also controls so that the third and fourth electrostatic capacitors for calibration are connected in parallel to each other when the second sensor circuit is put in operation.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: June 14, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Kazuyuki Kobayashi, Yasuhiro Kaneta
  • Patent number: 9329721
    Abstract: An interference suppression module coordinates devices susceptible to interference such as a touch sensor with potentially interference generating devices such as a display drive matrix, an active haptic device, and so forth. As a result of status signals generated by the interference suppression module, controllers of the susceptible devices may modify the input received to mitigate or avoid interference.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: May 3, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: David C. Buuck, John Mathew Depew
  • Patent number: 9310934
    Abstract: The presence of moisture on a touch screen device can mimic a user's touch causing false input detection and recognition. Disclosed are systems and methods for detecting the presence of moisture on a touch screen device.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: April 12, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Teresa Ka Ki Ng, William Yee-Ming Huang, Qiang Gao, Hsun Wei David Wong, Carol King Mui Law, Raghukul Tilak, Rex Wang, Suhail Jalil, Mohamed Imtiaz Ahmed
  • Patent number: 9244545
    Abstract: A “Contact Discriminator” provides various techniques for differentiating between valid and invalid contacts received from any input methodology by one or more touch-sensitive surfaces of a touch-sensitive computing device. Examples of contacts include single, sequential, concurrent, or simultaneous user finger touches (including gesture type touches), pen or stylus touches or inputs, hover-type inputs, or any combination thereof. The Contact Discriminator then acts on valid contacts (i.e., contacts intended as inputs) while rejecting or ignoring invalid contacts or inputs. Advantageously, the Contact Discriminator is further capable of disabling or ignoring regions of input surfaces, such tablet touch screens, that are expected to receive unintentional contacts, or intentional contacts not intended as inputs, for device or application control purposes.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: January 26, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Kenneth Paul Hinckley, Hrvoje Benko, Steven Bathiche, Paul Henry Dietz, Anoop Gupta
  • Patent number: 9240782
    Abstract: A touch sensitive device includes a capacitive touch panel with plural electrodes, a driving and sensing circuit electrically connected to the electrodes through sensing lines, and at least one conductive member. The conductive member is arranged orthogonal to and crosses the sensing lines without contact and is electrically connected to the driving and sensing circuit. Therefore, a stable coupling capacitance is provided for a one dimensional capacitive touch panel for improved touch sense performance.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: January 19, 2016
    Assignee: TOUCHPLUS INFORMATION CORP.
    Inventors: Yung-Chan Chou, Shih Hsien Hu
  • Patent number: 9229576
    Abstract: A method comprises during a frame period finding a first EFT noise influenced sensor of a touch screen panel, determining whether the first EFT noise influenced sensor is located at a last transmitting/driving line of the touch screen panel, designating the frame period as a noise influenced frame period using an absolute value threshold if the first EFT noise influenced sensor is not located at the last transmitting/driving line and designating the frame period as the noise influenced frame period using a percentage threshold if the first EFT noise influenced sensor is located at the last transmitting/driving line.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: January 5, 2016
    Assignee: STMicroelectronics Asia Pacific PTE Ltd
    Inventors: HonSiong Ng, Praveesh Chandran, Mythreyi Nagarajan, Ravi Bhatia
  • Patent number: 9189088
    Abstract: An electronic device and a touch operating method thereof are provided. The electronic device includes a touch screen, a storage unit and at least one processing unit, and the touch operating method includes following steps. A touch object above the touch screen is detected by using the touch screen, and a distance between the touch object and the touch screen is estimated. A relative angle of a pointing direction of the touch object with respect to a normal direction of the touch screen is detected. According to the distance and the relative angle, a function is performed on an object displayed by the touch screen.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: November 17, 2015
    Assignee: Acer Incorporated
    Inventors: Tzung-Heng Tsao, Tse-Chia Huang
  • Patent number: 9189121
    Abstract: In one embodiment, a method includes receiving at a stylus a receive signal from a device. The stylus includes one or more computer-readable media embodying logic, and the device includes a touch sensor. The receive signal is received at the stylus through the touch sensor of the device and one or more electrodes of the stylus. The method includes determining whether a level of the receive signal substantially meets or exceeds a pre-determined threshold; if the level of the receive signal substantially meets or exceeds the pre-determined threshold, then transmitting the receive signal to the logic for processing; and, if the level of the receive signal does not substantially meet or exceed the pre-determined threshold, then filtering out the receive signal from processing by the logic.
    Type: Grant
    Filed: December 17, 2011
    Date of Patent: November 17, 2015
    Assignee: Atmel Corporation
    Inventors: Shahrooz Shahparnia, Trond Jarle Pedersen, Vemund Kval Bakken
  • Patent number: 9141210
    Abstract: This disclosure relates to a proximity/motion and touch sensor. The proximity/motion and touch sensor includes a proximity/motion driving electrode, a plurality of first proximity/motion sensing electrode, a plurality of second proximity/motion sensing electrode serials, a plurality of first touch electrode serials, and a plurality of second touch electrode serials.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 22, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Seungrok Shin, Taeyun Kim
  • Patent number: 9116572
    Abstract: A touch input device configured to detect a touch input event and determine if the touch input event is caused by a floating object is provided. The touch input device includes one or more electrodes that scanned with a set of stimulation signals to first detect the presence of a touch event and then scanned with subsequent sets of stimulation signals in order to determine if the touch event is from a grounded object, a poorly grounded object, or a floating object.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: August 25, 2015
    Assignee: Apple Inc.
    Inventors: Albert Lin, David H. C. Shih, Martin Paul Grunthaner
  • Patent number: 9111568
    Abstract: Disclosed is a method for eliminating access to data on removable storage media of a removable storage media cartridge. A key is stored on the removable storage media cartridge, such that data on the removable storage media is accessible with the key. Upon receiving a command to eliminate access to data on the removable storage media the key is shredded such that access to data on the removable storage media is eliminated.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: August 18, 2015
    Assignee: International Business Machines Corporation
    Inventors: Brian Gerard Goodman, Paul Merrill Greco, Glen Alan Jaquette
  • Patent number: 9069430
    Abstract: A system and method for enabling a stylus to be used with a touch sensor even after it has failed in an open mode or a closed mode, wherein the tethered stylus activates the inking function when the stylus is in contact with the touch sensor and deactivates the inking function when the stylus is lifted off the surface of the touch sensor when the switch is functioning properly, but when there is a failure of the switch in the open mode or the closed mode, enabling the tethered stylus to continue functioning by using a timer to activate the inking function when the tethered stylus is close enough to be detected by a touch sensor, and to deactivate the inking function when the tethered stylus is no longer detectable by the touch sensor.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 30, 2015
    Assignee: CIRQUE CORPORATION
    Inventors: Jared G. Bytheway, Nate Coy, Paul H. Glad, Brian Monson, Keith L. Paulsen
  • Patent number: 9069401
    Abstract: An input-capable display device includes a first substrate, a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is formed on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 30, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
  • Patent number: 9046944
    Abstract: A touch screen panel includes a plurality of driving electrodes, a plurality of sensing electrodes crossing the driving electrodes, a driver for supplying a driving signal to the driving electrodes in a touch recognizing mode, and a controller for receiving signals from the sensing electrodes. In a noise measuring mode, the controller is configured to cut off an electrical connection between one of the driving electrodes and the driver or between one of the sensing electrodes and the controller, maintain an electrical connection between another one of the sensing electrodes and the controller, and detect a noise signal from the other one of the sensing electrodes. The touch screen panel and a driving method of the touch screen panel can increase or maximize the reception sensitivity of outside noise.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: June 2, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Soon-Sung Ahn
  • Patent number: 9035871
    Abstract: An apparatus, and an associated method, forms a user interface permitting input of input instructions to an electronic device. Input commands are evidence by tactile input forces applied to a force receiving surface. Force sensing elements are positioned to sense indications of the tactile input force. The force sensing element is caused to exhibit a selected input parameter value through application of a selected force thereto by application of a tightening torque to a fastener positioned in proximity to the force sensing element.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: May 19, 2015
    Assignee: BlackBerry Limited
    Inventors: Patrick Clement Strittmatter, Marc Edward Holbein, Rene Pierre Marchand, Angela Dawn Usiski
  • Patent number: 8994697
    Abstract: A method for determining a displacement of a touch point is applied to a touch panel to reduce noise interfering with determination of the displacement. The method includes obtaining a displacement according to a movement of a touch point on the touch panel; checking whether the displacement is within a predetermined range; and determining that the movement is valid when the displacement is within the predetermined range.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: March 31, 2015
    Assignee: MStar Semiconductor, Inc.
    Inventors: Tsung-Fu Lin, Chao-Cheng Wen
  • Patent number: 8988397
    Abstract: A display control apparatus which can prevent calibration caused by a user's erroneous operation in normal use, and correct for a coordinate deviation beyond the scope of assumption. Transformation of touch input is performed to obtain detected coordinates using a transformation coefficient. When the detected coordinates are obtained inside a first range defined in advance, the detected coordinates are obtained as calibration coordinates. When the detected coordinates are obtained outside the first range, the relationship between the previous detected coordinates and the present detected coordinates is obtained, and whether or not the relationship satisfies a specific condition determined in advance is determined. When the number of times the specific condition is satisfied reaches a predetermined number of times, a plurality of detected coordinates obtained outside the first range are obtained as calibration coordinates.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: March 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasutaka Naka
  • Patent number: 8982093
    Abstract: An interference tolerant capacitive touch sensor readout circuit having improved power and area efficiency is disclosed. Interference rejection for the capacitive touch sensing system is realized by transferring charge between a capacitive touch sensor and the readout circuit at frequencies outside bands where a level of interference is unacceptable. Improved power and area efficient come from the simplicity of the readout circuit which comprises a switched-capacitor integrator, a comparator, a digital accumulator and number of switches for driving a touch sensor and a capacitive feedback loop. The readout circuit is capable of interfacing with both self and mutual capacitance sensor to achieve compatibility with a larger collection of sensors and provides additional sensing and diagnostic functionalities.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Guo Wen Wei, Tom W. Kwan
  • Patent number: 8970535
    Abstract: Electronic apparatus (100) includes a display device (1), a detecting device (20) which detects an input, a state change detecting section (31), and a control section. The control section controls the detecting device (20) so that the detecting device (20) carries out the detection more times during a non-scanning period in a case where a state change causing an improvement in detection accuracy is detected and so that the detecting device (20) carries out the detection fewer times during the non-scanning period in a case where the state change causing a deterioration in detection accuracy is detected. With the configuration, it is possible to improve detection accuracy of the detecting device while reducing electric power consumption.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: March 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Saitoh, Akizumi Fujioka, Masami Ozaki, Toshihiro Yanagi