公开(公告)号：EP0191622A3

公开(公告)日：1987-09-30

申请号：EP86300899

申请日：1986-02-10

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Koizumi, Satoru ,  Teshima, Daisuke ,  Katayama, Yoshio

IPC: G11B25/06 ,  G11B05/48 ,  G11B05/56

CPC classification number: G11B5/488 ,  G11B5/56 ,  G11B25/063

Abstract: @ This invention relates to a means for attaching magnetic heads to a tape recorder of the type containing a plurality of tape cassettes one on top of another within a cassette compartment section and a plurality of magnetic heads on a slidable plate corresponding individually to these tape cassettes. A plurality of supporting means are secured on the slidable plate sequentially away from the tape cassettes and the magnetic heads are secured individually on these supporting means at the different heights of and opposite to the tape cassettes such that azimuthal adjustments of the magnetic heads can be effected independently and easily.

公开(公告)号：EP0053430A3

公开(公告)日：1983-01-05

申请号：EP81304678

申请日：1981-10-08

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Vogelgesang, Peter J.

IPC: G11B05/56 ,  G11B05/28

CPC classification number: G11B5/56

Abstract: n assembly for use in an analog audio record/ playback or playback system to achieve and maintain the same phase relationship between the recorded signals upon playback, as was present when the signals were originally recorded comprising generally, playback transducer means including a playback head, phase comparison to determine the phase relationship of the signal played back by the playback transducer means and to output a signal which is proportional to the magnitude and direction of any phase difference present, and electrically responsive driver means to adjust the playback transducer means to dynamically compensate for the phase error by rotating the playback head.

公开(公告)号：EP0121590A3

公开(公告)日：1985-09-18

申请号：EP83108525

申请日：1983-08-30

Applicant: VERBATIM CORPORATION

Inventor： Bond, Charles R.

IPC: G11B05/58 ,  G11B05/56 ,  G11B19/28 ,  G11B05/016 ,  G11B27/36

CPC classification number: G11B27/36 ,  G11B5/5543

Abstract: An alignment testing device comprising a magnetic media with data tracks in nonstandard locations with bidirectionally progressive degrees of misalignment for testing the alignment of the transducer head in a magnetic storage device such as a floppy disk drive. The alignment testing device allows the user to determine the boundaries of track alignments that the transducer head can read, and thereby determine any discrepency between the heads actual alignment and correct alignment.

公开(公告)号：WO1998020487A1

公开(公告)日：1998-05-14

申请号：PCT/US1997007710

申请日：1997-05-06

Applicant: SEAGATE TECHNOLOGY, INC. ,  BOUTAGHOU, Zine-Eddine ,  LIU, Joseph, Cheng-Tsu

Inventor： SEAGATE TECHNOLOGY, INC.

IPC: G11B05/56

CPC classification number: G11B21/24 ,  B24B37/005 ,  B24B37/048 ,  B24B49/16 ,  G11B5/1871 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3169 ,  G11B5/3173 ,  G11B5/3967 ,  G11B5/398 ,  G11B5/4826 ,  G11B5/54 ,  G11B5/56 ,  Y10T29/49004

Abstract: A head positioning mechanism in a disc drive system is disclosed. The disc drive system includes a rotatable disc (12), an actuator arm (18), and a suspension load beam (22, 32, 52, 72) connected to the actuator arm (18). The head positioning mechanism includes a motor (38, 58) attached to the suspension load beam (22, 32, 52, 72). A gimbal (23, 33, 53, 73) has a first end attached to the motor (38, 58), and a slider (24, 34, 54, 74) carrying a transducing head (35, 55, 75) is attached to a second end of the gimbal (23, 33, 53, 73). Control circuitry (39, 59, 79) generates electrical control signals to operate the motor (38, 58) to selectively position the transducing head (35, 55, 75) proximate a predetermined radial location on the rotatable disc (12).

Abstract translation: 公开了一种磁盘驱动系统中的磁头定位机构。 盘驱动系统包括可旋转盘（12），致动器臂（18）和连接到致动器臂（18）的悬挂负载梁（22,32,52,72）。 头部定位机构包括附接到悬挂负载梁（22,32,52,72）的马达（38,58）。 万向架（23,33,53,73）具有附接到电动机（38,58）的第一端，并且附接有承载换能头（35,55,75）的滑块（24,34,54,74） 到了万向节的第二端（23,33,53,73）。 控制电路（39,59,79）产生电控制信号以操作电机（38,58），以选择性地将换能头（35,55,75）定位在可旋转盘（12）上的预定径向位置附近。

公开(公告)号：WO1991009398A1

公开(公告)日：1991-06-27

申请号：PCT/EP1990002098

申请日：1990-12-05

Applicant: DEUTSCHE THOMSON-BRANDT GMBH ,  SCHANDL, Hartmut ,  WEISSER, Fritz

Inventor： DEUTSCHE THOMSON-BRANDT GMBH

IPC: G11B05/56

CPC classification number: G11B5/56

Abstract: A drive chassis has a rotating head drum around which a magnetic tape can be looped and a magnetic head or combined head for reproducing and/or recording signals in the longitudinal track of the magnetic tape arranged between the head drum and the tape drive shaft. A holding device for the magnetic head is constructed so that, on the one hand, it can be easily mounted on the drive chassis and, on the other hand, the magnetic head can be adjusted simply in relation to the position of the magnetic tape above the drive chassis. The magnetic head (H) or combined head (H) is fastened to a carrier plate (1) which can be elastically adjusted above the drive chassis (8) and which can be elastically deflected by adjusting means in order to adjust the azimuthal position and the angle of inclination of the magnetic head (H) for the tape/head contact. Holding device for stationary magnetic heads or combined heads, in particular for video and digital audiotape recorders.

公开(公告)号：WO1991003809A1

公开(公告)日：1991-03-21

申请号：PCT/US1990004870

申请日：1990-08-27

Applicant: WANGTEK, INC.

Inventor： WANGTEK, INC. ,  BAHERI, Hamid

IPC: G11B05/56

CPC classification number: G11B5/55

Abstract: A magnetic head (11) positioning system operates with a lead screw stepper motor assembly and a recording or reading head. The lead screw of the lead screw stepper motor assembly extends through and coaxially with a hollow cylindrical tube (13). Two slots (20 and 21) are provided through the peripheral wall of the tube and extend from one end of the tube towards the second end. A floating nut (14) is shaped to be placed on the lead screw (12) so as to move in a first and second direction as the lead screw is moved in a first and second direction by the motor assembly. The floating nut is provided with two outwardly extending wings (24 and 25) each shaped to fit in one of the slots provided in the tube. A carriage assembly (15) is secured to the head and includes a tubular structure (26) having an inside diameter larger than the outside diameter of the slotted tube. The tubular structure also includes tow slots (30) extending from one end toward a second end of the structure. The tubular structure is placed over the slotted tube, floating nut, and lead screw with the wing of the floating nut extending through the slots and with the closed ends of the slots resting against the wings of the floating nut to maintain the head position in dependence upon the position of the lead screw. As the lead screw is moved parallel to the axis of the slotted tube, such movement is transferred to the head.

Abstract translation: 磁头（11）的定位系统采用导螺杆步进电机组合和记录或读头操作。 导螺杆步进电动机组件的导螺杆与中空圆筒管（13）延伸并同轴。 两个槽（20和21）通过管的周壁设置并从管的一端向第二端延伸。 浮动螺母（14）的形状被设置在导螺杆（12）上，以便当导螺杆通过马达组件在第一和第二方向上移动时沿第一和第二方向移动。 浮动螺母设置有两个向外延伸的翼部（24和25），每个翅片成形为适合设置在管中的一个槽。 托架组件（15）固定到头部并且包括具有大于开槽管的外径的内径的管状结构（26）。 管状结构还包括从结构的一端向第二端延伸的丝束槽（30）。 管状结构放置在开槽管，浮动螺母和导螺杆上，浮动螺母的翼部延伸穿过狭槽，并且狭槽的封闭端靠在浮动螺母的翼部上以依赖于保持头部位置 在导螺杆的位置。 当导螺杆平行于开槽管的轴线移动时，这种运动被转移到头部。

公开(公告)号：WO1996038840A2

公开(公告)日：1996-12-05

申请号：PCT/IB1996000498

申请日：1996-05-24

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  STUPP, Steben, Elliot

IPC: G11B05/56

CPC classification number: G11B5/54 ,  G11B5/39 ,  G11B5/40 ,  G11B5/53 ,  G11B5/58

Abstract: An apparatus for recording and/or reproducing information on a magnetic tape (70) comprises a magnetic head (10) for recording and/or reproducing information on the tape. A guide (20) is situated near the magnetic head for positioning the magnetic head relative to a main surface (71) of the tape. An actuator (30) is connected to the magnetic head and the guide to move the magnetic head relative to the guide parallel to the normal to the head face (11). The apparatus further comprises control means for driving the actuator and detection means (51) to generate a signal in response to a frictional force between the head face (11) and said main surface (71) of the tape (70). The control means are adapted to drive the actuator (30) so as to cause a movement in the reverse direction (19) of the magnetic head (10) in response to reception of said signal.

Abstract translation: 用于在磁带（70）上记录和/或再现信息的装置包括用于在磁带上记录和/或再现信息的磁头（10）。 引导件（20）位于磁头附近，用于相对于磁带的主表面（71）定位磁头。 致动器（30）连接到磁头和引导件，以使磁头相对于引导件平行于头部面（11）的法线移动。 该装置还包括用于驱动致动器和检测装置（51）的控制装置，以响应于磁头面（11）和磁带（70）的所述主表面（71）之间的摩擦力产生信号。 控制装置适于驱动致动器（30），以响应于所述信号的接收而引起磁头（10）的相反方向（19）的移动。

公开(公告)号：WO1990003030A1

公开(公告)日：1990-03-22

申请号：PCT/US1989003977

申请日：1989-09-13

Applicant: GUZIK TECHNICAL ENTERPRISES, INC.

Inventor： GUZIK TECHNICAL ENTERPRISES, INC. ,  GUZIK, Nahum ,  RAO, Vinod, K.

IPC: G11B05/56

CPC classification number: G11B5/012 ,  G11B5/455 ,  G11B5/488 ,  G11B21/00

Abstract: A magnetic head and disc tester imitates motions of the head on a hard disc drive and comprises a stationary base (22), a slide mechanism (24) which can be installed in any required position on the base (22) with respect to a center of rotation of a magnetic disc (D). The disc (D) is rotatingly supported by a spindle unit (42) fixed to the stationary base (22). A magnetic head (52) to be tested is attached to the end of an arm (16) which is pivotally supported on a slide (36) of the slide mechanism. The angular position of the longitudinal axis of the magnetic disc with respect to a tangent to a given track of magnetic disc (52), i.e., a skew angle, can be adjusted and the head can be fixed in the adjusted position. For measuring the paramaters of the head of the disc, the slide (36) is moved linearly and carries the magnetic head over the disc in a linear direction, the head being installed at a required skew angle by means of the above-mentioned angular adjustment. Thus, instead of rotary motion of the head with respect to the disc tracks, it is moved linearly, but maintains the same skew angle as on the disc drive. Although this approximation produces some tracking error, it is negligible, and the tester has a simpler construction and universal applicability.

公开(公告)号：EP0243164A3

公开(公告)日：1988-05-18

申请号：EP87303524

申请日：1987-04-22

Applicant: Archive Corporation

Inventor： Baheri, Hamid

IPC: G11B05/55 ,  G11B05/54 ,  G11B05/56

CPC classification number: G11B5/54 ,  G11B5/55

Abstract: A magnetic read/write head (14) is mounted on a carriage (20) having a bore (36) therein. The carriage (20) is slidable along a stationary guide rod (40) which extends into the bore (36). A lead screw (24) threads into a nut (76) which is keyed to the carriage (20) so that rotation of the lead screw (24) moves the carriage (20) along the guide rod (40). A torsion spring (52) engages the carriage (20) and provides a force to bias the carriage (20) so as to eliminate any undesired clearance between the carriage (20) and the nut (76) and between the carriage (20) and the guide rod (40). The force is applied at an angle relative to the axis of motion (48) of the carriage (20). As the carriage (20) moves, the spring (52) is deflected, causing the angle of the force to change and the amount of the force to change. The spring (52) is oriented so that the total force directed parallel to the axis of the motion (48) of the carriage (20) remains constant. The amount of the total force is predetermined to minimize vibration of the carriage (20) and head (14). The carriage (20) is guided by the guide rod (40), not the lead screw (24), so that misalignment of the lead screw (24) does not affect the positioning of the head (14). A second guide rod (42) extends into a halfbore (38) in the carriage (20) to prevent rotation of the carriage (20) about the lead screw (24).

公开(公告)号：EP0194803A3

公开(公告)日：1987-09-16

申请号：EP86301547

申请日：1986-03-05

Applicant: TOKYO ELECTRIC CO., LTD.

Inventor： Murakami, Keisuke ,  Aoki, Chihiro ,  Kawahira, Masayoshi

IPC: G11B05/48 ,  G11B05/56

CPC classification number: G11B5/56

Abstract: Disclosed herein is a magnetic head adjusting device comprising a head retainer for retaining a magnetic head, the head retainer being mounted to a carrier adapted to reciprocate toward a center of a driving shaft for driving a magnetic disc, an azimuth adjusting mechanism for varying a direction of the head retainer with respect to a rotative axis parallel to the driving shaft, and a head attitude adjusting mechanism for letting the head retainer approach to or move away from the magnetic disc and incline relative to the same plane as the magnetic disc. With this arrangement, when a position and attitude of the magnetic head are varied during or after assembling of the device, such variation may be accurately corrected.