-
公开(公告)号：US4984100A
公开(公告)日：1991-01-08
申请号：US380199
申请日：1989-07-14
申请人： Norikazu Takayama , Nobuyoshi Ushijima , Tetsuzo Kobashi , Masahiko Sato , Yoshihiko Yano , Jun Isozaki , Kousuke Fujii , Yoshinobu Kudoh
发明人： Norikazu Takayama , Nobuyoshi Ushijima , Tetsuzo Kobashi , Masahiko Sato , Yoshihiko Yano , Jun Isozaki , Kousuke Fujii , Yoshinobu Kudoh
CPC分类号： G11B5/59655 , G11B20/1426 , G11B27/3027
摘要： A method of forming servo information in a magnetic disk apparatus of a sector servo system. Servo information is recorded in advance at the beginning of each of the sectors, and includes a DC erase signal, a track address signal and a burst signal. The track address signal indicates on which track of the magnetic disk the sector is located, and is formed by expressing the track address in Gray code and interleaving a dummy code into the Gray code. Servo information is recorded using an NRZI system or an RLL coding method. Servo information in which the dummy code is interleaved is decoded after the dummy code is removed at the time of demodulation.
摘要翻译： 一种在扇区伺服系统的磁盘装置中形成伺服信息的方法。 伺服信息预先记录在每个扇区的开始处，并且包括DC擦除信号，轨道地址信号和突发信号。 轨道地址信号指示扇区所在的磁盘的哪个磁道，并且通过以格雷码表示轨道地址并将伪码交织到格雷码中而形成。 使用NRZI系统或RLL编码方法记录伺服信息。 在解调时，在伪码被去除之后，对其中交织了伪码的伺服信息进行解码。
-
公开(公告)号：US5189577A
公开(公告)日：1993-02-23
申请号：US669003
申请日：1991-03-13
申请人： Hiroshi Nishida , Tatsuya Ishigaki , Atsushi Ito , Yoshinobu Kudou , Hiroshi Katou , Kousuke Fujii
发明人： Hiroshi Nishida , Tatsuya Ishigaki , Atsushi Ito , Yoshinobu Kudou , Hiroshi Katou , Kousuke Fujii
CPC分类号： G11B33/121 , G11B25/043 , G11B5/4813 , G11B5/4886
摘要： A magnetic disk apparatus has a base member and a cover mounted on the base member to form an enclosure having at least six magnetic disks rotatably supported therein. First and second transducers are included for writing information on and reading information from upper and lower surfaces of adjacent ones of the magnetic disks. The transducers are supported by leaf springs in close proximity to both surfaces of adjacent ones of the magnetic disks. The leaf springs extend in a radial direction with respect to the magnetic disks and are supported on one end by a plurality of head arms. The leaf springs are arranged substantially within the same plane parallel to the magnetic disks so they do not overlie one another. A voice coil motor is provided for moving the head arms in order to position the transducer pairs in predetermined positions. A circuit board is included for controlling the magnetic disk apparatus.
摘要翻译： 磁盘装置具有安装在基座部件上的底座部件和盖子，以形成具有可旋转地支撑在其中的至少六个磁盘的外壳。 包括第一和第二换能器，用于在相邻的磁盘的上表面和下表面上写入信息并从中读取信息。 传感器由靠近相邻磁盘的两个表面的板簧支撑。 板簧相对于磁盘在径向方向上延伸，并且通过多个头臂在一端支撑。 板簧基本上在平行于磁盘的同一平面内布置，使得它们不会彼此叠置。 提供音圈电机用于移动头臂以将换能器对定位在预定位置。 包括用于控制磁盘装置的电路板。
-
公开(公告)号：US5027242A
公开(公告)日：1991-06-25
申请号：US446788
申请日：1989-12-06
申请人： Hiroshi Nishida , Tatsuya Ishigaki , Atsushi Ito , Yoshinobu Kudou , Hiroshi Katou , Kousuke Fujii
发明人： Hiroshi Nishida , Tatsuya Ishigaki , Atsushi Ito , Yoshinobu Kudou , Hiroshi Katou , Kousuke Fujii
CPC分类号： G11B33/121 , G11B25/043 , G11B5/4813 , G11B5/4886
摘要： A magnetic disk apparatus has a base member and a cover mounted on the base member to form an enclosure having at least six magnetic disks rotatably supported therein. First and second transducers are included for writing information on and reading information from upper and lower surfaces of adjacent ones of the magnetic disks. The transducers are supported by leaf springs in close proximity to both surfaces of adjacent ones of the magnetic disks. The leaf springs extend in a radial direction with respect to the magnetic disks and are supported on one end by a plurality of head arms. The leaf springs are arranged substantially within the same plane parallel to the magnetic disks so they do not overlie one another. A voice coil motor is provided for moving the head arms in order to position the transducer pairs in predetermined positions. A circuit board is included for controlling the magnetic disk apparatus.
摘要翻译： 磁盘装置具有安装在基座部件上的底座部件和盖子，以形成具有可旋转地支撑在其中的至少六个磁盘的外壳。 包括第一和第二换能器，用于在相邻的磁盘的上表面和下表面上写入信息并从中读取信息。 传感器由靠近相邻磁盘的两个表面的板簧支撑。 板簧相对于磁盘在径向方向上延伸，并且通过多个头臂在一端支撑。 板簧基本上在平行于磁盘的同一平面内布置，使得它们不会彼此叠置。 提供音圈电机用于移动头臂以将换能器对定位在预定位置。 包括用于控制磁盘装置的电路板。
-
-
搜索结果
3 条记录 (耗时 0.062 秒)