公开(公告)号：US5751238A

公开(公告)日：1998-05-12

申请号：US716701

申请日：1996-09-19

Applicant: David M. Lin

Inventor： David M. Lin

IPC: H01Q15/20

CPC classification number: H01Q15/20

Abstract: An apparatus and method for providing small size, high gain corner reflection of radio frequency signals for use in military and commercial applications. Conventional corner reflector practice is combined with electronic amplifying reflection devices such as the superregenerative amplifier to provide an array of antennas and amplifiers spread over each planar surface of a corner reflector. The specific antenna used may be selected from a plurality of various antenna types depending on the application. As in a conventional corner reflector, the amplified signal is reflected at the same angle and in the opposite direction of the incident signal.

Abstract translation: 一种提供用于军事和商业应用的射频信号的小尺寸，高增益角反射的装置和方法。 传统的角反射器实践与诸如超级再生放大器的电子放大反射装置组合以提供分布在角反射器的每个平面表面上的天线阵列和放大器。 所使用的特定天线可以根据应用从多种不同的天线类型中选择。 如在传统的角反射器中，放大的信号以与入射信号相反的方向被反射。

公开(公告)号：US08799345B1

公开(公告)日：2014-08-05

申请号：US12546134

申请日：2009-08-24

Applicant: Lihyeh Liou ,  David M. Lin ,  James B. Tsui

Inventor： Lihyeh Liou ,  David M. Lin ,  James B. Tsui

IPC: G06F7/32 ,  G06F17/16

CPC classification number: G06F17/16 ,  G01S3/74 ,  G06K9/00536 ,  G06K9/6247

Abstract: A new approach for applying the multiple signal classification (MUSIC) method for high spectral resolution signal detection is described. The new approach uses a lower order covariance matrix, or, alternately, an autocorrelation matrix, to calculate only the number of eigenvalues and associated eigenvectors actually needed to solve for the number of signals sought.

Abstract translation: 描述了应用用于高分辨率分辨率信号检测的多信号分类（MUSIC）方法的新方法。 新方法使用较低阶协方差矩阵，或者替代地，自相关矩阵来计算实际需要解决所寻求信号数量的特征值和相关特征向量的数量。

公开(公告)号：US07440989B1

公开(公告)日：2008-10-21

申请号：US10816353

申请日：2004-04-02

Applicant: James B. Y. Tsui ,  John M. Emmert ,  Stephen L. Hary ,  David M. Lin ,  Nicholas A. Pequignot ,  Keith M. Graves

Inventor： James B. Y. Tsui ,  John M. Emmert ,  Stephen L. Hary ,  David M. Lin ,  Nicholas A. Pequignot ,  Keith M. Graves

IPC: G06F15/00

CPC classification number: G06F17/142

Abstract: A Fourier transformation arrangement usable in an electronic warfare radio receiver for analyzing spectral content of multiple transmitter-sourced brief duration incoming signals for their signal characteristics. The disclosed Fourier transformation arrangement includes approximated Kernel function values disposed in a significant plurality of locations about a real-imaginary coordinate axis origin according to disclosed locating principles. The points are displaced from the origin by magnitudes having real and imaginary component lengths of powers of two commencing with zero. Multiplication involving a power of two component length during a Kernel function utilization are preferably achieved by way of an expanded binary shift multiplication algorithm in lieu of a full fledged digital multiplication algorithm. A group of guiding principles for selecting desirable approximation Kernel function locations is included.

Abstract translation: 一种用于电子战无线电接收机的傅里叶变换装置，用于分析其信号特性的多个发射机源短暂进入信号的频谱内容。 公开的傅里叶变换装置包括根据所公开的定位原理设置在围绕实虚坐标轴原点的有意义的多个位置中的近似的内核函数值。 这些点从原点移位，具有从0开始的实数和虚部的权力分量为2的幅度。 在内核功能利用期间涉及两个分量长度的幂的乘法优选地通过扩展的二进制移位乘法算法代替完整的数字乘法算法来实现。 包括一组用于选择所需近似内核函数位置的指导原则。

公开(公告)号：US5369408A

公开(公告)日：1994-11-29

申请号：US517639

申请日：1990-04-23

Applicant: James B. Y. Tsui ,  David M. Lin

Inventor： James B. Y. Tsui ,  David M. Lin

IPC: G01S7/38 ,  H04K3/00

CPC classification number: G01S7/38

Abstract: This invention is directed to an expendable which includes an electronic circuit for introducing a simulated Doppler frequency shift. When dropped from an aircraft, the expendable is used to confuse hostile radar operations. In the past, the approach has been to use a high frequency electronic switch (PIN diode) and drive oscillator to change the impedance of the expendable antenna. This invention involves a simplification which combines the electronic switch and its drive oscillator into a single semiconductor component. By connecting a feedback circuit from the collector to the base of a high frequency transistor as well as to the two arms of the antenna, the antenna impedance is changed at the transistor oscillating frequency.

Abstract translation: 本发明涉及一种消耗品，其包括用于引入模拟多普勒频移的电子电路。 当从飞机上掉落时，消耗品用于混淆敌对的雷达操作。 过去，采用高频电子开关（PIN二极管）和驱动振荡器来改变消耗天线的阻抗。 本发明涉及将电子开关及其驱动振荡器组合成单个半导体部件的简化。 通过将收集器的反馈电路连接到高频晶体管的基极以及天线的两个臂，天线阻抗以晶体管振荡频率改变。

公开(公告)号：USH2155H1

公开(公告)日：2006-05-02

申请号：US10057864

申请日：2002-01-28

Applicant: James B. Y. Tsui ,  David M. Lin

Inventor： James B. Y. Tsui ,  David M. Lin

IPC: H03D3/22

Abstract: An improved apparatus and method for determining the carrier frequency in a biphase coded signal such as the course acquisition code signal in a global position sensing system. The described system may also be used for other purposes. The described system is based on use of the conventional data signal squaring or frequency doubling step to remove biphase coding but performs a series of frequency reducing steps prior to applying the Fourier transformation sequence. The frequency reducing steps include heterodyne mixing and signal averaging. These frequency-reducing steps diminish the speed and capacity requirements imposed on the Fourier transformation sequence and thereby decrease the cost and complexity of the overall system.

公开(公告)号：US06410249B1

公开(公告)日：2002-06-25

申请号：US09619353

申请日：2000-07-19

Applicant: John Ngai ,  David J. Speca ,  David M. Lin ,  Ehud Y. Isacoff ,  Andrew H. Dittman ,  Jinhong Fan

Inventor： John Ngai ,  David J. Speca ,  David M. Lin ,  Ehud Y. Isacoff ,  Andrew H. Dittman ,  Jinhong Fan

IPC: G01N33566

CPC classification number: C07K14/705 ,  A61K38/00 ,  G01N2333/726

Abstract: The invention provides methods and compositions relating to odorant receptors, including a general expression cloning methodology which is useful for identifying novel G protein-coupled receptors and a novel family of odorant receptors and related nucleic acids, ligands, agonists and antagonists. These compositions provide a wide variety of applications such as screening for related receptors, and by modulating the function of the disclosed receptors by modulating their expression or contacting them with agonists, antagonist or ligands modulating reproductive/sexual and non-sexual social behaviors mediated via the olfactory system, reproductive physiologies and olfactory system regulated feeding behaviors, migratory behaviors and events such as conception, implantation, estrous and menstruation.

Abstract translation: 本发明提供了与加味剂受体相关的方法和组合物，包括一般表达克隆方法，其可用于鉴定新型G蛋白偶联受体和新颖的加味剂受体和相关核酸家族，配体，激动剂和拮抗剂。 这些组合物提供了各种各样的应用，例如筛选相关受体，并通过调节其所表达的受体的功能或通过调节其表达或与激动剂，拮抗剂或调节生殖/性和非性社交行为调节的配体 嗅觉系统，生殖生理和嗅觉系统调节饲养行为，迁移行为和受孕，植入，发情和月经等事件。

公开(公告)号：US06831596B1

公开(公告)日：2004-12-14

申请号：US10409707

申请日：2003-04-04

Applicant: James B. Y. Tsui ,  David M. Lin

Inventor： James B. Y. Tsui ,  David M. Lin

IPC: G01S514

CPC classification number: G01S19/235 ,  G01S19/07

Abstract: An arrangement for calibrating the sample frequency determining clock in a global position system receiver using signals received from a Wide Area Augmentation System satellite or other Wide Area Augmentation System signal source. Such Wide Area Augmentation System based clock calibration is free of the Doppler frequency effects impressed on a global position system signal in view of the geo-stationary orbit of a Wide Area Augmentation System satellite. Use of the calibration invention enables correction of the pseudo range determination accomplished with global position system receiver output data. The invention may be considered a new use of signals available from the Wide Area Augmentation System. A noise-considered arrangement for comparing Wide Area Augmentation System and global position system frequencies is included.

Abstract translation: 一种用于使用从广域增强系统卫星或其他广域增强系统信号源接收的信号来校准全球位置系统接收机中的采样频率确定时钟的装置。 鉴于宽广域增强系统卫星的地球静止轨道，这种基于广域增强系统的时钟校准不受施加于全球定位系统信号的多普勒频率影响。 使用校准发明使得能够校正由全局位置系统接收器输出数据完成的伪距离确定。 本发明可以被认为是可从广域增强系统获得的信号的新用途。 包括用于比较广域增强系统和全球定位系统频率的噪声考虑的布置。

公开(公告)号：US06720917B2

公开(公告)日：2004-04-13

申请号：US09729628

申请日：2000-12-04

Applicant: David M. Lin ,  James B. Y. Tsui

Inventor： David M. Lin ,  James B. Y. Tsui

IPC: H04B7185

CPC classification number: G01S19/29 ,  G01S19/32 ,  H04B1/70753 ,  H04B1/708 ,  H04L2027/0065

Abstract: An improved global positioning system satellite signal acquisition method. The method of the invention reduces the number of operations in the block correlation used in determining Doppler frequency and time of the received GPS C/A or P(Y) codes. Reducing the number of operations in block correlation increases acquisition speed making it conducive to commercial and military GPS receivers

Abstract translation: 改进的全球定位系统卫星信号采集方法。 本发明的方法减少了用于确定接收的GPS C / A或P（Y）码的多普勒频率和时间的块相关中的操作次数。 降低块相关操作次数提高了采集速度，有利于商用和军用GPS接收机