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JP3636652B2 |
To provide a distortion correction circuit for correcting vertically asymmetrical distortion while reducing the circuit scale, and a display device. This distortion correcting circuit is provided with a comparator circuit 10 for inputtin...
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JP3636499B2 |
PURPOSE: To provide arrangement which can compensate for voltage change of sample hold capacitance, without using mass capacitance. CONSTITUTION: In the arrangement of this invention, an analog multiplier (110) generates an output signal...
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JP2005084569A |
To improve the technology for displaying a virtual image in a picture display device in which an observer recognizes a displayed object as a virtual image by projecting light upon the retina of the observer.In the picture display device,...
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JP2005085701A |
To provide a cathode ray tube device in which the display-plane size is safely and efficiently adjustable.The color cathode ray tube device is equipped with a color cathode ray tube internally equipped with electron guns, and a deflectio...
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JP2005086251A |
To provide a video image output apparatus capable of attaining a mute function in a steady state, and preventing a luminance noise generated when power source is turned on/off and when a plug is pulled from an outlet.A mute circuit (A) i...
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JP2005085629A |
To determine the state of a discharge lamp to inform a user of a failure, non-lighting and nearness to the end of life of the discharge lamp, in an image display projector for expanding and projecting an image on a screen or the like.Whe...
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JP3633935B2 |
A television display system employing edge brightness flicker reduction by modulation of the vertical deflection signal has digital control words for modulation polarity (D) and magnitude (S). These digital words are coupled to an amplif...
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JP3633115B2 |
To correct and adjust the strain in a pin shape and barrel shape in the horizontal direction of scanning beam generated in an upper and a lower part of a screen of cathode-ray tube. Sawtooth wave signals, for example, in vertical cycle a...
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JP3633427B2 |
To provide an adjusting method which can easily adjust a CRT image appearance position so that an image pattern is uniformly displayed on a CRT screen even if the image appearance gain to the CRT screen has variance. A pattern PV for wid...
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JP3634156B2 |
To reduce the generation of an artifact caused by scanning velocity modulation(SVM) while preventing disturbing operation during the operation of an on-screen display(OSD) generator by providing a buffer amplifier for separating the limi...
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JP3634157B2 |
To eliminate interference while an on-screen display generator operates and to reduce the occurrence of artifacts that are caused by scan velocity modulation, by responding to a pulse that is synchronized with scan that represents insert...
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JP3633189B2 |
To vary an image size so as to always keep the aspect ratio constant by providing a raster size varying means capable of expanding/compressing the raster size in the horizontal/vertical directions so as to keep the ratio of the horizonta...
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JP2005079862A |
To perform grouping correction of a color cathode-ray tube in accordance with respective parts of a display picture.A device is provided with a vertical grouping correction signal creation circuit 41 synchronized with a vertical deflecti...
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JP3632428B2 |
To suppress unnecessary power consumption and heat generation, to eliminate a radiating plate and to limit and eliminate the degree of freedom in design at the time of substrate pattern design and substrate configuration design by using ...
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JP3630698B2 |
PURPOSE: To prevent a fluorescent body on the screen of cathode-ray tube(CRT) at a television receiver from being hit and thermally damaged by an electronic beam when the deflection of this electronic beam in the CRT is stopped. CONSTITU...
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JP3630495B2 |
To improve the property of loading a cartridge and to efficiently display image information after being processed by executing communication with a film driving control means for a film carrier, through a communication means and applying...
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JP2005064884A |
To provide a TV receiver which prevents a remaining light spot and is provided with a circuit structure and the control procedure of a microcomputer which are not complicated.The TV receiver 20 includes a flyback transformer 15 for suppl...
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JP3628050B2 |
PURPOSE: To provide an image display device provided with a beam scanning speed modulator. CONSTITUTION: A circuit 12 for modulating the horizontal scanning speed of a television receiver as the function of contents of a video signal by ...
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JP2005057636A |
To prevent an electronic circuit from malfunctioning or destroying caused by the influence of surge due to in-pipe electric discharge at a display apparatus using a CRT as an display device.The CRT display apparatus comprises a CRT 101, ...
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JP2005051719A |
To provide a vertical sawtooth wave amplitude adjusting apparatus capable of generating a vertical sawtooth wave of which the inclination is fixed or in which the variance of the inclination is reduced, even when a vertical synchronizati...
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JP3622908B2 |
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JP3623046B2 |
The circuit is fed a network voltage (UN) and includes a network rectifier (G1), a bypass condenser (3) and a separating transformer (Tr) with a primary winding (W1) and a secondary winding (W2). A rectifier (G2) produces the working vol...
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JP3624027B2 |
To prevent a transistor for an amplifier from being broken when a dynamic converging circuit gets out of order. An active pull-up circuit 105 which is coupled with a high- voltage source generates an operating voltage. An amplifier 106 f...
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JP3624028B2 |
To suppress fluctuations in focusing voltage and to eliminate ringing due to operation with another circuit by removing a negative waveform generated during a vertical blanking period. A sawtooth wave containing negative waveform is inpu...
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JP3621470B2 |
The dynamic focus amplifier includes a current transformer having a primary side winding coupled to a source of horizontal rate sawtooth yoke current and a secondary side in which a horizontal rate AC signal is developed. A rectifier, ha...
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JP3620593B2 |
Disclosed is a power-supplying device for an electron gun in a CDT provided with an FBT comprising a focus voltage output terminal and an acceleration voltage output terminal, further comprising a power supplying part supplying a predete...
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JP3621558B2 |
The most popular method for reducing stray emission effects in a cathode ray tube is to install a bleeder resistor at the flyback transformer of the tube. Such a bleeder resistor is, however, quite expensive. Therefore, the stray emissio...
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JP2005038777A |
To provide a deflection yoke of vertical toroidal winding coil type which can make correction of color shift easily due to Yv misconvergence (R-B horizontal line break at the end in vertical direction of the viewing region) and in which ...
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JP3617669B2 |
An East-West switching transistor (Q1) is coupled between a flyback transformer primary winding (W1) and a horizontal deflection output transistor circuit (100,Q2) to control retrace energy to obtain an East-West modulation of the deflec...
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JP3618487B2 |
To provide a blanking signal generation control circuit for video equipment with which different broadcasting systems can be dealt with through external adjustment by generating a delayed vertical synchronizing signal by detecting the to...
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JP2005031369A |
To provide a video display device capable of effectively preventing image persistence without omission screen ends and without allowing a viewing audience to feel the sense of incongruity.In the video display device which displays videos...
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JP2005033971A |
To provide a switching power circuit capable of over-voltage protection with a stable operating point against a temperature change, using a built-in diode of a MOS transistor in detecting negative over-voltage.When large negative voltage...
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JP3615619B2 |
A deflection waveform correction signal generator comprises a parabolic shaped signal generator (U1, Q100) and first (Q2, C2) and second sawtooth (600) shaped waveform generators. The first horizontal frequency sawtooth shaped waveform i...
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JP2005020149A |
To provide a landing correction apparatus capable of eliminating color unevenness by a simple method even in the case of a television set used at a high land and to provide a display apparatus.The landing correction apparatus includes: a...
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JP2005020148A |
To provide an image distortion correction apparatus for correcting the local distortion caused at upper / lower ends of a screen or a corner part by providing a 2-pole electromagnetic coil to a cathode ray tube and to provide a display a...
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JP2005010241A |
To provide a sweep deflection circuit for sufficiently removing zigzagged vertical line faults even if a deflecting magnetic field is distorted due to the characteristics of a deflection coil and a video display device equipped therewith...
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JP2005501490A |
For some video processing applications, most notably watermark detection (40), it is necessary to add or average (parts of) the two interlaced fields which make up a frame. This operation is not trivial in the MPEG domain due to the exis...
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JP2005003934A |
To provide a display device having a function that can prevent circuit components from being damaged and that can also protect the human body against injury, by arranging so that no super high voltage is applied to an anode cap, even if ...
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JP2005005931A |
To provide a protective circuit for a horizontal output transistor which is capable of protecting the horizontal output transistor against damage caused by the single lack of a horizontal oscillation pulse of "H" level, and in addition b...
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JP2005006005A |
To reduce moire by adjusting a vertical focus voltage to be supplied to a focus electrode since a moire phenomenon may appear on a picture due to an interference of the vertical dot pitches of a phosphor and the pitches (scanning lines) ...
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JP3607505B2 |
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JP2004538528A |
A cathode current limiting circuit and method, for use with projection color television display systems to prevent overheating and possible cracking of the blue cathode ray tube (CRT) when a continuous blue background is presented, monit...
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JP2004364194A |
To provide a horizontal deflection circuit having a configuration capable of reducing cost and power loss.In the first half of a horizontal scan term, a transistor 33 and FETs 31, 36 are turned off and a serial circuit of a low power sou...
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JP2004364073A |
To prevent electric shock or electric discharge caused by the disconnection of a high voltage route.A TV receiver includes: a waveform shaping circuit 23 for outputting a shaping pulse signal 42 being the signal which is acquired by shap...
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JP2004363047A |
To provide a deflection yoke device which is capable of correcting the mistaken convergence YH in the Y axis lateral direction to a practically sufficient level with a simple structure, and a television receiving set improved in picture ...
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JP3604732B2 |
PURPOSE: To allow a system to be compatible with plural TV systems and to select any of them freely by converting an image pickup light into a video signal of a 1st frame frequency and reproducing the converted video signal with a 2nd fr...
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JP2004354493A |
To make light quantity larger than in the prior art wherein only one light source is arranged at the focal point of a reflector and consequently the obtained light quantity is small.In a light source device for a projection type display ...
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JP2004537748A |
Scanning apparatus operable for radiaton comprises a hollow polygonal primary drum rotatable about a central axis to present a plurality of internally presented sides or facets capable of reflecting the radiation concerned. A fixed Mangi...
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JP3600398B2 |
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JP3601336B2 |
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