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| Number | Title | Issue Date |
| 7768217 | Circuit and method for reducing east-west geometry mismatch between the top and bottom of a raster display The present disclosure describes a technique for reducing east-west geometry mismatch between the top and bottom of a raster display. This is accomplished by generating a horizontal correction signal that does not have any discontinuities. Since there are no discont... | 08/03/2010 |
| 7368984 | Switching class A-B amplifier A circuit configuration and a method enables less-expensive bipolar switching devices to be employed in high-accuracy class D amplifiers. A constant-bias current is provided between the switching devices of a class D amplifier, and, through feedback or appropriate a... | 05/06/2008 |
| RE39962 | Method and apparatus for controlling power consumption in a tilt correcting coil A method for controlling the power consumption in a tilt correcting coil is disclosed. The power consumption is corrected Controlling power consumption in the tilt correcting coil for correcting to correct the tilt of the images of on the cathode ray tube. If W... | 12/25/2007 |
| 7268711 | Method and circuit for amplitude compensation in a digital-to-analog converter An amplitude-compensated digital-to-analog converter circuit and method of compensation. A unipolar digital-to-analog converter is provided, having a reference connection and a pair of differential, unipolar signal outputs. A sensing circuit senses the common mode c... | 09/11/2007 |
| 7262561 | Method for controlling power supply through multiple modulation modes A method for controlling power supply through multiple modulation modes aims to control an inverter of a selective characteristic through a cycle control signal of varying modulation modes to ensure that the inverter and the load on the rear end function in a reliab... | 08/28/2007 |
| 7262563 | Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster A method and apparatus used to step and correct the position of raster lines in a sinusoidal or zig-zag deflection system. By combining the magnetic flux generated with a rotation “twister” coil and a vertical deflection coil, scan lines can be uniformly spaced ... | 08/28/2007 |
| 7248233 | Control circuit and process for a cathode ray tube display control apparatus A control circuit of a power supply delivering a supply current to an inductor connected in series with the horizontal deflection yoke of a cathode ray tube display, the inductor being the primary coil of a transformer operatively connected for delivering a rectifie... | 07/24/2007 |
| 7233118 | Line deflection circuit for a television receiver A line deflection circuit for a television receiver having a deflection coil, an S capacitor for S correction of the linearity of the deflection, the capacitor being connected in series with the deflection coil, and having means for changing over the linearity of th... | 06/19/2007 |
| 7209940 | Temperature compensated square function generator Temperature compensation may be provided to a square function generator by adjusting a tail current of the square function generator. Temperature compensation of the square function generator may be provided, for example, by a second square function generator circui... | 04/24/2007 |
| 7202488 | Correction system, method of correcting deflection distortion, program and method for manufacturing a semiconductor device A method of correcting deflection distortion includes dividing a deflection area to which a charged-particle beam is deflected into equal initial blocks as an initial setting, calculating an initial aberration amount for each of the initial blocks generated when the... | 04/10/2007 |
| 7199199 | Perfluorinated polymers Amorphous perfluorinated homopolymers and copolymers of perfluorodioxoles of formula (IA): wherein R′F is equal to RF or ORF wherein RF is a linear or branched perfluor... | 04/03/2007 |
| 7199533 | Convergence control apparatus for video display A convergence control apparatus for a video display is provided. In the apparatus, a convergence controller receives a vertical synchronization signal and a horizontal synchronization signal and then outputs a vertical convergence correction voltage and a horizontal... | 04/03/2007 |
| 7190407 | System, method and apparatus for sandcastle signal generation in a television signal processing device A system, method and apparatus are provided for generating 98 a sandcastle signal in a television signal receiver 90, and utilizing the sandcastle signal during television signal processing. In one form, the sandcastle signal is generated by subtractin... | 03/13/2007 |
| 7187371 | Display apparatus A display apparatus having a high voltage FBT driving circuit includes a transformer having a primary and a secondary coil, a high voltage detector to detect an output voltage of the secondary coil, a high voltage compensator to output a high voltage compensating si... | 03/06/2007 |
| 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 |
| 7176775 | Transformer and discharge lamp lighting device A transformer and discharge lamp lighting device are disclosed. The transformer includes a closed-magnetic circuit type of core having a gap, a primary winding 7p, a secondary winding 7s and a detecting terminal located on the secondary w... | 02/13/2007 |
| 7170550 | Television data management system Information about various adjustments made to TVs during assembly is entered into a database after each adjustment, to facilitate monitoring and reporting of the assembly process, so that corrective action when appropriate can be taken more quickly. ... | 01/30/2007 |
| 7170239 | Circuit and method for reducing east-west geometry mismatch between the top and bottom of a raster display The present disclosure describes a technique for reducing east-west geometry mismatch between the top and bottom of a raster display. This is accomplished by generating a horizontal correction signal that does not have any discontinuities. Since there are no discont... | 01/30/2007 |
| 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 |
| 7164518 | Fast scanner with rotatable mirror and image processing system A scanner for obtaining an image of an object placed on an at least partially transparent platform, wherein the platform is defined by edge portions and has at least including a first scan area and a second scan area. In one embodiment, the scanner includes a white ... | 01/16/2007 |
| 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 |
| 7141942 | Digital device for correcting the image formed on the screen of a cathode ray tube Device for correcting the line and/or frame fields of a deflector for cathode ray tube comprising: a current sensor for evaluating the value of a line current Il a series of comparators intended to compare the value of the line current Il w... | 11/28/2006 |
| 7142202 | Driving circuit and display device In a circuit driving a capacitive load Cp, current passed through a transistor Q3, a diode D1 and a recovering coil L is passed through lines L1, L2, and the inductance components of the lines L1 and L2, and the drain-source... | 11/28/2006 |
| 7102302 | Waveform generator for controlling an electron beam in a cathode ray tube A parabola generator for providing dynamic correction includes a capacitor source of a parabolic input signal at a frequency related to a horizontal deflection frequency coupled to a first terminal of the capacitor. A diode switch is coupled to a voltage at a refere... | 09/05/2006 |
| 7098613 | High voltage deflection circuit A resonant pulse voltage having a positive polarity is applied by a first resonant circuit and a third resonant circuit to a horizontal deflection coil included in the first resonant circuit, and a resonant pulse voltage having a negative polarity which is opposite ... | 08/29/2006 |
| 7075240 | Control of electroluminescent displays A controller 2 is provided for use with a multi-segment electroluminescent display 1. Control signals C1–C5 control a plurality of half H-bridges H1–H5, the terminals of the half H-bridges being connected respectively to... | 07/11/2006 |
| 7064501 | Sawtooth line circuit for a cathode ray tube A circuit arrangement is described for generating a sawtooth current in a cathode ray tube deflection coil. The circuit arrangement has a first and a second multiresonant section. The sections are arranged in series. The cathode ray tube deflection coil is part of t... | 06/20/2006 |
| 7062242 | Dynamic path gain compensation for radios in wireless communication systems A DPRAM is placed in the RF path before the digital to analog converter, to provide dynamic path gain compensation to the digital signal prior to conversion to an analog signal. The DPRAM stores corrections to the signal to compensate for amplitude losses in the sig... | 06/13/2006 |
| 7061192 | Switching-type vertical deflection output circuit A switching-type vertical deflection output circuit comprises: an output-stage circuit constituted of first and second diodes and first and second switching elements, a smoothing circuit, a vertical deflection coil, a reference vertical sawtooth voltage generation u... | 06/13/2006 |
| 7061741 | Method for magnetic field reduction using the decoupling effects of multiple coil systems A method for reducing the magnetic field level in the vicinity of two or more connected reactors wherein each reactor is a magnetic dipole and wound so that currents flow in opposite directions and resulting in magnetic fluxes opposing each other. ... | 06/13/2006 |
| 7053930 | Triangular bidirectional scan method for projection display One embodiment disclosed relates to a method for bi-directional progressive scanning in a display system. The method includes receiving image data for an image to be displayed, forward scanning the image data in a first direction using a linear array of controllable... | 05/30/2006 |
| 7053889 | Circuit for detecting active video area for display device, method for detecting active video area for display device and coordinate mapping method using detected active video area A circuit for detecting an active video area for a display device, a method for detecting an active video area for a display device, and a coordinate mapping method using the detected active video area are provided. The circuit for detecting an active video area for... | 05/30/2006 |
| 7009823 | Energy recovery circuit and energy recovery method using the same An energy recovery circuit wherein an energy stored in an inductor is applied to a panel to reduce a charge time and improve an energy recovery efficiency. In the energy recovery circuit, a switch, a capacitor and an inductor is provided to form a closed loop. A pan... | 03/07/2006 |
| 7002333 | Process and device for compensating the low frequency magnetic field in an inductive signal coupling unit Process and device for compensating the low frequency magnetic field in an inductive signal coupling unit. According to the invention the coupling unit comprises a ferromagnetic core (30) which encloses a conductor through which a low frequency current (1 | 02/21/2006 |
| 6995526 | Digitally controlled vertical C linearity correction with constant start and end points without using an AGC A method and circuit for digitally controlled vertical C linearity correction with constant start and end points without using an AGC. A squared voltage and a negative squared voltage are added as a correction voltage to a sawtooth-shaped ramping voltage that is emp... | 02/07/2006 |
| 6980195 | Window brightness enhancement for LCD display An LCD monitor has an LCD panel for displaying a display video signal, and a lighting unit for illuminating the LCD panel. A personal computer, for example, supplies an input video signal and a control signal indicating that the brightness of a portion of the displa... | 12/27/2005 |
| 6972805 | Display of a video signal by means of a line scan An apparatus displays a video signal (VID) by means of a scan (SCAN). The apparatus may be, for example, a television set. The apparatus comprises a device (SCAVEM) for modulating the scanning rate (Vscan) as a function of the derivative (DLUM) of a luminance signal... | 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 |
| 6906757 | Method and system for enhancing resolution in a video signal by digital simulation of analog H-sweep velocity modulation A digital video signal processing system monitors the rate of change of the digital video signal to detect large rates of change that indicate the presence of an object edge in the video image. Upon detection of such an edge, the digital signal is sampled at a varia... | 06/14/2005 |
| 6894731 | Raster distortion correction arrangement Synchronization of a horizontal deflection circuit with horizontal synchronizing signal pulses is obtained by the use of a voltage controlled oscillator (VCO) that is included in a phase-lock loop circuit (PLL). A phase-control loop circuit (PCL) includes a phase de... | 05/17/2005 |
