公开(公告)号：US06359937B1

公开(公告)日：2002-03-19

申请号：US09517980

申请日：2000-03-03

Applicant: Eric David Leonard ,  David James Thomson

Inventor： Eric David Leonard ,  David James Thomson

IPC: H04L2720

CPC classification number: H04B1/3805 ,  H04L27/0008

Abstract: A method and apparatus are provided for use in a transceiver of a wireless system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. The apparatus comprises a processor that performs FM modulation to generate I, Q pairs when operating in the analog mode. When transmitting in the analog mode, the processor encodes a digital representation of the signal to be transmitted into I, Q pairs and outputs the I, Q pairs to a digital-to-analog converter (DAC) comprised by the apparatus. The DAC converts the digital I, Q pairs into analog signals and outputs the analog signals to a cosine wave generator, which generates an in-phase cosine wave and an out-of-phase cosine wave having amplitudes that are proportional to the I and Q values, respectively. The cosine waves are summed for transmission over air. When receiving in the analog mode, a digital down converter converts the received signal into digital I and Q values. The processor then demodulates the I and Q values into a digital representation of the received signal to extract the signal content. When transitioning from transmitting data to transmitting audio, and vice versa, the processor ensures that abrupt changes in the phases of the I, Q pairs do not occur.

Abstract translation: 提供了一种在无线系统的收发器中使用的方法和装置，其使得能够使用同相（I）和正交（Q）值来执行模拟模式操作。 该装置包括在模拟模式下操作时执行FM调制以产生I，Q对的处理器。 当在模拟模式下发送时，处理器将要发送到I，Q对的信号的数字表示编码，并将I，Q对输出到由该装置包括的数模转换器（DAC）。 DAC将数字I，Q对转换为模拟信号，并将模拟信号输出到余弦波发生器，其产生同相余弦波和具有与I和Q成比例的幅度的异相余弦波 值。 将余弦波相加通过空气传播。 当以模拟模式接收时，数字下变频器将接收到的信号转换成数字I和Q值。 然后，处理器将I值和Q值解调为接收信号的数字表示，以提取信号内容。 当从发送数据转换到发送音频，反之亦然时，处理器确保不发生I，Q对的相位的突然变化。

公开(公告)号：US06687314B1

公开(公告)日：2004-02-03

申请号：US09517997

申请日：2000-03-03

Applicant: Eric David Leonard ,  Suresh Subramanian ,  David James Thomson

Inventor： Eric David Leonard ,  Suresh Subramanian ,  David James Thomson

IPC: H04L2716

CPC classification number: H04L25/067 ,  H04L7/027 ,  H04L7/046 ,  H04L27/14

Abstract: A method and apparatus are provided for use in a transceiver of a wireless system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. When operating in the analog mode, the apparatus comprises a processor that receives digital I, Q pairs relating to audio or data signals and performs FM demodulation to generate information content relating to the audio or data signals. When receiving data in the analog mode, the data is in a particular format.

Abstract translation: 提供了一种在无线系统的收发器中使用的方法和装置，其使得能够使用同相（I）和正交（Q）值来执行模拟模式操作。 当在模拟模式下操作时，该装置包括处理器，其接收与音频或数据信号相关的数字I，Q对，并执行FM解调以产生与音频或数据信号相关的信息内容。 当以模拟模式接收数据时，数据是特定的格式。

公开(公告)号：US6009208A

公开(公告)日：1999-12-28

申请号：US517481

申请日：1995-08-21

Applicant: Partha Pratim Mitra ,  David James Thomson

Inventor： Partha Pratim Mitra ,  David James Thomson

IPC: A61B5/055 ,  G06K9/40 ,  G06T1/00 ,  G06T5/00 ,  G06T7/00 ,  H04N1/38

CPC classification number: G06K9/40 ,  G06T5/002 ,  G06T5/10 ,  G06T2207/10088 ,  G06T2207/30004

Abstract: A methodology is disclosed for processing image data to extract image information of interest from aggregate image information containing other interfering information. Application of the methodology also leads to significant compression in the data, which reduces storage requirements. With the methodology of the invention, an augmented linear decomposition of the image data is performed. Thereafter, components of the image data corresponding to a baseline image, image information introduced by non-regular extraneous factors, and image information related to random noise are removed from the data by suppression of appropriate terms of the linear decomposition. The image data so reduced may contain both image information of interest and image data related to regularly occurring extraneous factors. The image data of interest is removed from such reduced aggregate image data by frequency domain filtering of the reduced aggregate data.

Abstract translation: 公开了一种用于处理图像数据以从包含其他干扰信息的聚合图像信息中提取感兴趣的图像信息的方法。 该方法的应用也导致数据的显着压缩，这减少了存储要求。 利用本发明的方法，执行图像数据的增强的线性分解。 此后，通过抑制线性分解的适当项从数据中去除对应于基线图像的图像数据的分量，由非规则的外来因素引入的图像信息和与随机噪声相关的图像信息。 如此减少的图像数据可以包含感兴趣的图像信息和与定期发生的外来因素相关的图像数据。 感兴趣的图像数据通过对缩小的聚合数据进行频域滤波从该缩减的聚合图像数据中去除。

公开(公告)号：US5745384A

公开(公告)日：1998-04-28

申请号：US508274

申请日：1995-07-27

Applicant: Louis J. Lanzerotti ,  Carol G. Maclennan ,  Lester V. Medford ,  David James Thomson

Inventor： Louis J. Lanzerotti ,  Carol G. Maclennan ,  Lester V. Medford ,  David James Thomson

IPC: G01D21/00 ,  G01D3/032 ,  G01V1/00 ,  G01V3/08 ,  H03F1/26

CPC classification number: G01V1/008 ,  G01D3/032 ,  Y10S706/929 ,  Y10S706/93

Abstract: A system and method are disclosed for detecting an event-related signal among noise, where the system includes memory for storing measurement values and may include a processor for generating residual values associated with the measurement values, and for detecting the event-related signal using the residual values.

Abstract translation: 公开了一种用于检测噪声中的事件相关信号的系统和方法，其中系统包括用于存储测量值的存储器，并且可以包括用于产生与测量值相关联的残余值的处理器，并且用于使用 剩余值。

公开(公告)号：US06654485B1

公开(公告)日：2003-11-25

申请号：US09470454

申请日：1999-12-22

Applicant: Partha Pratim Mitra ,  David James Thomson

Inventor： Partha Pratim Mitra ,  David James Thomson

IPC: G06K900

CPC classification number: G06K9/40 ,  G06T5/002 ,  G06T5/10 ,  G06T2207/10088 ,  G06T2207/30004

Abstract: A methodology is disclosed for processing image data to extract image information of interest from aggregate image information containing other interfering information. Application of the methodology also leads to significant compression in the data, which reduces storage requirements. With the methodology of the invention, an augmented linear decomposition of the image data is performed. Thereafter, components of the image data corresponding to a baseline image, image information introduced by non-regular extraneous factors, and image information related to random noise are removed from the data by suppression of appropriate terms of the linear decomposition. The image data so reduced may contain both image information of interest and image data related to regularly occurring extraneous factors. The image data of interest is removed from such reduced aggregate image data by frequency domain filtering of the reduced aggregate data.

Abstract translation: 公开了一种用于处理图像数据以从包含其他干扰信息的聚合图像信息中提取感兴趣的图像信息的方法。 该方法的应用也导致数据的显着压缩，这减少了存储要求。 利用本发明的方法，执行图像数据的增强的线性分解。 此后，通过抑制线性分解的适当项从数据中去除对应于基线图像的图像数据的分量，由非规则的外来因素引入的图像信息和与随机噪声相关的图像信息。 如此减少的图像数据可以包含感兴趣的图像信息和与定期发生的外来因素相关的图像数据。 感兴趣的图像数据通过对缩小的聚合数据进行频域滤波从该缩减的聚合图像数据中去除。

公开(公告)号：US06351729B1

公开(公告)日：2002-02-26

申请号：US09352417

申请日：1999-07-12

Applicant: David James Thomson

Inventor： David James Thomson

IPC: G10L1104

CPC classification number: G10L25/48 ,  G10L25/18

Abstract: There is disclosed a method for processing a time-varying signal to produce a high-resolution spectrogram that represents power as a function of both frequency and time. Data blocks of a time series, which represents of a sampled signal, are subjected to processing which results in a sequence of frequency-dependent functions referred to as eigencoefficients. Each eigencoefficient represents signal information projected onto a local frequency domain using a respective one of K Slepian sequences or Slepian functions. The spectrogram is derived from time- and frequency-dependent expansions formed from the eigencoefficients.

Abstract translation: 公开了一种用于处理时变信号以产生表示作为频率和时间的函数的功率的高分辨率光谱图的方法。 表示采样信号的时间序列的数据块被进行处理，这导致被称为特征系数的频率相关函数的序列。 每个特征系数表示使用K Slepian序列或Slepian函数中的相应一个投影到本地频域上的信号信息。 光谱图来自于从特征系数形成的时间和频率依赖的扩展。

公开(公告)号：US06317098B1

公开(公告)日：2001-11-13

申请号：US09477972

申请日：2000-01-05

Applicant: Michael R Andrews ,  Partha Pratim Mitra ,  David James Thomson

Inventor： Michael R Andrews ,  Partha Pratim Mitra ,  David James Thomson

IPC: H01Q2126

CPC classification number: H01Q21/26 ,  H01Q21/24 ,  H01Q21/28 ,  H04B7/10

Abstract: Problems of fading in a multi-path environment are ameliorated, and the presence of reflective surfaces is turned from a disadvantage to an advantage, by employing a third polarization direction that effectively creates a third communication channel. This third communication channel can be used to send more information, or to send information with enhanced spatial diversity to thereby improve the overall communication performance. A transmitted signal with three polarization directions is created with a transmitter having, illustratively, three dipole antennas that are spatially orthogonal to each other. A received signal having energy content in three polarization directions is detected by a receiver having, illustratively, three dipole antennas that are spatially orthogonal to each other.

Abstract translation: 通过采用有效地创建第三通信信道的第三偏振方向，改善了多径环境中的衰落问题，并且反射表面的存在从缺点转变为优点。 该第三通信信道可以用于发送更多信息，或者发送具有增强的空间分集的信息，从而提高整体通信性能。 具有三个偏振方向的发送信号通过具有例如彼此在空间上正交的三个偶极子天线的发射机产生。 具有三个偏振方向的能量含量的接收信号由具有例如在空间上彼此正交的三个偶极子天线的接收机检测。