Enhanced TV system using transmitted error signals
    3.
    发明授权
    Enhanced TV system using transmitted error signals 失效
    增强型电视系统使用传输的错误信号

    公开(公告)号:US4933765A

    公开(公告)日:1990-06-12

    申请号:US238694

    申请日:1988-08-30

    摘要: A television system for generating video signals for reception by a receiver having adaptive processing circuitry susceptible of errors includes circuitry for emulating portions of the receiver and detecting the occurrences of such errors. A signal representing the occurrences of the errors is generated and combined with the transmitted video signal. At the receiver the error signal is separated from the video signal and utilized by the adaptive processing circuitry to ameliorate the effects of such errors.

    摘要翻译: 用于产生用于由具有易错误的自适应处理电路的接收机接收的视频信号的电视系统包括用于模拟接收机的部分并检测这种错误的发生的电路。 产生表示错误发生的信号并与所发送的视频信号组合。 在接收机处,误差信号与视频信号分离,并由自适应处理电路利用,以改善这种误差的影响。

    Non-linear processing of video image vertical detail information
    4.
    发明授权
    Non-linear processing of video image vertical detail information 失效
    视频图像的非线性处理垂直细节信息

    公开(公告)号:US4245238A

    公开(公告)日:1981-01-13

    申请号:US38203

    申请日:1979-05-11

    申请人: Jack S. Fuhrer

    发明人: Jack S. Fuhrer

    CPC分类号: H04N9/78 H03G11/002

    摘要: In a color television receiver including a comb filter for separating luminance and chrominance components of a color television signal, a network is included for selectively restoring, enhancing and paring vertical image detail to preserve and enhance vertical resolution in the luminance content of a displayed image. The comb filter provides a combed luminance signal output from which vertical detail signal information has been unavoidably deleted, and a combed chrominance signal output including signal frequency components representative of the deleted detail signal, which are selectively extracted from the combed chrominance signal. Low level detail signals are restored to the combed luminance signal via a first signal processing network which exhibits a prescribed signal restoration gain. The detail signal is also combined with the combed luminance signal via a second signal processing network which cores (removes) low level detail signals including noise, enhances moderate level detail signals through amplification to enhance vertical image definition, and pares (amplitude reduces) high level detail signals. A resultant reconstituted luminance component manifests restored low level vertical detail information, enhanced moderate level vertical detail information without enhancing unwanted signal components such as noise, and pared high level detail signals to avoid excessive contrast.

    摘要翻译: 在包括用于分离彩色电视信号的亮度和色度分量的梳状滤波器的彩色电视接收机中,包括用于选择性地恢复,增强和配对垂直图像细节的网络,以保持和增强显示图像的亮度内容中的垂直分辨率。 梳状滤波器提供梳状亮度信号输出,垂直细节信号信息已经不可避免地被删除,以及梳状色度信号输出,包括代表删除的细节信号的信号频率分量,其从精梳色度信号中选择性地提取。 低电平细节信号经由展现规定信号恢复增益的第一信号处理网络恢复到精梳亮度信号。 细节信号还通过第二信号处理网络与梳状亮度信号相结合,第二信号处理网络核心(去除)包括噪声的低电平细节信号,通过放大增强中等电平细节信号,以增强垂直图像定义,以及削减(幅度降低)高电平 细节信号。 所产生的重构亮度分量表现出恢复的低水平垂直细节信息,增强的中等水平垂直细节信息,而不增强诸如噪声的不期望的信号分量,以及削减的高电平细节信号,以避免过度的对比度。

    Defect compensation for color television
    5.
    发明授权
    Defect compensation for color television 失效
    彩色电视缺陷补偿

    公开(公告)号:US4232340A

    公开(公告)日:1980-11-04

    申请号:US44532

    申请日:1979-06-01

    申请人: Jack S. Fuhrer

    发明人: Jack S. Fuhrer

    CPC分类号: H04N9/882

    摘要: A defect compensation circuit which substitutes a portion of delayed signal information for a real-time signal defect. A capacitor passes the a-c component of the delayed signal and stores the d-c component of the real-time signal to preclude the occurrence of d-c shifts upon effecting the substitution of signal.

    摘要翻译: 将延迟信号信息的一部分代替实时信号缺陷的缺陷补偿电路。 电容器通过延迟信号的a-c分量并存储实时信号的d-c分量,以防止在进行信号替换时出现d-c位移。

    Video image vertical detail restoration and enhancement
    6.
    发明授权
    Video image vertical detail restoration and enhancement 失效
    视频图像垂直细节恢复和增强

    公开(公告)号:US4223339A

    公开(公告)日:1980-09-16

    申请号:US38202

    申请日:1979-05-11

    CPC分类号: H04N9/646

    摘要: In a color television receiver including a comb filter for separating luminance and chrominance components of a color television signal, a network is included for selectively restoring and enhancing vertical image detail to preserve and enhance vertical resolution in the luminance content of a displayed image. The comb filter provides a combed luminance signal output from which vertical detail signal information has been unavoidably deleted, and a combed chrominance signal output including signal frequency components representative of the deleted signal, which are selectively extracted from the combed chrominance signal. Low level detail signals are restored to the combed luminance signal via a first signal processing network with a prescribed restoration gain. The detail signal is also combined with the combed luminance signal via a second signal processing network which cores (removes) low level detail signals including noise, and enhances higher level detail signals through amplification to enhance vertical image definition. A resultant reconstituted luminance component manifests restored low level vertical detail information as well as enhanced higher level vertical detail information, without enhancing unwanted signal components such as noise.

    摘要翻译: 在包括用于分离彩色电视信号的亮度和色度分量的梳状滤波器的彩色电视接收机中,包括用于选择性地恢复和增强垂直图像细节的网络,以保持和增强显示图像的亮度内容中的垂直分辨率。 梳状滤波器提供梳状亮度信号输出,从而不可避免地删除垂直细节信号信息,以及包括代表删除信号的信号频率分量的梳状色度信号输出,其从精梳色度信号中选择性地提取。 低电平细节信号通过具有规定恢复增益的第一信号处理网络恢复到精梳亮度信号。 细节信号还通过第二信号处理网络与梳状亮度信号相结合,第二信号处理网络对包含噪声的低级细节信号进行核心(去除),并且通过放大来增强更高级的细节信号以增强垂直图像定义。 所得到的重构亮度分量表现出恢复的低水平垂直细节信息以及增强的较高级垂直细节信息,而不增强诸如噪声的不期望的信号分量。

    Television system with menu like function control selection
    9.
    发明授权
    Television system with menu like function control selection 失效
    具有菜单功能控制选择的电视系统

    公开(公告)号:US4626892A

    公开(公告)日:1986-12-02

    申请号:US586271

    申请日:1984-03-05

    摘要: Apparatus for controlling various functions of a television receiver such as the picture and audio responses includes a keyboard with numbered keys which are normally used for selecting channels and a program key. When the program key is pressed, an on-screen character generator is caused to display a numbered list or menu of the various functions to be controlled. Thereafter, a particular function can be selected for control by pressing the correspondingly numbered key. This causes the numbered list or menu of the characteristics of the selected function, e.g., the brightness, contrast, sharpness, color level and color tint of the picture, to be displayed. Thereafter a particular characteristic can be selected for control by pressing the correspondingly numbered key.

    摘要翻译: 用于控制诸如图像和音频响应的电视接收机的各种功能的装置包括具有通常用于选择频道的编号的键盘和程序键。 当按下程序键时,使屏幕上的字符发生器显示要控制的各种功能的编号列表或菜单。 此后,可以通过按下相应编号的键来选择特定的功能来进行控制。 这使得显示所选功能的特征的编号列表或菜单,例如图像的亮度,对比度,清晰度,色彩级别和色彩色调。 此后,可以通过按下相应编号的键来选择特定的特性来进行控制。

    Narrowed-electrode pickup stylus for video disc systems
    10.
    发明授权
    Narrowed-electrode pickup stylus for video disc systems 失效
    用于视盘系统的窄电极拾音笔

    公开(公告)号:US4124867A

    公开(公告)日:1978-11-07

    申请号:US782020

    申请日:1977-03-28

    IPC分类号: G11B3/46 G11B3/44

    CPC分类号: G11B3/46

    摘要: A novel pickup stylus adapted for playing back prerecorded signals from a video disc has an arrowhead-shape cross-section in the region of its tip. The pickup stylus includes a dielectric support element which has a prow defining the apex of the arrowhead-shape cross-section and a substantially flat rear surface remote from the prow defining the base of the arrowhead-shape cross-section. The entire rear surface is covered with conductive material to form a narrowed-electrode in the region of its tip.

    摘要翻译: 一种适用于从视频盘播放预先记录的信号的新型拾音笔在其尖端区域中具有箭头形横截面。 拾纸笔包括介电支撑元件,其具有限定箭头形横截面的顶点的开口,以及远离限定箭头形状横截面的基部的起飞器的基本平坦的后表面。 整个后表面被导电材料覆盖,以在尖端的区域中形成变窄的电极。