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公开(公告)号：US06480151B2
公开(公告)日：2002-11-12
申请号：US10035676
申请日：2001-12-28
IPC分类号： H04B7185
CPC分类号： H04L25/03044 , H04L1/06 , H04L2025/03509
摘要： Interference in a GPS receiver in minimized while preserving the GPS satellite signal in a system having N antenna elements for receiving the interference signal and the satellite signal and multiple tapped delay line structures connected to the antenna elements for filtering the signals received by the antenna elements based a plurality of filter coefficients. The filter coefficients are determined such that the plurality of filter coefficients equals R{tilde over (xx)}−1C[CHR{tilde over (xx)}−1C]−1F wherein CH{tilde over (w)}=F, where {tilde over (w)} equals the plurality of filter coefficients, R{tilde over (xx)} equals a covariance matrix, and C and F are determined to preserve a frequency spectrum of the GPS satellite signal.
摘要翻译： 在具有用于接收干扰信号的N个天线元件和卫星信号的系统中保持GPS卫星信号以及连接到天线元件的多个抽头延迟线结构以便对由天线元件接收的信号进行滤波的同时在GPS接收机中的干扰最小化 多个滤波器系数。 滤波器系数被确定为使得多个滤波器系数等于Rxx-1C [CHRxx-1C] -1F，其中CHw = F，其中w等于多个滤波器系数，Rxx等于协方差矩阵，并且C和F被确定为 保存GPS卫星信号的频谱。
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2.发明授权Apparatus, method, and computer program products for cell-hopping satellite communications 有权用于蜂窝卫星通信的装置，方法和计算机程序产品公开(公告)号：US06522643B1
公开(公告)日：2003-02-18
申请号：US09358385
申请日：1999-07-21
IPC分类号： H04Q700
CPC分类号： H04B7/18539 , H04W16/14 , H04W72/02 , H04W72/082 , H04W84/042 , H04W84/06
摘要： An apparatus, method, and computer program product for assigning communication resources in a beam-hopping cellular communication system. The satellite has a multiple beam antenna that covers a number of cells that is greater than the number of available beams In a preferred embodiment, the method includes the steps of selecting a frequency for each beam, computing a dwell time for each cell based on the traffic estimates for each cell and the number of available beams, and selecting a cell hopping sequence for each beam based on the dwell times and predicted inter-beam interference.
摘要翻译： 一种用于在跳频蜂窝通信系统中分配通信资源的装置，方法和计算机程序产品。 卫星具有覆盖多个可用波束数量的多个小区的多波束天线。在优选实施例中，该方法包括以下步骤：为每个波束选择频率，基于该波束计算每个小区的驻留时间 每个单元的流量估计和可用波束的数量，以及基于停留时间和预测的波束间干扰选择每个波束的小区跳跃序列。
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公开(公告)号：US5966692A
公开(公告)日：1999-10-12
申请号：US950464
申请日：1997-10-15
申请人： Alois A. Langer , Khalil J. Maalouf
发明人： Alois A. Langer , Khalil J. Maalouf
IPC分类号： A61B5/00 , A61B5/0402
CPC分类号： A61B5/0006 , G06F19/3418 , G06Q50/24 , A61B5/7232 , G06F19/322
摘要： A system for monitoring the heart of a patient. The system is comprised of a remote station having a device for generating an electrocardiogram of the patient, a device for detecting predetermined cardiological events in the patient in communication with the generating device and a transmitter for transmitting the electrocardiogram. The system also is comprised of a central station in continuous communication with the transmitter for receiving the transmitted electrocardiogram when a predetermined cardiological event occurs. There is also a database in communication with the central station for storing patient data and providing patient data to the central station. Additionally, there is a display device in communication with the central station and the database for displaying the patient data and the transmitted electrocardiogram. A method of monitoring the heart of a patient. The method includes the first step of taking an electrocardiogram of a patient at a remote station. Then, there is the step of automatically detecting predetermined cardiological events in the electrocardiogram. Next, there is the step of transmitting the electrocardiogram to a central station along with identification of the patient if a predetermined cardiological event occurs and immediately after it occurs. Then, there is the step of retrieving data about the patient from a database in communication with the central station. Next, there is the step of transmitting the patient's data to the central station.
摘要翻译： 用于监测患者心脏的系统。 该系统包括具有用于产生患者的心电图的装置的远程站，用于检测与生成装置通信的患者中的预定心脏事件的装置和用于发送心电图的发射器。 该系统还包括与发射机连续通信的中心站，用于在发生预定的心脏事件时接收所发射的心电图。 还有一个与中心站通信的数据库，用于存储患者数据并向中心站提供患者数据。 此外，存在与中心站和数据库通信的显示装置，用于显示患者数据和发送的心电图。 监测患者心脏的方法。 该方法包括在远程站采取患者的心电图的第一步骤。 然后，存在自动检测心电图中预先确定的心脏事件的步骤。 接下来，如果发生预定的心脏事件并且紧随其后发生，则将心电图发送到中心站以及患者的识别的步骤。 然后，从与中心站通信的数据库中检索关于患者的数据的步骤。 接下来，存在将患者数据发送到中心站的步骤。
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公开(公告)号：US5522396A
公开(公告)日：1996-06-04
申请号：US101199
申请日：1993-07-29
申请人： Alois A. Langer , Khalil J. Maalouf
发明人： Alois A. Langer , Khalil J. Maalouf
IPC分类号： A61B5/00 , A61B5/0402
CPC分类号： A61B5/0006 , A61B5/7232 , Y10S128/903 , Y10S128/904
摘要： The present invention pertains to a system for monitoring the health condition of a patient, such as the condition of the patient's heart. The system comprises a patient station having means for monitoring a predetermined bodily function of the patient and a patient transmitter for transmitting information relating to the bodily function. The system is also comprised of a secondary system remote from the patient at the patient station having means for activating the patient station such that information relating to the monitored bodily function can be transmitted from the patient station to the secondary station. The secondary station is in communication with the patient station. The present invention also pertains to a method of monitoring the health condition of a patient. The method comprises the steps of providing the patient with a device for monitoring a predetermined bodily function of the patient at a patient station. Then there is the step of activating the patient station from the secondary station remote from the patient at the patient station such that information relating to the predetermined bodily function of the patient can be transmitted to the secondary station.
摘要翻译： 本发明涉及用于监测患者的健康状况的系统，例如患者心脏的状况。 该系统包括具有用于监视患者的预定身体功能的装置的患者站和用于发送与身体功能相关的信息的患者发射器。 该系统还包括远离病人站的患者的辅助系统，其具有用于激活患者站的装置，使得可以将与所监视的身体功能相关的信息从患者站发送到次站。 次站与患者站通信。 本发明还涉及一种监测患者健康状况的方法。 该方法包括以下步骤：向患者提供用于在病人站监测患者的预定身体功能的装置。 然后，从患者站的远离患者的次站激活病人站，使与病人的预定身体功能有关的信息能够被发送到次站。
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公开(公告)号：US5014284A
公开(公告)日：1991-05-07
申请号：US373913
申请日：1989-06-30
申请人： Alois A. Langer , Khalil J. Maalouf
发明人： Alois A. Langer , Khalil J. Maalouf
摘要： A method and apparatus for processing electrical signals by modifying delta modulation to discrete slope delta modulation includes converting its electrical signals into compressed digital information, and representing this digital information as a sequence of slops or deltas added to the past value of the representation. For each sample period, a slope is chosen from slope tables having multiple entries and each choice is represented by a Huffman code. Signal compression occurs in two steps: first the selection of a small number of possible slopes provides compression and also the most probable slopes are represented by the shortest Huffman codes providing additional compression. Depending on the history of the slope chosen, multiple tables can be accessed with different slop entries. Two check point values are provided which code absolute output levels instead of slopes in order to facilitate recovery of the signal in the event of transmission errors. Initial matching of a specific slope value sought in the same table wherein the next preceding value was found. In one embodiment, at least four slope tables each having at least four values is employed. The apparatus has components for performing the method.
摘要翻译： 用于通过将增量调制修改为离散斜率增量调制来处理电信号的方法和装置包括将其电信号转换为压缩数字信息，并将该数字信息表示为添加到表示的过去值的斜率或增量的序列。 对于每个采样周期，从具有多个条目的斜率表中选择斜率，并且每个选择由霍夫曼代码表示。 信号压缩分为两个步骤：首先选择少量可能的斜率提供压缩，最可能的斜率由提供附加压缩的最短霍夫曼码表示。 根据所选斜率的历史，可以使用不同的斜率条目访问多个表。 提供了两个检查点值，其编码绝对输出电平而不是斜率，以便在传输错误的情况下促进信号的恢复。 在同一表中寻求的具有下一个前一值的特定斜率值的初始匹配。 在一个实施例中，采用至少四个具有至少四个值的斜率表。 该装置具有用于执行该方法的部件。
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