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1.发明公开Display device including a black level setting circuit 失效Wiedergabeanordnung mit einer Schwarzpegeleinstellschaltung。
公开(公告)号：EP0542347A2
公开(公告)日：1993-05-19
申请号：EP92203393.1
申请日：1992-11-05
发明人： Ten Pierick, Hendrik , De Haan, Willem Johan , De Bruijn, Frederik Jan , Teuling, Dirk Johan Adriaan
CPC分类号： G09G1/002 , G09G2320/043 , H04N9/72
摘要： One of the problems in display devices is that the black level is different for each type of display tube and is also dependent on temperature and ageing. The display devices hitherto known with black level setting circuits apply one control voltage to the relevant cathode during the field blanking interval, whereafter the cathode current is measured and subsequently compared with a reference current. Subsequently, the black level is adapted until the measured current approximately corresponds to the reference current.
The display device according to the invention includes a black level setting circuit with control means which are adapted to successively apply at least two control voltages in a predetermined ratio to the cathode. Moreover, the black level setting circuit comprises a correction circuit for supplying a correction value dependent on the ratio between the currents generated in the relevant cathode in response to said at least two control voltages.摘要翻译： 显示设备的一个问题是黑色电平对于每种类型的显示管是不同的，并且还取决于温度和老化。 迄今为止，黑电平设定电路已知的显示装置在场消隐间隔期间向相关阴极施加一个控制电压，之后测量阴极电流并随后与参考电流进行比较。 随后，黑电平被调整，直到所测量的电流大致对应于参考电流。 根据本发明的显示装置包括具有控制装置的黑电平设置电路，其适于以预定比率连续施加至阴极的至少两个控制电压。 此外，黑电平设置电路包括用于响应于所述至少两个控制电压而提供取决于在相关阴极中产生的电流之间的比率的校正值的校正电路。
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2.发明授权Circuit arrangement for supplying a periodic, substantially parabolic signal 失效用于供给的周期性，基本抛物线信号的电路装置。
公开(公告)号：EP0397239B1
公开(公告)日：1995-08-09
申请号：EP90201095.8
申请日：1990-05-02
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3.发明公开Picture display device including a staircase generator 失效Bildwiedergabeanordnung mit Stufengenerator。
公开(公告)号：EP0322012A1
公开(公告)日：1989-06-28
申请号：EP88202764.2
申请日：1988-12-02
摘要： A picture display device includes a generator (3, 4, 5) for generating a periodical staircase-shaped signal for addressing picture elements on display screen. The initial value of the staircase shape is settable and a stepwise change takes place each time upon the occurrence of clock pulses. The height of the steps is determined by the following measures:
- measuring the value of the staircase shape at a predetermined measuring instant or measuring the instant when the staircase shape is at a predetermined level,
- comparing the measured quantity with a predetermined target value,
- deriving a new value from this comparison and from the set initial value for the height of the steps of the staircase shape, for which new value the difference between the measured quantity and the target value has a predetermined value, and
- setting the height of the steps of the staircase shape at this new value.摘要翻译： 图像显示装置包括用于产生用于寻址显示屏上的图像元素的周期性阶梯状信号的发生器（3,4,5）。 阶梯形状的初始值是可设置的，并且每次发生时钟脉冲时都会发生逐步变化。 步骤的高度通过以下措施来确定： - 在预定测量时刻测量阶梯形状的值，或者测量阶梯形状处于预定水平的时刻， - 将测量量与预定目标值进行比较， - 从该比较中导出新值，以及从阶梯形状的高度的设定初始值得出新值，测量值与目标值之间的差值为预定值，并且 - 设定高度 在这个新价值的楼梯形状的步骤。
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公开(公告)号：EP0542347A3
公开(公告)日：1995-04-12
申请号：EP92203393.1
申请日：1992-11-05
发明人： Ten Pierick, Hendrik , De Haan, Willem Johan , De Bruijn, Frederik Jan , Teuling, Dirk Johan Adriaan
CPC分类号： G09G1/002 , G09G2320/043 , H04N9/72
摘要： One of the problems in display devices is that the black level is different for each type of display tube and is also dependent on temperature and ageing. The display devices hitherto known with black level setting circuits apply one control voltage to the relevant cathode during the field blanking interval, whereafter the cathode current is measured and subsequently compared with a reference current. Subsequently, the black level is adapted until the measured current approximately corresponds to the reference current.
The display device according to the invention includes a black level setting circuit with control means which are adapted to successively apply at least two control voltages in a predetermined ratio to the cathode. Moreover, the black level setting circuit comprises a correction circuit for supplying a correction value dependent on the ratio between the currents generated in the relevant cathode in response to said at least two control voltages.-
5.发明授权Circuit for generating a deflection current through the field deflection coil of a picture display device 失效用于通过图像显示装置的场偏转线圈产生偏转电流的电路
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公开(公告)号：EP0542347B1
公开(公告)日：1997-05-28
申请号：EP92203393.1
申请日：1992-11-05
发明人： Ten Pierick, Hendrik , De Haan, Willem Johan , De Bruijn, Frederik Jan , Teuling, Dirk Johan Adriaan
CPC分类号： G09G1/002 , G09G2320/043 , H04N9/72
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公开(公告)号：EP0301633B1
公开(公告)日：1993-03-31
申请号：EP88201482.2
申请日：1988-07-12
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8.发明公开Circuit arrangement for supplying a periodic, substantially parabolic signal 失效Schaltungsanordnung zum Liefern eines periodischen，im wesentlichenparabelförmigenSignals。
公开(公告)号：EP0397239A1
公开(公告)日：1990-11-14
申请号：EP90201095.8
申请日：1990-05-02
摘要： Circuit arrangement comprising a parabolic generator (2) for supplying a periodic, substantially parabolic signal to an output terminal during the trace time and an arcuate signal generator (3) for supplying an arcuate signal, which has the shape of, for example, half a sine wave, during the retrace time. At the start of the retrace time the arcuate signal and its derivative are given values which are substantially equal to the corresponding values of the parabolic signal at the end of the trace time. The arcuate signal generator is adapted to generate the arcuate signal in a time-discrete manner under the control of switching pulses supplied by a pulse circuit (4). The pulse circuit (4) is adapted to supply such a constant number of switching pulses for generating the arcuate signal at a variable retrace time that the arcuate signal and its derivative assume values which are substantially equal to the corresponding values of the parabolic signal at the start of the trace time.
摘要翻译： 电路装置包括抛物线发生器（2），用于在跟踪时间期间向输出端提供周期性的基本上抛物线的信号;以及弧形信号发生器（3），用于提供弓形信号，该弧形信号发生器具有例如半 正弦波，在回溯时间。 在回扫时间的开始，弓形信号及其导数被给出的值基本上等于跟踪时间结束时抛物线信号的相应值。 弧形信号发生器适于在由脉冲电路（4）提供的切换脉冲的控制下以时间离散的方式产生弓形信号。 脉冲电路（4）适于提供这样的常数数量的切换脉冲，用于在可变回扫时间产生弓形信号，弓形信号及其导数假定值基本上等于在 开始追踪时间。
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9.发明公开Field deflection circuit in a picture display device 失效在einer Bildwiedergabeanordnung的Vertikal-Ablenkschaltung。
公开(公告)号：EP0301633A1
公开(公告)日：1989-02-01
申请号：EP88201482.2
申请日：1988-07-12
摘要： A field deflection circuit including a sawtooth generator (1). For generating an essentially sawtooth-shaped voltage it is provided with a storage element in which information is stored under the influence of applied clock pulses (4). Per field period the number of times when the content of the storage element is changed is reduced (5) to a predetermined number, e.g. because a number of clock pulses is omitted. The clock pulses applied to the sawtooth generator (1) are then distributed as regularly as possible.
摘要翻译： 一种包括锯齿波发生器（1）的场偏转电路。 为了产生基本上为锯齿形的电压，它提供有存储元件，其中在施加的时钟脉冲（4）的影响下存储信息。 当存储元件的内容被改变时，每场周期减少（5）到预定数量的次数。 因为省略了多个时钟脉冲。 然后施加到锯齿波发生器（1）的时钟脉冲尽可能规则地分布。
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10.发明公开Circuit for generating a deflection current through the field deflection coil of a picture display device 失效电路用于通过显示设备的场偏转线圈中产生偏转电流。
公开(公告)号：EP0118142A1
公开(公告)日：1984-09-12
申请号：EP84200124.0
申请日：1984-01-31
发明人： Ten Pierick, Hendrik
摘要： To reduce both the number of capacitors and the number of connecting terminals, the circuit comprises a sawtooth generator (1), a combining stage (2, 5-8), a multiplying circuit (12) and an amplifier (18). Applied to the combining stage (2, 5-8) is a sawtooth signal generated by the sawtooth generator (1) and also a sawtooth signal originating from a feedback (26) and the combining stage (2, 5-8) generates three linear combinations of these input signals. Two linear combinations are applied to the multiplying circuit (12) for obtaining a parabolic signal which is applied to a signal input terminal (20) of the amplifier (18), whereas the third linear combination is applied to the feedback input terminal (19) of the amplifier (18). The series arrangement of the deflection coil (24) and a seperating capacitor (25) is coupled to the output terminal (22) of the amplifier (18), a feedback network (26) being included between the said series network and the combining stage.
摘要翻译： 为了降低电容器的数量和连接端子的数目，该电路包括一个锯齿波发生器（1），合并级（2，5-8），一个乘法电路（12），并在放大器（18）。 加到组合阶段（2，5-8）是由所述锯齿波发生器（1），因此一个锯齿信号从反馈（26）和所述组合级发起（2，5-8）基因率三个线性产生的锯齿波信号 合成输入信号的组合。 两个线性组合被施加到所述乘法电路（12），用于获得一个抛物线信号的所有被施加到放大器（18）的信号输入端（20），而所述第三线性组合被施加到反馈输入端（19） 的放大器（18）。 所述偏转线圈（24）和一个分隔条件电容器（25）的串联结构耦合到所述放大器（18）的输出端（22），反馈网络（26）被包括在所述串联网络和合并级之间 ，
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