Patents Examined by Randal Willis
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Patent number: 7903070Abstract: An apparatus for driving a liquid crystal display device comprises a display area which includes a plurality of liquid crystal cells in portions defined by a plurality of gate and data lines; a gate driver which supplies overlapped gate pulses to the adjacent gate lines; a data driver which supplies a data voltage to the data line in synchronization with the gate pulse; and a timing controller which controls an overlapped section of the gate pulses supplied to the adjacent gate lines.Type: GrantFiled: December 19, 2006Date of Patent: March 8, 2011Assignee: LG Display Co., Ltd.Inventors: Su Hwan Moon, Tae Hwan Kim
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Patent number: 7872626Abstract: A display device has an array of display elements (2) each driven by an input provided on a data conductor (6). These inputs are generated by data conductor addressing circuitry (9) which has a plurality of controllable driver circuits (32,34,40), each for providing an input to an associated data conductor. The number of controllable driver circuits is at least one greater than the number required for providing data to all data conductors. A reference driver circuit (30) is used for calibrating at least one of the controllable driver circuits whilst the other controllable driver circuits provide inputs to the data conductors. This provides a reduction in the spread of driver circuit outputs by calibration of the driver circuits using a reference driver circuit.Type: GrantFiled: June 30, 2004Date of Patent: January 18, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Adrianus Sempel, Pieter J. Snijder
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Patent number: 7872635Abstract: A system for detecting and recording eye-tracking data by presenting to an observer a display image with an area in focus surrounded by blurred areas. The observer may shift the focus area within the image by head movements which are wirelessly transmitted to a receiver and used to modify the displayed image. This system solves that part of the eye-tracking problem that is most critical for measuring cognitive processes.Type: GrantFiled: May 14, 2004Date of Patent: January 18, 2011Assignee: Optimetrics, Inc.Inventor: Brian T. Mitchell
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Patent number: 7847754Abstract: The program of the present invention is an image processing program for causing a computer to display images using a plurality of display devices, wherein the image processing program causes the computer to perform the steps of: (a) dividing a virtual space into a plurality of areas; (b) associating display device selection information with each of the plurality of areas for selecting on which of the plurality of display devices an image is to be displayed; (c) judging in which of the plurality of areas a mobile object existing in the virtual space is positioned; (d) acquiring the display device selection information associated with the area in which the mobile object is positioned; and (e) displaying the mobile object in a display device corresponding to the display device selection information acquired at step (d) among the plurality of display devices.Type: GrantFiled: April 27, 2006Date of Patent: December 7, 2010Assignee: Kabushiki Kaisha SegaInventors: Akinori Nishiyama, Yukihiro Higashi, Takaya Yamane, Masato Shimizu
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Patent number: 7843425Abstract: A motion recognition system and method for controlling electronic devices are disclosed, in which at least a micro inertial sensor, each being arranged at a specific location of a human body, is used to detect and measure a motion of the body so as to correspondently obtain a plurality of gesture parameters, such as angular velocity and acceleration, etc., and then the detected parameters are analyzed and converted into an input gesture sequence by a specific algorithm to be compared with a predefined motion information sequence so as to enable any of the controlled electronic devices to perform a specific operation according to the result of the comparison. In addition, a momentum can be obtained by performing a calculation upon the detected gestured parameters with respect to time, which can be used for controlling the interaction of the controlled electric devices.Type: GrantFiled: October 13, 2006Date of Patent: November 30, 2010Assignee: Industrial Technology Research InstituteInventors: Ying-Ko Lu, Zhi-Wei Lian, Ming-Jye Tsai, Shun-Nan Liou
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Patent number: 7839394Abstract: Various electronic pen devices are disclosed herein. In one embodiment, an electronic pen with an improved ultrasound transducer (i.e. transmitter or receiver) is provided. In one embodiment an electronic pen with an improved ‘pen up/pen down’ detector is provided In one embodiment, an electronic pen with an improved structure for transmitting infrared light is provided. In one embodiment, an improved electronic pen that may be operated in pen mode or mouse mode is provided.Type: GrantFiled: January 8, 2007Date of Patent: November 23, 2010Assignee: Pegasus Technologies Ltd.Inventors: Isaac Zloter, Boris Gluzman, Gideon Shenholz
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Patent number: 7834831Abstract: A COG type LCD device and method are disclosed, which improve picture quality by minimizing driving voltage drop. The device according to an embodiment comprises an image area including a thin film transistor and a pixel electrode in a pixel region defined by gate and data lines crossing each other. A plurality of drive IC chips are formed using a COG (Chip On Glass) method in the periphery of the image display area. A LOG (Line On Glass) line is provided for cascading the plurality of drive IC chips to divide various signals inputted from an external driving circuit and to provide the divided signals to the respective drive IC chips. The LOG line includes analog and digital power lines. First and second switches are provided between the analog and digital power lines so as to temporarily short the analog and digital power lines.Type: GrantFiled: April 27, 2006Date of Patent: November 16, 2010Assignee: LG Display Co., Ltd.Inventor: Young Ok Kim
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Patent number: 7821512Abstract: In apparatus for generating an analog driving voltage, a ripple amplitude determining unit compares the analog driving voltage with a reference voltage to determine a ripple level of the analog driving voltage and an analog driving voltage generating unit adjusts an analog driving voltage level based on the determined ripple level. In an apparatus for generating a common electrode voltage, a common electrode voltage ripple detecting unit compares ripple amplitude of the common electrode voltage with a ripple reference voltage to generate a common electrode voltage control signal and a common electrode voltage generating unit controls the common electrode voltage level based on the common electrode voltage control signal. Therefore, the analog driving voltage and the common electrode voltage are adjusted to appropriate voltage levels for reducing current consumption and flicker.Type: GrantFiled: June 23, 2005Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Sang-Hak Yi
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Patent number: 7746295Abstract: There is provided a plasma display device capable of high luminous efficacy and stable driving for displaying images at various image display load factors. The plasma display device performs the sustain discharge for a light-emission display, and is configured to apply a sustain pulse voltage between a sustain electrode pair in a respective one of the plural discharge cells to generate a sustain discharge in a respective one of the following operating modes selected based upon use of the plasma display device: (a) generating a pre-discharge and then a main discharge; (b) generating a main discharge without a pre-discharge preceding the main discharge; and (c) switching between the mode (a) and the mode (b). The sustain voltage waveforms are used which compensate for an increase in voltage drop due to an increase in discharge current when the image display load factor is excessively increased.Type: GrantFiled: October 20, 2006Date of Patent: June 29, 2010Assignee: Hitachi, Ltd.Inventors: Kenichi Yamamoto, Keizo Suzuki, Masatoshi Shiiki, Kyoji Kariya, Tomokatsu Kishi, Tetsuya Sakamoto, Takashi Sasaki, Takayuki Shimizu
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Patent number: 7705865Abstract: The present invention discloses a display panel driving device and a driving method thereof, wherein the display panel driving device includes a plurality of mapping table units and a source driver. The mapping table units receive a plurality of primary color signals respectively, and convert grayscale levels of the primary colors into a plurality of mapping grayscale level values corresponding to a single gamma curve according to the grayscale level mapping relation between the single gamma curve and a plurality of primary color gamma curves. The source driver is electrically connected to the mapping table units to receive the mapping grayscale level values generated by the mapping table units, and convert the mapping grayscale level values into a plurality of driving voltages according to the relation between grayscale levels and voltages of the single gamma curve for inputting the driving voltages into a display panel.Type: GrantFiled: July 27, 2006Date of Patent: April 27, 2010Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Tien-Chu Hsu, Chih-Liang Wu
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Patent number: 7701419Abstract: A first group of data drivers is connected to a sub-field processor, a first power recovery circuit, and a PDP, and a second group of data drivers is connected to a sub-field processor, a second power recovery circuit, and a PDP. The first and second groups of data drivers apply to the PDP data pulses that differ in phases. The first and second power recovery circuits generate a voltage for generating the data pulses to the first and second groups of data drivers due to LC resonance, and discharge and recover charges to and from the PDP. Recovery potentials of recovery capacitors in the first and second power recovery circuits are changed depending on the number of times of switching between discharges and non-discharges of discharge cells in the PDP.Type: GrantFiled: June 23, 2004Date of Patent: April 20, 2010Assignee: Panasonic CorporationInventors: Hidehiko Shoji, Kazuo Oohira, Hironari Taniguchi
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Patent number: 7696989Abstract: The present invention is applied, for example, to a liquid crystal display apparatus in which drive circuitry is formed integrally on an insulating substrate, wherein processing results from circuit blocks 41A, 41B on the side of a higher power supply voltage are inputted into the side of a lower power supply voltage through active elements performing on-off operation complementarily, and by the fall of the power supply voltage on this higher side, the output of these active elements is set to a predetermined level.Type: GrantFiled: July 6, 2004Date of Patent: April 13, 2010Assignee: Sony CorporationInventors: Yoshitoshi Kida, Yoshiharu Nakajima
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Patent number: 7663575Abstract: A driving circuit for an organic light emitting display apparatus includes first and second switching elements and a driving element. The first switching element is controlled by a scan signal supplied from a scan line. The second switching element is controlled by the scan signal. The driving element provides an end of an organic electroluminescent element with a first reference voltage via the second switching element. The driving element has amorphous silicon thin film transistors so that the manufacturing cost of the organic light emitting display apparatus may be reduced.Type: GrantFiled: June 10, 2004Date of Patent: February 16, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Joon-Hoo Choi, In-Su Joo, Beohm-Rock Choi, Jong-Moo Huh
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Patent number: 7659879Abstract: A backlight driving circuit for an LCD device is disclosed, in which multiple high-voltage parts each having an inverter circuit are provided, and the plurality of high-voltage parts are dispersedly arranged at both rear sides of an LCD panel. The distribution of the high voltage parts obtains a uniform temperature dispersion in the LCD device, and the lifespan of the LCD is therefore enhanced.Type: GrantFiled: June 29, 2004Date of Patent: February 9, 2010Assignee: LG Display Co., Ltd.Inventors: Seung Jun Han, Seong Hyun Yun
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Patent number: 7656390Abstract: A position detecting device selects sensors arranged in the order of sensor 1, 2, 3, 4, 5, and 6 in an X-axis direction and a Y-axis direction. In a first selection pattern, the device selects a sensor in the order of sensor 1, 6, 2, 5, 3, and 4. In a second pattern, the device selects a sensor in the order of sensor 1, 6, 5, 2, 3, and 4. In a third pattern, the device selects a sensor in the order of sensor 1, 6, 2, 5, 4, and 3. In a fourth pattern, the device selects a sensor in the order of sensor 1, 6, 5, 2, 3, and 4. By selecting the sensors 1 to 6 in an order different from the order of the arrangement and communicating signals with a position pointer, the device detects the position pointed by the position pointer.Type: GrantFiled: October 11, 2005Date of Patent: February 2, 2010Assignee: WACOM Co., Ltd.Inventor: Yasuo Oda
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Patent number: 7649527Abstract: An image display system includes a light pen to generate light to input data, and a display panel to display images in response to the light provided from the light pen. The display panel includes a first substrate on which pixel electrodes are formed, a second substrate on which a common electrode are formed, and a photo-sensor formed on the first substrate. The photo-sensor detects the light provided from the light pen to generate a light detect signal. The image display system also includes a driving module to provide new image data to the display panel to display new images in response to the light detect signal from the photo-sensor.Type: GrantFiled: May 14, 2004Date of Patent: January 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Whan Cho, Sang-Jin Park, Jong-Woung Park, Myung-Woo Lee, Kee-Han Uh, Hyung-Guel Kim, Young-Jun Choi, Young-Bae Jung
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Patent number: 7633498Abstract: A display driver generates a respective charge pumping signal and respective driving signals synchronized to a respective same clock signal for each of the CPU and video interface modes. Because such respective signals are synchronized to a respective same clock signal, the noise superimposed on the driving signals applied on a display panel is regular and uniform across the whole display panel, for each of the CPU and video interface modes. Accordingly, affects of such regular noise are advantageously not noticeable to the human eye, for both the video and CPU interface modes of operation.Type: GrantFiled: November 12, 2004Date of Patent: December 15, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Sik Kang, Jae-Koo Lee, Jae-Hoon Lee
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Patent number: 7626564Abstract: An apparatus for driving an electroluminescence display panel having an icon area where predetermined icons are displayed according to input icon data and a dot-matrix area where variable images are displayed according to input dot-matrix data. A current that is discharged after the dot-matrix area is driven in each horizontal drive period is applied to at least one of driver power supply terminals of the icon area and the dot-matrix area.Type: GrantFiled: October 11, 2005Date of Patent: December 1, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jung-Kook Park, Il-Han Lee, Seung-Kyun Hong
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Patent number: 7616193Abstract: Provided is a human input apparatus and method for calculating a movement value thereof. The human input apparatus includes a plurality of touch sensors for varying and outputting output signals by direct contact, a sensing unit for receiving the output signals in parallel from the plurality of touch sensors and generating input data in response to the output signals, and a movement value calculating means for extracting valid input data from the input data and operating on and outputting a movement value using operated-on data comparing the valid input data with reference data and the reference data. Accordingly, a mechanical device mounted on the human input apparatus in order to express movement can be replaced by an electronic device employing the touch sensors, so that it is possible not only to prevent malfunction caused by noise or abrasion of a mechanical switch, but also to reduce power consumption and production cost. Further, it is advantageous for downsizing.Type: GrantFiled: October 6, 2005Date of Patent: November 10, 2009Assignee: ATLab Inc.Inventors: Chul-Yong Joung, Jae-Surk Hong, Bang-Won Lee, Young-Ho Shin
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Patent number: 7612786Abstract: User input methods may employ an input sensitive display screen that is agnostic with regard to the orientation in which the user is viewing the screen. Input methods may involve touching objects displayed on the screen, and movement of the objects may be determined by the release of a selected object, and a positional relationship involving the released and selected objects. A released object may automatically move towards, or away from, other selected objects. Alternatively, other selected objects may automatically move towards, or away from, the released object. Selection of objects may be performed in a sequence, and the particular sequence may help determine the direction of movement. Selection of multiple objects may be accomplished through a user simultaneously holding a finger over multiple objects, or a selection timer may be used to select multiple objects within a predetermined time. Gestures, such as a tilting of a finger on a display screen, may also determine movement characteristics.Type: GrantFiled: February 10, 2006Date of Patent: November 3, 2009Assignee: Microsoft CorporationInventors: Peter O. Vale, Duncan