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| Number | Title | Issue Date |
| 7312564 | Cathode ray tube having an electron gun A cathode ray tube has an electron gun oriented along an axis (Z), comprising a quadrupolar device which comprises three electrodes (5, 6, 7). Each electrode possesses a central aperture, a right lateral aperture and a left lateral aperture all three substant... | 12/25/2007 |
| 7170098 | Electronic assembly including a die having an integrated circuit and a layer of diamond to transfer heat Processes are described whereby a wafer is manufactured, a die from the wafer, and an electronic assembly including the die. The die has a diamond layer which primarily serves to spread heat from hot spots of an integrated circuit in the die. ... | 01/30/2007 |
| 7158193 | Image misconvergence correction apparatus for less switching noise influence Disclosed is an image misconvergence correction apparatus having a correction value generation unit for calculating a convergence correction value to correct misconvergence occurring when a video signal is scanned on a display device; an amplification unit for perfo... | 01/02/2007 |
| 7129655 | Image distortion correction apparatus capable of correcting misconvergence using an amplifier An image distortion correction apparatus is disclosed which can correct misconvergence using a D-class amplifier. The image distortion correction apparatus has an image processor for detecting an image signal and horizontal/vertical synchronous signals from a signal... | 10/31/2006 |
| 7091677 | Deflection yoke and cathode ray tube device An electron beam trajectory controlling device includes a main deflection section having a first main coil and defining a first path and being configured to control a trajectory of an electron traveling along the first path. The main deflection section includes a fi... | 08/15/2006 |
| 7053966 | Adjusting convergence apparatus and method Disclosed is a projection image display apparatus, specified in a convergence adjusting apparatus employing a spline interpolation scheme. In the projection image display apparatus, the convergence adjusting apparatus includes controller for selecting sections arran... | 05/30/2006 |
| 7045976 | High definition electron gun for cathode ray tube Electron gun for cathode ray tube comprising aligned in series along an axis XX′ an electron-emitting cathode K, electrodes G1 and G2 for the formation of an electron beam, a prefocusing electron lens G3, G4, G5, a first quadripo... | 05/16/2006 |
| 7034900 | Color display device and method utilizing convergence correction In a color display device, apparatus and method are provided to produce a convergence correction signal based on digital convergence correction values. The data rate by which the data is supplied to the apparatus varies, depending on the area of the display correspo... | 04/25/2006 |
| 7030548 | Cathode-ray tube apparatus A prefocus lens section is formed by a second grid and a third grid in a substantially rotation-symmetric fashion. A sub-lens section is formed by the third grid and a first segment. A main lens section is formed by a fourth grid and a fifth grid. The third grid is ... | 04/18/2006 |
| 6972807 | Projection television and convergence control method thereof A projection television and a convergence control method thereof are provided. The projection television, which magnifies images displayed on cathode ray tubes (CRTs) for the colors red, green, and blue using lenses and projects the magnified images onto a screen, i... | 12/06/2005 |
| 6952242 | Convergence correction of a CRT screen or projector A control signal for controlling a correction circuit for at least one electron beam that scans a screen line by line, the amplitude of which varies along each line according to a curve of a first type determined by line parameters, each of the line parameters varyi... | 10/04/2005 |
| 6909460 | Median-based dark level acquisition for a frame rate clamp A circuit for determining the median dark level of an image sensor, the circuit comprises a first circuit for comparing a current pixel value and a cumulative median; a storage element for storing the cumulative median level; and a second circuit which utilizes the ... | 06/21/2005 |
| 6853157 | Image distortion compensating apparatus with low switching delay An image distortion compensating apparatus controls a convergence yoke, and includes a compensation value generator for calculating a convergence compensation value for compensating a convergence distortion which occurs while an image signal is emitted onto a displa... | 02/08/2005 |
| 6836062 | Cathode ray tube having color selection apparatus A cathode ray tube including a tube realized through a face panel, a funnel, and a neck; a color selection apparatus including a shadow mask having a an effective area with apertures and a mask frame supporting the shadow mask; an electron gun mounted in the neck an... | 12/28/2004 |
| 6836298 | Apparatus and method for correcting distortion of image and image displayer using the same An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correc... | 12/28/2004 |
| 6828741 | Deflecting yoke apparatus and television receiver A deflecting yoke apparatus comprising first and second frame coils configured to correct a vertical horizontal misconvergence first and second main coils and first and second sub-coils which are wound around a core and configured to deflect in a vertical direction ... | 12/07/2004 |
| 6812654 | Field emission type electron source element, electron gun, cathode ray tube apparatus, and method for manufacturing cathode ray tube The object of the present invention is to provide a field emission device that emits an electron beam bundle whose spot profile on a display screen has as little distortion as possible, and that maintains a stable electron emission property regardless of the length ... | 11/02/2004 |
| 6759815 | Color picture tube device in which YH misconvergence is corrected A group of an upper coma correction coil and an upper four-pole coil is positioned in opposition to a group of a lower coma correction coil and a lower four-pole coil, with respect to an electron beam. A first circuit is composed of a circuit in which the lower four... | 07/06/2004 |
| 6753932 | Method and apparatus for controlling convergence of color signals An image processing apparatus is disclosed by which correction of convergence and correction of distortion of an image can be performed with a high degree of accuracy. Correction data to be used for correction of position errors of the three colors of red, green and... | 06/22/2004 |
| 6711597 | Interpolation method using pre-emphasized input samples A method for producing a plurality of successive output data values defining an output curve that approximates an input curve defined by a plurality of input sample values, the output data values having a higher sampling frequency than the input sample values, the m... | 03/23/2004 |
| 6707509 | Method for adjusting convergence in a projection television receiver A method for adjusting convergence in a projection television receiver, in which a marker contained in a projected image is adjusted by a manipulated variable to illuminate a photosensor arranged adjacent to the projection screen. The method employs two markers whic... | 03/16/2004 |
| 6704758 | Interpolation method for smooth convergence correction A method for generating a convergence correction curve from a plurality of successive output data values determined from a plurality of input sample values smaller in number than the plurality of output data values, the method comprising the steps of: def... | 03/09/2004 |
| 6693398 | Electron gun for CRT The present invention relates generally to an electron gun for a color cathode ray tube, and more particularly to an electron gun for achieving an excellent focus characteristic on the whole screen by forming a dynamic quadruple lens in the electron gun u... | 02/17/2004 |
| 6630803 | Color display device having quadrupole convergence coils The invention relates to a color display device comprising an in-line electron gun (5) for generating three electron beams (6, 7, 8), and a convergence unit (14') to dynamically influence the convergence of the electron beams and deflecting means (51) for... | 10/07/2003 |
| 6600276 | Automatic convergence control method and apparatus for projection television A convergence control method and apparatus for a projection television are provided. The convergence control apparatus includes an image signal decoder, a convergence control unit, and a main microcomputer. The image signal decoder processes an input imag... | 07/29/2003 |
| 6597096 | Color cathode-ray tube electron gun In an inline three-beam system color cathode-ray tube, there is provided an inline three-beam system color cathode-ray tube electron gun in which beam spot shapes of three electron beams on the left and right end portions of a fluorescent screen may be un... | 07/22/2003 |
| 6586893 | Convergence correction device for electron beams in color picture tube and process of using A device for correcting residual mis-convergence errors in a color cathode ray tube, the tube including a narrow-necked section, located at the rear thereof, in which electron guns mounted therein generate forwardly-directed red, blue and green electronic... | 07/01/2003 |
| 6580206 | Color display device with a deflection-dependent distance between outer beams A color display device having an electron gun, a display screen, a color selection electrode and a deflection unit. The distance between the electron beams in the x-direction is dynamically varied, whereby the distance in the deflection space decreases as... | 06/17/2003 |
| 6567058 | Digital convergence correction device and display device A problem to be solved by the invention is to prevent a digital convergence correction device from lowering in precision of correction performed when a relation between screen raster and effective area of picture varies. A vertical display area detection signa... | 05/20/2003 |
| 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 |
| 6552755 | Method for measuring convergence by using a mixed color pattern A method for measuring a convergence of color CRT uses a combination pattern among Red(R), Green(G) and Blue(B) colors on a white pattern when measuring convergence by using a color camera so that convergence is measured with a high degree of precision. T... | 04/22/2003 |
| 6501238 | Apparatus for correcting mis-convergence and geometric distortion in deflection yoke using variable resistance The present invention relates to a deflection yoke, and in particular, to an apparatus for correcting a mis-convergence and geometric distortion in a deflection yoke using a variable resistance, proving a more convenient way to adjust VCR by adjusting the... | 12/31/2002 |
| 6498443 | Color TV tube apparatus and color display tube apparatus A color TV tube apparatus having a horizontal deflection coil for generating a pincushion-shaped horizontal deflection field, which uses a self-convergence method. In such a color TV tube, the horizontal deflection coil is adjusted so that the vertical fo... | 12/24/2002 |
| 6495976 | Color purity measuring method and color purity measuring apparatus The invention is intended to enable the easy measurement of the amount of color purity at each of many measured points. An adjusting coil (9) is provided at a neck portion of a color cathode ray tube (1). Also, a color image pickup means (4) for photograp... | 12/17/2002 |
| 6486622 | Color display device with a deflection-dependent distance between outer beams A color display device comprises an electron gun, a display screen and a color selection electrode as well as a deflection means. The distance between the electron beams is dynamically varied, i.e. the distance between the electron beams in the deflection... | 11/26/2002 |
| 6483262 | Apparatus and method for ring spline convergence correction An apparatus and method for ring spline convergence correction for accurately affecting convergence at the outermost portion of a screen using ring spline interpolation are provided. Convergence correction data between seed data is output through an opera... | 11/19/2002 |
| 6483313 | Method and apparatus for measuring convergence with respect to a color CRT using a color CCD camera An apparatus and method are provided for measuring convergence of the Red-Green-Blue (R.G.B.) signals of a color cathode ray tube (CRT) using a color charge coupled device (CCD) camera. A uniform R.G.B. brightness value is picked up by the color CCD camer... | 11/19/2002 |
| 6480242 | Image display correcting system, image display correcting apparatus and method, and image display apparatus and method An image display correcting apparatus of the invention comprises, broadly, a correction data forming apparatus and an image display apparatus. Correction data for correcting a display state of an image is formed by the correction data forming apparatus on... | 11/12/2002 |
| 6476569 | Deflection apparatus, cathode ray tube apparatus and beam landing adjustment method A landing correction coil is provided at the rear of a horizontal deflection coil of a deflection yoke or at a position where it is closely coupled with the horizontal deflection coil. The landing correction coil is fixed so as to generate a magnetic fiel... | 11/05/2002 |
| 6404149 | Cathode ray tube apparatus An electron gun assembly forms an electron beam generator, pre-focusing lens, sub-lens, and main lens. The sub-lens has a weaker horizontal focusing power than the vertical one, and the main lens has a stronger horizontal focusing power than the vertical ... | 06/11/2002 |
