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7535001 |
Method and system for focusing a charged particle beam
A method for focusing a charged particle beam, the method includes: (a) altering a focal point of a charged particle beam according to a first focal pattern while scanning a first area of a sample...
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7462838 |
Electrostatic deflection control circuit and method of electronic beam measuring apparatus
An electrostatic deflection circuit and method of an electronic beam measuring apparatus which can achieve the high precision of the electronic beam measuring and contribute to the simplification...
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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”...
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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...
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7227318 |
Deflection device for projection tube and projection tube apparatus
A deflection device for a projection tube includes a main deflection device for generating a raster and an auxiliary deflection device for correcting a convergence. The auxiliary deflection device...
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7187345 |
Image forming method and charged particle beam apparatus
An image forming method and a charged particle beam apparatus suitable for suppressing the inclination of charging when scanning a two-dimensional area with a charged particle beam. A third...
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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...
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7079157 |
Matching the edges of multiple overlapping screen images
A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects positions in the two-dimensional field...
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7042174 |
Method of generating independent top and bottom corners correction using one 4th order function
A method and circuit for generating independent top and bottom corner correction using a single fourth order function is described. The top and bottom corner correction signal may be included in an...
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6998798 |
Digitally controlled vertical S linearity correction with constant amplitude without using an AGC
A digitally-controlled vertical S linearity correction with a constant amplitude without using an AGC. To preserve line spacing between horizontal lines toward a top and bottom of a screen a third...
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6982766 |
Digital raster correction
A projection display uses a matrix of digital correction factors defining deflection correction factors between which linear interpolation is used for intermediate points on the display. A circuit...
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6963181 |
Cathode-ray tube, cathode-ray tube apparatus, image display apparatus, and coil unit
A color cathode-ray tube apparatus having: a glass bulb including a face panel, a funnel, and a neck; a deflection yoke attached to the funnel to surround thereof; and a color-selection electrode...
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6940529 |
Graphics system configured to perform distortion correction
A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects positions in the two-dimensional field...
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6924590 |
Color picture tube device with distortion correction coils
A color picture tube device has a funnel glass, a pair of horizontal deflection coils, an insulating frame, and a pair of vertical deflection coils. The pair of horizontal deflection coils are...
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6894445 |
Cathode ray tube phosphor protection
A cathode ray tube video display comprises a cathode ray tube (CRT) for displaying a video signal (Vin) coupled thereto. A cathode ray tube electron beam blanker ( 201 ) is coupled to the cathode...
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6891340 |
Tracking picture tube
The present invention relates to a tracking picture tube of the type in which comb-shaped electrodes or optical detecting means ( 12, 13 ) are used for generating a signal related to the position...
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6888325 |
Method for self correcting inner pin distortion using horizontal deflection coil and deflection yoke thereof
Disclosed is a method for correcting inner pin distortion generated in the CRT product and deflection yoke thereof. According to the disclosed method and deflection yoke thereof, the additional...
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6885143 |
Cathode ray tube with offset deflection center
A cathode ray tube is provided, and more particularly, a cost-effective cathode ray tube effective for minimizing deterioration of color purity and obtaining a sufficient margin for a beam strike...
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6847176 |
Apparatus and method for removing horizontal moire in cathode-ray tube monitors
An apparatus and method for removing horizontal moire of a cathode-ray tube (CRT) monitor system, wherein horizontal moire can be completely removed even when the moire that occurs in an upper...
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6836084 |
Horizontal deflection coil for deflection yoke
Disclosed herein is a horizontal deflection coil for a deflection yoke. The horizontal deflection coil includes an inner pincushion improving section connected to a screen bent, and sub-sections...
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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...
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6833679 |
Method for forming an image on a screen of a cathode ray tube
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...
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6833662 |
Cathode ray tube with anti-ringing coil
The invention relates to a cathode ray tube comprising means ( 5 ) for generating an electron beam ( 6,7,8 ), means ( 51 ) for deflecting the electron beam, and a coil ( 14 ′) for influencing a...
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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...
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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...
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6804569 |
Distributed manufacturing with feedback
Methods and apparatus implementing a technique for assembling a device, such as a digital convergence monitor, at more than one site where data is supplied from a first site to a second site and...
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6791287 |
Deflection yoke device
A deflection yoke device includes a deflection yoke for deflecting electron beams in horizontal and vertical directions, the electron beams being emitted from an electron gun of a color cathode ray...
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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...
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6700337 |
Apparatus for generating dynamic focus signal
An apparatus for generating a dynamic focus signal appropriate for a flat-type CDT, or flat-screen CRT has a first multiplier for receiving a horizontal sawtooth wave and outputting the square...
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6686929 |
Broadband switching drive compensating circuit for a video display device
The present invention relates to a broadband switching drive compensating circuit for a video display device, which comprises a horizontal size detecting unit for detecting a horizontal size; a...
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6686709 |
Deflection yoke for a CRT
A deflection yoke is provided for a CRT, which includes horizontal and vertical deflection coils that deflect electron beams emitted from an electron gun in a horizontal or vertical direction, a...
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6686708 |
Display device comprising a deflection unit
A color display device comprising a cathode ray tube and a deflection unit is described. The display device includes compensation coils for correcting a raster distortion in the raster displayed on...
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6686695 |
Cathode ray tube having degaussing coil for minimizing variations in landing of electron beam
A cathode ray tube includes a tube having a panel, a funnel, and a neck, a color selection apparatus mounted to the panel within the tube, an inner shield connected to the color selection...
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6683586 |
Apparatus and method of adjusting horizontal position for a video display appliance
An apparatus for adjusting a horizontal position of a video display appliance in which a display image is put in the center of a monitor screen. The apparatus includes a comparative circuit, a...
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6680757 |
Environmental magnetism compensating device and cathode-ray tube display device
A geomagnetism sensor ( 2 ) outputs the vertical magnitude of geomagnetism as a detection signal (Vy). An A-D converter ( 5 ) converts the detection signal (Vy) into digital data which in turn is...
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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...
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6671006 |
Spot position indication signal generation
An spot position indication signal (A) is generated by an address generator ( 4 ). A deflection current (Ih,Iv) for deflecting an electron beam spot in one direction in a raster scanned cathode ray...
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6667588 |
Multi standard television display
An image display is operable with video signals having a plurality of scanning frequencies and comprises a cathode ray tube for the display of ones of the video signals. A deflection coil is...
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6642676 |
Electromagnetic quadrupole circuit which independently corrects ac and dc components of correction current
An electromagnetic quadrupole circuit capable of always performing the optimal correction of the spot form is provided with: a current detecting section 20 for detecting the peak value and bottom...
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6642675 |
Charged particle beam exposing apparatus
A charged particle beam exposing apparatus has an electromagnetic lens and a deflector, and performs pattern lithography by converging a charged particle beam on a sample by the electromagnetic...
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6630791 |
Cathode ray tube device that reduces magnetic field leakage
Two closed-loop coils are respectively set at the top or the bottom of a cathode ray tube. These two closed-loop coils serves in a pair as a cancel coil. Each closed-loop coil is positioned so as...
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6614193 |
Deflection current modulation circuit
A horizontal deflection circuit generates a horizontal deflection current in a deflection winding, during a trace interval and during a retrace interval of a deflection cycle. A transistor is...
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6614156 |
Cathode-ray tube apparatus
A main lens section of an electron gun assembly includes a focus electrode supplied with a focus voltage of a first level, a dynamic focus electrode supplied with a dynamic focus voltage obtained...
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6611103 |
Electron gun assembly for cathode ray tube
An electron gun assembly for a CRT includes three cathode electrodes, a control electrode, an electron-stream extractor electrode, a focusing electrode, and an anode electrode. The electron-stream...
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6605909 |
Dynamic horizontal linearity correction
A horizontal deflection circuit output stage includes a trace capacitor for developing a trace voltage. A retrace capacitance is coupled to a deflection winding to form a retrace resonant circuit...
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6590352 |
Electrical grounding of CRT antistatic/antireflective coating
The coating on the outer surface the display screen of a cathode ray tube (CRT) includes an inner conductive antistatic layer and an outer antireflective layer. When applied by a wet coating...
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6586895 |
Raster distortion correction circuit
A horizontal deflection circuit includes a horizontal deflection winding coupled to a retrace capacitor to form a retrace resonant circuit. An S-shaping capacitor is coupled to the deflection...
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6586894 |
Picture display device of the index type
Picture display device comprising a cathode ray tube whose display screen ( 10 ) is provided with index electrodes ( 20, 21 ) comprising elongated conducting elements disposed substantially...
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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...
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6577083 |
Method and apparatus for vertical S linearity correction with no external components
A method and apparatus for vertical S linearity correction with no external components. A periodic waveform may be cubed to produce a second waveform. This second waveform may be sampled to obtain...
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