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公开(公告)号：US4654711A
公开(公告)日：1987-03-31
申请号：US772866
申请日：1985-09-05
申请人： Tsuneo Mikado
发明人： Tsuneo Mikado
CPC分类号： H04N5/2622 , G06T3/40 , H04N5/2628 , H04N9/74
摘要： A contour map signal generator is provided for generating television signal. The contour map signal generator consists of n-series connected circuit, each generating signals for a first pattern and second pattern enlarged or reduced from the first and outputting by arithmetic addition contour map data representative of a step region consisting of two patterns. n-step contour map data generated through the n-series circuit is stored in an image memory and read out to be fed back to the input of said contour map signal generator. n x N-step contour map is generated through N times feedback operations. The contour map data is used for generating a television signal representative of a picture effect in which the original pattern area is enlarged or reduced as the time elapses for highlighting the original pattern.
摘要翻译： 提供了用于产生电视信号的轮廓图信号发生器。 轮廓图信号发生器由n个串联电路组成，每个产生第一图案的信号和从第一图形放大或缩小的第二图案，并通过表示由两个图案组成的步进区域的算术加法轮廓图数据输出。 通过n串联电路产生的n级轮廓图数据被存储在图像存储器中并被读出以反馈到所述轮廓图信号发生器的输入。 通过N次反馈操作生成n×N步轮廓图。 轮廓图数据用于产生代表图像效果的电视信号，其中原始图案区域随着时间的推移被放大或缩小以突出显示原始图案。
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公开(公告)号：US4572993A
公开(公告)日：1986-02-25
申请号：US651316
申请日：1984-09-17
申请人： Peter E. Haferl
发明人： Peter E. Haferl
CPC分类号： H04N3/223
摘要： An energizing voltage is series coupled with a diode, an inductor, a flyback transformer primary winding and an input terminal of a deflection circuit. During trace, the diode is forward biased causing a voltage to be developed across and an input current to flow in the inductor. During retrace, opposite polarity retrace voltage commutates off the diode and decouples the input terminal from the energizing voltage at a varied instant within retrace, in accordance with the amplitude of the input current. The amplitude of the input current is related to the ultor load current. A voltage that is indicative of the input current is developed across a capacitor. A DC voltage between one plate of the capacitor and a reference conductor controls the deflection current in the deflection winding such that variations in the ultor voltage produce the same sense variations in the DC voltage that is supplied by the capacitor for maintaining a substantially constant raster width.
摘要翻译： 激励电压与二极管，电感器，回扫变压器初级绕组和偏转电路的输入端串联耦合。 在跟踪期间，二极管被正向偏置，导致跨越电压并且输入电流在电感器中流动。 在回扫期间，相反的极性回扫电压根据输入电流的幅度将二极管整流并在回扫期间在变化的瞬间将输入端与激励电压分离。 输入电流的幅度与阳极负载电流有关。 在电容器上形成表示输入电流的电压。 电容器的一个板和参考导体之间的直流电压控制偏转绕组中的偏转电流，使得阳极电压的变化产生由电容器提供的用于维持基本上恒定的光栅宽度的直流电压相同的感测变化 。
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公开(公告)号：US4318036A
公开(公告)日：1982-03-02
申请号：US205819
申请日：1980-11-10
申请人： Stan Bart , Gopal K. Srivastava
发明人： Stan Bart , Gopal K. Srivastava
CPC分类号： H04N3/223
摘要： A pulse width modulator is described for width-modulating horizontal rate pulses developed in a television receiver and for applying the width-modulated pulses to the receiver's horizontal drive system. In the illustrated embodiment, the modulator includes a differential amplifier which senses the receiver's high voltage and beam current to develop a control signal which varies in accordance with variations in the beam current and the high voltage. A second differential amplifier receives the control signal and horizontal rate pulses for developing pulses whose width is varied in response to variations in the control signal. The width-modulated pulses cause the horizontal drive system to generate a substantially constant horizontal picture size despite variations in line voltage and brightness.
摘要翻译： 描述了用于在电视接收机中产生的宽度调制水平速率脉冲并且将宽度调制脉冲施加到接收机的水平驱动系统的脉冲宽度调制器。 在所示实施例中，调制器包括差分放大器，其感测接收机的高电压和波束电流，以产生根据波束电流和高电压的变化而变化的控制信号。 第二差分放大器接收用于显影脉冲的控制信号和水平速率脉冲，其宽度响应于控制信号的变化而变化。 尽管线路电压和亮度有变化，但宽度调制脉冲使得水平驱动系统产生基本上恒定的水平图像尺寸。
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公开(公告)号：US4277729A
公开(公告)日：1981-07-07
申请号：US94287
申请日：1979-11-19
摘要： A simplified bootstrap deflection circuit includes a sawtooth capacitor with one end grounded. First and second serially connected resistors provide charging current to form a ramp voltage across the capacitor. The noninverting input of an amplifier is coupled to receive the ramp. The amplifier output is coupled to a deflection winding and current sensing resistor. A feedback path couples the current sensing resistor to the inverting input terminal. A resistor is coupled to the inverting input terminal and to a reference potential. A bootstrap capacitor couples sawtooth feedback voltage at the inverting input terminal to the junction of the first and second capacitors for producing a constant voltage across the second resistor for linearizing the ramp. The feedback path includes a series variable resistor which acts as a centering control.
摘要翻译： 简化的自举偏转电路包括一端接地的锯齿电容器。 第一和第二串联电阻器提供充电电流以在电容器两端形成斜坡电压。 放大器的同相输入被耦合以接收斜坡。 放大器输出耦合到偏转绕组和电流检测电阻。 反馈路径将电流检测电阻耦合到反相输入端。 电阻器耦合到反相输入端子和参考电位。 自举电容器将反相输入端子处的锯齿波反馈电压耦合到第一和第二电容器的结，用于在第二电阻器两端产生恒定的电压，以使斜坡线性化。 反馈路径包括用作定心控制的串联可变电阻器。
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35.发明授权Arrangement for varying the excitation of a deflection circuit in response to load changes and the like 失效用于响应于负载变化等改变偏转电路的激励的布置
公开(公告)号：US4028588A
公开(公告)日：1977-06-07
申请号：US641644
申请日：1975-12-17
申请人： Heinz Kraus
发明人： Heinz Kraus
CPC分类号： H04N3/223
摘要： An arrangement for varying the triggering phase of a thyristor or other controllable switch employed to vary the excitation of a sweep deflection circuit during changes in the circuit load is described. The output of a winding of the deflection transformer is converted to a constant-amplitude sawtooth voltage which has a DC component proportional to the amplitude of the then-occurring forward sweep portion of the sweep voltage. A zener diode or other comparison element coupled to the output of a variable voltage divider whose input is fed by the resulting sawtooth voltage generates a trigger pulse for the controllable switch at the instant, during each cycle of the sweep waveform, that the constant-amplitude sawtooth voltage exceeds a predetermined value.
摘要翻译： 描述了用于改变用于在电路负载变化期间改变扫掠偏转电路的激励的晶闸管或其他可控开关的触发相位的装置。 偏转变换器的绕组的输出被转换成恒幅锯齿波电压，其具有与扫描电压的当时发生的正向扫描部分的幅度成比例的直流分量。 耦合到可变分压器的输出的齐纳二极管或其他比较元件，其输入由所产生的锯齿波电压馈送，在扫描波形的每个周期期间在瞬间产生用于可控开关的触发脉冲，即恒定幅度 锯齿波电压超过预定值。
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公开(公告)号：US3938002A
公开(公告)日：1976-02-10
申请号：US491612
申请日：1974-07-24
申请人： Alan John Terry
发明人： Alan John Terry
摘要： A deflection circuit has a sawtooth generator with a control input and an output stage, each having a different power supply. A control voltage derived from the output stage supply is applied to the control input to decrease the flyback period as the output stage supply voltage increases.
摘要翻译： 偏转电路具有具有控制输入和输出级的锯齿波发生器，每个具有不同的电源。 从输出级电源得到的控制电压被施加到控制输入端，以在输出级电源电压增加时减小回扫周期。
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公开(公告)号：US3444426A
公开(公告)日：1969-05-13
申请号：US3444426D
申请日：1967-12-29
申请人： MOTOROLA INC
发明人： BUECHEL MEL E
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公开(公告)号：US3441790A
公开(公告)日：1969-04-29
申请号：US3441790D
申请日：1965-11-15
申请人： RCA CORP
发明人： MCDONALD JAMES A , WILMARTH PAUL C
CPC分类号： H04N3/223
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