公开(公告)号：US5513165A

公开(公告)日：1996-04-30

申请号：US149931

申请日：1993-11-10

申请人： Hiroshi Ide ,  Fumiyoshi Kirino ,  Tsuyashi Toda ,  Takeshi Maeda ,  Hiroyuki Tsuchinaga ,  Fumio Kugiya ,  Kazuo Shigematsu ,  Seiichi Mita ,  Atsushi Saito ,  Toshimitsu Kaku

发明人： Hiroshi Ide ,  Fumiyoshi Kirino ,  Tsuyashi Toda ,  Takeshi Maeda ,  Hiroyuki Tsuchinaga ,  Fumio Kugiya ,  Kazuo Shigematsu ,  Seiichi Mita ,  Atsushi Saito ,  Toshimitsu Kaku

IPC分类号： G11B7/0045 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00 ,  G11B7/12

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B20/10009 ,  G11B20/10212 ,  G11B20/1816 ,  G11B7/0045 ,  G11B11/10506 ,  G11B20/1258 ,  G11B7/013 ,  G11B7/24085

摘要： An optical recording control method determines an optimum recording laser power by effecting a test recording before information to be recorded is recorded on a disk. The recording laser power is formed of a plurality of powers. A relationship among the plurality of laser powers is regulated by power level ratios between respective powers, whereby a power used when a laser light is radiated on the disk can be controlled to be constant independent of an ambient temperature and a structure of a disk. Therefore, accurate recording marks can be formed on the disk.

摘要翻译： 光记录控制方法通过在待记录信息记录在盘上之前进行测试记录来确定最佳记录激光功率。 记录激光功率由多个功率形成。 多个激光功率之间的关系由各个功率之间的功率电平比来调节，由此当激光照射在盘上时使用的功率可以被控制为与环境温度和盘的结构无关地恒定。 因此，可以在盘上形成准确的记录标记。

公开(公告)号：US5420846A

公开(公告)日：1995-05-30

申请号：US021907

申请日：1993-02-23

申请人： Hisataka Sugiyama ,  Akira Arimoto ,  Motoyasu Terao ,  Norio Murase ,  Kimio Tatsuno ,  Masahiko Takahashi ,  Fumiyoshi Kirino ,  Fumio Kugiya

发明人： Hisataka Sugiyama ,  Akira Arimoto ,  Motoyasu Terao ,  Norio Murase ,  Kimio Tatsuno ,  Masahiko Takahashi ,  Fumiyoshi Kirino ,  Fumio Kugiya

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/085 ,  G11B7/24 ,  G11B7/257 ,  G11B7/00 ,  G11B15/087

CPC分类号： G11B7/24 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/08505 ,  G11B7/257 ,  G11B7/252

摘要： An information recording medium includes an information recording layer on which at least information is to be recorded by irradiating light, and a light transmission restricting layer which has a plurality of nonlinear transmission characteristics or nonlinear reflection characteristics for the intensity of the light irradiated and which has an optical material for restricting the transmission or reflection of the light according to the respective characteristics when the light is irradiated onto the information recording layer. An information recording and reproducing unit uses the information recording medium and includes an information recording position setting unit for deciding a position at which information is to be recorded on the information recording medium by detecting a direction of an easy magnetization axis. With the above arrangement, the spot diameter of the light can be distinguished between the one when information is reproduced and the one when information is recorded on the information recording medium respectively, to thereby ensure an accurate positioning of the head on the tracks of the recording medium.

摘要翻译： 信息记录介质包括至少要通过照射光记录信息的信息记录层，以及具有多个非线性传输特性或非线性反射特性的光传输限制层，用于所照射的光的强度， 光学材料，用于当光照射到信息记录层上时，根据各自的特性来限制光的透射或反射。 信息记录和再现单元使用信息记录介质，并且包括信息记录位置设置单元，用于通过检测易磁化轴的方向来确定要在信息记录介质上记录信息的位置。 通过上述配置，当信息被再现时，光的光点直径可以区别于信息记录介质上的信息的一个，从而确保头在记录的轨道上的准确定位 中。

公开(公告)号：US5848045A

公开(公告)日：1998-12-08

申请号：US968526

申请日：1997-11-12

申请人： Fumiyoshi Kirino ,  Tsuyoshi Toda ,  Hiroshi Ide ,  Hisataka Sugiyama ,  Atsushi Saito ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Yasuhide Ouchi

发明人： Fumiyoshi Kirino ,  Tsuyoshi Toda ,  Hiroshi Ide ,  Hisataka Sugiyama ,  Atsushi Saito ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Yasuhide Ouchi

IPC分类号： G11B7/0045 ,  G11B7/095 ,  G11B7/125 ,  G11B11/105 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B7/0045 ,  G11B7/0956 ,  G11B20/1258 ,  G11B20/182

摘要： A super high density optical disk apparatus is obtained by using an exchangeable recording medium having a recording capacity of at least 1.5 Gb/in.sup.2 in an optical recording and reading apparatus for recording or reading at least using a laser beam or by using one of means which can record on a recording medium only once and means which can record at least two times repeatedly as recording means to be used.

摘要翻译： 通过在至少使用激光束进行记录或读取的光学记录和读取装置中使用具有至少1.5Gb / in2的记录容量的可交换记录介质来获得超高密度光盘装置，或者通过使用 可以在记录介质上记录一次，并且可以重复记录至少两次作为要使用的记录装置的装置。

公开(公告)号：US5463600A

公开(公告)日：1995-10-31

申请号：US225315

申请日：1994-04-08

申请人： Fumiyoshi Kirino ,  Atsushi Saito ,  Tsuyoshi Toda ,  Hiroshi Ide ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya

发明人： Fumiyoshi Kirino ,  Atsushi Saito ,  Tsuyoshi Toda ,  Hiroshi Ide ,  Hiroyuki Tsuchinaga ,  Takeshi Maeda ,  Fumio Kugiya

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B20/12 ,  G11C13/06 ,  G11B13/04

CPC分类号： G11B11/10506 ,  G11B11/10595 ,  G11C13/06

摘要： A magneto-optical disk system includes a magneto-optical disk and a disk drive. The magneto-optical disk drives provides a function of controlling the shape of a recorded domain by using a short wavelength laser beam and a test recording and a function of recording a using a pulse train. The magneto-optical disk has a laminated layer structure capable of obtaining a high S/N ratio and stabilizing a heat conduction. The magneto-optical disk drive with the recorded domain shape control function using a short wavelength laser beam and a test recording and with the pulse train recording record function is organically coupled with the magneto-optical disk having the laminated layer structure with a stabilized heat conduction to make the disk and the disk drive have an integrity therebetween, providing a magneto-optical disk having a recording capacity four times as large as the first generation magneto-optical disk system.

摘要翻译： 磁光盘系统包括磁光盘和磁盘驱动器。 磁光盘驱动器通过使用短波长激光束和测试记录以及使用脉冲串记录功能来提供控制记录域的形状的功能。 磁光盘具有能够获得高S / N比并稳定热传导的叠层结构。 具有使用短波长激光束和测试记录并具有脉冲串记录记录功能的记录域形状控制功能的磁光盘驱动器与具有稳定的热传导的层叠层结构的磁光盘有机耦合 为了使盘和盘驱动器之间具有完整性，提供具有与第一代磁光盘系统相同的四倍的记录容量的磁光盘。