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51.发明授权
公开(公告)号：US4910605A
公开(公告)日：1990-03-20
申请号：US344513
申请日：1989-04-26
申请人： Seishi Sasaki , Mitsuo Chiba , Tatsushi Bannai , Shigeru Awamoto
发明人： Seishi Sasaki , Mitsuo Chiba , Tatsushi Bannai , Shigeru Awamoto
IPC分类号： F16K11/07 , H04N5/7826 , H04N5/92 , H04N9/797 , H04N9/87
CPC分类号： H04N5/78266 , H04N5/92 , H04N9/7973 , H04N9/87
摘要： A video signal recording method and apparatus for-recording each field of a video signal as a plurality of segments on respective tracks of a magnetic tape, in which each segment consists of a sequentially-ordered set of scanning lines which constitute a fraction of the total scanning lines of the field and which extend substantially over the entire field, for example all of the even-numbered or all of the odd-numbered lines of the field. Since each recording track contains scanning lines extending sequentially over one field, a playback signal providing a correctly ordered display image is obtained for playback operation at speeds higher or lower than the standard speed, while utilizing the same recording and playback signal processing circuits as are utilized during standard speed operation.
摘要翻译： 一种视频信号记录方法和装置，用于将视频信号的每个场作为磁带的相应轨道上的多个段记录，其中每个段由顺序排列的扫描线组构成，该组扫描线构成总数的一部分 扫描场的扫描线并且基本上在整个场上延伸，例如场的所有偶数或全部奇数行。 由于每个记录轨道包含在一个场上顺序延伸的扫描线，所以在利用与所使用的相同的记录和重放信号处理电路的情况下，以高于或低于标准速度的速度获得提供正确排序的显示图像的重放信号用于重放操作 在标准速度运行。
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公开(公告)号：US4879606A
公开(公告)日：1989-11-07
申请号：US205146
申请日：1988-06-06
CPC分类号： H04N11/008 , H04N9/7976 , H04N9/82
摘要： Extended definition television (EDTV) signals including a compatible composite wideband signal and a separate helper or extended definition signal are combined, for example, for recording purposes, using frequency multiplexing techniques. The helper signal is applied to a modulator, which produces a suppressed carrier modulated signal, to frequency shift the helper signal to a spectral band above the frequency band occupied by the compatible composite wideband signal. The frequency shifted and wideband signal are then added to form the combined signal.
摘要翻译： 包括兼容的复合宽带信号和单独的辅助或扩展定义信号的扩展清晰度电视（EDTV）信号例如用于记录目的使用频率复用技术进行组合。 辅助信号被施加到调制器，其产生抑制的载波调制信号，以将辅助信号频率移位到由兼容复合宽带信号占据的频带之上的频带。 然后将频移和宽带信号相加以形成组合信号。
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公开(公告)号：US4868679A
公开(公告)日：1989-09-19
申请号：US143642
申请日：1988-01-13
申请人： Hitoshi Kanamaru
发明人： Hitoshi Kanamaru
CPC分类号： H04N9/85 , H04N9/7973 , H04N9/8222
摘要： A method for recording broad-band color video signals in which the broad-band 3-color signals are separated into narrow-band 3-color signals and a high-band monochrome signal having a higher frequency band. The high-band monochrome signal is divided into three bands and frequency-converted respectively. The frequency-converted three bands of the high-band monochrome signal are merged into the narrow-band 3-color signals, while maintaining the frequency interlace relationship, so that three composite color video signals are produced. The thus produced three composite color video signals are recorded on different regions of recording medium.
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公开(公告)号：US4819086A
公开(公告)日：1989-04-04
申请号：US109376
申请日：1987-10-19
申请人： Hideki Hayashi , Tsutomu Honda
发明人： Hideki Hayashi , Tsutomu Honda
摘要： A multirecording method in which a multiplex sub-Nyquist-sampling video signal is multirecorded together with a predetermined signal, such as a pilot or audio signal, with no generation of striped-pattern interference in the reproduced picture. In accordance with the invention, the frequency of the predetermined signal is set at m/(2n+1) times as high as the horizontal scanning frequency of the video signal, where n is a natural number of m is a natural number other than an integral multiple of (2n+1).
摘要翻译： 一种多记录方法，其中复用子奈奎斯特采样视频信号与诸如导频或音频信号的预定信号一起被多重记录，在再现的图像中不产生条纹图案干扰。 根据本发明，预定信号的频率设定为视频信号的水平扫描频率的m /（2n + 1）倍，其中n是自然数，m是除 （2n + 1）的整数倍。
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公开(公告)号：US4812920A
公开(公告)日：1989-03-14
申请号：US68959
申请日：1987-07-01
申请人： Yoshitake Nagashima , Hisashi Ishikawa , Susumu Kozuki , Katsuji Yoshimura , Koji Takahashi , Kenichi Nagasawa
发明人： Yoshitake Nagashima , Hisashi Ishikawa , Susumu Kozuki , Katsuji Yoshimura , Koji Takahashi , Kenichi Nagasawa
IPC分类号： G11B15/467 , H04N5/7826 , H04N9/797 , H04N9/83 , H04N9/835 , G11B5/02 , H04N9/79
CPC分类号： H04N9/835 , G11B15/4675 , H04N5/78263 , H04N9/7973 , H04N9/832
摘要： A wide band video signal recording apparatus is arranged to simultaneously record, on a recording medium, multi-channel video signals which are obtained by frequency modulating a luminance signal included in a wide band video signal; by frequency dividing the frequency modulated luminance signal at different phases thereof to obtain multi-channel luminance signals; and by multiplexing a carrier chrominance signal included in the video signal with the low band of at least one of the multi-channel luminance signals.
摘要翻译： 宽带视频信号记录装置被配置为在记录介质上同时记录通过对包括在宽带视频信号中的亮度信号进行频率调制而获得的多声道视频信号; 通过在不同相位对频率调制亮度信号进行分频以获得多通道亮度信号; 并且将包括在视频信号中的载波色度信号与多声道亮度信号中的至少一个的低频带进行多路复用。
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56.发明授权Apparatus for recording a video signal sampled at frequency f.sub.s and reproducing the video signal as a signal essentially sampled at frequency 2f.sub.s 失效用于记录以频率fs采样的视频信号并再现视频信号作为基本上以频率2fs采样的信号的装置
公开(公告)号：US4682250A
公开(公告)日：1987-07-21
申请号：US620016
申请日：1984-06-13
申请人： Akira Hirota
发明人： Akira Hirota
CPC分类号： H04N9/797
摘要： A video signal recording and reproducing apparatus comprises a first sampling circuit for sampling a recording video signal which has a band with an upper limit frequency f.sub.a and is to be recorded by a sampling signal having a frequency f.sub.s, where the frequencies f.sub.a and f.sub.s satisfying a relation f.sub.a
摘要翻译： 视频信号记录和再现装置包括：第一采样电路，用于对具有上限频率fa的频带进行采样的记录视频信号进行采样，并由具有频率fs的采样信号进行记录，其中频率f a和f s满足 关系fa
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57.发明授权Television camera and recording system for high definition television having imagers of different frame rate 失效具有不同帧速率成像器的高分辨率电视的电视摄像机和记录系统
公开(公告)号：US4652909A
公开(公告)日：1987-03-24
申请号：US661656
申请日：1984-10-17
申请人： William E. Glenn
发明人： William E. Glenn
IPC分类号： F02B75/02 , H04N5/44 , H04N5/77 , H04N5/92 , H04N7/01 , H04N7/015 , H04N9/04 , H04N9/797 , H04N9/86 , H04N9/87 , H04N11/24 , H04N9/09
CPC分类号： H04N9/045 , H04N11/002 , H04N5/772 , H04N7/01 , H04N7/012 , H04N7/015 , H04N9/797 , H04N9/86 , H04N9/87 , F02B2075/027 , H04N5/9205
摘要： An apparatus and method for generating video signals using an improved camera system is disclosed. Video recording techniques which save bandwidth, and a temporal filter which is tailored to the eye's temporal response are also disclosed. In the camera apparatus, an optical means directs light from a scene to both a first video imaging device operating at a relatively fast frame rate and a second video imaging device operating at a relatively slow frame rate. The outputs of the two video imaging devices can be combined to obtain a high definition video signal.
摘要翻译： 公开了一种使用改进的相机系统产生视频信号的装置和方法。 还公开了节省带宽的视频记录技术以及针对眼睛的时间响应定制的时间滤波器。 在相机装置中，光学装置将来自场景的光引导到以相对较快的帧速率操作的第一视频成像装置和以相对较慢的帧速率操作的第二视频成像装置。 可以组合两个视频成像装置的输出以获得高分辨率视频信号。
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公开(公告)号：US4620217A
公开(公告)日：1986-10-28
申请号：US534592
申请日：1983-09-22
申请人： Jimmie D. Songer
发明人： Jimmie D. Songer
CPC分类号： H04N9/797 , H04N11/006
摘要： The full potential of high resolution television by synchronized modulation of the scan lines at the camera and display unit is achieved in standard transmission through band limited channels by: separating out of the video signal from the television camera the modulation frequency as sidebands with pixel information, for example 7.16.+-.1/2 MHz in the case of a color subcarrier at 3.58 MHz under the NTSC standards and pixel information modulated on sidebands in a narrow band (about .+-.1/2 MHz); converting the sidebands with pixel information down to within the color subcarrier band (in the range of 3.75 MHz to 4.2 MHz) using a heterodyne converter; and adding back to the video signal out of the camera the down-converted sidebands with pixel information before processing it through the color encoder for transmission through the bandwidth limited channel. The transmitted signal may be received and displayed by a standard television receiver or monitor, but to achieve the higher resolution which modulation of the scan line affords, the receiver, or monitor, must be modified to convert the color reference frequency to the line scan modulation frequency (synchronized with the color subcarrier) and, while using the color reference at the standard frequency for color decoding, using the modulation frequency to modulate the line scan of the color display tube at the same time the detected video signal is filtered to separate the down-converted sidebands with pixel information, convert the sidebands with pixel information back up to the modulation frequency using a heterodyne converter, and add the up-converted sidebands with pixel information back into the detected video signal for processing in the receiver or monitor modified to modulate the scan lines for display.
摘要翻译： 通过频带限制通道的标准传输，通过以下方式实现了在相机和显示单元上的扫描线的同步调制的高分辨率电视的全部潜力：通过以下方式实现：将来自电视摄像机的视频信号与调制频率分离成具有像素信息的边带， 例如在NTSC制式下为3.58MHz的彩色副载波的情况下为7.16 +/- 1 / 2MHz，在窄带（约+/- 1/2MHz）的边带上调制的像素信息; 使用外差转换器将像素信息的边带转换为彩色副载波频带内（在3.75MHz至4.2MHz的范围内）; 并且通过彩色编码器在通过带宽限制信道传输之前，将具有像素信息的下变频边带添加回相机中的视频信号。 发送的信号可以由标准电视接收机或监视器接收和显示，但是为了实现扫描线提供的调制更高的分辨率，接收器或监视器必须被修改，以将彩色参考频率转换成线扫描调制 频率（与彩色副载波同步），并且在使用用于颜色解码的标准频率处的颜色参考的同时，使用调制频率来同时对彩色显示管的线扫描进行滤波，以分离检测到的视频信号 使用像素信息进行下变频的边带，使用外差转换器将具有像素信息的边带转换回调制频率，并将具有像素信息的上变频边带添加到检测到的视频信号中，以在接收机或监视器中进行修改 调制扫描线进行显示。
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59.发明授权
公开(公告)号：US4232329A
公开(公告)日：1980-11-04
申请号：US957269
申请日：1978-11-03
CPC分类号： H04N5/772 , H04N9/7973 , Y10S358/906
摘要： A color video signal composed of successive groups of analog color samples, successive samples in at least some of said groups alternating between one color and another, wherein such groups represent successively scanned rows or lines of video frames or fields, is processed, prior to recording, by assigning respective samples to one of a plurality of channels of substantially equal bandwidth in a manner such that respective channels contain subgroups of samples representing only one color per subgroup, thereby minimizing the power at the sampling frequency in such channels. The information in the channels is recorded on a corresponding plurality of tracks on a recording medium by multi-channel essentially-fixed-head recording apparatus thereby realizing the manufacturing economy of essentially-fixed-head type apparatus. In one embodiment of the invention, samples of a first color occur more frequently in the color video signal than do samples of a second color, thereby maximizing the utilization of the information storage capacity of the recording medium.In a preferred implementation, the color video signal is generated by a solid state image sensing array having discrete image sensing elements selectively sensitized to green, red, or blue. Green-sensitive elements occur more frequently in the array than do red- or blue-sensitive elements in recognition of the fact that human visual acuity is higher for green, than for red or blue. The signal is separated sample-by-sample and the samples assigned to eight channels in a manner such that for each group of samples, the samples representing green (green samples) occupy four of the eight channels, and the samples representing red (red samples) and/or blue (blue samples) occupy the other four channels.
摘要翻译： 由连续的模拟颜色样本组组成的彩色视频信号，在至少一些所述组中的连续样本在一种颜色和另一种颜色之间交替，其中这些组表示连续扫描的视频帧或场的行或行，在记录之前被处理 通过将相应样本分配给基本相等带宽的多个信道中的一个，使得相应的信道包含仅表示每个子组的一种颜色的样本的子组，从而使这些信道中的采样频率处的功率最小化。 信道中的信息通过多通道基本固定头记录装置记录在记录介质上的相应多个磁道上，从而实现了基本上固定头型装置的制造经济性。 在本发明的一个实施例中，彩色视频信号中的第一颜色的样本比第二种颜色的样本更频繁出现，从而最大限度地利用记录介质的信息存储容量。 在优选实施方案中，彩色视频信号由具有选择性敏化为绿色，红色或蓝色的离散图像感测元件的固态图像感测阵列产生。 绿色敏感元素比红色或蓝色敏感元素更频繁地出现，以识别人类视觉敏锐度高于绿色，而不是红色或蓝色。 信号逐个采样分离，样品分配到八个通道，使得对于每组样品，表示绿色（绿色样品）的样品占据八个通道中的四个，并且表示红色（红色样品 ）和/或蓝色（蓝色样品）占据其他四个通道。
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