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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7239354 | Digital image demodulating apparatus A ratio between an aspect ratio of a digital image signal and an aspect ratio of a display device is converted and a presence image part 2 of digital image data decoded by a digital image signal demodulating part is compressed laterally and is shifted to the ... | 07/03/2007 |
| 7187414 | Circuit for stabilizing high tension voltage of CRT, and method thereof Disclosed is a circuit for stabilizing a high tension voltage of a CRT and a method thereof. A feedback unit receives a cutoff voltage from the CRT. A compensating unit calculates a variation quantity of the cutoff voltage on the basis of the cutoff voltage from the... | 03/06/2007 |
| 7082188 | Power source for regulated operation of the deflection coil of an x-ray tube A power source for the operation of a deflection coil for an electron beam of an x-ray tube has a voltage source and a bridge circuit that is connected with each end of the deflection coil, respectively via one power switch in series connection to opposite poles of ... | 07/25/2006 |
| 7073086 | System for controlling a tunable delay by transferring a signal from a first plurality of points along a first propagating circuit to a second plurality of points along a second propagating circuit The clock signal is the dominant source of electromagnetic interference (EMI) for many electronic devices. EMI generated by an electronic device must be suppressed to avoid interference with other electronic devices and to satisfy FCC regulations. EMI emissions are ... | 07/04/2006 |
| 7057336 | Electron-emitting device, electron source and image-forming apparatus as well as method of manufacturing the same An electron-emitting device comprises a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite film. The graphite film shows, in a Raman spectroscopic analysis using a laser ligh... | 06/06/2006 |
| 7023149 | CRT vertical scanning circuit with a low power standby The invention concerns a scanning circuit, comprising a power supply providing a negative voltage on a first terminal (Tdown), an intermediate voltage on a second terminal (Gnd) and a positive voltage on a terminal of a switch (S), the other terminal of the switch b... | 04/04/2006 |
| 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 |
| 6937277 | Image input apparatus employing read region size determination This invention relates to a video camera for inputting an image of an object as an electrical signal. This video camera includes a CCD, a clock selector for selecting a clock having a frequency corresponding to a read object region in which pixels are read out from ... | 08/30/2005 |
| 6897900 | Display apparatus comprising a cathode ray tube (CRT) A display apparatus, for instance a television receiver, comprises a cathode ray tube, a first circuit for providing a high voltage to the cathode and a second circuit receiving a gross signal and providing on at least an output at least a luminance signal controlli... | 05/24/2005 |
| 6822699 | Cathode ray tube and method of displaying picture A main picture is displayed in monochrome in a main picture display area by emission of a first phosphor layer formed of a white emission phosphor. A second phosphor layer formed of a phosphor different from the first phosphor layer is provided in a region different... | 11/23/2004 |
| 6690339 | Method and circuit arrangement for controlling the operating point of a cathode ray tube A method and a circuit arrangement for controlling the operating point of a cathode ray tube (3) for use in image technology applications. A video signal (1) is supplied to both the tube (3) and to a cathode ray tube model (2), which the model (2) uses to... | 02/10/2004 |
| 6674231 | Panel for color cathode ray tube with seal and surface having rough surface A panel for a color cathode ray tube includes an opening portion provided with a seal end surface to which a funnel is sealed through a frit glass. The seal end surface of the opening portion is a rough surface comprising a large number of streak-shape ri... | 01/06/2004 |
| 6664747 | Dynamic focus regulation circuit of display apparatus A horizontal dynamic focus regulation circuit, which induces a horizontal dynamic focus waveform voltage by a horizontal deflection circuit generating a different frequency according to a display mode of a display apparatus, comprising a microcomputer out... | 12/16/2003 |
| 6590620 | CRT display image horizontal distortion correction device In a CRT display apparatus, a horizontal distortion correction apparatus is provided for correcting horizontal distortion of an image by applying a residual phase to control the phase of a horizontal deflection current. The horizontal distortion correctio... | 07/08/2003 |
| 6570625 | Display apparatus and display method Anode voltages A' and B' corresponding to video signals A and B are switched by a first switch and supplied to an anode. Cut-off voltages A and B corresponding to the video signals A and B are switched by a second switch and added to a video signal by an ... | 05/27/2003 |
| 6563552 | Image correcting method and device and cathode ray tube display unit Provided are an image correcting method and device capable of reducing power consumption necessary for correcting an image for a long-time use and a cathode ray tube display unit. A microcomputer 2 calculates a value of a correction current in such a mann... | 05/13/2003 |
| 6552752 | Clock generating based on a reference signal included in the digital input data of a digital broadcasting receiver When an STB is powered off when it is not used (when it is changed to the sleep mode) for the purpose of power-saving, a difference in a subtracter immediately therebefore is held by a control circuit and an oscillation circuit is controlled on the basis ... | 04/22/2003 |
| 6509936 | Cathode ray tube with magnetic coil for display enhancement A method and projection television system for projecting images having a plurality of color components, includes a device for filtering a first color component signal from a composite signal to provide a filtered first color component signal. A defocusing... | 01/21/2003 |
| 6506317 | Cooling medium for optical equipment and cooling device using the same A cooling medium and a cooling device for optical equipment using the same, which cooling medium has a refractive index in a specific range, hardly causes the problem to dissolve or swell plastic lens and other component parts, and is flame retardant. The... | 01/14/2003 |
| 6493040 | Scan velocity modulation circuit with multi-mode operation A video display deflection circuit includes a source of a video signal for displaying picture information contained in the video signal in a screen of a cathode ray tube. The video signal provides selectively on-screen-display information and non-on-scree... | 12/10/2002 |
| 6489994 | Method and device for protecting a cathode ray tube in an image displaying device by using a brightness control circuit A method and device utilizes a brightness control circuit for protecting a cathode ray tube in an image displaying device. The displaying device has an image signal amplifier, a cathode ray tube, and a brightness control circuit. The cathode ray tube has ... | 12/03/2002 |
| 6483557 | Emission control in a video display Unintentional emissions are controlled responsive to the spectral content of the display signal. A video display apparatus comprises a cathode ray tube responsive to a video signal. A processor controls a bandwidth of the video signal coupled to the catho... | 11/19/2002 |
| 6384876 | Vertically configured video projection system A video projector is arranged with three color CRTs vertically aligned with respect to a forwardly located projection surface. The projection surface is in a room having opposite side walls on either side of said projection surface. The video projector is... | 05/07/2002 |
| 6377319 | CRT mounting bracket for projection television sets A projection television set having a screen and three projection units each capable of projecting a monochromatic image onto the screen. The projection units each having a cathode ray tube (CRT) optically coupled to a projection lens, which includes both ... | 04/23/2002 |
| 6369851 | Method and apparatus to minimize burn lines on a display A method and apparatus for displaying a video signal is described. A video signal is received representing an image having a first aspect ratio, with the image having a top and bottom edge. An edge modification signal is generated. The image is displayed ... | 04/09/2002 |
| 6262524 | Electron gun with electron beam converging member disposed between quadrupole and main lens and a cathode ray tube employing the same A color cathode ray tube, and an electron gun of the same, having a superior focus characteristic. An electron gun is provided, emitting electron beams through a Gla electrode, G2a electrode, GMAa electrode, GMBa electrode, and G3 electrode. The electrons... | 07/17/2001 |
| 6256074 | Control signal generator for dynamic focus disabling A video imaging apparatus includes a source of a blanking signal that is indicative when a blanking interval occurs in a video signal. A delay circuit including a horizontal line counter is responsive to the blanking signal and to a signal at the horizont... | 07/03/2001 |
| 6211908 | Television apparatus with supplementary kinescope blanking and spot burn protection circuitry Supplementary grid blanking and spot burn protection are provided in a receiver/monitor (10) by a grid bias control circuit (50) including a blanking signal generator (60) that produces a blanking output signal (S1) devoid of any picture representative co... | 04/03/2001 |
| 6169587 | Raster V-size adjustment circuit A circuitry for attaining a fixed raster vertical scan size of a video display apparatus is proposed. The video display apparatus comprises a flyback transformer (FBT) which includes a primary winding and a secondary winding. The secondary winding has a t... | 01/02/2001 |
| 6072547 | Color display device A color display device having a color display tube with a display screen, comprising an electron gun for generating three co-planar electron beams, and a deflection system which, in operation, generates deflection fields for scanning the display screen, a... | 06/06/2000 |
| 6064434 | Beam current measurement In a beam current measurement device, including an output transistor (T1) for supplying a cathode current (Ic), a measurement output (OUTM) for supplying a measured current (Im) representing the cathode current (Ic), a first current source (Ibias1) couple... | 05/16/2000 |
| 6020939 | Method and apparatus for reducing electromagnetic interference radiated by cathode ray tube displays Electromagnetic interference ("EMI") is reduced in a CRT video display system by spreading-out the EMI-producing spectra present in the video pixel data and/or clock signals. A clock dropping circuit coupled between the display generator main oscillator a... | 02/01/2000 |
| 6002453 | Deflection with low offset A series arrangement of a deflection coil (Lf) and a series resistor (Rs) is connected between an output of a first output amplifier (1) and an output of a second output amplifier (2) to be driven in a bridge configuration for generating a deflection curr... | 12/14/1999 |
| 5977727 | Electron beam profile and energy shaping lens An apparatus and method to dynamically shape the projected energy profile of an electron beam and the energy distribution of an electron beam of a cathode ray tube to provide a single cathode ray tube the ability to display multiple image formats of varyi... | 11/02/1999 |
| 5956099 | Dynamic focus circuit and display using the same A circuit for clipping a dynamic focus voltage waveform during a horizontal retrace time is provided so as to prevent an unnecessary voltage from occurring during the retrace time. A high gain amplifier for amplifying horizontal and vertical parabolic wav... | 09/21/1999 |
| 5926211 | Method of measuring focus of cathode ray tube In a method of measuring a focus of a cathode ray tube, a predetermined image is displayed at a predetermined position on the screen of the cathode-ray tube. A focussing voltage of the cathode ray tube is changed under a condition that a distance from a r... | 07/20/1999 |
| 5923387 | Picture display apparatus and method of generating a focusing voltage A focusing waveform (Vf) is obtained by first generating (2) two intersecting triangular waveforms of opposite phase and half the deflection frequency. Subsequently, the difference between these two triangular waveforms is multiplied by itself for generat... | 07/13/1999 |
| 5841487 | Circuit arrangement for controlling a picture display tube In a circuit arrangement for direct current control of a picture display tube having a non-linear voltage/current characteristic by a precorrected picture signal, the picture signal is applied to a non-linear compensation circuit (3) which cancels the pre... | 11/24/1998 |
| 5805211 | Electrostatic probe device for signal detection of cathode ray tube displays An electrostatic probe device detects signals displayed on a cathode ray tube in a non-invasive manner. Specifically, the probe device includes a probe that is spaced from a fluorescent screen of a cathode ray tube by a dielectric material and a detection... | 09/08/1998 |
| 5793448 | Cathode ray tube packages A cathode ray tube package includes a cathode ray tube assembly and a housing assembly including a deflection coil and/or at least one focus coil. The cathode ray tube assembly includes a collar (31) aligned with the electron beam, being arranged to mate ... | 08/11/1998 |
