公开(公告)号：EP0167093A3

公开(公告)日：1988-03-23

申请号：EP85107871

申请日：1985-06-25

Applicant: VERBATIM CORPORATION

Inventor： Bond, Charles R. ,  Sturtevant-Stuart, Ronald M.

IPC: G11B05/016 ,  G06F03/06 ,  G11B20/12

CPC classification number: G06F3/0607 ,  G06F3/064 ,  G06F3/0676

Abstract: A multiple system data storage disk adapted for use with more than one type of computer. The disk is specially formatted to include software for each computer. The disk includes four discrete recognition headers, one for each target computer, placed at locations on the disk where each computer expects to begin its data loading operation. Each header further includes software directing the computer to step out to a discrete group of data tracks located elsewhere on the disk. Each data track group contains an identical program, written in each target computer's language. The disk is suited to video games for multiple computers. An alternative embodiment of the disk includes a header or headers containing a magnetic signature for copy protection. A disk can be produced with twenty-four such headers, one for each type of computer on the market, which can be mass produced to provide low-cost copy protection for all machines.

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：WO1984004621A1

公开(公告)日：1984-11-22

申请号：PCT/US1984000758

申请日：1984-05-17

Applicant: DRIVETEC, INC.

Inventor： DRIVETEC, INC. ,  THOMPSON, Herbert, E.

IPC: G11B05/016

CPC classification number: G11B17/0285 ,  G11B17/0288

Abstract: A centering, clamping, and ejection mechanism for a magnet disk drive assembly includes a disk guide slot (18) in face plate (16), a frame (12, 14, 39), and a base plate (96) providing the mounting and support for a disk drive motor (63) and drive spindle (90). A cover member (68) includes a recess (70), centered directly above the spindle (90), with inner walls (72) having helical guide slots (74) adapted to accept a rotor (78) which has mating thread portions (79). A disk inserted into the guide slot (18) engages with end stops (26, 28) of a lower link (108) which causes a pivotal handle (24) normally recessed in a second slot (22) of the face plate (16) to become accessible. Upon manual rotation of the handle (24), an upper link (38), interconnected with the lower link (108), engages a radial extension arm (43) of the rotor (78) thereby causing the rotor (78) to turn within the inner walls (72) of the recess (70). This brings a centering and clamping assembly (86) and the disk into engagement with the spindle (90) while the rotor (78) is locked in the clamped position and the handle (24) is recessed in the second slot (22) to prevent inadvertent actuation. A release button (50) can be manually pushed which forces the upper link (38), through an overcenter link (102), to rotate the rotor (78) and return the handle (24) to their respective original positions and to force the disk partially out of the disk slot (18).

Abstract translation: 用于磁盘驱动器组件的定心，夹紧和排出机构包括面板（16）中的盘引导槽（18），框架（12,14,39）和底板（96），底板（96）提供安装和 支撑盘驱动马达（63）和驱动主轴（90）。 盖构件（68）包括位于心轴（90）正上方的中心的凹部（70），内壁（72）具有螺旋形引导槽（74），其适于接纳具有配合螺纹部分（79）的转子（78） ）。 插入到引导槽（18）中的盘与下连杆（108）的端部止动件（26,28）接合，该下连杆（108）引起通常凹入面板（16）的第二槽（22）中的枢转手柄（24） 成为可及。 在手柄（24）的手动旋转时，与下连杆（108）互连的上连杆（38）与转子（78）的径向延伸臂（43）接合，从而使转子（78）在内 凹部（70）的内壁（72）。 这使得定心和夹紧组件（86）和盘与主轴（90）接合，同时转子（78）被锁定在夹紧位置，并且手柄（24）凹入第二槽（22）中以防止 无意的动作。 可以手动地推动释放按钮（50），迫使上连杆（38）通过过中心连杆（102）旋转转子（78）并将手柄（24）返回到它们各自的原始位置，并迫使 磁盘部分地从磁盘插槽（18）中移出。

公开(公告)号：WO1990005974A1

公开(公告)日：1990-05-31

申请号：PCT/US1989004387

申请日：1989-10-03

Applicant: SYQUEST TECHNOLOGY

Inventor： SYQUEST TECHNOLOGY ,  IFTIKAR, Syed, H. ,  MANDISH, John, J.

IPC: G11B05/016

CPC classification number: G11B33/121 ,  G11B17/03 ,  G11B17/043 ,  G11B19/2009 ,  G11B21/00 ,  G11B23/0318 ,  G11B23/507 ,  G11B25/043

Abstract: A disc drive (20) including a spindle motor assembly (42) having a magnetic clutch plate (46) and an actuator (47) receives a hermetically sealed cartridge (22) containing a plurality of discs (72, 74) with associated heads (80, 81) mounted in the cartridge (22). Associated with an arm assembly (84) which supports heads (80, 81) is a component (50) for use with the actuator (47). With the cartridge (22) inserted in the drive (20), the actuator (47) operates to cause the heads (80, 81) to traverse relative to the disc (72, 74) as the spindle motor assembly (42) uses a magnetic field to engage a magnetic plate (77) associated with cartridge (22) in order to spin the disc (72, 74). Data transfer connectors (52, 54) are associated with both the drive (20) and the cartridge (22) in order to allow for the transfer of data between the cartridge (22) and the drive (20).

Abstract translation: 包括具有电磁离合器板（46）和致动器（47）的主轴电动机组件（42）的盘驱动器（20）容纳密封的盒（22），该盒包含多个具有相关联的头的盘（72,74） 80，81）安装在盒（22）中。 与支撑头（80,81）的臂组件（84）相关联的是用于与致动器（47）一起使用的部件（50）。 当盒（22）插入驱动器（20）中时，致动器（47）操作以使主轴（80,81）相对于盘（72,74）相对于主轴电机组件（42）使用 磁场以接合与盒（22）相关联的磁板（77），以便旋转盘（72,74）。 数据传输连接器（52,54）与驱动器（20）和盒（22）相关联，以便允许在盒（22）和驱动器（20）之间传送数据。

公开(公告)号：WO1989004036A1

公开(公告)日：1989-05-05

申请号：PCT/US1988003875

申请日：1988-10-24

Applicant: EDWARDS, William, J.

IPC: G11B05/016

CPC classification number: G11B23/0021 ,  G11B17/02 ,  G11B17/021 ,  G11B17/038 ,  G11B33/1473

Abstract: A spacer for separating disks in a disk drive (40) having a plurality of superposed disks (50) surrounding a hub (42) comprising a sheet material ring (25) channel-shaped in cross section having radial and circumferentially spaced apertures (36, 38) for providing transverse fluid communication through the spacer.

公开(公告)号：WO1987003129A1

公开(公告)日：1987-05-21

申请号：PCT/US1986002355

申请日：1986-11-04

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  BIZJAK, John, Francis

IPC: G11B05/016

CPC classification number: G11B20/1258 ,  G11B5/016 ,  G11B2020/1282

Abstract: Data is so recorded in tracks of a first radially disposed zone (O) of a disc that the minimum bit length limit is not exceeded within the innermost track of the zone and, in another more inwardly radially disposed recorder zone (1) (or zones) of the disc, the quantity of data recorded in the tracks thereof is binarily reduced so as again not to exceed the minimum bit length limit within the innermost track of the second zone (1), etc.

公开(公告)号：WO1984001462A1

公开(公告)日：1984-04-12

申请号：PCT/US1983001547

申请日：1983-09-29

Applicant: DRIVETEC, INC.

Inventor： DRIVETEC, INC. ,  THOMPSON, Herbert, E.

IPC: G11B05/016

CPC classification number: G11B17/0286 ,  G11B19/2009

Abstract: A mechanism for clamping and spinning a flexible disk comprising a spindle (14) and a collet (16). The spindle (14) includes a guide hub (22) supported by two ball bearings (26) and (28) mounted on a fixed shaft (42). The guide hub (22) is a hollow cylinder and is rotated by a belt (92) driven by an electric motor. A precision bore (34), equal in diameter to the nominal diameter of the center hole in the flexible disk, is provided in the guide hub (22) as a reference surface for positioning the disk, and a surface (58) perpendicular to the axis of the spindle (14) is provided for clamping the disk. The collet (16) comprises two interlocking molded plastic parts, a finger ring (72) and a clamp hub (74), that are rotateable attached to a guide arm (20). The finger ring (72) includes several radially moveable fingers which form a conical camming surface (103) with a maximum diameter slightly larger than that of the guide hub bore. A surface (108) for clamping the flexible disk is provided on the clamp hub. An O-ring (76) is positioned between the finger and the clamp hub to provide a compliant stop for inward movement of the fingers.

Abstract translation: 一种用于夹紧和旋转包括主轴（14）和夹头（16）的软盘的机构。 主轴（14）包括由安装在固定轴（42）上的两个球轴承（26）和（28）支撑的导向轮毂（22）。 导向轮毂（22）是中空圆筒，并由电动机驱动的皮带（92）转动。 在导向轮毂（22）中设置有直径相对于柔性盘中心孔的公称直径的精密孔（34），作为用于定位盘的参考表面，以及垂直于 轴（14）的轴线被设置用于夹紧盘。 夹头（16）包括两个互锁的模制塑料部件，指环（72）和夹紧毂（74），其可旋转地附接到引导臂（20）。 指环（72）包括几个可径向移动的指状物，其形成最大直径略大于引导毂孔的最大直径的圆锥形凸轮表面（103）。 用于夹紧柔性盘的表面（108）设置在夹紧毂上。 O形环（76）位于手指和夹紧毂之间，以提供用于手指向内移动的柔顺止挡件。

公开(公告)号：EP0210529A3

公开(公告)日：1988-08-10

申请号：EP86109659

申请日：1986-07-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Nakamura, Nobutaka c/o Patent Division

IPC: G11B05/016 ,  G11B20/10 ,  G06F03/06

CPC classification number: G06F3/0601 ,  G06F2003/0692 ,  G11B5/016 ,  G11B20/10

Abstract: floppy disk drive interface circuit of the invention has a counter/selector (21) for counting the pulse width of a window signal supplied from a voltage frequency oscillator (2). When a window pulse having a pulse width longer or shorter than a preset pulse width is input, counter/selector (21) supplies a disable signal to AND gate 22. AND gate 22 blocks window signal 12 from VF02 being supplied to FDC 3.

公开(公告)号：EP0203592A3

公开(公告)日：1988-02-24

申请号：EP86107265

申请日：1986-05-28

Applicant: SONY CORPORATION

Inventor： Kutaragi, Ken c/o Sony Corporation

IPC: G11B27/30 ,  G11B05/016 ,  G11B20/12 ,  H04N05/781

CPC classification number: G11B20/1254 ,  G11B27/3027 ,  H04L7/08 ,  H04N5/935

Abstract: A synchronizing signal detecting circuit for a digital data reproducing apparatus having a reproducing device (12) connected to a magnetic head (11) for deriving digital signals, a phase locked loop circuit (16) connected to the reproducing device for generating a clock signal based on the derived digital signals, a sync. (synchronizing) counter (17) for generating sync. timings by counting the clock signal, a plurality of sync. pattern detecting circuits (13, 14) connected to the reproducing device (12) for detecting sync. patterns included in the digital signals, and a logic circuit (15) connected to the plurality of sync. pattern detecting circuits (13, 14) for supplying an initialize pulse to the sync. counter (17) upon detecting successive sync. patterns in the digital signals at the plurality of sync. pattern detecting circuits.

公开(公告)号：EP0162689A3

公开(公告)日：1987-05-27

申请号：EP85303532

申请日：1985-05-20

Applicant: SONY CORPORATION

Inventor： Kutaragi, Ken c/o Sony Corporation

IPC: G11B20/18 ,  G11B20/10 ,  G11B05/016 ,  H04N05/781

CPC classification number: G11B5/016 ,  G11B20/1251 ,  G11B20/1809 ,  G11B23/0021 ,  G11B27/36 ,  G11B2020/10537 ,  G11B2220/2508 ,  H04N9/7921 ,  H04N9/83

Abstract: A magnetic disc reproducing apparatus, for reproducing information signals from one of a plurality of tracks of a magnetic disc, includes a transducer (21) positioned in transducing relation with the plurality of tracks for reading out the information signals of the tracks, a checking circuit (45, 52) connected to the transducer (21) for checking a portion of the information signals, and an identifying circuit (53) connected to the checking circuit (45, 52) for identifying characteristics of the information signals being reproduced.