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| Number | Title | Issue Date |
| 7373574 | Semiconductor testing apparatus and method of testing semiconductor A semiconductor testing apparatus, includes a test signal generating unit that generates a test signal corresponding to a test pattern to output the generated test signal to a device under test (DUT); a comparison signal generating unit that generates a comparison s... | 05/13/2008 |
| 7372195 | Electron beam source having an extraction electrode provided with a magnetic disk element An electron beam source for use in an electron gun. The electron beam source includes an emitter terminating in a tip. The emitter is configured to generate an electron beam. The electron beam source further includes a suppressor electrode laterally surrounding the ... | 05/13/2008 |
| 7355563 | Display apparatus and display device A display apparatus (1) for generating a stereoscopic image by superimposing a plurality of images at a predetermined interval from each other on the view line of the viewer, the apparatus comprising: a first display unit (11) having a plurality of emi... | 04/08/2008 |
| 7348722 | Field emission device with focusing control electrode and field emission display A field emission device having a focusing control electrode, and a field emission display (FED) including the same. The field emission device includes a substrate, a cathode electrode formed on the substrate, a focusing control insulating layer formed on the cathode... | 03/25/2008 |
| 7310115 | Imaging device with boosting circuit An imaging device that is activated quickly and prevents deterioration of an image signal. The imaging device includes a boosting circuit for boosting an input voltage to generate a boosted voltage. A solid state imaging device receives the boosted voltage and gener... | 12/18/2007 |
| 7289126 | Gamma-corrected texel storage in a graphics memory Methods, circuits, and apparatus for handling gamma-corrected texels stored in a graphics memory. On-the-fly gamma-to-linear and linear-to-gamma conversions are performed such that gamma-corrected texels are provided to circuits that are able to process them, while ... | 10/30/2007 |
| 7286175 | Bias control circuitry for cathode ray tube beam currents Bias control circuitry and method for use in controlling one or more cathode ray tube (CRT) beam currents. ... | 10/23/2007 |
| 7277136 | Adaptive bandwidth control in a kinescope amplifier A method for controlling dissipation in a video amplifier for a display signal. The method comprises the steps of setting a first current for establishing a first gain bandwidth product in the video amplifier. Generating a control signal in accordance with a slew ra... | 10/02/2007 |
| 7268748 | Subpixel rendering for cathode ray tube devices A cathode ray tube (CRT) device increases image resolution using spatial or temporal techniques. The CRT device includes a plurality of electron guns that each produce an electron beam and a plurality of separate phosphor dots, each corresponding to one of a plurali... | 09/11/2007 |
| 7202837 | Information output apparatus This invention provides an information output apparatus which outputs tactile information or the like corresponding to the surface state of an object as three-dimensional information together with image information, and allows the user to easily discriminate the sur... | 04/10/2007 |
| 7183713 | Auxiliary coil driver circuit for a cathode ray tube A magnetic field compensation winding arrangement for a cathode ray tube includes a magnetic field compensation winding positioned on the cathode ray tube to compensate for an ambient magnetic field. An operational amplifier is used for generating a magnetic field c... | 02/27/2007 |
| 7175495 | Method of manufacturing field emission device and display apparatus A method of manufacturing a field emission device having emitter shapes, comprise the steps of forming a first original plate having a major surface provided with emitter shapes, by cutting a surface portion of a base material, forming a first material layer on the ... | 02/13/2007 |
| 7166972 | Vertical deflection apparatus A vertical deflection apparatus supplies a vertical deflection current to a vertical deflection coil to deflect an electron beam in the vertical direction of a screen. The apparatus includes: a vertical deflection current output circuit that outputs a vertical defle... | 01/23/2007 |
| 7161605 | Display device for construction machine A display device that has a display screen is disclosed that has the ability to prevent reflections of the display screen from appearing on glass, without lowering the visibility of a display portion of the display screen. The brightness of the display color of eith... | 01/09/2007 |
| 7133148 | Digital camera for image device calibration The invention is directed to an apparatus for calibrating an output of an image output device, comprising an image input device configured to image an output of the image output device; and a test pattern generator having an output of a dynamic test patch area and a... | 11/07/2006 |
| 7112918 | Microdischarge devices and arrays having tapered microcavities A microdischarge device has a semiconductor layer, an intermediate layer, and a conductive layer. A tapered cavity is disposed in at least the semiconductor layer. ... | 09/26/2006 |
| 7102696 | Method of effecting various anti compensation processes on segmented gray level of input image on plasma display panel A process of effecting various anti compensation processes on input image on a plasma display panel comprises the steps of a) performing a gamma (i.e., γ equal to 0.45) compensation process on a video signal received by the PDP with respect to a γ; b) dividing the... | 09/05/2006 |
| 7071629 | Image display device incorporating driver circuits on active substrate and other methods to reduce interconnects Flat panel displays, such as field emission displays (FEDs), plasma displays, liquid crystal displays (LCDs), and electroluminescent displays (ELs), are provided incorporating driver circuitry on the same substrate as the active display region of the display device ... | 07/04/2006 |
| 7046255 | Hardware-based accelerated color correction filtering system A hardware-implemented color video data correction filtering system includes a plurality of linearization tables to gamma decompensate input color video data referenced to a non-linear color space, a plurality of a set of pre-calculated gamut shifting arrays to comp... | 05/16/2006 |
| 7042522 | Adaptive contrast enhancement method using time-varying nonlinear transforms on a video signal The contrast of a time varying video signal is enhanced. Each digital picture is represented by samples having gradation levels in a range from a lower limit C to an upper limit U. The mean value of the gradation levels of the samples representing a first digital pi... | 05/09/2006 |
| 7042518 | Digitally controlled variable frequency HF emphasis circuit for use in video displays A sharpness filter processes a video signal that is to be displayed in a windowed environment. The windowed environment may contain windows that for displaying television images derived from video standards such as NTSC, PAL, and SECAM. Displaying windowed televisio... | 05/09/2006 |
| 7027098 | Picture-signal processing apparatus and method using weighting for black-level control A digitized luminance signal, representing the luminance component of a picture signal, is adjusted according to data stored in a memory. The data are output according to the value of the digitized luminance signal and multiplied by a weighting signal generated acco... | 04/11/2006 |
| 7006056 | Three-dimensional display apparatus A three-dimensional display apparatus capable of producing an image in three dimensions without the aid of optical illusions or perspective trickery. The display apparatus is comprised of a plurality of pixels which are, in turn, comprised of a plurality of cells. T... | 02/28/2006 |
| 6970203 | Automatic cut-off system The automatic cut-off system includes a video data processing circuit, a cut-off control circuit, a drive circuit, and a level control section. The video data processing circuit adds a cut-off reference pulse having a predetermined level to primary-color signals of ... | 11/29/2005 |
| 6949752 | Electron beam apparatus and high-voltage discharge prevention method Disclosed is an electron beam apparatus and method which can retain the state that minimizes the amount of water content contained at a gap between a high-voltage cable and a high-voltage introduction insulator to thereby prevent creation of high-voltage discharge a... | 09/27/2005 |
| 6948819 | Three-dimensional display using optical fibers of different lengths A system for viewing 3-D images that comprises an image source (50), a computer (105) and a television screen (110). The television screen is divided into a plurality of sections (115–130), with each section displaying an image represen... | 09/27/2005 |
| 6937287 | Video processing apparatus and method In order to reduce the total capacity of a ROM used for adjustment of the black level and the white level of a digitized luminance signal for a television receiver, for example, a comparator compares the input luminance signal with a predetermined threshold value, a... | 08/30/2005 |
| 6922011 | Deflection system for cathode ray tubes The present invention relates to a display device comprising a cathode ray index tube (1) having a neck portion (1″) and a screen portion (1). The display device comprises an electron gun assembly (3) for generating a plurality of elect... | 07/26/2005 |
| 6919570 | Electron beam sensor A sensing device for sensing an electron beam includes a vacuum chamber having an electron permeable window for allowing electrons from the electron beam to enter vacuum chamber. An electrode extends within the vacuum chamber for receiving at least a portion of the ... | 07/19/2005 |
| 6906470 | Method and system for controlling electron beams from field emission cathodes Apparatus and method are provided for using a multi-element field emission cathode in a color cathode ray tube. The field emission cathode may have from four to ten field emission arrays linearly arranged. The arrays are preferably formed from carbon-based material.... | 06/14/2005 |
| 6903519 | Multi-element field emission cathode Apparatus and method are provided for using a multi-element field emission cathode in a color cathode ray tube. The field emission cathode may have from four to ten field emission arrays linearly arranged. The arrays are preferably formed from carbon-based material.... | 06/07/2005 |
| 6888575 | Digital cut-off control loop for TV using speeding and blanking circuits An improved digital cut-off control loop for black level adjustment in a video processor for controlling RGB output signals. The improved circuit advantageously provides a higher resolution of the black level adjustment, and a short cut-off convergence time when the... | 05/03/2005 |
| 6703802 | Saturation suppression of CRT output amplifiers The invention provides a circuit for controlling a cathode ray tube. The circuit comprises a source of input color signals (Uin (R), Uin (G), Uin (B)) for the primary colors of the cathode ray tube. Output amplifiers are c... | 03/09/2004 |
| 6686710 | Circuit and method for regulating current using autobias A circuit for regulating a signal, such as a cathode current. The circuit has an input stage for inputting a signal and for producing a sense signal based thereon. The circuit may input timing signals and have a first stage for comparing a first reference... | 02/03/2004 |
| 6674253 | Scan velocity modulation technique A video signal is split into a first signal and a second signal. The first signal includes low amplitude/high frequency components of the video signal, which can be properly amplified by a video amplifier. The second signal includes high amplitude/high fr... | 01/06/2004 |
| 6633142 | Cathode ray tube with low dynamic correction voltage A cathode ray tube is provided having an electron gun equipped with a main lens having a function of controlling a shape of an electron beam spot which is deflected to the peripheral portion of a display screen, to improve a resolution at the peripheral p... | 10/14/2003 |
| 6580233 | Cathode ray tube and intensity controlling method Disclosed is a cathode ray tube and a intensity controlling method achieving a reduced amount of factors for correcting intensity prepared and capable of performing proper intensity control so that the joint portion of split picture planes is inconspicuou... | 06/17/2003 |
| 6563276 | CRT display apparatus A CRT display apparatus capable of displaying images in high contrast and high brightness without causing noises and halftone-reproduction degradation within dark areas is disclosed. The apparatus includes a circuit for generating an R-control signal, a G... | 05/13/2003 |
| 6545717 | Display system having selectable automatic CRT cutoff stabilization or AKB with CRT feedback current simulation A display system (10) which includes a CRT feedback current simulating circuit (20) to simulate the cathode feedback current directly from the from the red, green and blue output biases of the video processor (13). Furthermore, the display system (10) app... | 04/08/2003 |
| 6528958 | Display device and cathode ray tube The invention relates to a display device comprising a cathode ray tube including an electron source and an electron beam guidance cavity having an entrance aperture and an exit aperture for concentrating electrons emitted from the cathode in an electron ... | 03/04/2003 |
