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    Materials handling vehicle
    1.
    发明授权
    Materials handling vehicle 有权
    物料运输车辆

    公开(公告)号：US07870919B2

    公开(公告)日：2011-01-18

    申请号：US11928227

    申请日：2007-10-30

    Applicant: Lucas B. Waltz ,  William C. Jones, Jr. ,  Andrew D. Smith

    Inventor： Lucas B. Waltz ,  William C. Jones, Jr. ,  Andrew D. Smith

    IPC: B62D23/00

    CPC classification number: B66F17/003 ,  B60K1/04 ,  B60Y2200/15 ,  B66F9/07545 ,  B66F9/07572 ,  B66F9/07595

    Abstract: A materials handling vehicle is provided comprising a frame including a longitudinal centerline and an operator compartment; first and second front wheels coupled to the frame; a rear steer wheel assembly coupled to the frame; mast apparatus coupled to the frame and including a pair of forks; and a battery associated with the frame and having a center of gravity. The battery is preferably positioned such that the battery center of gravity is laterally offset from the longitudinal center line. A stability triangle for the vehicle is defined by a first point at the first front wheel, a second point at the second front wheel and a third point at the rear steer wheel assembly. Preferably, the stability triangle defines a scalene triangle.

    Abstract translation: 提供了一种材料处理车辆，其包括：框架，其包括纵向中心线和操作室; 第一和第二前轮联接到框架; 耦合到框架的后转向轮组件; 桅杆装置联接到框架并且包括一对叉子; 以及与该框架相关并具有重心的电池。 优选地，电池被定位成使得电池重心横向偏离纵向中心线。 用于车辆的稳定性三角形由第一前轮处的第一点，第二前轮处的第二点和后转向轮组件的第三点限定。 优选地，稳定性三角形定义了斜角三角形。

    Wireless telecommunications multi-carrier receiver architecture
    6.
    发明授权
    Wireless telecommunications multi-carrier receiver architecture 有权
    无线电信多载波接收机架构

    公开(公告)号：US06813320B1

    公开(公告)日：2004-11-02

    申请号：US09605078

    申请日：2000-06-28

    Applicant: Shimen K. Claxton ,  Bert K. Oyama ,  Eric L. Upton ,  Barry R. Allen ,  Mark Kintis ,  Andrew D. Smith ,  Craig R. Talbott ,  David J. Brunone ,  Donald R. Martin ,  William M. Skones ,  Ronald P. Smith ,  Vincent C. Moretti

    Inventor： Shimen K. Claxton ,  Bert K. Oyama ,  Eric L. Upton ,  Barry R. Allen ,  Mark Kintis ,  Andrew D. Smith ,  Craig R. Talbott ,  David J. Brunone ,  Donald R. Martin ,  William M. Skones ,  Ronald P. Smith ,  Vincent C. Moretti

    IPC: H03K900

    CPC classification number: H04B1/28 ,  H03D7/163

    Abstract: A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.

    Abstract translation: 一种用于无线电信系统的接收机（10），其提供接收信号的相对宽带信号处理，而不增加信号失真，使得可以同时处理多个接收信号。 接收器（10）包括专用LNA（16），降频转换器（18）和ADC（20），以在维持接收机性能的同时执行宽带信号处理。 降频转换器（18）采用合适的混频器（28），BPA（32），衰减器（34）和变压器（36），其被调谐以在期望的宽带上提供期望的频率下变频和幅度控制。 根据ADC的特定性能标准（20）选择下转换器器件。 在接收器（10）中包括一个专门的数字信道化器（22），其接收来自ADC（20）的数字信号，并将信号分离成多个信道。 在一个实施例中，在单个下变频处理中执行降频转换，并且ADC（20）采用delta-sigma处理来在整个频带上提供数字转换。 在替代实施例中，在双下变频过程中执行降频转换，使得可以使用较不复杂的ADC（62）。

    Receiver including low noise amplifier and frequency down-converter for a wireless telecommunication system
    7.
    发明授权
    Receiver including low noise amplifier and frequency down-converter for a wireless telecommunication system 有权
    接收机包括无线电信系统的低噪声放大器和频率下变频器

    公开(公告)号：US06735421B1

    公开(公告)日：2004-05-11

    申请号：US09605209

    申请日：2000-06-28

    Applicant: Shimen K. Claxton ,  Barry R. Allen ,  Mark Kintis ,  Andrew D. Smith ,  Craig R. Talbott ,  David J. Brunone ,  Donald R. Martin ,  William M. Skones ,  Vincent C. Moretti

    Inventor： Shimen K. Claxton ,  Barry R. Allen ,  Mark Kintis ,  Andrew D. Smith ,  Craig R. Talbott ,  David J. Brunone ,  Donald R. Martin ,  William M. Skones ,  Vincent C. Moretti

    IPC: H04B168

    CPC classification number: H04B1/0007 ,  H04B1/0003 ,  H04B1/28

    Abstract: A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.

    Abstract translation: 一种用于无线电信系统的接收机（10），其提供接收信号的相对宽带信号处理，而不增加信号失真，使得可以同时处理多个接收信号。 接收器（10）包括专用LNA（16），降频转换器（18）和ADC（20），以在维持接收机性能的同时执行宽带信号处理。 降频转换器（18）采用合适的混频器（28），BPA（32），衰减器（34）和变压器（36），其被调谐以在期望的宽带上提供期望的频率下变频和幅度控制。 根据ADC的特定性能标准（20）选择下转换器器件。 在接收器（10）中包括一个专门的数字信道化器（22），其接收来自ADC（20）的数字信号，并将信号分离成多个信道。 在一个实施例中，在单个下变频处理中执行降频转换，并且ADC（20）采用delta-sigma处理来在整个频带上提供数字转换。 在替代实施例中，在双下变频过程中执行降频转换，使得可以使用较不复杂的ADC（62）。

    Gated counter analog-to-digital converter with error correction
    9.
    发明授权
    Gated counter analog-to-digital converter with error correction 失效
    具有纠错功能的门控模数转换器

    公开(公告)号：US06452520B1

    公开(公告)日：2002-09-17

    申请号：US09725620

    申请日：2000-11-29

    Applicant: Andrew D. Smith ,  Quentin P. Herr ,  Mark W. Johnson ,  Bruce J. Dalrymple

    Inventor： Andrew D. Smith ,  Quentin P. Herr ,  Mark W. Johnson ,  Bruce J. Dalrymple

    IPC: H03M100

    CPC classification number: H03M1/0602 ,  H03M1/60

    Abstract: A superconducting A/D converter (10) has an error correction system (70) for eliminating non-linearities in a primary quantizer (30). The converter (10) includes a primary quantizer (30), a primary SFQ counter (50), and the error correction system (70). The primary quantizer (30) generates primary SFQ pulses based on an average voltage of an analog input signal. The primary SFQ counter (50) converts the primary SFQ pulses into a digital output signal based on a frequency of the primary SFQ pulses. The error correction system (70) corrects the digital output signal based on the analog input signal and the primary SFQ pulses. Using the primary SFQ pulses to correct the digital output signal allows the converter (10) to take into account the non-linearities of the primary quantizer (30).

    Abstract translation: 超导A / D转换器（10）具有用于消除主量化器（30）中的非线性的误差校正系统（70）。 转换器（10）包括主量化器（30），主SFQ计数器（50）和纠错系统（70）。 主量化器（30）基于模拟输入信号的平均电压产生初始SFQ脉冲。 主SFQ计数器（50）基于主SFQ脉冲的频率将初级SFQ脉冲转换成数字输出信号。 误差校正系统（70）根据模拟输入信号和初级SFQ脉冲校正数字输出信号。 使用主SFQ脉冲来校正数字输出信号允许转换器（10）考虑主量化器（30）的非线性。

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