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51. 发明授权

EP0439278B1 Method and apparatus for recording data transitions 失效
标题翻译：用于记录数据的转换方法和装置。
公开(公告)号：EP0439278B1
公开(公告)日：1995-03-29
申请号：EP91300354.7
申请日：1991-01-17
申请人： International Business Machines Corporation
发明人： Best, John Stewart , Hetzler, Steven Robert , Kabelac, William John , Thompson, David Allen
IPC分类号： G11B21/10 , G11B5/596 , G11B5/584
CPC分类号： G11B20/1201 , G11B5/584 , G11B5/59633 , G11B21/10 , G11B2020/1255 , G11B2020/1282 , G11B2220/2508 , G11B2220/90
摘要： A method and means is described for writing data on a recording medium, such as a disk or tape, containing servo samples in such manner that the number of servo samples is increased with a minimal increase in overhead (non-data) regions. The tracks on the medium are divided into a plurality of maxi sections, each of which contains all fields with servo and associated overhead information and also a data field. At least one micro servo section containing only a portion of said information is located within each data field. As each micro servo section passes by an associated recording head, writing and reading of data is temporarily interrupted, but resumed when the micro servo section moves beyond the head, in such manner as to require minimal resynchronisation of said data during reading. Using a phase continuous clock, data is written in both portions of a data field to either side of each micro servo section in one pass of the disk or tape relative to the head. The micro servo sections contain no timing reference address mark and require no data encoder/decoder flush or synchronisation byte to resume reading in the portion of the data field following each micro servo section.

52. 发明授权

EP0459732B1 Apparatus and methods for recording information signals and tracking signals on magnetic tape 失效
标题翻译：装置和用于记录信息和在磁带上的跟踪信号的方法。
公开(公告)号：EP0459732B1
公开(公告)日：1995-03-08
申请号：EP91304762.7
申请日：1991-05-24
申请人： SONY CORPORATION
发明人： Yanagihara, Naofumi, Patents Division
IPC分类号： H04N5/782 , G11B21/10
CPC分类号： H04N5/7826 , G11B5/0086 , G11B5/00878 , G11B5/588

53. 发明授权

EP0399513B1 Pit pattern detecting method 失效
标题翻译：一种用于检测信息坑模式的方法。
公开(公告)号：EP0399513B1
公开(公告)日：1995-01-18
申请号：EP90109839.2
申请日：1990-05-23
申请人： SONY CORPORATION
发明人： Tobita, Minoru
IPC分类号： G11B21/08 , G11B21/10 , G11B20/12
CPC分类号： G11B7/0901 , G11B7/005 , G11B7/00745 , G11B7/0938 , G11B20/1217 , G11B21/083 , G11B27/19 , G11B27/3027 , G11B2220/20 , G11B2220/2525 , G11B2220/2537 , H04L7/08
摘要： A recording and/or reproducing apparatus includes a detection unit for detecting a tracking error detecting pit pattern or a sector mark from a detection signal from an optical head adapted to record and/or reproduce data signals on or from an optical disk, on which tracking error detecting pits or sector marks are accorded with a predetermined offset from the center of the recording track. The detection unit is adapted for detecting the tracking detecting pit pattern or the sector mark on the basis of the bit data pattern and the amplitude pattern of the detection signal from an optical head.

54. 发明公开

EP0559494A3 Crosstalk detecting apparatus 失效
公开(公告)号：EP0559494A3
公开(公告)日：1994-12-07
申请号：EP93301694.1
申请日：1993-03-05
申请人： PIONEER ELECTRONIC CORPORATION
发明人： Okuda, Yoshiyuki, c/o Pioneer Tokorozawa Plant
IPC分类号： G11B5/596 , G11B21/10
CPC分类号： G11B20/22 , G11B7/14 , G11B20/06 , G11B21/10 , H04N5/85 , H04N5/93
摘要： This invention relates to a crosstalk detecting apparatus for detecting crosstalk which possibly occurs when reading an image signal which has been FM-modulated and recorded on a recording medium, and more specifically, a crosstalk detecting apparatus which derives an amount of crosstalk from an adjacent track based on a signal read by a pickup in a simple construction. The cross-talk detecting apparatus according to the present invention is adapted to detect crosstalk during a period in which an identification signal recorded on a medium is being read therefrom, and comprises an FM-demodulator (1) for demodulating a signal read from the medium, an AM-demodulator (2) for reading the signal read from the medium, a multiplier circuit (4) for multiplying a signal outputted from the FM-demodulator (1) with a signal outputted from the AM-demodulator (3) and an averaging circuit (6) for averaging output values of the multiplier circuit (4).

55. 发明授权

EP0257974B1 Video signal recording and/or reproducing apparatus 失效
标题翻译：装置用于在视频信号的记录和/或再现。
公开(公告)号：EP0257974B1
公开(公告)日：1994-11-02
申请号：EP87307328.2
申请日：1987-08-19
申请人： SONY CORPORATION
发明人： Nemoto, Shoji Pat. Div. , Machida, Yukihiko Pat. Div.
IPC分类号： G11B5/588 , G11B21/10
CPC分类号： G11B15/4678 , G11B5/588

56. 发明授权

EP0383377B1 Arrangement for reproducing an electric signal 失效
标题翻译：排列用于再现的电信号。
公开(公告)号：EP0383377B1
公开(公告)日：1994-09-28
申请号：EP90200267.4
申请日：1990-02-07
申请人： Philips Electronics N.V.
发明人： Kahlman, Josephus Arnoldus Henricus Maria
IPC分类号： G11B21/10
CPC分类号： G11B5/588 , G11B7/0946 , G11B15/463 , G11B15/4675 , G11B21/103

57. 发明授权

EP0235592B1 Electron beam recording and reproducing apparatus 失效
标题翻译：电子束记录和再现装置。
公开(公告)号：EP0235592B1
公开(公告)日：1994-06-01
申请号：EP87101367.8
申请日：1987-02-02
申请人： HITACHI, LTD.
发明人： Hosoki, Shigeyuki , Takata, Keiji , Aida, Toshiyuki , Hosaka, Sumio
IPC分类号： G11B9/10 , G11B21/10
CPC分类号： G11B9/10 , G11B11/03 , G11B11/08

58. 发明公开

EP0559493A2 Crosstalk detecting apparatus 失效
标题翻译： Übersprechungsbestimmungsgerät。
公开(公告)号：EP0559493A2
公开(公告)日：1993-09-08
申请号：EP93301693.3
申请日：1993-03-05
申请人： PIONEER ELECTRONIC CORPORATION
发明人： Okuda, Yoshiyuki, c/o Pioneer Tokorozawa Plant
IPC分类号： G11B5/596 , G11B21/10
CPC分类号： G11B20/06 , G11B7/0901 , G11B7/0956 , G11B20/22 , G11B21/085 , G11B27/3009
摘要： This invention relates to a crosstalk detecting apparatus for detecting crosstalk which may occur upon reading an FM-modulated signal recorded on a recording medium. This crosstalk detecting apparatus outputs a crosstalk amount from an adjacent track based on a signal read by a pickup. On a medium from which this crosstalk detecting apparatus can detect crosstalk, an image signal and an identification signal are FM-modulated and recorded on each of three tracks adjacent to one another, and the FM-modulated identification signal is recorded on each of the three tracks such that initial phases of the FM-modulated identification signals are all made equal. Also, the crosstalk detecting apparatus comprises a timing pulse generator (3) for generating a pulse at a predetermined time within the identification signal period; a phase detecting means (4) for detecting the phase difference between the signal read from the central track and a crosstalk-free signal; and a sampling circuit (5) for sampling the output from the phase detecting means (4) when a timing pulse is generated by the timing pulse generator (3).
摘要翻译：本发明涉及一种用于检测在读取记录在记录介质上的FM调制信号时可能发生的串扰的串扰检测装置。该串扰检测装置基于由拾取器读取的信号从相邻的轨道输出串扰量。在该串扰检测装置能够检测到串扰的介质上，图像信号和识别信号被FM调制并记录在彼此相邻的三个磁道中的每一个上，并且FM调制识别信号被记录在三个使FM调制识别信号的初始相位都相等的轨迹。此外，串扰检测装置还包括定时脉冲发生器（3），用于在识别信号周期内的预定时间产生脉冲; 相位检测装置（4），用于检测从中心轨道读取的信号与无串扰信号之间的相位差; 以及用于当定时脉冲发生器（3）产生定时脉冲时对来自相位检测装置（4）的输出进行采样的采样电路（5）。

59. 发明授权

EP0327207B1 A method of writing a sector servo pattern for a record disk storage device 失效
标题翻译：用于记录磁盘存储设备的部分服务器模式的方法
公开(公告)号：EP0327207B1
公开(公告)日：1993-07-14
申请号：EP89300285.7
申请日：1989-01-12
申请人： International Business Machines Corporation
发明人： Mine, Shingi , Miwa, Yoichi , Ono, Hiroyuki
IPC分类号： G11B21/10
CPC分类号： G11B21/085 , G11B21/106

60. 发明授权

EP0259039B1 Magnetic disc apparatus 失效
标题翻译：磁碟设备
公开(公告)号：EP0259039B1
公开(公告)日：1993-02-24
申请号：EP87307171.6
申请日：1987-08-13
申请人： SONY CORPORATION
发明人： Hoshimi, Susumu c/o Patent Division , Muto, Takayasu c/o Patent Division
IPC分类号： G11B5/596 , G11B21/10 , G11B5/55
CPC分类号： G11B5/59627

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