公开(公告)号：US5057949A

公开(公告)日：1991-10-15

申请号：US421358

申请日：1989-10-13

申请人： Atsuo Suga ,  Shigemitsu Higuchi ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Masataka Sekiya

发明人： Atsuo Suga ,  Shigemitsu Higuchi ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Masataka Sekiya

IPC分类号： H04N5/92 ,  G11B5/588 ,  G11B5/592 ,  G11B15/18 ,  G11B15/467 ,  H04N5/783

CPC分类号： G11B15/1875 ,  G11B15/4677 ,  G11B5/592

摘要： A magnetic recording and reproducing apparatus having a construction in which a digital signal including index signals recorded on a magnetic tape is reproduced and rotary magnetic heads are movable. The digital signal is reproduced by digital signal reproducing means including the rotary magnetic heads. A particular index signal among the index signals is detected by index signal detecting means. Further, the timing for reproducing the particular index signal is detected by timing detecting means. The rotary magnetic heads are moved and deviated in the direction of the rotary shaft of the rotary cylinder by rotary magnetic head position deviating means. Tape speed detecting means compares a reproduction clock with a reference clock and outputs a tape speed signal. First rotary magnetic head position deviation control means forms a control input for the rotary magnetic head position deviating means on the basis of the tape speed signal. Second rotary magnetic head position deviation control means forms the control input for the rotary magnetic head position deviating means on the basis of an output signal of the timing detecting means.

摘要翻译： 具有这样的结构的磁记录和再现装置，其中再现包括记录在磁带上的索引信号的数字信号，旋转磁头是可移动的。 数字信号由包括旋转磁头的数字信号再现装置再现。 索引信号中的特定索引信号由索引信号检测装置检测。 此外，由定时检测装置检测用于再现特定索引信号的定时。 旋转磁头通过旋转磁头位置偏移装置在旋转磁盘的旋转轴的方向上移动和偏离。 磁带速度检测装置将再现时钟与参考时钟进行比较并输出磁带速度信号。 第一旋转磁头位置偏差控制装置基于带速度信号形成用于旋转磁头位置偏离装置的控制输入。 第二旋转磁头位置偏差控制装置基于定时检测装置的输出信号形成用于旋转磁头位置偏移装置的控制输入。

公开(公告)号：US5438459A

公开(公告)日：1995-08-01

申请号：US876083

申请日：1992-04-30

申请人： Atsuo Suga ,  Shigemitsu Higuchi ,  Hideo Nishijima ,  Hiromasa Fujii

发明人： Atsuo Suga ,  Shigemitsu Higuchi ,  Hideo Nishijima ,  Hiromasa Fujii

IPC分类号： G11B20/10 ,  G11B5/008 ,  G11B5/09 ,  G11B15/087 ,  G11B20/18 ,  G11B27/032 ,  G11B27/30 ,  G11B27/36 ,  H04N5/7826 ,  H04N9/804 ,  H04N9/87 ,  H04N5/78 ,  H04N9/79

CPC分类号： G11B27/032 ,  G11B15/087 ,  G11B20/1879 ,  G11B27/3027 ,  G11B27/36 ,  G11B5/0086 ,  G11B5/09 ,  H04N9/804 ,  G11B2020/183 ,  G11B2220/216 ,  G11B2220/90 ,  H04N5/78266 ,  H04N9/87

摘要： The precedingly reproduction signal reproduced by a precedingly reproducing head is recorded on a tape. If it is detected that the reproduction signal includes abnormality owing to a reason such as poor error rate, the recording operation is stopped. Then, for retrial of the recording, the information on the position where the abnormality has occurred is held. A memory may be provided to always rewrite and store the signal reproduced by the precedingly reproducing head, and also a simultaneously reproducing head which is different from the precedingly reproducing head may be provided to immediately monitor the recording state of the signal recorded on the tape. If it is detected that the signal reproduced by the simultaneously reproducing head includes abnormality, the recording operation is stopped, the information on the position where the abnormality has occurred is held. Further, the rewrite operation in the memory is stopped and the original precedingly reproduction signal corresponding to the signal to be recorded at the position where the abnormality has occurred is held in the memory.

摘要翻译： 由先前再现头再现的先前再现信号被记录在磁带上。 如果检测到再现信号由于错误率差等原因而包含异常，则停止记录操作。 然后，为了重新记录，保持发生了异常的位置的信息。 可以提供存储器来总是重写和存储由先前再现头再现的信号，并且还可以提供与先前再现头不同的同时再现头，以立即监视记录在磁带上的信号的记录状态。 如果检测到由同时再现头再现的信号包含异常，则停止记录操作，保持发生异常的位置的信息。 此外，存储器中的重写操作被停止，并且与在要发生异常的位置处要被记录的信号相对应的原始先前再现信号被保持在存储器中。

公开(公告)号：US5144453A

公开(公告)日：1992-09-01

申请号：US336786

申请日：1989-04-13

申请人： Atsuo Suga ,  Shigemitsu Higuchi

发明人： Atsuo Suga ,  Shigemitsu Higuchi

IPC分类号： H04N5/91 ,  G11B27/032 ,  G11B27/036 ,  G11B27/32 ,  H04N5/78 ,  H04N5/926

CPC分类号： H04N5/926 ,  G11B27/036 ,  G11B27/323 ,  G11B2220/90 ,  G11B27/032

摘要： Disclosed is a digital video signal record/play-back apparatus in which when a time code signal is recorded/played-back onto/from a recording medium correspondingly to a video signal, the time code signal is recorded/played-back with a time delay which is given by a delay time corresponding to the time taken for signal processing necessary for the recording/play-back of the video signal.

摘要翻译： 公开了一种数字视频信号记录/回放装置，其中当对应于视频信号将时间码信号记录/重放到记录介质上/从记录介质中记录/重放时，时间码信号被记录/播放一段时间 延迟时间由与视频信号的记录/重放所需的信号处理所花费的时间相对应的延迟时间给出。

公开(公告)号：US5521769A

公开(公告)日：1996-05-28

申请号：US136766

申请日：1993-10-15

申请人： Atsuo Suga ,  Shigemitsu Higuchi ,  Kouji Fujita ,  Toshiro Aizawa ,  Minoru Kosuge

发明人： Atsuo Suga ,  Shigemitsu Higuchi ,  Kouji Fujita ,  Toshiro Aizawa ,  Minoru Kosuge

IPC分类号： G11B5/588 ,  G11B15/18 ,  G11B15/467 ,  G11B20/18 ,  G11B21/04 ,  G11B5/584

CPC分类号： G11B5/588 ,  G11B15/1808 ,  G11B15/4673 ,  G11B20/18 ,  G11B2020/183

摘要： A magnetic tape drive in a helical scan system can shorten retry operation time. A data signal reproduced from magnetic tape through reproducing heads is supplied to a regenerative signal processing circuit. If an uncorrectable error is contained in the signal, the regenerative signal processing circuit outputs error information to a system controller. Then, the system controller sends a retry instruction to a movable head controller. When receiving the retry instruction, the movable head controller supplies movable head control signals to displacement elements which then displace the reproducing heads along a rotating shaft of a rotary drum for re-scanning an error occurrence data track. This retry operation is repeated until no error is detected. The magnetic tape is run at lower speed or is stopped as required during the repetitive retry operation.

摘要翻译： 螺旋扫描系统中的磁带驱动器可以缩短重试操作时间。 从磁带通过再现头再现的数据信号被提供给再生信号处理电路。 如果信号中包含不可纠正的错误，则再生信号处理电路向系统控制器输出错误信息。 然后，系统控制器向可动头控制器发送重试指令。 当接收到重试指令时，可移动头控制器将可移动的头部控制信号提供给位移元件，该位移元件然后沿着旋转鼓的旋转轴移动再现头，用于重新扫描错误发生数据轨道。 重复该重试，直到没有检测到错误。 磁带以较低速度运行或在重复重试操作期间根据需要停止。

公开(公告)号：US5500775A

公开(公告)日：1996-03-19

申请号：US136641

申请日：1993-10-13

申请人： Kouji Fujita ,  Shigemitsu Higuchi ,  Toshiro Aizawa ,  Atsuo Suga ,  Minoru Kosuge

发明人： Kouji Fujita ,  Shigemitsu Higuchi ,  Toshiro Aizawa ,  Atsuo Suga ,  Minoru Kosuge

IPC分类号： G11B5/588 ,  G11B15/087 ,  G11B15/467 ,  G11B15/52 ,  G11B20/12 ,  G11B21/04

CPC分类号： G11B15/4675 ,  G11B15/087 ,  G11B15/52

摘要： A data recording and reproducing apparatus of a helical scanning system includes a unit for recording and reproducing an information signal in an oblique information track on a magnetic tape by a rotary magnetic head and a unit for recording and reproducing a control signal on the magnetic tape in a longitudinal direction thereof. Further, the data recording and reproducing apparatus includes a memory unit for storing a difference (X-value error information) between a predetermined X value and a distance (X value) between a record starting position of the information track and a recorded position of the control signal, a unit for recording X-value error information on the magnetic tape individually each time information is recorded, a unit for reproducing X-value error information on the magnetic tape, and a unit for shifting a reproduced phase of the control signal in accordance with the X-value error information.

摘要翻译： 螺旋扫描系统的数据记录和再现装置包括用于通过旋转磁头在磁带上的倾斜信息轨道中记录和再现信息信号的单元，以及用于在磁带上记录和再现控制信号的单元 其纵向方向。 此外，数据记录和再现装置包括存储单元，用于存储预定X值与信息轨道的记录开始位置与记录位置之间的距离（X值）之间的差值（X值误差信息） 控制信号，用于在记录每次时间信息时分别记录磁带上的X值误差信息的单元，用于再现磁带上的X值误差信息的单元，以及用于将控制信号的再现相位移位的单元 根据X值错误信息。

公开(公告)号：US5636316A

公开(公告)日：1997-06-03

申请号：US283685

申请日：1994-08-01

申请人： Masuo Oku ,  Yukio Fujii ,  Masaru Takahashi ,  Kenji Ichige ,  Keizo Nishimura ,  Atsuo Suga ,  Shigemitsu Higuchi ,  Tomohide Sorihashi

发明人： Masuo Oku ,  Yukio Fujii ,  Masaru Takahashi ,  Kenji Ichige ,  Keizo Nishimura ,  Atsuo Suga ,  Shigemitsu Higuchi ,  Tomohide Sorihashi

IPC分类号： H04N9/797 ,  H04N9/804 ,  H04N5/92

CPC分类号： H04N9/8047 ,  H04N9/7973

摘要： A digital processing unit for converting a digital picture signal into data by blocks and for correction encoding a variable-length encoded signal. This digital processing unit includes a digital data compressing section for dividing a picture signal into a plurality of number of blocks, and compressingly outputting digital data of this picture signal based on a processing unit of one or a few blocks, a buffer section for sequentially storing the digital data, and an error correction encoding section for sequentially reading the digital data from this buffer section, and structuring an inner code for each inner block structured by this digital data and structuring an outer code for each predetermined unit of inner blocks, to thereby structure two-dimensional error correction code blocks, to output an error correction code signal. Further, the error correction encoding section has the length of the digital data of the picture signal included in the inner code set to be equal to or larger than a mean code length of predetermined compressed blocks.

摘要翻译： 一种数字处理单元，用于将数字图像信号转换成数据块并用于对可变长度编码信号进行校正编码。 该数字处理单元包括数字数据压缩部分，用于将图像信号分成多个块，并且基于一个或几个块的处理单元压缩输出该图像信号的数字数据;缓冲部分，用于顺序存储 数字数据和纠错编码部分，用于从该缓冲器部分顺序读取数字数据，并且构造由该数字数据构成的每个内部块的内部代码，并为每个内部块的每个预定单位构成外部代码，由此 结构二维纠错码块，输出纠错码信号。 此外，纠错编码部分将内部码中包括的图像信号的数字数据的长度设置为等于或大于预定压缩块的平均码长。

公开(公告)号：US5392163A

公开(公告)日：1995-02-21

申请号：US161455

申请日：1993-12-06

申请人： Shigemitsu Higuchi ,  Atsuo Suga ,  Yuji Inaba ,  Toshiro Aizawa

发明人： Shigemitsu Higuchi ,  Atsuo Suga ,  Yuji Inaba ,  Toshiro Aizawa

IPC分类号： G11B15/43 ,  G11B15/467 ,  G11B20/00 ,  G11B20/10 ,  H04N5/783 ,  H04N5/919 ,  H04N5/92 ,  H04N5/926 ,  H04N9/802 ,  H04N5/78

CPC分类号： H04N5/926 ,  G11B15/43 ,  G11B15/4671 ,  G11B20/00007 ,  H04N5/783 ,  H04N5/919 ,  H04N9/802

摘要： For the purpose of data compression and expansion in the playback mode reproducing data including video data and audio data recorded on a magnetic tape, a relative speed signal is generated from a circuit on the basis of the moving speed of the magnetic tape and the rotation speed of a head drum, and the characteristic of the recorded data is controlled according to this relative speed signal. The tension of the magnetic tape is detected by a circuit, and the phase difference between the detected tape tension signal and a reel rotation speed command signal is detected by a circuit so as to control the tape tension according to the detected phase difference. When a target value of the drum rotation speed is changed, a drum drive signal is changed stepwise at a predetermined time interval, and the amount of delay of a drum rotation reference signal delayed according to a signal indicative of the rotation speed of a capstan is changed, so as to determine the range in which both the capstan rotation speed and the drum rotation speed can be changed. Interfaces are disposed between a system controller and a pitch controller so as to control the tone pitch of the audio signal according to the capstan rotation speed signal.

摘要翻译： 为了在重放模式下进行数据压缩和扩展，再现包括记录在磁带上的视频数据和音频数据的数据，基于磁带的移动速度和转速，从电路产生相对速度信号 并且根据该相对速度信号控制记录数据的特性。 通过电路检测磁带的张力，通过电路检测检测到的带张力信号和卷轴转速指令信号之间的相位差，以根据检测到的相位差来控制带张力。 当滚筒旋转速度的目标值改变时，滚筒驱动信号以预定的时间间隔逐步改变，并且根据表示主导体的转速的信号而延迟的滚筒旋转基准信号的延迟量是 改变，以便确定可以改变主导轮转速和转鼓旋转速度的范围。 接口设置在系统控制器和俯仰控制器之间，以便根据主导轴转速信号来控制音频信号的音调。

公开(公告)号：US5220477A

公开(公告)日：1993-06-15

申请号：US668127

申请日：1991-03-12

申请人： Tomohide Sorihashi ,  Shigemitsu Higuchi ,  Hideo Nishijima ,  Yuji Inaba

发明人： Tomohide Sorihashi ,  Shigemitsu Higuchi ,  Hideo Nishijima ,  Yuji Inaba

IPC分类号： G11B15/43 ,  G11B15/665

CPC分类号： G11B15/665 ,  G11B15/43

摘要： A cassette tape-loading apparatus applied to a magnetic recording and reproducing apparatus using a cassette tape comprises a device for determining the amount of rotation of supply and take-up reels, a device for detecting the rotational direction of the reels, and a device for detecting the amount of tape drawn out of the cassette. Before loading the cassette tape, the ratio of winding diameter between the supply and take-up reels is computed, and the result is used to set the torque of the reel-driving motors and start the loading operation. At the time of loading, on the other hand, the amount of rotation of the two reels is determined, and the winding diameters of the reels computed from the winding diameter ratio and the amount of drawn-out tape thereby to set a proper tension of the magnetic tape. Since the tension applied to the magnetic tape and the torques of the reel motors are set in accordance with the winding diameter ratio and the winding diameters, magnetic tape of substantially equal amount is drawn out of each of the two reels, with the result that the magnetic tape is not subjected to an abnormal tension, thereby making possible a stable cassette tape-loading operation without damaging the tape or displacing the tape position.

摘要翻译： 使用盒式磁带的应用于磁记录和再现装置的盒式磁带装载装置包括用于确定供应和卷取卷轴的旋转量的装置，用于检测卷轴的旋转方向的装置，以及用于 检测从磁带盒中抽出的磁带的数量。 在装入盒式磁带之前，计算供给卷轴和卷取卷轴之间的卷绕直径的比例，结果用于设定卷轴驱动电机的转矩并开始加载操作。 另一方面，在装载时，确定两个卷轴的旋转量，并且根据卷绕直径比计算出的卷轴的卷绕直径和拉出卷的数量，从而设定适当的张力 磁带。 由于施加到磁带的张力和卷轴电动机的转矩根据卷绕直径比和卷绕直径设定，所以两个卷轴中的每一个卷取出大致相等量的磁带，结果是 磁带不会受到异常张力，从而使得可以稳定的盒式磁带装载操作而不损坏磁带或移动磁带位置。

公开(公告)号：US07174092B2

公开(公告)日：2007-02-06

申请号：US10754614

申请日：2004-01-12

申请人： Yutaka Nagai ,  Toshifumi Takeuchi ,  Shigemitsu Higuchi

发明人： Yutaka Nagai ,  Toshifumi Takeuchi ,  Shigemitsu Higuchi

IPC分类号： H04N5/85 ,  H04N5/91

CPC分类号： G11B20/10 ,  G11B7/00 ,  G11B19/28 ,  G11B20/10527 ,  G11B20/1258 ,  G11B27/105 ,  G11B2020/10962 ,  G11B2020/1099 ,  G11B2020/1244 ,  G11B2220/216 ,  G11B2220/2537 ,  H04N5/76 ,  H04N5/85

摘要： A disk-shaped recording medium recording/reproducing method for performing a data recording operation and a data reproducing operation to the disk-shaped recording medium alternately includes identifying whether a recording area at an ending point of an n-th recording operation on the disk-shaped recording medium, where n is a natural number, is continuous to a recording area at a starting point of (n+1) recording operation. In response to an identifying result indicative of discontinuation of the recording area in the identifying step, the rotational speed of the disk-shaped recording medium is changed to a rotational speed at the starting point of the (n+1)th recording operation, during a reproducing operation between the n-th recording operation and the (n+1)th recording operation.

摘要翻译： 用于对盘形记录介质执行数据记录操作和数据再现操作的盘形记录介质记录/再现方法交替包括：识别在盘片记录介质上的第n次记录操作的终点处的记录区域， 其中n是自然数，在（n + 1）记录操作的起点处与记录区连续。 响应于识别步骤中指示停止记录区域的识别结果，在第（n + 1）记录操作的开始点处，盘形记录介质的旋转速度被改变为旋转速度 在第n记录操作和第（n + 1）记录操作之间的再现操作。

公开(公告)号：US06229777B1

公开(公告)日：2001-05-08

申请号：US09227966

申请日：1999-01-11

申请人： Tatsuya Ishitobi ,  Hiroaki Ono ,  Tamotsu Ito ,  Shigemitsu Higuchi

发明人： Tatsuya Ishitobi ,  Hiroaki Ono ,  Tamotsu Ito ,  Shigemitsu Higuchi

IPC分类号： G11B390

CPC分类号： G11B27/036 ,  G11B7/0045 ,  G11B7/006 ,  G11B11/10595 ,  G11B27/329 ,  G11B2220/20 ,  G11B2220/2525

摘要： An information recording and control method and apparatus for a recording medium disc having information previously recorded thereon. New information is overwritten at least a portion of the previously recorded information in a recording area of the recording medium disc. Information on the new information is cataloged as control information on the recording medium disc. Residual information which is part of the previously recorded information which is not overwritten by the new information is treated as new information and information on the residual information which is treated as new information is cataloged as control information on the recording medium disc.

摘要翻译： 一种用于记录介质盘的信息记录和控制方法及装置，其具有先前记录的信息。 新信息在记录介质盘的记录区域中覆盖先前记录的信息的至少一部分。 关于新信息的信息被列为记录介质盘上的控制信息。 作为未被新信息覆盖的先前记录的信息的一部分的剩余信息被视为新信息，并且将被视为新信息的残留信息被作为控制信息编辑在记录介质盘上。