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。

公开(公告)号：US5155580A

公开(公告)日：1992-10-13

申请号：US638301

申请日：1991-01-07

申请人： James J. Gibson ,  Robert N. Hurst, Jr. ,  Jack S. Fuhrer ,  Terrence R. Smith

发明人： James J. Gibson ,  Robert N. Hurst, Jr. ,  Jack S. Fuhrer ,  Terrence R. Smith

IPC分类号： H04N11/24

CPC分类号： H04N11/008 ,  Y10S348/903

摘要： In a television signal processing system of the type which encodes an auxiliary carrier modulated with auxiliary image information in line format, which carrier is placed within the spectral band of standard television signal components, and wherein the modulated auxiliary carrier tends to interfere with the standard television signal, the interference is minimized by spatially variably attenuating the auxiliary image information. The attenuation function is selected to apply greater attenuation to the auxiliary image information at the extremities of the lines than toward the center of the lines.

摘要翻译： 在对以辅助图像信息进行调制的辅助载波进行编码的电视信号处理系统中，载波被放置在标准电视信号分量的谱带内，并且其中调制的辅助载波倾向于干扰标准电视 信号，通过空间可变地衰减辅助图像信息来最小化干扰。 衰减功能被选择为对线路的末端的辅助图像信息施加更大的衰减，而不是线路的中心。

公开(公告)号：US4888641A

公开(公告)日：1989-12-19

申请号：US252340

申请日：1988-10-03

申请人： Michael A. Isnardi ,  Terrence R. Smith ,  Jack S. Fuhrer ,  Barbara J. Roeder

发明人： Michael A. Isnardi ,  Terrence R. Smith ,  Jack S. Fuhrer ,  Barbara J. Roeder

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/46 ,  H04N11/24

CPC分类号： H04N11/008 ,  H04N11/004 ,  H04N19/577 ,  H04N19/30

摘要： A system for transmitting and receiving signals representing a high-definition television (HDTV) image is disclosed. The signals are sent over two conventional 6 MHz NTSC channels. A first signal, the main signal, is developed by encoding circuitry from HDTV source signals to be compatible with existing NTSC receivers in that it produces a display on those receivers which is not significantly distorted. The main signal includes psychophysically hidden video information which may be used by an extended definition receiver to produce a widescreen image having a higher level of detail than a conventional video image. A second signal, the auxiliary signal, is developed at the transmitter by decoding the main signal and subtracting the decoded main signal from the original HDTV source signals. The auxiliary signal, which includes frequency components from 0 Hz to 20 MHz is split into three bands, A (0 Hz-6MHz), B (6 MHz-12 MHz) and C (12 MHz-18 MHz). Bands B and C are frequency converted to occupy the 0 Hz-6 MHz band and are time division multiplexed on a line by line basis. The combined B and C bands are then time division multiplexed with the A band on a frame by frame basis for still images. For moving images, only the A band is sent. The receiver decodes the main signal, and, using a motion signal sent with the main signal, decodes the auxiliary signal. The decoded main and auxiliary signals are combined to reproduce the HDTV image.

摘要翻译： 公开了一种用于发送和接收表示高分辨率电视（HDTV）图像的信号的系统。 信号通过两个常规的6 MHz NTSC通道发送。 第一个信号，主要信号，由HDTV源信号的编码电路开发，以与现有的NTSC接收机兼容，因为它在这些接收机上产生不显着失真的显示。 主要信号包括心理物理隐藏的视频信息，其可由扩展定义接收机使用以产生具有比常规视频图像更高的细节水平的宽屏幕图像。 通过对主信号进行解码并从原始HDTV信号中减去解码的主信号，在发送器处产生第二信号辅助信号。 包括0Hz至20MHz频率分量的辅助信号分为A（0Hz-6MHz），B（6MHz-12MHz）和C（12MHz-18MHz）三个频带。 频带B和频段C被频率转换成占用0Hz-6MHz频带，并逐行进行时分复用。 然后，对于静止图像，组合的B和C频带逐帧地与A频带进行时分复用。 对于运动图像，只发送A波段。 接收机解码主信号，并使用与主信号一起发送的运动信号，对辅助信号进行解码。 解码的主和辅助信号被组合以再现HDTV图像。

公开(公告)号：US4524447A

公开(公告)日：1985-06-18

申请号：US498151

申请日：1983-05-25

申请人： Donald H. Willis ,  Jack S. Fuhrer

发明人： Donald H. Willis ,  Jack S. Fuhrer

IPC分类号： H04N1/405 ,  G06F17/10 ,  G06T5/00 ,  G06T9/00 ,  H03H17/02 ,  H03M1/04 ,  H03M1/20 ,  H03M7/30 ,  H03M7/36 ,  H04N9/64 ,  H04N11/04 ,  H04N9/50 ,  H04N9/32

CPC分类号： H04N9/64

摘要： The present invention provides for the generation of digitally dithered digital signals which can have an apparent quantizing resolution unaffected by truncation of the least significant bit. The truncated digital signal is dithered in an ordered fashion by adding thereto a bit developed in response to one condition of the truncated bit and is not dithered in response to another condition thereof. The original digital signal can be reconstructed by combining successive samples of the truncated digital signals. One feature of the present invention provides a truncation of digital signals.

摘要翻译： 本发明提供数字抖动数字信号的产生，其可以具有不受截断最低有效位影响的明显量化分辨率。 截断的数字信号以有序的方式通过加上响应于截断位的一个条件而产生的位而被响应，并且响应于其另一个条件而不抖动。 原始数字信号可以通过组合截断的数字信号的连续样本来重建。 本发明的一个特征提供了数字信号的截断。

公开(公告)号：US4451849A

公开(公告)日：1984-05-29

申请号：US391415

申请日：1982-06-23

申请人： Jack S. Fuhrer

发明人： Jack S. Fuhrer

IPC分类号： H04N5/58 ,  H04N9/535

CPC分类号： H04N5/58

摘要： The contrast of an image reproduced by a television receiver is manually adjustable by means of a picture control potentiometer, and automatically adjustable by means of an ambient light responsive circuit. Automatic picture control is accomplished selectively, independent of the manual control setting, in accordance with a predetermined combination of ambient light and image brightness levels such that the contrast of bright images, rather than the contrast of all images, is automatically reduced in low ambient light. In a preferred embodiment such automatic picture control is accomplished by using the light responsive circuit to control the threshold operating level of an automatic kinescope beam current limiter of the receiver.

摘要翻译： 由电视接收机再现的图像的对比度可以通过图像控制电位器手动调节，并且可以通过环境光响应电路自动调节。 根据环境光和图像亮度水平的预定组合，选择性地完成自动图像控制，而与手动控制设置无关，使得在低环境光下自动降低亮度图像的对比度而不是所有图像的对比度 。 在优选实施例中，通过使用光响应电路来控制接收器的自动显像管光束限流器的阈值操作电平来实现这种自动图像控制。

公开(公告)号：US5623344A

公开(公告)日：1997-04-22

申请号：US293639

申请日：1994-08-19

申请人： Frank A. Lane ,  Joseph E. Augenbraun ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael A. Plotnick

发明人： Frank A. Lane ,  Joseph E. Augenbraun ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael A. Plotnick

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B15/12 ,  G11B15/18 ,  G11B20/12 ,  G11B27/00 ,  G11B27/30 ,  H04N5/44 ,  H04N5/775 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/93 ,  H04N5/945 ,  H04N7/015 ,  H04N7/26 ,  H04N7/52 ,  H04N9/78 ,  H04N9/79 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82 ,  H04N9/888 ,  H04N19/89 ,  H04N5/76 ,  H04N5/78

CPC分类号： G11B15/1875 ,  G11B20/1207 ,  G11B27/005 ,  G11B27/3027 ,  H04N19/37 ,  H04N19/89 ,  H04N21/4147 ,  H04N21/4334 ,  H04N5/4401 ,  H04N5/93 ,  H04N7/015 ,  H04N7/52 ,  H04N9/78 ,  H04N9/8042 ,  H04N9/8047 ,  G11B15/125 ,  G11B2220/90 ,  G11B5/0086 ,  G11B5/09 ,  H04N5/775 ,  H04N5/78263 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/945 ,  H04N9/7921 ,  H04N9/8066 ,  H04N9/8227 ,  H04N9/888

摘要： A digital video tape recorder ("VTR") that selects data useful for generating images during trick playback operation and records the data in trick play tape segments arranged on a tape to form fast scan tracks and multi-speed playback tracks. Each fast scan track comprises trick play tape segments located on a diagonal, relative to the length of the tape, of the same angle as the angle at which the heads of a VTR are expected to pass over the tape during trick play operation at a specific speed and direction of operation. Each multi-speed playback track comprises a plurality of trick play tape segments arranged parallel to the length of the tape. Data which is used for at least one mode of trick play operation is recorded in each trick play tape segment. Each fast scan track and multi-speed track crosses multiple normal play tracks. During playback at a wide variety of speeds and directions, the heads pass over enough trick play segments of the multi-speed playback track to generate recognizable images during trick play operation. Data is recorded in each trick play segment in a manner that optimizes the amount of data that can be routinely recovered during trick playback operation despite tracking errors.

摘要翻译： 一种数字录像机（“VTR”），其选择在特技播放操作期间生成图像的数据，并将数据记录在布置在磁带上的特技播放磁带段中以形成快速扫描轨道和多速重放轨道。 每个快速扫描轨道包括相对于磁带长度位于对角线上的特技播放磁带段，其角度与在特定播放操作期间期望VTR的磁头经过磁带的角度相同的角度 速度和操作方向。 每个多速播放轨道包括平行于磁带的长度布置的多个特技播放磁带片段。 用于至少一种特技播放操作模式的数据被记录在每个特技播放磁带段中。 每个快速扫描轨道和多速度轨道穿过多个正常播放轨道。 在以各种各样的速度和方向播放期间，头部通过多速播放轨道的足够的特技播放段，以在特技播放操作期间产生可识别的图像。 数据被记录在每个特技播放段中，以尽可能优化在特技重放操作期间常规恢复的数据量，尽管跟踪错误。

公开(公告)号：US5377051A

公开(公告)日：1994-12-27

申请号：US003889

申请日：1993-01-13

申请人： Frank A. Lane ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Michael A. Plotnick

发明人： Frank A. Lane ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Michael A. Plotnick

IPC分类号： G11B5/008 ,  G11B15/12 ,  G11B15/18 ,  G11B15/467 ,  G11B27/00 ,  H04N5/7826 ,  H04N5/783 ,  H04N7/26 ,  H04N7/54 ,  H04N9/804 ,  H04N9/82 ,  H04N9/888 ,  H04N21/236 ,  H04N21/4147 ,  H04N21/434 ,  H04N5/78

CPC分类号： H04N19/00 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4675 ,  G11B27/005 ,  G11B5/0086 ,  H04N19/184 ,  H04N19/37 ,  H04N19/61 ,  H04N19/895 ,  H04N21/236 ,  H04N21/4147 ,  H04N21/434 ,  H04N7/54 ,  H04N9/8042 ,  H04N9/888 ,  G11B15/4673 ,  G11B2220/90 ,  H04N19/30 ,  H04N5/78263 ,  H04N5/783 ,  H04N9/8227

摘要： A video recorder compatible receiver for receiving video data from a video recorder such as a video tape recorder ("VTR"). The receiver includes an error concealment circuit, a digital VTR port adapted for coupling to a VTR and/or a tuner module. The receiver receives digital video data from the VTR by either the digital VTR port or the tuner module. VTR commands may also be received from a VTR. Upon receiving a VTR command indicating that the VTR is operating in trick play mode or upon detecting video data that is indicative of VTR trick play operation, the error concealment circuit of the receiver disables normal play error concealment and enables trick play error concealment. The error concealment circuit may perform temporal and spatial filtering on the video data received from the VTR when trick play error concealment is enabled.

摘要翻译： 一种用于从诸如录像机（“VTR”）的录像机接收视频数据的视频记录器兼容接收器。 接收机包括错误隐藏电路，适于耦合到VTR和/或调谐器模块的数字VTR端口。 接收机通过数字VTR端口或调谐器模块从VTR接收数字视频数据。 也可以从VTR接收VTR命令。 当接收到指示VTR正在特技播放模式下操作的VTR命令时，或者在检测到指示VTR特技播放操作的视频数据时，接收器的错误隐藏电路禁用普通播放错误隐藏，并且能够进行特技播放错误隐藏。 当特技播放错误隐藏被启用时，错误隐藏电路可以对从VTR接收的视频数据执行时间和空间滤波。

公开(公告)号：US4933765A

公开(公告)日：1990-06-12

申请号：US238694

申请日：1988-08-30

申请人： Leonard N. Schiff ,  Jack S. Fuhrer

发明人： Leonard N. Schiff ,  Jack S. Fuhrer

IPC分类号： H04N11/14 ,  H04N7/015 ,  H04N7/26 ,  H04N9/64 ,  H04N11/24

CPC分类号： H04N11/002 ,  H04N7/015 ,  H04N9/646

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。

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

IPC分类号： H04N9/77 ,  B27G19/10 ,  H03G11/00 ,  H04N1/40 ,  H04N9/64 ,  H04N9/78 ,  H04N9/535

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。

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

IPC分类号： H04N5/94 ,  G11B20/06 ,  H04N9/882 ,  H04N5/76

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。