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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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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...
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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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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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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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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6774585 |
Display correction waveform generator for multiple scanning frequencies
A method for generating display correction waveforms for a CRT display comprises the steps of selecting one of a plurality of trace portions for forming part of a correction waveform, the trace...
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6700336 |
Apparatus for supplying deflection power for use in a display and control method thereof
An apparatus for supplying a deflection power for use in a display and a control method thereof. The apparatus includes a high voltage outputting portion having a first coil connected to a...
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6690125 |
CRT scan circuit with a geometry correction independent from the scan frequency
A line scan circuit for a CRT, including, in series across a switch, two oscillating circuits having the same time constant, each including, in parallel, a capacitor, a diode connected in...
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6683424 |
Distortion correcting circuit and display device
A distortion correcting circuit for correcting vertically asymmetric distortion while achieving reduction in circuit scale and a display apparatus equipped with the circuit are provided. This...
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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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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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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...
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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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6580232 |
Dynamic focus voltage amplitude controller
A dynamic focus voltage generator includes a source of a flyback input signal at a horizontal deflection frequency. A double integrator is responsive to the input signal for generating a parabolic...
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6555976 |
East-west distortion correction
An apparatus for the correction of East-West distortion of images produced on the screen of a picture tube. More particularly, it concerns an electronic circuit for dynamically controlling the AC...
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6534920 |
Horizontal deflection circuit and bidirectional horizontal deflection apparatus
An amplitude control circuit controls the amplitude of a correction signal periodically changing in a parabolic form at vertical scanning intervals based on the level of an amplitude control signal...
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6522091 |
Circuit and method that allows the amplitudes of vertical correction signal components to be adjusted independently
The present disclosure describes a technique that allows the amplitudes of vertical correction signal components to be adjusted independently. When the amplitude of each of the vertical correction...
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6504326 |
Focusing circuit for a cathode ray tube
A focusing circuit ( 1 ) for generating a focus control signal for a cathode ray tube ( 3 ) has a modulation input ( 4 ) for influencing the focus control signal, which focus control signal...
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6495977 |
Vertical deflection circuit, processor for vertical deflection, and CRT display
There is disclosed a vertical deflection circuit for use in a display device employing a CRT. The vertical deflection circuit has a DSP (digital signal processor) for producing a digital current...
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6495975 |
CRT display apparatus
A CRT display apparatus including a CRT having an electron gun is disclosed. The electron gun includes a cathode, and a G 1 electrode, a G 2 electrode and a G 3 electrode disposed in that order...
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6489735 |
Generating a non-linear waveform
In a waveform generator, a repetitive non-linear waveform is generated by varying the number supplied to a pulse reduction circuit during the repetition period. Consequently, the pulse reduction...
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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....
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6483558 |
Color television receiver or color monitor having a flat screen
Color television apparatus and color monitors are provided with a device, in particular with an electron lens system, to vary the mutual spacing of the electron beams generated in an electron beam...
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6479953 |
Deflection circuit with a retrace capacitive transformation
A horizontal deflection circuit of a video display includes a first retrace capacitance and a second retrace capacitance. A deflection winding is coupled to the first and second retrace...
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6472833 |
Laser cathode ray tube
A laser CRT includes a cathode, a modulator having an orifice for forming an electron beam from the electrons emitted by the cathode, and a beam directing unit directing the electron beam formed by...
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6462488 |
Shadowmaskless tracking cathode ray tube control circuit having inverse beam current compensation
A shadowmaskless tracking cathode ray tube control circuit is described, comprising a control loop, which is coupled to a deflection unit of a shadowmaskless tracking cathode ray tube. The...
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6456020 |
Circuit for stabilizing a screen voltage of a video display apparatus
A circuit for stabilizing a screen voltage of the video display apparatus is capable of supplying a uniform screen voltage to the video display apparatus even though a voltage level of an output...
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6452347 |
Method and apparatus for deflection
A primary winding of a transformer is serially connected to a horizontal deflection coil. An amplitude regulating circuit outputs a first correction voltage in response to a voltage generated on a...
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6437523 |
Deflection circuits coupled via a filter
A secondary winding of a horizontal flyback transformer of a horizontal deflection circuit develops a horizontal retrace pulse voltage. A secondary winding of a second transformer is coupled in...
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6424103 |
Deflection-distortion correcting circuit
A deflection-distortion correcting circuit for correcting deflection-distortion of an image on a screen by modulating a source voltage for horizontal deflection is disclosed. The...
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6417633 |
Tracking cathode ray tube circuit having a modulator demodulator
A tracking index cathode ray tube circuit includes a tracking circuit connected to a shadowmaskless tracking cathode ray tube for deriving a tracking signal therefrom. The tracking circuit...
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6417632 |
Deflection apparatus and control method thereof
A deflection apparatus capable of generating a stable deflection pulse in a deflection output circuit even when turning on the power source or changing over the frequency of horizontal...
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6407519 |
Cathode-ray tube system capable of providing beam spots of a small diameter
A signal is sent to a deflection circuit and a video signal processing circuit. On receiving the signal, the deflection circuit outputs a vertical deflection signal and a horizontal deflection...
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6404148 |
Switching apparatus for horizontal driving pulse
In a horizontal deflection circuit, a waveform response of a horizontal output pulse must be adequately taken into account before and after a switching of the horizontal output pulse so that the...
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6384546 |
Deflection yoke and mis-convergence correction method for color cathode-ray tube
An inline type color cathode-ray tube deflection yoke applies a deflecting magnetic field to electron beams from a neck portion of a valve accommodating three electron guns toward the funnel...
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6366034 |
Electric current variable-type inductor having closed loop characteristics and a horizontal linearity compensation circuit
A current variable inductor having closed loop characteristics and a horizontal linearity compensation circuit. The current variable inductor having the closed loop characteristics is constructed...
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6351085 |
Color cathode ray tube display
As described above, according to the present invention, there is provided a color CRT display having a one-beam electron gun for reproducing colors by sequentially switching respective chrominance...
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6329768 |
Process for correcting picture deformation and device implementing this process
To facilitate the adjustment of the S correction in apparatus comprising cathode-ray tubes (televisions, monitors), the process consists in displaying visual marks on the screen, at the location of...
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6326745 |
Cathode-ray tube apparatus
In a cathode-ray tube including a modulator, the modulator has different settings in the intermediate portion and in the peripheral portions of the picture so that the change of inductance along...
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6307334 |
Television receiver with horizontal deflection circuit
In a television receiver comprising a horizontal deflection circuit (2) associated with a flyback transformer (9), the horizontal deflection circuit comprises a switch (6) which is controlled by a...
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