专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07487250B2 Methods and apparatus for directing a flow of data between a client and multiple servers 有权
标题翻译：用于在客户机和多个服务器之间引导数据流的方法和装置
公开(公告)号：US07487250B2
公开(公告)日：2009-02-03
申请号：US11017096
申请日：2004-12-20
申请人： Kenneth P. Siegel
发明人： Kenneth P. Siegel
IPC分类号： G06F15/16
CPC分类号： G11B5/584 , G11B15/08 , G11B15/60
摘要： The invention is directed to techniques for managing communication between a client and multiple servers over a network through an intermediary network device (e.g., content switch). In response to a request for content from a client, the network device selects a server to respond to the request. The network device includes a flow manager that manages the flow of data from the server through the network device to the client. In response to a second request, the network device may select a different server to respond to the request. In this case, the flow manager manages the flow of data from the new server through the network device transparently for the client, so that the client communicates only through the network device regardless of which server is providing the response to the requests.
摘要翻译：本发明涉及用于通过中间网络设备（例如，内容交换机）在网络上管理客户端与多个服务器之间的通信的技术。响应于来自客户端的内容的请求，网络设备选择服务器来响应该请求。网络设备包括流管理器，其管理从服务器通过网络设备到客户端的数据流。响应于第二请求，网络设备可以选择不同的服务器来响应该请求。在这种情况下，流程管理器可以透明地为客户端管理新服务器通过网络设备的数据流，从而客户端只通过网络设备进行通信，无论哪个服务器提供对请求的响应。

2. 发明授权

US06549363B2 Optical servo system for a tape drive 失效
公开(公告)号：US06549363B2
公开(公告)日：2003-04-15
申请号：US10116403
申请日：2002-04-04
申请人： Michael Lawrence Leonhardt , Scott David Wilson
发明人： Michael Lawrence Leonhardt , Scott David Wilson
IPC分类号： G11B555
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.

3. 发明授权

US06480351B2 Optical servo system for a tape drive 有权
公开(公告)号：US06480351B2
公开(公告)日：2002-11-12
申请号：US09775893
申请日：2001-02-05
申请人： Michael Lawrence Leonhardt , Scott David Wilson
发明人： Michael Lawrence Leonhardt , Scott David Wilson
IPC分类号： G11B5584
CPC分类号： G11B27/107 , G11B5/5508 , G11B5/584 , G11B5/588 , G11B15/08 , G11B15/602 , G11B20/00086 , G11B20/0021 , G11B21/085 , G11B21/103 , G11B27/26 , G11B27/36 , G11B2220/90
摘要： The optical servo system for a tape drive that functions to align a read/write head with the data tracks written on a recording surface of a tape by reading optical servo tracks that are formed on the back side of the tape. This process decouples the magnetic recording of data on the recording surface of the tape from the optical servo system which makes use of servo tracks formed on the back side of the tape. The data storage capacity of the tape is increased since the entire recording surface of the tape is filled with data tracks and the precise alignment of the read/write head makes it possible to place the data tracks closer together. Regions of contrasting reflectivity or phase are also provided on a surface of the read/write head to enable the optical servo system to view an image of both the read/write head and the entire back side of the tape to thereby align the movable read/write head with the data tracks.

4. 发明授权

US6091563A Latent illuminance discrimination marker system for data storage cartridges 失效
公开(公告)号：US6091563A
公开(公告)日：2000-07-18
申请号：US936970
申请日：1997-09-26
申请人： Fred C. Thomas, III , Glenn B. Dixon
发明人： Fred C. Thomas, III , Glenn B. Dixon
IPC分类号： G03C1/73 , G06K7/12 , G06K17/00 , G06K19/06 , G06K19/08 , G11B7/0037 , G11B7/24 , G11B15/08 , G11B19/12 , G11B20/00 , G11B23/28 , G11B23/30 , G11B19/02 , G11B33/10
CPC分类号： G11B23/285 , G06K19/06046 , G06K7/12 , G11B15/08 , G11B19/12 , G11B23/30 , G11B20/00086 , G11B7/0037 , G11B7/24
摘要： A data storage cartridge for a data storage disk drive has a latent illuminance marker. A light source illuminates the marker and the marker emits illuminance as phosphorescence. A photosensor detects the emitted illuminance, and the decay time is determined. The decay time is checked to provide identification of different types or generations of data storage cartridges.

5. 发明授权

US5852535A Accurate measurement of preformatted track servo patterns by a magnetic data tape drive 失效
标题翻译：通过磁数据磁带驱动器精确测量预格式轨道伺服模式
公开(公告)号：US5852535A
公开(公告)日：1998-12-22
申请号：US609254
申请日：1996-02-29
申请人： Kenneth G. Richardson , Mark Millican , Erik Habbinga , Mark E. Mills , Stephen G. Uhlmann , Mark E. Nash
发明人： Kenneth G. Richardson , Mark Millican , Erik Habbinga , Mark E. Mills , Stephen G. Uhlmann , Mark E. Nash
IPC分类号： G11B5/027 , G11B5/55 , G11B5/584 , G11B15/08 , G11B5/02
CPC分类号： G11B15/08 , G11B5/5508 , G11B5/584
摘要： A method for reliably measuring preformatted servo patterns, on a magnetic tape, for positioning a magnetic head. The tape has constant frequency stripes marking servo pattern areas. The drive reading the preformatted tape has a read channel amplifier with automatic gain control (AGC). When a stripe is detected, AGC is enabled. Before leaving a stripe, AGC is placed on hold. The amplitudes of two servo bursts are then measured with a gain that has been calibrated by a signal from a stripe. During the time AGC is enabled, the amplifier peak output is limited to less than half the maximum amplifier peak output. The servo pattern signal amplitude is about twice the signal amplitude of a stripe, so that servo patterns are measured with almost the maximum signal-to-noise ratio. When a stripe is detected, a counter counts pulses resulting from the stripe signal, for a fixed time, to ensure that the stripe detection is valid. If the stripe is qualified, the servo pattern measurements are used for head alignment adjustment. If the strip is not qualified, the servo pattern measurements are discarded.
摘要翻译：一种在磁带上可靠地测量用于定位磁头的预格式伺服图案的方法。磁带具有标记伺服图案区域的恒定频率条纹。读取预格式化磁带的驱动器具有带有自动增益控制（AGC）的读通道放大器。检测到条带时，启用AGC。在离开条纹之前，AGC被置于保持状态。然后用已经通过条带的信号校准的增益来测量两个伺服脉冲串的振幅。在启用AGC的时间内，放大器峰值输出被限制为小于最大放大器峰值输出的一半。伺服模式信号幅度约为条纹信号幅度的两倍，从而以几乎最大的信噪比测量伺服模式。当检测到条纹时，计数器对条带信号产生的脉冲计数一定时间，以确保条形检测有效。如果条纹合格，则使用伺服模式测量来进行头部对准调整。如果条带不合格，则丢弃伺服模式测量。

6. 发明授权

US5850980A Tape cassette 失效
标题翻译：磁带盒
公开(公告)号：US5850980A
公开(公告)日：1998-12-22
申请号：US649636
申请日：1996-06-01
申请人： Osamu Koizumi
发明人： Osamu Koizumi
IPC分类号： G11B15/05 , G11B15/08 , G11B23/087 , G11B23/30
CPC分类号： G11B15/05 , G11B15/08 , G11B23/087 , G11B23/30
摘要： A tape cassette provided with a tape member comprised of a magnetic tape connected to transparent leader tapes affixed to a pair of tape reels rotatably supported in a cassette body via connection tapes. In this cassette body, a light emitting element hole is located between the pair of tape reels. Light transmission holes allowing the light from the light emitting element facing the cassette body via the light emitting element hole to pass therethrough out of the cassette body with the tape member interposed therebetween are provided in the side walls orthogonal to the travelling direction of the tape member travelling over the distance between the pair of tape reels. In addition, a tape information display portion is provided in the tape member which indicates the type of the magnetic tape accommodated in the cassette body. This tape information display portion is provided at a leader tape portion positioned between the point of intersection of a line connecting the light emitting element hole and the light transmission holes and the leader tape and the end portion of the connection tape when the member is completely wound around either tape reel. Since the tape information display portion is formed on the leader tape, the amount of light reflected therefrom is not influenced by the connection tape connecting the magnetic tape to the leader tape so as to result in a high degree of precision of the amount of light detected by the light receiving element.
摘要翻译： PCT No.PCT / JP95 / 02001 Sec。 371日期1996年6月1日 102（e）日期1996年6月1日PCT提交1995年9月29日PCT公布。公开号WO96 / 10823 日期1996年4月11日具有磁带构件的磁带盒，磁带构件包括连接到通过连接带可旋转地支撑在盒体中的一对磁带卷的透明导线带的磁带。在该盒体中，发光元件孔位于一对带盘之间。在与带状构件的行进方向正交的侧壁中设置有使来自发光元件的发光元件的光经由发光元件孔从盒体向外通过的状态，行驶在一对磁带盘之间的距离。此外，带状信息显示部分设置在带状部件中，其表示容纳在盒体中的磁带的类型。该磁带信息显示部分设置在位于连接发光元件孔与光传输孔的线的相交点与引导带之间的引导带部分和连接带的端部，当该部件完全卷绕时围绕磁带卷轴。由于磁带信息显示部分形成在引导带上，所以反射的光量不受连接磁带与引导带的连接带的影响，从而导致检测到的光量的高度精度由光接收元件。

7. 发明授权

US5775615A VCR having a reel sensor prism device 失效
标题翻译： VCR具有卷轴传感器棱镜装置
公开(公告)号：US5775615A
公开(公告)日：1998-07-07
申请号：US719071
申请日：1996-09-24
申请人： Seong Ick Ahn
发明人： Seong Ick Ahn
IPC分类号： G11B33/12 , G11B15/02 , G11B15/08 , G11B23/087 , G11B23/08
CPC分类号： G11B15/08 , G11B23/08714
摘要： A VCR has a reel sensor prism device fabricated by being separated into a scattering member and a fixing member. The scattering member includes a cylindrical body part for transmitting light and a head formed to the upper portion of the body part for scattering the light. A fixing member is formed with a center hole of being inserted with the body part of the scattering member, and two pairs of hooks are formed to the lower end. A base for supporting and fixing the fixing member is formed with two pairs of hook holes and a thruhole for passing the light generated from a reel sensor light emitting part therethrough. By this construction, the light generated from the reel sensor light emitting part is prevented from being scattered at the body part to minimize loss of the transmitted light, thereby maximizing the transmitting effect of the light and preventing a malfunction of the VCR. Also, the assembling is completed by fitting the hooks of the fixing member into the hook holes to improve assemblage and productivity.
摘要翻译： VCR具有通过分离成散射构件和固定构件制造的卷轴传感器棱镜装置。散射构件包括用于透射光的圆柱形主体部分和形成在主体部分的上部以用于散射光的头部。固定构件形成有插入散射构件的主体部分的中心孔，并且在下端形成两对钩。用于支撑和固定固定构件的底座形成有两对钩孔和用于使从卷轴传感器发光部分产生的光通过其中的通孔。通过这种结构，防止从卷轴传感器发光部分产生的光在主体部分被散射，以使透射光的损失最小化，从而使光的透射效果最大化并防止VCR的故障。此外，通过将固定构件的钩装配到钩孔中来完成组装以提高组装和生产率。

8. 发明授权

US5617336A Method for checking top and end of tape for data recording and reproducing apparatus 失效
标题翻译：用于检查数据记录和再现装置的磁带的顶端和末端的方法
公开(公告)号：US5617336A
公开(公告)日：1997-04-01
申请号：US330564
申请日：1994-10-28
申请人： Sang Y. Lee
发明人： Sang Y. Lee
IPC分类号： G11B15/08 , G11B15/093 , G11B27/17 , G11B27/34 , G11B15/00
CPC分类号： G11B15/08 , G11B15/093 , G11B27/17 , G11B27/34 , G11B2220/90
摘要： A method for checking top and end of tape for data recording and reproducing apparatus is disclosed. The method includes a first step for sensing a transparent tape section of a start portion of a tape wound about a tape take-up reel so as to sense the tape top. At a second step, a tape supply reel rotation period is detected and the detected supply reel rotation period is compared to a preset value. When the detected supply reel rotation period is not longer than the preset value, the tape end is checked at a predetermined period. However, when the detected supply reel rotation period is longer than the preset value, no tape end is checked. The method makes top-end checking time become optimal and saves power of the recording and reproducing apparatus, and reduces pulse noise generated in turning on or turning off the top-end checking LED.
摘要翻译：公开了一种用于检查用于数据记录和再现装置的磁带的顶端和末端的方法。该方法包括第一步骤，用于感测缠绕在卷取卷轴上的带的起始部分的透明带部分，以便感测带顶。在第二步骤中，检测到磁带供应卷轴旋转周期，并将检测到的供应卷轴旋转周期与预设值进行比较。当检测到的供带盘旋转周期不大于预设值时，在预定的周期检查带端。然而，当检测到的供带盘旋转周期大于预设值时，不检查磁带端。该方法使得顶端检查时间变得最佳，并且节省了记录和再现设备的功率，并且减少了打开或关闭顶端检查LED时产生的脉冲噪声。

9. 发明授权

US5612844A Prism for a data cartridge 失效
标题翻译：数据墨盒的棱镜
公开(公告)号：US5612844A
公开(公告)日：1997-03-18
申请号：US429427
申请日：1995-04-27
申请人： Jerry L. Alexander , David L. Tussey
发明人： Jerry L. Alexander , David L. Tussey
IPC分类号： G11B15/08 , G11B23/087 , G11B23/02
CPC分类号： G11B23/08778 , G11B15/08 , G11B23/08714
摘要： A prism is provided for deflecting light through the tape information holes in the tape of a data cartridge. The end faces of the prism are diffusing, non-reflective or angled to minimize spurious reflections through the prism.
摘要翻译：提供了棱镜，用于使光通过数据盒式磁带的磁带信息孔偏转。棱镜的端面扩散，非反射或成角度，以最小化通过棱镜的寄生反射。

10. 发明授权

US5566033A Method and apparatus for determining the location of information on a magnetic tape 失效
标题翻译：用于确定磁带上的信息位置的方法和装置
公开(公告)号：US5566033A
公开(公告)日：1996-10-15
申请号：US937384
申请日：1992-08-31
申请人： Gary E. Frame , David M. Schacter
发明人： Gary E. Frame , David M. Schacter
IPC分类号： G11B15/08 , G11B15/48 , G11B5/008 , G11B15/18
CPC分类号： G11B15/08
摘要： An improvement in a magnetic tape playback apparatus for determining the location of any portion of the magnetic tape as it passes the tape reading head including optically readable indicia means printed on the magnetic tape representing encoded information and means for optically reading the indicia including a light source and detector both mounted on one side of the tape. The improvement is compatible with existing magnetic tape playback devices and magnetic tape cassettes.
摘要翻译：用于确定磁带的任何部分的位置的磁带重放装置的改进，当它通过磁带读取头时，包括印在表示编码信息的磁带上的光学可读标记装置，以及用于光学读取包括光源的标记的装置和检测器都安装在磁带的一侧。该改进与现有的磁带回放设备和磁带盒兼容。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式