公开(公告)号：WO1988006782A1

公开(公告)日：1988-09-07

申请号：PCT/DE1988000052

申请日：1988-02-03

Applicant: BTS BROADCAST TELEVISION SYSTEMS GMBH ,  HESCHER, Manfred ,  WOLF, Theo

Inventor： BTS BROADCAST TELEVISION SYSTEMS GMBH

IPC: G11B05/53

CPC classification number: G11B5/53

Abstract: In order to produce compatible track patterns on magnetic tapes, the head wheels of helical-scan magnetic tape recorders must be height - adjustable. Known methods of construction either cause a change in the pretension of the head wheel bearings (3, 4) when the height of the head wheels is adjusted, or require an unnecessarily large mechanical winding of the magnetic tape around the scanning device. In the scanning device of the invention, the head wheel motor and head wheel form a single unit, longitudinally adjustable. Pretension of the rolling bearings (3, 4) is achieved by a spring device (6, 10), which is supported by a part rotating with the head wheel axle (2).

Abstract translation: 为了在磁带上产生兼容的轨道图案，螺旋扫描磁带录像机的头轮必须是高度可调的。 当调节头轮的高度时，或者需要围绕扫描装置的磁带的不必要的大的机械卷绕，已知的结构方法可能导致头轮轴承（3,4）的预紧力的变化。 在本发明的扫描装置中，头轮马达和头轮形成单个单元，可纵向调节。 通过由头轮轴（2）旋转的部分支撑的弹簧装置（6,10）实现滚动轴承（3,4）的预紧。

公开(公告)号：WO1996015527A1

公开(公告)日：1996-05-23

申请号：PCT/JP1995002319

申请日：1995-11-14

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  FUJIKI, Mitsuhisa ,  OMIYA, Takeshi

Inventor： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

IPC: G11B05/53

CPC classification number: G11B5/53 ,  G11B5/48 ,  G11B5/4893 ,  G11B5/4976 ,  G11B5/531

Abstract: A magnetic head device provided with a rotary drum, a plurality of intermediate members joined onto the rotary drum, and a plurality of magnetic heads respectively joined to the intermediate members. Each magnetic head is fixed to the rotary drum through each intermediate member. The thicknesses of the heads and members are so combined that the variation of track heights of the magnetic heads can be offset. Therefore, no head base nor connecting parts are used, providing a magnetic head device which is suitable for multiple-magnetic-head devices and small-sized magnetic head devices. A high-precision magnetic head device can be efficiently produced because the variation of track heights of the magnetic heads is offset by the thicknesses of the intermediate members interposed.

Abstract translation: 一种设置有旋转鼓，连接到旋转滚筒上的多个中间构件和分别连接到中间构件的多个磁头的磁头装置。 每个磁头通过每个中间构件固定到旋转磁鼓。 头部和部件的厚度如此组合，使得磁头的磁道高度的变化可被抵消。 因此，不使用头座或连接部件，提供适用于多磁头装置和小型磁头装置的磁头装置。 由于磁头的磁道高度的变化被插入的中间部件的厚度所抵消，所以可以有效地制造高精度磁头装置。

公开(公告)号：WO1996000437A1

公开(公告)日：1996-01-04

申请号：PCT/US1995007681

申请日：1995-06-15

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  NOTHAFT, Eugene, M. ,  ARGENTO, Dan, J. ,  SAGA, Hideaki

IPC: G11B05/53

CPC classification number: G11B5/0086 ,  G11B5/537 ,  G11B5/588 ,  G11B15/61 ,  G11B15/615 ,  G11B23/08757 ,  G11B23/08778

Abstract: An improved arcuate scanning head assembly (ASHA) is angled relative to the line of travel of the tape. The relative sizes of the angle, the diameter of the ASHA and the amount by which the heads protrude from the cylinder end face of the ASHA are such that the magnetic heads make firm contact with the tape when above one side of the ASHA's rotating cylinder face, but at most grazing contact with the tape when above the other side of the cylinder face. Preferably, they make firm contact on the one side and do not make contact at all when on the other side. Preferably, the angle also is such that on the side making contact, the head makes and loses contact with the tape a small distance in from the edge of the tape, reducing or eliminating problems due to the head striking the edge of the tape. Alternatively, the ASHA is left straight, but the tape cartridge for use with the ASHA is modified so that the tape is presented at an angle across the media access opening.

Abstract translation: 改进的弓形扫描头组件（ASHA）相对于带的移动线成角度。 角度的相对尺寸，ASHA的直径和头部从ASHA的气缸端面突出的量使得当ASHA的旋转气缸面的一侧上方时磁头与磁带牢固接触 ，但是当在气缸面的另一侧上方时，最多与胶带放牧接触。 优选地，它们在一侧牢固接触，并且在另一侧完全不接触。 优选地，该角度也使得在接触的一侧上，头部与带的距离带的距离很小的距离接触，从而减少或消除了头部撞击带的边缘所引起的问题。 或者，ASHA保持直线，但是用于ASHA的带盒被修改，使得胶带以介质通道开口的一角度呈现。

公开(公告)号：WO1989001683A1

公开(公告)日：1989-02-23

申请号：PCT/EP1988000707

申请日：1988-08-06

Applicant: DEUTSCHE THOMSON-BRANDT GMBH ,  MAHR, Peter

Inventor： DEUTSCHE THOMSON-BRANDT GMBH

IPC: G11B05/53

CPC classification number: G11B5/53 ,  G11B15/1808

Abstract: Lifeting device for a rotor (8) by means of a threaded spindle (6) driven by a servomotor (M2). Processes are known to detect the location within a lifting range by means of position sensors. This kind of detection is not tolerance-free and inaccurate. The present invention allows the location within a lifting range, for example a magnetic track within a magnetic tape width, to be accurately defined. Sensors (S1, S2) are linked to the rotor (8) and to the driving threaded spindle (6). Neither sensor has an ajusted position and both emit an impulse with each rotation. For a fixed predetermined measurement path (H) within a lifting displacement, the time difference DELTA t between the impulses emitted by the sensors (S1, S2) is determined by counting circuits. Given a known pitch (s) of the threaded spindle (6), the location of a magnetic track can be detected, thus allowing the location within a lifting range to be adjusted.

Abstract translation: 用于通过由伺服电动机（M2）驱动的螺纹主轴（6）的转子（8）的活动装置。 已知过程通过位置传感器检测提升范围内的位置。 这种检测不是公差的，不准确的。 本发明允许精确地限定提升范围内的位置，例如磁带宽度内的磁道。 传感器（S1，S2）连接到转子（8）和驱动螺杆（6）。 两个传感器都没有调整位置，并且每次旋转都会发出脉冲。 对于提升位移期间的固定预定测量路径（H），传感器（S1，S2）发出的脉冲之间的时差DELTA t由计数电路确定。 给定螺纹主轴（6）的已知螺距，可以检测磁迹的位置，从而允许调整提升范围内的位置。

公开(公告)号：WO1988006783A1

公开(公告)日：1988-09-07

申请号：PCT/DE1988000086

申请日：1988-02-19

Applicant: BTS BROADCAST TELEVISION SYSTEMS GMBH ,  WILLMANN, Hartmut ,  DITTMANN, Ludwig ,  HEINZ, Richard ,  LÜTZELER, Jörm

Inventor： BTS BROADCAST TELEVISION SYSTEMS GMBH

IPC: G11B05/53

CPC classification number: G11B5/531 ,  G11B5/11 ,  G11B5/115 ,  G11B5/53

Abstract: To improve the cross-talk quality of a multi-channel magnetic tape recorder with a rotating head wheel, of which the magnetic heads receive signals via a rotating translator, the leads between the magnetic heads and the corresponding translator spools (12) are isolated from each other. This isolation is achieved by means of covers (15) made of small tubes of an efficient electro-conductive metal; further, these may be joined mechanically and electrically with the rotating axle. Further improvement in cross-talk quality may be achieved by making an electro-conductive connection between the covers (15) and with the short circuit rings (7, 9, 11) which are disposed between the translators (6, 8, 10).

Abstract translation: 为了提高具有旋转头轮的多通道磁带录音机的串扰质量，磁头通过旋转的转换器接收信号，磁头和相应的转换器线轴（12）之间的引线与 彼此。 这种隔离是通过由有效的导电金属的小管制成的盖（15）来实现的; 此外，这些可以与旋转轴机械地和电气地连接。 串扰质量的进一步改善可以通过在盖（15）之间和布置在平移器（6,8,10）之间的短路环（7,9,11）之间进行导电连接来实现。

公开(公告)号：WO1988006333A1

公开(公告)日：1988-08-25

申请号：PCT/DE1988000045

申请日：1988-02-02

Applicant: ROBERT BOSCH GMBH ,  HESCHER, Manfred

Inventor： ROBERT BOSCH GMBH

IPC: G11B05/53

CPC classification number: G11B5/53 ,  G11B5/56

Abstract: For recording and reproducing broad band signals on magnetic tape, apparatuses with electromagnetic converters arranged on the circumference of head wheels or head drums are used. In order to define according to standards the magnetization range of each track, the electromagnetic converters have to be adjustable with very strict allowances in the radial, axial and circumferential direction of the head wheel or head drum and in their angular position. Known holding and adjusting devices allow such adjustments to be only imperfectly done or require too much space. The present holding and adjusting device is subdivided by slots located between both magnetic heads (8,9) and extending in the circumferential direction in such a way the spacing between the head gaps in the circumferential direction, their height relative to each other and the azimuthal angle of the head gaps can be adjusted by means of adjusting screws (16,22,23). The holding and adjusting device is particularly suitable for being arranged at the free end of a piezoelectric deflecting device (2).