公开(公告)号：US20160154116A1

公开(公告)日：2016-06-02

申请号：US13815861

申请日：2013-03-15

Applicant: Farrokh Farrokhi ,  Edmund Gregory Lee ,  Dickson Wong

Inventor： Farrokh Farrokhi ,  Edmund Gregory Lee ,  Dickson Wong

IPC: G01S19/48 ,  G01S19/11 ,  G01S19/24

CPC classification number: G01S19/246

Abstract: A satellite-based positioning receiver is provided that is configured to combine non-concurrent sets of pseudoranges all taken at a common location to determine at least a 2D position of the common location.

Abstract translation: 提供了一种基于卫星的定位接收器，其被配置为组合在公共位置处获取的非并发的伪距集合，以确定公共位置的至少2D位置。

公开(公告)号：US20110080321A1

公开(公告)日：2011-04-07

申请号：US12587100

申请日：2009-10-02

Applicant: Farrokh Farrokhi ,  Dickson T. Wong ,  Arthur J. Collmeyer

Inventor： Farrokh Farrokhi ,  Dickson T. Wong ,  Arthur J. Collmeyer

IPC: G01S19/24

CPC classification number: G01S19/22 ,  G01S19/28 ,  G01S19/36

Abstract: The use of multiple GPS sensors provides the conceptual framework for novel techniques for reducing the minimum signal strength required by a GPS assistance system to acquire and accurately track GPS satellites at or near the horizon. A strong signal attenuation system for synthesizing GPS satellite-specific I/F signals, enabling more efficient and effective acquisition of GPS satellites, is disclosed, comprising N+1 reference GPS sensors, each with an omni-directional antenna and front end, for down converting composite GPS satellite signals, and strong signal suppression (SSS) means for synthesizing, from the I/F signals produced by the N+1 reference GPS sensors, a set of one or more I/F signals (corresponding to a set of designated satellites), each with at least N of the strongest potentially-interfering satellite signals suppressed.

Abstract translation: 使用多个GPS传感器提供了用于降低GPS辅助系统所需的最小信号强度以获取并准确地跟踪在地平线附近或附近的GPS卫星的新技术的概念框架。 公开了一种用于合成GPS卫星专用I / F信号的强信号衰减系统，使得能够更有效和有效地获取GPS卫星，其包括N + 1个参考GPS传感器，每个具有全向天线和前端，用于向下 转换复合GPS卫星信号和强信号抑制（SSS）装置，用于根据由N + 1参考GPS传感器产生的I / F信号合成一组一个或多个I / F信号（对应于一组指定的 卫星），其中每个具有至少N个最强的潜在干扰卫星信号被抑制。

公开(公告)号：US20100283673A1

公开(公告)日：2010-11-11

申请号：US12587096

申请日：2009-10-02

Applicant: Farrokh Farrokhi ,  Dickson T. Wong ,  Arthur J. Collmeyer

Inventor： Farrokh Farrokhi ,  Dickson T. Wong ,  Arthur J. Collmeyer

IPC: G01S19/42 ,  G01S19/09

CPC classification number: G01S19/22

Abstract: A system for measuring the pseudo range from a target GPS sensor to a designated navigational satellite, for use in a satellite positioning system (SPS) is comprised of multiple GPS sensors for receiving and recording portions of the signals transmitted by designated navigational satellites, the recordings referred to as datagrams; and means for transmitting the datagrams to a datagram processing facility wherein the pseudo range from the target GPS sensor to the designated navigational satellite is derived. The datagram processing facility for deriving the pseudo range is further comprised of a pseudo range engine for deriving a pseudo range from a datagram originating with said target GPS sensor, the location of which is to be determined, the derivation accomplished with the aid of a perfect reference; a perfect reference engine for generating a perfect reference from one or more satellite-specific datagrams: and a strong signal suppression engine for synthesizing satellite-specific datagrams from I/F signals recorded by reference GPS sensors designated for the express purpose of perfect reference generation. The perfect reference reduces the minimum signal strength required to acquire and accurately track GPS satellites at or near the horizon.

Abstract translation: 用于测量从目标GPS传感器到用于卫星定位系统（SPS）的指定导航卫星的伪距离的系统由用于接收和记录由指定导航卫星发送的信号的部分的多个GPS传感器组成，记录 简称数据报; 以及用于将数据报发送到数据报处理设施的装置，其中从目标GPS传感器到指定的导航卫星的伪距离被导出。 用于导出伪距离的数据报处理设备还包括伪距引擎，用于从源于所述目标GPS传感器的数据报导出伪距离，该距离引擎的位置将被确定，借助于完美的 参考; 用于从一个或多个卫星专用数据报产生完美参考的完美参考引擎：以及强大的信号抑制引擎，用于根据为完美参考生成的明确目的而被指定的参考GPS传感器记录的I / F信号合成卫星专用数据报。 完美的参考降低了获取并准确跟踪地平线或附近的GPS卫星所需的最小信号强度。

公开(公告)号：US20100020907A1

公开(公告)日：2010-01-28

申请号：US12299470

申请日：2007-05-04

Applicant: Behrooz Rezvani ,  Farrokh Farrokhi ,  Andrea Goldsmith

Inventor： Behrooz Rezvani ,  Farrokh Farrokhi ,  Andrea Goldsmith

IPC: H04B7/10 ,  H04B1/06

CPC classification number: H04L25/03057 ,  H04B7/0848 ,  H04B7/086 ,  H04L2025/03426

Abstract: A technique for processing received signals in multiple-antenna systems. Received signals from the different antennas may be amplified by a Low Noise Amplifier (LNA) and time-multiplexed by a switch to form a single analog signal. The time-multiplexed analog signal is down-converted and processed using a single RF chain for each signal component. This may result in an N-fold decrease in hardware in multiple antenna receiver systems.

Abstract translation: 一种在多天线系统中处理接收信号的技术。 来自不同天线的接收信号可以由低噪声放大器（LNA）放大，并由开关进行时分复用以形成单个模拟信号。 时分多路复用的模拟信号用于每个信号分量的单个RF链进行下变频和处理。 这可能导致多个天线接收机系统中的硬件减少N倍。

公开(公告)号：US20080101502A1

公开(公告)日：2008-05-01

申请号：US11860529

申请日：2007-09-24

Applicant: Seyed M. Navidpour ,  Farrokh Farrokhi ,  Andrea Goldsmith

Inventor： Seyed M. Navidpour ,  Farrokh Farrokhi ,  Andrea Goldsmith

IPC: H04K1/02

CPC classification number: H04L27/2623 ,  H04L1/0041 ,  H04L1/06

Abstract: A technique for PAR reduction involves producing an optimized clipping pulse. The optimized clipping pulse may be designed to meet certain requirements, such as a spectral mask target or an EVM target, when applied to a signal.

Abstract translation: 用于PAR减少的技术涉及产生优化的限幅脉冲。 当施加到信号时，优化的限幅脉冲可被设计为满足某些要求，例如光谱掩模目标或EVM目标。

公开(公告)号：US08446998B2

公开(公告)日：2013-05-21

申请号：US12299470

申请日：2007-05-04

Applicant: Behrooz Rezvani ,  Farrokh Farrokhi ,  Andrea Goldsmith

Inventor： Behrooz Rezvani ,  Farrokh Farrokhi ,  Andrea Goldsmith

IPC: H04B7/10 ,  H04L1/02

CPC classification number: H04L25/03057 ,  H04B7/0848 ,  H04B7/086 ,  H04L2025/03426

Abstract: A technique for processing received signals in multiple-antenna systems. Received signals from the different antennas may be amplified by a Low Noise Amplifier (LNA) and time-multiplexed by a switch to form a single analog signal. The time-multiplexed analog signal is down-converted and processed using a single RF chain for each signal component. This may result in an N-fold decrease in hardware in multiple antenna receiver systems.

Abstract translation: 一种在多天线系统中处理接收信号的技术。 来自不同天线的接收信号可以由低噪声放大器（LNA）放大，并由开关进行时分复用以形成单个模拟信号。 时分多路复用的模拟信号用于每个信号分量的单个RF链进行下变频和处理。 这可能导致多个天线接收机系统中的硬件减少N倍。

公开(公告)号：US08378886B2

公开(公告)日：2013-02-19

申请号：US12387888

申请日：2009-05-09

Applicant: Farrokh Farrokhi ,  Dickson Wong ,  Arthur J. Collmeyer

Inventor： Farrokh Farrokhi ,  Dickson Wong ,  Arthur J. Collmeyer

IPC: G01S19/42 ,  G01S19/35

CPC classification number: G01S19/22

Abstract: A system for measuring the pseudo range from a first GPS sensor to a designated navigational satellite, for use in a satellite positioning system (SPS) is comprised of first and second GPS sensors for receiving and recording first and second portions of the signal transmitted by the designated navigational satellite, the recordings referred to as the first and second datagrams. The first and second datagrams are transmitted to a datagram processing facility wherein the pseudo range from the first GPS sensor to the designated navigational satellite is extracted. The datagram processing facility for extracting the pseudo range is further comprised of a pseudo range engine for extracting a pseudo range from a datagram received by the first GPS sensor. The location of which is to be determined, the extraction accomplished with the aid of a perfect reference; and a perfect reference engine for generating a perfect reference from a datagram originating with a second GPS sensor designated for the express purpose of perfect reference generation.

Abstract translation: 用于测量从卫星定位系统（SPS）中使用的第一GPS传感器到指定导航卫星的伪距离的系统包括用于接收和记录由卫星定位系统（SPS）发射的信号的第一和第二部分的第一和第二GPS传感器 指定的导航卫星，被称为第一和第二数据报的记录。 将第一和第二数据报发送到数据报处理设备，其中从第一GPS传感器到指定的导航卫星的伪距离被提取。 用于提取伪距离的数据报处理设备还包括用于从由第一GPS传感器接收的数据报提取伪距离的伪距引擎。 要确定的位置，借助于完美的参考完成提取; 以及一个完美的参考引擎，用于从为完美参考生成的明确目的而被指定的第二个GPS传感器的数据报产生完美的参考。

公开(公告)号：US20100283672A1

公开(公告)日：2010-11-11

申请号：US12387888

申请日：2009-05-09

Applicant: Farrokh Farrokhi ,  Dickson Wong ,  Arthur J. Collmeyer

Inventor： Farrokh Farrokhi ,  Dickson Wong ,  Arthur J. Collmeyer

IPC: G01S19/42

CPC classification number: G01S19/22

Abstract: A system for measuring the pseudo range from a first GPS sensor to a designated navigational satellite, for use in a satellite positioning system (SPS) is comprised of first and second GPS sensors for receiving and recording first and second portions of the signal transmitted by the designated navigational satellite, the recordings referred to as the first and second datagrams; and means for transmitting the first and second datagrams to a datagram processing facility wherein the pseudo range from the first GPS sensor to the designated navigational satellite is extracted. The datagram processing facility for extracting the pseudo range is further comprised of a pseudo range engine for extracting a pseudo range from a datagram originating with said first GPS sensor, the location of which is to be determined, the extraction accomplished with the aid of a perfect reference; and a perfect reference engine for generating a perfect reference from a datagram originating with a second GPS sensor designated for the express purpose of perfect reference generation. The perfect reference reduces the minimum number of satellites required to fix a position from four to three, and further enables the pseudo range engine to recombine multi-path GPS signals.

Abstract translation: 用于测量从第一GPS传感器到指定导航卫星的用于卫星定位系统（SPS）的伪距离的系统包括用于接收和记录由所述卫星定位系统（SPS）发送的信号的第一和第二部分的第一和第二GPS传感器 指定的导航卫星，被称为第一和第二数据报的记录; 以及用于将第一和第二数据报发送到数据报处理设施的装置，其中提取从第一GPS传感器到指定的导航卫星的伪距离。 用于提取伪距离的数据报处理设备还包括伪距离引擎，用于从源自所述第一GPS传感器的数据报中提取伪距离，其位置将被确定，借助于完美的 参考; 以及一个完美的参考引擎，用于从为完美参考生成的明确目的而被指定的第二个GPS传感器的数据报产生完美的参考。 完美的参考将将位置固定为4到3所需的最少卫星数量减少，并进一步使伪距引擎重新组合多路径GPS信号。

公开(公告)号：US20180329018A9

公开(公告)日：2018-11-15

申请号：US12924618

申请日：2010-10-01

Applicant: Farrokh Farrokhi ,  Edmund Gregory Lee ,  Dickson T. Wong ,  Arthur J. Collmeyer

Inventor： Farrokh Farrokhi ,  Edmund Gregory Lee ,  Dickson T. Wong ,  Arthur J. Collmeyer

IPC: G01S5/02 ,  G01S19/05 ,  G01S19/42

CPC classification number: G01S5/0252 ,  G01S19/05 ,  G01S19/42

Abstract: A method for estimating the location of a beacon from an ensemble of measurements associated with said beacon, where, contained in each measurement, are GPS data from which surfaces of location may be extracted, together with the ID's of beacons detectable at the point of measurement, is disclosed. The method comprises extracting the canonical set of surfaces of location implicit in each of the associated measurements, and determining the estimate of the location of the beacon as the point for which a weighted sum of the squares of the distances to each of the surfaces so extracted is minimized. A system for the compilation of a database of beacon locations from measurements containing a time-stamped recording of the composite GPS signal (which recording is referred to as a datagram), together with the ID's and associated signal strengths of beacons detectable at the point of measurement, is also disclosed. The system comprises GPS signal processing means for extracting, from each time-stamped datagram, the canonic set of surfaces of location, and beacon location estimation means for estimating the location of a beacon from an ensemble of surfaces of location associated with said beacon.

公开(公告)号：US09749012B2

公开(公告)日：2017-08-29

申请号：US14214095

申请日：2014-03-14

Applicant: Farrokh Farrokhi ,  Michael Anburaj

Inventor： Farrokh Farrokhi ,  Michael Anburaj

IPC: H04B3/54 ,  H04J3/06 ,  H04L7/04

CPC classification number: H04B3/54 ,  H04B2203/542 ,  H04J3/0638 ,  H04L2007/047

Abstract: A method and a device are disclosed including a PLC node having a synchronizer, a modem with a transceiver, and a computing device coupled with a power line for power line data communications. In various embodiments, a coordinator or Data Concentrator Unit (DCU) coordinates the communication of PLC nodes. The PLC nodes are configured to detect a zero crossing of the power line wave form and transmit or receive data within time slots defined with respect to the detected zero crossing. In other embodiments, the time slots may be synchronized using a frame sync signal, an external signal, or polling. In various embodiments, the time slots may be random access or assigned. In some embodiments, the modem and/or node may be placed in a sleep mode when not communicating to reduce power consumption and be awaken when an allocated time slot is approaching.