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公开(公告)号：EP0408007A1
公开(公告)日：1991-01-16
申请号：EP90113268.8
申请日：1990-07-11
IPC分类号： H04N5/92
CPC分类号： H04N9/825 , H04N9/7936
摘要： A video signal processing device is arranged to supply a digital video signal to an IIR digital filter (1), to supply the digital video signal from the filter to a look-up table circuit which has a non-linear input-output characteristic (2), and to emphasize a high-frequency component of the digital video signal by adding (3) the output signal of the look-up table circuit to the digital video signal supplied to the filter, so that a non-linearly emphasizing process can be accomplished at a high speed. Further, a look-up table circuit which has a non-linear input-output characteristic, is supply by the output signal of a first subtracter which receives a high-frequency-component-emphasized digital video signal as one of its inputs; the output signal of the look-up table circuit is subtracted from the high-frequency-component-emphasized digital video signal to obtain a high-frequency-component-suppressed digital video signal; the video signal thus obtained is supplied to an IIR digital filter, whose output is supplied to the first subtracter as its other input, so that the digital video signal can be non-linearly deemphasized at a high speed. Moreover, to improve speed, a look-up table circuit with a feedback circuit is arranged to produce the deemphasized signal by using as a part of the address the emphasized digital signal, and as another part of the address the feedback digital signal.
摘要翻译： 视频信号处理装置被配置为将数字视频信号提供给IIR数字滤波器（1），以将来自滤波器的数字视频信号提供给具有非线性输入 - 输出特性（2）的查找表电路 ），并且通过将查找表电路的输出信号（3）加到提供给滤波器的数字视频信号上来强调数字视频信号的高频分量，使得非线性强调处理可以 以高速完成。 此外，具有非线性输入 - 输出特性的查找表电路由第一减法器的输出信号提供，该第一减法器接收高频分量强调的数字视频信号作为其输入之一; 从高频分量强调的数字视频信号中减去查找表电路的输出信号，以获得高频分量抑制的数字视频信号; 这样获得的视频信号被提供给IIR数字滤波器，其输出被提供给第一减法器作为其另一个输入，使得数字视频信号可以高速非线性去加重。 此外，为了提高速度，具有反馈电路的查找表电路被布置为通过使用强调数字信号的地址的一部分作为反馈数字信号的地址的另一部分来产生去加重的信号。
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公开(公告)号：EP0190738A3
公开(公告)日：1989-05-10
申请号：EP86101460.3
申请日：1986-02-05
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3688 , G09G2310/027 , G09G2310/0297 , G09G2320/0209
摘要： A liquid crystal display panel comprising: a liquid crystal display section; an array section of switching elements connected to first information signal lines of the liquid crystal display section, respectively; a driving circuit section which divides the switching element array section into a plurality of blocks and time-sharingly drives these blocks on a block unit basis; second information signal lines of wirings as many as the number of switching elements of one block among those blocks being connected to the driving circuit section; an information signal output circuit for applying an information signal to the second information signal lines; and an arithmetic operating circuit for correcting the information signal which is applied to the second information signal line in the previous block near the next block between the previous block which is previously driven and the next block which is driven next when the panel is time-sharingly driven for every block to an information signal to eliminate a high luminance which is produced in the first information signal line connected to this second information signal line.
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公开(公告)号：EP0190738A2
公开(公告)日：1986-08-13
申请号：EP86101460.3
申请日：1986-02-05
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3688 , G09G2310/027 , G09G2310/0297 , G09G2320/0209
摘要： A liquid crystal display panel comprising: a liquid crystal display section; an array section of switching elements connected to first information signal lines of the liquid crystal display section, respectively; a driving circuit section which divides the switching element array section into a plurality of blocks and time-sharingly drives these blocks on a block unit basis; second information signal lines of wirings as many as the number of switching elements of one block among those blocks being connected to the driving circuit section; an information signal output circuit for applying an information signal to the second information signal lines; and an arithmetic operating circuit for correcting the information signal which is applied to the second information signal line in the previous block near the next block between the previous block which is previously driven and the next block which is driven next when the panel is time-sharingly driven for every block to an information signal to eliminate a high luminance which is produced in the first information signal line connected to this second information signal line.
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公开(公告)号：EP1158808B1
公开(公告)日：2006-08-09
申请号：EP01202884.1
申请日：1995-10-26
CPC分类号： H04N19/436 , H04N19/42 , H04N19/423 , H04N19/61 , H04N21/426 , H04N21/42607 , H04N21/42692 , H04N21/4435
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公开(公告)号：EP0695089A2
公开(公告)日：1996-01-31
申请号：EP95304986.3
申请日：1995-07-18
IPC分类号： H04N5/93
CPC分类号： G11B20/1403 , H03L7/091 , H04N5/93
摘要： A specific pattern in an inputted digital signal is detected (13) and the input digital signal is sampled and held (14) in accordance with such a detection output. A clock (15-17) whose phase is synchronized with the input digital signal is generated on the basis of the sampling output. With such a construction as mentioned above, the phase of the clock can be optimally controlled by a simple construction. The clock can be precisely extracted from the input digital signal, so that the operation of a circuit is also stable.
摘要翻译： 检测输入数字信号中的特定模式（13），并根据这种检测输出对输入数字信号进行采样和保持（14）。 基于采样输出产生其相位与输入数字信号同步的时钟（15-17）。 通过上述这样的结构，可以通过简单的结构来最佳地控制时钟的相位。 时钟可以从输入的数字信号精确地提取出来，使电路的运行也稳定。
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公开(公告)号：EP0390471B1
公开(公告)日：1995-06-28
申请号：EP90303205.0
申请日：1990-03-27
发明人： Yamashita, Shinichi
CPC分类号： H03M7/3046 , H04N19/30 , H04N19/593
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公开(公告)号：EP0390471A2
公开(公告)日：1990-10-03
申请号：EP90303205.0
申请日：1990-03-27
发明人： Yamashita, Shinichi
CPC分类号： H03M7/3046 , H04N19/30 , H04N19/593
摘要： A predictive coding device comprises sampling means for sub-nyquist sampling a video signal and predictive coding means for receiving a sampling value from said sampling means and outputting an encoded code, in which the predictive coding means including an encoder for encoding a difference between the sampling value and a predicted value corresponding to the sampling value, and outputting the encoded code, and a predictor for generating the predicted value using only an array of pixels in a vertical direction of a screen with respect to a sampling value of a pixel to be encoded by the encoder.
摘要翻译： 一种预测编码装置，包括用于对视频信号进行亚奎质取样的采样装置和用于从所述采样装置接收采样值并输出编码的预测编码装置，其中所述预测编码装置包括用于编码采样之间的差的编码器 值和对应于采样值的预测值，并输出编码代码;以及预测器，用于仅使用相对于要编码的像素的采样值的屏幕的垂直方向上的像素阵列来生成预测值 由编码器。
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公开(公告)号：EP0216168A2
公开(公告)日：1987-04-01
申请号：EP86111751.3
申请日：1986-08-25
CPC分类号： H04N3/127 , G09G3/2011 , G09G3/3614 , G09G3/3648 , G09G3/3655 , G09G3/3666 , G09G3/3688 , G09G2310/0297 , Y10S359/90
摘要： The specification and drawings intend to disclose the technique in a method of driving a liquid crystal display panel which is suitable to display a multivalue image such as a television image or the like, whereby the image signal is inverted by integer times of the horizontal sync signal and applied to the source lines, the same inversion control signal is also synchronously applied to the common opposite electrode, thereby remarkably reducing the driving voltage of the source lines. In this manner, a high-speed CMOS device of a low withstanding voltage can be used as an integrated circuit to drive the source lines.
摘要翻译： 说明书和附图旨在公开一种驱动液晶显示面板的方法的技术，该液晶显示面板适合于显示诸如电视图像等的多值图像，由此图像信号被反转了水平同步信号的整数倍 并且施加到源极线，同样的反转控制信号也同步地施加到公共的相对电极，从而显着地降低了源极线的驱动电压。 以这种方式，可以使用低耐压电压的高速CMOS器件作为驱动源极线的集成电路。
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公开(公告)号：EP0213630A2
公开(公告)日：1987-03-11
申请号：EP86112116.8
申请日：1986-09-02
IPC分类号： G09G3/36
CPC分类号： G09G3/3666 , G09G2310/0297
摘要： In a method of driving a liquid crystal panel using one horizontal period (1H) as a reversal period, the liquid crystal panel using a TFT as a switching element for driving the panel in units of divided blocks and comprising the block division TFT's (B-TFT), a matrix circuit for driving each block in time division, and a TFT active matrix panel; each block of the B-TFT's is further divided into two half-blocks and a control signal shifted in phase between adjacent two half-blocks is applied to time-divisionally drive the liquid crystal panel at superposed timings. High intensity lines produced at the intersection of blocks due to the charge sharing effect is eliminated to thereby enable a high quality of image.
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公开(公告)号：EP0186086A2
公开(公告)日：1986-07-02
申请号：EP85116015.0
申请日：1985-12-16
CPC分类号： H04N3/127 , G02F1/133514 , G02F1/1368 , G02F2201/52
摘要： A color display panel comprising a plurality of picture elements arranged in a plurality of rows and a plurality of columns, and a plurality of driving lines disposed substantially along columns of picture elements, each picture element forming a color picture element selected from red picture elements, green picture elements and blue picture elements. Two or three types of color picture elements selected from the red, green and blue picture elements are arranged in a column, and each type of color picture elements among the two or three types of color picture elements arranged in a column are commonly connected to a driving line.
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