公开(公告)号：EP1087401A3

公开(公告)日：2003-04-09

申请号：EP00120106.0

申请日：2000-09-18

申请人： LG ELECTRONICS INC.

发明人： Lee, Hyo Jun

IPC分类号： G11B27/10 ,  G11B21/08 ,  G11B27/32 ,  G11B19/247

CPC分类号： G11B27/329 ,  G11B19/12 ,  G11B19/247 ,  G11B19/26 ,  G11B21/081 ,  G11B27/105 ,  G11B27/3063 ,  G11B2220/2545

摘要： Method for servo-controlling when a reproduction is requested to a multi-session disk for non-real-time data or real-time data of audio or video stream. This servo-control method using the information of table of contents reads information of a table of contents written in a disk when a data-requesting command is received from a connected host; distinguishes the type of data recorded in a target location based on the read information of the table of contents; checks whether the distinguished type is corresponding to the command type; and re-sets or maintains current parameters for servo-control operation if the distinguished type is matched to the received command, so that a servo-control mechanism is adjusted to the type of the requested data before a pickup starts to move to the target location. Therefore, this servo-control method using the information of table of contents enables a servo-control operation to be adjusted stably based on the type of data to be reproduced, and makes a quick response to a host without conducting any servo-control operation when a type-mismatched command is received. In addition, although a data block preceding target data blocks has a damaged sub-Q channel data, the present method can reproduce the target data because it does not access the preceding data block.

摘要翻译： 本实用新型涉及一种用于伺服控制的方法，用于当多个会话磁盘被请求用于非实时数据或音频或视频流的实时数据时进行再现。 当从连接的主机接收到数据请求命令时，使用内容信息的伺服控制方法读取写入盘中的目录的信息; 基于目录的读取信息，区分记录在目标位置中的数据的类型; 检查区分类型是否对应于命令类型; 并且如果识别类型与接收到的命令匹配，则重新设置或维护用于伺服控制操作的当前参数，使得在拾取开始移动到目标位置之前将伺服控制机构调整为所请求数据的类型 。 因此，使用目录信息的伺服控制方法能够基于要再现的数据类型稳定地调整伺服控制操作，并且在不进行任何伺服控制操作的情况下对主机进行快速响应， 接收到类型不匹配的命令。 此外，尽管目标数据块之前的数据块具有损坏的子Q信道数据，但是由于该方法不访问前面的数据块，所以本方法可以再现目标数据。

公开(公告)号：EP0795856A3

公开(公告)日：1999-12-22

申请号：EP97201605.9

申请日：1993-01-27

申请人： SONY CORPORATION

发明人： Mukawa, Hiroshi, Intellectual Property Division ,  Eto, Hiroshi, c/o Intellectual Property Division

IPC分类号： G11B11/10 ,  G11B17/04 ,  G11B19/12 ,  G11B21/08

CPC分类号： G11B17/046 ,  G11B11/10558 ,  G11B11/10597 ,  G11B19/12 ,  G11B21/081

摘要： Disc recording and/or reproducing apparatus comprising: an optical pickup unit (42) movable across the inner and outer peripheries of a disc (205, 214) on which information signals are pre- recorded or are to be recorded, a magnetic head (45) facing the optical pickup unit with the disc in-between to apply an external magnetic field to the disc; a disc loading section (30) to load a disc cartridge (201, 211) rotatably housing the disc; a cartridge holder (26) removably to hold the disc cartridge (201, 211) therein, the cartridge holder (26) being supported by the disc loading section (30) for movement in a direction of shifting the disc cartridge (201, 211) towards and away from the disc loading section (30), and a magnetic head supporting member (44) arranged for movement across the inner and outer peripheries of the disc (201, 211) loaded on the disc loading section (30) along with the optical pickup unit (42), the magnetic head supporting member (44) supporting the magnetic head (45) for movement between a first position in which the magnetic head (45) is proximate to the disc (201, 211) and a second position in which the magnetic head (45) is spaced apart from the disc (201, 211).

摘要翻译： 盘记录和/或再现装置包括一个光学拾取单元，可移动到盘的内周和外周，其中信息信号被预先记录或将被记录在其上，并且将激光束辐射在盘的记录表面上， 以及面向光学拾取单元的磁头，其中盘之间并且将外部磁场施加到盘。 盘记录和/或再现装置包括一个记录/再现部件，盒式盘将被装载在该记录/再现部分上，以及一个磁头支撑部件（44），该磁头支撑部件（44）在其远端上承载磁头并且其近端由支撑 轴（71）。 磁头支撑构件（44）支撑磁头，用于使光盘径向移动并朝向和远离光盘。 该装置还包括盘型检测臂（78），其具有由支撑轴（71）支撑的基端（83），支撑轴（71）支撑磁头支撑构件，以围绕支撑轴旋转并沿支撑轴轴向移动， 限制了围绕支撑轴（71）的磁头支撑构件（44）和盘型检测臂（78）之间的相对旋转的旋转限制构件（72,89），以及限制 盘型检测臂（78）相对于记录/再现部分沿着支撑轴的轴线的运动。 磁头支撑构件（44）的旋转位置由盘型检测臂（78）控制，该盘型指示部分（75）指示容纳在盘盒内的光盘是记录/再现类型还是再现 - 只有当磁盘是记录/再现型盘时，磁头才与光盘滑动接触。

公开(公告)号：EP0632453B1

公开(公告)日：1999-03-10

申请号：EP94401480.2

申请日：1994-06-29

申请人： LG ELECTRONICS INC.

发明人： Kim, Sang Youl, Dongshin Yeonrip A-201 ,  Lee, Chung Ku

IPC分类号： G11B27/10 ,  G11B19/02 ,  G11B21/08

CPC分类号： G11B27/34 ,  G11B15/026 ,  G11B15/087 ,  G11B15/093 ,  G11B15/442 ,  G11B19/02 ,  G11B19/04 ,  G11B19/12 ,  G11B19/14 ,  G11B21/081 ,  G11B27/105 ,  G11B27/107 ,  G11B27/11 ,  G11B2220/2545 ,  G11B2220/65 ,  G11B2220/90 ,  G11B2220/913 ,  G11B2220/93

公开(公告)号：EP0303377B1

公开(公告)日：1992-05-20

申请号：EP88307045.0

申请日：1988-07-29

申请人： CANON KABUSHIKI KAISHA

发明人： Ogasawara, Yutaka

IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B20/12 ,  G11B7/26

CPC分类号： G11B7/0033 ,  G11B19/04 ,  G11B20/1879 ,  G11B21/081 ,  G11B27/3027 ,  G11B27/327 ,  G11B27/36 ,  G11B2020/10916

公开(公告)号：EP0469553A1

公开(公告)日：1992-02-05

申请号：EP91112804.9

申请日：1991-07-30

申请人： NEC CORPORATION

发明人： Tomimitsu, Yasuharu

IPC分类号： G11B7/085 ,  G11B7/08 ,  G11B7/09

CPC分类号： G06F3/0601 ,  G06F2003/0691 ,  G11B7/08505 ,  G11B20/10 ,  G11B21/081 ,  G11B27/105

摘要： A disk controller for a disk having spirally formed tracks comprises a buffer memory for temporarily storing write data to be recorded on said disk and read data derived from said disk, a first register for temporarily storing current sector information representative of a sector currently accessible, said current sector information being changed in accordance with rotation of said disk, a second register for temporarily storing target sector information representative of a sector from which a data read/write operation starts, comparator means for comparing said current sector information with said target sector information to produce a comparison output signal taking an active level when said current sector information coincides with said target sector information, means for producing a ready signal taking an active level when said write data is stored in said buffer memory or when said buffer memory has a vacancy for accepting said read data, and control means responsive to said comparison output signal and said ready signal for generating a jump back signal when said ready signal is at an inactive level at a time when said comparison output signal takes said active level, said control means further generating, after said comparison signal takes said active level, said jump back signal when said ready signal is at said inactive level at a time when said current sector information changes.

摘要翻译： 一种用于具有螺旋形轨道的磁盘的磁盘控制器，包括用于临时存储要记录在所述磁盘上的写数据并读取从所述磁盘导出的数据的缓冲存储器，用于临时存储当前扇区信息的第一寄存器，所述第一寄存器表示当前可访问的扇区， 当前扇区信息根据所述盘的旋转而改变，第二寄存器用于临时存储表示数据读/写操作开始的扇区的目标扇区信息，用于将所述当前扇区信息与所述目标扇区信息进行比较的比较器装置 当所述当前扇区信息与所述目标扇区信息一致时，产生一个比较输出信号，该比较输出信号占据一个有效电平;当所述写入数据存储在所述缓冲存储器中时产生一个有效电平的准备信号的装置，或者当所述缓冲存储器具有 接受所述读取数据，以及响应于所述comp的控制装置 当所述比较输出信号采用所述有效电平时，当所述就绪信号处于非活动电平时，所述准备信号用于产生跳回信号，所述控制装置在所述比较信号采取所述有效电平之后进一步产生， 当所述当前扇区信息改变时，当所述就绪信号处于所述非活动电平时，所述跳转信号。

公开(公告)号：EP0155817B1

公开(公告)日：1991-08-14

申请号：EP85301749.9

申请日：1985-03-13

申请人： Irwin Magnetic Systems, Inc.

发明人： Chambors, John Michael ,  Lum, Francis

IPC分类号： G11B5/584

CPC分类号： G11B21/081 ,  G11B5/5543 ,  G11B5/584 ,  G11B5/59633 ,  G11B21/103 ,  G11B27/3027 ,  G11B2220/90 ,  G11B2220/95

公开(公告)号：EP0396285A3

公开(公告)日：1991-07-31

申请号：EP90304239.8

申请日：1990-04-20

申请人： SONY CORPORATION

发明人： Yonemitsu, Jun, c/o Sony Corporation ,  Yagasaki, Yoichi, c/o Sony Corporation

IPC分类号： H04N5/92 ,  H04N7/137

CPC分类号： H04N19/503 ,  G11B21/081 ,  G11B27/005 ,  G11B27/034 ,  G11B27/105 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/213 ,  G11B2220/2545 ,  H04N5/783 ,  H04N5/85 ,  H04N5/9261 ,  H04N5/9262 ,  H04N5/9264

摘要： Image data is recorded in successive turns on a rotatable record medium driven at substantially constant linear velocity by converting a first of successive image frames of image data to an intraframe code signal, converting the (n-1) next-following frames to (n-1) interframe code signals, and recording the intraframe and (n-1) interframe code signals on the record medium. In one embodiment, n is the maximum number of image frames that can be recorded in the innermost turn of the record medium and n is constant for all turns, whereby the same number (n-1) of interframe code signals separate successive intraframe code signals from turn to turn. In another embodiment, n is a variable and increases as the radius of the turn in which the code signals are recorded increases, whereby a larger number (n-1) of interframe code signals separate successive intraframe code signals as the turn radius increases. The recorded image data is recovered by reproducing the recorded intraframe and interframe code signals and selectively coupling the reproduced code signals to an intraframe decoder or to an interframe decoder as a function or whether intraframe or interframe code signals are reproduced.

公开(公告)号：EP0387104A1

公开(公告)日：1990-09-12

申请号：EP90302612.8

申请日：1990-03-12

申请人： Conner Peripherals, Inc.

发明人： Behr, Michael Isaac

IPC分类号： G11B5/584 ,  G11B5/596

CPC分类号： G11B5/584 ,  G11B5/5965 ,  G11B21/081 ,  G11B21/10

摘要： A data storage member (10) has a servo-information storage field (16), a first portion of the storage field having recorded thereon a plurality of first servo segments and a second portion of the storage field having recorded thereon a corresponding plurality of second servo segments, each of the first storage segments (26) being inclined with respect to a corresponding second storage segment (28) and at least substantially meeting or intersecting the said second storage segment, as seen from above the data storage member, at a fixed angle. In an alternative embodiment, tho first and second storage segments need not extend far enough actually to meet or to intersect, and in that case they may be buried within the data storage member below a user data storage field (20).

摘要翻译： 数据存储部件（10）具有伺服信息存储区域（16），存储区域的第一部分在其上记录有多个第一伺服区段，并且存储区域的第二部分在其上记录了相应的多个第二 伺服段，每个第一存储段（26）相对于对应的第二存储段（28）倾斜，并且至少基本上与所述第二存储段相交或相交，如从数据存储构件上方所看到的，固定 角度。 在替代实施例中，第一和第二存储段不需要实际扩展得足够远以满足或相交，并且在这种情况下，它们可能被埋在用户数据存储区（20）下方的数据存储构件内。

公开(公告)号：EP0231103A2

公开(公告)日：1987-08-05

申请号：EP87300563.1

申请日：1987-01-22

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Mizukami, Makoto ,  Mitamura, Akio ,  Arai, Ryoichi ,  Mitsuya, Yasunaga ,  Mikazuki, Tetsuo

IPC分类号： G11B21/08 ,  G11B5/55

CPC分类号： G11B5/5547 ,  G11B5/4886 ,  G11B5/5556 ,  G11B7/08505 ,  G11B21/00 ,  G11B21/081

摘要： A head positioning system particularly intended for a magnetic disk storage system has a magnetic recording medium (3) with a periodic arrangement of a data tracks (6) and a servo tracks (4, 5) with a track pitch P, a multi-head (1) carrying a plurality of head elements (H1-Hn) arranged in a direction perpendicular to the tracks. The length or spacing between the head elements and that of the tracks is similar to that of a sliding vernier caliper, so that only a small relative transverse movement is required to bring one of the heads into alignment with a particular track. In one embodiment, the spacing of the heads is (N h +1/M)P where N h and M are integers. One of the head elements (H1-Hn) is selected as a multi-head (1) moves transversely to the tracks so that the selected head is just on a servo track. The head element (H1-Hn) to form a data head for writing and/or reading data on and from the tracks is determined in accordance with the selected servo head. Thus, since a servo signal is continuously obtained from one of the head elements (H1-Hn) an accurate and quick head positioning is achieved.

公开(公告)号：EP0155817A3

公开(公告)日：1987-05-06

申请号：EP85301749

申请日：1985-03-13

申请人： Irwin Magnetic Systems, Inc.

发明人： Chambors, John Michael ,  Lum, Francis

IPC分类号： G11B05/584

CPC分类号： G11B21/081 ,  G11B5/5543 ,  G11B5/584 ,  G11B5/59633 ,  G11B21/103 ,  G11B27/3027 ,  G11B2220/90 ,  G11B2220/95

摘要： A method of initializing a data-recording media (10), particularly tape, by use of the same type of media drive used for data-recording purposes, in which the edge (42) of the recordable field on the media (10) is first located by a test read / write process and the media is then transported in a succession of passes across a transducing head (62), during each of which the head is periodically and selectively energized to write spaced marker bursts (46) and servo-positioning bursts (36, 38), with the transducing head (62) being moved open-loop a distance corresponding to a half-track width between each media transport. During the first such pass, the marker bursts (46) and servo-positioning bursts (36, 38) are located on the basis of tape travel distance, and on successive passes burst location is determined by sensing the previously-recorded marker and servo bursts and timing a predetermined distance therefrom by use of an internal clock. In the case of tape, successive recording passes are made with the tape travelling alternately backwards and forwards.