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公开(公告)号：US6018784A
公开(公告)日：2000-01-25
申请号：US184728
申请日：1998-11-02
申请人： David R. Gildea , Mark L. Nagel
发明人： David R. Gildea , Mark L. Nagel
CPC分类号： G01S19/37
摘要： A peripheral component interconnect (PCI) global positioning system (GPS) card for receiving a GPS signal. In a first embodiment the PCI card includes a GPS downconverter. In a second embodiment the PCI card including the GPS downconverter is integrated into a personal computer for correlating a GPS signal and computing a GPS location. In a third embodiment the PCI card includes a GPS downconverter and a GPS correlator. In a fourth embodiment the PCI card including the GPS downconverter and the GPS correlator is integrated into a personal computer for computing a GPS location.
摘要翻译： 用于接收GPS信号的外围部件互连（PCI）全球定位系统（GPS）卡。 在第一实施例中，PCI卡包括GPS下变频器。 在第二实施例中，包括GPS下变频器的PCI卡被集成到个人计算机中，用于关联GPS信号和计算GPS位置。 在第三实施例中，PCI卡包括GPS下变频器和GPS相关器。 在第四实施例中，包括GPS下变频器和GPS相关器的PCI卡被集成到用于计算GPS位置的个人计算机中。
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公开(公告)号：US07940834B2
公开(公告)日：2011-05-10
申请号：US12152614
申请日：2008-05-15
CPC分类号： H04B1/7075 , G01S19/24 , G01S19/30 , H04B2201/70715
摘要： A GNSS receiver and method using alternating “A” and “B” time segments for a reception time length of two or more data bits. The GNSS signal in an “A” time period comprising the “A” time segments is integrated for determining “A” magnitudes corresponding to code phase increments and the GNSS signal in a “B” time period comprising the “B” time segments is integrated for determining “B” magnitudes corresponding to code phase increments. A trial-and-error data bit search is performed for depolarizing data bit senses. The code phase increment showing the largest correlation level is used for acquisition of the GNSS signal and/or determination of the location where the GNSS is being received.
摘要翻译： GNSS接收机和方法，对于两个或多个数据比特的接收时间长度，使用交替的“A”和“B”时间段。 集成了包括“A”时间段的“A”时间段中的GNSS信号用于确定与码相位增量相对应的“A”幅度，并且在包括“B”时间段的“B”时间段中的GNSS信号被积分 用于确定与码相位增量相对应的“B”幅度。 执行试错数据位搜索以对数据位感测进行去极化。 显示最大相关电平的码相位增量用于获取GNSS信号和/或确定接收GNSS的位置。
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公开(公告)号：US6092193A
公开(公告)日：2000-07-18
申请号：US865271
申请日：1997-05-29
CPC分类号： H04L9/3236 , H04L2209/20 , H04L2209/84
摘要： Methods and apparati for representing and storing a sequence of digital data values so that, once stored in memory, a data value cannot be modified, or cannot be modified without detection. Detection of subsequent data alteration may use error checksums, storage of instrument data in different data fields, data constraint relations, data encryption techniques and/or comparison of instrument identification numbers. Where data are to be stored in non-alterable form, the number of elements used in representing the sequence is reduced or minimized. A data value sequence can be supplemented by one or more additional data values that are received and similarly stored, without changing any of the sequence of data values already stored. The instrument data values can be individual readout values or can be accumulated sums of data values. Some of the methods are exact, allowing reconstruction of any data value with zero error. Other methods are approximate but are less complex to apply. These methods can be applied to numerical readout values from instruments such as odometers and electropotential meters at a selected sequence of sampling times.
摘要翻译： 用于表示和存储数字数据值序列的方法和装置，使得一旦存储在存储器中，数据值不能被修改，或者不能在没有检测的情况下被修改。 后续数据变更的检测可能会使用错误校验和，在不同数据字段中存储仪器数据，数据约束关系，数据加密技术和/或仪器识别号码的比较。 数据以不可变形式存储的情况下，减少或最小化用于表示序列的元素数量。 数据值序列可以由接收和类似地存储的一个或多个附加数据值来补充，而不改变已经存储的任何数据值序列。 仪器数据值可以是单独的读出值，也可以是数据值的累计和。 一些方法是精确的，允许以零错误重建任何数据值。 其他方法是近似值，但不太复杂。 这些方法可以应用于来自仪器的数字读出值，例如里程表和电位计在选定的采样时间序列。
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公开(公告)号：US5832247A
公开(公告)日：1998-11-03
申请号：US903965
申请日：1997-07-31
申请人： David R. Gildea , Mark L. Nagel
发明人： David R. Gildea , Mark L. Nagel
CPC分类号： G01S19/37
摘要： A peripheral component interconnect (PCI) global positioning system (GPS) card for receiving a GPS signal. In a first embodiment the PCI card includes a GPS downconverter. In a second embodiment the PCI card including the GPS downconverter is integrated into a personal computer for correlating a GPS signal and computing a GPS location. In a third embodiment the PCI card includes a GPS downconverter and a GPS correlator. In a fourth embodiment the PCI card including the GPS downconverter and the GPS correlator is integrated into a personal computer for computing a GPS location.
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公开(公告)号：US5589835A
公开(公告)日：1996-12-31
申请号：US359604
申请日：1994-12-20
申请人： David R. Gildea , Lloyd H. Banta
发明人： David R. Gildea , Lloyd H. Banta
CPC分类号： G01S19/07
摘要： A GPS receiver system to determine and display a geographical differential Global Positioning System (DGPS) location where the components of the system are interconnected with an airwave infrared (IR) link. The system includes a GPS Smart Antenna receiver module to determine the geographical location of the module, a DGPS radio receiver to receive an airwave radio frequency DGPS signal having DGPS correction information, and a personal computing display to run an application program and to display the geographical DGPS location and application information that is useful to a user. The GPS Smart Antenna receiver module and the DGPS radio receiver are switched on and off from the personal computing display through the airwave IR link.
摘要翻译： GPS接收机系统，用于确定和显示地理差异全球定位系统（DGPS）位置，其中系统的组件与空气波红外（IR）链路相互连接。 该系统包括GPS智能天线接收器模块，用于确定模块的地理位置，DGPS无线电接收器，用于接收具有DGPS校正信息的空气波射频DGPS信号，以及用于运行应用程序并显示地理位置的个人计算显示 DGPS位置和对用户有用的应用程序信息。 GPS智能天线接收器模块和DGPS无线电接收器通过空气波IR链路从个人计算显示器接通和关闭。
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公开(公告)号：US20120113671A1
公开(公告)日：2012-05-10
申请号：US13206443
申请日：2011-08-09
申请人： SRIDHAR SADASIVAN , John R. Linton , David R. Gildea , Seth Coe-Sullivan , Suchit Shah , Robert J. Nick
发明人： SRIDHAR SADASIVAN , John R. Linton , David R. Gildea , Seth Coe-Sullivan , Suchit Shah , Robert J. Nick
CPC分类号： H01J1/63 , C09D11/101 , C09D11/52
摘要： Systems and methods are described that relate to quantum dot (QD) structures for lighting applications. In particular, quantum dots and quantum dot containing inks (comprising mixtures of different wavelength quantum dots) are synthesized for desired optical properties and integrated with an LED source to create a trichromatic white light source. The LED source may be integrated with the quantum dots in a variety of ways, including through the use of a small capillary filled with quantum dot containing ink or a quantum dot containing film placed appropriately within the optical system. These systems may result in improved displays characterized by higher color gamuts, lower power consumption, and reduced cost.
摘要翻译： 描述了与照明应用的量子点（QD）结构相关的系统和方法。 特别地，合成量子点和含量子点的油墨（包括不同波长的量子点的混合物）以获得所需的光学特性并与LED源集成以产生三色白光源。 LED源可以以各种方式与量子点集成，包括通过使用填充有量子点的含有墨水的小毛细管或适当地放置在光学系统内的含量子点的膜。 这些系统可以导致改进的显示器，其特征在于色域更高，功耗更低，成本更低。
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公开(公告)号：US20090285268A1
公开(公告)日：2009-11-19
申请号：US12152614
申请日：2008-05-15
IPC分类号： H04B1/707
CPC分类号： H04B1/7075 , G01S19/24 , G01S19/30 , H04B2201/70715
摘要： A GNSS receiver and method using alternating “A” and “B” time segments for a reception time length of two or more data bits. The GNSS signal in an “A” time period comprising the “A” time segments is integrated for determining “A” magnitudes corresponding to code phase increments and the GNSS signal in a “B” time period comprising the “B” time segments is integrated for determining “B” magnitudes corresponding to code phase increments. A trial-and-error data bit search is performed for depolarizing data bit senses. The code phase increment showing the largest correlation level is used for acquisition of the GNSS signal and/or determination of the location where the GNSS is being received.
摘要翻译： GNSS接收机和方法，对于两个或多个数据比特的接收时间长度，使用交替的“A”和“B”时间段。 集成了包括“A”时间段的“A”时间段中的GNSS信号用于确定与码相位增量相对应的“A”幅度，并且在包括“B”时间段的“B”时间段中的GNSS信号被积分 用于确定与码相位增量相对应的“B”幅度。 执行试错数据位搜索以对数据位感测进行去极化。 显示最大相关电平的码相位增量用于获取GNSS信号和/或确定接收GNSS的位置。
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8.发明授权
公开(公告)号：US6016120A
公开(公告)日：2000-01-18
申请号：US215185
申请日：1998-12-17
申请人： Lea Ann McNabb , David R. Gildea
发明人： Lea Ann McNabb , David R. Gildea
CPC分类号： H01Q3/08 , H01Q1/1257 , H01Q1/3275
摘要： An antenna aiming method and apparatus for automatically pointing an antenna to a selected distant location. The antenna aiming apparatus includes a database for storing data for distant locations, an electronic compass for determining a reference azimuth for the local antenna, and a global positioning system (GPS) receiver for determining a local location. A processor computes a pointing direction having an azimuth and an elevation from the local location to the distant location and then computes a horizontal rotation angle between the pointing direction and the reference azimuth and a vertical rotation angle from horizontal to the elevation. An antenna rotator servo-mechanism under processor control rotates the local antenna by the horizontal and vertical rotation angles for pointing the local antenna to the distant location. Optionally, the apparatus further includes electronic roll and pitch inclinometers for providing information to the processor for correcting the horizontal and vertical rotation angles for pitch and roll of the platform.
摘要翻译： 一种用于将天线自动指向所选择的远距离位置的天线瞄准方法和装置。 天线瞄准装置包括用于存储用于远距离位置的数据的数据库，用于确定本地天线的参考方位角的电子罗盘，以及用于确定本地位置的全球定位系统（GPS）接收器。 处理器计算具有从本地位置到远处位置的方位角和高程的指向方向，然后计算指向方向和参考方位角之间的水平旋转角度以及从水平向高程的垂直旋转角度。 在处理器控制下的天线旋转器伺服机构将本地天线旋转水平和垂直旋转角度，以将本地天线指向远处。 可选地，该装置还包括用于向处理器提供信息以校正平台的倾斜和滚动的水平和垂直旋转角度的电子辊和俯仰倾斜计。
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公开(公告)号：US5173715A
公开(公告)日：1992-12-22
申请号：US714192
申请日：1991-06-12
CPC分类号： H01Q21/26 , H01Q21/205
摘要： An antenna comprises a base plate forming a ground plane, a coaxial feed serving as a mast connected to the base plate and extending along an axis that is normal to the ground plane, and two orthogonal dipoles each formed of two elements. Each dipole element has a first end connected to and supported by the mast at a first location spaced apart from the ground plane by a predetermined distance and a second end closer to the ground plane and exhibits a curvature in a plane containing the mast.
摘要翻译： 天线包括形成接地平面的基板，用作连接到基板并沿着垂直于接地平面的轴延伸的桅杆的同轴馈电，以及由两个元件形成的两个正交偶极子。 每个偶极元件具有在与接地平面隔开预定距离的第一位置处连接并由桅杆支撑的第一端，并且靠近接地平面的第二端并且在包含桅杆的平面中呈现曲率。
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公开(公告)号：US4717894A
公开(公告)日：1988-01-05
申请号：US922383
申请日：1986-10-23
申请人： Allen P. Edwards , David R. Gildea , Chung Y. Lau
发明人： Allen P. Edwards , David R. Gildea , Chung Y. Lau
CPC分类号： H04L27/364 , G01R35/005 , H04L2027/0016 , H04L2027/0018
摘要： Calibration of a vector modulator is done using a scalar detector to measure the amplitude of the RF output signal, phase shifters to adjust the relative phases of the I and Q components of the RF carrier, and variable attenuators in the I and Q modulation signal input lines to adjust the relative amplitude of the modulation signals. DC signal sources provide reference signals for the I and Q modulation inputs, carrier leak compensation signals, and calibration signals for balancing the amplitude of the I and Q modulation signals. An iterative four step calibration process is followed until no change in the results is observed. The quadrature phase error is minimized by adjusting the phase shifters. The carrier leakage is minimized by adjusting the carrier leak compensation sources to minimize RF output with the modulation inputs grounded. The amplitudes of the I and Q modulation signals are balanced by adjusting the attenuators until the output amplitudes are equal. Finally, the quadrature calibration signal sources are adjusted until the output amplitudes they produce are balanced.
摘要翻译： 使用标量检测器来校准矢量调制器，以测量RF输出信号的幅度，移相器调整RF载波的I和Q分量的相对相位，以及I和Q调制信号输入中的可变衰减器 线调整调制信号的相对幅度。 直流信号源为I和Q调制输入提供参考信号，载波泄漏补偿信号和用于平衡I和Q调制信号振幅的校准信号。 遵循迭代的四步校准过程，直到没有观察到结果的变化。 通过调整移相器来使正交相位误差最小化。 通过调整载波泄漏补偿源，使调制输入接地的RF输出最小化，使载波泄漏最小化。 I和Q调制信号的幅度通过调节衰减器直到输出幅度相等来平衡。 最后，校正正交校准信号源，直到它们产生的输出振幅平衡。
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