A BRUSHLESS DIRECT CURRENT MOTOR WITH INVERTED MAGNET CUP
    11.
    发明申请
    A BRUSHLESS DIRECT CURRENT MOTOR WITH INVERTED MAGNET CUP 审中-公开
    无刷直流电动机与反相磁力杯

    公开(公告)号:WO1984001863A1

    公开(公告)日:1984-05-10

    申请号:PCT/US1983001613

    申请日:1983-10-13

    CPC classification number: G11B19/2009 H02K15/165

    Abstract: A brushless direct current motor with the rotating magnet cup (43) permanently attached to the spindle hub (11). After attachment, the combination spindle hub and magnet cup are affixed to a shaft (10) and the resulting subassembly is dynamically balanced. The motor using this balanced subassembly is assembled with no balancing required after assembly. The motor can also be disassembled for repair and reassembled without disturbing the dynamic balance. The motor is especially useful for disk drive applications.

    Abstract translation: 一种无刷直流电动机,其具有永久地附接到主轴毂(11)上的旋转磁体杯(43)。 在安装之后,组合主轴毂和磁体杯固定到轴(10),并且所得到的子组件被动态平衡。 使用这种平衡子组件的电机组装后,在组装后不需要平衡。 电动机也可以拆卸进行维修,重新组装,不会影响动平衡。 电机对于磁盘驱动器应用特别有用。

    A SYSTEM AND METHOD FOR ORGANIZING AND MANAGING DATA STORED ON AN INFORMATIONAL DISK
    12.
    发明申请
    A SYSTEM AND METHOD FOR ORGANIZING AND MANAGING DATA STORED ON AN INFORMATIONAL DISK 审中-公开
    用于组织和管理存储在信息盘上的数据的系统和方法

    公开(公告)号:WO1984004990A1

    公开(公告)日:1984-12-20

    申请号:PCT/US1984000817

    申请日:1984-05-25

    Abstract: A system and method for organizing data on a removable optical disk. The surface area of the disk is divided into concentric data bands (12, 13, 14), each comprising sufficient disk surface area upon which a large number of concentric data tracks may be written. Concentric servo tracks (16, 17, 18), wider than the data tracks, are used to separate adjacent data bands. Each data band utilizes one data track (62) as an address track upon which data identifying the particular data band is pre-written. One data band (60) is set aside as an index band into which indexing information, identifying what data is written in each band, may be written. A desired data record or file can be quickly accessed by first using the index band to identify the address of the band where the desired data is located, and then by directly and rapidly accessing the identified band.

    Abstract translation: 一种用于在可移动光盘上组织数据的系统和方法。 盘的表面积被分成同心数据带(12,13,14),每个数据带都包括足够的盘表面积,可以写入大量的同心数据轨道。 使用比数据轨道更宽的同心伺服磁道(16,17,18)来分隔相邻的数据带。 每个数据带使用一个数据轨道(62)作为地址轨道,在该地址轨道上预先写入标识特定数据频带的数据。 一个数据频带(60)作为索引频带被放置,可以写入标识在每个频带中写入数据的索引信息。 可以通过首先使用索引带来识别期望数据所在的频带的地址,然后通过直接和快速地访问所识别的频带来快速访问期望的数据记录或文件。

    RECORDING DISK LOAD AND UNLOAD APPARATUS
    13.
    发明申请
    RECORDING DISK LOAD AND UNLOAD APPARATUS 审中-公开
    记录盘装载和卸载装置

    公开(公告)号:WO1984004847A1

    公开(公告)日:1984-12-06

    申请号:PCT/US1984000816

    申请日:1984-05-25

    CPC classification number: G11B17/049

    Abstract: An automatic load/unload apparatus (1) for handling of workpieces that must be removed from protective cartridges prior to use. In particular, the workpiece to be handled is an optical disk adapted for use in an optical disk information storage device. The load/unload apparatus includes a guide frame (2), a cartridge pull-in tray (3), a cartridge insert separator (4), reciprocating means (35) for moving the pull-in tray and separator, and an elevator assembly (5). During a load operation, the cartridge (15) is inserted into the information storage device wherein the load/unload apparatus is housed. The cartridge is received in the guide frame and opened, allowing the pull-in tray to be slidably removed. The disk is separated from the pull-in tray and raised by the elevator assembly to a desired position. An unload operation proceeds in a reverse sequence.

    COARSE POSITION ERROR SIGNAL GENERATION IN AN OPTICAL DISK STORAGE SYSTEM EMPLOYING COARSE SERVO TRACKS
    14.
    发明申请
    COARSE POSITION ERROR SIGNAL GENERATION IN AN OPTICAL DISK STORAGE SYSTEM EMPLOYING COARSE SERVO TRACKS 审中-公开
    使用COARSE SERVO TRACKS的光盘存储系统中的粗略位置错误信号产生

    公开(公告)号:WO1984004844A1

    公开(公告)日:1984-12-06

    申请号:PCT/US1984000809

    申请日:1984-05-24

    CPC classification number: G11B7/08517 G11B7/08588

    Abstract: A linear detector (61) for use in a coarse positioning servo system of an optical system. The linear detector produces an error signal having an amplitude linearly proportional to the distance that a relatively narrow strip of light energy (63) falls on a collection surface (62) of the detector as measured relative to a fixed reference point on said collection surface. Two reference signals (65, 66) are derived from circuitry associated with the collection surface. A frist reference signal (65) has an amplitude proportional to the intensity of the focussed light energy and the location that said light energy falls on the collection surface relative to a first reference point. A second reference signal (66) has an amplitude proportional to the intensity of the focussed light energy and the location that said light energy falls on the collection surface relative to a second reference point. The sum and difference of the amplitudes of the first and second reference signals are derived to produce sum and different signals, respectively. The difference signal is divided by the sum signal to produce the desired error signal (67), which error signal has an amplitude that is substantially independent of the intensity of the focused light energy.

    Abstract translation: 一种用于光学系统的粗定位伺服系统的线性检测器(61)。 线性检测器产生一个误差信号,该误差信号具有与相对较窄的光能条(63)相对于所述收集表面上的固定参考点测量的检测器的收集表面(62)的距离成线性比例的幅度。 两个参考信号(65,66)源自与收集表面相关联的电路。 第一参考信号(65)具有与聚焦光能的强度成比例的幅度和所述光能相对于第一参考点落在收集表面上的位置。 第二参考信号(66)具有与聚焦光能的强度成比例的幅度和所述光能相对于第二参考点落在收集表面上的位置。 导出第一参考信号和第二参考信号的振幅的和差,以分别产生和和不同的信号。 差分信号除以和信号以产生所需的误差信号(67),该误差信号的幅度基本上与聚焦光能的强度无关。

    FLEXIBLE HUB FOR REMOVABLE DISK
    15.
    发明申请
    FLEXIBLE HUB FOR REMOVABLE DISK 审中-公开
    灵活的可拆卸磁盘库

    公开(公告)号:WO1984004839A1

    公开(公告)日:1984-12-06

    申请号:PCT/US1984000818

    申请日:1984-05-25

    CPC classification number: G11B23/0035 G11B17/0281

    Abstract: A flexible hub for a disk (2). The disk includes a relatively large center hole into which a flexible planar member (6) is mounted or clamped. The size of the flexible member is slightly larger than the hole, thereby requiring that the flexible member be slightly bowed or flexed in order for it to fit within the hole. The flexible member is preferably attached to the disk at three respective qui-angularly spaced locations (40) around the periphery of the hole. In the center of the flexible member is a collar (7) adapted to receive a protruding spindle neck (28) from a spindle mechanism upon which the disk is mounted. The end of the spindle neck and the inside wall of the collar are tapered at the same angle. Insertion of the spindle neck into the colar thereby forces alignment or centering of the center of the collar with the longitudinal axis (8) of the spindle neck.

    SYNC PATTERN ENCODING SYSTEM FOR DATA SECTORS WRITTEN ON A STORAGE MEDIUM
    16.
    发明申请
    SYNC PATTERN ENCODING SYSTEM FOR DATA SECTORS WRITTEN ON A STORAGE MEDIUM 审中-公开
    存储介质上的数据区同步编码系统

    公开(公告)号:WO1985001402A1

    公开(公告)日:1985-03-28

    申请号:PCT/US1984001516

    申请日:1984-09-18

    Abstract: A system and method for generating a unique sync pattern that may be appended to a selected data sector of a disk storage system (20). The data to be stored in the disk storage system is encoded in accordance with a desired fixed rate run-length limited code, such as a 2-7 code. The unique sync pattern is generated by first encoding a prescribed data word (BF7A) in accordance with the desired code. At least one bit of the encoded prescribed data word is then changed in a manner such that the changed encoded word still complies with the coding rules of the desired code, yet the resulting bit pattern does not represent any valid sequence of data in accordance with the desired code. Hence, the changed encoded word may be readily distinguished from data using sync detect logic (204), thereby providing the synchronization function, while still being handled and processed by the same encoding/decoding circuitry (136, 137) as is employed to handle and process the data.

    Abstract translation: 一种用于生成可以附加到盘存储系统(20)的所选数据扇区的唯一同步模式的系统和方法。 要存储在磁盘存储系统中的数据根据​​期望的固定速率游程限制码(例如2-7码)进行编码。 通过根据期望的代码对规定数据字(BF7A)进行第一次编码来生成唯一同步模式。 编码的规定数据字的至少一位然后以使得改变的编码字仍然符合所需码的编码规则的方式改变,但是所得到的位模式不表示任何有效的数据序列, 所需代码。 因此,改变的编码字可以容易地与使用同步检测逻辑(204)的数据区分开来,从而提供同步功能,同时仍然被处理和处理由相同的编码/解码电路(136,137)处理和处理, 处理数据。

    A MULTIPLE-PATH DICHROIC OPTICAL BEAM SPLITTER
    18.
    发明申请
    A MULTIPLE-PATH DICHROIC OPTICAL BEAM SPLITTER 审中-公开
    多通道双光束光束分离器

    公开(公告)号:WO1985001590A1

    公开(公告)日:1985-04-11

    申请号:PCT/US1984001590

    申请日:1984-10-03

    CPC classification number: G02B27/145 G02B27/283

    Abstract: A dichroic beam splitter (13) design comprising a single unit assembly having a reduced number of components to provide for diminished weight and bulk, simplicity of alignment, greater optical efficiency and fewer steps in the assembly process to produce the device. The beam splitter includes two identical right triangular prisms (14, 17), a parallelogram shaped element (15), and a trapezoidal shaped element (16), all bonded together to form the single, L-shaped, beam splitter (13). High reliability, and ease of identification of component elements due to unique geometry, is provided by this approach. This device is especially useful for computer optical disk storage devices.

    Abstract translation: 二向色分束器(13)设计包括具有减少的部件数量的单个单元组件,以提供减小的重量和体积,对准的简单性,更高的光学效率和在组装过程中较少的步骤以产生该装置。 分束器包括两个相同的直角三角棱镜(14,17),平行四边形形状的元件(15)和梯形形状的元件(16),全部粘合在一起以形成单个L形分束器(13)。 通过这种方法提供了高可靠性和易于识别组件元件由于独特的几何形状。 该设备对于计算机光盘存储设备特别有用。

    OPTICALLY STORING DIGITAL DATA
    19.
    发明申请
    OPTICALLY STORING DIGITAL DATA 审中-公开
    光存储数字数据

    公开(公告)号:WO1985001382A1

    公开(公告)日:1985-03-28

    申请号:PCT/US1984001515

    申请日:1984-09-18

    Abstract: An optical disk drive system with which data may be permanently and correctly stored on removable media. The system includes a drive (20) into which the media, a disk (44) housed in a cartridge (32), my be removably inserted. The drive interfaces with a host CPU (22) through a storage control unit (24), which storage control unit may also have other peripheral devices, such as magnetic disk drives (18), coupled therethrough to the host CPU. A special data format is used for data stored on the disk in order to provide efficient use of and acces to the available storage space. The disk (44) is divided into data bands, each data band having a prescribed number of concentric data tracks therein. Each data track is divided into equal length sectors. The data is organized into data blocks, each block being made up of a selected sequence of prescribed data sections. Many of the data sections commence with synchronization bits followed by the data to be stored. The data of each data section is adapted to fit within each data sector on the disk. When data is written in any given sector, it is immediately checked for correctness by reading the data that has been written and comparing it with the data was to have been written. Defectively written data is flagged so that it can be skipped over and ignored during subsequent reads. Data in a given sector is rewritten until it is written correctly.

    Abstract translation: 数据可以永久正确地存储在可移动介质上的光盘驱动器系统。 该系统包括驱动器(20),介质,容纳在盒(32)中的盘(44))可拆卸地插入其中。 驱动器通过存储控制单元(24)与主机CPU(22)接口,该存储控制单元还可以具有其它外围设备,诸如通过其耦合到主机CPU的磁盘驱动器(18)。 为了提供对可用存储空间的有效使用和访问,使用特殊数据格式存储在磁盘上的数据。 盘(44)被划分为数据带,每个数据带在其中具有规定数量的同心数据轨迹。 每个数据轨道被划分成相等长度的扇区。 数据被组织成数据块,每个块由选定的规定数据段序列组成。 许多数据部分以同步位开始,后跟要存储的数据。 每个数据部分的数据适合于适应磁盘上的每个数据扇区。 当数据写入任何给定的扇区时,通过读取已写入的数据并将其与要写入的数据进行比较,立即检查其是否正确。 标记有缺陷写入的数据,以便在后续读取期间可以跳过并忽略。 给定扇区中的数据被重写,直到写入正确。

    PREFORMATTED DIAGNOSTIC INFORMATION RECORDING DISK
    20.
    发明申请
    PREFORMATTED DIAGNOSTIC INFORMATION RECORDING DISK 审中-公开
    预取诊断信息记录盘

    公开(公告)号:WO1985001381A1

    公开(公告)日:1985-03-28

    申请号:PCT/US1984001513

    申请日:1984-09-18

    Abstract: A preformatted diagnostic information recording disk (1) for use in an optical disk storage and retrieval device for allowing the disks upon which user data is recorded to be used to provide diagnostic information to the device for the automatic performance of diagnostic routines in order to verify proper device operation. The preformatted disk has a plurality of information tracks (4a, 4b, 4c, ...) each having a specific data pattern designed to test for a specific device function. In the preferred embodiment parameters tested include high frequency data recording (track 4a), low frequency data recording (track 4b), rapid variation data recording (tracks 4d, 4e, 4f), DC offset compensation (track 4c), clocking/data recording signal isolation (tracks 4h - 4l), galvo centering verification (track 4p), rapid access functioning, read spot alignment (tracks 4m - 4n), and read/write functioning (area 5).

    Abstract translation: 一种用于光盘存储和检索装置的预格式化诊断信息记录盘(1),用于允许使用记录用户数据的盘来向设备提供用于自动执行诊断例程的诊断信息,以便验证 正确的设备操作。 预格式化的盘具有多个信息轨道(4a,4b,4c,...),每个信息轨道具有设计用于测试特定装置功能的特定数据模式。 在优选实施例中,测试的参数包括高频数据记录(轨道4a),低频数据记录(轨道4b),快速变化数据记录(轨道4d,4e,4f),DC偏移补偿(轨道4c),计时/数据记录 信号隔离(轨道4h - 4l),电流对中验证(轨道4p),快速访问功能,读取点对准(轨道4m-4n)和读/写功能(区域5)。

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