公开(公告)号：US5068144A

公开(公告)日：1991-11-26

申请号：US596760

申请日：1990-10-01

申请人： Osamu Kitakami ,  Hideo Fujiwara ,  Kiyotaka Ojima ,  Youichi Ogawa ,  Kunio Wakai

发明人： Osamu Kitakami ,  Hideo Fujiwara ,  Kiyotaka Ojima ,  Youichi Ogawa ,  Kunio Wakai

IPC分类号： G11B5/70 ,  C09D5/23 ,  C09D7/12 ,  G11B5/64 ,  G11B5/65 ,  G11B5/702 ,  G11B5/706 ,  G11B5/73 ,  G11B5/848 ,  G11B5/85

CPC分类号： G11B5/7026 ,  G11B5/848 ,  G11B5/85 ,  Y10S428/90 ,  Y10T428/25

摘要： A perpendicular magnetic recording medium comprising a non-magnetic substrate and a magnetic layer which is formed on at least one surface of the substrate and comprises acicular particles of ferromagnetic metal oriented perpendicularly to a plane of the layer and an organic polymer filled in spaces between the acicular particles so as to surround the acicular particules, wherein a volume content of the organic polymer is about 5 to 55% by volume of the whole volume of the magnetic layer, which medium has not only good recording and reproducing characteristics but also improved durability.

摘要翻译： 一种包括非磁性基底和磁性层的垂直磁记录介质，所述磁性层形成在所述基底的至少一个表面上，并且包括垂直于所述层的平面取向的强磁性金属的针状颗粒和填充在所述层之间的空间中的有机聚合物 针状粒子包围针状粒子，其中有机聚合物的体积含量为磁性层总体积的约5-55体积％，该介质不仅具有良好的记录和再现特性，而且具有改善的耐久性。

公开(公告)号：US4829502A

公开(公告)日：1989-05-09

申请号：US81441

申请日：1987-08-04

申请人： Yoshiro Aoyagi ,  Toshiyuki Kimura ,  Susumu Niinuma ,  Minoru Yoshioka ,  Fumihiko Yokogawa ,  Keiichi Matsumoto ,  Akira Haeno ,  Takashi Sato ,  Yoshiro Nishi ,  Yoshihiko Watanabe ,  Hiroyuki Hirano ,  Youichi Ogawa

发明人： Yoshiro Aoyagi ,  Toshiyuki Kimura ,  Susumu Niinuma ,  Minoru Yoshioka ,  Fumihiko Yokogawa ,  Keiichi Matsumoto ,  Akira Haeno ,  Takashi Sato ,  Yoshiro Nishi ,  Yoshihiko Watanabe ,  Hiroyuki Hirano ,  Youichi Ogawa

IPC分类号： G11B7/0037 ,  G11B7/085 ,  G11B17/00 ,  G11B19/00 ,  G11B19/04 ,  G11B21/02 ,  G11B27/10 ,  G11B33/08 ,  G11B33/10 ,  G11B33/14

CPC分类号： G11B19/00 ,  G11B17/00 ,  G11B19/04 ,  G11B21/02 ,  G11B27/105 ,  G11B33/08 ,  G11B33/10 ,  G11B33/14 ,  G11B7/0037 ,  G11B7/08547

摘要： An automatic disc player including a housing, disc carrier means to convey a disc between predetermined playback position and a predetermined withdrawal position ready to be withdrawn out of the housing upon termination of plaback operation, signal generating means for producing control signals to be predominant over various steps of the playback operation, and an electric control circuit responsive to the control signals to control the various steps of the playback operation, the signal generating means comprising position detecting means responsive to movement of the disc to the withdrawal position and operative to produce a signal when the disc being moved away from the playback position reaches the withdrawal position, and playback re-start switch means which is operative to produce a signal in response to slight movement of the disc from the withdrawal position toward the playback position, the control signals to be produced by the signal generating means including signals to control the start of playback operation. The position detecting means and the playback re-start switch means are connected in series with between ground and the control circuit, and the signals to control the start of playback operation include the signal from the playback re-start switch means.

摘要翻译： 一种自动盘片播放器，包括一个外壳，盘片承载装置，用于在预定播放位置和一个预定的撤销位置之间传送一个盘片，准备在平板打印操作终止时将其从外壳中取出;信号发生装置，用于产生控制信号， 重放操作的步骤，以及响应于控制信号来控制重放操作的各种步骤的电气控制电路，信号产生装置包括位置检测装置，其响应于盘的移动到撤回位置并且可操作以产生信号 当光盘离开播放位置移动到达取出位置时，以及播放重启开关装置，其响应于从取出位置向重放位置的轻微移动而产生信号，控制信号到 由信号产生装置产生，包括信号 rol开始播放操作。 位置检测装置和重放重启开关装置与接地和控制电路串联连接，控制重放操作开始的信号包括来自重放重启开关装置的信号。

公开(公告)号：US4540897A

公开(公告)日：1985-09-10

申请号：US507645

申请日：1983-06-27

申请人： Saburo Takaoka ,  Ryuichi Naito ,  Fumihiko Yokogawa ,  Youichi Ogawa

发明人： Saburo Takaoka ,  Ryuichi Naito ,  Fumihiko Yokogawa ,  Youichi Ogawa

IPC分类号： G11B20/14 ,  G11B5/09 ,  G11B20/10 ,  H03K5/08 ,  H04L25/03 ,  H04L27/00 ,  H04L27/14

CPC分类号： G11B20/10009 ,  G11B20/10527

摘要： A data reading device for reading out data modulated according to a system wherein the time ratio of low to high level signals is substantially unity employs a time ratio detector and an intermediate level detector. A comparator compares the reproduced output level with a synthesized signal which may represent a combination of the outputs of the time ratio detector and the intermediate level detector.

摘要翻译： 一种用于读出根据其中低电平信号的时间比基本上为单位的系统调制的数据的数据读取装置，其使用时间比率检测器和中间电平检测器。 比较器将再现的输出电平与可以表示时间比率检测器和中间电平检测器的输出的组合的合成信号进行比较。