Narrowed-electrode pickup stylus for video disc systems
    1.
    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。

    Defect compensation for color television
    2.
    发明授权
    Defect compensation for color television 失效
    彩色电视缺陷补偿

    公开(公告)号:US4272785A

    公开(公告)日:1981-06-09

    申请号:US44364

    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 of the type that substitutes a portion of delayed signal information for a real-time signal defect including circuitry for correcting chrominance phase reversal. The delayed signal is sampled at 1/2 the period of the chrominance before and after a 1H delay. The signal samples are summed and proportioned to provide a substitution signal having its chrominance signal in phase with the real time signal, and an average luminance signal exhibiting non-observable distortion.

    摘要翻译: 这种类型的缺陷补偿电路将延迟的信号信息的一部分替换为包括用于校正色度相位反转的电路的实时信号缺陷。 延迟信号在1H延迟之前和之后的色度周期的1/2处进行采样。 将信号样本相加并成比例,以提供具有与实时信号同相的色度信号的替代信号,以及表现出不可观察到的失真的平均亮度信号。

    Television system with menu like function control selection
    5.
    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。

    Compatible widescreen television system
    8.
    发明授权
    Compatible widescreen television system 失效
    兼容宽屏电视系统

    公开(公告)号:US5070396A

    公开(公告)日:1991-12-03

    申请号:US435227

    申请日:1989-11-06

    IPC分类号: H04N11/24

    CPC分类号: H04N11/008

    摘要: In a widescreen signal encoding system for a television-type signal, side panel chrominance information is conveyed in double sideband form on an auxiliary subcarrier having a field inverting phase relative to the phase of a standard chrominance subcarrier. Side panel high frequency luminance information exclusive of low frequency information also is conveyed on the auxiliary subcarrier, but in single sideband form. Illustratively the auxiliary subcarrier is at the 3.58 MHz frequency of the standard chrominance subcarrier.

    摘要翻译: 在用于电视型信号的宽屏信号编码系统中,侧面色度信息以相对于标准色度副载波的相位具有场反相的副载波的双边带形式传送。 排除低频信息的侧面板高频亮度信息也在辅助副载波上传送,但是以单边带形式传送。 说明性地,辅助副载波处于标准色度副载波的3.58MHz频率处。

    Video signal time expansion/compression apparatus using programmed
output values
    9.
    发明授权
    Video signal time expansion/compression apparatus using programmed output values 失效
    视频信号时间扩展/压缩设备使用编程输出值

    公开(公告)号:US4914507A

    公开(公告)日:1990-04-03

    申请号:US228193

    申请日:1988-08-04

    IPC分类号: H04N11/24

    CPC分类号: H04N11/008

    摘要: A system for expanding/compressing a video signal includes a dual-port memory having read and write address inputs and a video signal input. A pixel counter provides a pixel location signal to the write address input of the dual-port memory, and to a programmed memory device (e.g., a PROM) including a look-up table. The memory device is programmed to provide a time expanded/compressed version of the pixel location signal in accordance with a programmed time expansion/compression factor, which is applied to the read address input of the dual-port memory. A time expanded/compressed video signal is developed at the output of the dual-port memory.

    摘要翻译: 用于扩展/压缩视频信号的系统包括具有读和写地址输入和视频信号输入的双端口存储器。 像素计数器向双端口存储器的写入地址输入和包括查找表的编程存储器件(例如,PROM)提供像素位置信号。 存储器件被编程为根据编程的时间扩展/压缩因子来提供像素位置信号的时间扩展/压缩版本,其被应用于双端口存储器的读取地址输入。 在双端口存储器的输出端开发时间扩展/压缩视频信号。

    Compatible television system with companding of auxiliary signal
encoding information
    10.
    发明授权
    Compatible television system with companding of auxiliary signal encoding information 失效
    兼容电视系统,扩展辅助信号编码信息

    公开(公告)号:US4855824A

    公开(公告)日:1989-08-08

    申请号:US139339

    申请日:1987-12-29

    申请人: Jack S. Fuhrer

    发明人: Jack S. Fuhrer

    IPC分类号: G06T9/00 H04N11/24

    CPC分类号: G06T9/004 H04N11/008

    摘要: An NTSC compatible, single channel widescreen EDTV system encodes and decodes a television signal comprising (1) a main, standard format NTSC signal wth auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) auxiliary high frequency side panel image information; and (3) auxiliary high frequency horizontal luminance information. High frequency components 2 and 3 are subjected to non-linear amplitude companding, with large amplitude compression at an encoder and inverse amplitude expansion at a decoder.

    摘要翻译: NTSC兼容的单通道宽屏EDTV系统对电视信号进行编码和解码,包括(1)被压缩成其过扫描区域的辅助低频侧面板图像信息的主标准格式NTSC信号; (2)辅助高频侧面图像信息; 和(3)辅助高频水平亮度信息。 高频分量2和3受到非线性幅度压扩,在编码器处具有大幅度压缩,在解码器处具有反幅度扩展。