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1. 发明授权

US4914527A Recording and reproducing digital video and audio signals together with a time code signal which is within user control words of the audio data 失效
标题翻译：记录和再现数字视频和音频信号以及在音频数据的用户控制字内的时间码信号
公开(公告)号：US4914527A
公开(公告)日：1990-04-03
申请号：US328523
申请日：1989-03-24
申请人： Toshiya Asai , Kaichi Tatsuzawa , Hiroki Kotani
发明人： Toshiya Asai , Kaichi Tatsuzawa , Hiroki Kotani
IPC分类号： G11B20/18 , G11B27/30 , G11B27/32 , H04N5/782 , H04N5/92 , H04N5/926 , H04N5/945 , H04N9/802
CPC分类号： H04N9/802 , G11B20/1803 , G11B20/1809 , G11B27/3036 , H04N5/782 , H04N5/92 , H04N5/926 , H04N5/9268 , H04N5/945 , G11B2220/90 , G11B27/323
摘要： In recording a time code signal together with digital video and audio signals, at least one channel of a digital audio signal is supplied to rotary heads scanning successive slant tracks on a tape for recording in intermediate sections of the slant tracks, a digital video signal is supplied to the same heads for recording in other sections of the slant tracks situated before and after the intermediate sections and being relatively longer than the latter, and the time code signal is also supplied to the rotary heads for recording in the intermediate sections with the same time codes being represented by the time code signal recorded in the intermediate sections of a successive plurality of the slant tracks which contain the digital video signal for a respective frame.
摘要翻译：在将时间码信号与数字视频和音频信号一起记录时，数字音频信号的至少一个通道被提供给在磁带上扫描连续倾斜磁道的旋转磁头，用于在倾斜磁道的中间部分中记录数字视频信号提供给相同的头部，用于在位于中间部分之前和之后的倾斜轨道的其它部分中记录并且相对较长的时间码，并且时间码信号也被提供给用于在具有相同的中间部分的中间部分中记录的旋转头时间码由记录在包含相应帧的数字视频信号的连续多个倾斜轨道的中间部分中的时间码信号表示。

2. 发明授权

US4742519A Apparatus for decoding error correcting code 失效
标题翻译：用于解码纠错码的装置
公开(公告)号：US4742519A
公开(公告)日：1988-05-03
申请号：US865126
申请日：1986-05-20
申请人： Takao Abe , Kaichi Tatsuzawa , Hisanori Kominami , Tetsuro Suma , Tetsuo Ogawa , Hiroki Kotani
发明人： Takao Abe , Kaichi Tatsuzawa , Hisanori Kominami , Tetsuro Suma , Tetsuo Ogawa , Hiroki Kotani
IPC分类号： G06F11/10 , G11B20/18 , H03M13/00 , H03M13/29 , H04N5/93 , H04N5/945
CPC分类号： H04N5/93 , G11B20/1809 , H03M13/29 , H04N5/945
摘要： Apparatus for decoding an error detecting or correcting code constructed from digital information data and redundant data for detecting or correcting errors in the digital information data, the digital information data and redundant data being reproduced from a record medium by a playback apparatus that operates in a normal speed mode and fast and slow speed modes, includes a first decoder for decoding the error detecting or correcting code and for generating flag data indicating error conditions of the digital information data, a first memory for storing the digital information data subjected to the decoding in the first decoder, and a second memory for storing flag data. A controller is provided with a mode signal indicating a normal playback mode or a fast playback mode of the record medium playback apparatus for controlling the first and second memories so as to read out the digital information data and flag data, respectively, when the mode signal indicates the normal reproducing mode and so as to read out the digital information data without error and the flag data, respectively, when the mode signal indicates the fast reproducing mode.
摘要翻译：用于解码由数字信息数据构成的错误检测或校正码的装置和用于检测或校正数字信息数据中的错误的冗余数据，数字信息数据和从正常操作的重放装置从记录介质再现的冗余数据速度模式和快速和慢速模式包括用于解码错误检测或纠正码并产生指示数字信息数据的错误状况的标志数据的第一解码器，用于存储经过解码的数字信息数据的第一存储器第一解码器和用于存储标志数据的第二存储器。控制器具有指示用于控制第一和第二存储器的记录介质重放装置的正常重放模式或快速重放模式的模式信号，以便在模式信号时分别读出数字信息数据和标志数据表示正常再现模式，并且当模式信号表示快速再现模式时，分别读出无差错的数字信息数据和标志数据。

3. 发明授权

US5450139A Apparatus for transmitting video signals comprising a memory backup device 失效
标题翻译：用于发送包括存储器备份设备的视频信号的装置
公开(公告)号：US5450139A
公开(公告)日：1995-09-12
申请号：US168230
申请日：1993-12-17
申请人： Hideo Haraguchi , Kaichi Tatsuzawa , Hiroyuki Yamauchi
发明人： Hideo Haraguchi , Kaichi Tatsuzawa , Hiroyuki Yamauchi
IPC分类号： H04N5/268 , H04N5/222
CPC分类号： H04N5/222 , H04H60/06 , H04H60/27
摘要： Apparatus for transmitting video signals includes a primary storage device having a plurality of storage units for storing and reading video signals selectively supplied thereto by a coupling circuit. An alternate storage device functions as a backup and receives and stores all of the video signals that are supplied to the primary storage device; and reads out therefrom the video signals which are in the process of being read from the primary storage device in the event a failure is detected in the primary storage device.
摘要翻译：用于发送视频信号的设备包括具有多个存储单元的主存储设备，用于存储和读取由耦合电路选择性地提供给其的视频信号。备用存储设备用作备份，并接收并存储提供给主存储设备的所有视频信号; 并且在主存储装置中检测到故障的情况下读出正在从主存储装置读取的视频信号。

4. 发明授权

US4751589A Method and apparatus for reproducing recorded video signal 失效
标题翻译：用于再现记录的视频信号的方法和装置
公开(公告)号：US4751589A
公开(公告)日：1988-06-14
申请号：US727381
申请日：1985-04-25
申请人： Hisanori Kominami , Kaichi Tatsuzawa
发明人： Hisanori Kominami , Kaichi Tatsuzawa
IPC分类号： G11B20/10 , H04N5/92 , H04N5/926 , H04N5/937 , H04N5/78
CPC分类号： H04N5/926 , H04N5/92 , H04N5/937
摘要： A recorded video signal reproduction in digital process involves switching among a plurality of field memories into which to store image data for one video field picked up by a rotary head and from which to retrieve image data for reproduction, each time the scanning for one record area is completed. The method also includes a process for detecting reversal of a tape drive direction and disabling the switching among field memory for a given period so as to hold the video image reproduced on a video monitor unchanged.
摘要翻译：在数字处理中记录的视频信号再现涉及在多个场存储器之间进行切换，其中存储由旋转磁头拾取的一个视频场的图像数据，并从中检索用于再现的图像数据，每次扫描一个记录区域完成了。该方法还包括用于检测磁带驱动方向的反转并且在给定时间段内禁止在场存储器之间的切换以便保持在视频监视器上再现的视频图像不变的处理。

5. 发明授权

US5771216A Photomagnetic recording device and photomagnetic reproducing device 失效
标题翻译：光磁记录装置和光磁再现装置
公开(公告)号：US5771216A
公开(公告)日：1998-06-23
申请号：US835202
申请日：1997-04-07
申请人： Kaichi Tatsuzawa , Shosuke Tanaka , Shigeaki Koike
发明人： Kaichi Tatsuzawa , Shosuke Tanaka , Shigeaki Koike
IPC分类号： G11B7/0045 , G11B11/105 , G11B7/00
CPC分类号： G11B11/1053 , G11B11/10528 , G11B11/10595 , G11B11/10506 , G11B7/0045
摘要： In photomagnetic recording device and photomagnetic reproducing device where a record light beam is irradiated to a photomagnetic record medium in response to a record light thereby a pit is formed on the photomagnetic record medium, and a reproducing light beam is irradiated to the pit on the photomagnetic record medium thereby the record information is reproduced, since the record light beam is emitted intermittently in the light irradiation period that the pit is to be formed on the photomagnetic record medium among the record signal, the pit of nearly circular shape can be formed on the photomagnetic record medium, thus the information can be recorded on the photomagnetic record medium at high accuracy.
摘要翻译：在光磁记录装置和光磁再现装置中，响应于记录光将记录光束照射到光磁记录介质，从而在光磁记录介质上形成凹坑，并且再现光束照射到光磁场上的凹坑记录介质，从而记录信息被再现，因为记录光束是在记录信号中在光磁记录介质上形成凹坑的光照射周期间歇地发射的，所以可以形成几乎圆形形状的凹坑光磁记录介质，因此可以高精度地将信息记录在光磁记录介质上。

6. 发明授权

US5640379A Photomagnetic recording device and photomagnetic reproducing device 失效
标题翻译：光磁记录装置和光磁再现装置
公开(公告)号：US5640379A
公开(公告)日：1997-06-17
申请号：US646222
申请日：1991-01-28
申请人： Kaichi Tatsuzawa , Shosuke Tanaka , Shigeaki Koike
发明人： Kaichi Tatsuzawa , Shosuke Tanaka , Shigeaki Koike
IPC分类号： G11B7/0045 , G11B11/105 , G11B7/00
CPC分类号： G11B11/1053 , G11B11/10528 , G11B11/10595 , G11B11/10506 , G11B7/0045
摘要： In a photomagnetic recording device where a record light beam irradiates a photomagnetic record medium to form a pit on the photomagnetic record medium, and a reproducing light beam irradiates the pit to reproduce the record information, the record light beam is pulsed intermittently at least at the beginning of the irradiation period so that a pit of substantially circular shape is formed on the photomagnetic record medium, whereby information is recorded with high accuracy.
摘要翻译：在记录光束照射光磁记录介质以在光磁记录介质上形成凹坑的光磁记录装置中，并且再现光束照射凹坑以再现记录信息，记录光束至少在照射周期的开始，使得在光磁记录介质上形成大致圆形的凹坑，从而以高精度记录信息。

7. 发明授权

US06697100B2 SOLID-PICTORIAL VIDEO SIGNAL GENERATING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL TRANSMITTING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL RECEIVING APPARATUS AND SOLID-PICTORIAL VIDEO SIGNAL TRANSMISSION SWITCHING APPARATUS 失效
标题翻译：固体摄像机视频信号发生装置，固体摄像机视频信号发送装置，固体摄像机视频信号接收装置和固体摄像机视频信号传输装置
公开(公告)号：US06697100B2
公开(公告)日：2004-02-24
申请号：US10190999
申请日：2002-07-08
申请人： Kaichi Tatsuzawa
发明人： Kaichi Tatsuzawa
IPC分类号： H04N718
CPC分类号： H04N19/597 , H04N13/161 , H04N13/167 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/296 , H04N19/61 , H04N2013/0085
摘要： Left and right video cameras 18L and 18R are disposed on both sides of a front video camera 18M. Solid-pictorial video signals used upon signal transmission are generated by using video signals outputted from the left and right video cameras with respect to a video signal outputted from the front video camera. The left and right video cameras make use of simplified video cameras and are cameras with no zoom functions or the like. The video signals obtained from the left and right video cameras are used as signals for forming a solid picture. In the present example, only solid information with respect to a main picture is transmitted as a video signal to reduce the amount of transmission. Since a motion-compensated DCT encode process using the front video signal as a reference picture is performed to extract only the video signal having the solid information from the left and right video signals. Since the simplified video cameras can be utilized, solid-pictorial video signals can be generated at low cost.
摘要翻译：左右摄像机18L和18R设置在前摄像机18M的两侧。信号传输时使用的固体图像视频信号通过使用从左摄像机和右摄像机输出的视频信号相对于从前摄像机输出的视频信号而产生。左右摄像机使用简化的摄像机，并且不具有缩放功能等的相机。从左右摄像机获得的视频信号用作形成固体图像的信号。在本示例中，仅将关于主图像的固体信息作为视频信号被发送以减少传输量。由于执行使用前视频信号作为参考图像的运动补偿DCT编码处理，以从左视频信号和右视频信号仅提取具有固体信息的视频信号。由于可以利用简化的摄像机，可以以低成本生成固体图像视频信号。

8. 发明授权

US06441844B1 SOLID-PICTORIAL VIDEO SIGNAL GENERATING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL TRANSMITTING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL RECEIVING APPARATUS AND SOLID-PICTORIAL VIDEO SIGNAL TRANSMISSION SWITCHING APPARATUS 失效
标题翻译：固体摄像机视频信号发生装置，固体摄像机视频信号发送装置，固体摄像机视频信号接收装置和固体摄像机视频信号传输装置
公开(公告)号：US06441844B1
公开(公告)日：2002-08-27
申请号：US09296366
申请日：1999-04-22
申请人： Kaichi Tatsuzawa
发明人： Kaichi Tatsuzawa
IPC分类号： H04N718
CPC分类号： H04N19/597 , H04N13/161 , H04N13/167 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/296 , H04N19/61 , H04N2013/0085
摘要： Left and right video cameras 18L and 18R are disposed on both sides of a front video camera 18M. Solid-pictorial video signals used upon signal transmission are generated by using video signals outputted from the left and right video cameras with respect to a video signal outputted from the front video camera. The left and right video cameras make use of simplified video cameras and are cameras with no zoom functions or the like. The video signals obtained from the left and right video cameras are used as signals for forming a solid picture. In the present example, only solid information with respect to a main picture is transmitted as a video signal to reduce the amount of transmission. A motion-compensated DCT encode process using the front video signal as a reference picture is performed to extract only the video signal having the solid information from the left and right video signals. Since the simplified video cameras can be utilized, solid-pictorial video signals can be generated at low cost.
摘要翻译：左右摄像机18L和18R设置在前摄像机18M的两侧。信号传输时使用的固体图像视频信号通过使用从左摄像机和右摄像机输出的视频信号相对于从前摄像机输出的视频信号而产生。左右摄像机使用简化的摄像机，并且不具有缩放功能等的相机。从左右摄像机获得的视频信号用作形成固体图像的信号。在本示例中，仅将关于主图像的固体信息作为视频信号被发送以减少传输量。执行使用前视频信号作为参考图像的运动补偿DCT编码处理，以仅提取来自左视频信号和右视频信号的具有固体信息的视频信号。由于可以利用简化的摄像机，可以以低成本生成固体图像视频信号。

9. 发明授权

US5142537A Video signal processing circuit 失效
标题翻译：视频信号处理电路
公开(公告)号：US5142537A
公开(公告)日：1992-08-25
申请号：US474541
申请日：1990-02-02
申请人： Michael A. Kutner , Kaichi Tatsuzawa
发明人： Michael A. Kutner , Kaichi Tatsuzawa
IPC分类号： H04N5/92 , G11B20/18 , H04N5/94 , H04N5/945
CPC分类号： H04N5/945 , G11B20/1809 , G11B20/1876
摘要： A video signal processing circuit carries out error correction, error concealment and weighted mean processing sequentially on video signals reproduced by a video tape recorder. One and two dimensional error concealment modes are provided respectively utilizing sample data on the same line as erroneous sample data to be concealed, and sample data in peripheral and/or time displaced relation to the erroneous sample data. One of a plurality of error concealment modes is selected depending upon the state of error flags for the peripheral and/or time displaced sample data. In certain advantageous embodiments, original sample data for which a gray code has been set, is compared with error concealed data and the original sample data is output in place of the error concealed data where such comparison indicates that the difference between the two is within a predetermined acceptance threshold.Weighted mean sample data processing provides the capability of producing a first field of a video signal from a second field thereof by summing sample data from a plurality of lines of the second field to form the signals of the first field. In certain advantageous embodiments, the signals of the second field are multiplied by selectably variable coefficients, the selection of which is based on a detection that at least one of the line signals of the second field is outside an effective image information portion thereof.

10. 发明授权

US4802032A Servo for VTR drum motor with external reference signal phase modulation 失效
标题翻译：伺服用于具有外部参考信号相位调制的VTR鼓式电机
公开(公告)号：US4802032A
公开(公告)日：1989-01-31
申请号：US63800
申请日：1987-06-23
申请人： Kaichi Tatsuzawa , Takao Abe , Tetsuo Ogawa
发明人： Kaichi Tatsuzawa , Takao Abe , Tetsuo Ogawa
IPC分类号： G11B5/588 , G11B15/467 , G11B15/473 , G11B33/10 , G11B5/02
CPC分类号： G11B33/10 , G11B15/4672 , G11B15/4733
摘要： A servo circuit is provided for use with a reproducing apparatus wherein an information signal is reproduced from an elongated slant track formed on a tape which is wrapped on the periphery of a guide drum having a rotary head. The servo circuit includes a circuit for detecting an intermediate point of the length of the slant track and generating a timing signal at the detection of the intermediate point and a circuit for comparing the timing signal with a reference pulse to generate a control signal. A relative position of the slant track to the rotary head is controlled in accordance with the control signal.
摘要翻译：提供了一种用于再现装置的伺服电路，其中从形成在缠绕在具有旋转头的导向鼓的周边上的带上的细长倾斜轨道再现信息信号。伺服电路包括用于检测倾斜磁道的长度的中间点并在检测中间点时产生定时信号的电路和用于将定时信号与参考脉冲进行比较以产生控制信号的电路。根据控制信号控制倾斜轨道相对于旋转头的相对位置。

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