Patents Examined by Neil Wood
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Patent number: 9116571Abstract: Systems and methods are disclosed for differentiating between stylus touches and non-stylus touches on a touchscreen device. A stylus emits a signal, received by the touchscreen device, and software selects a touch, the touch start event for which occurred near the time of the signal, and the size and location of which best fit filters, as being the touch made by the stylus. The software associates that touch with the stylus until the touch ends, or until the stylus emits a signal indicating that contact has ended. The signal may be mechanically generated audio, such as from the stylus contacting the screen, or electronic (audio, RF, IR), generated by the stylus upon detecting pressure or capacitive flux. The methods and systems allow software to perform palm rejection filtering, to track one stylus or multiple styluses, and to ignore touches triggered by dirt, rain, and other environmental causes.Type: GrantFiled: November 5, 2012Date of Patent: August 25, 2015Assignee: ADONIT CO., LTD.Inventors: Zachary Joseph Zeliff, Yueh-Hua Li, Nate Lokers, Kris Perpich
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Patent number: 9113159Abstract: A driving circuit perform first driving in which, in a first write period, a grayscale potential in an odd-numbered row is supplied to the pixels of a first group and, in a second write period, the grayscale potential is supplied to the pixels in an even-numbered row, and can perform second driving in which, in the first write period, the grayscale potential in the even-numbered row is supplied to the pixels of a second group and, in the second write period, the grayscale potential is supplied to the pixels in the odd-numbered row. In a right eye display period, the first driving is performed in a unit period U1 and the second driving is performed in a unit period U2. In a left eye display period, the second driving is performed in the unit period U1 and the first driving is performed in the unit period U2.Type: GrantFiled: August 23, 2012Date of Patent: August 18, 2015Assignee: SEIKO EPSON CORPORATIONInventor: Akihiko Ito
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Patent number: 9063596Abstract: A multi-touch positioning method for a touch control device is disclosed. The touch control device includes a plurality of sensing channels, and each of the plurality of sensing channels is interlaced by a first sensing electrode and a second sensing electrode. The multi-touch positioning method includes retrieving a first touch sensing value and a second touch sensing value respectively corresponding to the first sensing electrode and the second sensing electrode, adding the first touch sensing value and the second touch sensing value to generate a sensing sum value, determining a touch sensing channel having a local maximum value according to the plurality of sensing sum values of the plurality of sensing channels, so as to define a touch point on the touch sensing channel, and calculating a coordinate of the touch point according to the touch sensing channel and its neighboring sensing channels.Type: GrantFiled: November 28, 2012Date of Patent: June 23, 2015Assignee: NOVATEK Microelectronics Corp.Inventors: Shun-Li Wang, Chun-Chieh Chang
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Patent number: 8963912Abstract: The present invention is an active matrix display device in which, during each kth period (k is an integer from 0 to n), each data signal line (S1to S2773) is supplied with a signal whose electric potential polarity is constant, and a picture element to which a signal finishes being written within the kth period is caused to be in a selected state from a (k?1)th period to the kth period so as to be conductive to a data signal line connected thereto, and during each kth period (1?k?n?1) for the effective display region, a data signal line (S1 or S2773) that is not connected to a picture element to which a signal finishes being written within the kth period is supplied with a signal that was supplied to this data signal line during the (k?1)th period.Type: GrantFiled: May 12, 2010Date of Patent: February 24, 2015Assignee: Sharp Kabushiki KaishaInventor: Shinji Yukawa
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Patent number: 8963896Abstract: A dot inversion TFT array is provided. The dot inversion TFT array includes: a plurality of data lines; a plurality of dot unit pairs, each including a first dot unit and a second dot unit and coupled to one of the data lines; and a plurality of gate line pairs, each including a first gate line and a second gate line. A predetermined dot unit pair of the dot unit pairs is coupled to a predetermined gate line pair of the gate line pairs, and two horizontally neighboring dot unit pairs of the dot unit pairs are mirror-symmetrical.Type: GrantFiled: January 11, 2012Date of Patent: February 24, 2015Assignee: MStar Semiconductor, Inc.Inventors: Min-Nan Hsieh, Jian-Kao Chen, Chin-Wei Lin
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Patent number: 8928703Abstract: A pixel structure is provided. The pixel structure includes a first pixel unit, a second pixel unit and a discharge unit. The first pixel unit includes a first active device and a first pixel electrode. The second pixel unit includes a second active device and a second pixel electrode. Gates of the first active device and the second active device are electrically connected to a scan line. Drains of the first active device and the second active device are electrically connected to a data line. The first pixel electrode is electrically connected to a source of the first active device. The second pixel electrode is electrically connected to a source of the second active device. The discharge unit is configured to set that a voltage of the second pixel electrode is smaller than a threshold voltage according to a driving signal received by a driving line.Type: GrantFiled: January 15, 2012Date of Patent: January 6, 2015Assignee: Au Optronics CorporationInventors: Yu-Sheng Huang, Ya-Ling Hsu
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Patent number: 8922599Abstract: A multiple pixel display driving system and method. A display generator displays a plurality of images on a multiple pixel display. An aging monitor determines values of total electrical current consumed by the multiple pixel display while displaying the images, and determines electrical current value differences between baseline electrical currents total electrical currents associated with a test pattern image. A plurality of pixel aging characterization values indicating decreases in electrical current consumed by a pixels of the display is determined, and a display aging compensation matrix representing values by which pixel intensity values are to be compensated is determined based on the pixel aging characterization values.Type: GrantFiled: August 23, 2012Date of Patent: December 30, 2014Assignee: BlackBerry LimitedInventor: Jackson Chi Sun Lai
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Patent number: 8913052Abstract: A display device includes a display panel, a module frame having first and second contact pins, and a Printed Circuit Board (PCB) having first and second pads connectable with the first and second contact pins of the module frame, respectively, in a contacting state and disconnectable therewith in a non-contacting state. The first and second contact pins are electrically connected to each other. The PCB includes a circuit block in a non-operational state when the first and second pads are in the non-contacting state with the first and second contact pins of the module frame, respectively.Type: GrantFiled: January 5, 2012Date of Patent: December 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: BonSeog Gu, Haekwan Seo, Taejin Kim, Doyoub Kim, Myungho Lee
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Patent number: 8890783Abstract: A liquid crystal display having photo-sensing input mechanism includes a first gate line for transmitting a first gate signal, a second gate line for transmitting a second gate signal, a data line for transmitting a data signal, a pixel unit for outputting an image signal according to the first gate signal and the data signal, a readout line for transmitting a readout signal, a photo-sensing input unit and a driving adjustment unit. The photo-sensing input unit is utilized for generating a sensing voltage according to a driving voltage and an incident light signal, and is further utilized for outputting the readout signal according to the sensing voltage and the first gate signal. The driving adjustment unit is employed to provide the driving voltage according to the second gate signal and the incident light signal.Type: GrantFiled: January 10, 2012Date of Patent: November 18, 2014Assignee: AU Optronics Corp.Inventors: Pei-Yi Chen, Hsueh-Ying Huang, Jian-Shen Yu