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    Adapting an operating mode of a signal processor
    11.
    发明授权
    Adapting an operating mode of a signal processor 有权
    适应信号处理器的工作模式

    公开(公告)号：US09100143B1

    公开(公告)日：2015-08-04

    申请号：US14155648

    申请日：2014-01-15

    Applicant: L-3 Communications Corp.

    Inventor： Kim J. Olszewski ,  Joshua D. Gunn

    IPC: H04L1/00

    CPC classification number: H04L25/03019 ,  H04L2025/03726

    Abstract: A multi-mode parameter adaptation module can comprise different modes for generating parameters to minimize an error between an output of an adaptive processor and an ideal output of the adaptive processor. A mode control module can monitor a performance signal p indicative of an operating condition a receiver of which the adaptive processor is a part. Upon detecting a change condition form the performance signal p, the mode control module can change the operating mode of the parameter adaptation module to suit the current operating condition.

    Abstract translation: 多模式参数适配模块可以包括用于产生参数以使自适应处理器的输出与自适应处理器的理想输出之间的误差最小化的不同模式。 模式控制模块可以监视表示自适应处理器是其一部分的接收机的操作条件的性能信号p。 在从性能信号p检测到改变状态时，模式控制模块可以改变参数适配模块的操作模式以适应当前操作状态。

    Digital architecture for encoding a return-to-zero differential phase shift keying waveform
    12.
    发明授权
    Digital architecture for encoding a return-to-zero differential phase shift keying waveform 有权
    用于编码归零差分相移键控波形的数字架构

    公开(公告)号：US09001925B1

    公开(公告)日：2015-04-07

    申请号：US14317339

    申请日：2014-06-27

    Applicant: L-3 Communications Corp.

    Inventor： L. Carl Christensen ,  Bonnie A. Uresk ,  Justin D. Perry ,  Michael D. Rivers ,  John L. Metz ,  Larry H. Steinhorst

    IPC: H04L27/00 ,  H04B10/516 ,  H04B10/556

    CPC classification number: H04B10/5162 ,  H04B10/5561

    Abstract: A return-to-zero control signal for controlling a modulator can be generated from two separate streams. A first data stream can include a pulse for each logical one that appears in an input data stream, while a second data stream can include a pulse for each logical zero that appears in the input data stream. The first and second data streams can be combined in a manner that yields the return-to-zero control signal. The first and second data streams can be generated in digital circuitry, such as an FPGA, to minimize the analog path for generating the return-to-zero control signal.

    Abstract translation: 用于控制调制器的归零控制信号可以从两个独立的流产生。 第一数据流可以包括出现在输入数据流中的每个逻辑1的脉冲，而第二数据流可以包括出现在输入数据流中的每个逻辑零的脉冲。 可以以产生归零控制信号的方式组合第一和第二数据流。 第一和第二数据流可以在诸如FPGA的数字电路中生成，以最小化用于产生归零控制信号的模拟路径。

    Spectral sensing demodulator
    13.
    发明授权
    Spectral sensing demodulator 有权
    光谱传感解调器

    公开(公告)号：US08786939B1

    公开(公告)日：2014-07-22

    申请号：US14152408

    申请日：2014-01-10

    Applicant: L-3 Communications Corp.

    Inventor： Thomas R. Giallorenzi ,  Samuel C. Kingston ,  Robert G. Rebolledo ,  Osama S. Haddadin

    IPC: G02F2/00

    CPC classification number: H04J1/08 ,  H03H17/0266 ,  H04L5/06 ,  H04L25/03057 ,  H04L27/0006 ,  H04L27/264 ,  H04L27/2666 ,  H04L2025/03503

    Abstract: A spectral sensing demodulator can include a programmable filter bank and a reconfigurable processor coupled to the programmable filter bank. The programmable filter bank can frequency demultiplex a plurality of frequency division multiplexed channels from a frequency band into a plurality of demultiplexed channels. The reconfigurable processor can include a plurality of reconfigurable resources. Each resource can be alternatively be configured to demodulate a demultiplexed channel and to monitor a demultiplexed channel.

    Abstract translation: 频谱感测解调器可以包括可编程滤波器组和耦合到可编程滤波器组的可重构处理器。 可编程滤波器组可以将多个频分复用的信道从频带分解成多个解复用的信道。 可重构处理器可以包括多个可重新配置的资源。 可替代地，每个资源被配置为解调解复用的信道并监视解复用的信道。

    Transmitter-directed security for wireless-communications
    14.
    发明授权
    Transmitter-directed security for wireless-communications 有权
    用于无线通信的发射机定向安全

    公开(公告)号：US08358613B1

    公开(公告)日：2013-01-22

    申请号：US12394429

    申请日：2009-02-27

    Applicant: Tom Giallorenzi ,  Eric Hall ,  Osama Haddadin ,  Dan Watt ,  James Dyal

    Inventor： Tom Giallorenzi ,  Eric Hall ,  Osama Haddadin ,  Dan Watt ,  James Dyal

    IPC: H04Q7/00

    CPC classification number: H04W12/02

    Abstract: Transmitter-directed transmission security is provided between a transmit node and a receive node. The transmit node selects transmission format for each data frame based on a transmission security scenario. Information related to the transmission format is communicated between the transmit node and the receive node, and the data frames are transmitted over a wireless communication link using the selected transmission formats.

    Abstract translation: 在发射节点和接收节点之间提供发射机定向的传输安全性。 发送节点基于传输安全场景选择每个数据帧的传输格式。 与发送格式相关的信息在发送节点和接收节点之间进行通信，并且使用所选择的发送格式通过无线通信链路发送数据帧。

    Direct sequence spread spectrum system and method with plural chipping rates
    16.
    发明授权
    Direct sequence spread spectrum system and method with plural chipping rates 有权
    直接序列扩频系统和方法具有多个切片率

    公开(公告)号：US08102897B1

    公开(公告)日：2012-01-24

    申请号：US12361128

    申请日：2009-01-28

    Applicant: Vaughn L. Mower ,  Merle L. Keller ,  Kent R. Bruening

    Inventor： Vaughn L. Mower ,  Merle L. Keller ,  Kent R. Bruening

    IPC: H04B1/69

    CPC classification number: H04B1/707 ,  H04B2201/70703

    Abstract: Direct sequence spread spectrum communications can use composite codes and can operate at a plurality of different chipping rates. The composite codes can be formed using a plurality of component codes, wherein the component codes can be relatively prime and at least one of the nominal lengths of the component codes can include a plurality of prime number multiplicands. The chipping rate and code length can be reduced by dividing a master rate by one or more of the prime number multiplicands. Symbol timing and time division multiple access timing can be tied to epochs of the component codes.

    Abstract translation: 直接序列扩频通信可以使用复合码，并可以以多种不同的码片速率进行操作。 可以使用多个分量代码来形成复合码，其中分量码可以是相对素数，并且分量码的标称长度中的至少一个可以包括多个素数被乘数。 可以通过将主速率除以一个或多个素数被乘数来减少码片速率和码长。 符号定时和时分多址定时可以与组件代码的时代相关联。

    System and method for memory-based parallel PN generation
    18.
    发明授权
    System and method for memory-based parallel PN generation 有权
    基于内存的并行PN生成系统和方法

    公开(公告)号：US07953781B1

    公开(公告)日：2011-05-31

    申请号：US11754922

    申请日：2007-05-29

    Applicant: Ayyoob Abbaszadeh ,  Altaf Rahman ,  Merle Keller

    Inventor： Ayyoob Abbaszadeh ,  Altaf Rahman ,  Merle Keller

    IPC: G06F7/58

    CPC classification number: G06F7/582

    Abstract: A system and method for parallel Pseudo-random Noise (PN) code generation is disclosed. The method includes the operation of producing a PN code sequence having a predetermined length. The PN code can be divided into L segments. At least one of the L segments can have a length less than other segments. The L segments can be distributed into an array of L digital memories. Each of the digital memories can output every Lth chip of the PN code in parallel at a selected rate. An element of the PN code can be substituted from an element substitution cache into the output of the L digital memories to compensate for segment(s) having a shorter length.

    Abstract translation: 公开了一种用于并行伪随机噪声（PN）码生成的系统和方法。 该方法包括产生具有预定长度的PN码序列的操作。 PN码可以分为L段。 L段中的至少一个可以具有小于其他段的长度。 L段可以分布到L数字存储器的阵列中。 每个数字存储器可以以选定的速率并行输出PN码的每个Lth码片。 PN代码的元素可以从元素替换高速缓存代入L数字存储器的输出以补偿具有较短长度的段。

    System and method for split isolation in radio frequency electronics
    19.
    发明授权
    System and method for split isolation in radio frequency electronics 有权
    射频电子学分离隔离系统及方法

    公开(公告)号：US07920491B1

    公开(公告)日：2011-04-05

    申请号：US12723868

    申请日：2010-03-15

    Applicant: Gary R. Dunn, Jr. ,  Richard A. McNamee

    Inventor： Gary R. Dunn, Jr. ,  Richard A. McNamee

    IPC: H04B7/005 ,  H04B3/20

    CPC classification number: H04B1/525

    Abstract: A system and method for designing a full duplex communications transceiver to enable a reduction in isolation between a transmit signal and a receive signal at a diplexer is disclosed. An RFE transmit filter attenuation level can be determined to be sufficient to attenuate a noise power of the transmitter below a thermal noise floor of the power amplifier. A minimum diplexer transmit filter attenuation level can be calculated to attenuate noise power output from the power amplifier in the receive band to a level below a noise floor of the receiver.

    Abstract translation: 公开了一种用于设计全双工通信收发器以在双工器中实现发送信号和接收信号之间的隔离的减少的系统和方法。 可以确定RFE发射滤波器衰减电平足以将发射机的噪声功率衰减到功率放大器的热噪声底层之下。 可以计算最小双工器发射滤波器衰减电平，以将从接收频带中的功率放大器输出的噪声功率衰减到低于接收机本底噪声的水平。

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