Patents Issued in December 4, 2008
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Publication number: 20080297410Abstract: A satellite receiver detachably combined to a blue tooth handset comprises a blue tooth satellite receiver module including a blue tooth module, a central processing unit, satellite receiver module, a GPS satellite antenna, and a power control module; the satellite receiver module being coupled to the GPS satellite antenna for receiving signals and then decoding the signals; the decoded signals being transferred to the central processing unit to be processed and then sent digital data to the blue tooth module; a blue tooth handset including a blue tooth module, an auto-dialing transmission software unit, and a mobile phone module; the signals from the blue tooth module being received by the blue tooth module of the handset; then the signals received by the blue tooth module being transferred to the auto-dialing transmission software unit; and then the mobile phone module actuating a dialing mechanism for transferring message to a receiving end.Type: ApplicationFiled: June 1, 2007Publication date: December 4, 2008Inventor: Chii-Moon Liou
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Publication number: 20080297411Abstract: A method for acquiring a GPS signal includes receiving a GPS signal portion over a coarse acquisition (C/A) frame period. The received GPS signal portion is stored and correlated to each of a plurality of versions of a reference coarse acquisition code to obtain a respective plurality of autocorrelation values. A peak value is selected among the autocorrelation values, the peak value corresponding to a version of the reference coarse acquisition code which is most aligned with the received GPS signal.Type: ApplicationFiled: December 13, 2007Publication date: December 4, 2008Inventor: Inchul KANG
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Publication number: 20080297412Abstract: According to one embodiment, a GPS reception device includes a section which acquires information in radio signals from satellites, a storage section which stores parameters to select part of the satellites, a section which calculates pseudo-distances from the satellites to a reception point based on the acquired information and measures the position of the reception point based on calculation results obtained for the selected part, and a touch panel display which inputs the position of a known reception point. The device includes a section which calculates real distances from the satellites to the known reception point when the position is input, determines ranges of elevation and azimuth angles suitable for the measurement based on the elevation and azimuth angle values of the satellites preferentially set in an order in which differences between the real distances and the pseudo-distances become smaller and sets the ranges as parameters into the storage section.Type: ApplicationFiled: May 30, 2008Publication date: December 4, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Hiroshi HAMADA
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Publication number: 20080297413Abstract: A method includes determining for each access point and each associated client that has traffic to exchange with the access point in either directions of a link a pattern of slots of times that causes minimum interference to clients of other access points in a wireless local area network; deriving a conflict graph of pair wise patterns of different access points representing which patterns conflict on a particular client, the conflict graph representing which patterns of the slots cannot be scheduled simultaneously in a slot so as to avoid interference; and generating a schedule for each access points in the slots such that no two conflicting patterns for two different access points are scheduled in the same slot.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Inventors: Ravindranath Kokku, Samrat Ganguly, Vishnu Navda
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Publication number: 20080297414Abstract: Variable phase ring oscillators are described that provide a linear phase progression between adjacent elements in an antenna array by providing a symmetric ring configuration of tuned amplifiers and a single phase shifter. The ring topology is coupled to a single PLL that allows for direct modulation and demodulation of arbitrary waveforms without using RF up/down converting mixers. The PLL distributes the transmit waveforms to all antenna elements in the transmit mode and combines the received waveforms in the receive mode without any complicated power distribution network. Ultra-wideband architectures and methods are described that utilize a first reference signal source, a VPRO, and a second reference signal source. Related methods are controlling an array and beam steering are also described.Type: ApplicationFiled: June 2, 2008Publication date: December 4, 2008Applicant: UNIVERSITY OF SOUTHERN CALIFORNIAInventors: Harish Krishnaswamy, Hossein Hashemi
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Publication number: 20080297415Abstract: A wireless device belongs to a wireless communication system and exchanges information within at least one band of frequencies. A method includes detecting a presence of at least one victim device operating within the at least one band of frequencies. The first wireless device is provided with an antenna array, and the detecting step includes analyzing an environment of the wireless device through the antenna array, and if the at least one victim device is detected, reducing interference by controlling the antenna array to steer the antenna beam toward an area located outside a vicinity of the potential victim device to exchanging information within the at least one band of frequencies with at least a second wireless device located in the area.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Applicant: STMicroelectronics SAInventors: Friedbert Berens, Eric Achkar
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Publication number: 20080297416Abstract: A system and method is provided for performing matrix inverse functions, for example, for use within Space-Time Adaptive Processing (STAP). The methods use parallelism of a Forward/Backward substitution algorithm in two dimensions to increase a speed of execution of the matrix inverse function. Sampled data is combined with steering vector values, which direct antennas in a desired direction in the absence interference, in order to determine adaptive weights used within filters to remove unwanted energy in the sampled data due to jammers, clutter or other interference. The adaptive weights are recursively computed, using stored values of previously calculated adaptive weights and other factor coefficients derived from the sampled data.Type: ApplicationFiled: May 29, 2007Publication date: December 4, 2008Inventor: John R. Samson, JR.
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Publication number: 20080297417Abstract: Methods, systems, and apparatuses for manufacturing light weight microstrip element antennas incorporating a skeleton dielectric spacer instead of a regular solid body dielectric spacer is described. The microstrip element antenna comprises a radiator, a dielectric layer which is in the form of a skeleton rib-caged structure and a ground plane layer. Due to the skeleton rib-caged structure of the dielectric spacer, design flexibility in terms of a non-uniform variation of the effective dielectric constant across various dimensions of the dielectric layer is obtained. Additional advantages of such a dielectric spacer include a wider choice of materials from which the antenna can be made, overall light weight and low production time and machine cost due to lower cooling time of the dielectric. Further, an antenna with a skeleton dielectric spacer further has a better drying characteristics in an event of a water ingress during or post-production.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Applicant: Symbol Technologies, Inc.Inventors: TIMOTHY B. AUSTIN, Mark W. Duron, Richard T. Knadle
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Publication number: 20080297418Abstract: The feed point adjustable planar antenna includes a ground component, a main radiation plane, a branch line extended from the main radiation plane, and a ground pin electrically connecting the radiation component with the ground component. If it needs to fine tune the frequency band interval after the design of the antenna is completed, the feed position of the coaxial cable to the branch line can be changed to achieve the fine tuning without cutting the antenna. The ground pin extends from a side edge of the ground component and the branch line is adjacent to the ground component. The branch line and the ground component form a larger coupling range than the conventional planar antenna does. In the mean time, the coaxial cable also has a larger feed range than the conventional planar antenna does.Type: ApplicationFiled: June 2, 2007Publication date: December 4, 2008Inventors: Chuan-Ling Hu, Yu-Wei Chen, Chang-Lun Liao, Chia-Sheng Liu
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Publication number: 20080297419Abstract: Various embodiments are directed to high isolation antenna design for reducing frequency coexistence interference. In one embodiment, a computing device may comprise a printed circuit board including a first internal antenna and a second internal antenna operating in a common frequency band. At least one of the first internal antenna and the second internal antenna may comprise a balanced antenna coupled to an unbalancing element to suppress surface current on the printed circuit board and reduce frequency coexistence interference between the first internal antenna and the second internal antenna. Other embodiments are described and claimed.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Inventors: Weiping Dou, Avi Kopelman
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Publication number: 20080297420Abstract: An antenna device with a surface antenna pattern is formed either on an internal surface or on the external surface of a casing of an electronic device by film coating technology. The surface antenna pattern is either directly connected to a signal feeding line or connected to a signal feeding line through a signal guiding passage. In an embodiment, a recess is pre-formed on the external surface of the casing and then a surface antenna pattern is coated to the recess. The antenna device may further comprise an antenna coupling element arranged at the internal surface of the casing, in opposite to the surface antenna pattern. The antenna coupling element is inductively coupled with the surface antenna pattern for transceiving the signals to the electronic device.Type: ApplicationFiled: September 13, 2007Publication date: December 4, 2008Inventors: Yu-Chiang Cheng, Ping-Cheng Chang, Cheng-Zing Chou
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Publication number: 20080297421Abstract: A radio frequency device comprises a radio frequency transponder having a radio frequency circuit and a radio frequency antenna, and a sensor conductively connected to the radio frequency antenna so that a measurement can be retrieved from the sensor by communicating with the transponder. The radio frequency antenna comprises a first portion which is used primarily for receiving and/or sending of radio frequency signals, and a second portion which is used primarily for conductively connecting the sensor to the first portion of the radio frequency antenna and which enables placing the sensor in a spaced-apart spatial relation to the first portion of the radio frequency antenna.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Applicant: KSW Microtec AGInventors: Frank KRIEBEL, Robert SEMAR
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Publication number: 20080297422Abstract: An antenna device includes an antenna substrate 30 and a multilayer substrate 36 mounted on the antenna substrate 30. The antennal substrate 30 includes an insulating part 31, an antenna element 32 composed of a conductor pattern formed on a predetermined principal surface and a ground part 34 connected to the antenna element 32 electrically and formed on the principal surface. The multilayer substrate 36 includes a wiring pattern formed in an inside layer, an opening through which the wiring pattern is exposed on the side of one principal surface of the multilayer substrate 36, a plurality of through-holes formed so as to surround the opening and penetrate the inside layer of the multilayer substrate 36 while extending from the one principal surface and a ground layer 38 arranged to make contact with respective other ends of the through-holes and arranged in a position to interleave the wiring pattern against the opening.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Masaaki ISHIDA
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Publication number: 20080297423Abstract: Provided is a method for measuring inverse scattering wave, which includes installing a scattering object which is a test object in a coupler, feeding an electrical signal to an input terminal of the coupler, terminating an output terminal and an isolation terminal of the coupler so that the electrical signal scattered by colliding with the scattering object is transmitted to a coupling terminal of the coupler, and measuring intensity of the electrical signal transmitted to the coupling terminal. In addition, provided is an apparatus for identifying an inferior Radio Frequency IDentification (RFID) transponder and an inferior RFID reader by using the method for measuring the inverse scattering wave. Accordingly, the installation cost thereof is reduced. Furthermore, the facilities for the measurement can be installed in a narrow space, and the measurement can be done regardless of an external electromagnetic wave environment.Type: ApplicationFiled: December 11, 2006Publication date: December 4, 2008Inventor: Je-Hoon Yun
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Publication number: 20080297424Abstract: The wideband L-loop antenna is presented in this invention. It has excellent performance for lower band of UWB system and has the attractive features of small size, inexpensive, and easy to design. The antenna composed of a single metallic layer is printed on the top of a substrate and a coupled tapered transmission line is printed on the top of the same substrate. A L shape portion is formed by widening partially or wholly the width of a part of antenna elements in comparison with the other part.Type: ApplicationFiled: December 28, 2004Publication date: December 4, 2008Inventors: Kamya Yekeh Yazdandoost, Ryuji Kohno
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Publication number: 20080297425Abstract: A method and device for aligning an antenna to a desired heading. A laser beam is generated and aimed in a direction perpendicular to the desired heading. The line of sight of the laser is translated along the desired heading until the laser is directed to a reflective surface on the antenna's axis of transmission. The antenna is then positioned until the laser beam returns to a detector whose horizontal line of sight is the same as that of the laser, i.e., in a direction perpendicular to the desired heading.Type: ApplicationFiled: December 12, 2006Publication date: December 4, 2008Inventors: Christopher Kipp Axton, Dean Alan Erdman
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Publication number: 20080297426Abstract: Provided is a antenna system for tracking a mobile satellite and a movable carrier having the same for mechanically adjusting the orientation of an antenna at the azimuth angle and the elevation angle and correcting the phase error of a receiving signal while adjusting the elevation angle of the antenna at the same time. The antenna system for tracking a mobile satellite includes: a substrate; a rotating plate rotatably disposed on the substrate; one or more antennas disposed at the rotating plate; an azimuth angle adjusting unit for mechanically adjusting an azimuth angle of the antenna; and an elevation angle adjusting unit for mechanically adjusting an elevation angle of the antenna.Type: ApplicationFiled: October 12, 2006Publication date: December 4, 2008Inventors: Young-Bae Jung, Soon-Ik Jeon, Chang-Joo Kim
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Publication number: 20080297427Abstract: Provided is an antenna system for tracking a satellite which includes a fixed body and a rotating body. The antenna system includes a transmitting/receiving unit having a transmitting channel and a receiving channel for signal power, a driving unit for enabling mechanical motion of the rotating body for satellite tracking, and a control unit for monitoring and controlling the operation of the driving unit. Accordingly, the various kinds of the components of the antenna system mounted and operated on the movable body can be minimized and the output of the transmitted signal required in the antenna system can be simply replaced, thereby simplifying the configuration of the system and reducing the production cost of the system. In addition, the STR having the tracking signal processing function in the digital mode as well as the general analog mode is mounted on the antenna system, thereby improving accuracy of satellite tracking.Type: ApplicationFiled: December 11, 2006Publication date: December 4, 2008Inventors: Young-Bae Jung, Soon-Young Eom, Jae-Seung Yun, Seong-Ho Son, Soon-Ik Jeon, Chang-Joo Kim
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Publication number: 20080297428Abstract: Systems are disclosed for providing substantially equal E-plane and H-plane radiation patterns in a high power and dual band coaxial feedhorn antenna for a satellite communication system. One embodiment may include a coaxial feedhorn antenna comprising an outer coaxial horn portion for propagation of first signals and an inner horn portion for propagation of second signals. The coaxial feedhorn antenna may also comprise a conductive choke-ring coupled to the outer conductive wall, the conductive choke-ring being coaxial with the outer coaxial horn portion and the inner horn portion. The conductive choke-ring provides substantially equal E-plane and H-plane radiation patterns of the first signals and substantially reduced back-lobes.Type: ApplicationFiled: February 24, 2006Publication date: December 4, 2008Inventor: Te-Kao Wu
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Publication number: 20080297429Abstract: A point-to-point radio communications device, with an integrated antenna-IC module, includes highly-directional antenna elements and silicon CMOS-based ICs in plastic packaging material. The high-gain horn-type antenna includes two sections made of molded plastic and covered in a metallic coating. When combined, the two sections form an aperture and an opening on a face. The face of the antenna element can be mounted directly to an integrated circuit with an antenna coupling element, such that the aperture forms a horn-IC module. The module can be completely enclosed in a plastic-packaging environment using low-cost approach. The antenna-IC module can be manufactured as an integral part of a case for a point-to-point wireless electronic device such as a mobile video phone or a set-top box with tens of gigabits of video downloading capability.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Inventor: Debabani Choudhury
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Publication number: 20080297430Abstract: A planar broadband antenna includes a flat elliptical antenna device. The elliptical antenna device includes a central antenna element, a first angular antenna element and a second angular antenna element. The central antenna element is disposed parallel to a support. The angular antenna elements are formed by two opposite segments of the elliptical antenna device and point toward the support. The first angular antenna element is provided with a base point through which a signal is capable of being fed in. An impedance device connects the second angular antenna element to a ground point located near the base point.Type: ApplicationFiled: September 9, 2005Publication date: December 4, 2008Inventor: Thomas Schano
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Publication number: 20080297431Abstract: In a liquid crystal display, a pixel driving circuit 16 alternately displays a first image and a second image on a liquid crystal panel 11. A front light 12 lights up while the first image is displayed on the liquid crystal panel by the pixel driving circuit 16, and another front light 13 lights up while the second image is displayed on the liquid crystal panel by the pixel driving circuit 16. As a result, the liquid crystal display enables a viewer B to look at the second image different from the first image which it provides for a viewer A.Type: ApplicationFiled: February 9, 2005Publication date: December 4, 2008Applicant: Mitsubishi Electric CorporationInventors: Akimasa Yuuki, Kyoichiro Oda, Atsushi Ito, Tetsuya Satake, Shin Tahata
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Publication number: 20080297432Abstract: When a first display device displays image data, a display control apparatus reserves a memory space having the first horizontal pixel number in the storage unit, and sets the frequency of a clock signal supplied to the display control unit to a first frequency. When a second display device displays image data, a display control apparatus reserves a space of the second horizontal pixel number, which is higher than the first horizontal pixel number, and sets the frequency of a clock signal supplied to the display control unit to a second frequency which is higher than the first frequency.Type: ApplicationFiled: February 26, 2008Publication date: December 4, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Zenya Kawaguchi
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Publication number: 20080297433Abstract: A computing apparatus includes a primary keyboard and a primary display, which are respectively arranged to accept input from a user and to display information to the user. An auxiliary display is arranged to display auxiliary information to the user when the apparatus is in a switched-off operational state, and to hide the auxiliary information when deactivated. An activation controller is arranged to monitor the primary keyboard when the auxiliary display is deactivated, to detect an activation code comprising one or more keystrokes entered using the primary keyboard, and to activate the auxiliary display responsively to detecting the activation code.Type: ApplicationFiled: May 29, 2007Publication date: December 4, 2008Inventors: Zeev Heller, Ilia Stolov
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Publication number: 20080297434Abstract: A display system for stereoscopic displaying of images includes a pair of wide viewing angle displays arranged at an angle to each other, each display providing respective images formed by plane polarized light. A beam combiner is located between the displays such that the beam combiner transmits light from one display and reflects light from the other display, whereby the transmitted and reflected light are provided via the beam combiner in substantially the same direction. One of the wide viewing angle displays has a substantially vertical polarization and the other of the wide viewing angle displays has a substantially horizontal polarization. The display system provides for stereoscopic display of high-resolution images with wide horizontal and vertical viewing angles.Type: ApplicationFiled: August 12, 2008Publication date: December 4, 2008Applicant: FERGASON PATENT PROPERTIES, LLCInventor: Adiel Abileah
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Publication number: 20080297435Abstract: The present invention relates to an enlarged reality visualization system with pervasive computation. More specifically, this invention refers to a system that makes available data and information for individual's moving, spatial and geographical positioning, acquisition of data and information in real time or stored in some storage device, for users, such as professionals in general, in urban movement, hobbyists or visual deficient that need to transit by urban and/or building atmospheres, interacting with the objects and/or buildings, using wireless communication technologies. The present invention can be still used as system for generation of an electronic book, when the exhibition display is uncoupled from the head support and lay on a table and/or base or held with the hands.Type: ApplicationFiled: December 12, 2006Publication date: December 4, 2008Inventors: Vagner Rogerio dos Santos, Ana Luisa Holfing de Lima, Ricardo Uras
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Publication number: 20080297436Abstract: If the size of an error portion within an image of the frame of interest is equal to or larger than a threshold and it is determined that no error portion exists within an image of a frame immediately before the frame of interest, a display unit (115) is caused to display the image of the frame immediately before the frame of interest as the image of the frame of interest. If the size of an error portion within the image of the frame of interest is smaller than the threshold and it is determined that an error portion exists within the image of the frame immediately before the frame of interest, the display unit (115) is caused to display a result obtained by correcting the error portion within the image of the frame of interest using a pixel group surrounding the error portion.Type: ApplicationFiled: May 27, 2008Publication date: December 4, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Makoto Oikawa, Masahiro Suzuki, Tomohiko Shimoyama, Akihiro Katayama
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Publication number: 20080297437Abstract: A viewpoint information calculation unit (710) calculates a difference value (?) between reference position and orientation information and position and orientation information held by a camera viewpoint storage unit (207), and a difference value (?) between the reference position and orientation information and position and orientation information held by a CG viewpoint storage unit (208). If |?|?|?|, a physical space image is shifted by a shift amount calculated in accordance with the resolution of a display unit (213), a difference amount, and the angle of view of a camera (203), and is composited with a virtual space image. If |?|<|?|, the virtual space image is shifted by the shift amount, and is composited with the physical space image.Type: ApplicationFiled: May 27, 2008Publication date: December 4, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Hiroshi Takahashi
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Publication number: 20080297438Abstract: A digital photo frame includes a body and a stand. The body has a first combining portion, and the stand has a second combining portion. The first combining portion and the second combining portion are combined by magnetic attraction.Type: ApplicationFiled: April 29, 2008Publication date: December 4, 2008Inventor: Tsung-Kai LIN
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Publication number: 20080297439Abstract: A display panel (1) for a motor-vehicle dashboard has—a front surface (3) substantially dark on which there can be displayed symbols or icons (4) and/or wordings or numbers generated by a liquid-crystal display (5) by means of activation of one or more light sources (6) that backlight them. The front surface (3) of the panel is defined by a structured film (10), which has a high transmittance in regard to the light coming from the light source set behind it, and a high absorbance in regard to the light coming from outside. The film (10) comprises a layer (10A) formed by an array of focusing optical elements (11; 15) and an array of areas with another transmittance (12; 18) set substantially in the focal plane of said array of focusing elements (10A), said high-transmittance areas (12; 18) being separated by substantially absorbent areas (13) and being arranged along the optical axes of the focusing optical elements (11; 15).Type: ApplicationFiled: August 3, 2007Publication date: December 4, 2008Inventors: Piermario Repetto, Stefano Bernard
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Publication number: 20080297440Abstract: The display device includes a display panel which includes a plurality of pixels, a gate driver which sequentially applies gate-on voltages to the plurality of pixels for a first period and a data driver which generates data voltages for at least two pixels of the plurality of pixels for the first period, and supplies the data voltages to the two pixels of the plurality of pixels, respectively, wherein an application order of the data voltages applied to the at least two pixels of the plurality of pixels is reversed in two adjacent frames.Type: ApplicationFiled: October 31, 2007Publication date: December 4, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: SEOCK-CHEON SONG, JUN-YOUNG LEE, MYUNG-KOO KANG, SUNG-WOOK KANG, JONG-HWA PARK, YOUNG-KWANG KIM
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Publication number: 20080297441Abstract: Aspects of the invention can provide an electronic circuit that can include a first transistor having a first and second terminal between which a first channel region can be formed, and a second transistor having a third and fourth terminal between which a second channel region can be formed. In the electronic circuit, a gate voltage of the first transistor can be based on a programming current flowing from the first terminal to the second terminal during a first step, a reproducing current flowing from the second terminal to the first terminal during a second step, and a current level of the reproducing current corresponding to the gate voltage determined during the first step.Type: ApplicationFiled: May 15, 2008Publication date: December 4, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Takashi Miyazawa
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Publication number: 20080297442Abstract: An electronic-ink based display tagging system including a plurality of programmable electronic-ink display tags, and a portable tag activation module for programming display indicia to be displayed on each electronic-ink display tag. Each electronic-ink display tag includes an addressable display assembly including a layer of electronic ink including a bi-stable non-volatile imaging material. Each electronic-ink display tag also includes an integrated circuit structure having a storage element for storing instructions, programs and data, and a programmed processor in electrical communication with the addressable display assembly and an antenna structure. A signal transmitting structure transmits signals from the antenna structure to the portable tag activation module module. A signal receiving structure receives electromagnetic signals from the portable tag activation module module, using the antenna structure.Type: ApplicationFiled: May 22, 2008Publication date: December 4, 2008Inventor: Alexander Gelbman
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Publication number: 20080297443Abstract: A plasma display apparatus is disclosed that includes a panel substrate, a chassis adhered to a rear surface of the panel substrate and supporting the panel substrate, and plural address driver modules arranged along a rim portion of the panel substrate. Each address driver module including a flexible board and an address driver circuit provided on the flexible board and having one end fixed to a front surface rim part of the panel substrate. The chassis has plural through-holes formed in a rim part of the chassis. The plural through-holes expose a part of the panel substrate to which plural attachment parts are fixed. The plural attachment parts include adjacently arranged attachments parts fixed to the panel substrate by a coupling part. The other end of each address driver module is fixed to the corresponding attachment part.Type: ApplicationFiled: October 12, 2007Publication date: December 4, 2008Inventors: Tomoyuki ARIMA, Yoshiro MURAYASU
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Publication number: 20080297444Abstract: A plasma display apparatus and a driving method thereof performs a selective writing operation in a first subfield, and performs an selective erase operation in a second subfield to an n-th subfield.Type: ApplicationFiled: December 29, 2006Publication date: December 4, 2008Inventor: Seonghak Moon
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Publication number: 20080297445Abstract: The plasma display panel device according to the present invention includes a the data driver that includes a data IC applying a driving signal to at least one address electrode and a data driver applying a driving data signal to the data IC to reduce EMI and ensure timing margin according to high rate switching operations of the plural switches included in the data IC, wherein the data driver generates a first synchronization signal if N?1th data is different from Nth data and maintains and applies the first synchronization signal to the data IC if the Nth data is different from N+1th data.Type: ApplicationFiled: May 30, 2008Publication date: December 4, 2008Inventors: Ok Hwan KWON, Jong Ki KIM, Jun Bae PARK
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Publication number: 20080297446Abstract: A plasma display panel includes a first substrate having first and second surfaces opposite each other, the first substrate including a plurality of grooves in the second surface, the grooves extending along a first direction, a plurality of address electrodes in the grooves along the first direction, a thickness of the address electrodes being smaller than a depth of the grooves to define a space between each address electrode and the second surface of the first substrate, a plurality of sustain electrodes on the second surface of the first substrate along a second direction, the second direction crossing the first direction, a second substrate facing the second surface of the first substrate, barrier ribs between the first and second substrates to define discharge cells between the first and second substrates, and at least one phosphor layer in each of the discharge cells.Type: ApplicationFiled: May 19, 2008Publication date: December 4, 2008Inventor: Takahisa Mizuta
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Publication number: 20080297447Abstract: A display device (10) includes: a scan drive circuit (74) operating to apply scan voltages to respective ones of the display electrodes (2, Y1-Yn) during a first period of time, and apply sustain voltage pulses to the ones of the display electrodes (2, Y1-Yn) during a second period of time; a sustain voltage circuit (64) applying a potential for a sustain voltage pulse between two inputs of said scan drive circuit through two respective signal lines (SU, SD) during said second period of time; a switch (SW1) short-circuiting the two input terminals of said scan drive circuit during said second period of time; and a switch control circuit (604) causing said short-circuiting switch to operate. The switch control circuit provides a control signal (SW_CTRL) to operate said short-circuiting switch so as to short-circuit the two input terminals during said second period of time.Type: ApplicationFiled: August 7, 2008Publication date: December 4, 2008Applicant: SHINODA PLASMA CORPORATIONInventors: Kenji Awamoto, Manabu Ishimoto, Hitoshi Hirakawa, Koji Shinohe
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Publication number: 20080297448Abstract: An organic light emitting diode (OLED) display apparatus having four types of light producing dots, including R (red), G (green), B (blue), and W (white) dots, includes detecting the amount of high frequency components of a portion of a color image to be displayed, or calculating average brightness or power of display from input image data; or detecting the amount of current flowing in display; or responding to a user input instruction; or responding to a battery capacity; and adaptively changing the usage ratio of W dots accordingly.Type: ApplicationFiled: June 6, 2005Publication date: December 4, 2008Inventors: Seiichi Mizukoshi, Nobuyuki Mori, Makoto Kohno
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Publication number: 20080297449Abstract: A display device includes: a pixel array unit with pixel circuits disposed in matrix form, the pixel circuit including a driving transistor, an electro-optic element, a storage-capacitor, and a sampling transistor, with the electro-optic element emitting light by generating a driving current based on information stored in the storage-capacitor at the driving transistor to be applied to the electro-optic element; and a control unit, of which the output stage includes a buffer transistor, to output a pulse signal for driving the pixel array unit from the buffer transistor; wherein the pixel array unit and the control unit are formed with long laser beam irradiation to be scanned in the vertical direction; and with the control unit, buffer transistors for outputting a pulse signal for sampling to an input video signal to each signal line are arrayed in a column in the longitudinal direction of the laser beam irradiation.Type: ApplicationFiled: March 10, 2008Publication date: December 4, 2008Inventors: Junichi Yamashita, Katsuhide Uchino
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Publication number: 20080297450Abstract: An organic electroluminescent device comprises: a substrate; a display unit located on the substrate and including a plurality of subpixels; a sealing region located at the outer periphery of the display unit and defined to form a sealing member; and a plurality of wiring lines connected to the display unit and disposed on the lateral side of the display unit, some of the plurality of wiring lines are respectively divided into two or more in the sealing region.Type: ApplicationFiled: May 28, 2008Publication date: December 4, 2008Inventors: Hongki Park, Woochan Kim, Hongseok Choi
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Publication number: 20080297451Abstract: Methods and apparatuses to varying the apparent brightness of a display are described. The change in apparent brightness is accompanied by unchanged in relative contrast, rendering a display with higher or lower brightness while maintaining contrast fidelity. In exemplary embodiments, the signals for the middle tone levels are adjusted to increase or decrease the brightness intensity, while keeping constant the gamma correction. This maintains the relative contrast of images while rendering them at a different brightness. Implementations of the present process include an adjusted gamma correction lookup table, incorporated in the video card to modify the video signal before reaching the display. The present invention can be used for matching the brightness of two or more displays or to provide compensation for variations in display characteristics to ensure consistency in display brightness within a data processing model.Type: ApplicationFiled: May 30, 2007Publication date: December 4, 2008Inventor: Gabriel Marcu
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Publication number: 20080297452Abstract: Apparatus, systems, and methods are provided for dimming pixels on an active matrix light-emitting diode display. One apparatus includes an LED couplable between a voltage source and ground. First and second pulse-width modulation (PWM) drivers are also coupled to the LED. A system includes a plurality of LEDs forming a plurality of rows coupled between a voltage source and ground. A plurality of PWM drivers, each coupled to each of the LEDs in one of the plurality of rows, and a global PWM driver coupled to each of the plurality of LEDs in each of the plurality of rows are also included. One method includes providing current to each LED of a row of LEDs for a first portion of a cycle via a PWM driver, and providing current to each LED in the row for a second portion of the cycle via a different PWM driver.Type: ApplicationFiled: May 30, 2007Publication date: December 4, 2008Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: Jerry A. Roush, Kalluri R. Sarma, John F. L. Schmidt
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Publication number: 20080297453Abstract: The present invention provides a method of manufacturing an electronic display. The exemplary method includes depositing a first conductive medium within a plurality of cavities of a substrate to form a plurality of first conductors. A plurality of electronic components in a suspending medium are then deposited within the plurality of cavities, and the plurality of electronic components are oriented using an applied field, followed by a bonding of the plurality of electronic components to the plurality of first conductors. A second, transmissive conductive medium is then deposited and bonded to the plurality of electronic components.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Applicant: APPLIED PRINTED ELECTRONICS HOLDINGS, INC.Inventors: William Johnstone Ray, Mark David Lowenthal
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Publication number: 20080297454Abstract: A remotely-alterable electronic-ink based display device for displaying graphical indicia within a GPS system transmitting a plurality of GPS signals to the device display device. The device employs an addressable display assembly including a layer of electronic ink including a bi-stable non-volatile imaging material. The device includes an integrated circuit structure having a GPS signal receiver, a storage element for storing instructions, programs and data, and a programmed processor in electrical communication with the addressable display assembly and an antenna structure. A signal transmitting structure transmits signals from the antenna structure to the remote activator module. A signal receiving structure receives electromagnetic signals from the remote activator module, using the antenna structure. An on-board battery power structure, operably connected to the integrated circuit structure, supplies electrical power the integrated circuit structure.Type: ApplicationFiled: May 22, 2008Publication date: December 4, 2008Inventor: Alexander Gelbman
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Publication number: 20080297455Abstract: There is provided an image display device in which a display panel is driven based a plurality of sub-frame image data produced from a frame image data representing an image of one screen to display the image, the image display device includes:a dividing unit to divide the frame image data into a plurality of sub-frame image data; and a panel drive controlling unit to make each pixel data of one sub-frame image data correspond to each pixel of the display panel by one-to-one and to drive each pixel of the display panel, and to distribute each pixel data of other sub-frame image data to a plurality of pixels of the display panel that are adjacent in the display panel in a predetermined ratio and to drive each pixel of the display panel.Type: ApplicationFiled: May 27, 2008Publication date: December 4, 2008Applicant: Funai Electric Co., Ltd.Inventor: Joichi Endo
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Publication number: 20080297456Abstract: Methods and data processing systems are disclosed for adjusting a white point of a display. In one embodiment, a method includes setting the display to a first state. The method further includes providing a two dimensional array of white points to the display. The method further includes selecting a target white point from the two dimensional array of white points to visually match a desired white color of a medium. The method further includes encoding the selected target white point as two simultaneously captured variables. The method further includes deriving a second state of the display that corresponds to the target white point.Type: ApplicationFiled: June 4, 2007Publication date: December 4, 2008Inventors: Gabriel G. Marcu, Steve Swen
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Publication number: 20080297457Abstract: A liquid crystal display (LCD) device and a driving method where the LCD device includes a data controller for interleaving one of black gray scale data and intermediate gray scale data into input digital video data to input digital video data in a specific period preceding a second one of two successive frame periods in which data voltages having the same polarity are successively supplied to liquid crystal cells. A timing signal controller generates a data timing signal and a gate timing signal, based on an input timing signal, and accelerates a frequency of the data timing signal and a frequency of the gate timing signal in the specific period. A data driving circuit is included for converting the interleaved digital video data into an analog voltage in response to the data timing signal, and supplying the analog voltage to data lines in the specific period.Type: ApplicationFiled: May 22, 2008Publication date: December 4, 2008Inventors: Hong Sung Song, Woong Ki Min, Su Hyuk Jang
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Publication number: 20080297458Abstract: An exemplary liquid crystal display includes a data circuit, a memory, and a timing controller. The timing controller includes: a data analysis circuit configured for analyzing video signals stored in the memory and generating a corresponding control signal; and a polarity generating circuit configured for receiving the control signal and outputting a selected one of a first polarity control signal and a second polarity control signal to the data circuit according to the control signal. A related method for driving the liquid crystal display is also provided.Type: ApplicationFiled: June 2, 2008Publication date: December 4, 2008Inventor: Shun-Ming Huang
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Publication number: 20080297459Abstract: A back light device realizing improvement in hotspots and bright line in the region of light incidence and of darkness arising in between light sources is provided by forming the reflective surface of the reflector as a structured face comprising an iteration of prism elements of trapezoidal section.Type: ApplicationFiled: January 14, 2005Publication date: December 4, 2008Applicant: HITACHI CHEMICAL CO., LTD.Inventors: Yasushi Sugimoto, Teruo Teshima