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1. 发明申请

WO2012100240A2 HIGH RESOLUTION WIRELESS INDOOR POSITIONING SYSTEM FOR LEGACY STANDARDS-BASED NARROWBAND MOBILE RADIOS 审中-公开
标题翻译：基于遗传标准的窄带移动无线电高分辨率无线室内定位系统
公开(公告)号：WO2012100240A2
公开(公告)日：2012-07-26
申请号：PCT/US2012/022138
申请日：2012-01-22
申请人： DIANI SYSTEMS, INC. , SUGAR, Gary L. , VAIDYANATHAN, Chandra , TESFAI, Yohannes
发明人： SUGAR, Gary L. , VAIDYANATHAN, Chandra , TESFAI, Yohannes
IPC分类号： G01S5/02 , H04W64/00 , H04J11/00
CPC分类号： G01S11/02 , G01S3/48 , G01S5/0215 , G01S5/0221 , H04L27/2657 , H04L27/2662 , H04W64/00
摘要： Two or more data packets transmitted through a wireless channel are received using a receiver device. The two or more data packets are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. Each data packet of the two or more data packets is transmitted at a single center frequency. Time differences and/or carrier phase differences among the two or more transmissions are estimated. A time-of-arrival of one or more data packets of the two or more data packets is calculated using each data packet of the two or more data packets and one or more of the estimated time differences, the different center frequencies, and the estimated carrier phase differences.
摘要翻译：使用接收机设备接收通过无线信道发送的两个或更多个数据分组。两个或更多个数据分组是两个或更多个传输的结果，其以不同的中心频率在时间上连续地进行以跨越期望的带宽。两个或更多数据分组中的每个数据分组以单个中心频率发送。估计两个或更多个传输之间的时间差和/或载波相位差。使用两个或更多个数据分组中的每个数据分组以及一个或更多个估计的时间差，不同的中心频率和估计的两个或更多个数据分组中的一个或更多个数据分组的到达时间载波相位差异。

2. 发明申请

WO2012061479A1 SYSTEM AND METHOD FOR HIGH RESOLUTION INDOOR POSITIONING USING A NARROWBAND RF TRANSCEIVER 审中-公开
标题翻译：使用窄带RF收发器的高分辨率室内定位的系统和方法
公开(公告)号：WO2012061479A1
公开(公告)日：2012-05-10
申请号：PCT/US2011/058928
申请日：2011-11-02
申请人： DIANI SYSTEMS, INC. , VAIDYANATHAN, Chandra , SUGAR, Gary L. , TESFAI, Yohannes
发明人： VAIDYANATHAN, Chandra , SUGAR, Gary L. , TESFAI, Yohannes
IPC分类号： G01S5/04
CPC分类号： G01S1/20 , G01S1/024 , G01S5/021 , G01S5/0226 , G01S5/14 , H04B1/69 , H04W64/00
摘要： A sequence of two or more signals representing two or more data packets is transmitted through a wireless channel using a transmitter device. The two or more signals are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. At least one of the two or more signals includes a physical layer preamble. The sequence of two or more signals is received using a receiver device. A time of arrival of one or more signals of the received sequence is calculated using one or more of the received sequence, the time differences among the two or more transmissions, the different center frequencies, information from the two or more data packets, and any carrier phase differences among the two or more transmissions using the receiver device.
摘要翻译：通过使用发射机设备的无线信道来发送表示两个或更多个数据分组的两个或更多个信号的序列。两个或更多个信号是在不同的中心频率上按时间顺序进行的两个或多个传输的结果，以便跨越期望的带宽。两个或更多个信号中的至少一个包括物理层前导码。使用接收器装置接收两个或更多个信号的序列。使用所接收的序列中的一个或多个，两个或多个传输之间的时间差，不同的中心频率，来自两个或多个数据分组的信息，以及任何使用接收机设备的两个或更多个传输之间的载波相位差。

3. 发明申请

WO2003075471A3 SYSTEM AND METHOD FOR JOINT MAXIMAL RATIO COMBINING 审中-公开
公开(公告)号：WO2003075471A3
公开(公告)日：2003-09-12
申请号：PCT/US2003/005647
申请日：2003-02-26
申请人： COGNIO, INC. , TESFAI, Yohannes , VAIDYANATHAN, Chandra , SUGAR, Gary, L.
发明人： TESFAI, Yohannes , VAIDYANATHAN, Chandra , SUGAR, Gary, L.
IPC分类号： H04B1/38
摘要： A spatial signal processing system and method are provided to optimize the received signal-to-noise ratio (SNR) at a first radio communication device (100) based on the transmit filter at another radio communication (200). Using an estimate of the channel derived from a signal received at one device from another device, an iterative process is provided to determine complex weights for one or more tapped delay-line transmit filters at each of two communication devices that optimize the received SNR.

4. 发明申请

WO2003075396A3 SYSTEM AND METHOD FOR ANTENNA DIVERSITY USING JOINT MAXIMAL RATIO COMBINING 审中-公开
公开(公告)号：WO2003075396A3
公开(公告)日：2003-09-12
申请号：PCT/US2003/005642
申请日：2003-02-26
申请人： COGNIO, INC. , SUGAR, Gary, L. , VAIDYANATHAN, Chandra , TESFAI, Yohannes
发明人： SUGAR, Gary, L. , VAIDYANATHAN, Chandra , TESFAI, Yohannes
IPC分类号： H04M1/00
摘要： A composite beamforming technique is provided wherein a first communication device (100) has a plurality of antennas (110) and the second communication (200) has a plurality of antennas (210). When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The second communication device determines the best receive weight vector for the its antennas, and from that vector, derives a suitable transmit weight vector for transmission on the plurality of antennas back to the first communication device. Several techniques are provided to determine the optimum transmit weight vector and receive weight vector for communication between the first and second communication devices so that there is effectively joint or composite beamforming between the communication devices.

5. 发明申请

WO2003075396A2 SYSTEM AND METHOD FOR ANTENNA DIVERSITY USING JOINT MAXIMAL RATIO COMBINING 审中-公开
标题翻译：使用联合最大比率组合的天线多样性的系统和方法
公开(公告)号：WO2003075396A2
公开(公告)日：2003-09-12
申请号：PCT/US2003/005642
申请日：2003-02-26
申请人： COGNIO, INC. , SUGAR, Gary, L. , VAIDYANATHAN, Chandra , TESFAI, Yohannes
发明人： SUGAR, Gary, L. , VAIDYANATHAN, Chandra , TESFAI, Yohannes
IPC分类号： H01Q
CPC分类号： H04L5/0007 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0417 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0671 , H04B7/0845 , H04B7/0848 , H04B7/0854 , H04B7/0857 , H04L1/06 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L27/2602 , H04L27/2626 , H04L2025/03426 , H04L2025/03611 , H04W52/42
摘要： A composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The second communication device determines the best receive weight vector for the its antennas, and from that vector, derives a suitable transmit weight vector for transmission on the plurality of antennas back to the first communication device. Several techniques are provided to determine the optimum transmit weight vector and receive weight vector for communication between the first and second communication devices so that there is effectively joint or composite beamforming between the communication devices.
摘要翻译：提供一种组合波束形成技术，其中第一通信设备具有多个天线，并且第二通信具有多个天线。当第一通信设备向第二通信设备发送时，将发送信号乘以用于由多个天线中的每一个发送的发送权重向量，并且在第二通信设备处由多个天线接收发送信号。第二通信设备确定其天线的最佳接收权重向量，并且从该向量导出用于在多个天线上发送回到第一通信设备的合适的发射权重向量。提供了几种技术来确定用于第一和第二通信设备之间的通信的最佳发送权重向量和接收权重向量，使得在通信设备之间有效地进行联合或合成波束形成。

6. 发明申请

WO2012154465A1 DISTINGUISHING BETWEEN BLUETOOTH VOICE AND DATA LINKS 审中-公开
标题翻译：蓝牙声音和数据链接之间的差异
公开(公告)号：WO2012154465A1
公开(公告)日：2012-11-15
申请号：PCT/US2012/036099
申请日：2012-05-02
申请人： CISCO TECHNOLOGY, INC. , RAGHURAM, Rangarajan , KLOPER, David , TESFAI, Yohannes
发明人： RAGHURAM, Rangarajan , KLOPER, David , TESFAI, Yohannes
IPC分类号： H04L1/00
CPC分类号： H04L1/0046 , H04L1/0072 , H04L1/0091
摘要： Techniques are provided for receiving a transmitted first packet that was formatted using a known scrambling algorithm with an unknown scrambling seed. An encoded packet payload is extracted from the first packet header. The encoded packet payload header is decoded to obtain a first scrambled packet payload header. For each potential value of the unknown seed, the first scrambled packet payload header is descrambled to produce a first set of descrambled packet payload headers and for each potential value of initial register values associated with a cyclic redundancy check, the cyclic redundancy check is executed comprising polynomial division on each of the descrambled packet payload headers such that when the polynomial division results in a zero remainder, a potential unscrambled payload header for the first packet is obtained. Information about the first packet is obtained from the potential unscrambled payload header.
摘要翻译：提供了用于接收使用具有未知加扰种子的已知加扰算法格式化的所发送的第一分组的技术。从第一分组报头中提取编码分组有效载荷。编码分组有效载荷头部被解码以获得第一加扰分组有效载荷头部。对于未知种子的每个潜在值，第一加扰分组有效载荷报头被解扰以产生第一组解扰分组有效载荷报头，并且对于与循环冗余校验相关联的初始寄存器值的每个潜在值，执行循环冗余校验，包括每个解扰分组有效载荷头部上的多项式除法使得当多项式除法导致零余数时，获得用于第一分组的潜在未加扰的有效负载报头。关于第一分组的信息是从潜在的未加扰的有效负载报头获得的。

7. 发明申请

WO2006065617A2 MATCHING RECEIVE SIGNAL STRENGTH DATA ASSOCIATED WITH RADIO EMISSION SOURCES FOR POSITIONING APPLICATIONS 审中-公开
标题翻译：匹配与无线电发射源相关的信号强度数据，用于定位应用
公开(公告)号：WO2006065617A2
公开(公告)日：2006-06-22
申请号：PCT/US2005/044425
申请日：2005-12-07
申请人： COGNIO, INC. , TESFAI, Yohannes
发明人： TESFAI, Yohannes
IPC分类号： H04B17/00
CPC分类号： G01S5/0252
摘要： A system, method and software for determining a position of a source of a radio emission. Receive signal strength data associated with reception of radio emissions is generated at each of a plurality of radio sensor devices that are at corresponding known positions in an area where the radio emissions are occurring. Using characteristics associated with reception of the radio emissions at each of the sensor devices, the receive signal strength data generated by each of the sensors is matched as corresponding to a radio emission from the same source. The characteristics used to match receive signal strength data may include spectrum analysis data and/or timing analysis data. Once the receive signal strength data is matched, position computations may be performed on the appropriate set of receive signal strength data to compute the position of the source of the radio emission.
摘要翻译：一种用于确定无线电发射源的位置的系统，方法和软件。在发生无线电发射的区域中的相应已知位置处的多个无线电传感器装置中的每一个处产生与接收无线电发射相关联的接收信号强度数据。使用与在每个传感器装置处的无线电发射的接收相关联的特性，将由每个传感器生成的接收信号强度数据与来自相同源的无线电发射相对应。用于匹配接收信号强度数据的特征可以包括频谱分析数据和/或定时分析数据。一旦接收信号强度数据匹配，可以对适当的接收信号强度数据集执行位置计算，以计算无线电发射源的位置。

8. 发明公开

EP2635917A1 SYSTEM AND METHOD FOR HIGH RESOLUTION INDOOR POSITIONING USING A NARROWBAND RF TRANSCEIVER 审中-公开
标题翻译：系统和方法与窄带RF收发器高分辨率室内定位
公开(公告)号：EP2635917A1
公开(公告)日：2013-09-11
申请号：EP11838734.9
申请日：2011-11-02
申请人： Diani Systems, Inc.
发明人： VAIDYANATHAN, Chandra , SUGAR, Gary L. , TESFAI, Yohannes
IPC分类号： G01S5/04
CPC分类号： G01S1/20 , G01S1/024 , G01S5/021 , G01S5/0226 , G01S5/14 , H04B1/69 , H04W64/00
摘要： A sequence of two or more signals representing two or more data packets is transmitted through a wireless channel using a transmitter device. The two or more signals are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. At least one of the two or more signals includes a physical layer preamble. The sequence of two or more signals is received using a receiver device. A time of arrival of one or more signals of the received sequence is calculated using one or more of the received sequence, the time differences among the two or more transmissions, the different center frequencies, information from the two or more data packets, and any carrier phase differences among the two or more transmissions using the receiver device.

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