公开(公告)号：US20100081387A1

公开(公告)日：2010-04-01

申请号：US12241019

申请日：2008-09-29

申请人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

发明人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

IPC分类号： H04B17/00

CPC分类号： H04B17/318

摘要： A cognitive radio wireless device (114) dynamically manages signal detection in a cognitive radio system (100). Spectrum sensing is performed for a first sensing frame on at least one communication channel. At least one observed signal is received (204) on the at least one communication channel. A detection decision (210) is performed to determine if the observed signal is noise or an active signal associated with an active user. The detection decision (210) is performed by comparing observed signal energy estimation with a current detection threshold. The current detection threshold can be an arbitrarily defined threshold or a detection threshold based on a previous detection decision for a sensing frame immediately prior to the first sensing frame.

摘要翻译： 认知无线电无线设备（114）动态地管理认知无线电系统（100）中的信号检测。 对至少一个通信信道上的第一感测帧执行频谱感测。 在至少一个通信信道上接收至少一个观察信号（204）。 执行检测决定（210）以确定观察到的信号是否是噪声或与活动用户相关联的活动信号。 通过将观测信号能量估计与电流检测阈值进行比较来执行检测决定（210）。 根据紧接在第一感测帧之前的感测帧的先前检测判定，当前检测阈值可以是任意定义的阈值或检测阈值。

公开(公告)号：US20090247201A1

公开(公告)日：2009-10-01

申请号：US12059898

申请日：2008-03-31

申请人： Zhuan Ye ,  Alan Bok ,  Neiyer Correal ,  Spyros Kyperountas ,  Qicai Shi

发明人： Zhuan Ye ,  Alan Bok ,  Neiyer Correal ,  Spyros Kyperountas ,  Qicai Shi

IPC分类号： H04W72/00

CPC分类号： H04W16/14 ,  H04W24/00 ,  H04W74/0808

摘要： A method, wireless controller, and information processing system are provided to dynamically allocate spectrum sensing resources. A first input (804) including available sensing session time for performing spectrum sensing with respect to one or more primary systems (102) is received. A second input (806) including a set of communication channels to be monitored in the spectrum sensing session is received. A third input (808) including detection constraints associated with a plurality of available sensing nodes (114) in a secondary network (104) for performing the spectrum sensing is received. Spectrum sensing resources are dynamically allocated (814) among a set of the plurality of available sensing nodes (114) based on the first (804), second (806), and third inputs (808).

摘要翻译： 提供了一种方法，无线控制器和信息处理系统，以动态分配频谱感测资源。 接收包括用于对一个或多个主系统（102）执行频谱感测的可用感测会话时间的第一输入（804）。 接收包括在频谱感测会话中要监视的一组通信信道的第二输入（806）。 接收包括与用于执行频谱感测的辅助网络（104）中的多个可用感测节点（114）相关联的检测约束的第三输入（808）。 基于第一（804），第二（806）和第三输入（808），频谱感测资源在多个可用感测节点（114）的集合中被动态分配（814）。

公开(公告)号：US07227477B2

公开(公告)日：2007-06-05

申请号：US11289923

申请日：2005-11-30

申请人： Zhuan Ye

发明人： Zhuan Ye

IPC分类号： H03M7/00

CPC分类号： H03H17/0621 ,  H03H17/028

摘要： A digital modulator having a sample rate converter that does not require that the final output sampling rate, FOUT, of the sample rate converter be at least twice as great as the input sampling rate, FIN, of the sample rate converter. The upsampling interpolation filter stages of the sample rate converter of the invention do not require any reference clocks to be provided by the NCO of the sample rate converter. Therefore, the upsampling interpolation filter stages are decoupled from the final output sampling rate, FOUT. The interpolation algorithms may be implemented in software, hardware, or a combination of software and hardware. In addition, the polynomial-based interpolator of the Farrow Structure of the invention is capable of using an even or odd number of basepoints.

摘要翻译： 具有采样率转换器的数字调制器，其不要求采样率转换器的最终输出采样率F OUT OUT至少为输入采样速率的两倍， IN 。 本发明的采样率转换器的上采样内插滤波器级不需要由采样率转换器的NCO提供任何参考时钟。 因此，上采样内插滤波器级与最终输出采样率F OUT OUT分离。 内插算法可以在软件，硬件或软件和硬件的组合中实现。 此外，本发明的Farrow Structure的基于多项式的内插器能够使用偶数或奇数个基点。

公开(公告)号：US20070115157A1

公开(公告)日：2007-05-24

申请号：US11284529

申请日：2005-11-21

申请人： Zhuan Ye

发明人： Zhuan Ye

IPC分类号： H03M3/00

CPC分类号： H03M1/504

摘要： A method and system for generating a double-sided pulse width modulation (PWM) signal (110) is disclosed. The method includes generating a leading edge PWM signal and a trailing edge PWM signal from a pulse code modulation (PCM) data stream (102) using a modulation conversion circuitry (106). The method further includes combining the leading edge PWM signal and the trailing edge PWM signal to form a double-sided PWM signal using a combining circuitry (108).

摘要翻译： 公开了一种用于产生双面脉宽调制（PWM）信号（110）的方法和系统。 该方法包括使用调制转换电路（106）从脉冲编码调制（PCM）数据流（102）生成前沿PWM信号和后沿PWM信号。 该方法还包括使用组合电路（108）组合前沿PWM信号和后沿PWM信号以形成双侧PWM信号。

公开(公告)号：US20050175123A1

公开(公告)日：2005-08-11

申请号：US10776982

申请日：2004-02-11

申请人： David Gurney ,  Anthony Schooler ,  Zhuan Ye ,  Richard DiColli

发明人： David Gurney ,  Anthony Schooler ,  Zhuan Ye ,  Richard DiColli

IPC分类号： H03D1/00 ,  H04L7/04 ,  H04L27/06 ,  H04L27/14 ,  H04L27/22

CPC分类号： H04L27/22 ,  H04L7/007 ,  H04L7/042

摘要： A method for improving burst acquisition in a receiver includes receiving a signal, and performing a sync word search on the signal, wherein the sync word search includes performing a hybrid synchronization technique, the hybrid synchronization technique including both a lower order modulation (e.g., BPSK) detection and correlation process and a higher order modulation (e.g., QPSK) detection and correlation process.

摘要翻译： 一种用于改善接收机中的脉冲串采集的方法，包括：接收信号，对信号执行同步字搜索，其中同步字搜索包括执行混合同步技术，混合同步技术包括低阶调制（例如，BPSK ）检测和相关过程和更高阶调制（例如，QPSK）检测和相关过程。

公开(公告)号：US20130034189A1

公开(公告)日：2013-02-07

申请号：US13204450

申请日：2011-08-05

申请人： Zhuan Ye

发明人： Zhuan Ye

IPC分类号： H04L27/36

CPC分类号： H04L27/36 ,  H04L27/264 ,  H04L27/2697

摘要： Methods and apparatuses are provided for increasing the frequency resolution of a multi-channel QAM modulator and using a novel IDFT/IFFT and polyphase filter bank architecture to provide a more computationally efficient and high density multi-channel QAM modulator. The implementations of the improved multi-channel QAM modulator modulate QAM symbol streams onto respective carrier signals where the frequency of each carrier signal is an integer multiple of a fraction of the input sample rate of the respective QAM symbol stream. The modulated carriers are then combined using a novel IDFT/IFFT and polyphase filter bank architecture.

摘要翻译： 提供了用于增加多通道QAM调制器的频率分辨率和使用新颖的IDFT / IFFT和多相滤波器组架构来提供更高计算效率和高密度多通道QAM调制器的方法和装置。 改进的多信道QAM调制器的实施方式将QAM符号流调制到相应载波信号上，其中每个载波信号的频率是相应QAM符号流的输入采样速率的一部分的整数倍。 然后使用新颖的IDFT / IFFT和多相滤波器组架构来组合调制的载波。

公开(公告)号：US08140017B2

公开(公告)日：2012-03-20

申请号：US12241019

申请日：2008-09-29

申请人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

发明人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

IPC分类号： H04B17/00

CPC分类号： H04B17/318

摘要： A cognitive radio wireless device (114) dynamically manages signal detection in a cognitive radio system (100). Spectrum sensing is performed for a first sensing frame on at least one communication channel. At least one observed signal is received (204) on the at least one communication channel. A detection decision (210) is performed to determine if the observed signal is noise or an active signal associated with an active user. The detection decision (210) is performed by comparing observed signal energy estimation with a current detection threshold. The current detection threshold can be an arbitrarily defined threshold or a detection threshold based on a previous detection decision for a sensing frame immediately prior to the first sensing frame.

摘要翻译： 认知无线电无线设备（114）动态地管理认知无线电系统（100）中的信号检测。 对至少一个通信信道上的第一感测帧执行频谱感测。 在至少一个通信信道上接收至少一个观察信号（204）。 执行检测决定（210）以确定观察到的信号是否是噪声或与活动用户相关联的活动信号。 通过将观测信号能量估计与电流检测阈值进行比较来执行检测决定（210）。 根据紧接在第一感测帧之前的感测帧的先前检测判定，当前检测阈值可以是任意定义的阈值或检测阈值。

公开(公告)号：US06667708B2

公开(公告)日：2003-12-23

申请号：US10034554

申请日：2001-12-28

申请人： Anthony Schooler ,  David P. Gurney ,  Yun Kim ,  William John Rinderknecht ,  Zhuan Ye ,  Benson Chau

发明人： Anthony Schooler ,  David P. Gurney ,  Yun Kim ,  William John Rinderknecht ,  Zhuan Ye ,  Benson Chau

IPC分类号： A04L1528

CPC分类号： H04J13/102 ,  H04B1/70756 ,  H04J13/0044 ,  H04J13/0048

摘要： The invention provides a method for generating a code sequence. A code-generation instruction is received from memory. One or more control signals are determined based on the code-generation instruction. A code sequence is generated based on the control signals, a current state input, and a mask input.

摘要翻译： 本发明提供了一种用于生成代码序列的方法。 从存储器接收代码生成指令。 基于代码生成指令确定一个或多个控制信号。 基于控制信号，当前状态输入和掩码输入生成代码序列。

公开(公告)号：US08648738B1

公开(公告)日：2014-02-11

申请号：US13524473

申请日：2012-06-15

申请人： Zhuan Ye ,  Colman Cheung

发明人： Zhuan Ye ,  Colman Cheung

IPC分类号： H03M7/00

CPC分类号： H03M7/00 ,  H03H17/0685

摘要： One embodiment relates to an apparatus for sample rate conversion. A sample rate converter is arranged to receive an input signal at an input sampling frequency and use an interpolation interval to convert the input signal to an output signal at an output sampling frequency. A rate controller is arranged to alternate between different frequency control words for use in generating the interpolation interval signal. Another embodiment relates to a method of sample rate conversion. Another embodiment relates to a rate controller circuit. Other embodiments, aspects, and features are also disclosed.

摘要翻译： 一个实施例涉及用于采样率转换的装置。 采样率转换器被布置为以输入采样频率接收输入信号，并且使用内插间隔将输入信号转换为输出采样频率的输出信号。 速率控制器被布置为在不同的频率控制字之间交替用于生成内插间隔信号。 另一实施例涉及采样率转换的方法。 另一实施例涉及速率控制器电路。 还公开了其它实施例，方面和特征。

公开(公告)号：US06920470B2

公开(公告)日：2005-07-19

申请号：US09803349

申请日：2001-03-08

申请人： Joel Page ,  Trenton John Grale ,  Zhuan Ye ,  Erng Sing Wee ,  Sumant Sathe ,  Sijiam Chen

发明人： Joel Page ,  Trenton John Grale ,  Zhuan Ye ,  Erng Sing Wee ,  Sumant Sathe ,  Sijiam Chen

IPC分类号： G06F17/17 ,  H03H17/02 ,  G06F17/10

CPC分类号： G06F17/17 ,  H03H17/02

摘要： A low power programmable digital filter integrated circuit architecture has a programmable front end servicing up to 4 digital sources. Changing the programming of the front end permits digital outputs from different sensor types to be accommodated. Digital filtering is accomplished using a digital signal processor that is programmable to accommodate different decimation ratios. A serial data output register receives the filtered digital signals and provides them to an output port. The digital filter integrated circuit may be connected in a token passing configuration with other digital filter integrated circuits to increase the number of sources accommodated.

摘要翻译： 低功耗可编程数字滤波器集成电路架构具有可编程前端，最多可支持4个数字源。 改变前端的编程可以容纳来自不同传感器类型的数字输出。 使用可编程以适应不同抽取比率的数字信号处理器实现数字滤波。 串行数据输出寄存器接收经滤波的数字信号并将其提供给输出端口。 数字滤波器集成电路可以以令牌通过配置与其它数字滤波器集成电路连接，以增加容纳的源数量。