Patents Examined by Richard Hjerpe
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Patent number: 8149214Abstract: A method, medium and apparatus browsing images is disclosed. The method browsing images includes sensing acceleration imparted to a portable digital device, and moving an image onto a display area in accordance with a tilt angle of the portable digital device if the sensed acceleration is greater than a first threshold value.Type: GrantFiled: May 3, 2007Date of Patent: April 3, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-jung Cho, Chang-kyu Choi, Kwang-hyeon Lee, Yeun-bae Kim
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Patent number: 8149230Abstract: A light emitting display includes a substrate, a pixel area, a first power source line to supply a first power signal to each pixel on a first side of the pixel area, a second power source line to supply the first power signal to each pixel on a second side of the pixel area, and an impedance compensator for compensating a difference in a voltage drop between the first power source line and the second power source line. A voltage drop caused by line resistance that depends on the length of the first and second power source line that supply the first power signal to a lower and upper side of a pixel area, respectively, is equalized, thereby minimizing the voltage drop of the first power signal supplied to all pixels, and minimizing non-uniformity of brightness due to the voltage drop differences at each pixel.Type: GrantFiled: July 21, 2005Date of Patent: April 3, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Kyoung Soo Lee, Ki Myeong Eom, Jin Hyun Choi
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Patent number: 8149184Abstract: The initial color temperature setting can change when a plasma display panel (PDP) is driven for a long period of time. One cause is due to the non-uniform deterioration of red, green, and blue fluorescent materials due to the ultraviolet rays discharged during operation of the panel. Color temperature correction is performed by setting the numbers of discharge pulses for fluorescent materials in accordance with a discharge pulse number correction curve with respect to the cumulative elapsed driven time of the PDP.Type: GrantFiled: March 4, 2009Date of Patent: April 3, 2012Assignee: Hitachi, Ltd.Inventors: Hidenao Kubota, Hirofumi Sakamoto, Masahiko Umeda, Masatoshi Sudo
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Patent number: 8144102Abstract: The present invention provides a memory element includes a thin film transistor configured to have a semiconductor thin film and a pair of gate electrodes that vertically sandwich the semiconductor thin film with intermediary of insulating films therebetween, and a capacitor configured to be connected to a first gate electrode of the pair of gate electrodes, wherein data is stored in the capacitor connected to the first gate electrode, and data stored in the capacitor is read out by controlling a second gate electrode of the pair of gate electrodes.Type: GrantFiled: October 9, 2008Date of Patent: March 27, 2012Assignee: Sony CorporationInventor: Makoto Takatoku
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Patent number: 8144124Abstract: An optical scrolling module includes a prism, a light source, an image sensor and a first condenser. The prism is disposed at an opening of an upper shell of a mouse and has a light incident surface, a reflective surface, a contact surface and a light emitting surface. The contact and light incident surfaces are respectively connected between the reflective and light emitting surfaces. The contact surface is exposed by the opening. A light beam from the light source is transmitted to the contact surface via the light incident and reflective surfaces. When an object with a pattern structure puts on the contact surface, the light beam is scattered and a portion of the light beam is transmitted to the image sensor via the first condenser. When the object is removed from the contact surface, the light beam is reflected to the light emitting surface by the contact surface.Type: GrantFiled: May 22, 2008Date of Patent: March 27, 2012Assignee: Pixart Imaging Inc.Inventors: Hui-Hsuan Chen, Hung-Ching Lai, Tien-Chia Liu
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Patent number: 8144087Abstract: Disclosed herein is a color LED driver, which is capable of being implemented by a compact structure without a feedback structure and accompanying a small size and low cost, by directly connecting a negative temperature coefficient (NTC) thermistor to a driving current path of a color LED applied to an LCD backlight to compensate a characteristic variation of the LED due to a variation in a temperature.Type: GrantFiled: September 27, 2010Date of Patent: March 27, 2012Assignee: Samsung LED Co., Ltd.Inventor: Dong Woo Lee
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Patent number: 8144082Abstract: The present invention relates to a method and apparatus for driving a plasma display panel that can be driven at a low voltage and prevent undesired discharge from being generated under high temperature environment.Type: GrantFiled: October 22, 2007Date of Patent: March 27, 2012Assignee: LG Electronics Inc.Inventors: Sang Jin Yoon, Eung Chul Park, Bong Koo Kang, Jung Gwan Han
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Patent number: 8144121Abstract: An apparatus for controlling an electronic appliance having a display is provided. A plurality of control buttons are displayed on the display. An operator in front of the display is photographed with a video camera and is displayed on the display. The operator holds his or her hand to specify one of the control buttons on the display. The control buttons are provided with numbers or marks according to the order of priority. A feature detector of the apparatus detects various features from the photographed image. According to the features, a controller of the apparatus selects one of the control buttons on which the hand of the operator is superimposed and carries out an operation corresponding to the selected control button with respect to the electronic appliance.Type: GrantFiled: October 10, 2007Date of Patent: March 27, 2012Assignee: Victor Company of Japan, LimitedInventor: Masahiro Kitaura
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Patent number: 8139022Abstract: High quality images on liquid crystal panel can be obtained alleviating variations of the brightness and color among regions, in which backlight is divided when emission luminance of the backlight is controlled in each region based on image signal. A backlight device is divided into multiple regions, and has a configuration in which light emitted from a light source of each of the regions is allowed to leak to other regions. A maximum gradation detector detects a maximum gradation of a regional image signal displayed on each of the regions of the liquid crystal panel. An image gain calculator obtains a gain to be multiplied to each regional image signal by using luminance bitmap held by luminance bitmap memory. An emission luminance calculator obtains an emission luminance of light to be emitted by each light source.Type: GrantFiled: September 8, 2008Date of Patent: March 20, 2012Assignee: Victor Company of Japan, LimitedInventor: Yoshinori Ohshima
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Patent number: 8139015Abstract: An amplification circuit includes: an amplifier apparatus configured to amplify an input signal and outputting the amplified signal from an output terminal; and a boost circuit which, when a difference between a voltage of the input signal and a voltage at the output terminal is greater than a given value, supplies a positive or negative constant electrical current to at least one given part of the amplifier apparatus, thus enhancing output responsiveness of the amplifier apparatus.Type: GrantFiled: December 15, 2006Date of Patent: March 20, 2012Assignee: Sony CorporationInventors: Keiko Kawaguchi, Koji Tsukamoto
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Patent number: 8139028Abstract: A proximity sensor device and method is provided that facilitates improved system usability. Specifically, the proximity sensor device and method provide a user with the ability to easily cause different results in an electronic system using a proximity sensor device as a user interface. For example, it can be used to facilitate user interface navigation, such as dragging and scrolling. As another example, it can be used to facilitate value adjustments, such as changing a device parameter. In general, the proximity sensor device is adapted to distinguish between different object combination motions, determine relative temporal relationships between those motions, and generate user interface results responsive to the motions. This allows a user to selectively generate different results using the motion of two different object combinations.Type: GrantFiled: December 19, 2006Date of Patent: March 20, 2012Assignee: Synaptics IncorporatedInventor: Andrew I. Warren
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Patent number: 8139020Abstract: A backlight device is divided into multiple regions, and has a configuration in which light emitted from a light source of each of the regions is allowed to leak to other regions. A maximum gradation detector detects a maximum gradation of a regional image signal displayed on each of the regions of the liquid crystal panel. An image gain calculator obtains a gain to be multiplied to each regional image signal. An emission luminance calculator obtains an emission luminance of light to be emitted by each light source, by using an operation expression according to the emission luminance of light to be emitted by the backlight device. At this time, if the emission luminance takes a negative value as a result of calculation, the emission luminance calculator makes a correction so that the emission luminance can take a value equal to or greater than 0.Type: GrantFiled: March 12, 2008Date of Patent: March 20, 2012Assignee: Victor Company of Japan, LimitedInventor: Yoshinori Ohshima
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Patent number: 8139030Abstract: The use of magnetic field sensing to perform sophisticated command control and data input into a portable device is disclosed. A magnetic field sensor is embedded or fixedly attached to a portable device to measure changes in the magnetic field strength and/or direction accompanying movement, motion or tilt of the device in one-, two- or three-dimensions when the portable device is used to air-write or make gestures.Type: GrantFiled: February 12, 2010Date of Patent: March 20, 2012Assignee: Memsic, Inc.Inventors: Yang Zhao, Pan Guozhi, Yu Jianping, Haidong Liu
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Patent number: 8139045Abstract: A display device having a multi-touch recognition function includes an integration module having a plurality of cameras integrated at an edge of a display panel; a look-up-table of a plurality of compensation angles in an range of about 0 to about 90 degrees corresponding to each of the plurality of cameras; and processor that detects a touch area using at least first and second images captured by the plurality of cameras, respectively, and compensates the detected touch area with one of the plurality of compensation angles.Type: GrantFiled: May 10, 2007Date of Patent: March 20, 2012Assignee: LG Display Co., Ltd.Inventors: Hyung Uk Jang, Sang Hyuck Bae, Yeon Shim Shim
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Patent number: 8139016Abstract: A method for improving the EMI performance of an LCD device is disclosed, adapting for a point-to-point transistor transistor logic interface of the LCD device. The disclosed method comprises the following steps: receiving a plurality of image data based on a data CLK signal; providing a first CLK signal and a second CLK signal to a plurality of source drivers by a timing controller, wherein the frequencies of the first CLK signal and the second CLK signal are smaller than the frequency of the data CLK signal, the phase of the first CLK signal is different from the phase of the second CLK signal; and the timing controller transmitting a plurality of first image data to the plurality of source drivers based on the first CLK signal, and the timing controller transmitting a plurality of second image data to the plurality of source drivers based on the second CLK signal.Type: GrantFiled: December 17, 2007Date of Patent: March 20, 2012Assignee: AU Optronics Corp.Inventor: Chien-Yu Yi
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Patent number: 8138995Abstract: A plasma display device includes the following elements: an image signal conversion circuit for converting an image signal into an image data; a data electrode driver circuit for driving data electrodes according to the image data; a power calculation circuit for calculating a power consumption of the data electrode driver circuit according to the image data; and a temperature calculation circuit for calculating a temperature of the data electrode driver circuit according to the image data. The image signal conversion circuit converts the image signal into an image data decreasing the power consumption of the data electrode driver circuit at least when the calculated power consumption exceeds a predetermined power threshold value, or when the calculated temperature exceeds a predetermined temperature threshold value.Type: GrantFiled: January 11, 2008Date of Patent: March 20, 2012Assignee: Panasonic CorporationInventors: Takeru Yamashita, Kazuki Sawa, Hiroko Yamamoto
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Patent number: 8139051Abstract: The present invention provides a driver, including: data lines disposed in parallel with each other; gate lines disposed in parallel with each other and at right angles to the data lines so as to be electrically insulated from the data lines; odd-numbered pixel cell connected to the odd-numbered data line from the head one, and the odd-numbered gate line from the head one; even-numbered pixel cell connected to the even-numbered data line from the head one, and the even-numbered gate line from the head one; driving means for driving the odd-numbered gate lines and the even-numbered gate lines independently of each other; inputting means for inputting a signal having a predetermined potential to each of the odd-numbered gate lines and the even-numbered gate lines; and comparing means for comparing potentials of the each adjacent odd-numbered data line and even-numbered data line with each other, and outputting a comparison result.Type: GrantFiled: January 22, 2008Date of Patent: March 20, 2012Assignee: Sony CorporationInventor: Naoki Ando
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Patent number: 8139001Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: GrantFiled: August 17, 2011Date of Patent: March 20, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anzai, Yu Yamazaki, Yoshifumi Tanada
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Patent number: 8134580Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.Type: GrantFiled: March 3, 2010Date of Patent: March 13, 2012Assignee: LG Display Co., Ltd.Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
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Patent number: 8134531Abstract: If the frequency of a clock signal is increased, the pulse width of a sampling pulse is decreased, and the amount of time for a video signal to be written to a source line is inadequate. Sampling pulses (sam) rise sequentially in synchronization with the rise of a start pulse (SP). As the start pulse (SP) rises, synchronized with the rise of clock signals (CK, CKB), the sampling pulses (sam) fall off sequentially, delayed by half the period of the clock signals (CK, CKB) for every step. As a result, the sampling pulses (sam) with a pulse width longer than one period of the clock signals (CK, CKB) are generated. In a period Ta, a desired video signal (VIDEO) is written to its corresponding source line. In this way, the time for half a period of the clock signal can be secured for writing to the source line.Type: GrantFiled: October 4, 2007Date of Patent: March 13, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Mitsuaki Osame, Aya Miyazaki