公开(公告)号：US5278476A

公开(公告)日：1994-01-11

申请号：US958607

申请日：1992-10-29

Applicant: Hendrik Ten Pierick ,  Willem J. De Haan ,  Frederik J. De Bruijn ,  Dirk J. A. Teuling

Inventor： Hendrik Ten Pierick ,  Willem J. De Haan ,  Frederik J. De Bruijn ,  Dirk J. A. Teuling

IPC: H04N9/64 ,  G09G1/00 ,  H04N9/72 ,  H04N9/73 ,  G09G1/04 ,  H01J29/70

CPC classification number: G09G1/002 ,  H04N9/72 ,  G09G2320/043

Abstract: 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 now includes a black level setting circuit with a control circuit adapted to successively apply at least two control voltages in a predetermined ratio to the cathode. Moreover, the black level setting circuit includes a correction circuit for supplying a correction value dependent on the ratio between the currents generated in the relevant cathode in response to the at least two control voltages.

Abstract translation: 显示设备中的一个问题是，对于每种类型的显示管，黑色电平不同，并且还取决于温度和老化。 迄今为止已知有黑电平设置电路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，调整黑电平，直到所测量的电流大致对应于参考电流。 显示装置现在包括具有控制电路的黑电平设置电路，该控制电路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，黑电平设定电路包括用于响应于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。

公开(公告)号：US4871951A

公开(公告)日：1989-10-03

申请号：US253795

申请日：1988-10-05

Applicant: Dirk J. A. Teuling

Inventor： Dirk J. A. Teuling

IPC: H04N3/233 ,  H04N3/27

CPC classification number: H04N3/233 ,  H04N3/27

Abstract: A picture display device, having a line synchronizing circuit and a line deflection circuit, suitable for several line frequencies. Use is made of a modulator for modulating the line deflection current, a control stage being coupled to this modulator for applying a correction signal for correcting, in dependence on the frequency of a line oscillator in the line synchronizing circuit, the S-distortion or the linearity error, respectively, or to keep the amplitude of the line deflection current constant upon a change in the line frequency.

Abstract translation: 一种图像显示装置，具有线路同步电路和线路偏转电路，适用于多个线路频率。 使用调制器来调制线路偏转电流，控制级耦合到该调制器，用于根据线路同步电路中的线路振荡器的频率，施加校正信号来校正S失真或 线性误差，或者在线路频率变化时保持线偏转电流的幅度恒定。

公开(公告)号：US4746842A

公开(公告)日：1988-05-24

申请号：US918416

申请日：1986-10-14

Applicant: Edward M. Ponte ,  Steven J. van Raalte ,  Dirk J. A. Teuling

Inventor： Edward M. Ponte ,  Steven J. van Raalte ,  Dirk J. A. Teuling

IPC: H03K4/501 ,  H03K4/50 ,  H03K4/502 ,  H04N3/223 ,  H04N3/27 ,  H04N5/12 ,  H01J29/70 ,  H01J29/76

CPC classification number: H03K4/502

Abstract: A circuit arrangement for generating a sawtooth-shaped signal for the field deflection in a picture display device with an amplitude which is substantially independent of the field frequency is disclosed. The value of the sawtooth-shaped signal during the occurrence of a sampling pulse is compared with a reference value for generating a control signal controlling the slope of the sawtooth-shaped signal. To eliminate instability in amplitude, which might result from phase jitter of the incoming field synchronizing signal and might cause an interlace error, sampling pulses are applied whose repetition frequency is substantially equal to the nth part of the field frequency, where n is an integer which is larger than 1, preferably a small multiple of 2.

Abstract translation: 公开了一种电路装置，用于产生具有基本上与场频无关的幅度的图像显示装置中的场偏转的锯齿形信号。 将采样脉冲发生期间的锯齿形信号的值与用于产生控制锯齿形信号的斜率的控制信号的参考值进行比较。 为了消除振幅的不稳定性，这可能是由于入射场同步信号的相位抖动引起的，并且可能引起隔行扫描错误，施加采样脉冲，其重复频率基本上等于场频的第n部分，其中n是整数， 大于1，优选2的小倍数。

公开(公告)号：US4540933A

公开(公告)日：1985-09-10

申请号：US546264

申请日：1983-10-28

Applicant: Dirk J. A. Teuling

Inventor： Dirk J. A. Teuling

IPC: H03K4/64 ,  H03K17/10 ,  H03K17/28

CPC classification number: H03K17/10 ,  H03K4/64

Abstract: A circuit arrangement comprising at least two high-voltage power switches (e.g. transistors) connected in series to a high voltage source. In order to ensure that the switches are automatically cut off substantially simultaneously, the control means of each switch comprise a delay element for delaying the cut-off signal. A comparison stage controls the delay caused by at least one delay element as a function of the difference between the voltage present at the junction point of the switches and a reference voltage.

Abstract translation: 一种电路装置，包括与高电压源串联连接的至少两个高压功率开关（例如晶体管）。 为了确保开关基本上同时自动切断，每个开关的控制装置包括用于延迟截止信号的延迟元件。 比较级控制由至少一个延迟元件引起的延迟作为存在于开关的接合点处的电压与参考电压之间的差的函数。