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1. 发明授权

US06839501B2 Video cassette recorder 有权
标题翻译：录像机
公开(公告)号：US06839501B2
公开(公告)日：2005-01-04
申请号：US09750731
申请日：2000-12-28
申请人： Tatsuya Kanatani , Hidehito Uemura
发明人： Tatsuya Kanatani , Hidehito Uemura
IPC分类号： H04N5/95 , G11B15/02 , H04N5/7826 , H04N5/783 , H04N5/923 , H04N9/79 , H04N9/87 , H04N5/91 , G11B15/12
CPC分类号： H04N5/783 , H04N5/78263 , H04N5/923 , H04N9/7917
摘要： There is provided a video cassette recorder comprising a delay element (1), a switching unit (2) for switching an output of the delay element (1), a logic unit (3) for controlling the switching unit (2), and a skew detection unit (4) for detecting a skew, wherein the delay element (1) shares a delay element used for vertical emphasis/vertical de-emphasis and for a comb line filter during a special replay. The video cassette recorder thus provides a fast-forwarding replay image, a rewinding replay image and a still image with improved skew distortion from a tape recorded in a long recording mode providing quintuple the recording time of a standard mode. This realizes an excellent special replay image at low cost without requiring an expensive circuit such as a TBC and the like.
摘要翻译：提供一种盒式录像机，包括延迟元件（1），用于切换延迟元件（1）的输出的切换单元（2），用于控制切换单元（2）的逻辑单元（3）用于检测偏斜的偏斜检测单元（4），其中延迟元件（1）在特殊重放期间共享用于垂直加重/垂直去加重的延迟元件和梳状线滤波器。因此，盒式磁带录像机提供快速重放图像，倒带重放图像和静止图像，其以长记录模式记录的带提供偏斜失真，提供标准模式的记录时间的五倍。这实现了低成本的优异的特殊重放图像，而不需要诸如TBC等的昂贵的电路。

2. 发明授权

US5625462A Panorama image producing method and apparatus which calculates a cumulative amount of motion of the image 失效
标题翻译：全景图像产生方法和装置，其计算图像的累积运动量
公开(公告)号：US5625462A
公开(公告)日：1997-04-29
申请号：US396173
申请日：1995-02-27
申请人： Masashi Ohta , Hiroshi Kobayashi , Tsuneo Sekiya , Toshimichi Hamada , Kyoko Fukuda , Koji Iijima
发明人： Masashi Ohta , Hiroshi Kobayashi , Tsuneo Sekiya , Toshimichi Hamada , Kyoko Fukuda , Koji Iijima
IPC分类号： H04N5/232 , H04N5/262 , H04N5/77 , H04N5/92 , H04N5/923 , H04N5/937 , H04N7/26 , H04N9/82 , H04N9/83 , H04N13/02 , H04N5/91
CPC分类号： H04N5/23238 , H04N19/23 , H04N5/232 , H04N5/772 , H04N5/9201 , H04N5/9208 , H04N5/937 , H04N9/83 , H04N5/262 , H04N5/923 , H04N9/8205 , Y10S358/906
摘要： A method and an apparatus by which a panorama image is produced with a high degree of accuracy from an image signal wherein an image signal produced by a CCD imaging element is recorded onto a video tape by way of a camera signal processing circuit, a recording signal processing circuit, a recording/reproduction amplifier and so forth. Meanwhile, a microcomputer calculates of a motion vector of an image from the output of a motion vector detector to which the image signal from the CCD imaging element is inputted, and controls a video subcode processor so that motion vector information may be recorded onto the video tape. The motion vector information is reproduced from the video tape together with the image signal, and a plurality of images are formed from the thus reproduced image signal and joined together in accordance with the motion vector information to produce a panorama image.
摘要翻译：一种通过图像信号以高精度产生全景图像的方法和装置，其中由CCD成像元件产生的图像信号通过相机信号处理电路记录在录像带上，记录信号处理电路，记录/再现放大器等。同时，微计算机从输入来自CCD成像元件的图像信号的运动矢量检测器的输出计算图像的运动矢量，并且控制视频子码处理器，使得运动矢量信息可以被记录在视频上胶带。运动矢量信息与图像信号一起从视频磁带再现，并且由这样再现的图像信号形成多个图像，并根据运动矢量信息连接在一起以产生全景图像。

3. 发明授权

US5579119A Recording signal control apparatus capable of optimizing recording conditions for magnetic recording medium 失效
标题翻译：能够优化磁记录介质的记录条件的记录信号控制装置
公开(公告)号：US5579119A
公开(公告)日：1996-11-26
申请号：US134005
申请日：1993-10-12
申请人： Yoshiaki Mimura
发明人： Yoshiaki Mimura
IPC分类号： G11B5/008 , G11B5/02 , G11B5/027 , G11B5/035 , G11B15/02 , G11B15/06 , G11B15/07 , G11B15/087 , G11B23/087 , G11B23/30 , H04N5/782 , H04N5/923 , H04N5/931 , H04N17/06 , H04N9/79
CPC分类号： G11B15/07 , G11B15/02 , G11B15/06 , G11B15/087 , G11B23/08714 , G11B5/00813 , G11B5/0086 , G11B5/02 , G11B5/035 , H04N17/06 , H04N5/782 , H04N5/923 , H04N5/931
摘要： A plurality of test signals of different frequencies are recorded on a magnetic recording medium while gradually increasing or decreasing recording current, and the variation of the level of each of the replayed test signals and the variation of the recording current are stored in a memory. From these variations, the amount of detail emphasis and/or the frequency characteristic of a recording equalizer and/or the recording current value for optimum recording of video signals are calculated and stored in another memory, and based on the thus stored optimum data for the magnetic recording medium displayed on display means, a detail emphasis circuit, a recording equalizer frequency correction circuit, and a recording current value setting circuit are controlled singly or in any combination thereof, thereby controlling one or other or any combination of three factors, i.e. the amount of detail emphasis that the detail emphasis circuit applies, the frequency characteristic of the recording equalizer, and the gain of a recording amplifier for FM signal recording.
摘要翻译：将多个不同频率的测试信号记录在磁记录介质上，同时逐渐增加或减少记录电流，并且每个重放测试信号的电平变化和记录电流的变化被存储在存储器中。根据这些变化，计算记录均衡器的细节强调量和/或频率特性和/或用于视频信号的最佳记录的记录电流值并存储在另一存储器中，并且基于如此存储的最佳数据在显示装置上显示的磁记录介质，细节加重电路，记录均衡器频率校正电路和记录电流值设置电路被单独或以其任何组合进行控制，由此控制三个因素之一或其他或任何组合，即详细强调电路应用的细节强调，记录均衡器的频率特性，以及用于FM信号记录的记录放大器的增益。

4. 发明授权

US5548409A Panorama image producing method and appartus 失效
标题翻译：全景图像制作方法和appartus
公开(公告)号：US5548409A
公开(公告)日：1996-08-20
申请号：US133377
申请日：1993-10-08
申请人： Masashi Ohta , Hiroshi Kobayashi , Tsuneo Sekiya , Toshimichi Hamada , Kyoko Fukuda , Koji Iijima
发明人： Masashi Ohta , Hiroshi Kobayashi , Tsuneo Sekiya , Toshimichi Hamada , Kyoko Fukuda , Koji Iijima
IPC分类号： H04N5/232 , H04N5/262 , H04N5/77 , H04N5/92 , H04N5/923 , H04N5/937 , H04N7/26 , H04N9/82 , H04N9/83 , H04N13/02 , H04N5/76
CPC分类号： H04N5/23238 , H04N19/23 , H04N5/232 , H04N5/772 , H04N5/9201 , H04N5/9208 , H04N5/937 , H04N9/83 , H04N5/262 , H04N5/923 , H04N9/8205 , Y10S358/906
摘要： A method and an apparatus by which a panorama image is produced with a high degree of accuracy from an image signal, wherein the image signal produced by a CCD imaging element is recorded onto a video tape by way of a camera signal processing circuit, a recording signal processing circuit, a recording/reproduction amplifier and so forth. Meanwhile, a microcomputer calculates of a motion vector of an image from the output of a motion vector detector to which the image signal from the CCD imaging element is inputted, and controls a video subcode processor so that motion vector information may be recorded onto the video tape. The motion vector information is reproduced from the video tape together with the image signal, and a plurality of images are formed from the thus reproduced image signal and joined together in accordance with the motion vector information to produce a panorama image.
摘要翻译：一种从图像信号以高准确度产生全景图像的方法和装置，其中由CCD成像元件产生的图像信号通过相机信号处理电路记录在录像带上，记录信号处理电路，记录/再现放大器等。同时，微计算机从输入来自CCD成像元件的图像信号的运动矢量检测器的输出计算图像的运动矢量，并且控制视频子码处理器，使得运动矢量信息可以被记录在视频上胶带。运动矢量信息与图像信号一起从视频磁带再现，并且由这样再现的图像信号形成多个图像，并根据运动矢量信息连接在一起以产生全景图像。

5. 发明授权

US5535246A Method of video noise reduction using non-linear pre/de-emphasis 失效
标题翻译：使用非线性预/去加重的视频降噪方法
公开(公告)号：US5535246A
公开(公告)日：1996-07-09
申请号：US972458
申请日：1993-02-03
申请人： Brian H. Beech
发明人： Brian H. Beech
IPC分类号： H03G7/00 , H03G9/00 , H03G9/02 , H04N5/923 , H04N7/00 , H04N7/045 , H04N5/21
CPC分类号： H04N5/923 , H03G9/025 , H04N7/045
摘要： A method of pre-emphasising a signal comprises the steps of a) receiving the signal as an input; b) applying the input signal to a processing system comprising a pair of parallel signal processing paths each comprising a non-linear phase filter and a non-linearity, and a further parallel path, wherein the filters in the pair of processing paths have equal but opposite phase responses and substantially equal magnitude responses, and wherein the outputs of the parallel processing paths are combined to produce the raw pre-emphasised signal; whereby the input signal is subjected to a non-linear dynamic range compression which is phase linear. Alternatively or additionally the input signal is split into at least three different frequency bands for non-linear processing. Preferably the pre-emphasised signal is pre-corrected using an iterative system. Complementary de-emphasis systems are also described, as well as pre-emphasis and de-emphasis apparatus.
摘要翻译： PCT No.PCT / GB92 / 01003 Sec。 371日期：1993年2月3日 102（e）日期1993年2月3日PCT提交1992年6月4日PCT公布。 WO92 / 22136 PCT公开号日期：1992年12月10日。一种预加重信号的方法包括以下步骤：a）接收信号作为输入; b）将输入信号应用于包括一对并行信号处理路径的处理系统，每个并行信号处理路径均包括非线性相位滤波器和非线性，并且还包括一个并行路径，其中，所述一对处理路径中的滤波器具有相等的但是反相位响应和基本相等的幅度响应，并且其中并行处理路径的输出被组合以产生原始预加重信号; 由此输入信号经受相位线性的非线性动态范围压缩。或者或另外，输入信号被分成至少三个不同的频带用于非线性处理。优选地，使用迭代系统预先校正预加重信号。还描述了互补去加重系统，以及预加重和去加重装置。

6. 发明授权

US5517322A Apparatus for recording and reproducing video signals with preemphasis and deemphasis processes 失效
标题翻译：用于以预加重和去加重过程记录和再现视频信号的装置
公开(公告)号：US5517322A
公开(公告)日：1996-05-14
申请号：US415031
申请日：1995-04-03
申请人： Ryo Hirayama
发明人： Ryo Hirayama
IPC分类号： G11B15/087 , G11B27/032 , G11B27/036 , G11B27/30 , H04N5/92 , H04N5/923 , H04N5/76
CPC分类号： G11B15/087 , G11B27/032 , G11B27/036 , G11B27/3054 , H04N5/9206 , H04N5/923 , G11B2220/90 , H04N5/9201
摘要： A video signal recording and reproducing apparatus comprises a magnetic tape (4) into which video signals are recorded, A preemphasis circuit (35) modifies the video signals prior to the recording into the magnetic tape (4), so as to increase magnitude of high-frequency components with respect to magnitude of low-frequency components on time base. A record start or end ID signal is generated in response to a record start or end signal in an ID signal recording circuit (36) which memorizes this ID signal into a corresponding portion of the magnetic tape (4). A mute circuit (46) resets the preemphasis circuit (35) in response to the record start or end signal. There is further provided a deemphasis circuit (37) for modifying the video signals after reproducing from the magnetic tape (4) in a complementary manner with respect to the preemphasis circuit (35), so as to decrease magnitude of high-frequency components with respect to magnitude of low-frequency components on time base. An ID signal detecting circuit (38) detects the record start or end ID signal from the magnetic tape (4) and generates an ID detecting signal. A mute circuit (49) resets the deemphasis circuit (37) in response to the ID detecting signal.
摘要翻译：视频信号记录和再现装置包括一个记录视频信号的磁带（4），一个预加重电路（35）将记录前的视频信号修改成磁带（4），从而增加高频率分量相对于低频分量在时基上的大小。响应于将该ID信号存储到磁带（4）的相应部分的ID信号记录电路（36）中的记录开始或结束信号，生成记录开始或结束ID信号。静音电路（46）响应于记录开始或结束信号复位预加重电路（35）。还提供了一种去加重电路（37），用于在相对于预加重电路（35）以互补的方式从磁带（4）再现之后修改视频信号，以便降低高频分量的幅度以时基为基础的低频分量的大小。 ID信号检测电路（38）从磁带（4）检测记录开始或结束ID信号，并生成ID检测信号。静音电路（49）响应于ID检测信号复位去加重电路（37）。

7. 发明授权

US5493341A Digital non-linear pre-emphasis/de-emphasis apparatus for video signals in a video signal recording and reproducing apparatus 失效
标题翻译：用于视频信号记录和再现装置中的视频信号的数字非线性预加重/去加重装置
公开(公告)号：US5493341A
公开(公告)日：1996-02-20
申请号：US218935
申请日：1994-03-29
申请人： Seok-hoon Nam
发明人： Seok-hoon Nam
IPC分类号： H03H17/02 , H04B1/62 , H04N5/16 , H04N5/922 , H04N5/923 , H04N5/93
CPC分类号： H04N5/923
摘要： A digital non-linear pre-emphasis/de-emphasis apparatus includes a first filter for multiplying an input signal by a first coefficient varying non-linearly according to the amplitude of the input signal, to thereby change the gain of the input signal, and a second filter for multiplying the gain-altered input signal by a second non-linear coefficient according to the gain value of the input signal to thereby change its passband with respect to the input signal. The apparatus changes the frequency response characteristic according to the input signal amplitude and obtains an emphasis amount. Furthermore, the apparatus selectively adds or subtracts the input signal and the emphasis amount according to a received record or reproduction mode signal, to thereby increase the S/N ratio of a VCR system and enhance the stability thereof.
摘要翻译：数字非线性预加重/去加重装置包括：第一滤波器，用于将输入信号乘以根据输入信号的振幅非线性变化的第一系数，从而改变输入信号的增益;以及第二滤波器，用于根据输入信号的增益值将增益改变的输入信号乘以第二非线性系数，从而相对于输入信号改变其通带。该装置根据输入信号幅度改变频率响应特性并获得强调量。此外，该装置根据接收的记录或再现模式信号选择性地增加或减少输入信号和强调量，从而增加VCR系统的S / N比并提高其稳定性。

8. 发明授权

US5491514A Coding apparatus, decoding apparatus, coding-decoding apparatus for video signals, and optical disks conforming thereto 失效
标题翻译：编码装置，解码装置，用于视频信号的编码解码装置和符合其的光盘
公开(公告)号：US5491514A
公开(公告)日：1996-02-13
申请号：US188140
申请日：1994-01-27
申请人： Hideki Fukuda , Masahiro Honjo , Hideaki Shibata
发明人： Hideki Fukuda , Masahiro Honjo , Hideaki Shibata
IPC分类号： G06T9/00 , H04N5/208 , H04N5/85 , H04N5/923 , H04N5/926 , H04N7/26
CPC分类号： H04N19/85 , H04N5/923 , H04N5/208 , H04N5/85 , H04N5/926
摘要： A coding and decoding apparatus is used to code and decode video signals. Input video signals are enhanced by an emphasis circuit having a nonlinear characteristic increasing an enhancement degree as amplitude of the input video signal decreases. The enhanced video signal, outputted from the emphasis circuit, is compression coded in an encoder and a code stream, representing a compression coded video signal, is outputted from the encoder. The code stream is transmitted to a decoder and the decoder decodes the code stream, outputting a decoded video signal. The decoded video signal is fed to a de-emphasis circuit having a nonlinear characteristic increasing a suppression degree as amplitude of the input signal decreases. As a result, low noise high quality video signals is reproduced from the de-emphasis circuit.
摘要翻译：编码和解码装置用于对视频信号进行编码和解码。当输入视频信号的幅度减小时，具有增加增强度的非线性特性的加重电路增强输入视频信号。从加重电路输出的增强视频信号在编码器中进行压缩编码，代码压缩编码视频信号的码流从编码器输出。码流被发送到解码器，并且解码器解码码流，输出解码的视频信号。解码的视频信号被馈送到具有增加抑制度的非线性特性的去加重电路，因为输入信号的幅度减小。结果，从去加重电路再现低噪声高质量视频信号。

9. 发明授权

US5438424A Video signal processing apparatus with image quality adjustment 失效
标题翻译：具有图像质量调整的视频信号处理装置
公开(公告)号：US5438424A
公开(公告)日：1995-08-01
申请号：US089401
申请日：1993-07-08
申请人： Yukihiko Ozaki , Eiji Moro
发明人： Yukihiko Ozaki , Eiji Moro
IPC分类号： H04N5/208 , H04N5/21 , H04N5/911 , H04N5/923 , H04N9/793 , H04N9/83 , H04N5/94
CPC分类号： H04N5/21 , H04N5/208 , H04N5/911 , H04N5/923 , H04N9/793 , H04N9/83
摘要： A video signal processor includes an image quality adjusting device or noise canceling device which responds to at least one noise information item containing a video signal and, preferably, the noise information item and a brightness information item contained in the video signal, to control quality of a displayed video image to provide a high quality video image.
摘要翻译：视频信号处理器包括：图像质量调整装置或噪声消除装置，其对包含视频信号的至少一个噪声信息项，以及优选噪声信息项和包含在视频信号中的亮度信息项进行响应，以控制质量显示的视频图像以提供高质量的视频图像。

10. 发明授权

US4802016A Video noise reduction system with signal emphasis preceding FM modulation upper-band luminance 失效
标题翻译：视频降噪系统具有信号强调，前调频调制高频带亮度
公开(公告)号：US4802016A
公开(公告)日：1989-01-31
申请号：US31551
申请日：1987-03-30
申请人： Shinji Kaneko
发明人： Shinji Kaneko
IPC分类号： G11B5/027 , G11B20/06 , H04N5/92 , H04N5/923 , H04N9/79 , H04N9/793 , H04N9/797 , H04N9/825 , H04N9/81
CPC分类号： H04N5/923 , H04N9/7908 , H04N9/7936 , H04N9/7973 , H04N9/825
摘要： A video noise reduction system for use in a video signal recording apparatus adapted to record red, blue and green primary color component video signals on a plurality of separate tracks of a magnetic recording medium. The component video signals are applied to a matrix circuit which produces a wide-band luminance signal. The video noise reduction system includes a band splitter circuit for splitting the wide-band luminance signal into an upper-band luminance signal and a lower-band luminance signal and an emphasis circuit for emphasizing the low level components of the upper-band luminance signal before the upper-band luminance signal is FM modulated. Since the emphasis circuit follows the band splitter circuit having a flat phase versus frequency characteristic, the video noise reduction circuit can reduce video noise without causing distortion of the frequency modulated video signal.
摘要翻译：一种用于视频信号记录装置的视频噪声降低系统，适用于在红色，蓝色和绿色原色分量视频信号上记录在磁记录介质的多个独立磁道上。分量视频信号被施加到产生宽带亮度信号的矩阵电路。视频噪声降低系统包括：分频器电路，用于将宽带亮度信号分解为上带亮度信号和低频带亮度信号;以及加强电路，用于强调上段亮度信号的低电平分量高频带亮度信号是FM调制的。由于加强电路遵循具有平坦相位对频率特性的分束器电路，所以视频噪声降低电路可以降低视频噪声而不会引起调频视频信号的失真。

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