公开(公告)号：EP0969658B1

公开(公告)日：2006-09-06

申请号：EP99305196.0

申请日：1999-07-01

申请人： Hitachi, Ltd. ,  Hitachi Video & Information System, Inc.

发明人： Kimura, Katsunobu ,  Matono, Takaaki ,  Takata, Haruki ,  Nagata, Tatsuo ,  Sugiyama, Masato ,  Tsuru, Yasutaka ,  Sudo, Koichi

IPC分类号： H04N5/21

CPC分类号： H04N5/21

公开(公告)号：EP0969658A1

公开(公告)日：2000-01-05

申请号：EP99305196.0

申请日：1999-07-01

申请人： HITACHI, LTD. ,  Hitachi Video & Information System, Inc.

发明人： Kimura, Katsunobu ,  Matono, Takaaki ,  Takata, Haruki ,  Nagata, Tatsuo ,  Sugiyama, Masato ,  Tsuru, Yasutaka ,  Sudo, Koichi

IPC分类号： H04N5/21

CPC分类号： H04N5/21

摘要： The present invention provides a noise reduction signal processing apparatus for reducing noise accurately. The feature of a present invention is in the following structure. That is, a noise reduction signal processing circuit is used for a display apparatus for displaying a video signal, comprising: a median filter (40) to which is inputted the video signal, and which executes a filter processing to the inputted video signal and outputs a reference signal; a subtracter (50) which is connected with the median filter (40), and which outputs a difference signal that indicates the difference between the reference signal outputted from the median filter (40) and the video signal; a minimum value detection circuit (70) which outputs the difference signal from the subtracter (50) or a limitation value, whichever is smaller, as a minimum value signal; and an adder (35) which adds a noise reduction signal on the basis of the minimum value signal output from the minimum value, detection circuit (70) and the video signal.

摘要翻译： 本发明提供了一种用于精确降低噪声的降噪信号处理装置。 本发明的特征在于以下结构。 也就是说，降噪信号处理电路用于显示视频信号的显示装置，包括：输入视频信号的中值滤波器（40），并对输入的视频信号执行滤波处理，并输出 参考信号; 减法器（50），其与中值滤波器（40）连接，并输出指示从中值滤波器（40）输出的参考信号与视频信号之间的差的差分信号; 将来自减法器（50）的差分信号或限制值（较小者）作为最小值信号输出的最小值检测电路（70） 以及加法器（35），其根据从最小值输出的最小值信号，检测电路（70）和视频信号相加噪声降低信号。

公开(公告)号：EP0947975A1

公开(公告)日：1999-10-06

申请号：EP99302559.2

申请日：1999-03-31

申请人： HITACHI, LTD. ,  Hitachi Video & Information System, Inc.

发明人： Matono, Takaaki ,  Takata, Haruki ,  Kimura, Katsunobu ,  Nagata, Tatsuo ,  Sakai, Takeshi ,  Sudo, Koichi

IPC分类号： G09G3/20 ,  H04N5/202

CPC分类号： G09G3/2011 ,  G09G3/20 ,  G09G2320/0276 ,  H04N5/202

摘要： In a gamma correction circuit some bits of the digital data to be converted are used to select two gamma corrected "node" voltages. The other bits are used to make a linear interpolation between the two voltages using an addition circuit.
In order to adapt the gamma correction circuit to a specific display panel, the set of "node" voltages can be programmed.

摘要翻译： 在伽马校正电路中，要被转换的数字数据的一些比特被用于选择两个经伽玛校正的“节点”电压。 其他位用于使用加法电路在两个电压之间进行线性插值。 为了使伽玛校正电路适应特定的显示面板，可以对该组“节点”电压进行编程。

公开(公告)号：EP1892954A1

公开(公告)日：2008-02-27

申请号：EP07251972.1

申请日：2007-05-14

申请人： Hitachi, Ltd.

发明人： Sakai, Takeshi ,  Kimura, Katsunobu

IPC分类号： H04N5/44 ,  H04N5/63

CPC分类号： H04N5/63 ,  H04N5/4401 ,  H04N5/781 ,  H04N5/85 ,  H04N21/42222 ,  H04N21/44218 ,  H04N21/4436

摘要： For providing a broadcast receiving apparatus and a method for staring thereof, suppressing electric power consumption therein, under waiting condition, irrespective of mounting a constituent part requiring a long time for starting up, according to the present invention, within a broadcast receiving apparatus, detection is made, always, upon an approach of a human being, by means of a human sensor 40 and a sub-CPU 60, under the condition that a power plug 75 is inserted into a commercial electric power source, so as to control supply of electric power form a main electric power source unit to each of portions of that apparatus. Thus, prior to startup of that apparatus through a main switch 22 and a remote controller 30, a constituent portion (i.e., a video processing portion 200), being made up with a CPU and/or a digital LSI, installing OS therein and talking time for startup thereof, is started up, in advance, so as to bring it into a waiting condition; thereby shortening or reducing the waiting time after the startup of the apparatus with suppressing the electric power consumption under the waiting condition thereof.

摘要翻译： 为了提供广播接收装置及其凝视方法，在等待条件下抑制电力消耗，根据本发明，无论安装需要较长时间启动的组成部分，在广播接收装置内，检测 在电源插头75被插入商用电源的条件下，通过人体传感器40和副CPU60，总是在人的接近时进行，以便控制供应 电力向该设备的各部分形成主电源单元。 因此，在通过主开关22和遥控器30启动该装置之前，由CPU和/或数字LSI组成的组成部分（即，视频处理部分200）在其中安装操作系统和通话 启动的时间，提前启动，使其进入等待状态; 从而缩短或减少在其等待状态下抑制电力消耗的设备启动之后的等待时间。

公开(公告)号：EP2148516B1

公开(公告)日：2010-12-29

申请号：EP09013458.6

申请日：2002-03-08

申请人： Hitachi Ltd.

发明人： Kimura, Katsunobu ,  Matono, Takaaki ,  Takata, Haruki ,  Sakai, Takeshi ,  Kato, Wataru

IPC分类号： H04N9/73

CPC分类号： H04N9/73 ,  G09G5/02 ,  G09G2320/0666

公开(公告)号：EP2009930A2

公开(公告)日：2008-12-31

申请号：EP08250376.4

申请日：2008-01-31

申请人： Hitachi, Ltd.

发明人： Kimura, Yuichiro ,  Chiaki, Yutaka ,  Kimura, Katsunobu ,  Ohki, Hideaki ,  Tajima, Masaya ,  Takata, Kiyoshi

IPC分类号： H04N9/67

CPC分类号： H04N9/67

摘要： An image display apparatus, which converts a video signal in a first video signal format into a video signal in a second video signal format causing an increase in dynamic range, and displays the video signal in the second video format, includes a video signal conversion circuit configured to receive the video signal in the first video signal format and to produce the video signal in the second video signal format, a drive circuit configured to drive an image display panel according to the video signal in the second video signal format, and a signal processing module including signal processing circuits configured to perform signal processing necessary to drive the drive circuit, characterized in that the video signal conversion circuit is situated inside the signal processing module.

摘要翻译： 一种图像显示设备，其将第一视频信号格式的视频信号转换成动态范围增大的第二视频信号格式的视频信号，并且以第二视频格式显示视频信号，该图像显示设备包括视频信号转换电路 用于接收所述第一视频信号格式的视频信号并产生所述第二视频信号格式的视频信号;驱动电路，用于根据所述第二视频信号格式的视频信号驱动图像显示面板， 处理模块，包括信号处理电路，被配置为执行驱动所述驱动电路所需的信号处理，其特征在于，所述视频信号转换电路位于所述信号处理模块内部。

公开(公告)号：EP2299698A1

公开(公告)日：2011-03-23

申请号：EP10010304.3

申请日：2007-05-14

申请人： Hitachi, Ltd.

发明人： Sakai, Takeshi ,  Kimura, Katsunobu

IPC分类号： H04N5/44 ,  H04N5/63

CPC分类号： H04N5/63 ,  H04N5/4401 ,  H04N5/781 ,  H04N5/85 ,  H04N21/42222 ,  H04N21/44218 ,  H04N21/4436

摘要： For providing a broadcast receiving apparatus and a method for staring thereof, suppressing electric power consumption therein, under waiting condition, irrespective of mounting a constituent part requiring a long time for starting up, according to the present invention, within a broadcast receiving apparatus, detection is made, always, upon an approach of a human being, by means of a human sensor 40 and a sub-CPU 60, under the condition that a power plug 75 is inserted into a commercial electric power source, so as to control supply of electric power form amain electric power source unit to each of portions of that apparatus. Thus, prior to startup of that apparatus through a main switch 22 and a remote controller 30, a constituent portion (i.e., a video processing portion 200), being made up with a CPU and/or a digital LSI, installing OS therein and talking time for startup thereof, is started up, in advance, so as to bring it into a waiting condition; thereby shortening or reducing the waiting time after the startup of the apparatus with suppressing the electric power consumption under the waiting condition thereof.

摘要翻译： 为了提供广播接收装置及其凝视方法，在等待条件下抑制电力消耗，根据本发明，无论安装需要较长时间启动的组成部分，在广播接收装置内，检测 在电源插头75被插入商用电源的条件下，通过人体传感器40和副CPU60，总是在人的接近时进行，以便控制供应 电力将电力单元组装到该设备的每个部分。 因此，在通过主开关22和遥控器30启动该装置之前，由CPU和/或数字LSI组成的组成部分（即，视频处理部分200）在其中安装操作系统和通话 启动的时间，提前启动，使其进入等待状态; 从而缩短或减少在其等待状态下抑制电力消耗的设备启动之后的等待时间。

公开(公告)号：EP2148516A1

公开(公告)日：2010-01-27

申请号：EP09013458.6

申请日：2002-03-08

申请人： Hitachi Ltd.

发明人： Kimura, Katsunobu ,  Matono, Takaaki ,  Takata, Haruki ,  Sakai, Takeshi ,  Kato, Wataru

IPC分类号： H04N9/73

CPC分类号： H04N9/73 ,  G09G5/02 ,  G09G2320/0666

摘要： A video display device that allows the color temperature of the signals in white color attributes having high luminance and low chroma saturation to be corrected with high precision is provided together with the color temperature correction method for the same so as to visually obtain a desirable white color on display.
The signal processing circuit for the color temperature correction according to this invention comprises an A/D converter to convert the video signals as input into digitalized signals, a matrix circuit to convert the digitalized signals as output from said A/D converter into luminance signals and at least two color difference signals, a hue conversion circuit to obtain hue signals from the color difference signals as output from said matrix circuit, a hue correction circuit to correct said hue signals, a chroma saturation conversion circuit to obtain chroma saturation signals from said color difference signals, a chroma saturation correction circuit to correct said chroma saturation signals and a color temperature correction circuit to perform the color temperature correction on the respective hue and chroma saturation signals as corrected.

摘要翻译： 提供一种视频显示装置，该视频显示装置允许以高精度校正具有高亮度和低色度的白色属性中的信号的色温，并与色温校正方法一起为其提供视觉获得期望的白色 展示中。 根据本发明的用于色温校正的信号处理电路包括：A / D转换器，用于将作为输入的视频信号转换为数字化信号;矩阵电路，用于将从所述A / D转换器输出的数字化信号转换成亮度信号;以及 至少两个色差信号;色调转换电路，从所述矩阵电路输出的色差信号中获得色调信号;色调校正电路，校正所述色调信号;色度转换电路，从所述色彩获得色度饱和信号 差值信号;色度饱和度校正电路，用于校正所述色度饱和度信号;以及色温度校正电路，用于对校正后的各个色调和色度饱和度信号执行色温度校正。