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61. 发明申请

WO1991006094A1 ADAPTIVE READ/WRITE CHANNEL CONTROLS 审中-公开
标题翻译：自适应读/写通道控制
公开(公告)号：WO1991006094A1
公开(公告)日：1991-05-02
申请号：PCT/US1990004765
申请日：1990-08-22
申请人： CONNER PERIPHERALS, INC.
发明人： CONNER PERIPHERALS, INC. , SQUIRES, John, P. , SHRINKLE, Louis, J.
IPC分类号： G11B05/09
CPC分类号： G11B20/10009 , G11B20/1816
摘要： The read/write channel is programmatically adaptable to the media use for storing data in response to data signals and the read/write head used to transfer the data signals to and from the media. Adaptability is provided by programmable signal processing elements in the read/write channel. The programmable elements include a read threshold element (THR) for determining whether data signals transferred from the media exceed a data discrimination level determined by a first programmable value (TH0-2), and a data window element (WND) for determining whether data signals transferred from the media occur within a data signal window whose timing, relative to a data clock signal, is determined by the second programmable value (W0-2). Additional programmable elements include an amplifier element that is programmed to provide a corresponding level of write current and a precompensation block for providing data signal precompensation. The programmable values are determined by the disk drive uniquely for the media, read/write head and the read/write data channel.
摘要翻译：读/写通道以编程方式适用于响应于数据信号存储数据的媒体使用以及用于将数据信号传送到媒体和从媒体传送数据信号的读/写头。适应性由读/写通道中的可编程信号处理元件提供。可编程元件包括用于确定从介质传送的数据信号是否超过由第一可编程值（TH0-2）确定的数据鉴别级别的读阈值元件（THR），以及用于确定数据信号从媒体发送的数据信号窗口中，相对于数据时钟信号的定时由第二可编程值（W0-2）确定。附加的可编程元件包括被编程为提供相应级别的写入电流的放大器元件和用于提供数据信号预补偿的预补偿块。可编程值由介质，读/写头和读/写数据通道唯一的磁盘驱动器确定。

62. 发明申请

WO1988009552A1 LATCH MECHANISM FOR DISK DRIVES 审中-公开
标题翻译： LATCH机制用于磁盘驱动器
公开(公告)号：WO1988009552A1
公开(公告)日：1988-12-01
申请号：PCT/US1988001720
申请日：1988-05-24
申请人： CONNER PERIPHERALS, INC.
发明人： CONNER PERIPHERALS, INC. , STEFANSKY, Frederick, Mark , BAGNELL, Glade, N.
IPC分类号： G11B21/22
CPC分类号： G11B33/121 , G11B21/22 , G11B25/043 , G11B33/14
摘要： A latch mechanism (146) for locking an actuator arm (160) in a disk drive (36) includes a latch (184) pivotably supported in the disk drive for engaging the actuator arm and an electromagnet (183) for capturing and holding the latch to disengage the latch from the actuator arm. A spring (188) is provided to bias the latch to engage with the actuator arm. A swivel plate (194) is provided on the latch mechanism and the electromagnet captures the swivel plate; in particular, the electromagnet has two poles, (190a and 190b) and the swivel plate contacts one of the poles and an air gap exists between the swivel plate and the other pole. The air gap allows the electromagnet to release the swivel plate. The swivelling action of the swivel plate causes the swivel plate to seat with the entire surface of the one pole of the electromagnet, increasing the ability of the electromagnet to hold the swivel plate once the swivel plate has been captured.
摘要翻译：用于将致动器臂（160）锁定在盘驱动器（36）中的闩锁机构（146）包括可枢转地支撑在盘驱动器中用于接合致动器臂的闩锁（184）和用于捕获和保持闩锁的电磁体（183）以使闩锁从致动器臂脱离。提供弹簧（188）以偏置闩锁以与致动器臂接合。旋转板（194）设置在闩锁机构上，电磁铁捕获旋转板; 特别地，电磁体具有两极（190a和190b），旋转板接触其中一个极，并且旋转板和另一个极之间存在气隙。气隙允许电磁铁释放旋转板。旋转板的旋转动作使得旋转板与电磁体的一个极的整个表面对准，增加了一旦旋转板被捕获，电磁体就可以保持旋转板的能力。

63. 发明专利

DE69027853T2 未知
公开(公告)号：DE69027853T2
公开(公告)日：1997-02-13
申请号：DE69027853
申请日：1990-12-28
申请人： CONNER PERIPHERALS INC
发明人： NAYAK ASHOK B , KUKREJA JAGMOHAN S
IPC分类号： G11B21/20 , G11B5/584
摘要： Apparatus for orienting a magnetic tape head in a tape drive assembly adapted to receive a magnetic tape with tracks thereon, the apparatus comprises a frame having plate support means, and a shaft member having an axis and mounted for rotation about its axis on the plate support means. The shaft member has a first end pivotably mounted on the plate support means, and a second end mounted on the plate support means and movable relative thereto, such movement causing pivoting of the shaft member at its first end. No apparatus includes a motor for rotating the shaft member about its axis, and a head carriage assembly including magnetic tape head mounted on the shaft member, the head being positioned in the tape drive assembly such that the head lies adjacent magnetic tape adapted to be received in the tape drive assembly. The head carriage assembly being movable over the shaft member in response to rotation whereby the head moves linearly in a direction substantially normal to movement of the tape to permit the head to locate and align with the tracks on the tape. An adjuster member is provided, having a securing portion adapted to be moved with respect to and secured to the plate support, and a connecting portion adapted to engage and move the second end of the shaft member. Movement of the securing portion adjusts the orientation of the shaft member and head carriage assembly, and the securing portion is firmly secured to the plate support when the head is in a desired orientation. The invention also comprises apparatus for precise positioning of a tape head at a track on magnetic tape adapted to be received in a drive assembly having a memory and a motor, the apparatus comprising a laser source for emitting a laser beam, a mounting tray for the tape drive assembly, a reflector member for mounting on the tape head for movement therewith, and means for directing the laser beam from the laser source to the reflector. Means associated with the laser source for accurately measuring the distance travelled by the tape head from a predetermined point to a position adjacent a track on the magnetic tape are provided. Further, the invention includes means for determining the extent of movement of the motor for the distance travelled by the tape head, and programming means for programming the tape drive assembly memory with the extent of such movement.

64. 发明专利

DE69121892T2 未知
公开(公告)号：DE69121892T2
公开(公告)日：1997-01-23
申请号：DE69121892
申请日：1991-05-22
申请人： CONNER PERIPHERALS INC
发明人： STEFANSKY FREDERICK
IPC分类号： G11B19/20 , G11B33/12 , H02K5/173 , H02K5/24 , H02K7/16
摘要： A low noise spin motor for use in a disk drive includes two bearings having different inside diameters, different outside diameters, and preferably the same size balls. The balls in the larger bearing travel at a faster speed thereby increasing the noise frequencies and resonant frequency as compared to the smaller frequency whereby the noise from the two bearings is not compounded. A small and compact disk drive using the spin motor is described.

65. 发明专利

DE3751897D1 未知
公开(公告)号：DE3751897D1
公开(公告)日：1996-10-10
申请号：DE3751897
申请日：1987-10-06
申请人： CONNER PERIPHERALS INC
发明人： BOLT MICHAEL LOREN , SOKOLIK EDMUND LOUIS
IPC分类号： G11B5/127 , G11B5/147 , G11B5/23 , G11B5/245 , G11B5/48
摘要： A magnetic core structure for a transducer head for digital data storage, particularly on tape, has a magnetic circuit having a gap (16,116) and a write pole (12) extending across the whole width of the gap and a read pole (14) divided into a medial strata (20;120) and two flanking strata (18,22;118,122) which overlap the medial strata over limited areas (A) in which areas there is non-magnetic isolation means (24,26;124,126). The areas (A) are limited in size to an amount which limits the transfer of magnetic flux from the flanking strata (18,22;118,122) to the medial strata (20;120) through the isolation means (24,26;124,126) at said areas to less than about ten percent of the total magnetic flux in the magnetic circuit.

66. 发明专利

CA1338612C STATIONARY HEAD CARTRIDGE TAPE DRIVE WITH MOVABLE X-Y TABLE AND METHOD 未知
公开(公告)号：CA1338612C
公开(公告)日：1996-09-24
申请号：CA613601
申请日：1989-09-27
申请人： CONNER PERIPHERALS INC
发明人： KUKREJA JAGMOHAN S , BUCKLAND KURT A
IPC分类号： G11B15/18 , G11B15/675
摘要： The present invention is an end loaded tape drive for an elongate tape cartridge having a door in one of its sides proximate one end of the cartridge. The tape drive includes an elongate table mounted at least partially within an elongate housing upon which the cartridge may rest. The table is movable in an x-y plane defined by an x axis and a y axis. The drive includes a magnetic head which is fixed against movement in an x-y plane . A cartridge door opening mechanism is provided for opening the access door of the cartridge sufficiently to provide access to the tape by the magnetic head. Movement of the table in the y direction actuates the door opening mechanism and movement of the table in the x direction positions the tape in a read/write position. A motor is further provided for moving the length of tape within the cartridge along the magnetic head when the tape is in the read/write position.

67. 发明专利

DE69028064D1 未知
公开(公告)号：DE69028064D1
公开(公告)日：1996-09-19
申请号：DE69028064
申请日：1990-02-28
申请人： CONNER PERIPHERALS INC
发明人： SHEEHAN MICHAEL SCOTT , QUINTUS JOHN , VU TUONG
IPC分类号： G11B5/008 , G11B5/035 , G11B5/09
摘要： An apparatus and a method for calibrating the write current applied to a write head (110, 114) in a tape drive (100) finds the peak value of the write current applied to the tape head (110, 114) (i.e., the write current value providing the maximum read voltage amplitude on a tape (104)) by indirectly measuring the voltage sensed by a read head (112, 115). The apparatus includes a digital write current control circuit (170, 160) that applies a write current having a magnitude responsive to a digital write current value. An amplifier (190) in a read circuit (180, 182, 184, 190, 196) has a gain responsive to a digital read gain value. The method includes the steps of sampling the output of a pattern detector (146) (e.g., a gap detector) as the digital read gain value is adjusted for each of a number of digital write current data values applied to the write current control circuit (170, 160). The digital read gain value is adjusted to provide a predetermined range of the number of samples wherein the pattern corresponds to a predetermined pattern. The digital read gain value for each digital write current value is inversely related to the amplitude of the signal recorded on the tape (104). The sampled digital read voltage gain values are then stored. The digital write current value corresponding to the minimum stored digital read gain value also corresponds to the peak value of the actual write current. The digital write current value corresponding to the minimum digital read voltage gain value is then selected and stored as the calibrated digital write current.

68. 发明专利

DE69025077T2 未知
公开(公告)号：DE69025077T2
公开(公告)日：1996-05-30
申请号：DE69025077
申请日：1990-08-22
申请人： CONNER PERIPHERALS INC
发明人： SQUIRES JOHN
IPC分类号： G11B5/596 , G11B21/10
摘要： The disk drive system includes an actuator, responsive to an adjustment value, for adjusting the position of a data head with respect to data tracks located on the surface of a disk, and a controller coupled to the data head and to the actuator. The controller receives servo information read from the surface of the disk by the data head. In turn, the controller determines an adjustment value to be applied to the actuator. The adjustment value is calculated dependent on a predetermined variable gain factor. Where the controller determines the position of the heat is oscillating about the center line of a predetermined data track at a frequenc above a predetermined frequency, the controller reduces the gain factor applied in determining the adjustment value.

69. 发明专利

DE68925035T2 未知
公开(公告)号：DE68925035T2
公开(公告)日：1996-04-25
申请号：DE68925035
申请日：1989-10-27
申请人： CONNER PERIPHERALS INC
发明人： STEFANSKY FREDERICK
IPC分类号： G11B21/02 , G11B21/12 , G11B21/22

70. 发明专利

DE69025077D1 未知
公开(公告)号：DE69025077D1
公开(公告)日：1996-03-07
申请号：DE69025077
申请日：1990-08-22
申请人： CONNER PERIPHERALS INC
发明人： SQUIRES JOHN
IPC分类号： G11B5/596 , G11B21/10
摘要： The disk drive system includes an actuator, responsive to an adjustment value, for adjusting the position of a data head with respect to data tracks located on the surface of a disk, and a controller coupled to the data head and to the actuator. The controller receives servo information read from the surface of the disk by the data head. In turn, the controller determines an adjustment value to be applied to the actuator. The adjustment value is calculated dependent on a predetermined variable gain factor. Where the controller determines the position of the heat is oscillating about the center line of a predetermined data track at a frequenc above a predetermined frequency, the controller reduces the gain factor applied in determining the adjustment value.

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