-
1.发明授权Method and apparatus for controlling media linear speed in a helical scan recorder by reading servo information just after writing the servo information 失效用于通过在写入伺服信息之后读取伺服信息来控制螺旋扫描记录器中的介质线速度的方法和装置
公开(公告)号：US5680269A
公开(公告)日：1997-10-21
申请号：US337620
申请日：1994-11-10
IPC分类号： G11B5/584 , G11B5/008 , G11B5/53 , G11B15/02 , G11B15/087 , G11B15/12 , G11B15/14 , G11B15/18 , G11B15/32 , G11B15/43 , G11B15/467 , G11B15/52 , G11B21/04 , G11B27/30
CPC分类号： G11B15/32 , G11B15/026 , G11B15/087 , G11B15/125 , G11B15/14 , G11B15/1875 , G11B15/43 , G11B15/4678 , G11B15/52 , G11B21/04 , G11B27/3027 , G11B5/534 , G11B5/0086
摘要： In a helical scan system for recording information on a storage media in a series of helical tracks, servo information written on the tracks is used to control linear velocity of the media during a write operation. Helical scan system includes a rotating drum upon which write heads and read heads circumferentially are mounted. The write heads and the read heads are positioned on the drum so that during a drum revolution a read head reads servo information recorded on a track at least 1.5 track pitches upstream from the most recently recorded track. A servo controller analyzes, during the recording operation, servo information read back by the read head subsequent to recording thereof by write head. Servo controller uses the servo information read by the read head to generate a signal for application to a motor for controlling linear velocity of the media during the write operation.
摘要翻译： 在用于在一系列螺旋轨道中的存储介质上记录信息的螺旋扫描系统中，使用写在轨道上的伺服信息来在写入操作期间控制介质的线速度。 螺旋扫描系统包括旋转鼓，圆盘上安装有写入头和读头。 写头和读头位于鼓上，使得在滚筒革命期间，读取头读取记录在轨道上的伺服信息，其中最近记录的轨道上游至少有1.5个轨距。 伺服控制器在记录操作期间分析由读写头在通过写入头记录之后由读取头读回的伺服信息。 伺服控制器使用由读取头读取的伺服信息来产生用于在写入操作期间控制介质的线速度的电动机的信号。
-
公开(公告)号：US5726826A
公开(公告)日：1998-03-10
申请号：US469865
申请日：1995-06-06
CPC分类号： G11B15/32 , G11B15/026 , G11B15/087 , G11B15/43 , G11B15/52 , G11B5/0086
摘要： A capstanless helical scan recording system (14) comprises a supply reel (24); a take-up reel (26); and a media transport path (20) extending from the supply reel to the take-up reel. A drum (30) is positioned along the media transport path and has a read head (R1,R2) and a write head (W1,W2) mounted thereon for recording and reading information in helical stripes on the media. The take-up reel comprises a rotor assembly (60), a rotating hub assembly (70), and a gearing system. The rotor assembly includes a sun gear (80) which rotates at a first rotational speed. The rotating hub assembly rotates carries three planetary gears (160) and imparts a velocity to media transported in the media transport path. The gearing system meshes with the rotor assembly and with the hub assembly for causing the hub assembly to have a greater rotational speed than the rotor assembly. The gearing system preferably has a gear ratio on the order of about 8:1. A tension arm (44) protrudes into the media transport path and decouples the supply reel to compensate for reel runnout during high speed operation. The system has no further means other than the take-up reel and the supply reel for imparting impetus to the media along the media transport path.
摘要翻译： 无绞盘螺旋扫描记录系统（14）包括供带盘（24）; 卷取卷轴（26）; 以及从供应卷轴延伸到卷取卷轴的介质传送路径（20）。 鼓（30）沿着媒体传送路径定位，并具有安装在其上的读取头（R1，R2）和写入头（W1，W2），用于在介质上记录和读取螺旋状的信息。 卷取卷轴包括转子组件（60），旋转轮毂组件（70）和传动系统。 转子组件包括以第一转速旋转的太阳齿轮（80）。 旋转轮毂组件旋转运送三个行星齿轮（160），并将速度赋予在介质输送路径中传送的介质。 齿轮系统与转子组件和轮毂组件啮合，以使轮毂组件具有比转子组件更大的旋转速度。 齿轮传动系统优选具有约8:1量级的传动比。 张力臂（44）突出到介质输送路径中，并且在高速运行期间使供给卷轴解耦以补偿卷轴运行。 该系统除了用于沿着媒体传送路径向介质施加动力的卷带盘和供带盘之外没有其它装置。
-
公开(公告)号：US4502647A
公开(公告)日：1985-03-05
申请号：US454227
申请日：1982-12-29
申请人： James Zweighaft , Steven P. Georgis
发明人： James Zweighaft , Steven P. Georgis
CPC分类号： G11B15/67
摘要： A method and system for detecting tape attachment to a machine reel of an automatically threading magnetic tape system. During the threading process, a file reel is rotated to allow a sufficient length of tape to be unwound therefrom, which length of tape eventually attaches to the machine reel after being automatically threaded through the desired tape path. The rotation of the file reel is maintained during this threading process by delivering current pulses to a file reel motor. These current pulses are counted per unit time. As soon as the tape attaches to the machine reel, the machine reel begins to pull the tape from the file reel, thereby eliminating the need to deliver current pulses to the file reel motor, at the same rate as needed prior to tape attachment. A change in the rate of the current pulses delivered to the file reel motor signals a tape attached condition.
摘要翻译： 一种用于检测磁带附着到自动穿线磁带系统的机器卷轴的方法和系统。 在螺纹加工期间，文件卷轴旋转以允许从其中退出足够长的带，这些长度的带最后在自动穿过期望的带路径之后附接到机器卷轴。 通过将文件卷轴的电流脉冲传送到文件卷轴电机，在该螺纹加工过程中保持文件卷轴的旋转。 每单位时间计算这些电流脉冲。 一旦磁带连接到机器卷轴，机器卷轴开始从文件卷轴拉动胶带，从而不需要在磁带附着之前以与需要相同的速率将文件卷轴电机传送电流脉冲。 传送到文件卷轴电机的当前脉冲速率的变化表示磁带附着状态。
-
公开(公告)号：US5068757A
公开(公告)日：1991-11-26
申请号：US433977
申请日：1989-11-09
IPC分类号： G11B5/588 , G11B15/467
CPC分类号： G11B5/588
摘要： In a servo tracking method and apparatus, a servo head (S) of a helical scan recorder (30) endeavors to travel equidistant between two servo signal-bearing stripes recorded on the tape (32). The recorder (30) determines a reference-crossing time at which the servo head (S) begins to cross a horizontal reference line (606) drawn with respect to the beginning of a stripe on the tape (32). The servo head (S) samples the amplitude of a servo signal provided on the tape (32) at a plurality of predetermined times after the reference-crossing time. A servo tracking circuit (175) uses the amplitude of the servo signal at the predetermined sampling times to determine how to adjust the position of said head (S) relative to the pitch of said stripe.
摘要翻译： 在伺服跟踪方法和装置中，螺旋扫描记录器（30）的伺服头（S）在记录在带子（32）上的两个伺服信号承载条带之间等距移动。 记录器（30）确定伺服头（S）开始穿过相对于带（32）上的条纹开头绘制的水平参考线（606）的参考交叉时间。 伺服头（S）在参考交叉时间之后的多个预定时间对提供在带（32）上的伺服信号的振幅进行采样。 伺服跟踪电路（175）使用在预定采样时间的伺服信号的振幅来确定如何调节所述磁头（S）相对于所述磁条间距的位置。
-
公开(公告)号：US5142422A
公开(公告)日：1992-08-25
申请号：US670404
申请日：1991-03-15
申请人： Christopher P. Zook , Robert Bordasch , Steven P. Georgis , Alireza Atai-Azimi , Christopher Pisciotta , Steve E. Haughland , Timothy C. Hughes
发明人： Christopher P. Zook , Robert Bordasch , Steven P. Georgis , Alireza Atai-Azimi , Christopher Pisciotta , Steve E. Haughland , Timothy C. Hughes
CPC分类号： G11B20/1883 , G11B20/1209 , G11B5/00865 , G11B5/09 , G11B2020/183 , G11B2220/90
摘要： A dual channel helical scan recording system (30) includes a rotating dum (36) having sets of heads (W1, W2) (R1, R2) mounted on its peripheral surface (56). A set of write heads (W1, W2) is situated on an opposite side of the drum (36) from a set of read heads (R1, R2). The write heads (W1, W2) simultaneously write two adjaent tracks (T1, T2), which are read for verification 180 detrees later by corresponding read heads (R1, R2). The heads (W1, W2, R1, R2) are strategically mounted on the drum (36) with respect to angular and axial placement, and have selected head widths and azimuthal angles. Should a block of data (317) written to tape (32) be determined, during readback, to be bad block, that bad block is subsequently rewritten on the tape (32) in the course of writing good blocks and amongst other good blocks. The rewritten block is recorded at a row position on the tape which is sufficiently displaced from the row position of a previous writing to avoid media defects occuring on the tape. In addition, a block written by a first write head (W1) and perceived as having been written as a bad block must be written by a second write head (W2) before that block is rewritten a predetermined number of times.
摘要翻译： 双通道螺旋扫描记录系统（30）包括具有安装在其外周表面（56）上的一组头（W1，W2）（R1，R2）的旋转转台（36）。 一组写头（W1，W2）位于鼓（36）的与一组读头（R1，R2）相反的一侧。 写入头（W1，W2）同时写入两个相邻磁道（T1，T2），后者由对应的读取头（R1，R2）进行读取。 头部（W1，W2，R1，R2）相对于角度和轴向布置策略地安装在滚筒（36）上，并且具有选择的头部宽度和方位角。 如果写入磁带（32）的数据块（317）在回读期间被确定为坏块，那么在编写好块和其它好的块之间，该坏块随后被重写在磁带（32）上。 重写的块被记录在磁带上的行位置，该行位置从先前写入的行位置充分移位，以避免磁带上出现介质缺陷。 此外，由第一写入头（W1）写入并且被感知为被写入坏块的块必须在该块被重写预定次数之前由第二写入头（W2）写入。
-
6.发明授权Method and apparatus for synchronizing timing signals for helical scan recorder 失效用于同步呼叫记录仪的时序信号的方法和装置
公开(公告)号：US5065261A
公开(公告)日：1991-11-12
申请号：US434008
申请日：1989-11-09
IPC分类号： G11B15/467 , G11B20/10 , G11B20/12 , G11B27/10 , G11B27/30
CPC分类号： G11B20/1209 , G11B20/10 , G11B27/10 , G11B27/3027 , G11B2220/90
摘要： Method and apparatus are provided for developing a digital timing signal indicative of when a head of a helical scan recorder (30) is positioned over a recorded stripe on magnetic tape (32). The method involves rotating a drum (36) upon which a head is mounted while the magnetic tape (32) is transported past the drum at a speed greater than the nominal speed at which stripes were recorded on the tape. Given the geometry of the system and format of the tape, the head is eventually able to recognize a pattern of digital data. The timing of the recognition of the pattern of digital data is used to determine the precise time, relative to each rotation of the drum (36), that the head ceases to traverse a stripe and the precise time during each rotation of the drum that the head begins to traverse a stripe. The determination of the edges of the digital timing signal is repeated upon every rotation of the drum (36). A servo timing signal for a servo head (also mounted on the drum) is generated in ninty (90) degree phase relationship to the digital timing signal.
摘要翻译： 提供了用于开发数字定时信号的方法和装置，该数字定时信号指示螺旋扫描记录器（30）的头部何时位于磁带（32）上的记录条纹上方。 该方法包括在磁带（32）以大于记录条带的标称速度的速度传送通过滚筒的情况下旋转安装有磁头的磁鼓（36）。 给定系统的几何形状和磁带的格式，磁头最终能够识别数字数据的模式。 识别数字数据图形的时间被用于确定相对于滚筒（36）的每次旋转的精确时间，头部停止穿过条纹，并且滚筒的每次旋转期间的精确时间 头开始穿过条纹。 在滚筒（36）的每次旋转时重复确定数字定时信号的边缘。 用于伺服头（也安装在滚筒上）的伺服定时信号与数字定时信号以90度相位关系产生。
-
公开(公告)号：US20080101008A1
公开(公告)日：2008-05-01
申请号：US11865473
申请日：2007-10-01
CPC分类号： G11B33/122 , G11B33/08 , G11B33/124
摘要： According to the invention, a removable rotational disk storage cartridge for storing computer readable data is disclosed. The cartridge may include a chassis, a shock absorption media and a rotational storage disk. The chassis may define an interior space and may be configured to be detachably and mechanically coupled with a cartridge drive. The shock absorption media may be deposited at least partially within the interior space of the chassis and may be a flexible material. The rotational storage disk may be configured to store computer readable data and may be deposited at least partially within the shock absorption media.
摘要翻译： 根据本发明，公开了一种用于存储计算机可读数据的可移动旋转盘存储盒。 盒可以包括底盘，减震介质和旋转存储盘。 底盘可以限定内部空间并且可以被配置为可拆卸地和机械地联接盒驱动器。 减震介质可以至少部分地沉积在底盘的内部空间内，并且可以是柔性材料。 旋转存储盘可以被配置为存储计算机可读数据，并且可以至少部分地沉积在减震介质内。
-
公开(公告)号：US06975789B2
公开(公告)日：2005-12-13
申请号：US10748535
申请日：2003-12-29
CPC分类号： G02B6/352 , G02B6/29307 , G02B6/29308 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/29373 , G02B6/2938 , G02B6/29383 , G02B6/29395 , G02B6/29397 , G02B6/3522 , G02B6/3548 , G02B6/356 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0212 , H04J14/0213 , H04J14/0283 , H04J14/0291 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0035
摘要： A wavelength router that selectively directs spectral bands between an input port and a set of output ports. The router includes a free-space optical train disposed between the input ports and said output ports, and a routing mechanism. The free-space optical train can include air-spaced elements or can be of generally monolithic construction. The optical train includes a dispersive element such as a diffraction grating, and is configured so that the light from the input port encounters the dispersive element twice before reaching any of the output ports. The routing mechanism includes one or more routing elements and cooperates with the other elements in the optical train to provide optical paths that couple desired subsets of the spectral bands to desired output ports. The routing elements are disposed to intercept the different spectral bands after they have been spatially separated by their first encounter with the dispersive element.
摘要翻译： 波长路由器，可选择性地在输入端口和一组输出端口之间引导频谱带。 路由器包括设置在输入端口和所述输出端口之间的自由空间光学列表，以及路由机制。 自由空间光学列车可以包括空气间隔元件或者可以是大体上整体的结构。 光学系列包括诸如衍射光栅的分散元件，并且被配置为使得来自输入端口的光在到达任何输出端口之前遇到色散元件两次。 路由机制包括一个或多个路由选择单元，并且与光学列车中的其它元件配合，以提供将期望的频谱带子集合到期望的输出端口的光路。 路由元件设置成在通过与色散元件的第一次相遇之后它们已被空间分离之后截取不同的光谱带。
-
公开(公告)号：US6128698A
公开(公告)日：2000-10-03
申请号：US905326
申请日：1997-08-04
申请人： Steven P. Georgis
发明人： Steven P. Georgis
IPC分类号： G06F12/00
CPC分类号： G06F3/0661 , G06F11/1456 , G06F3/0607 , G06F3/0664 , G06F3/0674 , G06F3/0682
摘要： A tape drive emulator (30) is between a host computer (40) and a removable disk drive (22) and appears to the host computer 40 as a sequential storage system, e.g., a tape drive. However, the tape drive emulator (30) processes the data obtained from or applied to host computer 40 so that the data can be communicated to removable disk drive 22 in a manner compatible with a conventional removable disk drive. Yet in so doing, tape drive emulator 30 imposes on the data (1) an data organization, imperceptible to disk drive 22, for rendering the data expressable and locatable in a tape drive format, and (2) an additional degree of error correction that provides enhanced data integrity necessary for data backup/restore operations.
摘要翻译： 磁带驱动器仿真器（30）位于主计算机（40）和可移动磁盘驱动器（22）之间，并且作为顺序存储系统（例如磁带驱动器）呈现给主计算机40。 然而，磁带驱动器仿真器（30）处理从主计算机40获得或应用于主计算机40的数据，使得可以以与常规可移动磁盘驱动器兼容的方式将数据传送到可移动磁盘驱动器22。 在这样做的过程中，磁带驱动器仿真器30对数据（1）施加磁盘驱动器22不可察觉的数据组织，用于使数据可表达和定位成磁带驱动器格式，以及（2）附加的纠错程度 提供数据备份/还原操作所需的增强数据完整性。
-
公开(公告)号：US20090310253A1
公开(公告)日：2009-12-17
申请号：US12117507
申请日：2008-05-08
申请人： Steven P. Georgis
发明人： Steven P. Georgis
IPC分类号： G11B15/68
CPC分类号： G11B33/122 , G11B23/0303 , G11B25/043 , G11B33/025 , G11B33/12
摘要： According to the invention, an electronic data storage cartridge for removable coupling to a computing system is disclosed. The electronic data storage cartridge includes a cartridge body, a connector, an optical waveguide, a hard disk drive, and a mechanical write-protect switch that prevents modification of information on the hard disk drive when active. The cartridge body includes at least two outer surfaces. The connector can be used for removable coupling to the computing system, where the connector couples information outside the cartridge body. The optical waveguide is configured to couple light between the two outer surfaces. The hard drive is coupled to the connector.
摘要翻译： 根据本发明，公开了一种用于可移除耦合到计算系统的电子数据存储盒。 电子数据存储盒包括盒主体，连接器，光波导，硬盘驱动器和机械写保护开关，其防止当活动时修改硬盘驱动器上的信息。 盒体包括至少两个外表面。 连接器可以用于可移动地连接到计算系统，其中连接器将信息耦合到盒体外部。 光波导被配置为在两个外表面之间耦合光。 硬盘驱动器连接到连接器。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.024 秒)
