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    Synchronous read channel
    1.
    发明授权
    Synchronous read channel 失效
    同步读通道

    公开(公告)号：US07957370B2

    公开(公告)日：2011-06-07

    申请号：US12126188

    申请日：2008-05-23

    申请人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

    发明人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

    IPC分类号： H04L12/50

    CPC分类号： G11B20/10055 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/1258 ,  G11B20/1403 ,  G11B20/1426 ,  G11B20/18 ,  G11B27/3027 ,  G11B2020/1476 ,  H03M13/31

    摘要： A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL(1,7) encoding and decoding, error-tolerant synchronization and channel quality measurement is disclosed. The integrated circuit accommodates both center sampling and side sampling, and has a high degree of programmability of various pulse shaping and recovery parameters and the ability to provide decoded data using sequence detection or digital peak detection. These characteristics, together with the error-tolerant sync mark detection and the ability to recover data when the sync mark is obliterated, allow a wide variety of retry and recovery strategies to maximize the possibility of data recovery. Various embodiments, including an embodiment incorporating the analog functions as well as the primary digital functions of the read channel in a single integrated circuit, and preferred embodiments utilizing a reduced complexity, programmable modified Viterbi detector supporting a broad class of partial response channels are disclosed.

    摘要翻译： 公开了具有提供数字增益控制，定时恢复，均衡，数字峰值检测，序列检测，RLL（1,7）编码和解码，容错同步和信道质量测量的单芯片集成电路数字部分的同步读通道 。 集成电路既适用于中心采样和侧采样，又具有各种脉冲整形和恢复参数的高度可编程性，以及使用序列检测或数字峰值检测提供解码数据的能力。 这些特征以及容错同步标记检测以及当同步标记被消除时恢复数据的能力允许各种各样的重试和恢复策略以最大化数据恢复的可能性。 公开了包括在单个集成电路中并入模拟功能以及读取通道的主要数字功能的实施例的各种实施例，以及利用支持大类部分响应通道的降低复杂度的可编程修改维特比检测器的优选实施例。

    Systems and methods for automatically disabling a TCAS broadcast
    2.
    发明授权
    Systems and methods for automatically disabling a TCAS broadcast 有权
    自动禁用TCAS广播的系统和方法

    公开(公告)号：US07548183B2

    公开(公告)日：2009-06-16

    申请号：US11363701

    申请日：2006-02-28

    申请人： Larry D. King ,  Ruy C. Brandao ,  Amy K. Supple

    发明人： Larry D. King ,  Ruy C. Brandao ,  Amy K. Supple

    IPC分类号： G01S13/93

    CPC分类号： G01S13/9303 ,  G08G5/0008 ,  G08G5/0052

    摘要： Systems and methods for automatically disabling the TCAS Broadcast when aircraft join up in formation. A Traffic Collision Avoidance System (TCAS) determines if the aircraft is approaching formation flight with other aircraft or flying in formation with other aircraft and disables a TCAS interrogation signal if the aircraft is determined to be approaching a formation or flying in formation. The TCAS receives TCAS interrogation signals from one or more other aircraft and receives aircraft configuration information from one or more other aircraft systems. The TCAS determines the aircraft is approaching formation flight or flying in formation based on the received TCAS interrogation signals, a mode of TCAS operation, and/or the received aircraft configuration information. The TCAS also automatically switches into Traffic Advisory Only mode if the aircraft is determined to be approaching formation flight or flying in formation.

    摘要翻译： 飞机加入组合时自动禁用TCAS Broadcast的系统和方法。 交通碰撞避免系统（TCAS）确定飞机是否正在与其他飞机接近飞行，或与其他飞机飞行，如果飞机确定接近地层或飞行，则禁用TCAS询问信号。 TCAS从一个或多个其他飞机接收TCAS询问信号，并从一个或多个其他飞机系统接收飞机配置信息。 TCAS根据接收到的TCAS询问信号，TCAS操作模式和/或接收到的飞机配置信息，确定飞机正在接近地层飞行或飞行。 如果飞机确定正在接近飞行或飞行，则TCAS还会自动切换到仅限交通咨询模式。

    SYSTEMS AND METHODS FOR AUTOMATICALLY DISABLING A TCAS BROADCAST
    3.
    发明申请
    SYSTEMS AND METHODS FOR AUTOMATICALLY DISABLING A TCAS BROADCAST 有权
    自动停用TCAS广播的系统和方法

    公开(公告)号：US20090073024A1

    公开(公告)日：2009-03-19

    申请号：US11363701

    申请日：2006-02-28

    申请人： Larry D. King ,  Ruy C. Brandao ,  Amy K. Supple

    发明人： Larry D. King ,  Ruy C. Brandao ,  Amy K. Supple

    IPC分类号： G01S13/93

    CPC分类号： G01S13/9303 ,  G08G5/0008 ,  G08G5/0052

    摘要： Systems and methods for automatically disabling the TCAS Broadcast when aircraft join up in formation. A Traffic Collision Avoidance System (TCAS) determines if the aircraft is approaching formation flight with other aircraft or flying in formation with other aircraft and disables a TCAS interrogation signal if the aircraft is determined to be approaching a formation or flying in formation. The TCAS receives TCAS interrogation signals from one or more other aircraft and receives aircraft configuration information from one or more other aircraft systems. The TCAS determines the aircraft is approaching formation flight or flying in formation based on the received TCAS interrogation signals, a mode of TCAS operation, and/or the received aircraft configuration information. The TCAS also automatically switches into Traffic Advisory Only mode if the aircraft is determined to be approaching formation flight or flying in formation.

    摘要翻译： 飞机加入组合时自动禁用TCAS Broadcast的系统和方法。 交通碰撞避免系统（TCAS）确定飞机是否正在与其他飞机接近飞行，或与其他飞机飞行，如果飞机确定接近地层或飞行，则禁用TCAS询问信号。 TCAS从一个或多个其他飞机接收TCAS询问信号，并从一个或多个其他飞机系统接收飞机配置信息。 TCAS根据接收到的TCAS询问信号，TCAS操作模式和/或接收到的飞机配置信息，确定飞机正在接近地层飞行或飞行。 如果飞机确定正在接近飞行或飞行，则TCAS还会自动切换到仅限交通咨询模式。

    Integrated circuit servo system control for computer mass storage device with distributed control functionality to reduce transport delay
    4.
    发明授权
    Integrated circuit servo system control for computer mass storage device with distributed control functionality to reduce transport delay 失效
    用于具有分布式控制功能的计算机大容量存储设备的集成电路伺服系统控制，以减少传输

    公开(公告)号：US5586306A

    公开(公告)日：1996-12-17

    申请号：US448098

    申请日：1995-05-23

    申请人： Paul M. Romano ,  Larry D. King ,  John S. Geldman ,  Bhupendra K. Ahuja ,  Palaksha Setty ,  Petro Estakhri ,  Son Ho ,  Phuc Tran ,  Maryam Imam

    发明人： Paul M. Romano ,  Larry D. King ,  John S. Geldman ,  Bhupendra K. Ahuja ,  Palaksha Setty ,  Petro Estakhri ,  Son Ho ,  Phuc Tran ,  Maryam Imam

    IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B19/02 ,  G11B19/12 ,  G11B19/20 ,  G11B19/28 ,  G11B20/10 ,  G11B21/08 ,  G11B21/10 ,  G11B27/30 ,  G11B33/10 ,  G06F3/00

    CPC分类号： G11B27/3027 ,  G11B19/02 ,  G11B19/12 ,  G11B19/20 ,  G11B19/28 ,  G11B20/10 ,  G11B21/083 ,  G11B21/106 ,  G11B5/5526 ,  G11B5/59605 ,  G11B5/59655 ,  G11B33/10

    摘要： An integrated circuit controls the low level, electromechanical functionality of a computer mass storage device, such as a magnetic disk drive incorporating a spindle motor for rotatably controlling a disk and an actuator for positioning at least one read/write head with respect to the disk, to read or write encoded data configured in information data sectors and to sense encoded data of servo data sectors. A servo subsystem is coupled to an output of the read/write head for detecting the servo data sectors and providing a control signal in response thereto. An analog-to-digital subsystem is also coupled to an output of the read/write head and is operative in response to the servo subsystem control signal for converting the encoded data of the servo data sectors to digital transducer position information representative of a position of the read/write head with respect to the data tracks. A data processing subsystem is coupled to the analog-to-digital subsystem for processing the digital transducer position information and providing digital motion control signals in response thereto. A digital-to-analog subsystem is coupled to the data processing subsystem for providing analog control signals to the spindle motor and the actuator in response to the digital motion control signals.

    摘要翻译： 集成电路控制计算机大容量存储装置的低级机电功能，例如包括用于可旋转地控制盘的主轴电机的磁盘驱动器和用于相对于盘定位至少一个读/写头的致动器， 读取或写入配置在信息数据扇区中的编码数据，并读取伺服数据扇区的编码数据。 伺服子系统耦合到读/写头的输出端，用于检测伺服数据扇区并提供响应于此的控制信号。 模拟数字子系统还耦合到读/写头的输出端，并响应于伺服子系统控制信号操作，用于将伺服数据扇区的编码数据转换为数字换能器位置信息，该位置信息表示 相对于数据轨道的读/写头。 数据处理子系统耦合到模数 - 数字子系统，用于处理数字换能器位置信息并响应于此提供数字运动控制信号。 数字到模拟子系统耦合到数据处理子系统，用于响应于数字运动控制信号向主轴电动机和致动器提供模拟控制信号。

    Method for reducing transmit power for traffic alert and collision avoidance systems and airborne collision avoidance systems
    5.
    发明授权
    Method for reducing transmit power for traffic alert and collision avoidance systems and airborne collision avoidance systems 有权
    降低交通警报和防撞系统以及机载碰撞避免系统的发射功率的方法

    公开(公告)号：US06483453B2

    公开(公告)日：2002-11-19

    申请号：US09943039

    申请日：2001-08-29

    申请人： David Oey ,  Ruy C. Brandao ,  LuAn Vanness ,  Larry D. King

    发明人： David Oey ,  Ruy C. Brandao ,  LuAn Vanness ,  Larry D. King

    IPC分类号： G01S1300

    CPC分类号： G01S13/765 ,  G01S13/781 ,  G01S13/9303

    摘要： The present invention provides a method for efficient use of the transmit power of a Traffic Alert Collision Avoidance System (TCAS) that allows enhanced surveillance range and limits radio frequency (RF) interference in crowded airspace. The method reduces power density in crowded airspace by modifying Mode S, Mode A and Mode C interrogations. During Mode S broadcasts, tracking interrogation power is reduced as a function of range. Further transmit power reduction is achieved by broadcasting a variable power density whisper-shout interrogation technique for Mode A/C aircraft when garbling is detected. If garbling is observed during a medium whisper-shout interrogation sequence, the method of the present invention attempts to clear the garbling by using focused high-density whisper-shout steps but only in the ranges where garbling was detected. Formation members can account for other formation members that are TCAS equipped using a special E-TCAS Broadcast Interrogation. The presence of other E-TCAS will be used in the RF interference limiting calculations. Aircraft flying in formation further minimize broadcast power by sharing information between the formation leader and formation aircraft.

    摘要翻译： 本发明提供了一种有效利用交通警报冲突避免系统（TCAS）的发射功率的方法，其允许增强的监视范围并限制拥挤的空域中的射频（RF）干扰。 该方法通过修改模式S，模式A和模式C询问来降低拥挤空域的功率密度。 在模式S广播期间，跟踪询问功率作为范围的函数减小。 当检测到乱码时，通过广播用于模式A / C飞机的可变功率密度耳语询问技术来实现进一步的发射功率降低。 如果在中等耳语询问序列期间观察到乱码，则本发明的方法尝试通过使用聚焦的高密度耳语步骤来清除乱码，但是仅在检测到乱码的范围内。 组成员可以考虑使用特殊的E-TCAS广播讯问装备TCAS的其他组织成员。 其他E-TCAS的存在将用于RF干扰限制计算。 飞机飞行通过在地层导弹和地面飞机之间共享信息进一步最小化广播能力。

    Synchronous read channel
    8.
    发明授权
    Synchronous read channel 有权

    公开(公告)号：US07885255B2

    公开(公告)日：2011-02-08

    申请号：US12126188

    申请日：2008-05-23

    申请人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

    发明人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

    IPC分类号： H04L12/50

    摘要： A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL(1,7) encoding and decoding, error-tolerant synchronization and channel quality measurement is disclosed. The integrated circuit accommodates both center sampling and side sampling, and has a high degree of programmability of various pulse shaping and recovery parameters and the ability to provide decoded data using sequence detection or digital peak detection. These characteristics, together with the error-tolerant sync mark detection and the ability to recover data when the sync mark is obliterated, allow a wide variety of retry and recovery strategies to maximize the possibility of data recovery. Various embodiments, including an embodiment incorporating the analog functions as well as the primary digital functions of the read channel in a single integrated circuit, and preferred embodiments utilizing a reduced complexity, programmable modified Viterbi detector supporting a broad class of partial response channels are disclosed.

    Synchronous read channel
    9.
    发明授权
    Synchronous read channel 失效
    同步读通道

    公开(公告)号：US07379452B2

    公开(公告)日：2008-05-27

    申请号：US10028871

    申请日：2001-12-21

    申请人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

    发明人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

    IPC分类号： H04L12/50

    CPC分类号： G11B20/10055 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/1258 ,  G11B20/1403 ,  G11B20/1426 ,  G11B20/18 ,  G11B27/3027 ,  G11B2020/1476 ,  H03M13/31

    摘要： A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL(l,7) encoding and decoding, error-tolerant synchronization and channel quality measurement is disclosed. The integrated circuit accommodates both center sampling and side sampling, and has a high degree of programmability of various pulse shaping and recovery parameters and the ability to provide decoded data using sequence detection or digital peak detection. These characteristics, error-tolerant sync mark detection, and the ability to recover data when the sync mark is obliterated allow a wide variety of retry and recovery strategies to maximize the possibility of data recovery. Various embodiments, including an embodiment incorporating analog as well as digital functions of the read channel in a single integrated circuit, and embodiments utilizing a reduced complexity, programmable modified Viterbi detector supporting a broad class of partial response channels are disclosed.

    摘要翻译： 公开了具有提供数字增益控制，定时恢复，均衡，数字峰值检测，序列检测，RLL（1,7）编码和解码，容错同步和信道质量测量的单芯片集成电路数字部分的同步读通道 。 集成电路既适用于中心采样和侧采样，又具有各种脉冲整形和恢复参数的高度可编程性，以及使用序列检测或数字峰值检测提供解码数据的能力。 这些特性，容错同步标记检测以及当同步标记被消除时恢复数据的能力允许各种各样的重试和恢复策略来最大限度地提高数据恢复的可能性。 公开了包括在单个集成电路中并入模拟量以及读取通道的数字功能的实施例的各种实施例，以及利用支持大类部分响应通道的降低复杂性的可编程修改维特比检测器的实施例。

    Sequence, timing and synchronization technique for servo system controller of a computer disk mass storage device
    10.
    发明授权
    Sequence, timing and synchronization technique for servo system controller of a computer disk mass storage device 失效
    计算机磁盘大容量存储设备的伺服系统控制器的顺序，定时和同步技术

    公开(公告)号：US5477103A

    公开(公告)日：1995-12-19

    申请号：US72135

    申请日：1993-06-04

    申请人： Paul M. Romano ,  Larry D. King ,  Mike Machado ,  Petro Estakhri ,  Son Ho ,  Phuc Tran ,  Maryam Imam

    发明人： Paul M. Romano ,  Larry D. King ,  Mike Machado ,  Petro Estakhri ,  Son Ho ,  Phuc Tran ,  Maryam Imam

    IPC分类号： G11B19/12 ,  G11B19/28 ,  G05B19/29

    CPC分类号： G11B19/28 ,  G11B19/12

    摘要： A servo system controller for a disk drive device which includes a rotating mass storage disk incorporates a timing error determining circuit for determining rotational speed variations in the disk from information contained in a servo field recorded in a track. A timing error signal is supplied when the speed variation exceeds a threshold, thus indicating an unacceptable level of speed variation. A digital synchronizer responds to asynchronous servo data signals from the disk to establish a cell clock signal occurring about a normal frequency, a cell during which only one servo data signal will occur, and a cell data signal which occurs during the cell. The cell clock signal clocks logical operations on a synchronous basis, and servo data signals are reliably captured. A concurrence determining circuit determines the degree of concurrence between the predetermined series of cell data signals and an actual pattern of signals derived from the servo field, and recognizes the servo control information from less than complete concurrence of the derived pattern and the actual expected pattern. Normal operation is permitted even through slight inconsistences may be detected, improving data throughput while still achieving an adequate level of error tolerance.

    摘要翻译： 一种包括旋转大容量存储盘的磁盘驱动装置的伺服系统控制器包括一个定时误差确定电路，用于根据记录在磁道中的伺服磁场中包含的信息确定磁盘的转速变化。 当速度变化超过阈值时提供定时误差信号，从而指示不可接受的速度变化水平。 数字同步器响应于来自盘的异步伺服数据信号，以建立围绕正常频率发生的单元时钟信号，即仅将发生一个伺服数据信号的单元以及在单元期间发生的单元数据信号。 单元时钟信号在同步的基础上对逻辑运算进行时钟运算，并可靠地捕获伺服数据信号。 同步确定电路确定预定的一系列单元数据信号与从伺服磁场导出的实际信号模式之间的并发程度，并且从导出图案和实际期望图案的完全同意中识别伺服控制信息。 即使可以检测到轻微的不一致，允许正常操作，提高数据吞吐量，同时仍能达到足够的容错水平。