Patents Examined by Richard A. Hjerpe
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Patent number: 8115718Abstract: This invention provides a color passive matrix bistable liquid crystal display system, in which one respective scan line corresponds to sub-pixels of same color and neighboring scan lines correspond to sub-pixels of different colors. The scan lines are grouped in accordance with the colors of the sub-pixels corresponding thereto such that different scan driving voltages can be provided to the sub-pixels of different colors when the scan lines are scanned. By way of the arrangement of the sub-pixels, different scan driving voltages are switched to the respective scan lines in accordance with the colors of the sub-pixels corresponding thereto. As a result, a demand that the sub-pixels of different colors require different scan driving voltages is satisfied. The image quality is improved.Type: GrantFiled: May 24, 2007Date of Patent: February 14, 2012Assignee: Industrial Technology Research InstituteInventors: Chih-Jen Chen, Chih-Chiang Lu, Tai-Ann Chen, Chung-Yi Chang
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Patent number: 8115740Abstract: The present invention provides a method for executing commands in an electronic device having a touch sensing element. A stylus or finger is used to touch the touch sensing element and move through several sensing areas on the touch sensing element. A responsive signal is generated by the touch sensing element according to the touched sensing areas. A processor then executes a corresponding command in accordance with the responsive signal.Type: GrantFiled: April 2, 2008Date of Patent: February 14, 2012Assignee: High Tech Computer CorporationInventors: John C. Wang, Yi Shen Wang, Hui Wen Wang
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Patent number: 8111212Abstract: A plasma display driving method in which, in an erase stage of a last sub-field of a one-field display period, a scanning pulse is sequentially applied to one row electrode of each of the row electrode pairs for each scanning line or for each scanning line group having a plurality of scanning lines, while an erase pulse is applied to column electrodes simultaneously with the application of the scanning pulse, to cause an erase discharge between the one row electrode and each of the column electrodes to which the erase pulse is applied.Type: GrantFiled: February 7, 2008Date of Patent: February 7, 2012Assignee: Panasonic CorporationInventors: Shunsuke Itakura, Koji Hashimoto
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Patent number: 8111209Abstract: A composite display is disclosed. A first paddle has a first plurality of pixel elements wherein the first paddle is arranged to sweep out a first area during a first paddle cycle. A second paddle has a second plurality of pixel elements wherein the second paddle is arranged to sweep out a second area during a second paddle cycle and wherein the first and second areas include first and second nonoverlapping portions. A first pixel element on the first paddle is configured to be activated when the first pixel element coincides with a first image pixel. A second pixel element on the second paddle is configured to be activated when the second pixel element coincides with a second image pixel. An image corresponding to the first and second image pixels is represented on the composite display by activating the first and second pixel elements.Type: GrantFiled: October 2, 2007Date of Patent: February 7, 2012Assignee: Qualcomm Mems Technologies, Inc.Inventor: Clarence Chui
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Patent number: 8111249Abstract: An impulse-type driving method for a liquid crystal display (LCD) is used for driving a pixel array of an LCD panel. The method includes providing a set of impulse control signals to a source driver. The source driver, according to the set of impulse control signals, drives the pixel array. The set of impulse control signals includes a command signal. The command signal includes a field of determining data voltage polarity and a command field. According to a time sequence, the field of determining data voltage polarity provides a polarity data for determining a voltage polarity output by the source driver. The command field and the field of determining data voltage polarity are consecutively and alternatively output, in which the command field allows to add a dynamic command in accordance with a desired action.Type: GrantFiled: March 11, 2008Date of Patent: February 7, 2012Assignee: Novatek Microelectronics Corp.Inventor: Yu-Tsung Hu
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Patent number: 8111211Abstract: A plasma display includes a plurality of first electrodes divided into at least two groups. In the plasma display, first group cells corresponding to first electrodes of the first group are initialized, and light emitting cells are selected from the first group cells to be sustain-discharged. In addition, second group cells corresponding to the first electrodes of the second group are initialized, and light emitting cells are selected from the second group cells to be sustain-discharged.Type: GrantFiled: January 31, 2008Date of Patent: February 7, 2012Assignee: Samsung SDI Co., Ltd.Inventor: Joo-Yul Lee
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Patent number: 8106929Abstract: A peak intensity level control device that controls a peak intensity level in a self light-emitting display module of an active matrix driving type is disclosed. The device includes: an average picture value calculation section that calculates an average picture value of display data to be supplied to the self light-emitting display module; a driving condition control section that controls, at a time of performing intensity-up driving with respect to the peak intensity level, a driving condition of the self light-emitting display module so as to be able to derive the peak intensity level suited for the average picture value; and a gamma change section that applies, at the time of performing the intensity-up driving with respect to the peak intensity level, a gamma change to the display data so as not to increase power consumption compared with driving with the peak intensity level of a standard value.Type: GrantFiled: December 17, 2007Date of Patent: January 31, 2012Assignee: Sony CorporationInventors: Atsushi Ozawa, Mitsuru Tada
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Patent number: 8106865Abstract: It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax1 and luminance in the second subframe period to display the maximum gray scale is Lmax2, (½) Lmax2<Lmax1<( 9/10) Lmax2 is satisfied in the one frame period, is provided.Type: GrantFiled: May 4, 2007Date of Patent: January 31, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasunori Yoshida, Hajime Kimura
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Patent number: 8106855Abstract: A driving apparatus of a plasma display panel (PDP) operates stably and reliably. The driving apparatus to drive the PDP includes a pulse application unit which applies a pulse to the PDP; and an energy recovery unit which comprises an inductor which generates LC resonance with a panel capacitor element of the PDP, an energy recovery determiner which determines the accumulation of energy during the LC resonance or emission of the accumulated energy to the PDP, and an energy storage unit which stores the accumulated energy, wherein the energy recovery determiner comprises a first falling switching device which determines the accumulation of the energy; and a second falling switching device which is connected between the first falling switching device and the energy storage unit, in order for the second falling switching device to form a current path toward the energy storage unit.Type: GrantFiled: February 27, 2007Date of Patent: January 31, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Hak-Ki Choi, Nam-Sung Jung, Jun-Weon Song, Joo-Yul Lee, Myoung-Kyu Lee
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Patent number: 8106884Abstract: A pointing input device and method, a pointer control device and method, and an image pattern generation device and method which move a mouse pointer displayed in a display region according to the movement of a location pointed at by the pointing input device. The pointing input device includes an image reception unit capturing an image pattern, which is displayed in a display region of a perceived size and based on which the scope of the display region is sensed, and sensing the scope of the image pattern; a coordinate extraction unit extracting coordinates of a location pointed at in the display region based on a center of the sensed scope of the image pattern; and a transmission unit transmitting the extracted coordinates to a pointer control device which controls a mouse pointer displayed in the display region.Type: GrantFiled: February 27, 2007Date of Patent: January 31, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-kyung Nam, Ho-joon Yoo, Woo-jong Cho, Moon-sik Jeong, Chang-su Kim, Sun-gi Hong, Yong-gook Park, Jung-hyun Shim
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Patent number: 8106868Abstract: A pixel structure includes a first scan line, a second scan line, a third scan line, a data line, a first thin film transistor (TFT), a second TFT, a third TFT, a first pixel electrode and a second pixel electrode. Particularly, the second scan line and the third scan line are electrically connected with each other. The first TFT is electrically connected with the first scan line and the data line. The second TFT is electrically connected with the first TFT and the second scan line. Furthermore, the third TFT is electrically connected with the third scan line and the data line. In addition, the first pixel electrode and the second pixel electrode are respectively electrically connected with the second TFT and the third TFT.Type: GrantFiled: July 27, 2007Date of Patent: January 31, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Shu-Yu Chang, Wen-Hsiung Liu
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Patent number: 8102344Abstract: A method for driving a display device includes: dividing an entire gray-scale region corresponding to a data gray scale into a first gray-scale region and a second gray-scale region and setting a first gamma value of the first gray-scale region and a second gamma value of the second gray-scale region, the first gamma value being smaller than the second gamma value; providing a first gray-scale display voltage corresponding to the data gray scale to a display panel during a first section of one horizontal period by using the first gamma value or the second gamma value selected by an inputted data gray scale; and providing a second gray-scale display voltage corresponding to a black gray scale to the display panel during a second section of the one horizontal period.Type: GrantFiled: March 12, 2008Date of Patent: January 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Hoon Lee, Jun-Woo Lee, Hee-Seop Kim, Eun-Hee Han, Hong-Jo Park, Sung-Jae Yun
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Patent number: 8102377Abstract: A system for providing a portable touch system comprises a bezel having a first and a second end, and a housing that is adapted to receive the first and second end of the bezel such that a display area is bounded by the housing and the bezel. At least one camera system is coupled to the housing and is operable to capture within at least a portion of the display area images of an object located within a field of view of the at least one camera system.Type: GrantFiled: September 14, 2007Date of Patent: January 24, 2012Assignee: SMART Technologies ULCInventors: Robert Sirotich, Joe Wright
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Patent number: 8102360Abstract: A method of adjusting image intensity to compensate backlight dimming in dynamic backlight control, the method including estimating distortion of an image that corresponds to different mapping index values 204 selected from the intensity levels 202 of an image. The estimated distortion of image represents factors including the quantity of pixels 205 that have intensity exceeding a mapping index value 204; and the amount 206 that the intensity of each pixel exceeds the corresponding mapping index value. The method further includes selecting from a plurality of schemes 301 for adjusting image intensity to minimize the estimated distortion obtained from the estimating.Type: GrantFiled: May 7, 2008Date of Patent: January 24, 2012Assignee: Solomon Systech LimitedInventors: Wing Chi Stephen Chan, Wai Pak Icarus Choi, Wai-Yan Stephen Lai
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Patent number: 8102365Abstract: Remote control systems that can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can be configured to exhibit signature characteristics. The predetermined light sources also can output light at different signature wavelengths. The predetermined light sources also can emit light polarized in one or more predetermined polarization axes. Remote control systems of the present invention also can include methods for adjusting an allocation of predetermined light sources and/or the technique used to distinguish the predetermined light sources from the stray light sources.Type: GrantFiled: May 14, 2007Date of Patent: January 24, 2012Assignee: Apple Inc.Inventor: Brett G. Alten
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Patent number: 8098265Abstract: This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display system.Type: GrantFiled: October 10, 2008Date of Patent: January 17, 2012Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Aditi Majumder, Robert G. W. Brown, Andrew J. Lanzone
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Patent number: 8094112Abstract: A display apparatus comprising a plurality of pixel portions arranged in a matrix, a signal driver circuit which generates apply voltages corresponding to display data, and applies the apply voltages to the pixel portions, a scan driver circuit which applies a selecting voltage to selected ones of the pixel portions, and a level shifter circuit which converts a voltage level of the display data into a drive voltage level of the signal driver circuit, thereby producing level-shifted display data. The signal driver circuit generates the apply voltages based on the level-shifted display data.Type: GrantFiled: February 7, 2006Date of Patent: January 10, 2012Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.Inventors: Tsutomu Furuhashi, Makiko Ikeda, Naruhiko Kasai, Toshio Futami, Tetsuya Suzuki
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Patent number: 8094118Abstract: An embodiment of the present invention is directed to a method for determining a pixel transformation function that maximizes backlight dimming while maintaining a pre-specified distortion level. The method includes determining a minimum dynamic range of pixel values in a transformed image based on an original image and the pre-specified distortion level and determining the pixel transformation function. The pixel transformation function takes a histogram of the original image to a uniform distribution histogram having the minimum dynamic range.Type: GrantFiled: March 2, 2006Date of Patent: January 10, 2012Assignee: University of Southern CaliforniaInventors: Massoud Pedram, Ali Iranli
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Patent number: 8094104Abstract: A liquid crystal drive device having a differential-type input circuit including a differential amplification stage for receiving a differential signal and a buffer stage for generating an output signal on the basis of an output of the differential amplification stage, the liquid crystal drive device for receiving a signal of display data via the input circuit and outputting a signal for driving a liquid crystal panel on the basis of the display data, wherein a liquid crystal driving voltage VLCD larger than a power supply voltage VCC for logic to be supplied to the operation voltage buffer stage is supplied to the differential amplification stage of the input circuit. A standby function of interrupting an operation current of the differential amplification stage in a period where no display data is received is provided.Type: GrantFiled: August 3, 2007Date of Patent: January 10, 2012Assignees: Hitachi ULSI Systems Co., Ltd., Renesas Electronics CorporationInventors: Arata Kinjo, Kazuo Ookado, Kouichi Kotera, Hitoshi Oda, Masuhiro Endo
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Patent number: 8094092Abstract: A method of driving a PDP apparatus to sufficiently suppress the background light emission and improve the dark room contrast, in which first electrodes and second electrodes are arranged adjacently, a first display line is formed between one side of the second electrode and the first electrode adjacent thereto, a second display line is formed between the other side of the second electrode and the first electrode adjacent thereto, and the interlaced display that displays the first display line and the second display line alternately in different fields is performed, has been disclosed, wherein the reset voltage that directly relates to the intensity of the background light emission is varied according to the number of times of sustain discharges, the display conditions, and so on, in each subfield and the reset discharge is caused to occur with the minimum voltage in each subfield.Type: GrantFiled: July 11, 2008Date of Patent: January 10, 2012Assignee: Fujitsu Hitachi Plasma Display LimitedInventors: Yoshikazu Kanazawa, Shigeharu Asao