公开(公告)号：EP0590089A4

公开(公告)日：1996-01-03

申请号：EP92915468

申请日：1992-06-18

申请人： AMPEX SYSTEMS CORP

发明人： MAGNUSSON STEVEN L ,  ESHEL ABRAHAM

IPC分类号： G11B5/52 ,  G11B5/53 ,  G11B15/61 ,  G11B21/04 ,  G11B21/18

CPC分类号： G11B5/534

摘要： A helical tape scanner (10) in which the stationary lower drum (16) includes a narrow upper ridge (18) which is offset from the axis of the rotatable upper drum (14) in a direction toward the end of scan. The video tape moves in a helical path from the stationary lower drum (16) over the offset upper ridge to the rotatable upper drum (16) which includes the video read/write heads (22) to transfer signals to and from the tape (12).

公开(公告)号：EP0434261B1

公开(公告)日：1995-11-08

申请号：EP90313227.2

申请日：1990-12-06

申请人： SEAGATE TECHNOLOGY INTERNATIONAL

发明人： Hagen, Tracy M.

IPC分类号： G11B21/02 ,  G11B21/04

CPC分类号： G11B5/486

公开(公告)号：EP0434261A1

公开(公告)日：1991-06-26

申请号：EP90313227.2

申请日：1990-12-06

申请人： SEAGATE TECHNOLOGY INTERNATIONAL

发明人： Hagen, Tracy M.

IPC分类号： G11B21/02 ,  G11B21/04

CPC分类号： G11B5/486

摘要： A load beam (60) couples a gimbal to a support arm in a head-gimbal assembly and has a sleeve capture apparatus to support a conductor sleeve (22) running from the gimbal to the support arm along the load beam (60). A first capture tab (62) extends from an edge of the load beam and has a flat sleeve contact surface for contacting the conductor sleeve on one side. A second capture tab (64) extends from the edge of the load beam, is spaced from the tab (62) and has a semi-cylindrical sleeve contact surface for contacting the conductor sleeve on the other side. A third capture tab (66) extends from the edge of the load beam, is spaced from the tab (64) and has a flat sleeve contact surface for contacting the conductor sleeve on the one side. A fourth capture tab (68) extends from the edge of the load beam, is spaced from the tab (66) and has a semi-cylindrical sleeve contact surface for contacting the conductor sleeve on the other side. Each of the second and fourth capture tabs has its sleeve contact surface displaced from a line defined generally by the sleeve contact surfaces of the first and third capture tabs, by a distance less than the thickness of the conductor sleeve.

摘要翻译： 负载梁（60）将万向架连接到头部万向节组件中的支撑臂，并且具有套筒捕获装置，以支撑沿着负载梁（60）从万向架延伸到支撑臂的导体套管（22）。 第一捕获突片（62）从负载梁的边缘延伸并且具有用于在一侧接触导体套筒的平坦的套筒接触表面。 从负载梁的边缘延伸的第二捕获突片（64）与突片（62）间隔开并且具有用于接触另一侧的导体套筒的半圆柱形套筒接触表面。 第三捕获突片（66）从负载梁的边缘延伸，与突片（64）间隔开并且具有用于在一侧接触导体套筒的平坦的套筒接触表面。 从负载梁的边缘延伸的第四捕获突片（68）与突片（66）间隔开并且具有用于接触另一侧的导体套筒的半圆柱形套筒接触表面。 第二和第四捕获突片中的每一个具有其套筒接触表面从通常由第一和第三捕获突片的套筒接触表面限定的线移动距离小于导体套筒的厚度。

公开(公告)号：EP0353566A3

公开(公告)日：1990-03-14

申请号：EP89113455.3

申请日：1989-07-21

申请人： Citizen Watch Co. Ltd.

发明人： Takahashi, Shoji

IPC分类号： G11B21/02 ,  G11B21/04 ,  G11B21/12

CPC分类号： G11B17/0434 ,  G11B21/00

摘要： A read/write head carrying mechanism for a floppy disk drive. Upper (28) and lower (30) heads are brought into close contact with both sides of a floppy disk (16) in a loaded state, and reciprocate in the radial direction of the floppy disk (16) so as to be positioned at a desired track. The lower head (30) is secured to a carriage, while the upper head to an upper arm, which is swingable with respect to the carriage. The carriage reciprocates along a single guide rail, which is spaced apart from and disposed parallel with a head moving path. The carriage is supported by the single guide rail, with the result that the carriage and the upper arm as a whole form a carriage assembly which swings with the guide rail as a fulcrum. The upper (28) and lower (30) heads move vertically by very small amounts by following the fluctuation of the floppy disk (16), thereby causing the heads and the floppy disk to be brought into close contact with each other.

公开(公告)号：EP0057178B1

公开(公告)日：1986-07-23

申请号：EP80902165.2

申请日：1980-08-05

申请人： BUDAPESTI RADIOTECHNIKAI GYAR

发明人： JANOSI, Marcell

IPC分类号： G11B5/48 ,  G11B21/04 ,  G11B25/04

CPC分类号： G11B5/59633 ,  G11B23/0035

摘要： A method for recording track marking information on flexible magnetical information carrier discs, in which the circular tracks on one side of the disc are each divided into an information recording segment having an angular width of at least 270 and a remaining track marking segment, and in this latter respective marking frequency signals are recorded so that each of these signals is distinguishable from those recorded on the two neighbouring tracks. The apparatus for fine adjustment of the position of a reading head in case of discs recorded by the above method comprises frequency selective means that selects the marking frequency components when track marking segments are played back. The difference of the sensed components are processed to a control signal which drives a control unit for adjusting the radial position of the head to the center line of a predetermined track.

公开(公告)号：EP0057178A4

公开(公告)日：1983-03-23

申请号：EP80902165

申请日：1980-08-05

申请人： BUDAPESTI RADIOTECHNIKAI GYAR

发明人： JANOSI MARCELL

IPC分类号： G11B5/48 ,  G05D3/12 ,  G11B5/596 ,  G11B21/04 ,  G11B23/00 ,  G11B25/04

CPC分类号： G11B5/59633 ,  G11B23/0035

摘要： A method for recording track marking information on flexible magnetical information carrier discs, in which the circular tracks on one side of the disc are each divided into an information recording segment having an angular width of at least 270` and a remaining track marking segment, and in this latter respective marking frequency signals are recorded so that each of these signals is distinguishable from those recorded on the two neighbouring tracks. The apparatus for fine adjustment of the position of a reading head in case of discs recorded by the above method comprises frequency selective means that selects the marking frequency components when track marking segments are played back. The difference of the sensed components are processed to a control signal which drives a control unit for adjusting the radial position of the head to the center line of a predetermined track.