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1. 发明授权

US06940682B2 Data read transducers for determining lateral position of a tape head with respect to longitudinal servo bands of magnetic tape 失效
公开(公告)号：US06940682B2
公开(公告)日：2005-09-06
申请号：US10660436
申请日：2003-09-10
申请人： Nhan Xuan Bui , Robert Allen Hutchins , Glen Alan Jaquette , Larry Leeroy Tretter , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Robert Allen Hutchins , Glen Alan Jaquette , Larry Leeroy Tretter , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： In a magnetic tape system, during lateral repositioning of a tape head between servo bands, the servo head is not on a servo band and is unable to provide servo position information. Hence, information about the lateral position may be lost. A control system selectively senses data read transducers of the tape head; and, upon detecting a servo signal of a servo band from a sensed data read transducer, determines the lateral position of the tape head with respect to the detected servo band based upon the position of the data read transducer that sensed the detected servo signal.

2. 发明申请

US20120200952A1 Apparatus and Method to Transfer Data to and from a Sequential Information Storage Medium 审中-公开
标题翻译：将数据传送到和从顺序信息存储介质传输数据的装置和方法
公开(公告)号：US20120200952A1
公开(公告)日：2012-08-09
申请号：US13448352
申请日：2012-04-16
申请人： Nhan Xuan Bui , Reed Alan Hancock , Robert Allen Hutchins , Larry Leeroy Tretter
发明人： Nhan Xuan Bui , Reed Alan Hancock , Robert Allen Hutchins , Larry Leeroy Tretter
IPC分类号： G11B5/09 , G11B5/008
CPC分类号： G11B5/584
摘要： A sequential information storage medium, comprising a plurality of servo patterns encoded lengthwise thereon, wherein each servo pattern encodes at least one LPOS bit and comprises a width less than 187 microns.
摘要翻译：一种顺序信息存储介质，包括沿其纵向编码的多个伺服图案，其中每个伺服图案编码至少一个LPOS位并且包括小于187微米的宽度。

3. 发明授权

US08159770B2 Apparatus and method to transfer data to and from a sequential information storage medium 有权
标题翻译：将数据传送到和从顺序信息存储介质传送数据的装置和方法
公开(公告)号：US08159770B2
公开(公告)日：2012-04-17
申请号：US12353106
申请日：2009-01-13
申请人： Nhan Xuan Bui , Reed Alan Hancock , Robert Allen Hutchins , Larry Leeroy Tretter
发明人： Nhan Xuan Bui , Reed Alan Hancock , Robert Allen Hutchins , Larry Leeroy Tretter
IPC分类号： G11B15/12
CPC分类号： G11B5/584
摘要： A sequential information storage medium, comprising a plurality of servo patterns encoded lengthwise thereon, wherein each servo pattern encodes at least one LPOS bit and comprises a width less than 187 microns.
摘要翻译：一种顺序信息存储介质，包括沿其纵向编码的多个伺服图案，其中每个伺服图案编码至少一个LPOS位并且包括小于187微米的宽度。

4. 发明授权

US6101052A H configuration write driver circuit with integral component fault detection 失效
标题翻译： H配置写入驱动器电路与积分元件故障检测
公开(公告)号：US6101052A
公开(公告)日：2000-08-08
申请号：US075627
申请日：1993-06-14
申请人： Gary Francis Gooding , Larry Leeroy Tretter
发明人： Gary Francis Gooding , Larry Leeroy Tretter
IPC分类号： G11B5/00 , G11B5/008 , G11B15/02 , G11B33/10 , G11B33/12 , G11B33/14 , H03F3/30 , H03K17/082 , H03K17/687 , G11B5/09
CPC分类号： H03F3/3061 , H03K17/0822 , H03K17/6872 , G11B15/02 , G11B2005/001 , G11B33/10 , G11B33/122 , G11B33/14 , G11B5/00813
摘要： An H configuration write driver circuit is provided which includes integral fault detection circuitry. A load device, such as a magnetic tape recorder write head, is coupled in an H configuration with four drive transistors. A first and second drive transistor are coupled to opposite ends of the load device and produce current flow through the load device in a first direction. A third and fourth drive transistor are coupled to opposite ends of the load device to produce current flow through the load device in the opposite direction. A resistor is coupled in series between each drive transistor and the load device and these resistors serve to determine the time constant of the rise/fall of current through the inductive write head and to limit current flow through a drive transistor in the event of a short circuit condition therein. Voltage measurement nodes are provided in association with each resistor and the voltage at each node is compared to a predetermined reference voltage in order to produce multiple fault detection signals which may be utilized to accurately identify specific component fault conditions within the driver circuit.
摘要翻译：提供了一种H配置写入驱动器电路，其包括一体式故障检测电路。诸如磁带记录器写入头的负载装置以H配置与四个驱动晶体管耦合。第一和第二驱动晶体管耦合到负载装置的相对端并产生沿着第一方向穿过负载装置的电流。第三和第四驱动晶体管耦合到负载装置的相对端，以产生沿相反方向穿过负载装置的电流。电阻器串联连接在每个驱动晶体管和负载装置之间，这些电阻器用于确定通过电感写入头的电流的上升/下降的时间常数，并且在短时间内限制通过驱动晶体管的电流电路条件。与每个电阻器相关联地提供电压测量节点，并且将每个节点处的电压与预定参考电压进行比较，以便产生多个故障检测信号，其可用于准确地识别驱动器电路内的特定组件故障状况。

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