公开(公告)号：EP1587068A3

公开(公告)日：2005-12-28

申请号：EP05016133.0

申请日：2003-10-24

申请人： Barnes, Charles Frederick James

发明人： Barnes, Charles Frederick James

IPC分类号： G11B5/54 ,  G11B5/58 ,  G11B21/02

CPC分类号： G11B5/29 ,  G11B5/00 ,  G11B5/02 ,  G11B5/09 ,  G11B5/255 ,  G11B5/295 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/48 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/49 ,  G11B5/4907 ,  G11B5/4961 ,  G11B5/4969 ,  G11B5/4976 ,  G11B5/4992 ,  G11B5/52 ,  G11B5/54 ,  G11B5/56 ,  G11B5/58 ,  G11B15/18 ,  G11B15/40 ,  G11B15/60 ,  G11B15/683 ,  G11B17/30 ,  G11B2005/0002 ,  G11B2005/0005

摘要： An information storage apparatus comprises a one or more storage media (168), which include a plurality of information tracks. Each storage medium (168) has a head assembly (170) having a substantially planar surface and a plurality of read/write heads positioned in registry with said information tracks. The read/write heads are arranged substantially in the plane of the planar surface. The information storage medium (168) and the head assembly (170) are arranged in mutually sliding abutment such that the read/write heads are substantially in sliding contact with the outer surface of the information storage medium in use.
In another aspect an information storage and retrieval apparatus comprises an information storage medium (168) comprising an information storage area, and an array (170) of information read and/or write heads. The information storage medium (168) and array of heads (170) are arranged to be oscillated with respect to each other in use such that each region of the information storage area is aligned with at least one of the read/write heads during the oscillation.

公开(公告)号：EP1316946A3

公开(公告)日：2004-10-27

申请号：EP03075657.1

申请日：1996-09-17

申请人： QUANTUM CORPORATION

发明人： Kumaraswamy, Kasetty

IPC分类号： G11B5/55 ,  G11B21/08 ,  G11B5/56

CPC分类号： G11B5/56

摘要： The zenith adjustment mechanism eliminates the cumulative tolerances inherent in the components of mechanisms of the prior art. The zenith adjustment mechanism utilizes a single adjustment screw to align the magnetic head such that the face is in parallel alignment relative to the tape path, along the transverse direction.

摘要翻译： 天顶调整机构消除了现有技术的机构部件中固有的累积公差。 天顶调整机构使用单个调节螺钉来对准磁头，使得所述面相对于带路径沿横向方向平行对准。

公开(公告)号：EP1034535B1

公开(公告)日：2002-03-13

申请号：EP98959597.0

申请日：1998-11-24

申请人： STORAGE TECHNOLOGY CORPORATION

发明人： CALL, Mark, Gregory ,  HUNGERFORD, Geoffrey ,  WHITNEY, Bradley, E.

IPC分类号： G11B5/56

CPC分类号： G11B5/56

摘要： The system for gap positioning optimization in a tape drive takes advantage of the presence of a pair of read heads, located one on either side of the write head, to precisely determine the boundary between the inter-block gap and the data blocks adjoining the inter-block gap. In particular, the servo mechanisms in the tape drive note the location of the boundary between the present data block and the inter-block gap formed at the end of the present data block. When the tape is repositioned between data read/write operations, this servo information is used to identify this boundary to initiate the subsequently received data read/write operation. A predetermined amount of inter-block gap is provided at the end of the data block to ensure that subsequently received data is not written on top of the present data block or the overwriting of the next data record begins at the beginning of the data block. The system for gap positioning optimization in a tape drive activates the upstream read head during the tape acceleration process to sense the location of this boundary. The upstream read head senses the presence of a region devoid of data, indicating the inter-block gap, thereby confirming the location of the boundary with more precision than the servo data indication, and positively verifying before the write operation that the selected block is the one desired.

公开(公告)号：EP1034535A1

公开(公告)日：2000-09-13

申请号：EP98959597.0

申请日：1998-11-24

申请人： STORAGE TECHNOLOGY CORPORATION

发明人： CALL, Mark, Gregory ,  HUNGERFORD, Geoffrey ,  WHITNEY, Bradley, E.

IPC分类号： G11B5/56

CPC分类号： G11B5/56

摘要： The system for gap positioning optimization in a tape drive takes advantage of the presence of a pair of read heads, located one on either side of the write head, to precisely determine the boundary between the inter-block gap and the data blocks adjoining the inter-block gap. In particular, the servo mechanisms in the tape drive note the location of the boundary between the present data block and the inter-block gap formed at the end of the present data block. When the tape is repositioned between data read/write operations, this servo information is used to identify this boundary to initiate the subsequently received data read/write operation. A predetermined amount of inter-block gap is provided at the end of the data block to ensure that subsequently received data is not written on top of the present data block or the overwriting of the next data record begins at the beginning of the data block. The system for gap positioning optimization in a tape drive activates the upstream read head during the tape acceleration process to sense the location of this boundary. The upstream read head senses the presence of a region devoid of data, indicating the inter-block gap, thereby confirming the location of the boundary with more precision than the servo data indication, and positively verifying before the write operation that the selected block is the one desired.

公开(公告)号：EP0638894A3

公开(公告)日：1996-12-27

申请号：EP94112659.1

申请日：1994-08-12

申请人： SHARP KABUSHIKI KAISHA

发明人： Yokomachi, Yoshiyuki ,  Takeuchi, Hiroaki ,  Murata, Kazuki ,  Okuda, Tohruki

IPC分类号： G11B5/56

CPC分类号： G11B5/56 ,  G11B5/4893 ,  G11B5/531 ,  G11B5/534 ,  G11B5/588 ,  G11B5/592 ,  G11B15/1875

摘要： The relative height between two sets of magnetic head groups AT,BT shared for recording and reproduction and mounted on actuators 100A, 100B is adjusted at high accuracy, so that a track of a predetermined track width and track pitch can be formed. In a rotary head type magnetic recording/reproduction apparatus including two sets of magnetic head groups AT and BT of one or a plurality of magnetic heads displaceable in the track width direction by actuators 100A and 100B, a signal which becomes the reference for relative height adjustment of the heads is recorded by one of the magnetic head groups. Then, the magnetic tape is rewound, and the run of the magnetic tape is controlled by one of the magnetic head groups. Under this state, the relative height between the two sets of magnetic head groups is detected by the other magnetic head group, whereby the relative height of the two sets of magnetic head groups is adjusted according to that information.

摘要翻译： 两组磁头组之间的相对高度AT，BT共享用于记录和再现，并安装在致动器100A，100B被以高精度调整，如此做了预定的磁迹宽度和磁迹间距的轨道可以形成。 在旋转磁头类型的，包括两套磁头组AT和一个BT的或磁头的多个磁记录/再现装置中由致动器100A和100​​B，这成为对于相对高度调整所述参考信号的磁道宽度方向上可移动 头部是由磁头组中的一个记录。 然后，将磁带倒带，和磁带的运行是由磁头组中的一个控制。 在这种状态下，两组磁头组之间的相对高度是由另一个磁头组，由此来gemäß做信息两组磁头组的相对高度进行调整检测。

公开(公告)号：EP0656143A1

公开(公告)日：1995-06-07

申请号：EP94915664.0

申请日：1994-05-23

申请人： CENTRAL RESEARCH LABORATORIES LIMITED

发明人： CLEMOW, Richard, David

IPC分类号： G11B5 ,  G11B20

CPC分类号： G11B20/20 ,  G11B5/56

摘要： Azimuth error between a write head (16) and a read head (34) is determined by passing a multi-track tape (2) past the write head (16) and subsequently the read head (34). The signals written by the write head (16) and read by the read head (34) are analysed to determine the timing error (38) between best-match time-delayed portions (20-28) of these signals. This timing error (38) is indicative of the azimuth error.

摘要翻译： 写磁头（16）和读磁头（34）之间的方位误差是通过使多磁带（2）通过写磁头（16）并随后通过读磁头（34）来确定的。 分析由写入头（16）写入并由读取头（34）读取的信号以确定这些信号的最佳匹配时间延迟部分（20-28）之间的定时误差（38）。 该定时误差（38）表示方位误差。

公开(公告)号：EP0617412A3

公开(公告)日：1995-05-24

申请号：EP94104516.3

申请日：1994-03-22

申请人： MINNESOTA MINING AND MANUFACTURING COMPANY

发明人： Tran, Hung T., c/o Minnesota Mining & Man. Co. ,  Anderson, James S., c/o Minnesota Mining & Man.Co ,  Hill, Christ. L., c/o Minnesota Mining & Man. Co. ,  Youngquist, Rob. J., c/o Minnesota Mining & Man.Co ,  Richards, D.B., c/o Minnesota Mining & Man. Co.

IPC分类号： G11B5/55 ,  G11B5/584

CPC分类号： G11B5/5504 ,  G11B5/56 ,  G11B5/584

摘要： A head-track orienting system for use in magnetic recording tape drives is disclosed which automatically corrects for misalignment between the head assembly (26) and a recorded servo track (31) on the tape. Using a servo control loop, the system calculates head-track alignment error during operation of the tape drive and either pivots the head assembly (26) or adjusts the tape cartridge to compensate for the error. Transverse head-track positioning mechanisms are also included in the system to locate and maintain a centered position of the heads (25, 27) on the servo track.

公开(公告)号：EP0643383A2

公开(公告)日：1995-03-15

申请号：EP93118138.2

申请日：1993-11-09

申请人： TANDBERG DATA A/S

发明人： Guttorm, Rudi ,  Nils, Martin Teien

IPC分类号： G11B5/55 ,  G11B21/08

CPC分类号： G11B5/56

摘要： An apparatus for positioning a magnetic tape head (3) transversely relative to a length of magnetic tape in a magnetic tape recorder along a shaft. The shaft (6) vertical axis may be slightly tilted to compensate for manufacturing tolerances and achieve the necessary alignment of the magnetic tape head to the magnetic tape (3) path. To accomplish this, one end of the shaft (6) is supported in a washer bracket (12) for connecting that end of the shaft to the tape drive frame (1). The washer bracket (12) is pre-loaded axially of the shaft (6), such that a directing force applied to that end of the shaft permits the washer bracket to slide in a direction transverse to the axial direction of the shaft on the frame. Otherwise, the washer bracket (12) frictionally abuts the frame (1) and holds that end of the shaft (6) in fixed position on the frame (1).

摘要翻译： 一种用于沿着轴将磁带头相对于磁带录像机中的一段磁带横向定位的装置。 轴垂直轴可以稍微倾斜以补偿制造公差，并且实现磁带头到磁带路径的必要对准。 为了实现这一点，轴的一端支撑在用于将轴的端部连接到带驱动框架的垫圈支架中。 垫圈支架在轴的轴向预加载，使得施加到轴的端部的引导力允许垫圈支架沿横向于框架上的轴的轴向的方向滑动。 否则，垫圈支架摩擦地抵靠框架并将轴的端部固定在框架上的固定位置。

公开(公告)号：EP0633561A2

公开(公告)日：1995-01-11

申请号：EP94109799.0

申请日：1994-06-24

申请人： HITACHI, LTD.

发明人： Ono, Seiji ,  Masuda, Kenmei, Gurinpaku Totsuka Hiruzu

IPC分类号： G11B5/53

CPC分类号： G11B5/56 ,  G11B5/53 ,  G11B5/531

摘要： The present invention provides a small-sized multichannel rotary magnetic head apparatus suitable for use in digital video-tape-recorders for public welfare. This rotary magnetic head apparatus is comprised of a motor 1, a rotating drum 8 mounted on a rotating shaft 2 of the motor 1, a head base 9, a plurality of magnetic heads 10a to 10d mounted on the head base 9, and a fixed or stationary drum 4 located coaxially with the rotating drum 8 and the head base 9. The magnetic heads 10a to 10d are mounted on the lower surface of the head base 9, and adjustment of the difference in the levels of the magnetic heads is made by bringing level difference adjusting screws 16 screwed into the rotating drum 8 into contact with the upper surface of the head base 9. The level difference adjusting screws 16 may be provided on the head base 9 itself. Further, in addition to the level difference adjusting screws 16, screws for adjusting the distance between the adjacent magnetic heads may be provided.

公开(公告)号：EP0504208A1

公开(公告)日：1992-09-23

申请号：EP91900201.0

申请日：1990-12-05

申请人： Deutsche Thomson-Brandt GmbH

发明人： SCHANDL, Hartmut ,  WEISSER, Fritz

IPC分类号： G11B5

CPC分类号： G11B5/56

摘要： Le châssis d'un mécanisme d'entraînement pour magnétophone comprend un tambour de tête rotatif autour duquel s'enroule la bande magnétique, et une tête magnétique ou combinée agencée entre le tambour de tête et l'arbre d'entraînement de la bande, qui sert à reproduire et/ou enregistrer des signaux dans la piste longitudinale de la bande magnétique. La fixation de la tête magnétique peut être aisément montée sur le châssis du mécanisme d'entraînement et permet d'ajuster facilement la tête magnétique par rapport à la position de la bande magnétique sur le châssis du mécanisme d'entraînement. La tête magnétique (H) ou la tête combinée (H) est assujettie à une plaque de support (1) ajustable en hauteur sur le châssis (8) du mécanisme d'entraînement. La plaque de support (1) peut être élastiquement fléchie par des organes de réglage afin d'ajuster la position azimuthale et l'angle d'inclinaison de la tête magnétique (H), afin d'assurer le contact entre la bande et la tête. On obtient ainsi une fixation pour têtes magnétiques ou têtes combinées fixes, notamment dans des magnétoscopes ou magnétophones à bandes audio numériques.