公开(公告)号：US5130863A

公开(公告)日：1992-07-14

申请号：US329812

申请日：1989-03-28

申请人： Shinichi Yamashita ,  Kenichi Nagasawa ,  Tomohiko Sasatani ,  Toshihiro Yagisawa

发明人： Shinichi Yamashita ,  Kenichi Nagasawa ,  Tomohiko Sasatani ,  Toshihiro Yagisawa

IPC分类号： G11B20/10 ,  G11B20/18 ,  G11B27/00 ,  G11B27/30 ,  G11B27/32 ,  H04N9/797

CPC分类号： H04N9/7973 ,  G11B20/10527 ,  G11B20/1809 ,  G11B27/005 ,  G11B27/30 ,  G11B27/3063 ,  G11B27/324

摘要： In a digital signal recording apparatus it is possible to input plural kinds of digital information signals having different bit rates from one another. Recording is performed for each data block which includes a predetermined amount of data which includes main data corresponding to the digital information. The ratio of the main data within the data block is switched in accordance with each kind of digital information signal.

摘要翻译： 在数字信号记录装置中，可以输入具有不同比特率的多种数字信息信号。 对包括包含与数字信息对应的主数据的预定量的数据的每个数据块进行记录。 根据每种数字信息信号切换数据块内的主数据的比率。

公开(公告)号：US5101274A

公开(公告)日：1992-03-31

申请号：US645260

申请日：1991-01-24

申请人： Katsuji Yoshimura ,  Kenichi Nagasawa ,  Motokazu Kashida ,  Akihiro Shikakura

发明人： Katsuji Yoshimura ,  Kenichi Nagasawa ,  Motokazu Kashida ,  Akihiro Shikakura

IPC分类号： G11B27/30 ,  H04N5/7826 ,  H04N9/804 ,  H04N9/806 ,  H04N9/808 ,  H04N9/82 ,  H04N9/888 ,  H04N21/2368 ,  H04N21/433 ,  H04N21/434

CPC分类号： H04N9/888 ,  G11B27/3036 ,  G11B27/3063 ,  H04N21/2368 ,  H04N21/4334 ,  H04N21/4341 ,  H04N5/78263 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8066 ,  H04N9/808 ,  H04N9/8081 ,  H04N9/8088 ,  H04N9/8216

摘要： A digital signal recording apparatus includes first circuitry for forming digital video data, and second circuitry for forming digital audio data. Third circuitry is provided for forming (a) video synchronizing blocks each of which comprises a predetermined number of digital video data and synchronizing data, and (b) audio synchronizing blocks each of which comprises a predetermined number of digital audio data and synchronizing data. Recording circuitry is provided for recording the video synchronizing blocks and the audio synchronizing blocks in tracks formed on a recording medium, the tracks being generally aligned in the direction of travel in the recording medium. The recording circuitry includes time-division multiplexing circuitry for time-division multiplexing a predetermined number of video synchronizing blocks and a predetermined number of audio synchronizing blocks to produce a data sequence for each of the tracks. The time-divison multiplexing circuitry produces different data sequences for neighboring tracks.

摘要翻译： 数字信号记录装置包括用于形成数字视频数据的第一电路和用于形成数字音频数据的第二电路。 提供第三电路用于形成（a）视频同步块，每个块包括预定数量的数字视频数据和同步数据，以及（b）每个音频同步块包括预定数量的数字音频数据和同步数据。 提供了记录电路，用于将视频同步块和音频同步块记录在形成在记录介质上的轨道中，轨迹通常在记录介质中沿行进方向对齐。 记录电路包括用于对预定数量的视频同步块进行时分多路复用的时分复用电路和预定数量的音频同步块，以产生每个磁道的数据序列。 时分复用电路为相邻磁道产生不同的数据序列。

公开(公告)号：US4975866A

公开(公告)日：1990-12-04

申请号：US260571

申请日：1988-10-21

申请人： Akio Aoki ,  Kenichi Nagasawa

发明人： Akio Aoki ,  Kenichi Nagasawa

IPC分类号： H04N19/50 ,  H04N1/41 ,  H04N5/945 ,  H04N19/00 ,  H04N19/132 ,  H04N19/134 ,  H04N19/136 ,  H04N19/166 ,  H04N19/182 ,  H04N19/186 ,  H04N19/42 ,  H04N19/423 ,  H04N19/59 ,  H04N19/65 ,  H04N19/89 ,  H04N19/895

CPC分类号： H04N5/945 ,  H04N19/89 ,  H04N19/895

摘要： An interpolation device arranged to input (a) a serial data sequence including a number of sampling data and (b) a serial flag sequence including flag data indicative of the validities of the number of sampling data, and arranged to output an output data sequence by replacing a part of the number of sampling data with interpolation data, includes a first juxtaposing circuit for receiving the input data sequence and the output data sequence and for outputting in parallel objective sampling data to be interpolated and a plurality of sampling data having a high correlation with the objective sampling data. An interpolation circuit is provided for outputting the output data sequence by selectively using the objective sampling data and the plurality of sampling data which are output from the first juxtaposing circuit. A second juxtaposing circuit is provided for receiving the flag sequence and for outputting in parallel a plurality of flag data indicative of validities of a part of the plurality of sampling data. A control circuit is provided for receiving the plurality of flag data which are output from the second juxtaposing circuit and for outputting control data to control the interpolation circuit. Finally, a switching circuit is provided for switching an output characteristic of the control circuit.

摘要翻译： 一种内插装置，被配置为输入（a）包括多个采样数据的串行数据序列和（b）串行标志序列，其包括指示采样数据的有效性的标志数据，并且被布置成通过以下步骤输出输出数据序列： 用插补数据代替采样数据的一部分，包括用于接收输入数据序列和输出数据序列的并行输出的并行物理采样数据被插值的第一并置电路和具有高相关性的多个采样数据 与客观采样数据。 提供了一种内插电路，用于通过选择性地使用从第一并置电路输出的目标采样数据和多个采样数据来输出输出数据序列。 提供第二并置电路，用于接收标志序列并且并行输出指示多个采样数据的一部分的有效性的多个标志数据。 提供控制电路，用于接收从第二并置电路输出的多个标志数据，并输出用于控制内插电路的控制数据。 最后，提供切换电路用于切换控制电路的输出特性。

公开(公告)号：US4965674A

公开(公告)日：1990-10-23

申请号：US265753

申请日：1988-11-01

申请人： Kenichi Nagasawa ,  Taizou Hori

发明人： Kenichi Nagasawa ,  Taizou Hori

IPC分类号： G11B20/00 ,  H04N7/06 ,  H04N9/835 ,  H04S3/02

CPC分类号： H04N9/8355 ,  G11B20/00992 ,  H04N7/06 ,  H04S3/02

摘要： An audio signal recording system comprising a first apparatus for generating a sum signal of left and right signals of a stereophonic audio signal and a difference signal of the left and right signals, and a second apparatus for recording on a recording medium the sum signal and the difference signal which have been generated by the first apparatus, without converting the sum signal and difference signal into the left and right signals.

摘要翻译： 一种音频信号记录系统，包括用于产生立体声音频信号的左和右信号和左右信号的差分信号的和信号的第一装置，以及用于在记录介质上记录和信号和 差分信号由第一装置生成，而不将和信号和差分信号转换成左和右信号。

公开(公告)号：US4953048A

公开(公告)日：1990-08-28

申请号：US353234

申请日：1989-05-17

申请人： Makoto Kameyama ,  Kiyozumi Niizuma ,  Kenichi Nagasawa ,  Takashi Suzuki ,  Toshio Yamanaka ,  Tsuyoshi Orikasa ,  Fujihiro Ito ,  Kazuyo Yoshida

发明人： Makoto Kameyama ,  Kiyozumi Niizuma ,  Kenichi Nagasawa ,  Takashi Suzuki ,  Toshio Yamanaka ,  Tsuyoshi Orikasa ,  Fujihiro Ito ,  Kazuyo Yoshida

IPC分类号： G11B5/127 ,  G11B5/187

CPC分类号： G11B5/187 ,  G11B5/127

摘要： A magnetic head including pair of core halves joined opposite to each other, each core half including a first magnetic material on which is deposited a magnetic film of a second magnetic material having a high saturation magnetic flux density and a low magnetic permeability compared with the first magnetic material, both the magnetic films having a magnetic gap arranged therebeteween, includes a pair of nonmagnetic members, each of which is adjacent to each end of the magnetic gap, in a surface of the head, along which a recording medium slides, wherein each of the magnetic films extends along the outer edge of the nonmagnetic member adjacent to one of the core halves, and the boundary between the first magnetic material and the second magnetic material includes a portion extending outward and a portion extending parallel to the magnetic gap and out of alignment with the first-mentioned portion.

摘要翻译： 一种磁头，包括彼此相对的一对芯半部，每个磁芯半部包括第一磁性材料，其上沉积有与第一磁性材料相比具有高饱和磁通密度和低磁导率的第二磁性材料的磁性膜 磁性材料，具有布置在其上的磁隙的磁性膜都包括一对非磁性构件，每个非磁性构件在头部的表面中与磁隙的每个端部相邻，记录介质沿着该磁性构件滑动，其中每个 的磁性薄膜沿与非磁性部件的外缘相邻的一半的核半部延伸，并且第一磁性材料与第二磁性材料之间的边界包括向外延伸的部分和平行于磁隙延伸的部分 与第一提到的部分对准。

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。

公开(公告)号：US4870509A

公开(公告)日：1989-09-26

申请号：US34838

申请日：1987-04-06

申请人： Kenichi Nagasawa ,  Koji Takahashi ,  Hiroto Yasumura ,  Ohikara Sato ,  Tadayoshi Nakayama

发明人： Kenichi Nagasawa ,  Koji Takahashi ,  Hiroto Yasumura ,  Ohikara Sato ,  Tadayoshi Nakayama

IPC分类号： G11B15/087 ,  G11B15/12 ,  G11B20/00 ,  H04N5/765 ,  H04N5/782 ,  H04N9/79

CPC分类号： G11B15/125 ,  G11B15/087 ,  G11B20/00007 ,  H04N5/765 ,  H04N5/782 ,  H04N9/7921

摘要： An apparatus for recording and/or reproducing video signals is disclosed. First and second video signals from an imaging unit and an external video input, respectively, are coupled to the apparatus. A converter circuit selectively acts to form a time expanded or time compressed version of the input video signal depending upon whether the input is the first or second input signal. In the former case, the first input video is recorded on a recording medium and the time expanded version coupled to a display, while in the latter case, the second input video signal is coupled to the display and the compressed version recorded. During the reproduction, the converter circuit also generates a time expanded version of the reproduced signal for coupling to the display.

摘要翻译： 公开了一种用于记录和/或再现视频信号的装置。 来自成像单元和外部视频输入的第一和第二视频信号分别耦合到该装置。 A转换器电路根据输入是否是第一或第二输入信号，选择性地起作用以形成输入视频信号的时间扩展或时间压缩版本。 在前一种情况下，第一输入视频被记录在记录介质上，并且时间扩展版本耦合到显示器，而在后一种情况下，第二输入视频信号耦合到显示器并记录压缩版本。 在再现期间，转换器电路还生成用于耦合到显示器的再现信号的时间扩展版本。

公开(公告)号：US4811120A

公开(公告)日：1989-03-07

申请号：US830958

申请日：1986-02-19

申请人： Motokazu Kashida ,  Susumu Kozuki ,  Hiroyuki Takimoto ,  Kouji Takahashi ,  Kenichi Nagasawa

发明人： Motokazu Kashida ,  Susumu Kozuki ,  Hiroyuki Takimoto ,  Kouji Takahashi ,  Kenichi Nagasawa

IPC分类号： G11B15/087 ,  G11B19/04 ,  G11B20/00 ,  G11B27/34 ,  G11B27/36 ,  G11B33/10 ,  H04N5/7826 ,  H04N9/802 ,  H04N5/78

CPC分类号： G11B19/04 ,  G11B15/087 ,  G11B20/00 ,  G11B27/34 ,  G11B27/36 ,  G11B33/10 ,  H04N5/7826 ,  H04N9/802

摘要： An information signal recording and/or reproducing apparatus for recording and/or reproducing signals with transducing means in or from a given area on a recording medium is arranged to detect by using the transducing means the presence of an existing record of either a first information signal which includes a video signal or a second information signal which includes an audio signal in the given area and to be capable of finding any record of the first information signal by detecting the record of the second information signal.

摘要翻译： 一种信息信号记录和/或再现装置，用于在记录介质上的给定区域中记录和/或再现具有换能装置的信号，并通过使用转换装置来检测存在第一信息信号的现有记录 其包括视频信号或包括给定区域中的音频信号的第二信息信号，并且能够通过检测第二信息信号的记录来找到第一信息信号的任何记录。

公开(公告)号：US4740845A

公开(公告)日：1988-04-26

申请号：US833345

申请日：1986-02-25

申请人： Motokazu Kashida ,  Masahiro Takei ,  Kouji Takahashi ,  Toshiyuki Masui ,  Tsutomu Fukatsu ,  Kenichi Nagasawa

发明人： Motokazu Kashida ,  Masahiro Takei ,  Kouji Takahashi ,  Toshiyuki Masui ,  Tsutomu Fukatsu ,  Kenichi Nagasawa

IPC分类号： G11B20/12 ,  G11B5/008 ,  G11B20/10 ,  G11B27/10 ,  G11B27/30 ,  G11B5/09 ,  G11B5/00

CPC分类号： G11B27/107 ,  G11B20/10527 ,  G11B27/3027 ,  G11B27/3036 ,  G11B5/0086 ,  G11B2020/10592 ,  G11B2220/90 ,  G11B2220/913

摘要： In an apparatus for recording a data sequence including main binary data of an (m X n) number of bits formed by sampling a main information signal and a plurality of subordinate binary data of also an (m X n) number of bits respectively carrying additional information of varied kinds, recording tracks are formed one after another with data which includes the main binary data representing the main information signal sampled within a given period of time and the plurality of subordinate binary data recorded in each of the tracks; and recording is performed in such a manner that, among the plurality of subordinate binary data, the meaning of information carried by a second n number of bits varies according as the condition of the data varies between a case where l-adic numerical data is arranged to be formed by a first n number of bits within the plurality of subordinate binary data and another case where irregular data is formed there as the l-adic numerical data cannot be formed by the first n number of bits (n and m being integers, respectively, and l being an integer not exceeding 2.sup.n).

摘要翻译： 在用于记录数据序列的装置中，该数据序列包括通过对主信息信号进行采样而形成的（m×n）个位数的主二进制数据以及分别携带附加的（m×n）个位的多个次级二进制数据 不同类型的信息，记录磁道依次形成数据，该数据包括表示在给定时间段内采样的主信息信号的主二进制数据和记录在每个磁道中的多个次级二进制数据; 并且以这样的方式执行记录，使得在多个从属二进制数据中，由第二n位数据携带的信息的含义根据数据的条件在布置有l-adic数字数据的情况之间变化 由多个次级二进制数据中的前n个比特形成，另外一个情况是由于第一n个比特（n和m是整数）而不能形成无规数的数据， 分别为l为不超过2n的整数）。

公开(公告)号：US4688102A

公开(公告)日：1987-08-18

申请号：US550486

申请日：1983-11-09

申请人： Hiroo Edakubo ,  Kenichi Nagasawa

发明人： Hiroo Edakubo ,  Kenichi Nagasawa

IPC分类号： H04N9/76 ,  H04N9/79 ,  H04N9/82

CPC分类号： H04N9/76 ,  H04N9/79 ,  H04N9/8227

摘要： A color video signal mixing system wherein a first separating arrangement separates a first luminance signal from a first color video signal; a second separating arrangement separates a first chrominance signal from the first color video signal; a third separating arrangement separates a second luminance signal from a second color video signal; and a fourth separating arrangement separates a second chrominance signal from the second color video signal. A first mixing arrangement produces a mixed luminance signal from the first and second luminance signal; a selecting device selects one of the first and second chrominance signals; a control facility controls the selecting action of the selecting device; and a second mixing arrangement produces a mixed color signal by mixing the mixed luminance signal and the selected chrominance signal.

摘要翻译： 一种彩色视频信号混合系统，其中第一分离装置将第一亮度信号与第一彩色视频信号分离; 第二分离装置将第一色度信号与第一彩色视频信号分离; 第三分离装置将第二亮度信号与第二彩色视频信号分离; 并且第四分离装置将第二色度信号与第二彩色视频信号分开。 第一混合装置从第一和第二亮度信号产生混合亮度信号; 选择装置选择第一和第二色度信号之一; 控制装置控制选择装置的选择动作; 并且第二混合装置通过混合混合亮度信号和所选择的色度信号来产生混合颜色信号。