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21. 发明公开

EP0581265A2 Composite magnetic head 失效
标题翻译： Zusammengesetzter Magnetkopf。
公开(公告)号：EP0581265A2
公开(公告)日：1994-02-02
申请号：EP93112061.2
申请日：1993-07-28
申请人： SHARP KABUSHIKI KAISHA
发明人： Muramatsu, Tetsurou , Kira, Tohru , Ishikawa, Toshio
IPC分类号： G11B5/39 , G11B5/48 , G11B5/105
CPC分类号： G11B5/3967 , G11B5/00878 , G11B5/105 , G11B5/488 , G11B5/4893
摘要： The head has a bulk head (11) for recording/reproducing an analog signal and a thin film magnetic head (4,5) for recording/reproducing a digital signal arranged adjacent to each other in a traveling width of a magnetic tape to be integrated. Because of this structure, it is possible to approximately double the number of thin film magnetic heads taken per wafer, whereby productivity is improved. Since bulk head (11) is used for recording/reproducing an analog signal, it is possible to reduce a manufacturing cost. It is also possible to avoid a problem of generation of a noise peculiar to the case where an analog signal is recorded/reproduced by the thin film magnetic head.
摘要翻译：复合磁头具有用于记录/再现模拟信号的体积磁头（11）和用于在磁带的行进宽度中记录/再现彼此相邻布置的数字信号的薄膜磁头（4,5）被整合。由于这种结构，可以使每个晶片获取的薄膜磁头的数目大约增加一倍，从而提高生产率。由于散装头（11）用于记录/再现模拟信号，因此可以降低制造成本。也可以避免产生由薄膜磁头记录/再现模拟信号的情况所特有的噪声的问题。

22. 发明公开

EP0406021A3 Disk recording and reproducing device 失效
标题翻译：磁盘记录和复制设备
公开(公告)号：EP0406021A3
公开(公告)日：1993-09-29
申请号：EP90307184.3
申请日：1990-06-29
申请人： SHARP KABUSHIKI KAISHA
发明人： Maeda, Shigemi , Terashima, Shigeo , Ishikawa, Toshio , Deguchi, Toshihisa, Daiya-haitsu Gakuenmae C-722
IPC分类号： G11B19/04 , G11B20/00 , G11B27/036 , G11B7/00 , G11B11/10 , G11B7/085 , G11B20/18 , G11B27/034 , G11B27/36
CPC分类号： G11B20/00137 , G11B7/0037 , G11B11/10502 , G11B11/10556 , G11B11/10595 , G11B19/04 , G11B20/00086 , G11B20/00152 , G11B20/10 , G11B20/10527 , G11B20/1251 , G11B20/1883 , G11B27/034 , G11B27/036 , G11B27/038 , G11B27/105 , G11B27/11 , G11B27/3027 , G11B27/329 , G11B27/34 , G11B27/36 , G11B2220/20 , G11B2220/216 , G11B2220/2525 , G11B2220/2545 , G11B2220/65
摘要： A disk recording and reproducing device records and reproduces information on and from a magneto-optical disk (1) having absolute addresses and including an information recording area wherein pieces of information entered from external devices are recorded and a (Table of contents) TOC area wherein additional information with respect to each piece of the information recorded in the information recording area is recorded. The device includes operation keys for being operated by the user, a TOC memory for storing therein read/write control information for desired pieces of information entered through the operation keys, an optical head (3) and a magnetic coil (18) for recording in the TOC area the contents stored in the TOC memory as additional information and a controller (6) for controlling read/write operation to the disk according to the read/write control information. With the arrangement, the user can recognize necessary/unnecessary information and defective parts in the disk, and therefore make effective use thereof as well as maintaining secrecy of the information. A disk recording and reproducing device also includes a peak level detection circuit for detecting peak levels of music information, a TOC memory for storing therein peak level information with respect to the peak levels, and an optical head and a magnetic coil for recording in the TOC area the contents stored in the TOC memory as additional information, thereby permitting the user to readily perform preferable copying operation. A disk recording and reproducing device further comprises an optical head and a magnetic coil whereby an end mark is recorded in the rear end part of the additional information, and when a new piece of information is recorded in the information recording area, additional information with respect to the new piece of information is overwritten to add onto an end mark already recorded in the TOC area, and an end mark is newly recorded in a rear end part of the overwritten additional information. Thus, required reproducing time for the TOC area can be shortened. A disk recording and reproducing device includes an optical head for applying a light beam to the disk in recording information, operation keys, memory means wherein an absolute address corresponding to the time when the operation key is operated to initiate recording is stored, and optical head drive control means for moving the optical head back to a vicinity of a position indicated by the absolute address stored in the memory means and for keeping the optical head in a stand-by state by making it perform track-jumps at a position slightly before the position indicated by the absolute address, when re-recording operation of information is performed. Therefore, in re-recording information, the optical head is readily accessed to a vicinity of a recording start position of the former information.

23. 发明公开

EP0470864A1 Method for recording and reproducing information 失效
标题翻译： Verfahren zur Informationsaufzeichnung und -wiedergabe。
公开(公告)号：EP0470864A1
公开(公告)日：1992-02-12
申请号：EP91307369.8
申请日：1991-08-09
申请人： SHARP KABUSHIKI KAISHA
发明人： Van, Kazuo , Ohta, Kenji , Ishikawa, Toshio
IPC分类号： G11B7/24 , G11B7/26
CPC分类号： G11B7/258 , G11B7/00455 , G11B7/0052 , G11B7/00552 , G11B7/244 , G11B7/245 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2585 , G11B7/2595
摘要： A method for recording and reproducing information using an optical memory device being constituted by a transparent substrate, a recording film formed on the substrate and made of a resin containing a photochromic material dispersed therein, the photochromic material being capable of reversibly changing its state from achromatic to chromatic and absorbing light of at least 780 nm wavelength in the chromatic state, and a reflecting film formed on the recording film for reflecting light,
the method including the steps of:
applying a visible light beam of a long wavelength onto the optical memory device to turn said recording film into the achromatic state for initialization,
applying thereafter a visible light beam of a short wavelength onto the optical memory device to turn the recording film into the chromatic state in accordance with binary-coded data of information for recording the information, and
applying another visible light beam of a long wavelength having a light intensity lower than that of the visible light beam for initialization onto the optical memory device for reproducing the information having been recorded therein.
摘要翻译：一种使用由透明基板构成的光学存储装置记录和再生信息的方法，形成在基板上并由含有分散在其中的光致变色材料的树脂制成的记录膜，该光致变色材料能够从无色性可逆地改变其状态在彩色状态下对至少780nm波长的光进行彩色和吸收，以及形成在用于反射光的记录膜上的反射膜，该方法包括以下步骤：将长波长的可见光束施加到光学存储器件将所述记录膜转换为消色差状态进行初始化，然后将短波长的可见光束施加到光存储器件上，以根据用于记录信息的信息的二进制编码数据将记录膜转换为彩色状态，并施加具有光强度lo的长波长的另一可见光束比用于初始化到光学存储器装置上的可见光束的光束重放已经被记录在其中的信息。

24. 发明公开

EP0469931A1 Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus 失效
标题翻译： Magnetaufzeichnungs- undWiedergabegerätfüreinDatenverarbeitungsgerätund Magnetbanddafür。
公开(公告)号：EP0469931A1
公开(公告)日：1992-02-05
申请号：EP91307146.0
申请日：1991-08-02
申请人： SHARP KABUSHIKI KAISHA
发明人： Ishikawa, Toshio , Terashima, Shigeo , Sasada, Taizo
IPC分类号： G11B23/18
CPC分类号： G11B15/087 , G11B5/0083 , G11B15/005 , G11B20/10 , G11B20/1202 , G11B27/107 , G11B27/3027 , G11B27/3063 , G11B2020/10592 , G11B2020/10888 , G11B2220/90 , G11B2220/913
摘要： Disclosed are a magnetic recording and reproduction apparatus for a data processing unit, which includes a plurality of magnetic heads formed integrally by a thin-film forming technology, and a magnetic tape. A magnetic tape (3) has a plurality of recording tracks (1-1 to 1-n) corresponding to a plurality of independent data. The recording tracks are arranged in parallel to a moving direction of the magnetic tape and share the same starting position (Y). A plurality of magnetic heads (H1-Hn) are arranged in parallel to a width direction of the magnetic tape to correspond to the recording tracks in a one-to-one correspondence, and are fixed at the starting position of the recording tracks. The magnetic tape is moved in a direction in which the starting position is away from the magnetic heads for data recording onto the magnetic tape and for data reproduction from the magnetic tape. Further, the magnetic tape is controlled to automatically move in an opposite direction to the previous direction until the starting position reaches the position of the magnetic heads in response to each of the end of the data recording and the end of the data reproduction. Thus, the starting positio of the recording tracks is absolutely at the position of magnetic heads upon the start of data recording and the start of data reproduction.
摘要翻译：公开了一种用于数据处理单元的磁记录和再现装置，其包括通过薄膜形成技术一体地形成的多个磁头和磁带。磁带（3）具有对应于多个独立数据的多个记录磁道（1-1至1-n）。记录轨道与磁带的移动方向平行地布置，并且共享相同的起始位置（Y）。多个磁头（H1-Hn）与磁带的宽度方向平行配置，以一一对应的方式对应于记录磁道，并固定在记录磁道的起始位置。磁带沿开始位置离开磁头的方向移动，用于数据记录到磁带上，并从磁带进行数据再现。此外，磁带被控制成在与先前方向相反的方向上自动移动，直到起始位置响应于数据记录的每个结束和数据再现的结束而到达磁头的位置。因此，在开始数据记录和开始数据再现时，记录磁道的起始位置绝对位于磁头的位置。

25. 发明公开

EP0461907A2 Magneto-optical recording/reproducing device 失效
标题翻译： Magnetooptisches Aufzeichnungs /Wiedergabegerät。
公开(公告)号：EP0461907A2
公开(公告)日：1991-12-18
申请号：EP91305374.0
申请日：1991-06-13
申请人： SHARP KABUSHIKI KAISHA
发明人： Ohta, Kenji , Takahashi, Akira , Muramatsu, Tetsurou , Yamamoto, Tatsushi , Ishikawa, Toshio
IPC分类号： G11B11/10
CPC分类号： G11B13/045 , G11B5/00 , G11B5/1278 , G11B5/1871 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A device which records information by irradiating a light beam (1) of constant intensity on a magneto-optical recording medium (13) while simultaneously applying a magnetic field (8) thereon through a recording magnetic head (5); and which reproduces the recorded information through a reproducing magnetic head (7). The magneto-optical recording medium (13) has a magnetic film (4) formed on a translucent substrate (3) and the magnetic field (8) applied through the recording magnetic head (5) reverses in response to the information to be recorded. The recording magnetic head (5) and the reproducing magnetic head (7) are integrally provided on a single magnetic core (10) in order to set their positions easily with respect to each other. By making a magnetic core end-face (12) of the reproducing magnetic head smaller than a light beam spot (14), information recorded on areas smaller than the light beam spot can be reproduced. A large reproduced output may be achieved by using a magneto-optical recording medium which has a soft magnetic material layer made of soft magnetic material provided between the substrate and the magnetic film.
摘要翻译：一种磁光记录/再现装置，其通过在磁光记录介质上照射恒定强度的光束来记录信息，同时通过记录磁头在其上施加磁场; 并且通过再现磁头再现记录的信息。磁光记录介质具有形成在透光性基板上的磁性膜，并且响应于要记录的信息，通过记录磁头施加的磁场反转。记录磁头和再现磁头一体地设置在单个磁芯上，以便容易地相对于彼此设置它们的位置。通过使再现磁头的磁芯端面小于光束点，可以再现记录在比光束点小的区域上的信息。可以通过使用具有由设置在基板和磁性膜之间的软磁材料制成的软磁性材料层的磁光记录介质来实现大的再现输出。

26. 发明公开

EP0340988A3 A memory card and an apparatus for processing the same 失效
标题翻译：一个记忆卡和一个处理它的装置
公开(公告)号：EP0340988A3
公开(公告)日：1991-06-26
申请号：EP89304302.6
申请日：1989-04-28
申请人： SHARP KABUSHIKI KAISHA
发明人： Miyake, Takahiro , Kobayashi, Shozo , Ohta, Kenji , Maeda, Shigemi , Ishikawa, Toshio
IPC分类号： G06K19/08
CPC分类号： G06K19/10
摘要： A memory card comprising a memory medium on which at least one of the record, reproduction and erasure of information can be conducted. The memory card further comprises an indicating means the state of which can be altered in accordance with the condition whether the memory medium is permitted or not to be subjected to at least one of the record, reproduce and erase of information. An apparatus for processing the memory card comprises a detection means for detecting the state of the indicating means.

27. 发明授权

EP0827143B1 Magneto-optical recording/reproducing device 失效
标题翻译：的磁光记录/再现设备
公开(公告)号：EP0827143B1
公开(公告)日：2003-03-19
申请号：EP97203052.2
申请日：1991-06-13
申请人： SHARP KABUSHIKI KAISHA
发明人： Ohta, Kenji , Takahashi, Akira , Muramatsu, Tetsurou , Yamamoto, Tatsushi , Ishikawa, Toshio
IPC分类号： G11B13/04 , G11B5/00 , G11B11/10 , G11B11/14
CPC分类号： G11B13/045 , G11B5/00 , G11B5/1278 , G11B5/1871 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021

28. 发明授权

EP0469931B2 Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus 失效
标题翻译：磁记录和再现装置的数据处理装置和磁带为
公开(公告)号：EP0469931B2
公开(公告)日：1999-02-03
申请号：EP91307146.0
申请日：1991-08-02
申请人： SHARP KABUSHIKI KAISHA
发明人： Ishikawa, Toshio , Terashima, Shigeo , Sasada, Taizo
IPC分类号： G11B23/18
CPC分类号： G11B15/087 , G11B5/0083 , G11B15/005 , G11B20/10 , G11B20/1202 , G11B27/107 , G11B27/3027 , G11B27/3063 , G11B2020/10592 , G11B2020/10888 , G11B2220/90 , G11B2220/913

29. 发明授权

EP0485235B1 A liquid crystal display apparatus 失效
公开(公告)号：EP0485235B1
公开(公告)日：1997-08-06
申请号：EP91310365.1
申请日：1991-11-08
申请人： SHARP KABUSHIKI KAISHA
发明人： Asada, Atsushi , Ishikawa, Toshio , Nakata, Yasuo , Yoshida, Yoshio , Kurata, Yukio
IPC分类号： G09F9/30 , G09F9/35 , G02B6/42
CPC分类号： G09F9/35 , G02B6/08 , G02F1/13336 , G02F1/133524

30. 发明公开

EP0461907A3 Magneto-optical recording/reproducing device 失效
标题翻译：磁光记录/再现设备
公开(公告)号：EP0461907A3
公开(公告)日：1994-01-05
申请号：EP91305374.0
申请日：1991-06-13
申请人： SHARP KABUSHIKI KAISHA
发明人： Ohta, Kenji , Takahashi, Akira , Muramatsu, Tetsurou , Yamamoto, Tatsushi , Ishikawa, Toshio
IPC分类号： G11B11/10
CPC分类号： G11B13/045 , G11B5/00 , G11B5/1278 , G11B5/1871 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A device which records information by irradiating a light beam (1) of constant intensity on a magneto-optical recording medium (13) while simultaneously applying a magnetic field (8) thereon through a recording magnetic head (5); and which reproduces the recorded information through a reproducing magnetic head (7). The magneto-optical recording medium (13) has a magnetic film (4) formed on a translucent substrate (3) and the magnetic field (8) applied through the recording magnetic head (5) reverses in response to the information to be recorded. The recording magnetic head (5) and the reproducing magnetic head (7) are integrally provided on a single magnetic core (10) in order to set their positions easily with respect to each other. By making a magnetic core end-face (12) of the reproducing magnetic head smaller than a light beam spot (14), information recorded on areas smaller than the light beam spot can be reproduced. A large reproduced output may be achieved by using a magneto-optical recording medium which has a soft magnetic material layer made of soft magnetic material provided between the substrate and the magnetic film.
摘要翻译：一种通过在磁光记录介质（13）上照射恒定强度的光束（1）同时通过记录磁头（5）在其上施加磁场（8）而记录信息的装置; 并通过再现磁头（7）再现记录的信息。磁光记录介质（13）具有形成在半透明衬底（3）上的磁性膜（4），并且通过记录磁头（5）施加的磁场（8）响应于要记录的信息而反转。记录磁头（5）和再现磁头（7）整体地设置在单个磁芯（10）上，以便容易地相对于彼此设置它们的位置。通过使再现磁头的磁芯端面（12）小于光束点（14），可以再现记录在小于光束点的区域上的信息。通过使用磁光记录介质可以实现大的再现输出，该磁光记录介质具有设置在基底和磁膜之间的由软磁材料制成的软磁材料层。

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