Patents Issued in August 6, 2013
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Patent number: 8502717Abstract: The invention provides a sound processing device. In one embodiment, the sound processing device comprises a first microphone, a first analog-to-digital converter, a second microphone, and a second analog-to-digital converter. The first microphone detects a first sound pressure to generate a first analog audio signal. The first analog-to-digital converter converts the first analog audio signal to a first digital audio signal. The second microphone detects a second sound pressure to generate a second analog audio signal. The second analog-to-digital converter converts the second analog audio signal to a second digital audio signal, encodes a third digital audio signal according to the second digital audio signal, receives the first digital audio signal and a clock signal, outputs data bits of the third digital audio signal when the clock signal oscillates to a logic low level, and outputs data bits of the first digital audio signal when the clock signal oscillates to a logic high level.Type: GrantFiled: January 31, 2011Date of Patent: August 6, 2013Assignee: Fortemedia, Inc.Inventors: Ching-Tzung Lin, Jui-Te Chiu, Yann-Ming Way, Ming-Yung Shih, Kuo-Hsuan Chang
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Patent number: 8502718Abstract: The invention provides an analog-to-digital converter. In one embodiment, the analog-to-digital converter receives a first audio signal from a microphone sensor, and receives a first channel selection signal and a clock signal, and comprises a toggle detection module, a first data processing module, a second data processing module, and a multiplexer. The toggle detection module detects whether the first channel selection signal is toggling between a logic low level and a logic high level to generate a control signal. The first data processing module processes the first channel selection signal to generate a second channel selection signal. The second data processing module converts the first audio signal from analog to digital to generate a second audio signal.Type: GrantFiled: January 31, 2011Date of Patent: August 6, 2013Assignee: Fortemedia, Inc.Inventors: Jui-Te Chiu, Ching-Tzung Lin
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Patent number: 8502719Abstract: A continuous-time sigma-delta analog-to-digital converter includes a first integrator stage to integrate a difference between a first differential signal derived from a differential analog input signal and a second differential signal derived from a quantized output signal, a quantizer and a low pass filter. The first integrator stage has a differential operational amplifier, first, second, third, and fourth input resistors, and a first pair of integrating capacitors. The differential analog input signal is received at first and second input nodes of the converter. The first and third input resistors are coupled in series between the first input node and a first input of the operational amplifier. The second and fourth input resistors are coupled in series between the second input node and a second input of the operational amplifier. The first and second input resistors are coupled to the third and fourth input resistors, respectively.Type: GrantFiled: January 20, 2012Date of Patent: August 6, 2013Assignee: MediaTek Singapore Pte. Ltd.Inventors: Michael A. Ashburn, Jr., Jeffrey Carl Gealow
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Patent number: 8502720Abstract: A digital to analog conversion apparatus includes a plurality of gain/phase adjusters configured to receive a digital signal and to output a plurality of adjusted digital input signals, a plurality of digital to analog converters coupled to respective ones of the plurality of gain/phase adjusters and configured to receive the adjusted digital input signals and to generate respective analog signals representative of the adjusted digital input signals, a plurality of phase shift elements coupled to respective ones of the plurality of digital to analog converters and configured to shift the phases of the analog signals generated by the digital to analog converters, and a combiner coupled to the outputs of the plurality of digital to analog converters and configured to combine the respective phase-shifted analog signals to form an analog output signal.Type: GrantFiled: April 3, 2012Date of Patent: August 6, 2013Assignee: Telefonaktiebolaget L M EricssonInventor: Mark Wyville
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Patent number: 8502721Abstract: An apparatus, protocol and methods for reducing vehicle energy consumption and for precise electronic event control, by implementing full CPU off-loading, using pulse-width modulation (PWM) with analog feedback diagnosis enabling real-time operation. Accordingly, analog feedback is used for external integrated circuits (IC) controlled by a PWM output, for processes to be analyzed. The apparatus includes a microprocessor that integrates an autonomous PWM module and an analog-to-digital converter (ADC) group manager, each including register modules for enabling analog-to-digital signal conversion comparisons of PWM feedback data, and generating of an interrupt command when required, and more specifically to automatically initiate transfer of data from the ADC to memory responsive of an interrupt trigger. As may be necessary the output of the ADC is calibrated or otherwise scaled to enable proper operation.Type: GrantFiled: April 30, 2012Date of Patent: August 6, 2013Assignee: Scaleo ChipInventors: Khaled Douzane, Pascal Jullien, Farid Tahiri
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Patent number: 8502722Abstract: An analog-to-digital converting (ADC) apparatus is disclosed. The ADC apparatus includes a coarse comparing module, at least one pre-switching detection module, at least one fine comparing module, and an encoder. The coarse comparing module compares an input signal and a plurality of first reference signals to generate a previous comparing result and a coarse comparing result in sequence. The pre-switching detection module generates a plurality of previous selecting signals according to the received previous comparing result. The encoder generates a previous encoding result according to the coarse comparing result. The fine comparing module selects a selected reference signal to be compared with the input signal from a plurality of second reference signals according to the previous selecting signals and the previous encoding result, so as to generate a fine comparing result.Type: GrantFiled: March 2, 2012Date of Patent: August 6, 2013Assignee: Industrial Technology Research InstituteInventor: Bo-Wei Chen
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Patent number: 8502723Abstract: A method and an apparatus for evaluating weighting of elements of a DAC and a SAR ADC using the same are provided. An equivalent weighting of each composed element is obtained by adding a reference element with a reference weighting, an auxiliary DAC, and a search circuit into the SAR ADC, and the equivalent weighting is represented by the reference weighting. The SAR ADC can calculate and then obtain a correct digital output by using the calibrated equivalent weighting and the successive approximation result of each input signal. The present disclosure prevents the necessity of matching each composed element of the DAC in the SAR ADC.Type: GrantFiled: December 27, 2011Date of Patent: August 6, 2013Assignee: Industrial Technology Research InstituteInventors: Hung-I Chen, Chang-Yu Chen, Xuan-Lun Huang, Jiun-Lang Huang
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Patent number: 8502724Abstract: To provide a semiconductor device including an A/D converter circuit that is capable of performing A/D conversion with high accuracy and high resolution and that can be reduced in size. One loop resistance wiring is shared by a plurality of power supply switches and a plurality of output circuits, and a reference voltage having a triangular (step-like) wave generated using the resistance wiring and the plurality of power supply switches is utilized. Thus, high-accuracy digital signals can be obtained using such an A/D converter circuit that can be reduced in size as an output circuit, without using a complicated circuit structure. Further, the number of constituent elements of the A/D converter circuit is small, whereby in the case of providing A/D converter circuits in parallel, variation between the A/D converter circuits can be made small.Type: GrantFiled: March 28, 2012Date of Patent: August 6, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yoshiyuki Kurokawa
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Patent number: 8502725Abstract: A motion controlled vehicle power adapter with a vehicle power adapter that can be plugged into the 12V vehicle power outlet and has a remote motion sensor at one end of the vehicle power adapter opposite the end that plugs into the 12 V vehicle power outlet. The remote motion sensor is operated by the operator's hand motion near the sensor without contacting the sensor. The remote motion sensor may be detachable from the vehicle power adapter. The operator's hand motions are translated into control signals and sent to a portable electronic device to control its functions. The control signals may be sent through a wire or wirelessly through a wireless transmitter.Type: GrantFiled: August 3, 2010Date of Patent: August 6, 2013Assignee: Ever Win International CorporationInventor: Yasuhiro Yamamoto
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Patent number: 8502726Abstract: A system and method for suppressing radio frequency (“RF”) transmissions includes a transmitter for transmitting electronic signals that suppresses (e.g., prevents, disrupts, jams, interferes with or otherwise disables) RF transmissions. Some embodiments of the invention include a transmitter that suppresses one or more signals transmitted from a target transmitter in an RF transmission system to a target receiver in a wireless device operating in the RF transmission system to prevent, disrupt, jam, interfere with or otherwise disable an RF transmission between the target transmitter and the target receiver in the wireless device (i.e., target wireless device). These systems and methods may be used to interrupt communication, command and control of non-friendly combatant. These systems and methods may also be used to suppress RF transmissions to prevent the detonation of improvised explosive devices, or IEDs.Type: GrantFiled: June 4, 2012Date of Patent: August 6, 2013Assignee: Pegasus Global Strategic Solutions LLCInventors: Robert Haywood Brumley, II, Michael J. Reedy, Robert Haywood Brumley, III
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Patent number: 8502727Abstract: A method of correcting reflectivity measurements performed by a radar, such as a weather radar, includes a reflectivity measurement being associated with a resolution volume. The method includes acquiring the reflectivity measurement Zm corresponding to the current resolution volume, estimating the attenuation kc introduced by the cloud droplets, said estimating being carried out by using an average vertical profile of the cloud liquid water content, estimating the attenuation kg,O2 introduced by dioxygen, estimating the attenuation kg,H2O introduced by the water vapor, determining the total specific attenuation k of the non-detectable components taking into account the attenuation kc, the attenuation kg,O2 and the attenuation kg,H2O estimated in the preceding steps, and correcting the measured reflectivity taking into account the estimated total specific attenuation k. The method may be implemented by an onboard weather radar.Type: GrantFiled: May 28, 2011Date of Patent: August 6, 2013Assignee: THALESInventors: Olivier Pujol, Clémentine Costes, Jean-Paul Artis, Frédéric Mesnard, Henri Sauvageot, Alia Iassamen
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Patent number: 8502728Abstract: New systems and methodologies that use radio tomography for object tracking.Type: GrantFiled: September 11, 2009Date of Patent: August 6, 2013Assignee: University of Utah Research FoundationInventors: Sarang Joshi, Anthony Joseph Wilson, Neal Patwari
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Patent number: 8502729Abstract: Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.Type: GrantFiled: January 29, 2007Date of Patent: August 6, 2013Assignee: Lawrence Livermore National Security, LLCInventors: Richard R. Leach, Jr., Faranak Nekoogar, Peter C. Haugen
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Patent number: 8502730Abstract: A method detects a bird or an object flying level with a single wind turbine, using a device for radio wave detection of at least one bird or another flying object, in the form of at least one radar. The analog image from each radar is transformed into a digital image and an outer safety area and an inner safety area is defined for the image. A safety space for each radar is defined and an action is performed in the event of a detection within the safety areas.Type: GrantFiled: December 16, 2009Date of Patent: August 6, 2013Inventor: Henri-Pierre Roche
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Patent number: 8502731Abstract: A system and method of detecting moving targets comprises transmitting electromagnetic waves rays from a plurality of transmitters at sequential; receiving reflected waves into a plurality of receivers after each transmission; the compilation of the reflected waves from the plurality of receivers for each transmission representing a data frame; forming a signal that monitors changes between the two sets of frames; at least one processor operating to process and compare frames; forming a difference image using a back-projection algorithm; scanning the difference image using a constant false alarm rate (CFAR) window; the CFAR window scanning the entire difference image and identifying a list of points of interest and eliminating the sidelobe artifacts present in the difference image thereby creating CFAR images; processing the CFAR images using morphological processing to create a morphological image; determining the number of clusters present in the morphological image; using K-means clustering to indicate theType: GrantFiled: January 18, 2011Date of Patent: August 6, 2013Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Anthony Frank Martone, Kenneth Irving Ranney
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Patent number: 8502732Abstract: The subject matter disclosed herein relates to a system and method for acquiring signal received from space vehicles (SVs) in a satellite navigation system. In one example, although claimed subject matter is not so limited, information processed in acquiring a signal from a first SV may be used in acquiring a signal from a second SV.Type: GrantFiled: August 16, 2011Date of Patent: August 6, 2013Assignee: QUALCOMM IncorporatedInventor: Rayman Wai Pon
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Patent number: 8502733Abstract: An intelligent backhaul system is disclosed for deployment in the presence of existing radio systems. A backhaul system for co-channel deployment with existing licensed and unlicensed wireless networks, including conventional cellular backhaul radios, Common Carrier Fixed Point-to-Point Microwave Service, Private Operational Fixed Point-to-Point Microwave Service and other FCC 47 C.F.R. §101 licensed microwave networks is disclosed. Processing and network elements to manage and control the deployment and management of backhaul of radios that connect remote edge access networks to core networks in a geographic zone which co-exist with such existing systems or other sources of interference within a radio environment are also disclosed.Type: GrantFiled: February 10, 2012Date of Patent: August 6, 2013Assignee: CBF Networks, Inc.Inventors: Kevin J. Negus, James A. Proctor, Jr.
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Patent number: 8502734Abstract: The invention relates to a printed antenna comprising a ground plane, a substrate stacked to the ground plane, a metal deposit made on the substrate in order to form therein a resonating patch (3), and a means of supplying to excite the resonating patch, characterized in that the patch has dimensions that are adapted for the patch to be able to radiate in both upper electromagnetic modes TM02 and TM20, and in that the means of supplying makes it possible to excite the patch on an excitation point (4) arranged along the patch so that the patch resonates in a single of said upper electromagnetic modes, by inducing this way a dual-beam radiation diagram with, in the same plane orthogonal to the patch, two main misaligned and symmetric lobes in relation to the normal to the patch.Type: GrantFiled: January 29, 2009Date of Patent: August 6, 2013Assignee: Bouygues TelecomInventors: Eduardo Motta Cruz, Jean Philippe Dessarce, Mohamed Himdi, Franck Colombel
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Patent number: 8502735Abstract: An antenna system that includes one or more radiator packages on a first side of an antenna substrate and one or more support packages on a second side of the antenna substrate are provided. Embodiments of the present invention include antenna systems incorporating a plurality of radiator packages on a first side of the antenna substrate and a plurality of support packages on the second side of the antenna substrate. The radiator packages generally include a radiator element and an integrated circuit that are incorporated into a common package. The integrated circuit of the radiator package can comprise an amplifier and/or other electronic components. The support packages generally provide one or more additional electronic components. For example, a support package integrated circuit can provide a phase shifter, amplifier, and/or other electronic components. The antenna substrate generally incorporates electrical conductors for operatively interconnecting each radiator package to at least one support package.Type: GrantFiled: November 17, 2010Date of Patent: August 6, 2013Assignee: Ball Aerospace & Technologies Corp.Inventors: Peter J. Moosbrugger, Nathan A. Stutzke, Jennifer L. Erickson, Andrea K. Johnson
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Patent number: 8502736Abstract: An electronic device includes a multi-layer circuit board, a main antenna, and an electronic element. The multi-layer circuit board includes an outer layer, a ground layer, and a plurality of vias defined therein electrically connected the outer layer and the ground layer. The main antenna is mounted on the outer layer and electrically connected to the ground layer by the vias. The electronic element is mounted on the outer layer, soldered on the main antenna, and electrically connected to the ground layer by the main antenna.Type: GrantFiled: August 29, 2011Date of Patent: August 6, 2013Assignee: FIH (Hong Kong) LimitedInventors: Chin-Hung Ma, Chi-Sheng Liu, Shu-Hua Hsu
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Patent number: 8502737Abstract: A communication device which solves a new problem, that is, a power amplifier has oscillation caused by providing a conductive body which reduces the effects of the noise on a chip antenna, includes: a chip antenna which catches radio waves of a desired frequency; an RF circuit which is implemented on a printed wiring board and which converts received signals input from the chip antenna to a low frequency; a digital circuit which is implemented on the printed wiring board and which demodulates the received signals in a low frequency input from the RF circuit; a conductive body which is extended between the chip antenna and the digital circuit while being maintained at a certain height from the printed wiring board, and which has an end connected to a ground conductive body of the printed wiring board; and a radio wave absorption body which is attached to the conductive body.Type: GrantFiled: March 28, 2007Date of Patent: August 6, 2013Assignee: Kyocera CorporationInventors: Toshihiko Kawata, Shinichi Nakada, Masaki Noji
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Patent number: 8502738Abstract: An electronic device includes: a circuit substrate; and an antenna element installed on the circuit substrate, wherein the antenna element is installed at a position apart from an end of the circuit substrate by a given offset so that distribution variation of irradiation characteristics of the antenna element within a horizontal surface is reduced both in cases where the electronic device in which the antenna element is installed is set in portrait orientation and in landscape orientation.Type: GrantFiled: March 16, 2010Date of Patent: August 6, 2013Assignee: Sony CorporationInventor: Takayuki Hirabayashi
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Patent number: 8502739Abstract: An antenna arrangement including a ground plane having an electrical length; an antenna element positioned for coupling with the ground plane; a first conductive element; an interconnecting mechanism, connected to the ground plane and to the first conductive element, having a first configuration and a second configuration, wherein the ground plane has a first electrical length when the interconnecting mechanism is in the first configuration and a second electrical length, different to the first electrical length, when the interconnecting mechanism is in the second configuration.Type: GrantFiled: June 22, 2007Date of Patent: August 6, 2013Assignee: Nokia CorporationInventors: Jani Ollikainen, Harri A. Lasarov, Pekka Kilpi, Jussi Rahola, Lassi Hyvonen, Anssi Vanska, Joonas Krogerus
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Patent number: 8502740Abstract: A portable terminal includes a first case having one or more side surfaces, and configured such that a part of the side surfaces is removed, and an antenna installed in the first case, and having a conductive radiator and a dielectric carrier for supporting the radiator, wherein the carrier includes a protrusion for filling the removed part of the first case, and the radiator is formed to be extending to the protrusion.Type: GrantFiled: October 28, 2010Date of Patent: August 6, 2013Assignee: LG Electronics Inc.Inventors: Sungshin Kong, Sungkyun Kim
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Patent number: 8502741Abstract: A structure for adjusting electromagnetic wave (EM wave) penetration response includes a plurality of structure units and a dielectric substrate with an upper surface and a lower surface. The structure units are disposed on the upper surface and/or the lower surface. The structure unit consists of metal lines or complementary slits so as to enable an EM wave penetration response of the structure to include a pass band and a stop band. The frequency of the stop band is higher than that of the pass band. If a distance between the structure and an object with a high dielectric constant is longer than a predetermined distance, the pass band covers a radiation frequency of an antenna. If the distance between the structure and the object with the high dielectric constant is within the predetermined distance, the stop band covers the radiation frequency of the antenna.Type: GrantFiled: January 25, 2011Date of Patent: August 6, 2013Assignees: Industrial Technology Research Institute, National Sun Yat-sen UniversityInventors: Hung-Hsuan Lin, Chun-Yih Wu, Ken-Huang Lin, Hsin-Lung Su, Yi-Jen Wang
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Patent number: 8502742Abstract: An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.Type: GrantFiled: September 5, 2012Date of Patent: August 6, 2013Assignee: Harada Industry Co., Ltd.Inventors: Masashi Wakui, Akio Kamiya, Nobuo Arayama
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Patent number: 8502743Abstract: A system for transmitting radio frequency includes antenna elements configured to transmit radio frequency beams including a horizontal beam widths and vertical beam widths. The antenna elements are positioned to transmit radio frequency in directions to cover areas independent of each other. The system includes a port operatively coupled to the antenna elements to transmit power to the antenna elements to cause the antenna elements to transmit radio frequency in the respective directions. The antenna elements and the port form a distributed antenna system.Type: GrantFiled: December 5, 2007Date of Patent: August 6, 2013Assignee: Cricket Communications, Inc.Inventors: Judson Kyle Ownbey, Scott Clemons
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Patent number: 8502744Abstract: A reflector assembly implementable in a scanning antenna assembly having a stationary surface includes a support assembly coupled to the stationary surface, a substantially planar first reflector panel coupled to the support assembly so as to enable rotation of the first reflector panel about a central axis of the first reflector panel, and an actuator assembly comprising a translating arm coupled to the first reflector panel, wherein translational motion of the arm is operable to rotate the first reflector panel about the central axis back and forth through a predetermined angular range at a predetermined frequency.Type: GrantFiled: September 16, 2008Date of Patent: August 6, 2013Assignee: Honeywell International Inc.Inventors: Yi-Chi Shih, Long Bui, Tom Rolfer, Kiet Mai, Yaozhong Liu
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Patent number: 8502745Abstract: An antenna apparatus that may be adapted to various environments. The antenna apparatus includes a radiation unit to transmit and receive in a 360° radius including a plurality of radiators, each radiator configured to radiate a main emission pattern in different direction; and a switch unit configured to selectively operate each of the plurality of radiators.Type: GrantFiled: February 16, 2009Date of Patent: August 6, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Se Hyun Park, Byung Tae Yoon, Dong-Jin Kim, Seong-Ook Park, Rashid A. Bhatti, Viet Anh Nguyen, Mingoo Choi
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Patent number: 8502746Abstract: A planar directional antenna including a substrate, a metal layer, a master antenna, and an auxiliary antenna is provided. The substrate has a first surface and a second surface. The metal layer is disposed on the second surface of the substrate, and an upper edge of the metal layer forms a concave parabolic curve. The master antenna is disposed on the substrate and located within a predetermined range of the focus of the concave parabolic curve. The auxiliary antenna is disposed on the substrate and opposite to the master antenna so that the planar directional antenna generates a beam toward a radiation direction.Type: GrantFiled: November 16, 2009Date of Patent: August 6, 2013Assignee: HTC CorporationInventor: Huan-Chu Huang
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Patent number: 8502747Abstract: A dipole antenna assembly (100, 200) includes a dipole antenna (10, 30) and a feeding element (20, 40) connecting with the dipole antenna. The dipole antenna includes a radiation portion (12, 32), a ground portion (13, 33) and a circuit (14, 34). The feeding element includes a central conductor (21, 41) soldered on the radiation portion at a first position, and a shielding layer (23, 43) soldered on the ground portion at a second position. The circuit includes one end connecting with the radiation portion at the first position, and another end connecting with the ground position at the second position for impedance matching.Type: GrantFiled: October 18, 2010Date of Patent: August 6, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Sheng-Che Chang, Chang-Ching Lin, Chun-Chieh Tseng, Yun-Cheng Hou, John Chow
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Patent number: 8502748Abstract: A three-dimensional dual-band antenna including a first radiation portion, a second radiation portion, a connection portion, an impedance matching portion and a feeding portion is provided. The second radiation portion is located under the radiation portion and parallel with the first radiation portion. The connection portion is connected to the first side of the first radiation portion and extended downward vertically, for connecting the first radiation portion and the second radiation portion. The impedance matching portion is connected to a second side of the first radiation portion and extended downward vertically. The first side and the second side are opposite. The feeding portion is connected to the second side and extended downward vertically. The feeding portion receives a feeding signal. The first and the second radiation portion are operated at the first and the second bandwidth respectively, wherein the second bandwidth is in higher frequency than the first bandwidth.Type: GrantFiled: August 27, 2010Date of Patent: August 6, 2013Assignee: Arcadyan Technology CorporationInventors: Mao-Tse Liang, Shih-Chieh Cheng, Kuo-Chang Lo
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Patent number: 8502749Abstract: Sustain discharge is stably caused while power consumption is reduced, and image display quality is improved. A plasma display device has a plasma display panel, an electric power recovering circuit for raising or falling a sustain pulse by resonating an inductor and the inter-electrode capacity of a display electrode pair, and a sustain pulse generating circuit for alternately applying, to the display electrode pair, as many sustain pulses as the number corresponding to the luminance weight in the sustain period of a plurality of subfields that are disposed in one field and have initializing, address, and sustain periods. The sustain pulse generating circuit generates at least two kinds of sustain pulses including a first sustain pulse serving as a reference and a second sustain pulse that rises more gently than the first sustain pulse, and generates the first sustain pulse immediately after the second sustain pulse.Type: GrantFiled: November 12, 2008Date of Patent: August 6, 2013Assignee: Panasonic CorporationInventor: Naoyuki Tomioka
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Patent number: 8502750Abstract: The picture quality on a plasma display panel shall be improved when the contrast and/or the brightness are reduced. This is achieved by estimating the reduction of the dynamic occurring in the front-end of the data processing of the plasma display device and by compensating it in the back-end. Specifically, the gain and/or offset of the video input data are adjusted and the power level of the adjusted video data is measured. The resulting power level information is updated on the basis of an attenuation information. The updated power level is used for the power management and the level of the video data being reduced in the front-end is increased on the basis of the attenuation information. Thus, the dynamic of the video and, as a result, the picture quality are improved.Type: GrantFiled: February 16, 2008Date of Patent: August 6, 2013Assignee: Thomson LicensingInventors: Cédric Thebault, Carlos Correa, Sébastien Weitbruch
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Patent number: 8502751Abstract: A pixel circuit for use in a display comprising a plurality of pixels is provided. The load-balanced current mirror pixel circuit can compensate for device degradation and/or mismatch, and changing environmental factors like temperature and mechanical strain. The pixel circuit comprises a pixel drive circuit comprising, switching circuitry, a current mirror having a reference transistor and a drive transistor, the reference transistor and the drive transistor each having a first and second node and a gate, the gate of the reference transistor being connected to the gate of the drive transistor; and a capacitor connected between the gate of the reference transistor and a ground potential, and a load connected between the current mirror and a ground potential, the load having a first load element and a second load element, the first load element being connected to the first node of the reference transistor and the second load element being connected to the first node of the drive transistor.Type: GrantFiled: September 23, 2004Date of Patent: August 6, 2013Assignee: Ignis Innovation Inc.Inventors: Arokia Nathan, Kapil V. Sakariya, Peyman Servati, Shahin Jafarabadiashtiani
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Patent number: 8502752Abstract: A electro-optical apparatus includes: a plurality of unit circuits arranged to correspond to intersections of scanning lines and data lines; a scanning line driving circuit; and a data line driving circuit. Each unit circuit includes: an electro-optical element which provides gradation corresponding to the data electric potential; a capacitor element which has a first electrode connected to a capacitor line and a second electrode connected to the data line; and a switching element. A second electrode of the capacitor element included in one of the plurality of unit circuits is connected to one wiring of the respective wirings included in the data line. The second electrode of the capacitor element included in another unit circuit is arranged in parallel with the one unit circuit along an extension direction of the data line and is connected to another wiring of the respective wirings included in the data line.Type: GrantFiled: March 24, 2010Date of Patent: August 6, 2013Assignee: Seiko Epson CorporationInventor: Toshiyuki Kasai
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Patent number: 8502753Abstract: An organic light emitting diode display is disclosed. The display includes a first semitransparent electrode, an organic emissive layer placed on the first semitransparent electrode, a second semitransparent electrode placed on the organic emissive layer, and a first selective reflection layer placed on the second semitransparent electrode.Type: GrantFiled: October 13, 2010Date of Patent: August 6, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seong Jeong, Sung-Soo Koh, Soon-Ryong Park, Woo-Suk Jung, Chul-Woo Jeong, Il-Ryong Cho, Tae-Kyu Kim, Jae-Yong Kim
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Patent number: 8502754Abstract: A method and a driving circuit for driving a current-driven active matrix organic light emitting diode (AMOLED) pixel are provided. A driving power source is used to pre-charge the capacitor before a current source charges/discharges a capacitor connected to a driving thin film transistor of the pixel. Therefore, an insufficient brightness problem during displaying a low gray can be solved.Type: GrantFiled: February 16, 2004Date of Patent: August 6, 2013Assignee: Au Optronics CorporationInventor: Chiao-Ju Lin
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Patent number: 8502755Abstract: A control method controlling a display panel comprising a pixel unit. The pixel unit is coupled to a data line and comprises a capacitor, a transistor, and a luminiferous device. The capacitor comprises a first terminal coupled to the data line and a second terminal coupled to the transistor. The voltage of the first terminal is increased and the voltage of the second terminal is reduced during a first period. The voltage of the first and the second terminals are controlled during a second period subsequent to the first period. The luminiferous device is lit according to the voltage of the capacitor during a third period subsequent to the second period. The voltage of the data line is maintained during the third period.Type: GrantFiled: June 20, 2008Date of Patent: August 6, 2013Assignee: Chimei Innolux CorporationInventors: Ping-Lin Liu, Du-Zen Peng
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Patent number: 8502756Abstract: An image display unit comprises a display area including pixels, and an imaging unit disposed at its rear side behind the display area. Light transmissive sections are located within the display area and correspond to the pixels. The light transmissive sections are configured to separately receive light incident upon the image display unit, and pass the received light to the imaging unit.Type: GrantFiled: October 13, 2010Date of Patent: August 6, 2013Assignee: Sony CorporationInventors: Kazuo Nakamura, Katsuhide Uchino, Jiro Yamada, Ken Tamayama, Hiroshi Sagawa
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Patent number: 8502757Abstract: An organic light emitting display (OLED) includes a voltage adjustment unit for adjusting a preliminary control voltage according to a second reference voltage, a couple unit for coupling a change of the preliminary control voltage to adjust a control voltage, a driving unit for providing a driving current and a driving voltage according to the control voltage, a first reset unit for resetting the driving voltage according to a first reference voltage, a second reset unit for resetting the control voltage according to the driving voltage, an organic light emitting diode for generating output light according to the driving current, and an emission enable unit for providing a control of furnishing the driving current to the organic light emitting diode. Through the circuit operation of the reset units and the voltage adjustment unit, occurrences of image retention phenomenon and pixel brightness distortion on the OLED screen can be avoided.Type: GrantFiled: November 15, 2011Date of Patent: August 6, 2013Assignee: AU Optronics Corp.Inventors: Chun-Yen Liu, Chia-Yuan Yeh, Cheng-Chieh Tseng
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Patent number: 8502758Abstract: Methods and displays are disclosed for presenting media content on display systems. A display is configured as an array of LEDs. The array of LEDs includes a first set of rows including first LEDs in a repeating pattern of a first color LED, a second color LED, and a third color LED. A second set of rows includes second LEDs in a repeating pattern of the first color LED, the second color LED, and the third color LED, wherein the second set of rows are interleaved between the first set of rows and the second LEDs are offset relative to the first LEDs. Visual content to be presented on the display includes a repeating sequence of four frames of an array of virtual pixels such that each virtual pixel of the array comprises at least one of the first LEDs and at least one of the second LEDs.Type: GrantFiled: December 10, 2009Date of Patent: August 6, 2013Assignee: Young Electric Sign CompanyInventors: Graham N. Beland, James Blake Gover, Clifford B. Brown, Brent W. Brown
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Patent number: 8502759Abstract: A method for driving a light modulation element includes: applying light to the light modulation element in accordance with an image to be displayed on the light modulation element while applying a DC voltage between a pair of electrode layers of the light modulation element; and applying a pulse voltage having an opposite polarity to the DC voltage applied so far between the pair of electrode layers with the light being applied, and terminating the applying of the light when the applying of the pulse voltage is terminated. The applying of the light, the applying of the pulse voltage and the terminating of the applying of the light are executed sequentially.Type: GrantFiled: September 5, 2007Date of Patent: August 6, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Taijyu Gan, Hiroshi Arisawa, Haruo Harada, Chisato Urano, Makoto Gomyo, Yasunori Okano
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Patent number: 8502760Abstract: The present invention provides a control circuit and a scanning method thereof, and can be applied to a color sequential liquid crystal display (LCD). The color sequential LCD produces a plurality of color backlights, receives a data signal, and receives a plurality of scanning signals produced by a scan driving circuit. The voltage levels of the plurality of scan signals corresponding to each of the color backlights are select levels alternately. When the voltage level of a scan signal in the plurality of scan signals is the select level, the voltage levels of the other scan signals in the plurality of scan signals are non-select levels. Because the voltage levels of the plurality of scan signals corresponding to each of the color backlights are select levels alternately to scan sequentially the same backlight, color-mixing effects on images can be reduced.Type: GrantFiled: October 20, 2008Date of Patent: August 6, 2013Assignee: Sitronix Technology Corp.Inventor: Chia-Jung Lin
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Patent number: 8502761Abstract: The invention relates to a transparent component (100) comprising active members (10) that are juxtaposed in parallel to a surface of the component, and that are each switchable between a transparent state and a reflecting state. Each active member establishes a light path between a light passage opening and a side of the component when said active member is reflecting. An addressing system (2) further controls the switching of the active members so that a reduced number of active members is simultaneously reflecting. Therefore, an image formed by transparency through the component thus appears permanently and continuously. Such a transparent component can be used for making an image superimposition device and an image display and storage device.Type: GrantFiled: January 8, 2009Date of Patent: August 6, 2013Assignee: Essilor InternationalInventors: Christian Bovet, Jean Paul Cano
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Patent number: 8502762Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.Type: GrantFiled: March 30, 2004Date of Patent: August 6, 2013Assignee: Sharp Kabushiki KaishaInventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
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Patent number: 8502763Abstract: The invention features electronic skin including an active layer formed of bistable cholesteric liquid crystal material and articles comprising the skin, the electronic skin having uniform gray scale reflectivity. Also featured is method for producing suitable reduction pulses that will provide a display (e.g., the electronic skin) with uniform gray scale reflectivity. Reduction pulses of narrow width are used to create uniform levels of gray in the electronic skin to overcome display imperfections that cause discontinuity in the gray scale reflectivity.Type: GrantFiled: October 10, 2011Date of Patent: August 6, 2013Assignee: Manning Ventures, Inc.Inventors: Duane W. Marhefka, Nithya Venkatataman, Sankar Barua
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Patent number: 8502764Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.Type: GrantFiled: January 31, 2011Date of Patent: August 6, 2013Assignee: AU Optronics CorporationInventors: Wen-Fa Hsu, Chien-Yu Yi
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Patent number: 8502765Abstract: A liquid crystal display includes a plurality of pixels, each of which includes a thin film transistor (TFT), a gate line supplying a driving signal to a gate of the TFT of each pixel, a liquid crystal capacitor included in each pixel and connected to one terminal of the TFT in a corresponding pixel, a sub-capacitor line aligned in parallel to the gate line, a sub-capacitor included in each pixel and connected between one terminal of the TFT in a corresponding pixel and the sub-capacitor line, and a driving circuit having at least four voltages, selecting one of the voltages and supplying the selected voltage to the sub-capacitor line to drive the liquid crystal display in a state in which the liquid crystal capacitor is capacitively coupled to the sub-capacitor.Type: GrantFiled: October 30, 2007Date of Patent: August 6, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ryoichi Yokoyama, Michiru Senda
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Patent number: 8502766Abstract: A flat display panel and an active device array substrate and a light-on testing method thereof are provided. The active device array substrate comprises a plurality of first pixel units, a plurality of second pixel units, a first light-on testing circuit, a second light-on testing circuit and a plurality of sets of signal lines. The first light-on testing circuit and the second light-on testing circuit disposed in a peripheral circuit region of the active device array substrate are electrically connected with the first pixel units and the second pixel units disposed in a display region of the active device array substrate respectively. Each two adjacent sets of signal lines disposed in the peripheral circuit region of the active device array substrate are alternatively electrically connected to the first pixel units or the second pixel units respectively.Type: GrantFiled: December 30, 2008Date of Patent: August 6, 2013Assignee: E Ink Holdings Inc.Inventors: Yi-Syuan Jiang, Wei-Lun Su