公开(公告)号：US08780145B2

公开(公告)日：2014-07-15

申请号：US12998769

申请日：2008-12-26

申请人： Shigenobu Jyou ,  Hiroaki Ikeda ,  Reiichi Kobayashi

发明人： Shigenobu Jyou ,  Hiroaki Ikeda ,  Reiichi Kobayashi

IPC分类号： G09G5/10

CPC分类号： G09G3/002 ,  G09G3/3611 ,  G09G2320/0238 ,  G09G2360/147

摘要： An image display apparatus includes: a panel (16a) that includes a plurality of picture elements that change transmittance of light according to picture levels; a detection unit (12) that detects, in one-image portions of the panel (16a), picture levels for each of the plurality of picture elements from picture signals that indicate the picture levels of each picture element; and a processor (18) that, based on the picture levels of one-image portions that were detected by the detection unit (12), adjusts the transmittance of light of the plurality of picture elements such that the image realized by the picture signal is brighter when a value that corresponds to brightness is greater than a predetermined threshold value.

摘要翻译： 图像显示装置包括：面板（16a），其包括根据图像水平改变光的透射率的多个图像元素; 检测单元（12），其从所述面板（16a）的单图像部分中检测用于指示每个图像元素的图像水平的图像信号中的每个所述多个图像元素的图像水平; 以及处理器（18），其基于由所述检测单元（12）检测到的一个图像部分的图像电平来调整所述多个图像元素的光的透射率，使得由所述图像信号实现的图像是 当对应于亮度的值大于预定阈值时更亮。

公开(公告)号：US20120019507A1

公开(公告)日：2012-01-26

申请号：US13260301

申请日：2009-03-27

申请人： Hiroaki Ikeda ,  Shigenobu Jyou ,  Reiichi Kobayashi

发明人： Hiroaki Ikeda ,  Shigenobu Jyou ,  Reiichi Kobayashi

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3611 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2360/16

摘要： The present invention is aimed at appropriately suppressing display failure such as a tailing phenomenon and the like in a normally white type liquid crystal panel. A driver (3) supplies a drive voltage in conformity with an image signal received by an image signal processing circuit (1), to a liquid crystal panel (4). A histogram detector (5) detects a histogram representing the relationship between the signal level of the image signal received by the image signal processing circuit (1) and the number of pixels. A CPU (6) calculates, based on the histogram detected by the histogram detector (5), a first proportion of the number of pixels (on the white side) whose signal level is equal to or greater than a first defined value, to the total number of pixels of the histogram and a second proportion of the number of pixels (on the black side) whose signal level is equal to or smaller than a second defined value that is smaller than the first defined value, to the total number of pixels of the histogram. An amplifier (2) corrects the lower limit of the drive voltage that the driver (3) supplies to the liquid crystal panel (4) in accordance with the first proportion of white side pixels and second proportion of black side pixels calculated by CPU (6).

摘要翻译： 本发明的目的在于适当地抑制普通白色液晶面板中的拖尾现象等的显示故障。 驱动器（3）将与图像信号处理电路（1）接收的图像信号一致的驱动电压提供给液晶面板（4）。 直方图检测器（5）检测表示由图像信号处理电路（1）接收的图像信号的信号电平与像素数之间的关系的直方图。 CPU（6）基于由直方图检测器（5）检测的直方图，计算信号电平等于或大于第一定义值的像素数量（在白色侧）的第一比例， 直方图的总数量和信号电平等于或小于小于第一定义值的第二定义值的像素数量（在黑色侧）与像素总数的第二比例 的直方图。 放大器（2）根据CPU（6）计算出的白色侧像素的第一比例和黑色侧像素的第二比例，校正驱动器（3）向液晶面板（4）供给的驱动电压的下限 ）。

公开(公告)号：US20110234645A1

公开(公告)日：2011-09-29

申请号：US12998769

申请日：2008-12-26

申请人： Shigenobu Jyou ,  Hiroaki Ikeda ,  Reiichi Kobayashi

发明人： Shigenobu Jyou ,  Hiroaki Ikeda ,  Reiichi Kobayashi

IPC分类号： G09G5/10

CPC分类号： G09G3/002 ,  G09G3/3611 ,  G09G2320/0238 ,  G09G2360/147

摘要： An image display apparatus includes: a panel (16a) that includes a plurality of picture elements that change transmittance of light according to picture levels; a detection unit (12) that detects, in one-image portions of the panel (16a), picture levels for each of the plurality of picture elements from picture signals that indicate the picture levels of each picture element; and a processor (18) that, based on the picture levels of one-image portions that were detected by the detection unit (12), adjusts the transmittance of light of the plurality of picture elements such that the image realized by the picture signal is brighter when a value that corresponds to brightness is greater than a predetermined threshold value.

摘要翻译： 图像显示装置包括：面板（16a），其包括根据图像水平改变光的透射率的多个图像元素; 检测单元（12），其从所述面板（16a）的单图像部分中检测用于指示每个图像元素的图像水平的图像信号中的每个所述多个图像元素的图像水平; 以及处理器（18），其基于由所述检测单元（12）检测到的一个图像部分的图像电平来调整所述多个图像元素的光的透射率，使得由所述图像信号实现的图像是 当对应于亮度的值大于预定阈值时更亮。

公开(公告)号：US09024935B2

公开(公告)日：2015-05-05

申请号：US13260301

申请日：2009-03-27

申请人： Hiroaki Ikeda ,  Shigenobu Jyou ,  Reiichi Kobayashi

发明人： Hiroaki Ikeda ,  Shigenobu Jyou ,  Reiichi Kobayashi

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2360/16

摘要： The present invention is aimed at appropriately suppressing display failure such as a tailing phenomenon and the like in a normally white type liquid crystal panel. A driver (3) supplies a drive voltage in conformity with an image signal received by an image signal processing circuit (1), to a liquid crystal panel (4). A histogram detector (5) detects a histogram representing the relationship between the signal level of the image signal received by the image signal processing circuit (1) and the number of pixels. A CPU (6) calculates, based on the histogram detected by the histogram detector (5), a first proportion of the number of pixels (on the white side) whose signal level is equal to or greater than a first defined value, to the total number of pixels of the histogram and a second proportion of the number of pixels (on the black side) whose signal level is equal to or smaller than a second defined value that is smaller than the first defined value, to the total number of pixels of the histogram. An amplifier (2) corrects the lower limit of the drive voltage that the driver (3) supplies to the liquid crystal panel (4) in accordance with the first proportion of white side pixels and second proportion of black side pixels calculated by CPU (6).

摘要翻译： 本发明的目的在于适当地抑制普通白色液晶面板中的拖尾现象等的显示故障。 驱动器（3）将与图像信号处理电路（1）接收的图像信号一致的驱动电压提供给液晶面板（4）。 直方图检测器（5）检测表示由图像信号处理电路（1）接收的图像信号的信号电平与像素数之间的关系的直方图。 CPU（6）基于由直方图检测器（5）检测的直方图，计算信号电平等于或大于第一定义值的像素数量（在白色侧）的第一比例， 直方图的总数量和信号电平等于或小于小于第一定义值的第二定义值的像素数量（在黑色侧）与像素总数的第二比例 的直方图。 放大器（2）根据CPU（6）计算出的白色侧像素的第一比例和黑色侧像素的第二比例，校正驱动器（3）向液晶面板（4）供给的驱动电压的下限 ）。

公开(公告)号：US20090315872A1

公开(公告)日：2009-12-24

申请号：US12312289

申请日：2007-11-29

申请人： Hiroaki Ikeda ,  Reiichi Kobayashi

发明人： Hiroaki Ikeda ,  Reiichi Kobayashi

IPC分类号： G09G3/36 ,  G09G5/00

CPC分类号： G09G3/3614 ,  G09G3/3655 ,  G09G2320/0285 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2360/16

摘要： A liquid crystal display apparatus includes common voltage generator circuit (5) for supplying a common voltage to a common electrode connected in common to a plurality of liquid crystal cells which form part of liquid crystal panel (9); liquid crystal driving circuit (2) for inversely driving liquid crystal panel (9); timer (8) for measuring a time for which liquid crystal panel 9 has been used; storage unit (10) for storing characteristic data which represents the relationship between used hours of liquid crystal panel (9) and an optimal value for the common voltage; and control unit (4) for determining a time for which liquid crystal panel (9) has been used up to the present time based on a measurement result by timer (8), retrieving an optimal value for the common voltage for the determined used time with reference to the characteristic data stored in storage unit (10), and controlling such that a magnitude of the common voltage output from the common voltage generator circuit is equal to the optimal value.

摘要翻译： 液晶显示装置包括用于向形成液晶面板（9）的一部分的多个液晶单元共同连接的公共电极提供公共电压的公共电压发生电路（5）。 用于反向驱动液晶面板（9）的液晶驱动电路（2） 定时器（8），用于测量已经使用液晶面板9的时间; 存储单元（10），用于存储表示液晶面板（9）的使用小时与公共电压的最佳值之间的关系的特性数据; 以及控制单元（4），用于基于计时器（8）的测量结果确定迄今为止已经使用了液晶面板（9）的时间，并且为所确定的使用时间检索公共电压的最佳值 参考存储在存储单元（10）中的特性数据，并且控制使得从公共电压发生器电路输出的公共电压的大小等于最佳值。

公开(公告)号：US20070085930A1

公开(公告)日：2007-04-19

申请号：US11522418

申请日：2006-09-18

申请人： Michio Kobayashi ,  Reiichi Kobayashi

发明人： Michio Kobayashi ,  Reiichi Kobayashi

IPC分类号： H04N5/21

CPC分类号： H04N5/208 ,  G06T5/004 ,  G09G3/36 ,  G09G2320/0261

摘要： A method (and apparatus) of improving an image quality of a video signal which is supplied on a frame-by-frame basis, includes extracting high frequency components associated with a video signal of an n-th frame (where n is a natural number), and adding the extracted high frequency components to a video signal of an (n+m)th frame (where m is a natural number).

摘要翻译： 提供逐帧提供的视频信号的图像质量的方法（和装置）包括提取与第n帧的视频信号相关联的高频分量（其中n是自然数 ），并且将所提取的高频分量与第（n + m）帧（其中m是自然数）的视频信号相加。

公开(公告)号：US07006704B2

公开(公告)日：2006-02-28

申请号：US10102000

申请日：2002-03-21

申请人： Michio Kobayashi ,  Reiichi Kobayashi

发明人： Michio Kobayashi ,  Reiichi Kobayashi

IPC分类号： G06K9/40

CPC分类号： H04N7/0122 ,  H04N5/208 ,  H04N9/646 ,  H04N9/77

摘要： A picture quality improving apparatus which is low in cost and small in circuit scale has a vertical low-pass filter (LPF) for extracting a vertical low-frequency component from an input luminance signal, a horizontal LPF for extracting a horizontal low-frequency component from the output signal from the vertical LPF, a subtractor for subtracting the output signal from the horizontal LPF from the luminance signal which has been compensated for the delay, a gain adjusting circuit for adjusting the gain of an edge signal produced by the subtractor, and an adder for adding the edge signal whose gain has been adjusted to the delay-compensated luminance signal. Each of the vertical LPF and the horizontal LPF comprises an FIR (finite impulse response) filter and an IIR (infinite impulse response) filter which are connected in cascade or parallel to each other.

公开(公告)号：US5032916A

公开(公告)日：1991-07-16

申请号：US440346

申请日：1989-11-22

申请人： Shigeo Matsuura ,  Susumu Takayama ,  Hiroshi Miyazawa ,  Masao Usui ,  Shigehiro Ito ,  Reiichi Kobayashi

发明人： Shigeo Matsuura ,  Susumu Takayama ,  Hiroshi Miyazawa ,  Masao Usui ,  Shigehiro Ito ,  Reiichi Kobayashi

IPC分类号： H04N17/00 ,  H04N5/21

CPC分类号： H04N5/211

摘要： For canceling ghost components disturbing a received picture signal waveform in the television transmission such as the television broadcast, ghost components of a reference pulse signal inserted at a central portion of a horizontal scanning period in a vertical blanking period of a picture signal is detected and then the received picture signal is processed such as those ghost components of the inserted reference signal are canceled by each other. In this signal processing, an auxiliary reference signal, the waveform and/or the level of which differ from those of the principal reference signal, the latter being occasionally almost zero, is inserted in a horizontal scanning period delayed from the principal reference signal by a repetition period after the lapse of which regular controlling signals such as synchronizing signals and color bursts having just the same waveform, level and phase reappear. In the differential signal waveform between received picture signals respectively neighboring both of reference signals, regular controlling signals are canceled by each other, while ghost components consisting of remaining waveforms except the difference between both of reference signals only are left, so as to facilitate the accurate detection of ghost components even exceedingly delayed over one half of a horizontal scanning period.

公开(公告)号：US4799102A

公开(公告)日：1989-01-17

申请号：US89392

申请日：1987-08-26

申请人： Reiichi Kobayashi

发明人： Reiichi Kobayashi

IPC分类号： H04N9/64

CPC分类号： H04N9/64

摘要： This invention provides a digital color demodulator having: a first phase locked loop circuit which generates an analog subcarrier signal phase locked to the color burst signal; a second phase locked loop circuit which generates an internal system clock signal phase locked to a horizontal period; a Y/C color separation circuit operating under the internal system clock signal; a pair of multiplying circuits, one of which multiplies a digital subcarrier signal, converted from the analog subcarrier signal, with the color signal, and the other of which multiplies the digital subcarrier signal, phase delayed by substantially 90.degree., with the color signal, thereby performing orthogonal demodulation of the signal.The digital processing circuits of this invention are all driven by the internal system clock signal generated by the second phase locked loop circuit.

摘要翻译： 本发明提供一种数字彩色解调器，具有：第一锁相环电路，产生锁相到色同步信号的模拟副载波信号; 第二锁相环电路，其产生锁定到水平周期的内部系统时钟信号相位; 在内部系统时钟信号下工作的Y / C分色电路; 一对乘法电路，其中一个乘法器将从模拟副载波信号转换的数字子载波信号与彩色信号相乘，另一个乘法器将相位延迟大致90度的数字子载波信号与颜色信号相乘， 从而执行信号的正交解调。 本发明的数字处理电路都由第二锁相环电路产生的内部系统时钟信号驱动。

公开(公告)号：US08174516B2

公开(公告)日：2012-05-08

申请号：US12448136

申请日：2008-02-26

申请人： Reiichi Kobayashi

发明人： Reiichi Kobayashi

IPC分类号： G09G5/00

CPC分类号： G09G5/006 ,  H04N5/205 ,  H04N5/21

摘要： An object of the present invention is to realize a transmission distortion correction system for allowing an image signal including a plurality of picture signals to be corrected, and to realize an image signal transmitter and an image display unit. The image display unit of the present invention includes: a second reference signal generation means for generating a second reference signal similar to a first reference signal regarding the image signal in which the first reference signal is inserted into each of the plurality of picture signals by the image signal transmitter; a plurality of waveform equalizers provided that correspond to the plurality of picture signals and that include a filter circuit capable of setting a characteristic thereto; and a control portion for inputting the plurality of picture signals, analyzing a characteristic of a transmission path between the image signal transmitter and the image display unit upon detecting the first reference signal in the input picture signals by comparing the first reference signal with the second reference signal, and setting a characteristic inverse to the analyzed transmission path characteristic to a filter circuit of the waveform equalizers that correspond to the input picture signals.

摘要翻译： 本发明的目的是实现一种用于允许对包括多个图像信号的图像信号进行校正的传输失真校正系统，并实现图像信号发送器和图像显示单元。 本发明的图像显示单元包括：第二参考信号产生装置，用于产生与第一参考信号类似的第二参考信号，该参考信号涉及第一参考信号被插入到多个图像信号中的每一个中的图像信号 图像信号发射机; 多个波形均衡器，其对应于多个图像信号，并且包括能够设置其特性的滤波器电路; 以及控制部分，用于输入多个图像信号，通过将第一参考信号与第二参考值进行比较来检测输入图像信号中的第一参考信号，分析图像信号发射器和图像显示单元之间的传输路径的特性 信号，并将与分析的传输路径特性相反的特性设置为对应于输入图像信号的波形均衡器的滤波器电路。