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189 条记录 (耗时 0.026 秒)

    Symbol tracking for AM in-band on-channel radio receivers
    1.
    发明授权
    Symbol tracking for AM in-band on-channel radio receivers 有权
    AM带内在线无线电接收机的符号跟踪

    公开(公告)号：US07733983B2

    公开(公告)日：2010-06-08

    申请号：US11273099

    申请日：2005-11-14

    申请人： Brian William Kroeger ,  Kun Wang

    发明人： Brian William Kroeger ,  Kun Wang

    IPC分类号： H03D1/24 ,  H04L7/00

    CPC分类号： H04L27/2662 ,  H04H20/36

    摘要： A method for symbol tracking in AM in-band on-channel radio receivers comprises the steps of: receiving a stream of time domain samples; assembling a set of the time domain samples equal to a symbol time plus a half symbol delay in response to a symbol timing adjustment value for each symbol period; interpolating the time domain samples; partitioning the interpolated time domain samples into a first group of samples representing half-off symbols and a second group of samples representing on-time symbols; processing the first and second groups of samples to produce the symbol timing adjustment value; and outputting the second group of samples representing on-time symbols at a symbol rate. An apparatus that performs the method is also included.

    摘要翻译： 一种用于AM带内在线无线电接收机中的符号跟踪的方法包括以下步骤：接收时域样本流; 响应于每个符号周期的符号定时调整值，组合一组等于符号时间加上半符号延迟的时域样本; 内插时域样本; 将内插时域样本划分为表示半时间符号的第一组样本和表示准时间符号的第二组采样; 处理第一和第二组样本以产生符号定时调整值; 并以符号率输出表示准时间符号的第二组采样。 还包括执行该方法的装置。

    Carrier tracking for AM in-band on-channel radio receivers
    2.
    发明授权
    Carrier tracking for AM in-band on-channel radio receivers 有权
    AM带内在线无线电接收机的载波跟踪

    公开(公告)号：US07706474B2

    公开(公告)日：2010-04-27

    申请号：US11273396

    申请日：2005-11-14

    申请人： Brian William Kroeger ,  Kun Wang

    发明人： Brian William Kroeger ,  Kun Wang

    IPC分类号： H03D1/24 ,  H04L27/08

    CPC分类号： H04L27/0014 ,  H04H2201/186 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0069

    摘要： A method for carrier tracking in AM in-band on-channel radio receivers comprises the steps of receiving an input signal, generating a local oscillator signal in response to an oscillator control signal, mixing the input signal with a local oscillator signal to produce a first signal, filtering the first signal to produce a filtered first signal at a decimated sample rate, detecting the phase error and frequency error of the filtered first signal normalized to mitigate effects of signal fades, and using an adaptive loop filter to produce the oscillator control signal in response to the phase error and frequency error of the filtered first signal. An apparatus that performs the method is also provided.

    摘要翻译： 一种用于AM带内在线无线电接收机中的载波跟踪的方法包括以下步骤：接收输入信号，响应于振荡器控制信号产生本地振荡器信号，将输入信号与本地振荡器信号混合以产生第一 信号，对第一信号进行滤波，以抽取采样率产生滤波后的第一信号，检测被滤波后的第一信号的相位误差和频率误差，以便减轻信号衰落的影响，并使用自适应环路滤波器产生振荡器控制信号 响应于滤波的第一信号的相位误差和频率误差。 还提供了执行该方法的装置。

    Equalizer for AM in-band on-channel radio receivers
    3.
    发明授权
    Equalizer for AM in-band on-channel radio receivers 有权
    用于AM带内在线无线电接收机的均衡器

    公开(公告)号：US07697620B2

    公开(公告)日：2010-04-13

    申请号：US11272978

    申请日：2005-11-14

    申请人： Brian William Kroeger ,  Kun Wang

    发明人： Brian William Kroeger ,  Kun Wang

    IPC分类号： H04K1/10 ,  H04L27/28

    CPC分类号： H04L27/01 ,  H04H20/30 ,  H04H40/18 ,  H04L5/023 ,  H04L25/03159 ,  H04L27/2601 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03439

    摘要： A method is provided for equalizing OFDM symbol vectors received on AM in-band on-channel radio signal including a main carrier and first and second BPSK modulated subcarriers. The method comprises the steps of: computing a BPSK magnitude signal; filtering the BPSK magnitude signal; filtering complex samples received on the main carrier; using the filtered BPSK magnitude signal and the filtered complex samples received on the main carrier to compute a plurality of flat fade equalization coefficients; and multiplying the OFDM symbol vectors by the flat fade equalization coefficients. A receiver that includes an equalizer, which operates in accordance with the method is also provided.

    摘要翻译： 提供了一种用于均衡在包括主载波和第一和第二BPSK调制副载波的AM带通上信道无线电信号上接收的OFDM符号向量的方法。 该方法包括以下步骤：计算BPSK幅度信号; 滤波BPSK幅度信号; 对在主载波上接收的复杂样本进行滤波; 使用滤波的BPSK幅度信号和在主载波上接收的经滤波的复数样本来计算多个平坦衰落均衡系数; 并且将OFDM符号向量乘以平坦衰落均衡系数。 还提供了包括根据该方法操作的均衡器的接收器。

    Equalizer for AM In-Band On-Channel Radio Receivers
    4.
    发明申请
    Equalizer for AM In-Band On-Channel Radio Receivers 有权
    AM带内无线接收器的均衡器

    公开(公告)号：US20100215090A1

    公开(公告)日：2010-08-26

    申请号：US12710534

    申请日：2010-02-23

    申请人： Brian William Kroeger ,  Kun Wang

    发明人： Brian William Kroeger ,  Kun Wang

    IPC分类号： H04L27/01

    CPC分类号： H04L27/01 ,  H04H20/30 ,  H04H40/18 ,  H04L5/023 ,  H04L25/03159 ,  H04L27/2601 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03439

    摘要： A method is provided for equalizing OFDM symbol vectors received on AM in-band on-channel radio signal including a main carrier and first and second BPSK modulated subcarriers. The method comprises the steps of: computing a BPSK magnitude signal; filtering the BPSK magnitude signal; filtering complex samples received on the main carrier; using the filtered BPSK magnitude signal and the filtered complex samples received on the main carrier to compute a plurality of flat fade equalization coefficients; and multiplying the OFDM symbol vectors by the flat fade equalization coefficients. A receiver that includes an equalizer, which operates in accordance with the method is also provided.

    摘要翻译： 提供了一种用于均衡在包括主载波和第一和第二BPSK调制副载波的AM带通上信道无线电信号上接收的OFDM符号向量的方法。 该方法包括以下步骤：计算BPSK幅度信号; 滤波BPSK幅度信号; 过滤在主载波上接收的复杂样本; 使用滤波的BPSK幅度信号和在主载波上接收的经滤波的复数样本来计算多个平坦衰落均衡系数; 并且将OFDM符号向量乘以平坦衰落均衡系数。 还提供了包括根据该方法操作的均衡器的接收器。

    Equalizer for AM in-band on-channel radio receivers
    5.
    发明授权
    Equalizer for AM in-band on-channel radio receivers 有权
    用于AM带内在线无线电接收机的均衡器

    公开(公告)号：US08442170B2

    公开(公告)日：2013-05-14

    申请号：US12710534

    申请日：2010-02-23

    申请人： Brian William Kroeger ,  Kun Wang

    发明人： Brian William Kroeger ,  Kun Wang

    IPC分类号： H04B1/10 ,  H03H7/30

    CPC分类号： H04L27/01 ,  H04H20/30 ,  H04H40/18 ,  H04L5/023 ,  H04L25/03159 ,  H04L27/2601 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03439

    摘要： A method is provided for equalizing OFDM symbol vectors received on AM in-band on-channel radio signal including a main carrier and first and second BPSK modulated subcarriers. The method comprises the steps of: computing a BPSK magnitude signal; filtering the BPSK magnitude signal; filtering complex samples received on the main carrier; using the filtered BPSK magnitude signal and the filtered complex samples received on the main carrier to compute a plurality of flat fade equalization coefficients; and multiplying the OFDM symbol vectors by the flat fade equalization coefficients. A receiver that includes an equalizer, which operates in accordance with the method is also provided.

    摘要翻译： 提供了一种用于均衡在包括主载波和第一和第二BPSK调制副载波的AM带通上信道无线电信号上接收的OFDM符号向量的方法。 该方法包括以下步骤：计算BPSK幅度信号; 滤波BPSK幅度信号; 过滤在主载波上接收的复杂样本; 使用滤波的BPSK幅度信号和在主载波上接收的经滤波的复数样本来计算多个平坦衰落均衡系数; 并且将OFDM符号向量乘以平坦衰落均衡系数。 还提供了包括根据该方法操作的均衡器的接收器。

    Process for Producing Phenol
    8.
    发明申请
    Process for Producing Phenol 有权
    生产苯酚的方法

    公开(公告)号：US20150307427A1

    公开(公告)日：2015-10-29

    申请号：US14110859

    申请日：2011-12-15

    申请人： Kun Wang

    发明人： Kun Wang

    IPC分类号： C07C37/08 ,  C07C45/53 ,  C07C2/74 ,  C07C407/00

    CPC分类号： C07C37/08 ,  B01J29/06 ,  B01J29/08 ,  B01J29/082 ,  B01J29/084 ,  B01J37/30 ,  C07C2/74 ,  C07C37/86 ,  C07C39/04 ,  C07C45/53 ,  C07C49/403 ,  C07C407/00 ,  C07C409/16 ,  C07C2101/14 ,  C07C2601/14 ,  Y02P20/52 ,  C07C409/14 ,  C07C13/28

    摘要： In a process for producing phenol, cyclohexylbenzene is contacted with an oxygen-containing compound in the presence of an oxidation catalyst comprising a cyclic imide under oxidation conditions effective to produce a product comprising cyclohexylbenzene hydroperoxide and unreacted cyclic imide catalyst. Without removing all the unreacted cyclic imide catalyst, at least a portion of the product is contacted with an acidic molecular sieve under conditions effective to adsorb at least a portion of the unreacted cyclic imide and to convert at least part of the cyclohexylbenzene hydroperoxide in the product portion into phenol and cyclohexanone.

    摘要翻译： 在生产苯酚的方法中，在有效产生包含环己基苯氢过氧化物和未反应的环状酰亚胺催化剂的产物的氧化条件下，环己基苯在含有环状酰亚胺的氧化催化剂存在下与含氧化合物接触。 在不除去所有未反应的环状酰亚胺催化剂的情况下，至少一部分产物在有效吸附至少一部分未反应的环状酰亚胺的条件下与酸性分子筛接触，并将至少部分环己基苯氢过氧化物转化成产物 部分成苯酚和环己酮。

    Paper medium identifying device and identifying method
    9.
    发明授权
    Paper medium identifying device and identifying method 有权
    纸介质识别装置和识别方法

    公开(公告)号：US09122944B2

    公开(公告)日：2015-09-01

    申请号：US14233657

    申请日：2012-10-26

    申请人： Yuanchao Yu ,  Tiancai Liang ,  Dingxi Chen ,  Kun Wang

    发明人： Yuanchao Yu ,  Tiancai Liang ,  Dingxi Chen ,  Kun Wang

    IPC分类号： G06K9/00 ,  G06K9/18 ,  H04N1/387 ,  G07D7/20 ,  H04N1/409

    CPC分类号： G06K9/18 ,  G07D7/206 ,  G07D7/2075 ,  H04N1/387 ,  H04N1/4097

    摘要： A paper medium identifying device and an identifying method. The paper medium identifying device comprises an image data obtaining unit, a faulty wire detecting unit, an image dividing unit, a standard template data storage unit, a comprehensive analyzing unit, a new template generating unit and a judging unit. The paper medium identifying device divides the standard template into new sub-templates by dividing the template from a faulty wire position as margin, and then matches the sub-templates with a papery medium image which being identified so as to avoid the influence of faulty wires on the template match identification and improve the acceptance rate of the papery medium identifying device.

    摘要翻译： 纸介质识别装置和识别方法。 纸介质识别装置包括图像数据获取单元，故障线检测单元，图像分割单元，标准模板数据存储单元，综合分析单元，新模板生成单元和判断单元。 纸介质识别装置通过将模板与有缺陷的线位置划分为边距来将标准模板分成新的子模板，然后将子模板与被标识的纸质介质图像相匹配，以避免错误的线的影响 对模板匹配识别，提高纸质介质识别装置的验收率。