Patents Examined by Premal Patel
  • Patent number: 9600125
    Abstract: A capacitive sensor array may include a first set of sensor electrodes and a second set of sensor electrodes. Each of the second set of sensor electrodes may intersect each of the first set of sensor electrodes to form a plurality of unit cells each corresponding to a pair of sensor electrodes including one of the first set of sensor electrodes and one of the second set of sensor electrodes. Each point within each of the plurality of unit cells may nearer to a gap between the pair of sensor electrodes corresponding to the unit cell than to a gap between any different pair of sensor electrodes, and a first trace pattern within a first unit cell of the plurality of unit cells may be different from a second trace pattern within an adjacent unit cell of the plurality of unit cells.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 21, 2017
    Assignee: CTPRESS SEMICONDUCTOR CORPORATION
    Inventors: Massoud Badaye, Peter Vavaroutsos, Milton Ribeiro, Oleksandr Hoshtanar
  • Patent number: 9600093
    Abstract: A touch sensing system includes a pen including a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which transmits a resonant inductive signal to the pen through electric coupling and to receive a resonance signal from the pen through the antenna.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 21, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dongjo Park, Sojung Jung
  • Patent number: 9591188
    Abstract: The present disclosure pertains to a method for designing cascaded bit sequences for cascaded digital displays. The method avoids unwanted interactions between cascaded sequences in cascaded digital displays. By using sequences with a particular structure, cascaded sequences can be designed such that no sequence is affected by the others. The following rules must be followed in constructing the sequence. First, the display devices must be frame-locked, so that the timing relationship between the sequences is maintained throughout each frame. Second, for each display device, the ratio of bit plane weights must remain constant, regardless of the pixel data displayed on the other display device(s). Third, the amount of bit plane skew must remain constant, regardless of the pixel data displayed on the other display device(s). Fourth, bit plane phased leakage must be compensated for or avoided.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: March 7, 2017
    Assignee: BASS ROOTS TECHNOLOGIES, LLC
    Inventor: Bradley William Walker
  • Patent number: 9589666
    Abstract: An amorphous silicon gate driving circuit includes multiple cascaded shift registers. Each of the shift registers includes a shift register unit, which contains multiple TFTs and multiple capacitors, an N-th output terminal GN, an (N+1)-th output terminal GN+1, a high voltage signal terminal Vgh and a low voltage signal terminal Vgl; and an output control unit having an N-th additional output terminal. The output control unit is configured to control a time period during which the N-th additional output terminal outputs a high voltage level to be within a time period during which the N-th output terminal outputs the high voltage level, where a signal falling edge for turning off TFTs at a former one of two adjacent rows of pixel units is completely separated from a signal rising edge for turning on TFTs at a latter one.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: March 7, 2017
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yajie Zheng, Yan Ling
  • Patent number: 9591297
    Abstract: A holographic LCD stereo display system is disclosed. The holographic LCD stereo display system comprises: a holographic projection device (11), a signal synchronous generator (12) and a holographic LCD having multiple layer of LCD panels.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: March 7, 2017
    Assignee: Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yangbing Yu, Zhe Shi
  • Patent number: 9588620
    Abstract: Disclosed are a method and device for displaying a character on a touchscreen. The method comprises: when it is detected that a time period during which the user touches an area, where a character is displayed, on the touchscreen exceeds a preset time threshold, a shaded area formed when the user touches the touchscreen is determined; at least one shaded character in the shaded area is acquired, and independently displayed and enlarged on a preset enlargement area excluding the shaded area on the touchscreen; and the touch of the user on the preset enlargement area is detected, and locating and selecting is performed on the at least one character in the shaded area according to the detected touch.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: March 7, 2017
    Assignee: ZTE CORPORATION
    Inventors: Minggang Gao, Qingyu Ni, Zhuo Wang
  • Patent number: 9582094
    Abstract: An information processing device includes: an operation type judgment unit that judges a type of touch operation, based on information representing a number of pixels per unit length of a screen of a display with a touch panel connected to an own device and on information indicating a touch position at which the display with the touch panel was touched.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: February 28, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yasuhiro Nakamura
  • Patent number: 9583059
    Abstract: The present invention provides a level shift circuit, an array substrate and a display device. The level shift circuit comprising: a first level non-inverting input terminal, a first level inverting input terminal, a second level non-inverting input terminal, a second level inverting input terminal, a level state transferring unit and a second level driving unit; the level state transferring unit receives a first level input through the first level non-inverting input terminal and the first level inverting input terminal, and transfers a high and low state of the input first level to the second level driving unit; the second level driving unit outputs a second level of a corresponding state to the second level non-inverting input terminal and the second level inverting input terminal according to the input high and low state, wherein the first level is not equal to the second level.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 28, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Jian He, Tingting Jin
  • Patent number: 9582155
    Abstract: A touch panel acquires position information indicating the position of contact with or approach to an operation surface in every period divided by predetermined intervals. An action judging unit judges whether or not an action by contact with or approach to the operation surface of the touch panel is a first predetermined action. An operation determining unit determines a start page of automatic page-turning in which display pages of a document to be displayed are changed from one page to another in sequence on the basis of the position information and the information indicating the history of the position information when the action judging unit judges that action by the contact with or the approach to the operation surface of the touch panel is the first predetermined action.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: February 28, 2017
    Assignee: NEC CORPORATION
    Inventor: Masanao Iwamoto
  • Patent number: 9583073
    Abstract: A constant current LED driver with adaptive startup voltage control is generally configured to provide output current to an LED load. A controller is configured to sense the output current, and to provide driving control signals as a function thereof to maintain the sensed current at a target current. During startup operation, the controller provides driving control signals further as a function of a first defined maximum output voltage value. During steady state operation, the driving control signals are provided as a function of a second defined maximum output voltage value. The maximum values may be set according to forward voltage drop values for the LED load in association with first and second temperatures, respectively. During transition operations, the maximum output voltage value is continuously adjusted between the first and second maximum output voltage values, such that the LED load exceeds its warm up time prior to steady state operation.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: February 28, 2017
    Assignee: UNIVERSAL LIGHTING TECHNOLOGIES, INC.
    Inventors: Wei Xiong, Keith Davis
  • Patent number: 9575597
    Abstract: The present disclosure provides an optical touch system and an object analyzation method thereof. The optical touch system includes a panel and an image sensing apparatus installed thereon. The object analyzation method includes the following steps: capturing a first image across a touch surface of the panel with an image sensing apparatus, wherein the first image has an object image formed corresponding to the position of a pointer on the touch surface; defining an image window that corresponds to the image position of the object image in the first image captured; determining whether the pointer is touching the touch surface or hovering over the touch surface by analyzing the brightness difference among the plurality of pixels in the image window.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: February 21, 2017
    Assignee: PIXART IMAGING INC.
    Inventors: Yu-Chia Lin, Chih-Hsin Lin
  • Patent number: 9575586
    Abstract: A touch input device capable of detecting a pressure of a touch on a touch surface includes: a display module and a pressure electrode. The display module includes a display panel and a reference potential layer. An electrical signal, which is changed according to a capacitance between the pressure electrode and the reference potential layer, is detected from the pressure electrode and the capacitance changes depend on a change of a relative distance between the pressure electrode and the reference potential layer, such that the pressure of the touch is detected based on the capacitance.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 21, 2017
    Assignee: HiDeep Inc.
    Inventors: Seyeob Kim, Sangsic Yoon, Sunyoung Kwon, Hojun Moon, Taehoon Kim
  • Patent number: 9569095
    Abstract: A cover for a handheld electronic device, including a cover piece that fits over a side surface of a handheld electronic device, a plurality of proximity sensors mounted in the cover piece, and directed outward from the side surface, for detecting user gestures performed outside the side surface, wireless communication circuitry, and a processor configured to operate the proximity sensors, and to cause the wireless communication circuitry to transmit commands to the electronic device in response to gestures detected by the proximity sensors.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: February 14, 2017
    Assignee: Neonode Inc.
    Inventors: Thomas Eriksson, Stefan Holmgren, John Karlsson, Remo Behdasht, Erik Rosengren, Lars Sparf
  • Patent number: 9570017
    Abstract: To provide a hold-type display device without a problem of motion blur and a driving method thereof. The length of a period for displaying a blanking image in one frame period is controlled in accordance with a control parameter showing the degree of motion blur, and the level of a signal supplied to a display element is changed in accordance with the length of the period for displaying the blanking image. Accordingly, the hold-type display device without a problem of motion blur and the driving method thereof can be provided.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: February 14, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasunori Yoshida, Hajime Kimura
  • Patent number: 9557588
    Abstract: A display device includes a housing, a screen connected to the housing and being configured to display data in grey-scale on a first portion of the screen, and at least one light source connected to the housing. The light source is configured to project color content on a second portion of the screen. The screen may be flexible and/or rollable on a roller included in the housing. The screen may be electrophoretic and/or reflective. The display device may also include optics or a light guide-to-guide light from the light source to the screen. Further, optics may be provided to detect light reflected from the screen and direct more light to portions of the screen having reduced illumination.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: January 31, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hjalmar Edzer Ayco Huitema, Pieter J. G. van Lieshout, Volker Barnhart Verschoor
  • Patent number: 9552019
    Abstract: A portable terminal including: a controller receiving signals corresponding to a plurality of input buttons and outputting image data to be displayed on the plurality of input buttons using the received signals; and a plurality of buttons for inputting a key from a user and outputting a signal corresponding to the key pressed, and for receiving the image data from the controller and displaying the received image data. By using the display buttons for displaying variable images corresponding to specific functions as well as an essential function of inputting keys from a user when a specific function is input in the portable terminal, a plurality of functions can be input with only a few buttons, providing speed and convenience to the user for function input.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-kyu Choi, Wook Chang, Sun-gi Hong, Won-chul Bang, Jung-hyun Shim, Soon-joo Kwon, Seong-woon Kim
  • Patent number: 9552783
    Abstract: A source driver includes: a gamma voltage generator configured to receive a plurality of gamma reference voltages, a first common pre-emphasis voltage, and a second common pre-emphasis voltage, and to generate a plurality of gamma voltages based on the gamma reference voltages, a plurality of first pre-emphasis pulses respectively corresponding to pixels that emit light of different colors based on the first common pre-emphasis voltage, and a plurality of second pre-emphasis pulses respectively corresponding to the pixels that emit the light of different colors based on the second common pre-emphasis voltage; and a voltage supply unit configured to output one of the first pre-emphasis pulses and the second pre-emphasis pulses to each of a plurality of data lines, and to output data voltages to the plurality of data lines based on the gamma voltages.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jin-Woo Kim
  • Patent number: 9542051
    Abstract: In a method for performing a touch determination with a capacitive sensor, a self capacitance measurement of a capacitive sensor is initiated, wherein at the same time a mutual capacitance measurement including the capacitive sensor is performed. Such a method can be performed such that the self capacitance measurement and the mutual capacitance measurement differentially cancel with ungrounded conductive objects approaching or touching the capacitive sensor and additively combine for grounded objects approaching or touching the capacitive sensor.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 10, 2017
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Burke Davison, Xiang Gao, Yann LeFaou
  • Patent number: 9536462
    Abstract: A driving device and a source driving method are provided. The driving device includes a first code mapping unit, a first source driving channel, a second code mapping unit and a second source driving channel. The first code mapping unit converts a first input code in input data into a first intermediate code according to a first code-to-code mapping relation. The first source driving channel converts the first intermediate code into a first analog voltage according to a first code-to-voltage mapping relation. The second code mapping unit converts a second input code in the input data into a second intermediate code according to a second code-to-code mapping relation which is different from the first code-to-code mapping relation. The second source driving channel converts the second intermediate code into a second analog voltage according to a second code-to-voltage mapping relation which is different from the first code-to-voltage mapping relation.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: January 3, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Po-Yu Tseng, Jhih-Siou Cheng, Pang-Chen Hung
  • Patent number: 9535529
    Abstract: A smartphone includes a cover layer; an LCD panel which is located under the cover layer and includes a liquid crystal layer, and a first glass layer and a second glass layer between which the liquid crystal layer is placed, wherein at least a portion of a touch sensor which senses touch in a capacitive manner is located between the first glass layer and the second glass layer; a backlight unit which is located under the LCD panel; a pressure electrode which is located under the backlight unit; and a shielding member which is located under the pressure electrode.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: January 3, 2017
    Assignee: HIDEEP INC.
    Inventors: Seyeob Kim, Sangsic Yoon, Sunyoung Kwon, Hojun Moon, Taehoon Kim