Patents Issued in December 9, 2004
  • Publication number: 20040246187
    Abstract: A printed circuit board in which effect of noise is reduced without increasing distance between a noise source and a wireless communication board. The above-mentioned printed circuit board is applied to an information processing apparatus having a wireless communication function. As a result, a small-sized information processing apparatus having improved throughput of wireless communication and increased communication distance is provided.
    Type: Application
    Filed: November 20, 2003
    Publication date: December 9, 2004
    Inventors: Tsutomu Hara, Takashi Matsumoto, Hideki Osaka, Hitoshi Yokota, Kenji Kashiwagi
  • Publication number: 20040246188
    Abstract: A multi-frequency antenna having a small size, light weight and excellent productivity and being suitable for transmitting and receiving electric waves in Ghz band, is constituted such that an orthogonal coordinate X-Y is set, a first antenna element 21 having an electric wavelength of &lgr;a/4 and a second antenna element 22 having an electric wavelength of b/4 are placed in parallel to the X axis respectively, one edge of each of said elements is positioned near the Y axis, said two elements are connected electrically with a ground plate 8 by a short-circuit line 4 along the Y axis, a point where an impedance is 50&OHgr; (code 50) of the first antenna element 21 and a point where an impedance is 50&OHgr; of the second antenna element 22 are made to be a power feed point respectively, and said power feed points are connected with a coaxial cable 7 through a power feed line 6.
    Type: Application
    Filed: May 3, 2004
    Publication date: December 9, 2004
    Applicant: HOUKOU ELECTRIC CO., LTD.
    Inventor: Yoshimi Egashira
  • Publication number: 20040246189
    Abstract: A system and method are provided for regulating the electrical length of an antenna. The method comprises: communicating transmission line signals at a predetermined frequency between a transceiver and an antenna; sensing transmission line signals; and, modifying the antenna electrical length in response to sensing the transmission line signals. Sensing transmission line signals typically means sensing transmission line signal power levels. In some aspects, the antenna impedance is modified. Alternately, it can be stated that the transmission line signal strength is optimized between the transceiver and the antenna. More specifically, communicating transmission line signals at a predetermined frequency between a transceiver and an antenna includes accepting the transmission line signal from the transceiver at an antenna port. Then, sensing transmission line signals includes measuring the transmission line signal reflected from the antenna port.
    Type: Application
    Filed: April 3, 2003
    Publication date: December 9, 2004
    Inventor: Allen Tran
  • Publication number: 20040246190
    Abstract: A satellite antenna system (30) that employs a small phased antenna array (46) acting as a redundant antenna. Because the phased array (46) is steerable, it can be selectively directed to any of the cells (16) on the Earth (12) in the event that the LNA in an antenna channel (32) fails. The phased array (46) is switched into each antenna channel (32) after the channel front end (40) where a switch (56) used to switch in the phased array (46) is after the amplification in the channel (32). Therefore, the switch (56) does not significantly affect the noise figure of the channel front end (32).
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Inventor: Garrick Jon Harmon
  • Publication number: 20040246191
    Abstract: An electronic scanning radio direction finding system for accurate direction finding of radio frequency signals using singly or doubly flared cylindrical reflectors surrounded by a circular array of inwardly facing feed horns. The array is operated as a phased array to determine the direction of origin of received signals. The feed horns can also be used to transmit RF signals on very narrowly controlled beams with minimal side lobes. The flared cylindrical reflector and its circular feed horn array may be paired with circular log periodic arrays operable at similar frequency ranges or different frequency ranges to provide more precise direction finding and direction finding of signals at frequencies beyond the range of the flared cylindrical reflector and its circular feed horn array.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 9, 2004
    Applicant: Tecom Industries, Inc.
    Inventors: Arsen Melconian, David Steward, Gregory Lackmeyer, John Longyear, Paul Crane
  • Publication number: 20040246192
    Abstract: A variable-directivity antenna comprises an omnidirectional antenna element, a transmission line connected to the antenna element, and an electric field adjusting structure provided in a boundary region between the antenna element and the transmission line. The electric field adjusting structure is configured to change electric field distribution of the transmission line to a desired direction.
    Type: Application
    Filed: March 17, 2004
    Publication date: December 9, 2004
    Inventor: Satoru Sugawara
  • Publication number: 20040246193
    Abstract: The present invention provides a system for providing a bi-directional vector modulator in which the signal can travel in either direction while the phase shift remains constant. In addition to the functionality of being a phase shifter, the disclosed invention acts as a vector modulator by having the ability to continuously control both the amplitude and phase of a signal.
    Type: Application
    Filed: May 19, 2003
    Publication date: December 9, 2004
    Inventor: Joseph M. Carey
  • Publication number: 20040246194
    Abstract: A radome has a structure in which core portions are laminated to opposite side surfaces of a high relative-dielectric-constant layer, respectively, and skin portions are additionally laminated to opposite side surfaces of the laminate, respectively. Furthermore, the skin portions laminated to the outside surfaces are coated with a coating material. The radome accommodates an antenna. The high relative-dielectric constant layer has a relative dielectric constant that is larger than the relative dielectric constants of the skin portions, and of the core portions.
    Type: Application
    Filed: December 2, 2003
    Publication date: December 9, 2004
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryo Usami, Tsuyoshi Ozaki, Jun Tsuruta
  • Publication number: 20040246195
    Abstract: A radome has a structure in which respective skin portions are laminated to an internal surface and an external surface of a core portion, respectively, and the surface of the skin portion laminated to the external surface thereof is coated with a coating material. The radome accommodates an antenna. A material is dispersed in the two skin portions or the core portion, or in both the two skin portions and the core portion. The material has a relative dielectric constant that is different from the portion in which the material is dispersed, thereby adjusting the difference between the relative dielectric constants of the skin portions and the core portion to no more than 1.5.
    Type: Application
    Filed: December 2, 2003
    Publication date: December 9, 2004
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Ryo Usami, Tsuyoshi Ozaki, Jun Tsuruta
  • Publication number: 20040246196
    Abstract: To provide new attachment structure of a gasket which can surely prevent entry of water without fear of the mischief and is superior in appearance
    Type: Application
    Filed: February 26, 2004
    Publication date: December 9, 2004
    Inventors: Junichi Noro, Yuichi Saito, Kyuichi Sato
  • Publication number: 20040246197
    Abstract: A multiple screen computer system includes three separate screens disposed in a side-by-side vertical orientation on one monitor with the screens being accessible independent of each other and capable of displaying information, graphics, and data independent and simultaneous of each other for providing the user with enhanced multitasking capabilities.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 9, 2004
    Inventor: Wanda Jane Barrier
  • Publication number: 20040246198
    Abstract: There is provided an electronic apparatus capable of displaying same data on a plurality of display devices. The electronic apparatus includes a setting unit which enables to individually set on a setting screen a wait time for turning off power to each of the plurality of display devices, and a power-off execution unit which turns off power to a display device, among the plurality of display devices, if a continuous time of a state in which connection/disconnection of each display device is unchanged reaches the wait time set for the display device.
    Type: Application
    Filed: April 21, 2004
    Publication date: December 9, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Masaya Sahashi
  • Publication number: 20040246199
    Abstract: A three-dimensional image for a set viewpoint wherein a user can control the viewpoint, effectively rotating the displayed image around at least the Y-axis. By tracking the position of the user and altering the viewpoint of the projected image, the image can be automatically rotated to suit the user's viewing position. The soundscape can also be altered to match the currently displayed viewpoint. The viewpoint can be controlled by the user, who is effectively able to “explore” the moving image. To provide a three-dimensional display environment, the invention utilizes at least two stacked display layers, enabled by using stacked Transparent Organic Light Emitting Devices (TOLEDS), which are well known in the art. Color TOLED technology is itself stacked display technology, having multiple layers, each of a differing color, namely cyan, magenta, yellow and black or red, green and blue.
    Type: Application
    Filed: February 23, 2004
    Publication date: December 9, 2004
    Inventor: Artoun Ramian
  • Publication number: 20040246200
    Abstract: The invention relates to an instrument panel for the operating state of a land, air or water vehicle, in particular for the cockpit of an airplane, comprising a number of display fields (13) for representing information, whereby, in order to provide an instrument panel, which may be produced and maintained in an economic manner, with realistic instrumentation, the display fields (13) are produced on a backlit sheet (11) by means of image projection and a mask (12) is overlaid on the backlit sheet (11), which comprises cutouts (14), congruent with the display fields (13).
    Type: Application
    Filed: August 6, 2004
    Publication date: December 9, 2004
    Inventor: Harald Fronzek
  • Publication number: 20040246201
    Abstract: An OLED display and pixel structure thereof. The pixel structure comprises a first transistor, a storage capacitor, a second transistor and an OLED. The first transistor has a gate terminal coupled to a scan signal and a drain terminal coupled to a data signal. The storage capacitor has two terminals coupled to a source terminal of the first transistor and a reference node, which has a second voltage. The second transistor has a gate terminal coupled to the source terminal of the first transistor and a source terminal coupled to the reference node. The OLED has a cathode coupled to a drain terminal of the second transistor and an anode coupled to a first voltage, higher than the second voltage. The first transistor or the second transistor is an amorphous silicon thin film transistor (a-Si TFT), and a light efficiency of the OLED is no less than 11 cd/A.
    Type: Application
    Filed: March 17, 2004
    Publication date: December 9, 2004
    Inventors: Chih-Feng Sung, Chun-Huai Li
  • Publication number: 20040246202
    Abstract: In a pixel circuit composing a digital-driven organic EL display device, an organic light emitting element which emits light by the supply of electric current, and two driving transistors for controlling the supply of electric current to the organic light emitting element are connected in series. The driving transistor functions as an electric current adjustment element which adjusts an electric current flowing through the organic light emitting element. When the electric current flowing through the organic light emitting element decreases by the degradation of the organic light emitting element, decrease in temperature and the like, the driving transistor acts for increasing the electric current.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 9, 2004
    Inventor: Atsuhiro Yamashita
  • Publication number: 20040246203
    Abstract: A light guiding plate is provided on the obverse side of a display for displaying a display image while varying the display image. Unevenness is formed at a predetermined position at a reverse surface of the light guiding plate. A light emitting element is disposed at the side surface of the light guiding plate in such a manner as to introduce the light to the light guiding plate. Alternatively, an uneven portion in conformity with a pattern of a desired display image may be formed at a reverse surface of the light guiding plate, and a light emitting element is disposed at the side surface of the light guiding plate in such a manner as to introduce the light to the light guiding plate.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Inventor: Yasunari Nakaoka
  • Publication number: 20040246204
    Abstract: A plasma display panel capable of restricting the yellowing of a dielectric layer and the occurrence of dielectric breakdown, wherein glass constituting a dielectric layer uses glass containing a metal oxide MO2 capable of a trivalent or tetravalent-ion formation in glass. Accordingly, even when Ag is ionized from an electrode consisting essentially of Ag to diffuse to a dielectric layer, Ag does not aggregate to be formed into a colloid with an ionized state kept. Therefore, yellowing and dielectric breakdown caused by Ag turning to colloid can be restricted.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 9, 2004
    Inventors: Masaki Aoki, Hiroyuki Yonehara, Morio Fujitani
  • Publication number: 20040246205
    Abstract: The present invention relates to a plasma display panel, and more particularly, to a method for driving a plasma display panel. The driving method of the plasma display panel according to the present invention comprises the steps of: supplying alternately a sustain pulse to a scanning electrode and a sustain electrode during a sustain period; and supplying a DC voltage of positive polarity to an address electrode during a part of the sustain period. According to the driving method of the plasma display panel of the present invention, it is possible to achieve a stable address discharge and to prevent the damage of the circuit components and the erroneous discharge owing to excessive voltage fluctuation.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 9, 2004
    Inventor: Jeong Pil Choi
  • Publication number: 20040246206
    Abstract: The present invention relates to a plasma display panel, and more particularly, to an apparatus for driving a plasma display panel and method thereof. The method for driving the PDP according to the present invention includes the steps of: setting a sustain period where a specific voltage is maintained for a predetermined time period between first and second periods whose voltage varies, in the ramp waveform, and supplying the ramp waveform to electrodes. The apparatus for driving the PDP according to the present invention includes an initialization driving circuit for generating a ramp waveform including a sustain period where a specific voltage is maintained for a predetermined time period between first and second periods whose voltage varies and supplying the ramp waveform to electrodes.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 9, 2004
    Inventor: Jeong Pil Choi
  • Publication number: 20040246207
    Abstract: A PDP display apparatus driving method for performing multi-level gradation display by constituting one frame of a plurality of subfields assigned different weights, wherein in a subfield in which a relative luminance ratio corresponds to a lowest weight, display is performed according to discharges in two periods only, the periods being an initialization period and a write period.
    Type: Application
    Filed: July 12, 2004
    Publication date: December 9, 2004
    Inventor: Kazuhiro Yamada
  • Publication number: 20040246208
    Abstract: A light emitting element deteriorates with time. Therefore, a method for reducing a lighting time is suggested to obtain a long life light emitting element. However, when the proportion (duty ratio) that a lighting time occupies per one horizontal scan period is reduced, the apparent luminance is also lowered. According to the invention, a light emitting element is controlled so that a light emitting period 205 and a non-light emitting period 206 are switched alternately at least once during a sustain period 203 in synchronism with a control signal. Thus, instantaneous lighting time can be reduced enough to reduce the duty ratio while maintaining the apparent luminance.
    Type: Application
    Filed: December 10, 2003
    Publication date: December 9, 2004
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Asami Machida
  • Publication number: 20040246209
    Abstract: An active matrix organic light-emitting diode (OLED) display and pixel structure thereof. The pixel structure comprises a first transistor, a storage capacitor, a second transistor, and an OLED. The first transistor has a gate terminal coupled to a scan signal and a drain terminal coupled to a data signal. The storage capacitor has two terminals coupled to a source terminal of the first transistor and a reference node with a second voltage. The second transistor has a gate terminal coupled to the source terminal of the first transistor and a source terminal coupled to the reference node. The OLED has a cathode coupled to a drain terminal of the second transistor and an anode coupled to a first voltage, higher than the second voltage. The second transistor is an amorphous silicon thin film transistor (a-Si TFT), and an equivalent channel width/length (W/L) ratio of the second transistor exceeds 10.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 9, 2004
    Inventor: Chih-Feng Sung
  • Publication number: 20040246210
    Abstract: A novel driving method is provided in which source line inverting drive or dot inverting drive is performed for a case of driving a plurality of source lines by one D/A converter circuit in a source signal line driver circuit of an active matrix image display drive that corresponds to digital image signal input. In a first driving method of the present invention, two systems of grey-scale electric power supply lines are supplied to a source signal line driver circuit in order to obtain output having differing polarities from a D/A converter circuit, switches for connecting to the two systems of grey-scale electric power supply lines are prepared in each D/A converter circuit, the grey-scale electric power supply lines connected to each D/A converter circuit are switched in accordance with a control signal input to the switches, and source line inverting drive or dot inverting drive are performed.
    Type: Application
    Filed: June 7, 2004
    Publication date: December 9, 2004
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Munehiro Azami
  • Publication number: 20040246211
    Abstract: A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Applicant: LeapFrog Enterprises, Inc.
    Inventors: Michael Perkins, Peter Nevil Milford, Kim Voskuil, Larry Lynch, Julie Wu Kuei Yao Willey
  • Publication number: 20040246212
    Abstract: An image display apparatus includes a current-controlled light emitting; a transistor which controls a first current flowing through the current-controlled light emitting diode, based on a first voltage applied between the gate and the source of the transistor at a light emitting phase; a capacitor arranged between the gate and the source. The image display apparatus also includes a current determining unit which controls a second current flowing between the source and the drain, based on a third voltage applied thereto at the writing phase. The second voltage is written in the capacitor at a writing phase and depends on the second current.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 9, 2004
    Inventors: Yoshinao Kobayashi, Shinya Ono
  • Publication number: 20040246213
    Abstract: A display is disclosed having crossover connections effecting dot inversion. The display includes a panel substantially comprising a subpixel repeating group, the group having an even number of subpixels across a first direction. The display also includes a driver circuit coupled to the panel providing image data signals to the panel, the signals effecting substantially a dot inversion scheme to the panel. The display also includes a plurality of crossover connections from the driver circuit to the columns of the panel such that same color subpixels across the first direction such that the polarities of the same color subpixels substantially alternate.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Inventors: Thomas Lloyd Credelle, Matthew Osborne Schlegel
  • Publication number: 20040246214
    Abstract: A video sampling circuit of a liquid crystal display with a merit of feed-through voltage reduction was disclosed. The sampling circuit comprises a first thin film transistor (TFT) and a counteracting device. The first TFT has a first electrode to receive the analog signal, a control electrode to receive the clock signal, and a second electrode, and samples the analog signal when the clock signal is at a first logic level. The counteracting device is coupled to the second electrode. When the clock signal is changed from the first logic level to a second logic level, a feed-through voltage drop caused by a parasitic capacitor between the second electrode and the control electrode of the first TFT is reduced.
    Type: Application
    Filed: February 20, 2004
    Publication date: December 9, 2004
    Applicant: AU Optronics CORP.
    Inventors: Jian-Shen Yu, Wei-Jen Lo, Chang-Yu Chen
  • Publication number: 20040246215
    Abstract: A driving circuit for a liquid crystal display device includes a reference voltage source, a first switch connected to the reference voltage source, a second switch connected to the first switch, a PUMP signal generator connected to the first and second switches, the PUMP signal generator oppositely adjusting the first and second switches, a capacitive element connected to the first and second switches, a third switch connected to the second switch, and a reset voltage source connected to the third switch.
    Type: Application
    Filed: March 8, 2004
    Publication date: December 9, 2004
    Applicant: LG.Philips LCD Co., Ltd.
    Inventor: Juhn-Suk Yoo
  • Publication number: 20040246216
    Abstract: The invention provides a driving method for an electro-optical apparatus, the electro-optical apparatus, and electronic equipment in which unevenness of luminance in the vertical direction can be controlled. A data signal is written to pixels in a first sub field SF1 and a non-data signal, having the same polarity as the data signal, and of the maximum voltage is written to the pixels in a second sub field SF2 in each frame. When proceeding from SF1 to SF2, variations in potential applied to each signal line can be decreased, and the amount of leakage of each pixel electrode potential is reduced. After having obtained a black display (in the case of a normally white mode) by writing the non-data signal, a data signal having the opposite polarity from the data signal in the previous frame is written to the pixels.
    Type: Application
    Filed: April 14, 2004
    Publication date: December 9, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroyuki Hosaka
  • Publication number: 20040246217
    Abstract: A liquid-crystal display apparatus free from chrominance non-uniformity. In a liquid-crystal display apparatus with a primary color video signal and a common voltage supplied to a liquid-crystal display panel, a correction signal for canceling the chrominance non-uniformity is superimposed on the primary color video signal.
    Type: Application
    Filed: March 29, 2004
    Publication date: December 9, 2004
    Inventors: Takashi Hirakawa, Hiroyuki Yoshine
  • Publication number: 20040246218
    Abstract: A method of manufacturing a color wheel with filter sectors is disclosed. A resist film formed on a disk-like substrate of the color wheel is shaped into a mask pattern by photo processing, a metal mask which has openings configured similar to the filter sectors but having a slightly larger area than those is set on the substrate, and optical interference filters of a dielectric multi-layer film are formed by an evaporation method or a sputtering method, whereby the optical interference filters are formed so as to cover very limited portions of the mask pattern so that at lift-off process, resist remover can penetrate into the mask pattern from most portions of the mask pattern thus enabling the mask pattern to be removed easily and quickly.
    Type: Application
    Filed: April 22, 2004
    Publication date: December 9, 2004
    Applicant: MINEBEA CO., LTD.
    Inventor: Kuniyuki Takao
  • Publication number: 20040246219
    Abstract: A liquid crystal display is provided, which includes: a liquid crystal panel including a gate line, a data line, and a pixel including a switching element connected to the gate line and the data line; a gate driver applying a gate signal for controlling the switching element to the gate line; and a data driver selecting gray voltages corresponding to gray signals and applying the selected gray voltages to the data line. The gate signal includes a gate-on voltage for turning on the switching element and a gate-off voltage for turning off the switching element.
    Type: Application
    Filed: September 17, 2003
    Publication date: December 9, 2004
    Inventor: Seung-Hwan Moon
  • Publication number: 20040246220
    Abstract: An apparatus for driving a display device includes a timing controller and a data driver. The timing controller encodes first gray scale data of a present frame, decodes encoded second gray scale data of a previous frame, compares the first gray scale data with the second gray scale data, and generates compensated gray scale data based on a result of comparing the first gray scale data with the second gray scale data. The data driver generates data signal based on the compensated gray scale data to provide the data lines with the data signal. The gray scale data are encoded so that the toggle number between adjacent data pins into which the gray scale data are output may be reduce. The encoded gray scale data are stored in a memory. Thus, the power consumption is reduced, and the EMI may be reduced.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 9, 2004
    Inventor: Man-Bok Cheon
  • Publication number: 20040246221
    Abstract: Liquid crystal is supplied with a voltage pulse group including a reset period, a selection period and a retention period for drawing an image, and a time Ts (ms) from end of the reset period to start of the retention period and a time Tlc (ms) required for transition of the liquid crystal from a homeotropic state to a spiral structure state provide a ratio of Ts/Tlc satisfying a relationship (1) of (0.4≦Ts/Tlc≦1.0) when drawing the image. Thereby, contrast and a gamma curve can be appropriately provided to perform good display.
    Type: Application
    Filed: November 4, 2003
    Publication date: December 9, 2004
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventor: Tomoo Izumi
  • Publication number: 20040246222
    Abstract: The invention provides a semiconductor integrated circuit having a zooming function independently in a driver IC for driving a display device. The semiconductor integrated circuit can be a semiconductor integrated circuit which respectively outputs a plurality of two-dimensional images of different sizes according to a mode signal from a plurality of output terminals. It can include select signal shift circuits and the like which, in a first mode, synchronize with one of a rise-up or a fall of a clock signal and sequentially supply a select signal to each of select signal supply terminals, and, in a second mode, synchronize with the rise-up and the fall of the clock signal and sequentially supply the select signals to two of select signal supply terminals at a time.
    Type: Application
    Filed: April 29, 2004
    Publication date: December 9, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Atsushi Ishikawa
  • Publication number: 20040246223
    Abstract: A data transmission method and apparatus that is adaptive for minimizing the power consumption and the electromagnetic interference. A bit data to be transmitted is delayed during at least one bit interval. The bit data to be transmitted is substituted by an identity to the delayed bit data. The identity is transmitted to a transmission line.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 9, 2004
    Inventors: Sang Chang Yun, Sung Woong Moon
  • Publication number: 20040246224
    Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value During a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 9, 2004
    Inventors: Chung-Kuang Tsai, Li-Ru Lyu
  • Publication number: 20040246225
    Abstract: This invention is an image display device for performing color display of an image using two spatial light modulators. The image display device has a first spatial light modulator (52) for modulating a first wavelength range component of illuminating light from an illuminating light source (10), dichroic mirrors (40), (41) for separating second and third wavelength range components of the illuminating light and condensing the respective wavelength range components, a second spatial light modulator (50) for modulating the second and third wavelength range components, and a dichroic mirror (60) for combining modulated light emitted from the first and second spatial light modulators (52), (50).
    Type: Application
    Filed: March 17, 2004
    Publication date: December 9, 2004
    Inventors: Hiroshi Mukawa, Yoshinori Tanaka
  • Publication number: 20040246226
    Abstract: An inverter is provided, which includes: a voltage converter that converts a DC voltage from an external device into an AC voltage to drive at least a lamp and includes a primary coil and first and second secondary coils connected in series; a current sensor that senses at least a current flowing in the first or second secondary coil and generate at least a sensing signal based on the sensed at least a current; a feedback signal generator that generates a feedback signal based on the at least a sensing signal from the current sensor; and a controller that controls the voltage converter based on the feedback signal such that a tube current flowing in the at least a lamp keeps substantially constant.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 9, 2004
    Inventor: Seung-Hwan Moon
  • Publication number: 20040246227
    Abstract: A display device includes a dynamic ratioless shift register which is operated in a stable manner and can expand the degree of freedom of design. In the dynamic ratioless shift register which is provided with thin film transistors having semiconductor layers made of p-Si on a substrate surface, a node which becomes the floating state is connected to a fixed potential through a capacitance element.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 9, 2004
    Inventors: Toshio Miyazawa, Iwao Takemoto, Atsushi Hasegawa, Masashiro Maki, Kazutaka Goto
  • Publication number: 20040246228
    Abstract: A method of editing a character string displayed on a touchscreen with an indicator means. A character string comprising a plurality of characters is displayed on the touchscreen. The character string is edited in response to an indication made with the indicator means such that the characters after the indication point are deleted from the character string. The character string may be a network address displayed in an address field of a browser program, whereby the loading of the network address according to the edited character string is automatically initiated by the browser program in response to the editing of the character string.
    Type: Application
    Filed: February 6, 2004
    Publication date: December 9, 2004
    Applicant: Nokia Corporation
    Inventor: Mikko Nurmi
  • Publication number: 20040246229
    Abstract: Using an imaged image taken by a pointing apparatus, information to determine a position to be pointed at is acquired so as to display a pointer marka camera built-in type portable telephone, for example, is employed as a pointing apparatus, and the range of an arbitrary position on a display image projected by image display device, such as a projector, is imaged by the imaging device, so as to output imaged image information.
    Type: Application
    Filed: March 24, 2004
    Publication date: December 9, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Norihiko Yamada
  • Publication number: 20040246230
    Abstract: A position detection system includes a position pointer and a position detector. The “blind” area in which a position pointed to by a position pointer is undetectable is minimized. A transmission coil selector selects one of a plurality of transmission coils. A signal is generated by a transmission signal generator and supplied to a selected transmission coil. The selected transmission coil transmits the signal to the position pointer. A reception sensor coil selector selects a plurality of sensor coils. A position-indicating signal transmitted from the position pointer is received by each selected sensor coil, and a position pointed to by the position pointer is calculated from the received position-indicating signals. The position detection system loop coils are part of a resonant LC transmission circuit and are excited with a pulsed carrier signal to maximize the strength of the transmission signal, while dissipating relatively little power.
    Type: Application
    Filed: March 25, 2004
    Publication date: December 9, 2004
    Inventors: Yasuo Oda, Toshihiko Horie
  • Publication number: 20040246231
    Abstract: A mouse which truly performs at a low load level, significantly reducing high statistics rates of damaged muscle tissue and severe injury. The mouse does not require lifting to get back into sync and can adjust to the varying hand structure of different users, and apply contour in effective areas as to support the hand in such a way that strain is concentrated on the larger muscles of the lower arm rather than specific muscles of the wrist and fingers.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Inventor: Thomas Large
  • Publication number: 20040246232
    Abstract: An optic mouse includes a housing having a bottom casing and a top cover mounted to the bottom casing, a circuit board mounted in the housing and a splitter mounted on the bottom casing. The bottom casing defines an opening. A detecting device is mounted to the circuit board and has a receiving portion in alignment with the opening of the bottom casing. A laser source is arranged on one side of the detecting device. The splitter has top and bottom faces respectively opposing the receiving portion of the detecting device and the opening of the bottom casing and a side face opposite to the laser source. By this, a light beam from the laser source is made convergent and is prevented from divergence by making use of the polarity characteristics of the light from the laser source and the splitter. Excellent operability of the mouse can be realized.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Applicant: Unity Opto Technology Co., Ltd.
    Inventors: Wei Chang, Hsien-Yeh Hung
  • Publication number: 20040246233
    Abstract: An optical mouse includes a bottom casing, a top cover mounted to the bottom casing to define an interior space therebetween, a circuit board and a lens set arranged in the interior space. The bottom casing defines an opening. A detecting device is mounted to the circuit board. A receiving portion and a light emitting diode (LED) are mounted to a bottom side of the detecting device in alignment with a slot defined in the circuit board. A solder pad to which an electrical conductor is connected forms a central bore and is positioned on a circumferential margin of a light projection surface of the LED to allow light projected from the light projection surface to transmit through the central bore.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Applicant: Unity Opto Technology Co., Ltd.
    Inventors: Wei Chang, Hsien-Yeh Hung
  • Publication number: 20040246234
    Abstract: A virtual reality display apparatus is disclosed which includes a display (100) arranged to display an image (130) viewable in three dimensions in an image space and, spaced from the image space, a three-dimensional work space (240), operation of a tool (230) within the work space being viewable in the image space.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 9, 2004
    Inventors: Luis Serra, Ralf Alfons Kockro, Hern Ng
  • Publication number: 20040246235
    Abstract: The present invention involves a kit to update a digital data processing system, such as a computer or PC, so that it can make direct use of the keyboard in integrating a non-existent supplementary symbol such as, for example, the Euro symbol. It comprises a software medium on which is recorded the update software for using a supplementary symbol on a keyboard, and an interchangeable key that additionally bears the representation of the supplementary symbol.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 9, 2004
    Inventor: Eric Aubry
  • Publication number: 20040246236
    Abstract: A remote controllable electronic whiteboard system and method of operating the remote controllable electronic whiteboard system are provided. An exemplary remote controllable electronic whiteboard system includes an electronic whiteboard in communication with a remote control device. Methods of operating the electronic whiteboard system including the use of a remote control device are also provided.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 9, 2004
    Applicant: Greensteel, Inc.
    Inventors: Peter Hildebrandt, James D. Watson, Neal A. Hofmann, A. Joel Assaraf, Michael H. Dunn, Ian G. Hutchinson, Gregg Draudt, Sam Millen