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49 条记录 (耗时 0.023 秒)

    Positioning using a position sensor and a calibrated offset between the position sensor and a reference position
    1.
    发明授权
    Positioning using a position sensor and a calibrated offset between the position sensor and a reference position 失效
    使用位置传感器和位置传感器与参考位置之间的校准偏移进行定位

    公开(公告)号：US06188537B1

    公开(公告)日：2001-02-13

    申请号：US08603696

    申请日：1996-02-20

    申请人： Michael P. Eland ,  Kevin L. Miller

    发明人： Michael P. Eland ,  Kevin L. Miller

    IPC分类号： G11B2102

    CPC分类号： G01D18/00 ,  G11B5/5504 ,  G11B7/085 ,  G11B21/027

    摘要： A transducer position sensing system, in a electromechanical drive, for determining transducer position. A sensor is mounted with a non-adjustable position and without absolute position accuracy, thereby lowering manufacturing costs. The position of the transducer at which the sensor switches states is accurately determined in a manufacturing test fixture and recorded in a permanent memory used by a drive controller. The drive controller can then accurately determine transducer position during subsequent initialization procedures.

    摘要翻译： 用于确定换能器位置的机电驱动器中的换能器位置感测系统。 传感器安装有不可调节位置，绝对位置精度不变，从而降低制造成本。 传感器切换状态的传感器的位置在制造测试夹具中被精确地确定并记录在由驱动控制器使用的永久存储器中。 然后，驱动控制器可以在随后的初始化过程中准确地确定换能器位置。

    Nonlinear mapping in digital-to-analog and analog-to-digital converters
    3.
    发明授权
    Nonlinear mapping in digital-to-analog and analog-to-digital converters 有权
    数模转换器和模数转换器的非线性映射

    公开(公告)号：US08018363B2

    公开(公告)日：2011-09-13

    申请号：US12557352

    申请日：2009-09-10

    申请人： Todd L. Brooks ,  Kevin L. Miller ,  Josephus A. Van Engelen

    发明人： Todd L. Brooks ,  Kevin L. Miller ,  Josephus A. Van Engelen

    IPC分类号： H03M3/00

    CPC分类号： H03M7/3013

    摘要： In a high-fidelity digital modulator, a mapper is provided to minimize quantization noise, jitter, and cross-talk between multiple digital-to-analog or analog-to-digital converters. The mapper receives a quantized level from a quantizer and maps the quantized level to an output sequence. The mapper includes a table defining multiple sequences corresponding to each quantized level. Each sequence includes two or more symbols, having one of multiple values. The mapper also includes a generator that selects one of the multiple sequences as the output sequence. The last symbol of a first output sequence is equal to the first symbol of the next output sequence and so on. The generator selects the output sequence by alternating between a first and a second sequence for each quantized level received. The generator selects the output sequence by alternating between sequences having a positive and a negative common mode energy for each odd valued quantized level received.

    摘要翻译： 在高保真数字调制器中，提供映射器以最小化多个数模转换器或模数转换器之间的量化噪声，抖动和串扰。 映射器从量化器接收量化电平，并将量化电平映射到输出序列。 映射器包括定义对应于每个量化级别的多个序列的表。 每个序列包括具有多个值之一的两个或多个符号。 映射器还包括选择多个序列之一作为输出序列的发生器。 第一个输出序列的最后一个符号等于下一个输出序列的第一个符号，依此类推。 发生器通过在接收到的每个量化级别的第一和第二序列之间交替来选择输出序列。 发生器通过在接收到的每个奇数值量化电平具有正和负共模能量的序列之间交替来选择输出序列。

    System and method for providing power over a home phone line network
    5.
    发明授权
    System and method for providing power over a home phone line network 有权

    公开(公告)号：US07046796B2

    公开(公告)日：2006-05-16

    申请号：US11034182

    申请日：2005-01-13

    申请人： Theodore F. Rabenko ,  Charles G. Wier ,  Steven L. Caine ,  John H. Gleiter ,  Kevin L. Miller

    发明人： Theodore F. Rabenko ,  Charles G. Wier ,  Steven L. Caine ,  John H. Gleiter ,  Kevin L. Miller

    IPC分类号： H04M19/08

    CPC分类号： H04M19/08

    摘要： A system and method is provided for supplying power over a home phone line network in a manner that is interoperable with other voice and data services operating on the same network. The system includes a power source coupled to the home phone line network. The power source includes an AC signal generator that generates an AC signal at a selected frequency. The power source also includes a band pass filter for removing unwanted harmonics from the AC signal, thereby generating a filtered AC signal for powering one or more devices on the home phone line network. One or more devices attached to the home phone line network, such as a telephone adapter or telephone, receives the filtered AC signal. Each device comprises a second band pass filter and an AC/DC converter. The second band pass filter passes the filtered AC signal to the AC/DC converter and prevents the introduction of undesired harmonics onto the home phone line network from the AC/DC converter. The AC/DC converter converts the filtered AC signal to a DC signal used for powering the device.

    Adaptive expansion bus
    6.
    发明授权
    Adaptive expansion bus 失效
    自适应扩展总线

    公开(公告)号：US5740386A

    公开(公告)日：1998-04-14

    申请号：US449501

    申请日：1995-05-24

    申请人： Kevin L. Miller ,  Victor K. Pecone

    发明人： Kevin L. Miller ,  Victor K. Pecone

    IPC分类号： G06F13/40 ,  G06F13/00

    CPC分类号： G06F13/4022

    摘要： A bus system is disclosed which includes first and second buses are coupled via an bus switch. The bus switch may be selectively turned on and off thus allowing the bus system to be electronically configured in a plurality of different configurations.

    摘要翻译： 公开了一种总线系统，其包括通过总线开关耦合的第一和第二总线。 可以选择性地打开和关闭总线开关，从而允许总线系统以多种不同的配置电子地配置。

    Tape head fine positioning system for a tape backup drive
    7.
    发明授权
    Tape head fine positioning system for a tape backup drive 失效
    磁带头精细定位系统，用于磁带备份驱动器

    公开(公告)号：US5331490A

    公开(公告)日：1994-07-19

    申请号：US606887

    申请日：1990-10-31

    申请人： Alan J. Richards ,  William A. Godette ,  Helmuth O. Kroog ,  Kevin L. Miller

    发明人： Alan J. Richards ,  William A. Godette ,  Helmuth O. Kroog ,  Kevin L. Miller

    IPC分类号： G11B15/675 ,  G11B25/06 ,  G11B33/02 ,  G11B5/58

    CPC分类号： G11B33/02 ,  G11B15/67521 ,  G11B25/063

    摘要： The present invention provides a back-up tape drive having a precision molded chassis with a fine positioning system for a tape head. This system includes a follower nut threadingly mounted on a lead screw that is bi-directionally rotated by a stepper motor. A lever arm engages the follower nut in a manner such that torsional moments between the forces of the follower nut and lever arm are minimized. The other end of the lever arm engages a tape head mounting unit. The lever arm pivotally engages the chassis at a predetermined midpoint of the lever arm such that a mechanical advantage is derived. The positioning system is designed so the forces acting on the tape head mounting unit are aligned to minimize the torsional forces acting on the tape head mounting unit. The tape head mounting unit further includes reference features that reduce the need for azimuth and zenith adjustment.

    摘要翻译： 本发明提供了一种具有精密模制底盘的备用磁带驱动器，其具有用于磁带头的精细定位系统。 该系统包括螺纹安装在由步进电机双向旋转的导螺杆上的从动螺母。 杠杆臂以使得从动螺母和杠杆臂的力之间的扭转力矩最小化的方式与从动螺母接合。 杠杆臂的另一端与磁带头安装单元接合。 杠杆臂在杠杆臂的预定中点处枢转地接合底盘，从而得到机械优点。 定位系统被设计成使作用在磁带头安装单元上的力被对准，以使作用在带头安装单元上的扭转力最小化。 磁带头安装单元还包括减少对方位角和天顶调整的需要的参考特征。

    SYSTEM AND METHOD OF UNCORRELATED CODE HOPPING IN A COMMUNICATIONS SYSTEM
    10.
    发明申请
    SYSTEM AND METHOD OF UNCORRELATED CODE HOPPING IN A COMMUNICATIONS SYSTEM 有权
    通信系统中非常规代码的系统和方法

    公开(公告)号：US20100180165A1

    公开(公告)日：2010-07-15

    申请号：US12708756

    申请日：2010-02-19

    申请人： Bruce J. CURRIVAN ,  Thomas J. Kolze ,  Kevin L. Miller ,  Richard S. Prodan ,  Jonathan S. Min

    发明人： Bruce J. CURRIVAN ,  Thomas J. Kolze ,  Kevin L. Miller ,  Richard S. Prodan ,  Jonathan S. Min

    IPC分类号： G06F11/00

    CPC分类号： H04B1/69 ,  H04J13/0074

    摘要： A system and method are used to provide uncorrelated code hopping in a communications system. A shift register receives data. The shift register is clocked to shift the data. A scaler performs a scaling operation on the data with a numerical value of active codes. A truncator truncates the scaled data to its seven most significant bits to produce a pseudo random hop number. A code matrix shifter circularly shifts the active codes in a code matrix based on the pseudo random hop number to produce a circularly shifted code. A transmitter transmits the circularly shifted code.

    摘要翻译： 系统和方法用于在通信系统中提供不相关的跳码。 移位寄存器接收数据。 移位寄存器用于移位数据。 缩放器使用活动代码的数值对数据执行缩放操作。 截断器将缩放的数据截断为其七个最高有效位以产生伪随机跳数。 码矩阵移位器基于伪随机跳数循环移位代码矩阵中的活动代码，以产生循环移位代码。 发射机发送循环码。