Patents Issued in June 1, 2010
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Patent number: 7728878Abstract: A method processes a multiview videos of a scene, in which each video is acquired by a corresponding camera arranged at a particular pose, and in which a view of each camera overlaps with the view of at least one other camera. Side information for synthesizing a particular view of the multiview video is obtained in either an encoder or decoder. A synthesized multiview video is synthesized from the of multiview videos and the side information. A reference picture list is maintained for each current frame of each of the multiview videos, the reference picture indexes temporal reference pictures and spatial reference pictures of the acquired multiview videos and the synthesized reference pictures of the synthesized multiview video. Each current frame of the multiview videos is predicted according to reference pictures indexed by the associated reference picture list.Type: GrantFiled: July 12, 2006Date of Patent: June 1, 2010Assignee: Mitsubishi Electric Research Labortories, Inc.Inventors: Sehoon Yea, Emin Martinian, Anthony Vetro, Jong Dae Oh, Serdar Ince
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Patent number: 7728879Abstract: Photographed images from a front camera and a side camera respectively installed at the front and left side of a vehicle are respectively converted into bird's-eye view images, and a synthetic bird's-eye view image is displayed which is obtained by synthesizing the bird's-eye view images. Based on a difference image between the front and side cameras, a difference region where a solid object is drawn is detected from a common region where the both bird's-eye view images overlap. Then, based on position of each pixel forming the difference region, it is evaluated which of the front and side cameras captures the solid object better, and an image of the common region in the synthetic bird's-eye view image is formed based on the image obtained from one of the cameras.Type: GrantFiled: August 21, 2007Date of Patent: June 1, 2010Assignee: Sanyo Electric Co., Ltd.Inventor: Yohei Ishii
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Patent number: 7728880Abstract: Automatic white balance of captured images can be performed based on a gray world assumption. Initially, a flat field gray image is captured for one or more reference illuminations. The statistics of the captured gray image are determined and stored for each reference illumination during a calibration process. For each subsequent captured image, the image is filtered to determine a subset of gray pixels. The gray pixels are further divided into a one or more gray clusters. The average weight of the one or more gray clusters is determined and a distance from the average weights to the reference illuminants is determined. An estimate of the illuminant is determined depending on the distances. White balance gains are applied to the image based on the estimated illuminant.Type: GrantFiled: January 25, 2005Date of Patent: June 1, 2010Assignee: QUALCOMM IncorporatedInventors: Szepo (Bob) Hung, Ananthapadmanabhan Kandhadai, Andrew Chinchuan Chiu
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Patent number: 7728881Abstract: A color signal correcting method for correcting a color signal of each pixel outputted from a single-plate color image pickup element having a given color filter arrangement to correct a color reproduction error in an image, comprising the steps of: computing color signals of filter colors other than a filter color at the spatial location of a pixel to be corrected, wherein the other color signals at the spatial location are computed on the basis of color signals of a plurality of pixels of the same filter color located around the pixel to be corrected; and obtaining a correction value by multiplying the color signal of the pixel to be corrected and the computed other color signals by a predetermined correction coefficient and combining the products.Type: GrantFiled: October 27, 2005Date of Patent: June 1, 2010Assignee: Fujifilm CorporationInventor: Masaya Tamaru
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Patent number: 7728882Abstract: The present invention relates to interpolating a missing color value of a given pixel in an array of pixels. The missing color value is determined from color values of neighboring pixels using a median-based technique in which the median is taken of the four pixels values of the horizontally and vertically neighboring pixels (G1-G4) having a same color as the missing color value, and color information from at least one other color (R/B) at the given pixel.Type: GrantFiled: June 6, 2006Date of Patent: June 1, 2010Assignee: IPG Electronics 503 LimitedInventor: Cornelis Antonie Maria Jaspers
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Patent number: 7728883Abstract: A method for enabling an output device to emulate colors of a target camera includes the following steps: (a) utilizing the target camera to shoot a color chart to obtain a first plurality of output values respectively corresponding to a plurality of color patches of the color chart, (b) utilizing the output device to shoot the color chart to obtain a second plurality of output values respectively corresponding to the plurality of color patches of the color chart, (c) comparing the first plurality of output values with the second plurality of output values to deduce a color transform matrix, and (d) applying the color transform matrix in an image processing pipeline of the output device to enable the output device to emulate colors of the target camera.Type: GrantFiled: August 14, 2006Date of Patent: June 1, 2010Assignee: Primax Electronics Ltd.Inventor: Wei Hsu
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Patent number: 7728884Abstract: The present invention provides a white balance adjustment method and a digital image capturing device using the same. The method according to the present invention comprises the following steps: capturing an image; partitioning the image into one or more blocks; obtaining a first brightness value of each block; obtaining a second brightness value, a R value, a G value and a B value of each block; determining whether each block is a gray block according to the difference value between the first brightness and the second brightness values, the R value, the G value and the B value; and determining whether to proceed with a first white balance procedure or a second white balance procedure according to the quantity of the gray block(s).Type: GrantFiled: December 14, 2006Date of Patent: June 1, 2010Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Hsin-Hung Hsu
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Patent number: 7728885Abstract: A system for capturing and displaying images of subjects includes a digital camera and a slide show controller disposed in a common case. A subject can take his own picture using the digital camera. The resulting image is stored in an electronic folder with other images and all the images from the folder are distributed by a controller to several large displays.Type: GrantFiled: September 29, 2006Date of Patent: June 1, 2010Inventor: Mark van Schalkwyk
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Patent number: 7728886Abstract: An image recording apparatus has a color conversion mode in which it generates color conversion data for color conversion based on an input color which is a source color and an output color which is a destination color. Using the generated color conversion data, the apparatus performs color conversion processing on image data acquired by means of an imaging section. To make the generated color conversion data reproducible, the apparatus outputs the image data obtained through the color conversion processing, associated with color conversion information including, for example, the source color and destination color. The apparatus generates a data file containing, for example, the color conversion information and image data, and records it on a recording medium.Type: GrantFiled: February 15, 2006Date of Patent: June 1, 2010Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Ogawa
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Patent number: 7728887Abstract: Image data of a digital signal is inputted to a digital signal processor. A CPU reads out color correction coefficients from a ROM. Weights are added to the color correction coefficients based on information regarding transfer efficiency of a CCD image sensor such that the coefficients in a horizontal direction are set larger than those in a vertical direction. Further, an interpolation processor calculates horizontal and vertical components of R, G, and B colors of each pixel through color interpolation processing based on image data of each pixel and its peripheral pixels. A linear matrix circuit is controlled by the CPU and subjects the horizontal and vertical components to linear matrix operation using the color correction coefficients, thus subjecting each pixel data to color correction processing.Type: GrantFiled: June 27, 2007Date of Patent: June 1, 2010Assignee: FUJIFILM CorporationInventor: Toru Ueda
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Patent number: 7728888Abstract: A clamping circuit including: a subtracter for subtracting a clamping correction voltage from an input analog voltage signal; A/D converter for converting an analog voltage signal from the subtracter into a digital voltage signal of M bits; a potential difference detection circuit for detecting a potential difference between a digital voltage signal outputted from the A/D converter and a previously set clamping voltage; D/A converter for converting a digital signal of N (N<M) bits within the digital signal of M bits representing a potential difference outputted from the potential difference detection circuit into an analog signal; an adjusting voltage generation circuit for generating an adjusting voltage based on a potential difference outputted from the potential difference detection circuit and a threshold voltage set with respect to the potential difference; and an adder for adding together an output from the D/A converter and an adjusting voltage outputted from the adjusting voltage generation circuitType: GrantFiled: November 8, 2005Date of Patent: June 1, 2010Assignee: Olympus CorporationInventor: Makoto Ono
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Patent number: 7728889Abstract: The present invention relates to a method of driving a photosensitive device comprising a matrix of photosensitive pixels distributed at the intersections of rows and columns of the matrix. The invention relates more particularly to the control of such devices used for the detection of radiological images. The method consists in subjecting the matrix to an image cycle that includes a reset phase prior to an image acquisition phase. The rows of the matrix are distributed in several groups, and during the reset phase, the method consists in resetting all the rows in any one group simultaneously and in resetting each group of rows in succession.Type: GrantFiled: October 13, 2004Date of Patent: June 1, 2010Assignee: Trixell S.A.S.Inventors: Paul Apard, David Couder
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Patent number: 7728890Abstract: A photoelectric conversion film laminated color solid-state imaging apparatus comprising: a semiconductor substrate in which a first signal read circuit for a first color among the three primary colors, a second signal read circuit for a second color and a third signal read circuit for a third color are formed by MOS transistor circuits, and in which first and second photodiodes for respectively receiving incident light of the first and second colors are formed; a photoelectric conversion film provided above the semiconductor substrate, for receiving incident light of the third color to generate an optical charge; a longitudinal wiring for connecting a pixel electrode film attached to the photoelectric conversion film separately for each pixel to a contact part formed in the semiconductor substrate; and a potential barrier part between the contact part and the third signal read circuit, being formed on the semiconductor substrate.Type: GrantFiled: October 20, 2005Date of Patent: June 1, 2010Assignee: Fujifilm CorporationInventor: Nobuo Suzuki
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Patent number: 7728891Abstract: An image sensor includes a plurality of operation circuits. The operation circuit operates pixel signals read out from a group of pixels included in a readout area to generate a pixel signal in the thinning readout mode. A plurality of column selecting switches are arranged between the output terminals of the plurality of operation circuits and a plurality of output channels. A control circuit controls the plurality of column selecting switches such that pixel signals the number of which is equal to the number of the plurality of output channels are output to the plurality of output channels in parallel in the thinning readout mode. The circuit arrangements, each included in the corresponding one of the plurality of operation circuits and each viewed from the corresponding one of the column selecting switches used in the thinning readout mode, are equivalent to each other.Type: GrantFiled: March 19, 2007Date of Patent: June 1, 2010Assignee: Canon Kabushiki KaishaInventors: Hiroki Hiyama, Hideaki Takada, Yuichiro Hatano, Yu Arishima
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Patent number: 7728892Abstract: A CMOS imaging system with increased charge storage capacitance of pixels yet decreased physical size, kTC noise and active area. A capacitor is linked to the transfer gate and provides a storage node for a pixel, allowing for kTC noise reduction prior to readout. The pixel may be operated with the shutter gate on during the integration period to increase the amount of time for charge storage by a pixel.Type: GrantFiled: May 7, 2009Date of Patent: June 1, 2010Assignee: Aptina Imaging Corp.Inventors: Peter P. Altice, Jr., Jeffrey A. McKee
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Patent number: 7728893Abstract: Each pixel cell (12) of an image sensor (10) is made of a 4-Tr structure, in which only one Tr for resetting a column (X) is so added to an ordinary 3-Tr APS as to reset only an arbitrary pixel selectively, thereby to confine the pixel size. When a pixel signal is to be read, the period, for which the pixel signals composing an ordinary image of one frame are read, is finely divided so that the pixel signals of the pixels receiving an ID light for the period are read out bit by bit and repeatedly. At this time, for only the column being read, an electric current is fed to a read amplifier in the pixel cell (12) or a variable gain amplifier in an output unit (14), thereby to suppress the power consumption. As a result, a lower power consumption and a higher pixel formation can be attained in an image pickup device for picking up an image and for acquiring the ID information of a light beacon existing in the image pickup range.Type: GrantFiled: October 4, 2005Date of Patent: June 1, 2010Assignees: Japan Science and Technology Agency, National University Corporation Nara Institute of Science and TechnologyInventors: Keiichiro Kagawa, Yuki Maeda, Jun Ohta
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Patent number: 7728894Abstract: A CMOS image sensor having two ASPs can reduce increasing design difficulty as arising from a pixel array becoming larger and larger. The image sensor includes a selection circuit for transmitting outputs of CDS circuits through four divided buses to reduce parasitic loading and achieve high-speed operation. Then, the selecting circuit transmits red and blue pixels to a first ASP, and transmits green pixels to a second ASP, so as to relax the specification requirements of the ASP.Type: GrantFiled: March 5, 2007Date of Patent: June 1, 2010Assignee: NOVATEK Microelectronics Corp.Inventor: Kuo-Yu Chou
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Patent number: 7728895Abstract: A solid-state image sensing device includes: a plurality of unit pixels 21 arranged in rows and columns each of which outputs a pixel signal according to incident light; and a plurality of floating diffusion portions 22 each of which receives the pixel signals. Each of the floating diffusion portions 22 is shared by two unit pixels 21 which are respectively arranged in adjacent rows and which are respectively adjacent columns.Type: GrantFiled: July 11, 2006Date of Patent: June 1, 2010Assignee: Panasonic CorporationInventors: Shouzi Tanaka, Ryouhei Miyagawa, Kazunari Koga, Takahiro Muroshima, Kenji Watanabe
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Patent number: 7728896Abstract: A pixel circuit having a shared control line for providing two control signals to the pixel array. One control line is used to provide a control signal to both a high dynamic range circuit and a dual conversion gain circuit to two pixel circuits. The pixel circuits each contain two pixel cells that have separate photo-conversion devices but share readout circuitry.Type: GrantFiled: July 12, 2005Date of Patent: June 1, 2010Assignee: Micron Technology, Inc.Inventor: Jeffrey A. McKee
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Patent number: 7728897Abstract: A system and method for averaging incident light on plural pixels using a CMOS sensor is provided. The process includes resetting all pixels in a given region during a reset phase; and reading a voltage of a floating reset node as a function of time during a measurement phase. During the reset phase, an access select signal and a reset voltage are both high. The measurement phase begins when the access select signal is low and the reset voltage is still high. The system and method may be used to perform automatic exposure control and automatic white balancing operations.Type: GrantFiled: May 10, 2006Date of Patent: June 1, 2010Assignee: Biomorphic VLSI, Inc.Inventors: Mihail M. Milkov, David Standley, Amit Mittra
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Patent number: 7728898Abstract: A semiconductor device having a unit capable of temporarily storing electrical signals, may include an electrical signal generation unit, a first signal transmission unit electrically connected to the electrical signal generation unit, a first signal storage unit electrically connected to the first signal transmission unit, a second signal transmission unit electrically connected to the first signal storage unit, a second signal storage unit electrically connected to the second signal transmission unit, a reset unit electrically connected to the second signal storage unit, an amplification unit electrically connected to the second signal storage unit, a selection unit electrically connected to the amplification unit, and an output unit electrically connected to the selection unit, for stable signal processing.Type: GrantFiled: March 7, 2007Date of Patent: June 1, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Yun-hee Lee, Kang-bok Lee, Seok-ha Lee
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Patent number: 7728899Abstract: A CCD type solid-state image sensor (CCD) and an image pickup apparatus of this invention have an image pickup unit and a charge multiplier mounted, as separated from each other, on a packaging board, thereby reducing an influence of one of the image pickup unit and the charge multiplier on the other. Consequently, an improvement in yield is realized. With the image pickup unit and the charge multiplier mounted, as separated from each other, on the packaging board, the CCD type solid-state image sensor (CCD) and the image pickup apparatus are highly versatile also when a design change is made in one of the image pickup unit and the charge multiplier.Type: GrantFiled: October 3, 2005Date of Patent: June 1, 2010Assignee: Shimadzu CorporationInventors: Yasushi Kondo, Kunihiko Ohkubo
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Patent number: 7728900Abstract: Detection information is obtained from captured-image information of an imaging element array. An area is provided in an image capturing region in the imaging element array. In response to the obtained detection information, a pattern is generated which defines a ratio of a number of photosensor pixels used to capture an image to a number of all photosensor pixels in the area. The imaging element array is driven in accordance with the generated pattern. Interpolation responsive to a first picture signal generated by the used photosensor pixels in the area is implemented to generate a second picture signal corresponding to unused ones among all the photosensor pixels in the area. The first picture signal and the second picture signal are combined into a captured-image signal. The captured-image signal is outputted at a prescribed frame rate.Type: GrantFiled: February 5, 2007Date of Patent: June 1, 2010Assignee: Victor Company of Japan, Ltd.Inventors: Mariko Fukushima, Hiroyuki Miyahara
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Patent number: 7728901Abstract: The present invention provides a solid-state imaging device which compensates a field curvature which occurs due to an aberration of the optical imaging system and surely receive light incident with a wide angle. Each pixel (pixel size of 2.2 ?m square) in a solid-state imaging device includes a light-transmitting film with the first effective refractive index distribution and a light-transmitting film with the second effective refractive index distribution, a light-receiving element, a wiring, a wavelength selection filter, and a Si substrate. A pixel (1) is a pixel placed an approximate center of the solid-state imaging device. A pixel (n) is a pixel placed in the periphery of the solid-state imaging device, and a pixel (n-x) is a pixel that are placed between the pixel (1) and the pixel (n). The light-transmitting film of each pixel has approximately same effective refractive index distribution. ?0 which is a main light angle on the light-receiving element side, is approximately same.Type: GrantFiled: January 9, 2007Date of Patent: June 1, 2010Assignee: Panasonic CorporationInventors: Kazutoshi Onozawa, Motohiro Kojima
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Patent number: 7728902Abstract: An imaging device includes a photoreceptor portion including a plurality of photoreceptors arranged in an array, a microlens array including a plurality of microlenses, and a light shielding layer placed between the photoreceptor portion and the microlens array. The light shielding layer has apertures located corresponding to the plurality of photoreceptors. An optical relationship of an actual length d1 of an aperture width of the apertures on a side of the photoreceptors, an actual length p of a distance between adjacent microlenses, an equivalent air length t0 of a distance between vein and a top of the microlenses, and an equivalent air length t1 of a thickness between the top of the microlenses and an aperture position of the apertures on the side of the photoreceptors satisfies: 1.36 × t ? ? 1 p ? d ? ? 1 ? 2.4 × t ? ? 1 p + p × t ? ? 1 t ? ? 0 .Type: GrantFiled: August 2, 2007Date of Patent: June 1, 2010Assignee: Hitachi Maxell, Ltd.Inventors: Masahiro Kishigami, Nobuhiro Umebayashi
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Patent number: 7728903Abstract: A focus adjustment device includes: a first focus detection unit that detects a focus adjustment state for a subject image in a first focusing area; a second focus detection unit that detects a focus adjustment state in a second focusing area through a method different from a method adopted by the first focus detection unit; a judgment unit that makes a judgment as to whether or not the first focusing area and the second focusing area have a specific positional relationship; and a focus adjustment unit that executes focus adjustment based upon focus detection results obtained via the first focus detection unit and focus detection results obtained via the second focus detection unit when the judgment unit decides that the first focusing area and the second focusing area have the specific positional relationship.Type: GrantFiled: November 27, 2006Date of Patent: June 1, 2010Assignee: Nikon CorporationInventor: Naoyuki Ohnishi
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Patent number: 7728904Abstract: The disclosure is directed to techniques for automatic focus control. The automatic focus control techniques prioritize focus of a camera based on skin tone using a skin color detection approach which is intrinsically image sensor-dependent. Sensor-dependent skin color detection to support automatic skin tone prioritized focus control in a camera can enhance the focus of people in the scene. The techniques may be especially useful in digital video camera design, digital still photo camera design, and sensor applications involving people tracking. Sensor-dependent skin color detection is performed once a specific sensor is characterized by taking several raw images of a standard color test target in controlled illumination conditions. Sensor-dependent skin color detection can provide high detection precision and reliability. With sensor-dependent skin color detection, the focus of a camera can be automatically adjusted to prioritize regions of an image containing skin tones.Type: GrantFiled: April 11, 2006Date of Patent: June 1, 2010Assignee: QUALCOMM IncorporatedInventors: Shuxue Quan, Chinchuan Andrew Chiu, Xiaoyun Jiang
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Patent number: 7728905Abstract: This invention relates to an image capturing apparatus for illuminating and capturing an image of an object using reflected light therefrom, and is objective to a miniaturized construction and simplified assembly. A plurality of light-emitting devices is mounted around an image sensor, and a light guide member guides the light of the light-emitting devices to an image capturing region for illumination. The image capturing apparatus having the closely disposed image capturing system and illumination system, the miniaturized image capturing apparatus is assembled by pressing a projection of the light guide member to the lower end of the hood for cutting outside lights from the image capturing range and by pressing the upper end of the hood to the filter. Thus, it becomes possible to assemble with less adhesion points and improve working ability of assemble of the image capturing apparatus to make defect ratios of productions low and improve production efficiency.Type: GrantFiled: February 22, 2007Date of Patent: June 1, 2010Assignees: Fujitsu Limited, Fujitsu Frontech LimitedInventors: Hiroyuki Tanaka, Yoshio Yoshizu, Takashi Yoshida, Kouichi Matsuo, Isao Iwaguchi
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Patent number: 7728906Abstract: An apparatus includes a housing having an integrated camera. A panel is positioned in front of at least a portion of the camera and is operable to selectively switch between at least a substantially transparent state and at least a substantially opaque state.Type: GrantFiled: January 4, 2006Date of Patent: June 1, 2010Assignee: Apple Inc.Inventor: Brett Bilbrey
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Patent number: 7728907Abstract: A method (300) of converting interlaced Moving Picture Experts Group (MPEG) video signals to progressive video signals can include receiving an interlaced video signal representing a luma component specifying luma lines and a chroma component specifying chroma lines (310) wherein the chroma component can specify approximately one-half the number of lines of the luma component. The interlaced video signal can be decoded and the number of the chroma lines can be increased to approximately the same as the number of the luma lines (320). The number of chroma lines of the interlaced video signal then can be decreased (340), to substantially reverse the previous increase. The interlaced video signal then can be deinterlaced to produce a progressive video signal (350), which can be processed further (360) as needed.Type: GrantFiled: November 18, 2005Date of Patent: June 1, 2010Assignee: Thomson LicensingInventor: Donald Henry Willis
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Patent number: 7728908Abstract: According to the invention, a pull-down signal detecting apparatus includes: an interfield motion detecting module configured to determine whether or not an interfield motion between a first field signal and a second field signal exists by comparing a first counted number with a first threshold; an interframe motion determining module configured to determine whether or not an interframe motion between the first field signal and a third field signal exists by comparing a second counted number with a second threshold; a determination module configured to determine whether or not the video signal is pull-down signal based on the determination result of the interfield motion determining module and the interframe motion determining module; and a threshold control module configured to vary the first threshold, when the determination result of the interframe motion determining module corresponds with a second pull-down pattern and when the determination result of the interfield motion determining module does not corType: GrantFiled: February 26, 2009Date of Patent: June 1, 2010Assignee: Kabushiki Kaisha ToshibaInventor: Hideaki Tokutomi
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Patent number: 7728909Abstract: A method for compensating for perceived blur due to motion between a current frame and a previous frame of a digital video sequence comprises estimating a motion vector between the frames for each of a plurality of pixel blocks in the current and previous frames. A cluster motion vector is then estimated for each of a plurality of clusters of the motion vectors based on one of vectors in each cluster and motion vectors in proximate clusters. The cluster motion vector of its corresponding cluster is allocated to each pixel in the current frame. An initial guess frame is generated based on the current frame and pixels in the guess frame are blurred as a function of their respective allocated cluster motion vectors. Each blurred pixel is compared with a respective pixel in the current frame to generate an error pixel for each respective pixel.Type: GrantFiled: March 16, 2006Date of Patent: June 1, 2010Assignee: Seiko Epson CorporationInventor: Eunice Poon
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Patent number: 7728910Abstract: The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-frequency composite signal and a high-frequency composite signal. The low-frequency composite signal is a low-frequency luma signal. A 2D comb filter is utilized to separate the high-frequency composite signal into a high-frequency luma signal and the chroma signal. The luma signal is equal to the low-frequency luma signal plus the high-frequency luma signal. Therefore, the 2D YC separation device of the present invention can perfectly separate the composite signal so as to obtain a better luma signal and chroma signal. The YC separation system of the present invention further comprises a 3D YC separation device and a motion detection device, so as to obtain a precise luma signal and chroma signal.Type: GrantFiled: May 23, 2006Date of Patent: June 1, 2010Assignee: Himax Technologies, Inc.Inventor: Fang-Chen Chang
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Patent number: 7728911Abstract: A method detects whether a signal is present on each of a plurality of video inputs. The method positively indicates to a user whether a signal has been detected on each of the plurality of video inputs.Type: GrantFiled: January 26, 2005Date of Patent: June 1, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Reed H. Lacy, Guy C. Heagney
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Patent number: 7728912Abstract: A display system has a device for projecting a light beam and a display. The light beam includes encoded data. The display includes light sources selectively activated according to the encoded data received from the device.Type: GrantFiled: October 6, 2004Date of Patent: June 1, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daryl E. Anderson, Andrew L. Van Brocklin
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Patent number: 7728913Abstract: An electro-optical device comprising an image signal line that supplies an image signal to a sampling circuit, the image signal line extending from an image signal terminal, bypassing a data line driving circuit, and reaching the sampling circuit. The image signal line has a first straight line portion extending in one direction, a second straight line portion extending in another direction, and an intermediate wiring portion connecting the first straight line portion and the second straight line portion. An angle of a corner formed between the first straight line portion, the second straight line portion, and the intermediate wiring portion is an obtuse angle. The intermediate wiring portion is wired to pass around a vertical conduction terminal. Detailed information on various example embodiments of the inventions are provided in the Description of Exemplary Embodiments below, and the inventions are defined by the appended claims.Type: GrantFiled: July 14, 2006Date of Patent: June 1, 2010Assignee: Seiko Epson CorporationInventor: Hiroaki Mochizuki
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Patent number: 7728914Abstract: A display panel for amplifying light reflection intensity. The display includes a substrate, at least one protrusion on one face of the substrate, and a light reflective layer deposited on the at least one protrusion. The at least one protrusion amplifies light reflection intensity when light is reflect off the light reflective layer.Type: GrantFiled: January 28, 2004Date of Patent: June 1, 2010Assignee: Au Optronics CorporationInventors: Hsu-Ping Tseng, Chen-Hsien Liao
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Patent number: 7728915Abstract: A pixel structure of the present invention includes two metal plates and a transistor. The metal plates are electrically connected together. The gate of the transistor receives a scan signal. The drain of the transistor receives a data signal. The source of the transistor includes two extending portions. A store capacitor is formed between the two extending portions and the two metal plates. The two extending portions are plate structures.Type: GrantFiled: May 22, 2007Date of Patent: June 1, 2010Assignee: AU Optronics Corp.Inventors: Yu-Hsin Ting, Ya-Chun Lee
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Patent number: 7728916Abstract: A liquid crystal display device includes a liquid crystal display panel. A drive circuit part is formed in the display panel. The drive circuit has a switching device with thin film transistors. The transistors commonly use one gate electrode and are connected in parallel. The switching device includes a gate electrode, a gate insulating film covering the gate electrode, a semiconductor pattern which overlaps the gate electrode with the gate insulating film therebetween, and source and drain electrodes which are formed on the semiconductor pattern and face each other. The source and drain electrodes, as well as a channel between the source and drain electrodes, are bent in the same direction.Type: GrantFiled: June 30, 2005Date of Patent: June 1, 2010Assignee: L.G. Display Co., Ltd.Inventor: Choong Yong Sohn
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Patent number: 7728917Abstract: A pixel structure formed on a substrate and electrically connected with a scan line and a data line, and including a semiconductor pattern and a pixel electrode is provided. The semiconductor pattern includes at least two channel areas, at least one doping area, a source area, and a drain area. The channel areas are located below the scan line and have different aspect ratios. The doping area is connected between the channel areas. The pixel electrode electrically connects the drain area, the source area is connected between one of the channel areas and the data line, and the drain area is connected between the other channel area and the pixel electrode. The scan line has different widths above different channel areas, and a length of each channel area is substantially equal to the width of the scan line.Type: GrantFiled: April 7, 2008Date of Patent: June 1, 2010Assignee: Au Optronics CorporationInventors: Chia-Chiang Hsiao, Cheng Lo, Chih-Jen Hu
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Patent number: 7728918Abstract: An electro-optical device includes a bent wiring board that is connected to an electro-optical panel; a frame that supports the electro-optical panel; when a direction where sides of the electro-optical panel connected to the wiring board extends is set to a first direction and a direction perpendicular to the first direction is set to a second direction, first direction holding pieces which prevent positional deviation of the electro-optical panel in the first direction, the first direction holding pieces being provided at both corner portions of the frame corresponding to a bent portion of the wiring board; and second direction holding pieces which prevent positional deviation of the electro-optical panel in the second direction, the second direction holding pieces being provided at both the corner portions of the frame corresponding to the bent portion of the wiring board.Type: GrantFiled: September 27, 2005Date of Patent: June 1, 2010Assignee: Seiko Epson CorporationInventor: Shinji Sakurai
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Patent number: 7728919Abstract: A liquid crystal module includes a liquid crystal panel, a light source, a frame, a first flexible printed wiring board and a second flexible printed wiring board. The frame houses the liquid crystal panel and the light source. The frame has a side face with a main access component and first and second sub-access components. The first flexible printed wiring board extends through the main access component. The first flexible printed wiring board is electrically coupled to one of the liquid crystal panel and the light source. The second flexible printed wiring board extends through one of the first and second sub-access components. The second flexible printed wiring board is electrically coupled to the other of the liquid crystal panel and the light source.Type: GrantFiled: November 26, 2007Date of Patent: June 1, 2010Assignee: Funai Electric Co., Ltd.Inventor: Mitsuru Tanaka
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Patent number: 7728920Abstract: An exemplary liquid crystal display includes a first frame and a second frame. The first frame includes two opposite first side walls, and each first side wall includes at least one slideway defined therein. The second frame includes two opposite second side walls, and the second side walls respectively correspond to the first side walls. Each second wall includes at least one strip provided thereat. The first strips of the second frame are slidable along the corresponding first slideways such that the first frame and the second frame are detachably engaged together.Type: GrantFiled: December 28, 2007Date of Patent: June 1, 2010Assignees: Innocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.Inventor: Chao Liang
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Patent number: 7728921Abstract: An exemplary brightness enhancement film (15) includes a main body (154), a plurality of first prism structures (152), a plurality of second prism structures (156), and first and second protective layers (150, 158). The main body includes a first side, and a second side opposite to the first side. The first prism structures are formed at the first side. The second prism structures are formed at the second surface. The first protective layer covers the plurality of first prism structures, and the second protective layer covers the plurality of second prism structures.Type: GrantFiled: December 14, 2006Date of Patent: June 1, 2010Assignees: Innocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.Inventors: Kai Meng, Che-Kuei Mai
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Patent number: 7728922Abstract: The present invention provides a liquid crystal display device in which increase in manufacturing costs is minimized and the utilization rate of illumination light emitted by a backlight source is also improved. A pixel electrode is formed at the intersection of each signal line and each gate line on the liquid-crystal-layer side of a first transparent substrate. A color filter is provided for each pixel electrode on the liquid-crystal-layer side of a second transparent substrate. A dichroic half mirror is provided for each of the color filters.Type: GrantFiled: May 2, 2008Date of Patent: June 1, 2010Assignee: Hitachi Displays, Ltd.Inventors: Shoichi Hirota, Tatsuya Sugita
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Patent number: 7728923Abstract: A backlight unit and method of use are provided having a first light guide plate, a linear light source disposed along at least one side edge of the first light guide plate, a plurality of second light guide plates facing the first light guide plate, and a point light source disposed along at least one side edge of each second light guide plate. Accordingly, the present invention can provide a backlight unit using both a point light source and a linear light source at substantially the same time, and having superior color reproducibility and low power consumption.Type: GrantFiled: September 5, 2006Date of Patent: June 1, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Su-gun Kim, Tae-hee Cho, Ki-bum Seong, Jun-young Lee, Jung-hyeon Kim
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Patent number: 7728924Abstract: An exemplary backlight module (2) includes a light guide plate (21) and a light source (23). The light guide plate includes a main body, a protrusion (217) extending from an end of the main body, a main light emitting surface (211), and a light incident surface (215) at the end of the main body. Wherein one side of the protrusion forms a part of the light emitting surface, another side (2171) of the protrusion is adjacent to the light incident surface. The protrusion and the light incident surface cooperatively form an accommodating space. The light source is substantially received in the accommodating space.Type: GrantFiled: October 16, 2007Date of Patent: June 1, 2010Assignee: Innolux Display Corp.Inventor: Yu-Cheng Cheng
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Patent number: 7728925Abstract: A planar light source includes a large variable width of an irradiation angle of illumination light, a display device having a large variable width of an angle of field that uses the planar light source, a portable terminal device that uses the display device, and a ray direction switching element that is incorporated in the planar light source. A beam direction regulating element (a louver), which controls a direction of light, and a transparent and scattering switching element, which can switch the transparent state and the scattering state according to ON and OFF of an applied voltage, are provided between a backlight and a liquid crystal panel, whereby it is possible to increase a variable width of an irradiation angle of light in the planar light source and increase a variable width of an angle of field of the liquid crystal display device that uses the planar light source.Type: GrantFiled: January 15, 2009Date of Patent: June 1, 2010Assignee: NEC CorporationInventors: Ken Sumiyoshi, Teruaki Suzuki, Fujio Okumura, Shinichi Uehara
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Patent number: 7728926Abstract: A liquid crystal display and method for controlling brightness of an image on a liquid crystal display are provided, in which, a liquid crystal display panel displays an image, a light generating unit provides a laser beam to illuminate the liquid crystal display panel, a scanning unit scans the liquid crystal display panel with the laser beam, and a controller controls a speed of the scanning unit depending on a brightness of the image. Thus, the liquid crystal display is capable of improving a contrast of an image displayed on a liquid crystal panel using a laser as a backlight.Type: GrantFiled: May 16, 2007Date of Patent: June 1, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-soo Lee, Kun-ho Cho
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Patent number: 7728927Abstract: A mirror device may be simultaneously used for display purposes, based on e.g. an LCD display with a polarizing mirror placed in front of it. The polarizing mirror has the characteristics that it does not disturb the transmission of the light from the display to the viewer, but does reflect the incident light.Type: GrantFiled: August 20, 2004Date of Patent: June 1, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Armanda Cinderella Nieuwkerk, Martinus Hermanus Wilhelmus Maria Van Delden, Maria Henrica Wilhelmina Antonia Van Deurzen