公开(公告)号：US5530927A

公开(公告)日：1996-06-25

申请号：US272916

申请日：1994-07-01

Applicant: Andrew D. Smith

Inventor： Andrew D. Smith

IPC: H03D7/18 ,  H03D9/06 ,  H04B1/26 ,  H04B1/10

CPC classification number: H04B1/26 ,  H03D9/06 ,  H03D2200/0023 ,  H03D2200/0082 ,  H03D7/18

Abstract: A feed network parallel superconductive tunnel junction circuit that acts as a doubly balanced mixer and can be utilized as a millimeter wave satellite communications link. A quadrature-fed mixer circuit relies on a network of 90 degree couplers to feed signal and local oscillator power to four identical SIS detectors where SIS is a superconductor-insulator-superconductor layer construction. Power applied to either port is split equally to each detector, and the relative phase relationship of the signal and the LO is preserved. By selecting the appropriate polarity of the dc junction bias, the detected IF output of the SIS detectors adds coherently.

Abstract translation: 作为双平衡混频器的馈电网并联超导隧道结电路，可用作毫米波卫星通信链路。 正交馈电混频器电路依靠90度耦合器的网络将信号和本地振荡器功率馈送到四个相同的SIS检测器，其中SIS是超导体 - 绝缘体 - 超导体层结构。 施加到任一端口的功率均等地分配给每个检测器，并且保持信号和LO的相对相位关系。 通过选择直流结偏置的适当极性，检测到的SIS检测器的IF输出相加。

公开(公告)号：US5493719A

公开(公告)日：1996-02-20

申请号：US269711

申请日：1994-07-01

Applicant: Andrew D. Smith ,  Arnold H. Silver

Inventor： Andrew D. Smith ,  Arnold H. Silver

IPC: H01Q1/36 ,  H01Q23/00 ,  H03D7/18 ,  H03D9/06 ,  H04B1/26 ,  H04B1/28

CPC classification number: H01Q1/364 ,  H01Q23/00 ,  H03D9/06 ,  H04B1/26 ,  H03D2200/0023 ,  H03D2200/0082 ,  H03D7/18

Abstract: A high frequency receiver detects and downconverts 50-1,000 GHz radio frequency signals using a receiver consisting of a lens and planar antenna, pre-amplifier, mixer, local oscillator, and IF-amplifier. The insulating dielectric lens is used to focus terahertz radio frequency signals onto the thin film antenna. The preamplifier amplifies these faint signals so that they can be downconverted into an intermediate frequency by the mixer and local oscillator. The mixer is a dual port device which provides isolation of the local oscillator and input signal to avoid saturation of the preamplifier. The IF amplifier boosts the amplitude of the downconverted IF signal produced by the mixer.

Abstract translation: 高频接收机使用由透镜和平面天线，前置放大器，混频器，本地振荡器和IF放大器组成的接收器来检测和下变频50-1,000 GHz的射频信号。 绝缘介电透镜用于将太赫兹射频信号聚焦到薄膜天线上。 前置放大器放大这些微弱的信号，使得它们可以通过混频器和本地振荡器下变频成中频。 混频器是双端口设备，提供本地振荡器和输入信号的隔离，以避免前置放大器的饱和。 IF放大器提升由混频器产生的下变频IF信号的幅度。

公开(公告)号：US5088981A

公开(公告)日：1992-02-18

申请号：US80405

申请日：1987-07-31

Applicant: David C. Howson ,  Andrew D. Smith ,  Richard A. Simonelli

Inventor： David C. Howson ,  Andrew D. Smith ,  Richard A. Simonelli

IPC: A61M5/168 ,  A61M5/172

CPC classification number: A61M5/172 ,  G06F19/3468 ,  A61M5/16827 ,  Y10S128/13

Abstract: Safety enhanced device and method are disclosed for effecting application of a therapeutic agent. A removable and operationally non-volatile programmable element is used to control operation of a therapeutic agent delivery unit. A computer, operationally independent of the delivery unit, is utilized to establish coded information for programming of the programmable element while removed from the delivery unit. Operation of the delivery unit according to the program then established for the programmable element is simulated at the computer prior to actual programming of the programmable element to insure the integrity of subsequent delivery of the therapeutic agent to a patient by the delivery unit. The programmable element effects independent delivery of therapeutic agents in each of a plurality of channels under the control of the programmable element. The programmable element is programmed to establish a flow profile that is customized for a particular patient during each minute of each day, and patient demand for therapeutic agents can also be accommodated with safeguards being included to assure proper dispensing.

Abstract translation: 公开了用于实施治疗剂的安全性增强的装置和方法。 可移动和可操作地非易失性可编程元件用于控制治疗剂递送单元的操作。 用于操作地独立于传送单元的计算机用于建立用于编程可编程元件的编码信息，同时从传送单元移除。 在可编程元件的实际编程之前，在计算机上模拟根据随后针对可编程元件建立的程序的传送单元的操作，以确保治疗剂随后由传送单元递送给患者的完整性。 可编程元件在可编程元件的控制下在多个通道中的每一个中实现治疗剂的独立递送。 可编程元件被编程为建立在每天的每一分钟期间为特定患者定制的流量分布，并且还可以容纳患者对治疗剂的需求，其中包括保证以确保适当的分配。

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。

公开(公告)号：USD553792S1

公开(公告)日：2007-10-23

申请号：US29269627

申请日：2006-12-05

Applicant: Andrew D. Smith

Designer： Andrew D. Smith

公开(公告)号：USD551387S1

公开(公告)日：2007-09-18

申请号：US29269626

申请日：2006-12-05

Applicant: Andrew D. Smith

Designer： Andrew D. Smith

公开(公告)号：USD529227S1

公开(公告)日：2006-09-26

申请号：US29244232

申请日：2005-12-07

Applicant: Andrew D. Smith

Designer： Andrew D. Smith

公开(公告)号：USD515732S1

公开(公告)日：2006-02-21

申请号：US29222902

申请日：2005-02-04

Applicant: Andrew D. Smith

Designer： Andrew D. Smith

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）。

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）。