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公开(公告)号：US4240115A
公开(公告)日：1980-12-16
申请号：US968260
申请日：1978-12-11
申请人： Masanori Kamiya
发明人： Masanori Kamiya
CPC分类号： H03J7/20
摘要： A channel selection voltage generator comprises a tuning voltage generator circuit having a capacitor for supplying a tuning voltage to an electronic tuner, a first constant current source for constantly discharging the capacitor at a first constant current and a second constant current source adapted to be rendered selectively in an operative state and in an inoperative state for selectively charging the capacitor at a second constant current which is higher than the first constant current, a frequency discrimination circuit for producing a discrimination signal representative of the amount of frequency deviation when a tuning voltage deviates from a receiving frequency, a buffer circuit for producing a binary "1" level signal when the discrimination signal is higher than a predetermined value and producing a binary "0" level signal when the discrimination signal is lower than the predetermined value, and a control circuit for causing the second constant current source to assume the inoperative state when the binary signal is at "0" level and causing the second constant current source to assume the operative state when the binary signal is at "0" level, the control circuit serving to maintain the second constant current source in the operative state or the inoperative state irrespective of the level of the binary signal during the frequency sweep.
摘要翻译： 通道选择电压发生器包括具有用于向电子调谐器提供调谐电压的电容器的调谐电压发生器电路，用于以第一恒定电流恒定地放电电容器的第一恒流源和适于被选择性地选择性地产生的第二恒流源 处于工作状态并处于不工作状态，用于以高于第一恒定电流的第二恒定电流选择性地对电容器充电;频率鉴别电路，用于产生表示当调谐电压偏离时的频率偏差量的鉴别信号 接收频率，当鉴别信号高于预定值时产生二进制“1”电平信号的缓冲电路，并且当鉴别信号低于预定值时产生二进制“0”电平信号;以及控制电路 用于使第二恒定电流源承担i 当二进制信号处于“0”电平并且当二进制信号处于“0”电平时使第二恒定电流源处于工作状态，控制电路用于将第二恒定电流源维持在操作状态 或者在频率扫描期间与二进制信号的电平无关的不工作状态。
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公开(公告)号：US5319448A
公开(公告)日：1994-06-07
申请号：US988667
申请日：1992-12-10
申请人： Hideaki Ohki , Masanori Kamiya
发明人： Hideaki Ohki , Masanori Kamiya
摘要： A method and an apparatus for correcting a color reproduction distortion for each of all the hues are provided. A predetermined demodulating axis of three demodulating axes SR, SG and SB for the three primary colors R, G and B, herein, the R-Y demodulating axis SR is formed by combining the two demodulating axes SR2 and SR3. The demodulating axis SR2 provides a different demodulating gain from the standard demodulating axis. The demodulating axis SR3 provides a different demodulating angle from the standard demodulating axis in addition to the different demodulating gain. Then, a smaller one of the signals demodulated by the demodulating axes SR2 and SR3 is selected. It means that the signal changing along the vector orbit E1 indicated by oblique lines is made to be a color difference signal R-Y. By this function, from the signals demodulated about the demodulating axes SR2 and SR3, the portions with no color reproduction distortion are extracted and synthesized so that no color reproduction distortion takes place with respect to all the hues.
摘要翻译： 提供了用于校正所有色调中的每一个的色彩再现失真的方法和装置。 通过组合两个解调轴SR2和SR3，形成用于三原色R，G和B的三个解调轴SR，SG和SB的预定解调轴，这里是R-Y解调轴SR。 解调轴SR2提供与标准解调轴不同的解调增益。 除了不同的解调增益之外，解调轴SR3还提供与标准解调轴不同的解调角度。 然后，选择由解调轴SR2和SR3解调的较小的一个信号。 这意味着沿着由斜线表示的矢量轨道E1的信号变为色差信号R-Y。 通过该功能，从解调轴SR2和SR3解调的信号中，提取并合成没有颜色再现失真的部分，使得相对于所有色调不发生色彩再现失真。
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13.发明授权
公开(公告)号：US5181116A
公开(公告)日：1993-01-19
申请号：US489509
申请日：1990-03-07
申请人： Nobufumi Nakagaki , Toshiyuki Kurita , Toshinori Murata , Kazuhiro Kaizaki , Sadao Kubota , Masanori Kamiya , Hiroshi Sekiya , Kenichi Fujiwara
发明人： Nobufumi Nakagaki , Toshiyuki Kurita , Toshinori Murata , Kazuhiro Kaizaki , Sadao Kubota , Masanori Kamiya , Hiroshi Sekiya , Kenichi Fujiwara
摘要： In a television receiver in which scanning for an incoming video signal is performed at a frequency n times as high as the input horizontal synchronous frequency by suitably controlling writing and reading on its video memory, the signals for writing and reading on the video memory unit are generated by a horizontal synchronization/deflection circuit. The horizontal synchronization/deflection circuit is arranged by having a clock generation/synchronous deflection circuit for generating reference signals to control the writing and reading on the video memory unit provided with a phase comparator such that a horizontal drive signal to drive a horizontal deflection circuit and a flyback pulse are brought in phase.
摘要翻译： 在通过适当地控制其视频存储器上的写入和读取的情况下，以输入水平同步频率的n倍的频率执行输入视频信号的扫描的电视接收机中，用于在视频存储器单元上进行写入和读取的信号是 由水平同步/偏转电路产生。 水平同步/偏转电路通过具有产生参考信号的时钟产生/同步偏转电路来布置，以控制在具有相位比较器的视频存储器单元上的写入和读取，使得驱动水平偏转电路的水平驱动信号和 回扫脉冲同时进入。
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公开(公告)号：US5134465A
公开(公告)日：1992-07-28
申请号：US564165
申请日：1990-08-08
申请人： Hideaki Ohki , Masanori Kamiya
发明人： Hideaki Ohki , Masanori Kamiya
摘要： In the invention, in order to correct only the hue of specific region of color correction of an image processing circuit for a television receiver or the like, using color detecting means for detecting specific color, color signals are inputted and two arbitrary demodulation axes are obtained, and only negative component or positive component is extracted respectively from the output signals of the two means and the logic product of the extracted output signals is obtained. On the other hand, the output of the color detecting means is controlled in response to the signal level of the prescribed color signal, and then adding is performed to the prescribed color signal and the color correction is performed.
摘要翻译： 在本发明中，为了仅校正电视接收机等的图像处理电路的颜色校正的特定区域的色调，使用用于检测特定颜色的颜色检测装置，输入彩色信号并获得两个任意的解调轴 ，并且仅从两个装置的输出信号中分别提取负分量或正分量，并且获得所提取的输出信号的逻辑积。 另一方面，颜色检测装置的输出根据规定的颜色信号的信号电平进行控制，然后对规定的颜色信号进行相加，并进行颜色校正。
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