中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

884 records (took 0.038 seconds)

    Multi-path detection
    11.
    发明授权
    Multi-path detection 有权
    多路径检测

    公开(公告)号：US09236903B2

    公开(公告)日：2016-01-12

    申请号：US14234924

    申请日：2012-07-12

    Applicant: Philip Mattos

    Inventor： Philip Mattos

    IPC: H04B1/709 ,  H04B1/711 ,  H04B1/7103

    CPC classification number: H04B1/711 ,  H04B1/7103 ,  H04B2201/70715 ,  H04B2201/709718

    Abstract: A method for detecting multi-path interference in a spread-spectrum signal. A variation of a first signal and a variation of a second signal is compared. The variation of the first signal corresponds to a correlation of the spread-spectrum signal and a spreading code having a first offset. The variation of the second signal corresponds to a correlation of the spread-spectrum signal and the spreading code having a second offset. Multi-path interference is detected in dependence on the comparison.

    Abstract translation: 一种用于检测扩频信号中的多径干扰的方法。 比较第一信号的变化和第二信号的变化。 第一信号的变化对应于扩频信号和具有第一偏移的扩展码的相关。 第二信号的变化对应于扩频信号和具有第二偏移的扩展码的相关。 根据比较检测多路径干扰。

    Noise Distribution Shaping for Signals, Particularly CDMA Signals
    12.
    发明申请
    Noise Distribution Shaping for Signals, Particularly CDMA Signals 审中-公开
    用于信号的噪声分布整形，特别是CDMA信号

    公开(公告)号：US20150365130A1

    公开(公告)日：2015-12-17

    申请号：US14738250

    申请日：2015-06-12

    Applicant: Airbus DS GmbH

    Inventor： Francis SOUALLE ,  Mathieu CATTENOZ

    IPC: H04B1/7107 ,  H04J13/00

    CPC classification number: H04B1/7107 ,  H04B1/1027 ,  H04B1/7097 ,  H04B2201/70715 ,  H04J13/0003

    Abstract: A method is provided for noise distribution shaping of signals, particularly for the application in receivers for CDMA signals. The method includes the acts of generating a blanking control signal by comparing a received signal with at least one blanking threshold, adapting the at least one blanking threshold or the received signal according to an offset value depending on the amplitude of the received signal, and modifying the noise distribution of the received signal by applying blanking of the received signal under control of the blanking control signal.

    Abstract translation: 提供了一种用于信号的噪声分布整形的方法，特别是用于CDMA信号的接收机中的应用。 该方法包括通过将接收到的信号与至少一个消隐阈值进行比较来产生消隐控制信号的动作，根据接收信号的幅度根据偏移值调整至少一个消隐阈值或接收信号，以及修改 通过在消隐控制信号的控制下对接收到的信号进行消隐，来接收信号的噪声分布。

    Methods for managing alignment and latency in interference suppression
    14.
    发明授权
    Methods for managing alignment and latency in interference suppression 有权
    用于管理干扰抑制中的对准和延迟的方法

    公开(公告)号：US09118400B2

    公开(公告)日：2015-08-25

    申请号：US14490961

    申请日：2014-09-19

    Applicant: III Holdings 1, LLC

    Inventor： Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

    IPC: H04B1/7097 ,  G01S5/02 ,  G01S19/22 ,  H04B1/7105 ,  H04B1/7117 ,  H04B1/7093 ,  G01S5/10

    CPC classification number: H04B1/7097 ,  G01S5/0215 ,  G01S5/10 ,  G01S19/22 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70715

    Abstract: An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.

    Abstract translation: 干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。 从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。 对干扰消除数据的每个段计算符号估计的至少两个段。 可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

    ENHANCED CROSS CORRELATION DETECTION OR MITIGATION CIRCUITS, PROCESSES, DEVICES, RECEIVERS AND SYSTEMS
    15.
    发明申请
    ENHANCED CROSS CORRELATION DETECTION OR MITIGATION CIRCUITS, PROCESSES, DEVICES, RECEIVERS AND SYSTEMS 审中-公开
    增强交叉相关检测或缓解电路，过程，设备，接收器和系统

    公开(公告)号：US20150195003A1

    公开(公告)日：2015-07-09

    申请号：US14632590

    申请日：2015-02-26

    Applicant: Texas Instruments Incorporated

    Inventor： Jawaharlal Tangudu ,  Arun Raghupathy

    IPC: H04B1/7103 ,  H04B1/7073 ,  H04B1/709

    CPC classification number: G01S19/21 ,  H04B1/70755 ,  H04B2201/70715

    Abstract: A receiver (100) is provided for signals of different signal strengths and modulated with respective pseudorandom noise (PN) codes. The receiver (100) includes a correlator circuit (120) operable to correlate the signals with a selectable locally-issued PN code having a Doppler and a code lag to produce a peak, the correlator circuit (120) being subject to cross correlation with a distinct PN code carried by least one of the signals that can produce cross correlation; and a cross correlation circuit (370, 400) operable to generate a variable comparison value related to the cross correlation as a function of values representing a Doppler difference and a code lag difference between the locally-issued PN code and the distinct PN code, and to use the variable comparison value to reject the peak as invalid from cross correlation or to pass the peak as a valid received peak.

    Abstract translation: 为不同信号强度的信号提供接收机（100），并用各自的伪随机噪声（PN）码进行调制。 接收器（100）包括相关器电路（120），其可操作以将信号与具有多普勒和码滞后的可选择本地发出的PN码相关以产生峰值，所述相关器电路（120）与 不同PN码携带的信号中至少有一个会产生互相关; 以及互相关电路（370,400），其可操作以根据表示本地发出的PN码和不同PN码之间的多普勒差和码滞差的值产生与互相关的可变比较值，以及 使用可变比较值将峰值从互相关中排除为无效，或将峰值作为有效接收峰值传递。

    Mitigation circuitry generating cross correlation doppler/code LAG variable comparison value
    17.
    发明授权
    Mitigation circuitry generating cross correlation doppler/code LAG variable comparison value 有权
    产生互相关多普勒/代码LAG变量比较值的缓解电路

    公开(公告)号：US09036683B2

    公开(公告)日：2015-05-19

    申请号：US12719965

    申请日：2010-03-09

    Applicant: Jawaharlal Tangudu ,  Arun Raghupathy

    Inventor： Jawaharlal Tangudu ,  Arun Raghupathy

    IPC: H04B1/00 ,  H04B1/7075 ,  G01S19/21

    CPC classification number: G01S19/21 ,  H04B1/70755 ,  H04B2201/70715

    Abstract: A receiver (100) is provided for signals of different signal strengths and modulated with respective pseudorandom noise (PN) codes. The receiver (100) includes a correlator circuit (120) operable to correlate the signals with a selectable locally-issued PN code having a Doppler and a code lag to produce a peak, the correlator circuit (120) being subject to cross correlation with a distinct PN code carried by least one of the signals that can produce cross correlation; and a cross correlation circuit (370, 400) operable to generate a variable comparison value related to the cross correlation as a function of values representing a Doppler difference and a code lag difference between the locally-issued PN code and the distinct PN code, and to use the variable comparison value to reject the peak as invalid from cross correlation or to pass the peak as a valid received peak.

    Abstract translation: 为不同信号强度的信号提供接收机（100），并用各自的伪随机噪声（PN）码进行调制。 接收器（100）包括相关器电路（120），其可操作以将信号与具有多普勒和码滞后的可选择本地发出的PN码相关以产生峰值，所述相关器电路（120）与 不同PN码携带的信号中至少有一个会产生互相关; 以及互相关电路（370,400），其可操作以根据表示本地发出的PN码和不同PN码之间的多普勒差和码滞差的值产生与互相关的可变比较值，以及 使用可变比较值将峰值从互相关中排除为无效，或将峰值作为有效接收峰值传递。

    Virtual floating correlators for GPS sensor
    18.
    发明授权
    Virtual floating correlators for GPS sensor 有权
    GPS传感器的虚拟浮动相关器

    公开(公告)号：US09031118B2

    公开(公告)日：2015-05-12

    申请号：US13897929

    申请日：2013-05-20

    Applicant: Avidyne Corporation

    Inventor： Angelo Joseph ,  David McCoy

    IPC: H04B1/00 ,  G01S19/24 ,  G01S19/30 ,  H04B1/709

    CPC classification number: G01S19/24 ,  G01S19/30 ,  H04B1/709 ,  H04B2201/70715

    Abstract: In one embodiment, a correlator of a global positioning system receiver in a global positioning system receives a sample satellite signal. The correlator includes a signal comparator configured to receive the sample signal, a first normalized estimate signal, and a second normalized estimate signal. The signal comparator generates a first accumulated output and a second accumulated output. The first accumulated output represents the integration of a correlation of the sample signal and the first normalized estimate signal. The second accumulated output represents the integration of a correlation of the sample signal and the second normalized estimate signal. Using time-multiplexing, the high speed of a digital signal processing core is leveraged to perform calculations of the signal comparator and threshold comparator in real time.

    Abstract translation: 在一个实施例中，全球定位系统中的全球定位系统接收机的相关器接收采样卫星信号。 相关器包括被配置为接收采样信号，第一归一化估计信号和第二归一化估计信号的信号比较器。 信号比较器产生第一累积输出和第二累积输出。 第一累积输出表示采样信号和第一归一化估计信号的相关的积分。 第二累积输出表示采样信号和第二归一化估计信号的相关的积分。 利用时间复用，利用数字信号处理核心的高速实时执行信号比较器和阈值比较器的计算。

    METHODS FOR MANAGING ALIGNMENT AND LATENCY IN INTERFERENCE SUPPRESSION
    19.
    发明申请
    METHODS FOR MANAGING ALIGNMENT AND LATENCY IN INTERFERENCE SUPPRESSION 有权
    用于在干扰抑制中管理对齐和延迟的方法

    公开(公告)号：US20150010043A1

    公开(公告)日：2015-01-08

    申请号：US14490961

    申请日：2014-09-19

    Applicant: Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

    Inventor： Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

    IPC: H04B1/7097 ,  H04B1/7093

    CPC classification number: H04B1/7097 ,  G01S5/0215 ,  G01S5/10 ,  G01S19/22 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70715

    Abstract: An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.

    Abstract translation: 干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。 从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。 对干扰消除数据的每个段计算符号估计的至少两个段。 可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

Patent Agency Ranking