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公开(公告)号：JPS60178777A
公开(公告)日：1985-09-12
申请号：JP3469984
申请日：1984-02-24
Applicant: SONY CORP
Inventor： TANAKA SAKAE , OOBOSHI TOSHIO , SAITOU SHIYUUICHI , FUJITA KOUICHI
Abstract: PURPOSE:To correct satisfactorily the misconvergence or the raster fluctuation caused by the fluctuation of high voltage by providing a detection circuit for difference signal produced from time constants of a resistance and a coupling capacitor at the erth side of a flyback transformer and correcting the reference voltage by said difference signal. CONSTITUTION:The time constants between a resistance 34 and a capacitor 35, a resistance 24 and a capacitor 26 and a resistance 25 and a capacitor 28 respectively are set equal to each other. The detection voltages Va and Vb extracted from terminals 30 and 31 have variations corresponding to high voltage HV and high voltage VH obtained through above-mentioned time constant circuits respectively. While a vertical cycle voltage generating circuit 36 adds a sawtooth wave of a vertical cycle to a parabolic wave of a horizontal cycle and delivers the vertically deflected voltage and the convergence correcting voltage through terminals 42 and 43 respectively. These voltages are supplied to a vertically deflected electrode 5 and an outer convergence electrode 10 via correction circuits 27 and 28 and coupling capacitors 26 and 28 respectively. the circuit 27 increases the tically deflected voltage through a multiplier 44 to correct the vertical zooming. While the difference voltage (Va-Vb) is added to the vertically deflected voltage by an adder circuit 46 to eliminate the effect of fluctuation of the voltage VH.
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公开(公告)号：JPS60190093A
公开(公告)日：1985-09-27
申请号：JP4688884
申请日：1984-03-12
Applicant: Sony Corp
Inventor： TANAKA SAKAE , OOBOSHI TOSHIO , SAITOU SHIYUUICHI , FUJITA KOUICHI
Abstract: PURPOSE: To eliminate the asymmetry of grooping on a fluorescent screen by applying a correction current having the amplitude change of nearly sawtooth waveform horizontal period and having a large peak-to-peak value at the lower part of the fluorescent screen to an electromagnetic correction means displacing horizontally only a side beam to a bottle neck of a color flat cathode ray tube.
CONSTITUTION: The correction current having nearly sawtooth waveform and smaller amplitude is applied to coils 26A and 26B. Yokes 25A, 25B are excited at the negative first half period of the correction current, the magnetic flux density B is larger toward both sides in the magnetic flux distribution in the neck part and electron beams 11B, 11R of both sides are moved horizontally to the right as shown in solid lines. The beams are driven horizontally to the left as shown in arrows of broken lines conversely with the direction of the first half period in the latter period where the correction current fed to the coils 26a, 26b is positive. The amount of the horizontal movement of the side beams 11B, 11R by the yokes 25A, 25B and the coils 26A, 26B is increased toward the lower part of the fluorescent screen.
COPYRIGHT: (C)1985,JPO&JapioAbstract translation: 目的：通过在荧光屏的下部应用具有接近锯齿波形水平周期的幅度变化并且具有大的峰 - 峰值的校正电流来消除荧光屏上梳理的不对称性， 仅将侧光束水平移位到彩色平板阴极射线管的瓶颈。 构成：具有近似锯齿波形和较小振幅的校正电流施加到线圈26A和26B。 磁轭25A，25B在校正电流的负前半个周期被激励，磁通密度B在颈部的磁通分布中朝向两侧较大，并且两侧的电子束11B，11R水平移动到 如实线所示。 光束如左图所示，在虚线的箭头所示的方向相反，在馈送给线圈26a，26b的校正电流为正的后一周期中与前半个周期的方向相反。 通过轭铁25A，25B和线圈26A，26B的侧梁11B，11R的水平移动量朝荧光屏的下部增加。
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Patent Agency Ranking
公开(公告)号：JPS5790854A
公开(公告)日：1982-06-05
申请号：JP16710980
申请日：1980-11-27
Applicant: SONY CORP
Inventor： SATOU KOUKI , NAKANO TAKAO , FUJITA KOUICHI , TATENO YASUO , KOJIMA TOSHIHISA
Abstract: PURPOSE:To obtain a conductive coated film with prescribed and even performances on heating process after spreading on the inside surface of the tube, by using amorphous glass frit as a frit in a coating composition which constitutes a conductive coated film. CONSTITUTION:A coating for constituting the conductive film is composed of a mixture of carbon powder, amorphous frit glass which will not crystallize and be maintained in glass state on heat-treatment after spreading, and binder. The glass frit in the composition is maintained in amorphous state to bind and hold carbon powder even if the coating composition spread on the inside surface of a cathode ray tube is heated repeatedly. Thus by using this conductive coating composition, a conductive coated film with stable performances and with a stable resistance after reclamation can be obtained.
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公开(公告)号：JPS6081742A
公开(公告)日：1985-05-09
申请号：JP18946583
申请日：1983-10-11
Applicant: SONY CORP
Inventor： TANAKA SAKAE , OOBOSHI TOSHIO , FUJITA KOUICHI
Abstract: PURPOSE:To make a CRT compact and lightweight and attain its low power consumption by dividing a horizontal deflection system into a main plate and a front-stage deflection plate and curving and forming a gap on the front-stage deflection plate. CONSTITUTION:Three electron beam are focused by a fourth grid 26 and is rotated by a rotational coil 27. The electron beams are bombarded in a gap 36 on a front-stage deflection plate 34 and are deflected by the horizontal deflection magnetic field within this gap 36 only for the specified amount. Since the cross-sectional shape of the gap 36 on the front-stage deflection plate 34 is curved and formed into a shape corresponding to almost a curve of secondary degree, the self-rotation corresponding to the passing position is applied to the beam flux. When the electron beams pass through a gap 35 on a main deflection plate 32, the electron beam are electromagnetically deflected further horizontally by a horizontal deflection magnetic field and are electrostatically deflected in the vertical scanning direction by the potential difference formed in the gap 35. The beam flux is electrostatically deflected in the vertical scanning direction by the potential formed between a rear electrodes 23 and a shadow mask 22 and is guided to land at the specified position of the shadow mask 22.
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公开(公告)号：JPS57106276A
公开(公告)日：1982-07-02
申请号：JP18250080
申请日：1980-12-22
Applicant: SONY CORP
Inventor： SATOU KOUKI , TAKAHASHI MASAE , HATANAKA MASATO , YAMAKOSHI AKIRA , FUJITA KOUICHI
Abstract: PURPOSE:To improve the horizontal linearity even if the power source voltage is low, by providing a tap in a prescribed position of a deflecting coil and connecting the collector of a transistor and a capacitor to this tap. CONSTITUTION:A current I1 is flowed to a coil 2A in the latter half of the horizontal scanning time, and a current I2 is flowed to the coil 2A through a diode 5 in the first half of this time. When the power source voltage, the saturation voltage between the collector and the emitter of a transistor TR3, and the forward drop voltage of the diode 5 are denoted as VCC, VCE, and VF respectively and a coil part 2B is substituted with a DC power source V6, a voltage V1 applied to the coil 2A for flowing of the current I1 is equal to VCC-VCE, and a voltage V2 applied to the coil 2A for flowing of the current I2 is equal to VCC+VF-V6. Consequently, if the position of a tap is so selected that V6=VF+VCE is true, V2=V1 is true, and thus, the horizontal linearility is improved even if the power source voltage VCC is low.
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公开(公告)号：JPS60112386A
公开(公告)日：1985-06-18
申请号：JP21973483
申请日：1983-11-22
Applicant: SONY CORP
Inventor： TANAKA SAKAE , SAITOU SHIYUUICHI , OOBOSHI TOSHIO , FUJITA KOUICHI
Abstract: PURPOSE:To obtain a video signal processor which is designed to drive under low power consumption by reducing the horizontal line numbers per screen into 1/n (n denotes an integral number more than 2), and by dropping drive voltage of a deflecting circuit by expanding horizontal scan period. CONSTITUTION:A color video signal V1 from a video amplifier circuit 5 is supplied to a sampling circuit 9 and a horizontal line is reduced into 1/3 in number. That is, in the circuit 9, the signal V1 is a three horizontal line period signal, thereby being taken out after being gated only during a high level period of a sampling signal SP which is to be a high level for a period of one horizontal line. Therefore, beyond this level, a signal VS in which signals H1, H4, H7... for one horizontal line appear for each three horizontal line period is obtained. Primary signals R, G and B thus obtained are intermittent signals for each such period and are expanded in time by three times in a time expansion circuit 19.
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公开(公告)号：JPS5394864A
公开(公告)日：1978-08-19
申请号：JP956377
申请日：1977-01-31
Applicant: SONY CORP
Inventor： OOGOSHI AKIO , UENO KIICHI , FUJITA KOUICHI , NAKANO TAKAO
Abstract: PURPOSE:To enhance the practical utility of the electronic gum, by avoiding the beam current cut-off cathode voltage caused by the thermal deformation of the grid at the operation time or the fluctuation of the cathode current and by increasing the grid durability.
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