公开(公告)号：EP1256950A1

公开(公告)日：2002-11-13

申请号：EP00985905.9

申请日：2000-12-26

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： YOSHIDA, Shuichi ,  OKADA, Takanori ,  KUNO, Yoshiki ,  KOMENO, Jyun-Ichi ,  KOUDO, Toshikazu ,  SHIMIZU, Ryosuke ,  KUBO, Noriaki

IPC: G11B20/10 ,  G11B20/12 ,  G06F17/60 ,  G06F3/06 ,  H04N5/91 ,  H04L9/00

CPC classification number: G11B20/0021 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/00246 ,  G11B20/00492 ,  G11B20/00666 ,  G11B20/0071 ,  G11B20/00746 ,  G11B20/00768 ,  G11B20/0084 ,  G11B20/10 ,  G11B20/12 ,  G11B2220/2516 ,  H04N5/765 ,  H04N5/781 ,  H04N5/85 ,  H04N5/913 ,  H04N7/163 ,  H04N7/1675 ,  H04N9/8042 ,  H04N21/4147 ,  H04N21/42661 ,  H04N21/4334 ,  H04N21/43622 ,  H04N21/4405 ,  H04N21/4623 ,  H04N2005/91307 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91364

Abstract: In the case that data such as AV data is recorded in a recording apparatus and/or in the case that data is reproduced by a reproduction apparatus, there is no concrete mechanism that protects copyright.
An encryption means 11 for encrypting AV data sent from an interface 4, a control means 14 for controlling the encrypted AV data to be recorded and a recording means 15 controlled by the control means 14 for recording the encrypted AV data in a magnetic disk are provided such that the control means 14 controls the recorded data to be reproduced, the recording means 15 is controlled by the control means 14 so as to reproduce the data recorded on the disk and a decryption means 12 decrypts the reproduced data that is sent to the interface.

Abstract translation: 在诸如AV数据的数据被记录在记录装置中和/或在再现装置再现数据的情况下，没有保护版权的具体机制。 提供一种用于加密从接口4发送的AV数据的加密装置11，用于控制要记录的加密AV数据的控制装置14和由用于将加密的AV数据记录在磁盘中的控制装置14控制的记录装置15 使得控制装置14控制要再现的记录数据，记录装置15由控制装置14控制，以便再现记录在盘上的数据，并且解密装置12对发送到接口的再现数据进行解密 。

公开(公告)号：EP1073043A1

公开(公告)日：2001-01-31

申请号：EP00904053.6

申请日：2000-02-21

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： UMEDA, Yoshio ,  SHIMIZU, Ryosuke ,  YOSHIDA, Syuichi ,  ISHIDA, Tatsuaki ,  TOHMA, Kiyokazu ,  MIYATA, Keizo

IPC: G11B5/86 ,  G11B21/10

CPC classification number: G11B5/865 ,  G11B5/012 ,  G11B5/5521 ,  G11B5/59655 ,  G11B5/82 ,  G11B21/083 ,  G11B21/10 ,  G11B21/106

Abstract: A magnetic disk apparatus has: a head 2 that performs data recording and playback while moving relative to a magnetic disk 26 rotating at the prescribed speed;an actuator 3 that positions said head relative to said magnetic disk 26; and a controller 4 that detects the position of said head by means of servo sector that have positioning information recorded magnetically on said magnetic disk 1 and performs control to position said actuator 3 by means of this detection signal, wherein said magnetic disk 1 has at least a part in which the arrangement of tracks having at least said servo sectors is spiral.

Abstract translation: 磁盘装置具有：头部2，其在相对于以规定速度旋转的磁盘26移动的同时执行数据记录和重放;致动器3，其将所述磁头相对于所述磁盘26定位; 以及控制器4，其通过伺服扇区检测具有磁性记录在磁盘1上的定位信息的所述磁头的位置，并通过该检测信号执行控制以定位所述致动器3，其中所述磁盘1至少具有 其中具有至少所述伺服扇区的轨道的排列是螺旋的部分。