Patents Examined by Ieesha Gillis
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Patent number: 8274476Abstract: The present invention provides a computer cursor control system comprising a touchpad device and a cursor control program. The cursor control program displays a virtual pointer on a screen according to a finger's touch on the touchpad device and simultaneously moves a computer and the virtual pointer according to the finger's movement on the touch pad device. Finally, the compute cursor is moved to the virtual pointer's position responding to a switch signal generated by the touchpad device.Type: GrantFiled: November 3, 2008Date of Patent: September 25, 2012Assignee: Primax Electronics Ltd.Inventor: Chih-Hsien Wei
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Patent number: 8237555Abstract: A hazardous vehicle alert system comprising a control module, a special graphical user interface, a speed and distance detector, and an alarm module where the user sets alarm triggers based on reaction time until potential impact from the hazardous vehicle. The user can assess the landscape, traffic patterns, and specifics of the task at hand to determine the required reaction time to take evasive maneuvers from the threat of on-coming hazardous vehicles and create alarm triggers to yield this reaction time. A software package is used to drive the graphical user interface, control module, alarm module, and detector module. The system includes modes ranging from one to four pieces and a mode that can be installed in a vehicle.Type: GrantFiled: October 9, 2009Date of Patent: August 7, 2012Inventor: Tom McCarthy
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Patent number: 8111218Abstract: A pixel, an organic light emitting display using the pixel, and a driving method thereof may compensate for degradation of an organic light emitting diode. The pixel includes the organic light emitting diode and a drive transistor that supplies an electric current to the organic light emitting diode. A pixel circuit compensates a threshold voltage of the drive transistor. A compensator controls the voltage of the gate electrode of the drive transistor in order to compensate a degradation of the organic light emitting diode.Type: GrantFiled: March 3, 2008Date of Patent: February 7, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventor: Sang-moo Choi
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Patent number: 8111219Abstract: A pixel including an OLED, the pixel including a first transistor coupled between a data line and a first node, the first transistor being turned on by a low signal on an i-th scan line, a second transistor coupled between a first power source and a fifth transistor, a third transistor coupled between the gate electrode of the second transistor and an electrode of the second transistor that is coupled to the fifth transistor, the third transistor being turned on by a low signal on an (i?1)-th scan line, a fourth transistor coupled between a first reference voltage and the first node, the fourth transistor being turned on by the low signal on the (i?1)-th scan line, a storage capacitor coupled between the first node and the second node, and a compensator controlling a voltage of the second node corresponding to degradation of the OLED.Type: GrantFiled: March 3, 2008Date of Patent: February 7, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventor: Yang-wan Kim
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Patent number: 8102343Abstract: A liquid crystal device includes a plurality of pixels disposed in the shape of a matrix of n rows×m columns (where n and m are natural numbers equal to or larger than two), n scanning lines, 2m data lines including pairs of a first data line and a second data line for each column of the plurality of pixels, and a data line driving circuit that generates a first gray scale voltage corresponding to higher bits acquired by dividing gray scale data of plural bits into the higher bits and lower bits and generates a second gray scale voltage corresponding to the lower bits. Each one of the plurality of pixels includes a first switching element and a second switching element which are controlled to be turned on or off by the common scanning lines, a first pixel electrode to which the first or second gray scale voltage is supplied from the first data line through the first switching element, and a second pixel.Type: GrantFiled: February 28, 2008Date of Patent: January 24, 2012Assignee: Seiko Epson CorporationInventor: Satoshi Yatabe
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Patent number: 8068084Abstract: A timing controller includes a receiver and a clock generator connected to output terminals of the receiver. The clock generator receives an external clock signal through the receiver and periodically modulates a frequency of the external clock signal to generate a modulation clock signal that is used to process a plurality of pixel data. The clock generator controls a delay time of the modulation clock signal based on a modulation rate of the frequency of the modulation clock signal. According to the timing controller, circuit blocks connected to output terminals of the clock generator are operated by the modulation clock signal. Thus, the circuit blocks operated by the delayed modulation clock signal may be prevented from malfunction due to electromagnetic interference.Type: GrantFiled: October 1, 2008Date of Patent: November 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Jang-Hyun Yeo
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Patent number: 7982756Abstract: A timing controller is provided. The timing controller comprises a data analyzer, a gain processor, an operator unit and an original gamma voltage generator. The present invention utilizes the data analyzer to analyze a gray level distribution of video data, and then the gain processor selects a gain value. The operator unit converts an original gamma voltage produced by the original gamma voltage generator into an actual gamma voltage according to the gain value. Therefore, the present invention adaptively adjusts the gamma voltage according to the gray level distribution of the video data for increasing display quality.Type: GrantFiled: February 18, 2008Date of Patent: July 19, 2011Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chih-Sheng Chou, Pi-Lun Chang, Hung-Hsiang Chen
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Patent number: 7969394Abstract: A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.Type: GrantFiled: February 25, 2008Date of Patent: June 28, 2011Assignee: Sony CorporationInventors: Katsuhide Uchino, Tetsuro Yamamoto, Junichi Yamashita