System for connecting a video signal recording/reproducing apparatus and
a television receiver
    21.
    发明授权
    System for connecting a video signal recording/reproducing apparatus and a television receiver 失效
    用于连接视频信号记录/再现装置和电视接收机的系统

    公开(公告)号:US4864421A

    公开(公告)日:1989-09-05

    申请号:US092878

    申请日:1987-09-03

    IPC分类号: H04N5/775 H04N9/79

    CPC分类号: H04N5/775 H04N9/79

    摘要: In a system for connecting a video signal recording/reproducing apparatus and a color TV receiver, two component signals--a luminace signal and a carrier chrominance signal--are transmitted separately from each other from the video signal recording/reproducing apparatus to the TV receiver. The video signal recording/reproducing apparatus has first and second output terminals for respectively outputting luminance and carrier chrominance signals obtained from a color video signal reproduced from a recording medium. The color TV receiver has first and second input terminals adapted to be respectively connected to the first and second output terminals of the video signal recording/reproducing apparatus for receiving the luminace and carrier chrominance signals. The color TV receiver may be provided with a switching circuit for selecting a composite video signal received in the conventional manner or the separately received two component signals.

    摘要翻译: 在用于连接视频信号记录/再现装置和彩色TV接收机的系统中,将两个分量信号 - 亮度信号和载波色度信号 - 从视频信号记录/再现装置彼此分离地发送到TV接收机。 视频信号记录/再现装置具有用于分别输出从从记录介质再现的彩色视频信号中获得的亮度和载波色度信号的第一和第二输出端。 彩色TV接收机具有适于分别连接到视频信号记录/再现装置的第一和第二输出端的第一和第二输入端,用于接收亮度和载波色度信号。 彩色TV接收机可以设置有用于选择以常规方式接收的复合视频信号或单独接收的双分量信号的切换电路。

    Automatic focusing apparatus for camera
    22.
    发明授权
    Automatic focusing apparatus for camera 失效
    相机自动对焦装置

    公开(公告)号:US4673274A

    公开(公告)日:1987-06-16

    申请号:US776031

    申请日:1985-09-13

    IPC分类号: G03B3/10 G01S17/46 G02B7/32

    CPC分类号: G01S17/48 G02B7/32

    摘要: An automatic focusing system for a camera includes a light emitter for emitting a distance measuring light beam and a condenser lens for condensing the light beam reflected by an object. A light spot detector produces output signals corresponding to the position of the focused spot of reflected light impinging thereon. Various circuitry, including adders and subtracters and amplifiers and rectifiers and integrators are provided for processing the output signals of the light spot detector. A lens encoder detects the existing focusing position of a picture taking lens and further circuitry is provided for comparing the existing focusing position of the picture taking lens with a desired optimum focusing position and for driving the lens by a lens driving unit so as to move the lens to its optimum focusing position.

    摘要翻译: 用于照相机的自动对焦系统包括用于发射距离测量光束的光发射器和用于聚焦由物体反射的光束的聚光透镜。 光点检测器产生对应于其上照射的反射光的聚焦光点的位置的输出信号。 提供各种电路,包括加法器和减法器以及放大器和整流器和积分器,用于处理光点检测器的输出信号。 透镜编码器检测图像拍摄镜头的现有对焦位置,并且提供另外的电路用于将摄像镜头的现有聚焦位置与期望的最佳聚焦位置进行比较,并且用于通过透镜驱动单元驱动透镜, 透镜到其最佳聚焦位置。

    Signal generator for a color television transmitting system
    23.
    发明授权
    Signal generator for a color television transmitting system 失效
    用于彩色电视发射系统的信号发生器

    公开(公告)号:US4370673A

    公开(公告)日:1983-01-25

    申请号:US218012

    申请日:1980-12-18

    CPC分类号: H04N9/641

    摘要: A signal generator for a color television transmitting system improves the picture quality when color encoded signals are reproduced in the picture displayed by a conventional color television receiver. The system utilizes a primary color level detector, a color-difference level detector, and a luminance signal producer which outputs a luminance signal in response to the difference between the primary color level signal output from the primary color level detector and a color-difference level signal output from the color-difference level detector. The output luminance signal is then utilized in the transmission of a color television signal so that a conventional color television receiver may display a color picture having an improved quality.

    摘要翻译: 彩色电视发射系统的信号发生器在常规彩色电视接收机显示的图像中再现彩色编码信号时,提高了图像质量。 该系统利用原色电平检测器,色差电平检测器和亮度信号生成器,其响应于从原色电平检测器输出的原色电平信号和色差电平之间的差异而输出亮度信号 来自色差电平检测器的信号输出。 然后,输出亮度信号用于彩色电视信号的传输,使得常规的彩色电视接收机可以显示具有改善的质量的彩色图像。

    VIR Control of hue and saturation in RGB demodulator
    26.
    发明授权
    VIR Control of hue and saturation in RGB demodulator 失效
    VIR控制RGB解调器中的色相和饱和度

    公开(公告)号:US4261009A

    公开(公告)日:1981-04-07

    申请号:US907033

    申请日:1978-05-17

    CPC分类号: H04N9/68 H04N9/643

    摘要: A chrominance signal controlling apparatus for controlling the chrominance signal in a color television receiver employing a primary color signal demodulator providing red, green and blue primary color signals and not providing color difference signals comprises a luminance signal producing circuit for producing a luminance signal by mixing the three primary color signals, a subtracting circuit for producing a difference signal between one of the primary color signals and the luminance signal, and a comparing circuit for producing a control signal for controlling the chrominance signal level and/or phase by keeping the difference signal equal to a reference level.

    摘要翻译: 一种色度信号控制装置,用于在使用提供红色,绿色和蓝色原色信号并且不提供色差信号的原色信号解调器的彩色电视接收机中控制色度信号包括:亮度信号产生电路,用于通过将 三原色信号,用于产生原色信号和亮度信号之一之间的差分信号的减法电路,以及用于产生用于通过保持差信号相等来控制色度信号电平和/或相位的控制信号的比较电路 参考水平。

    Circuitry for nonlinear processing of reference white on color image
    27.
    发明授权
    Circuitry for nonlinear processing of reference white on color image 失效
    参考白色彩色图像非线性处理电路

    公开(公告)号:US4127868A

    公开(公告)日:1978-11-28

    申请号:US762188

    申请日:1977-01-24

    IPC分类号: H04N9/73 H04N9/535

    CPC分类号: H04N9/73

    摘要: A picture quality improving apparatus for a color television receiver in which red, green and blue system nonlinearities n.sub.R, n.sub.G and n.sub.B are similar to each other. The picture quality is improved by so adjusting the values of the three cathode resistances connected to the three cathodes of the picture tube to satisfy the relation n.sub.B >n.sub.G .gtoreq.n.sub.R.

    摘要翻译: 一种彩色电视接收机的图像质量改进装置,其中红色,绿色和蓝色系统非线性nR,nG和nB彼此相似。 通过调整连接到显象管的三个阴极的三个阴极电阻的值来满足nB> nG> / = nR的关系,改善了图像质量。

    Automatic hue-control apparatus for color television receivers
    28.
    发明授权
    Automatic hue-control apparatus for color television receivers 失效
    彩色电视接收机的自动调色装置

    公开(公告)号:US4001879A

    公开(公告)日:1977-01-04

    申请号:US73017

    申请日:1970-09-17

    IPC分类号: H04N9/64 H04N9/12

    CPC分类号: H04N9/643

    摘要: An automatic hue-control apparatus having an improved means to keep the color for flesh in the reproduced picture the same as the memory-color for flesh. The apparatus has a signal extracting means for extracting the signal components of the flesh color from the chrominance signals and which feeds these signal components to a phase error detecting means for detecting the phase error between the output signal of the signal extracting means and a reference signal which is in phase quadrature to the phase of the memory-color for flesh. The phase error detecting means produces an error signal indicative of the phase relation between the signals and supplies an output signal to a variable phase-shifting means which is controlled by the output signal of said phase error detecting means to correct the phase error between the chrominance signal and subcarrier reference signal.

    Method and apparatus for transmitting, encoding and decoding video signal and recording/reproducing method of optical disc
    29.
    发明授权
    Method and apparatus for transmitting, encoding and decoding video signal and recording/reproducing method of optical disc 失效
    用于发送,编码和解码图像信号的方法和装置,以及用于光盘的记录和再现方法

    公开(公告)号:US06614846B1

    公开(公告)日:2003-09-02

    申请号:US09117793

    申请日:1998-12-17

    IPC分类号: H04B166

    摘要: The present invention includes a motion vector detector for detecting motion vectors using a first image signal of high resolution; a resolution reducer for creating a second image signal of low resolution from the first image signal; an image signal interpolater for interpolating the second image signal so that it has the same number of pixels as the first image signal, thereby creating an interpolated signal; a differentiator for determining a differential between the first image signal and the interpolated signal; and an encoder for using the motion vectors to high-efficiency-encode the differential signal. Thus, by encoding two types of image signals of different resolutions, the present invention improves the accuracy of the motion vectors during the encoding of the high-resolution signal and reduces the rate after encoding due to the encoding of the differential signal.

    摘要翻译: 本发明包括使用高分辨率的第一图像信号来检测运动矢量的运动矢量检测器; 分辨率降低器,用于从所述第一图像信号产生低分辨率的第二图像信号; 图像信号内插器,用于内插第二图像信号,使得其具有与第一图像信号相同数量的像素,从而产生内插信号; 用于确定第一图像信号和内插信号之间的差分的微分器; 以及用于使用运动矢量对差分信号进行高效编码的编码器。 因此,通过编码不同分辨率的两种类型的图像信号,本发明在高分辨率信号的编码期间提高了运动矢量的精度,并且由于差分信号的编码而降低了编码之后的速率。

    Video tape recorder for recording and reproducing two-channel component
signals of a video signal on a magnetic tape using two pair of heads
and alternately delayed signals
    30.
    发明授权
    Video tape recorder for recording and reproducing two-channel component signals of a video signal on a magnetic tape using two pair of heads and alternately delayed signals 失效
    用于使用两对头和交替延迟的信号在磁带上记录和再现视频信号的两声道分量信号的录像机

    公开(公告)号:US4811117A

    公开(公告)日:1989-03-07

    申请号:US947411

    申请日:1986-12-24

    CPC分类号: H04N9/825

    摘要: A video tape recorder for recording two-channel component signals of a video signal on a magnetic tape and for reproducing the recorded signals includes a recording signal processing system for processing the two-channel component signals into first and second recordable signals, an electromagnetic conversion system including two pairs of magnetic heads for recording the first and second recordable signals, respectively, on the magnetic tape and for reproducing the first and second recorded signals, respectively, and a reproduced signal processing system for processing the reproduced signals into representations of the original two-channel component signals. Each pair of heads of the two pairs of heads are disposed so as to be apart by 180.degree. from each other on a rotary cylinder and so as to be apart by 90.degree. from each head of the other pair of heads.

    摘要翻译: 用于在磁带上记录视频信号的双声道分量信号并用于再现记录信号的磁带录像机包括用于将双通道分量信号处理为第一和第二可记录信号的记录信号处理系统,电磁转换系统 包括分别用于在磁带上记录第一和第二可记录信号的两对磁头和分别用于再现第一和第二记录信号的再现信号处理系统,以及再现信号处理系统,用于将再现信号处理成原始两个 通道分量信号。 两对头的每一对头部设置成在旋转圆筒上彼此分开180°,并且与另一对头部的每个头部分开90°。