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    OPPORTUNISTIC 40 MHz MODE OF TRANSMISSION IN WIRELESS TRANSMITTERS
    4.
    发明申请
    OPPORTUNISTIC 40 MHz MODE OF TRANSMISSION IN WIRELESS TRANSMITTERS 有权
    机载40 MHz无线发射机传输模式

    公开(公告)号：US20080084835A1

    公开(公告)日：2008-04-10

    申请号：US11866754

    申请日：2007-10-03

    申请人： Sandesh Goel ,  Timothy Donovan ,  Ken Ho ,  Yungping Hsu ,  Kedar Shirali ,  Atul Salhotra ,  Tam Tran ,  Chia-Chun Chung

    发明人： Sandesh Goel ,  Timothy Donovan ,  Ken Ho ,  Yungping Hsu ,  Kedar Shirali ,  Atul Salhotra ,  Tam Tran ,  Chia-Chun Chung

    IPC分类号： H04B7/00 ,  H04Q7/20

    CPC分类号： H04W72/04 ,  H04W74/0808

    摘要： A system includes a signal processing module and a control module. The signal processing module receives a first clear channel assessment (CCA) signal for a first sub-channel of a communication channel, increases a pulse width of the first CCA signal by a predetermined period of time, and generates a second CCA signal. The control module receives the second CCA signal and a third CCA signal for a second sub-channel of the communication channel. The control module transmits data via one of the second sub-channel and the communication channel based on the second and third CCA signals.

    摘要翻译： 系统包括信号处理模块和控制模块。 信号处理模块接收通信信道的第一子信道的第一清除信道评估（CCA）信号，将第一CCA信号的脉冲宽度增加预定时间段，并产生第二CCA信号。 控制模块接收第二CCA信号和用于通信信道的第二子信道的第三CCA信号。 控制模块基于第二和第三CCA信号，经由第二子信道和通信信道中的一个发送数据。

    Adaptively determining a data rate of packetized information transmission over a wireless channel
    5.
    发明授权
    Adaptively determining a data rate of packetized information transmission over a wireless channel 有权
    通过无线信道自适应地确定分组信息传输的数据速率

    公开(公告)号：US08687510B1

    公开(公告)日：2014-04-01

    申请号：US12750531

    申请日：2010-03-30

    申请人： Kedar Shirali ,  Ravi Narasimhan ,  Yungping Hsu

    发明人： Kedar Shirali ,  Ravi Narasimhan ,  Yungping Hsu

    IPC分类号： G01R31/08

    CPC分类号： H04W28/0236 ,  H04L25/0206 ,  H04L25/0242 ,  H04W24/10 ,  H04W28/22

    摘要： Systems and techniques relating to processing a signal received over a wireless channel. A technique includes adaptively determining a data rate of packetized information transmission based on both a signal quality measure of a received signal and a channel quality measure derived from the received signal, the channel quality measure being indicative of frequency selectivity in the wireless channel. An apparatus includes a channel estimator configured to be responsive to a received OFDM signal corresponding to multiple frequency tones of the channel, and configured to evaluate channel response characteristics of the frequency tones; and a channel state indicator configured to generate a channel quality measure usable along with a signal quality measure in adaptively determining a data rate of packetized information transmission, wherein the channel quality measure is generated from the channel response characteristics of the frequency tones and is indicative of frequency selectivity in the wireless channel.

    摘要翻译： 与处理通过无线信道接收的信号有关的系统和技术。 一种技术包括基于接收信号的信号质量测量和从接收信号导出的信道质量度量自适应地确定分组化信息传输的数据速率，信道质量度量指示无线信道中的频率选择性。 一种装置包括：信道估计器，被配置为响应于与所述信道的多个频率音调相对应的接收的OFDM信号，并且被配置为评估所述频率音调的信道响应特性; 以及信道状态指示符，其被配置为生成可自适应地确定分组化信息传输的数据速率的信号质量度量可用的信道质量度量，其中，信道质量度量是根据频率音调的信道响应特性产生的，并且指示 频率选择性在无线信道。

    Adaptively determining a data rate of packetized information transmission over a wireless channel
    6.
    发明授权
    Adaptively determining a data rate of packetized information transmission over a wireless channel 有权
    通过无线信道自适应地确定分组信息传输的数据速率

    公开(公告)号：US07697449B1

    公开(公告)日：2010-04-13

    申请号：US10988318

    申请日：2004-11-12

    申请人： Kedar Shirali ,  Ravi Narasimhan ,  Yungping Hsu

    发明人： Kedar Shirali ,  Ravi Narasimhan ,  Yungping Hsu

    IPC分类号： G01R31/08

    CPC分类号： H04W28/0236 ,  H04L25/0206 ,  H04L25/0242 ,  H04W24/10 ,  H04W28/22

    摘要： Systems and techniques relating to processing a signal received over a wireless channel. A technique includes adaptively determining a data rate of packetized information transmission based on both a signal quality measure of a received signal and a channel quality measure derived from the received signal, the channel quality measure being indicative of frequency selectivity in the wireless channel. An apparatus includes a channel estimator configured to be responsive to a received OFDM signal corresponding to multiple frequency tones of the channel, and configured to evaluate channel response characteristics of the frequency tones; and a channel state indicator configured to generate a channel quality measure usable along with a signal quality measure in adaptively determining a data rate of packetized information transmission, wherein the channel quality measure is generated from the channel response characteristics of the frequency tones and is indicative of frequency selectivity in the wireless channel.

    摘要翻译： 与处理通过无线信道接收的信号有关的系统和技术。 一种技术包括基于接收信号的信号质量测量和从接收信号导出的信道质量度量自适应地确定分组化信息传输的数据速率，信道质量度量指示无线信道中的频率选择性。 一种装置包括：信道估计器，被配置为响应于与所述信道的多个频率音调相对应的接收的OFDM信号，并且被配置为评估所述频率音调的信道响应特性; 以及信道状态指示符，其被配置为生成可自适应地确定分组化信息传输的数据速率的信号质量度量可用的信道质量度量，其中，信道质量度量是根据频率音调的信道响应特性产生的，并且指示 频率选择性在无线信道。

    ADC architecture for wireless applications
    7.
    发明授权
    ADC architecture for wireless applications 有权
    用于无线应用的ADC架构

    公开(公告)号：US08031810B1

    公开(公告)日：2011-10-04

    申请号：US12945035

    申请日：2010-11-12

    申请人： Yungping Hsu ,  Mao Yu

    发明人： Yungping Hsu ,  Mao Yu

    IPC分类号： H03K9/00 ,  H03M1/00

    CPC分类号： H03M1/1225 ,  H04L27/38

    摘要： An architecture for use in wireless receiver applications, particularly for ADC conversion of received in-phase I and quadrature Q signals. A single ADC is shared to convert both signals, and the ADC input is alternately switched between the i and q signals. In an embodiment, the ADC is clocked at an increased sample rate, and the digital output signals are aligned to compensate for the phase difference resulting from the implementation of the single ADC.

    摘要翻译： 一种用于无线接收机应用的架构，特别是用于接收同相I和正交Q信号的ADC转换。 共享一个ADC以转换两个信号，并且ADC输入在i和q信号之间交替切换。 在一个实施例中，ADC以提高的采样率被计时，并且数字输出信号被对准以补偿由单个ADC的实现引起的相位差。

    Digitally-assisted power reduction technique for IQ pipeline ADCs used in wireless receivers
    8.
    发明授权
    Digitally-assisted power reduction technique for IQ pipeline ADCs used in wireless receivers 有权
    用于无线接收器的IQ流水线ADC的数字辅助功率降低技术

    公开(公告)号：US07822160B1

    公开(公告)日：2010-10-26

    申请号：US11504523

    申请日：2006-08-15

    申请人： Thomas Cho ,  Yungping Hsu

    发明人： Thomas Cho ,  Yungping Hsu

    IPC分类号： H04L7/00

    CPC分类号： H03M1/1225 ,  H03M1/164 ,  H03M1/44

    摘要： A device comprises a first circuit that generates a first phase component and a second phase component. A pipelined analog to digital converter comprises N stages, wherein N is an integer greater than one. At least one of the N stages includes a sample and integrate circuit that selectively samples the first phase component and integrates a sampled second phase component to generate an integrated second phase component during one portion of a first clock phase of the sample and integrate circuit, and that selectively integrates the sampled first phase component to generate an integrated first phase component and samples the second phase component to generate the sampled second phase component during another portion of the first clock phase of the sample and integrate circuit.

    摘要翻译： 一种设备包括产生第一相位分量和第二相位分量的第一电路。 流水线模数转换器包括N级，其中N是大于1的整数。 N级中的至少一个包括采样和积分电路，其选择性地采样第一相位分量并且对样本和积分电路的第一时钟相位的一部分期间积分采样的第二相位分量以产生积分的第二相位分量，以及 选择性地将采样的第一相位分量积分以产生积分的第一相位分量，并且在采样和积分电路的第一时钟相位的另一部分期间采样第二相位分量以产生采样的第二相位分量。

    RADAR DETECTION AND DYNAMIC FREQUENCY SELECTION
    9.
    发明申请
    RADAR DETECTION AND DYNAMIC FREQUENCY SELECTION 审中-公开
    雷达检测和动态频率选择

    公开(公告)号：US20100202359A1

    公开(公告)日：2010-08-12

    申请号：US12761937

    申请日：2010-04-16

    申请人： Bhaskar V. Nallapureddy ,  Tsunglun Yu ,  Yungping Hsu ,  Sek Kin Neng

    发明人： Bhaskar V. Nallapureddy ,  Tsunglun Yu ,  Yungping Hsu ,  Sek Kin Neng

    IPC分类号： H04W40/00

    CPC分类号： G01S7/021 ,  G01S7/023

    摘要： A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.

    摘要翻译： 无线网络设备包括相关模块，自动增益控制模块和控制模块。 相关模块将射频（RF）信号的预定部分相关，并基于此产生相关信号。 自动增益控制（AGC）模块基于所述RF信号产生增益控制信号。 所述控制模块基于所述相关信号和所述增益控制信号选择性地确定所述RF信号是否为雷达信号。

    Decoding method and apparatus
    10.
    发明授权
    Decoding method and apparatus 有权
    解码方法和装置

    公开(公告)号：US07746925B1

    公开(公告)日：2010-06-29

    申请号：US11528037

    申请日：2006-09-27

    申请人： Yungping Hsu ,  Nelson Xu ,  Ricky Cheung

    发明人： Yungping Hsu ,  Nelson Xu ,  Ricky Cheung

    IPC分类号： H03H7/30 ,  H03K5/159

    CPC分类号： H04L25/03057 ,  H04L2025/03401 ,  H04L2025/0349

    摘要： A feedback equalizer includes a summing unit having an output and first input for receiving a modulated signal, which includes a symbol defined by a first number of chips. A subsymbol processor is coupled to the output of the summing unit. The symbol processor is capable of generating a subsymbol waveform upon receipt of a second number of chips of the symbol. The second number is less than the first number. A feedback filter is coupled to a second input of the summing unit and the symbol processing unit to selectively filter the subsymbol waveform from the modulated signal.

    摘要翻译： 反馈均衡器包括具有用于接收调制信号的输出和第一输入的求和单元，该调制信号包括由第一数量的码片定义的符号。 子符号处理器耦合到求和单元的输出。 符号处理器能够在接收到符号的第二数量的码片时产生子符号波形。 第二个数字小于第一个数字。 反馈滤波器耦合到求和单元和符号处理单元的第二输入端，以选择性地从调制信号滤波子符号波形。