公开(公告)号：US4982391A

公开(公告)日：1991-01-01

申请号：US155276

申请日：1988-02-12

申请人： Wataru Sakagami ,  Shigeyuki Taniwa ,  Kiyonobu Endo ,  Hideki Hosoya

发明人： Wataru Sakagami ,  Shigeyuki Taniwa ,  Kiyonobu Endo ,  Hideki Hosoya

IPC分类号： G11B7/085 ,  G11B15/18 ,  G11B21/08

CPC分类号： G11B7/08505 ,  G11B15/1875 ,  G11B21/081

摘要： A method and apparatus for accessing a track in a recording medium during a stopped state of recording or reproduction. The method includes accessing a recording and/or reproducing device to a desired track of a plurality of tracks on the information recording medium. The recording and/or reproducing device and the recording medium are not relatively moved in a longitudinal direction of the tracks, while the recording and/or reproducing device is moved relative to the recording medium in a direction which crosses the tracks. The apparatus for recording and/or reproducing information includes a device for recording information on and/or reproducing information from a recording medium having a plurality of parallel tracks, a first driving device for moving the recording medium relative to the recording and/or reproducing device in a longitudinal direction of the tracks, a second driving device for moving the recording and/or reproducing device relative to the recording medium in a direction crossing the tracks, and a device for controlling the first driving device for disabling the first driving device when the second driving device is operated.

公开(公告)号：US5689630A

公开(公告)日：1997-11-18

申请号：US139779

申请日：1993-10-22

申请人： Shigeyuki Taniwa

发明人： Shigeyuki Taniwa

IPC分类号： G06F3/06 ,  G11B20/10 ,  G11B20/12 ,  H04N1/21 ,  G06F12/12

CPC分类号： G06F3/0601 ,  G11B20/12 ,  G06F2003/0692

摘要： An information recording/reproducing apparatus for performing information recording or reproduction with a recorded medium having a plurality of recording blocks. Different categories of information recorded in the recording blocks on the recording medium are read out by a read/write section and are stored in different storage areas corresponding to the categories of the information, and information to be supplied to a host computer or the like is thereafter prepared.

摘要翻译： 一种用于利用具有多个记录块的记录介质执行信息记录或再现的信息记录/再现装置。 记录在记录介质上的记录块中的不同类别的信息由读/写部分读出，并被存储在与信息类别对应的不同的存储区域中，并且要提供给主计算机等的信息是 此后准备。

公开(公告)号：US5220554A

公开(公告)日：1993-06-15

申请号：US963021

申请日：1992-10-19

申请人： Shigeyuki Taniwa

发明人： Shigeyuki Taniwa

IPC分类号： G11B11/105 ,  G11B20/10

CPC分类号： G11B20/10009 ,  G11B11/10515

摘要： A reproduced signal processing apparatus for optically reproducing and demodulating modulated data recorded on an optical information recording media, comprises means for integrating the optically reproduced signal for each predetermined section, comparing the integrations of adjacent sections and amplifying or attenuating a portion of the unintegrated reproduced signal corresponding to the predetermined section in accordance with the comparison result.

摘要翻译： 用于光学地再现和解调记录在光学信息记录介质上的调制数据的再现信号处理装置包括用于对每个预定部分的光学再现信号进行积分的装置，比较相邻部分的积分并放大或衰减部分未整合的再现信号 对应于根据比较结果的预定部分。

公开(公告)号：US5664094A

公开(公告)日：1997-09-02

申请号：US45308

申请日：1993-04-12

申请人： Shigeyuki Taniwa ,  Ichiro Iida

发明人： Shigeyuki Taniwa ,  Ichiro Iida

IPC分类号： G11B19/04 ,  G11B20/18 ,  G11B27/36 ,  G06F11/277

CPC分类号： G11B19/04 ,  G11B20/1816 ,  G11B27/36

摘要： An information verifying apparatus for verifying information recorded on a recording medium. One unit of information input is recorded on a storage medium and is retrieved from the storage medium. A buffer memory stores the one unit of information input, the one unit of information stored in the buffer memory being the same as the one unit of information recorded on the storage medium. An output controller outputs the retrieved information and controls the timing of output of the retrieved information. A comparator compares the information from the buffer memory with the information from the output controller. Since the information is verified using a buffer memory and on output controller, verification can be quickly performed without the use of a large quantity of memory.

摘要翻译： 一种用于验证记录在记录介质上的信息的信息验证装置。 将一个信息输入单元记录在存储介质上并从存储介质中检索。 缓冲存储器存储输入的一个信息单元，存储在缓冲存储器中的一个信息单元与记录在存储介质上的一个信息单元相同。 输出控制器输出检索到的信息并控制检索信息的输出定时。 比较比较来自缓冲存储器的信息和输出控制器的信息。 由于使用缓冲存储器和输出控制器对信息进行验证，因此可以快速执行验证，而无需使用大量内存。

公开(公告)号：US5617390A

公开(公告)日：1997-04-01

申请号：US370826

申请日：1995-01-10

申请人： Katsumi Iijima ,  Shigeyuki Taniwa

发明人： Katsumi Iijima ,  Shigeyuki Taniwa

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B20/14

CPC分类号： G11B7/00745 ,  G11B20/1496 ,  G11B7/005 ,  G11B7/24085

摘要： The present invention realizes to increase a recording density in an optical information recording medium. The recording medium on which multi-value digital information is recorded includes a mark for forming an identification signal for identifying values of the multi-value digital signal from a reproduction signal obtained upon reproduction of the information recorded in the recording medium. An optically information recording/reproducing method according to the present invention has an information recording step and an information reproducing step. In the information recording step, a reference mark and multi-value digital information are recorded on the recording medium. The reference mark is to form an identification signal used for identifying values of the multi-value digital information from a reproduction signal optically detected from the recording medium. In the information reproducing step, the identification signal is formed from the reference mark and the values of the multi-value digital information is identified from the reproduction signal by the use of the identification signal, and thereby the multi-value digital information is reproduced.

摘要翻译： 本发明实现了增加光信息记录介质中的记录密度。 其上记录多值数字信息的记录介质包括用于根据再现记录在记录介质中的信息时获得的再现信号形成用于识别多值数字信号的值的识别信号的标记。 根据本发明的光学信息记录/再现方法具有信息记录步骤和信息再现步骤。 在信息记录步骤中，在记录介质上记录参考标记和多值数字信息。 参考标记是根据从记录介质光学检测的再现信号，形成用于识别多值数字信息的值的识别信号。 在信息再现步骤中，由参考标记形成识别信号，并且通过使用识别信号从再现信号识别多值数字信息的值，从而再现多值数字信息。

公开(公告)号：US5128946A

公开(公告)日：1992-07-07

申请号：US289016

申请日：1988-12-23

申请人： Tsukasa Ogino ,  Shigeyuki Taniwa

发明人： Tsukasa Ogino ,  Shigeyuki Taniwa

IPC分类号： G11B7/0033 ,  G11B20/18

CPC分类号： G11B20/1879 ,  G11B20/1866 ,  G11B7/0033

摘要： An information recording-reproducing method is disclosed. An error correction code of M bytes and N bytes is imparted in a vertical direction and a horizontal direction, respectively, to data of m.times.n bytes. A signal of (m+M).times.(n+N) bytes (m, n, M and N being one or an integer greater than one) is produced. The signal to which the error correction code has been imparted is written-in to a recording medium. The written-in signal is read out from the recording medium. Error correction on the read-out signal is effected in only one of the vertical direction and the horizontal direction by the use of the error correction code included in the signal. A determination is made of the occurrence of abnormality in the writing-in when all the errors in the signal cannot be corrected by the error correction in the one direction. The signal for which has been determined that no abnormality exists in the writing-in is re-read out from the recording medium and error correction on the re-read-out signal in the vertical direction and the horizontal direction is effected by the use of the error correction code included in the signal. Data is thereby reproduced.