公开(公告)号：EP0131727A3

公开(公告)日：1987-08-26

申请号：EP84106171

申请日：1984-05-30

Applicant: International Business Machines Corporation

Inventor： Fields, Davis Stuart, Jr.

IPC: G11B27/36 ,  G11B15/12 ,  G11B05/008 ,  G11B05/48 ,  G11B05/265 ,  G11B05/39

CPC classification number: G11B5/00817 ,  G11B5/4893 ,  G11B15/12 ,  G11B20/1816 ,  G11B27/36

Abstract: A digital tape drive wherein tape is written, and a read-after-write operation is immediately performed to check the integrity of the write operation, for either direction (11, 12) of tape movement. The tape (10) contains a plurality of parallel data tracks. Two read/write head modules (14, 15) span the entire tape. The read (R) and write (W) gaps of each module are alternately spaced across the width of the tape, such that the write gaps of one module are aligned with the read gaps of the other module. When one module is selected for writing, as a function of the direction of tape movement, the other module is selected to read-after-write check the first module's written data. One module (14) writes odd-track data during one direction (11) of tape movement, and reads even-track data during the opposite direction (12) of tape movement; as the other module (15) writes even-track data during said opposite movement direction (12), and reads odd-track data during said one movement direction (11). Common read and write electronic circuits are switched between the two modules, since each module is using only one of its read and write gap multiples at any given time.

公开(公告)号：EP0098921A3

公开(公告)日：1984-09-26

申请号：EP83102859

申请日：1983-03-22

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akutsu, Mitsuru

IPC: G11B05/48 ,  G11B05/58 ,  G11B17/32 ,  G11B05/56

CPC classification number: G11B5/4826 ,  G11B5/56 ,  G11B5/58 ,  G11B17/32

Abstract: A magnetic head (20) of a magnetic head device has a head guide (21) which has a groove (23) in its side surface. A support table (33) has a recess (33a) in which the lower portion of the head guide is fitted. Screws (41, 42) are screwed upward from the bottom of the support table and extend into the recess. The head guide is supported on the screws. An elastic plate (31) which has central and radially extending perforations (31a, 31b) at its center portion is mounted on the upper surface of the support table. A portion of the elastic member which defines the central perforation (31a) is fitted in the groove of the head guide. The head guide is then biased toward the screws. When the screws are turned, the level and azimuth of the magnetic head can be adjusted. A pressure pad (50) is also adjusted by other screws (64) to be set at a selected position relative to the magnetic head and at a selected tilt angle with respect to the magnetic head.

公开(公告)号：EP0030645A3

公开(公告)日：1981-12-16

申请号：EP80107237

申请日：1980-11-20

Applicant: International Business Machines Corporation

Inventor： Rinkleib, Helfried Otto

IPC: G11B05/48 ,  G11B05/56

CPC classification number: G11B5/56 ,  G11B5/4833

Abstract: A magnetic head arm assembly comprises a lightweight, low inertia frustoconical arm (10) to which a magnetic head (12) is mounted at one end. The other end of the head arm is coupled to an end of a rotatable shaft (14), by which the arm can be pivoted. An electrical coil (16) which is disposed within a magnetic field supplied by permanent magnets (20,22) is fastened to the other end of the shaft (14). The pivotable magnetic head arm assembly may be vertically adjusted to control flying height and angularly adjusted relative to the surface of a magnetic diskto correct for azimuth variations.

公开(公告)号：EP0248650A3

公开(公告)日：1988-10-26

申请号：EP87304907

申请日：1987-06-03

Applicant: FUJITSU LIMITED

Inventor： Mihara, Takahisa ,  Samma, Shoji ,  Saito, Sigeo

IPC: G11B05/48 ,  G11B05/55 ,  G11B25/04

CPC classification number: G11B33/121 ,  G11B5/4853 ,  G11B5/486 ,  G11B5/4886 ,  G11B5/5521 ,  G11B25/043

Abstract: A half-height magnetic disc device comprising: a base (1); four magnetic discs (4) arranged one above the other on the base (1); five head arms (6e) rotatable about a pivot (6f) for seeking motion on both surfaces of each magnetic disc (4); eight magnetic heads (5) each attached to an end of the head arm (6e) through springs (8, 9) facing a surface of each disc (4); a rotational drive unit (6b, 6c) for swinging the head arms (6e); a main printed circuit board (7) arranged on a rear side of the base (1); and, a cover (2) which covers an upper surface of the base (1).

公开(公告)号：EP0159039A3

公开(公告)日：1988-01-07

申请号：EP85104722

申请日：1985-04-18

Applicant: HITACHI, LTD.

Inventor： Otomo, Shigekazu ,  Kumasaka, Noriyuki ,  Yamashita, Takeo ,  Morikawa, Juichi ,  Kobayashi, Takayuki ,  Kudo, Mitsuhiro

IPC: G11B05/00 ,  G11B05/127 ,  G11B05/48

CPC classification number: G11B5/1875 ,  G11B5/1274

Abstract: @ A magnetic recording and reproducing system uses a composite magnetic head whose surface (6) facing a magnetic recording medium is composed primarily of a ferromagnetic metal (4) and a high permeability ferrite single crystal (3), and which has a region close to a gap (7) and composed of the ferromagnetic metal (4). The magnetic head is arranged in such a fashion that the {710} plane of the ferrite single crystal (3) substantially coincides with a plane (8) forming a principal magnetic circuit of the magnetic head, that the direction lying inside the {110} plane is inclined at an angle of 15° to 75° with respect to a direction perpendicular to the surface (6) facing the recording medium, and that the recording medium travels in a direction which is relatively the same as, and parallel to, a vector formed by projecting a vector extending from the inside to the outside of the surface (6) facing the recording medium in the direction, on the surface (6) facing the magnetic recording medium. By this arrangement, the step occurring on the surface (6) facing the recording medium due to wear caused by the travel of the recording medium, and any output deterioration and fluctuation resulting from the step can be remarkably reduced.

公开(公告)号：EP0208605A3

公开(公告)日：1987-09-30

申请号：EP86401438

申请日：1986-06-27

Applicant: SONY CORPORATION

Inventor： Yamanouchi Hiroshi c/o Sony Corporation

IPC: G11B05/48 ,  G11B05/58 ,  G11B05/54

CPC classification number: G11B5/4833 ,  G11B5/54 ,  G11B5/58 ,  G11B21/02

Abstract: In a magnetic recording device wherein a magnetic head (15.8) is maintained in elastic contact with a recording medium, an improved magnetic head supporting device in- tegretes a hinge (31), a swingably supported arm (32) and a magrtetic head holding member (33) into a unitary flat spring member (30). Further, an elongate oil retaining bearing sleeve (41) is provided to guide the magnetic head cartridge (41) is provided to guide the magnetic head cartridge (40) in the horizontal or radial direction relative to the recording medium.

公开(公告)号：EP0183412A3

公开(公告)日：1987-09-16

申请号：EP85308122

申请日：1985-11-07

Applicant: Ing. C. Olivetti & C., S.p.A.

Inventor： De Marco, Giuliano ,  Fehl, Alessandro

IPC: G11B05/02 ,  G11B15/12 ,  G11B05/48 ,  G11B05/265 ,  G11B05/012 ,  G11B05/55

CPC classification number: G11B5/012 ,  G11B5/02 ,  G11B5/2655 ,  G11B5/488 ,  G11B5/4886 ,  G11B15/12

Abstract: Apparatus for recording and reproducing data on a magnetic recording medium (27) having a plurality of recording tracks (29) comprises a magnetic head (32) and a mechanism which selectively positions the head (32) with respect to the tracks (29) of the magnetic medium (27). The head has at least two gaps which are of different lengths and which can be selected one at a time for reading and/or recording data on the magnetic recording medium (27). A control circuit controls the positioning mechanism to move the head with respect to the magnetic recording medium by a distance which depends on the gap selected. The packing density of tracks on the recording medium determines which gap is selected for use.

公开(公告)号：WO1999006993A1

公开(公告)日：1999-02-11

申请号：PCT/US1997021819

申请日：1997-11-14

Applicant: SEAGATE TECHNOLOGY, INC. ,  CRANE, Peter

Inventor： SEAGATE TECHNOLOGY, INC.

IPC: G11B05/48

CPC classification number: G11B5/5552 ,  G11B5/4833 ,  G11B5/4873 ,  G11B5/6017

Abstract: A suspension (22, 102, 190) supports a slider assembly (20, 204) in a disc drive (10). The suspension (22, 102, 190) includes a longitudinal axis (48, 114, 210), a proximal mounting section (40, 106) for mounting to a rigid track accessing arm (24, 204), a distal mounting section (42, 108) for supporting the slider assembly (20, 204), and first and second laterally spaced suspension beams (44, 46, 110, 112, 206, 208) extending from the proximal mounting section (40, 106) to the distal mounting section (42, 108). The first and second suspension beams (44, 46, 110, 112, 206, 208) have inside and outside edges (66, 68, 124, 126) relative to the longitudinal axis (48, 114, 210) and are flat from the inside edges (66, 124) to the outside edges (68, 126). A first preload bend (80, 113, 214) is formed in the first and second suspension beams (44, 46, 110, 112, 206, 208) transverse to the longitudinal axis (48, 114, 210).

Abstract translation: 悬架（22,102,190）支撑在盘驱动器（10）中的滑块组件（20,204）。 所述悬架（22,102,190）包括纵向轴线（48,114,210），用于安装到刚性轨道进入臂（24,204）的近侧安装部分（40,106），远端安装部分 ，108），以及用于支撑滑块组件（20,204）的第一和第二横向间隔开的悬挂梁（44,46,110,112,206,208），其从近侧安装部分（40,106）延伸到远端安装件 （42,108）。 第一和第二悬挂梁（44,46,110,112,206,208）相对于纵向轴线（48,114,210）具有内部和外部边缘（66,68,124,126），并且与 内边缘（66,124）到外边缘（68,126）。 在第一和第二悬挂梁（44,46,110,112,206,208）中横向于纵向轴线（48,114,210）形成第一预加载弯曲部（80,113,214）。

公开(公告)号：WO1994019795A1

公开(公告)日：1994-09-01

申请号：PCT/US1994001795

申请日：1994-02-24

Applicant: HUTCHINSON TECHNOLOGY INCORPORATED

Inventor： HUTCHINSON TECHNOLOGY INCORPORATED ,  FIEDLER, Richard, Gregg

IPC: G11B05/48

CPC classification number: G11B5/6005 ,  G11B5/4813 ,  G11B21/12

Abstract: Two HSAs (10, 12) are mounted to a single rigid arm (18) such that the HSAs (10, 12) interleave one another, with a head (36) of one HSA (12) projecting through an aperture (40) on the load beam (22) of the other HSA (10). Thus, the HSA (10) mounted to the top side (14) of the arm (18) will access the disk below the arm (18) itself, while the HSA (12) mounted on the bottom side (16) of the arm (18) will access the disk above the arm (18) itself. Various types of HSAs can be used with the disclosed interleaving or interfitting. Decreased disk-to-disk spacing is achieved by the disclosed arrangement.

Abstract translation: 两个HSA（10,12）安装到单个刚性臂（18），使得HSA（10,12）彼此交错，一个HSA（12）的头部（36）突出穿过孔（40） 另一个HSA（10）的负载梁（22）。 因此，安装在臂（18）的顶侧（14）上的HSA（10）将自动进入臂（18）下方的盘，而安装在臂的底侧（16）上的HSA（12） （18）将访问臂（18）本身上方的盘。 可以使用所公开的交织或配对来使用各种类型的HSA。 通过所公开的布置来实现磁盘到磁盘间隔的减小。

公开(公告)号：WO1990009659A1

公开(公告)日：1990-08-23

申请号：PCT/GB1989000183

申请日：1989-02-16

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  RUSSELL-SMITH, John, Hardy ,  WARN, Ian, Stanley

Inventor： INTERNATIONAL BUSINESS MACHINES CORPORATION

IPC: G11B05/48

CPC classification number: G11B5/4813

Abstract: A head carrier for carrying a plurality of head/arm assemblies each of which comprises a rigid arm portion supporting two flexures biased away from each other and a transducer bearing slider at the free end of each flexure. The head carrier provides the head/arm assemblies in the correct orientation for assembly to the actuator mechanism of a disk file. The head/arm assemblies can be attached to the actuator without removing the carrier.

Abstract translation: 用于承载多个头/臂组件的头托架，每个头/臂组件包括支撑彼此偏离的两个挠曲件的刚性臂部分和在每个弯曲部的自由端的换能器支承滑动件。 头托架以正确的方向提供头/臂组件，以组装到盘文件的致动器机构。 头/臂组件可以连接到执行机构，而不需要移除托架。