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21. 发明授权

US4812920A Wide band video signal recording apparatus 失效
标题翻译：宽带视频信号记录装置
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。

22. 发明授权

US4785360A Recording and reproducing apparatus having tracking control responsive to erase head scanning 失效
标题翻译：具有响应于擦除头扫描的跟踪控制的记录和再现设备
公开(公告)号：US4785360A
公开(公告)日：1988-11-15
申请号：US914371
申请日：1986-10-02
申请人： Susumu Kozuki , Hiroyuki Takimoto , Mitsuhiro Otokawa , Hiroo Edakubo , Kenichi Nagasawa , Keiji Satoh
发明人： Susumu Kozuki , Hiroyuki Takimoto , Mitsuhiro Otokawa , Hiroo Edakubo , Kenichi Nagasawa , Keiji Satoh
IPC分类号： G11B15/467 , G11B21/10 , G11B15/087
CPC分类号： G11B15/4678 , G11B21/103
摘要： In an information signal recording and reproducing apparatus arranged to record in rotation pilot signals of a plurality of kinds having different frequencies, one in each of recording tracks along with an information signal on a recording medium and to reproduce the information signal from the recording medium, the relative positions of a rotary head which is reproducing the information signal and the recording medium are controlled by using the pilot signals reproduced by the rotary head and reference signals of a plurality of kinds which are of different frequencies corresponding respectively to the pilot signals of the plurality of kinds and are generated in rotation; and the generating sequence of these reference signals is changed by skipping a given number of reference signals according to signals reproduced by a rotary erase head during a reproducing operation.
摘要翻译：在信息信号记录和再现装置中，将具有不同频率的多种类型的导频信号旋转记录在信息记录和重放装置中，每个记录磁道中一个与记录介质上的信息信号一起，并从记录介质再现信息信号，通过使用由旋转磁头再现的导频信号和分别对应于分别对应的导频信号的频率的不同频率的参考信号来控制再现信息信号和记录介质的旋转磁头的相对位置多种，并旋转产生; 并且通过在再现操作期间根据由旋转擦除头重放的信号跳过给定数量的参考信号来改变这些参考信号的产生序列。

23. 发明授权

US4755878A Image information transmitting system 失效
标题翻译：图像信息传输系统
公开(公告)号：US4755878A
公开(公告)日：1988-07-05
申请号：US932773
申请日：1986-11-19
申请人： Tadayoshi Nakayama , Chikara Sato , Kenichi Nagasawa , Tomohiko Sasatani , Koji Takahashi , Susumu Kozuki , Katsuji Yoshimura
发明人： Tadayoshi Nakayama , Chikara Sato , Kenichi Nagasawa , Tomohiko Sasatani , Koji Takahashi , Susumu Kozuki , Katsuji Yoshimura
IPC分类号： H04N19/50 , H04B1/66 , H04N7/12 , H04N7/137
CPC分类号： H04N7/12
摘要： A system for transmitting an image information signal which continuously forms a temporally correlated group of image planes is arranged to divide each image plane portion of the image information signal into a plurality of blocks; to have a plurality of different information transmitting modes of transmitting the image information signal in different degrees of information density including a mode in which a present image plane portion of the image information signal is not transmitted; to form a transmitting information signal on the basis of applicable one of the plurality of the different information transmitting modes; to generate for each of the blocks a transmitting mode signal including information indicating use or nonuse of the information transmitting mode in which the present image plane portion of the image information signal is not transmitted; and to transmit the transmitting information signal and the transmitting mode signal in a multiplexing manner.
摘要翻译：用于发送连续地形成时间相关的图像平面组的图像信息信号的系统被布置为将图像信息信号的每个图像平面部分分成多个块; 具有以不同信息密度传输图像信息信号的多个不同信息发送模式，包括不发送图像信息信号的当前图像平面部分的模式; 基于所述多个所述不同信息发送模式中的适用的一个，形成发送信息信号; 为每个块生成包括指示不发送图像信息信号的当前图像平面部分的信息发送模式的使用或不使用的信息的发送模式信号; 并以复用方式发送发送信息信号和发送模式信号。

24. 发明授权

US4638390A Recording apparatus 失效
标题翻译：记录装置
公开(公告)号：US4638390A
公开(公告)日：1987-01-20
申请号：US804350
申请日：1985-12-03
申请人： Susumu Kozuki , Kenichi Nagasawa , Hiroo Edakubo , Junichi Sato , Nobutoshi Takayama
发明人： Susumu Kozuki , Kenichi Nagasawa , Hiroo Edakubo , Junichi Sato , Nobutoshi Takayama
IPC分类号： G11B15/18 , G11B15/467 , G11B5/56
CPC分类号： G11B15/4678 , G11B15/1875
摘要： A recording apparatus for recording an information signal on a record bearing medium comprises recording means for recording the information signal on the record bearing medium, instruction means for producing an instruction to stop a recording operation, stopping means for bringing the recording operation to a stop in response to the instruction of the instruction means, pilot signal generating means for generating pilot signals of frequencies differing from each other in a first generating pattern one after another, control means for controlling the pilot signal generating means to generate the pilot signals in a second generating pattern in response to the instruction of the instruction means, and superimposing means for superimposing upon the information signal the pilot signals generated by the pilot signal generating means.
摘要翻译：用于在记录承载介质上记录信息信号的记录装置包括用于将信息信号记录在记录载体介质上的记录装置，用于产生停止记录操作的指令的指令装置，用于使记录操作停止的停止装置响应于指令装置的指令，导频信号产生装置，用于产生一个接一个地以第一产生模式彼此不同的频率的导频信号;控制装置，用于控制导频信号产生装置在第二产生中产生导频信号响应于指令装置的指令的模式，以及叠加装置，用于将由导频信号产生装置产生的导频信号叠加在信息信号上。

25. 发明授权

US4956724A Multi-channel recording and/or reproducing apparatus capable of simultaneously recording and/or reproducing of two channels 失效
标题翻译：能够同时记录和/或再现两个通道的多通道记录和/或再现装置
公开(公告)号：US4956724A
公开(公告)日：1990-09-11
申请号：US256104
申请日：1988-10-07
申请人： Kenichi Nagasawa , Toshiyuki Masui
发明人： Kenichi Nagasawa , Toshiyuki Masui
IPC分类号： G11B5/008 , G11B5/02 , G11B5/027 , G11B5/09 , G11B5/592 , G11B15/087 , G11B20/00
CPC分类号： G11B5/0086 , G11B15/087 , G11B5/5922
摘要： An information signal recording and/or reproducing apparatus, of the kind for recording or reproducing information signals on or from a tape-shaped record bearing medium which has a plurality of areas extending in parallel with each other in the longitudinal direction of the medium, is arranged to record or reproduce a first information signal with a first rotary head which traces the medium in such a way as to traverse each of the plurality of areas while rotating through an angle of .theta. degrees, and to record or reproduce a second information signal with a second rotary head which traces the medium by rotating at a phase differing by of n.theta. degrees, wherein "n" is an integer other than 0, from the rotation phase of the first rotary head.
摘要翻译：一种信息信号记录和/或再现装置，用于在具有在介质的纵向方向上彼此平行延伸的多个区域的带状记录载体介质上记录或再现信息信号，被布置成用第一旋转头记录或再现第一信息信号，所述第一旋转头以这样的方式跟踪介质，以便在旋转θ度的同时横穿多个区域中的每一个，并且记录或再现第二信息信号，第二旋转磁头，其通过以相差为nθ度的相位旋转来跟踪介质，其中从第一旋转磁头的旋转相位“n”是除了0以外的整数。

26. 发明授权

US4878134A Information signal recording apparatus for aligning helical slant tracks 失效
标题翻译：用于对准螺旋倾斜轨道的信息信号记录装置
公开(公告)号：US4878134A
公开(公告)日：1989-10-31
申请号：US855174
申请日：1986-04-22
申请人： Toshiyuki Masui , Motokazu Kashida , Koji Takahashi , Kenichi Nagasawa
发明人： Toshiyuki Masui , Motokazu Kashida , Koji Takahashi , Kenichi Nagasawa
IPC分类号： G11B15/467
CPC分类号： G11B15/4678
摘要： An apparatus for recording an information signal with rotary heads in each of a plurality of areas extending in the longitudinal direction of a tape-shaped recording medium is arranged to reproduce with the rotary heads a signal already recorded in a first area among the plurality of areas; and to record the information signal in the second of the areas while performing tracking control over the rotary heads by using the reproduced signal obtained from the first area.
摘要翻译：用于在沿带状记录介质的纵向方向延伸的多个区域中的每个区域中记录具有旋转磁头的信息信号的装置被布置成利用旋转磁头再现已经记录在多个区域中的第一区域中的信号 ; 并且通过使用从第一区域获得的再现信号在第二区域中记录信息信号，同时对旋转磁头进行跟踪控制。

27. 发明授权

US5198940A Image signal recording system 失效
标题翻译：图像信号记录系统
公开(公告)号：US5198940A
公开(公告)日：1993-03-30
申请号：US798035
申请日：1991-11-20
申请人： Kenichi Nagasawa , Tadayoshi Nakayama , Koji Takahashi , Masahiro Takei
发明人： Kenichi Nagasawa , Tadayoshi Nakayama , Koji Takahashi , Masahiro Takei
IPC分类号： H04N7/26 , H04N7/46 , H04N9/797 , H04N9/81 , H04N9/82
CPC分类号： H04N9/81 , H04N19/59 , H04N9/797 , H04N19/30 , H04N9/8205 , H04N9/8233
摘要： An image signal recording system for recording an image signal corresponding to an original picture comprised of m picture elements (m being an integer, m.gtoreq.4) on a recording medium, in which the original picture is divided into m/n picture element blocks, each comprised of n picture elements (n being a measure, 2.ltoreq.n.ltoreq.m); and first image information signals are formed by sampling a first picture element out of n picture elements constituting each picture element block on the basis of a first sampling mode, a second image information signal is formed by sampling a second picture element which is different from the first picture element on the basis of second sampling mode and the first image information signal and the second image information signal are recorded on a track having first and second areas which form continuous areas on the recording medium, respectively, in such manner that the first image information signal is recorded on the first area and the second image information signal is recorded on the second area.
摘要翻译：一种图像信号记录系统，用于在原始图像被分割成m / n像素的记录介质上记录与由m个图像元素（m为整数，m> = 4）组成的原始图像相对应的图像信号块，每个由n个图像元素组成（n是度量，2≤n≤m）; 并且第一图像信息信号通过基于第一采样模式对构成每个图像元素块的n个图像元素中的第一图像元素进行采样而形成，第二图像信息信号通过对与第二图像信号不同的第二图像元素进行采样来形成基于第二采样模式的第一图像元素和第一图像信息信号和第二图像信息信号被分别记录在具有在记录介质上形成连续区域的第一和第二区域的轨道上，使得第一图像信息信号被记录在第一区域上，第二图像信息信号被记录在第二区域上。

28. 发明授权

US4924326A Signal reproducing apparatus 失效
标题翻译：信号再生装置
公开(公告)号：US4924326A
公开(公告)日：1990-05-08
申请号：US198706
申请日：1988-05-17
申请人： Hiroyuki Takimoto , Kenichi Nagasawa , Mikihiro Fujimoto , Hiroyuki Kobayashi , Masahiro Takei
发明人： Hiroyuki Takimoto , Kenichi Nagasawa , Mikihiro Fujimoto , Hiroyuki Kobayashi , Masahiro Takei
IPC分类号： G11B15/18 , G11B15/467 , H04N5/783
CPC分类号： G11B15/1875 , G11B15/4671 , H04N5/783
摘要： An apparatus for reproducing recorded signals by periodically tracing with reproducing heads many recording tracks formed on a record bearing medium, is arranged to form from the output of the reproducing head a first periodic signal relative to a tracking error between the head and one of many recording tracks; and to control the movement of the record bearing medium relative to the reproducing head on the basis of a phase difference between the first periodic signal and a second periodic signal which is related to the tracing period of the reproducing head.
摘要翻译：一种用于通过用再现头周期性地跟踪形成在记录承载介质上的多个记录轨道来再现记录信号的装置被布置成从再现头的输出形成第一周期信号，相对于头与许多记录之一之间的跟踪误差轨道并且基于与第一周期信号和与再现头的跟踪周期相关的第二周期信号之间的相位差来控制记录承载介质相对于再现头的移动。

29. 发明授权

US5535064A Information signal recording system using different compressing methods to obtain signals for recording along with a corresponding signal indicating the method of compression 失效
标题翻译：信息信号记录系统使用不同的压缩方法来获得用于记录的信号以及指示压缩方法的相应信号
公开(公告)号：US5535064A
公开(公告)日：1996-07-09
申请号：US395297
申请日：1995-02-27
申请人： Kenichi Nagasawa , Tadayoshi Nakayama , Koji Takahashi , Masahiro Takei
发明人： Kenichi Nagasawa , Tadayoshi Nakayama , Koji Takahashi , Masahiro Takei
IPC分类号： H04N7/26 , H04N7/46 , H04N9/797 , H04N9/804 , H04N9/81 , H04N9/82 , H04N5/78
CPC分类号： H04N9/81 , H04N19/59 , H04N9/797 , H04N9/8042 , H04N19/30 , H04N9/8205 , H04N9/8233
摘要： An information signal recording system arranged to divide original information signals into signal groups, each bearing a predetermined amount of information, to have a plurality of compressing modes for different information compressing ratios and to compress the information signals of each group in one of the different compressing ratios in recording these signals on a tape-shaped magnetic recording medium comprises first compressed information signal forming assembly which operates on all these groups to form and produce a first compressed information signal consisting of only the information signals of a specific part of each of these groups; second compressed information signal forming assembly which operates on some of these groups to form and produce a second compressed information signal consisting of information signals of each groups excluding the information signals of the specific part; a magnetic head which records signals on the tape-shaped magnetic recording medium by tracing the medium in a direction of crossing the longitudinal direction of the medium; and supply assembly for supplying the magnetic head with the first and second compressed information signals by switching them from one over to the other at every half of the medium tracing period of the magnetic head.
摘要翻译：一种信息信号记录系统，被布置成将原始信息信号分成信号组，每个信号组具有预定量的信息，以具有用于不同信息压缩比的多个压缩模式，并且在不同压缩之一中压缩每个组的信息信号在带状磁记录介质上记录这些信号的比率包括第一压缩信息信号形成组件，其对所有这些组进行操作以形成并产生仅由这些组中的每个组的特定部分的信息信号组成的第一压缩信息信号 ; 第二压缩信息信号形成组件，其对这些组中的一些组进行操作以形成并产生除了特定部分的信息信号之外的每个组的信息信号组成的第二压缩信息信号; 磁头，其通过在与介质的纵向交叉的方向上跟踪介质来在带状磁记录介质上记录信号; 以及供应组件，用于通过在磁头的介质追踪周期的每半个将它们从一个切换到另一个来向磁头提供第一和第二压缩信息信号。

30. 发明授权

US5148331A Rotary head type recording and reproducing apparatus for information and additional codes 失效
标题翻译：旋转头式记录和再现装置，用于信息和附加代码
公开(公告)号：US5148331A
公开(公告)日：1992-09-15
申请号：US600133
申请日：1990-10-19
申请人： Motokazu Kashida , Masahiro Takei , Kouji Takahashi , Kenichi Nagasawa
发明人： Motokazu Kashida , Masahiro Takei , Kouji Takahashi , Kenichi Nagasawa
IPC分类号： G11B15/087 , G11B15/18 , G11B15/467
CPC分类号： G11B15/087 , G11B15/1875 , G11B15/4678
摘要： A rotary head type recording and reproducing apparatus of the kind recording information codes on a tape-shaped recording medium by forming many parallel recording tracks and at the same time an additional code consisting of one byte at a predetermined position in each of the recording tracks and reproducing, by means of rotary heads, the signals from the medium, the apparatus is arranged to perform the reproduction as follows; A tracking error signal is formed by using signals reproduced from the rotary head. The tracking error signal is sampled at such a timing that enables the rotary head to reproduce the additional code. The position of the recording medium relative to the rotary head is controlled on the basis of the tracking error signal thus obtained.
摘要翻译：通过形成多个并行记录磁道，并且同时在每个记录磁道中的预定位置处由一个字节组成的附加代码，将记录信息类型的旋转磁头型记录和再现装置编码在带状记录介质上，以及通过旋转头再现来自介质的信号，该装置被布置为如下执行再现：通过使用从旋转头重放的信号形成跟踪误差信号。跟踪误差信号在允许旋转头再现附加代码的定时被采样。基于如此获得的跟踪误差信号来控制记录介质相对于旋转头的位置。

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