公开(公告)号：US20070230624A1

公开(公告)日：2007-10-04

申请号：US11729843

申请日：2007-03-30

申请人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta

发明人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta

IPC分类号： H04L27/00 ,  H03D3/00

CPC分类号： H04L27/2334 ,  H04L27/0008 ,  H04L27/063 ,  H04L27/08 ,  H04L27/2331

摘要： A demodulation circuit and method are provided. The demodulation circuit includes a transformation circuit which is configured to transform the received signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and a processing circuit which is configured to process the modified signal representation to demodulate the received signal based on the uniform representation. The method includes transforming the signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and processing the modified signal representation to demodulate the signal based on the uniform representation.

摘要翻译： 提供了解调电路和方法。 解调电路包括变换电路，其被配置为将接收到的信号变换为修改的信号表示，其中将幅度变化信息和频率变化信息都转换为均匀表示; 以及处理电路，被配置为处理所述修改的信号表示以基于所述均匀表示来解调所接收的信号。 该方法包括将信号变换成修改的信号表示，其中幅度变化信息和频率变化信息均被转换为均匀表示; 以及处理所述修改的信号表示以基于所述均匀表示来解调所述信号。

公开(公告)号：US07482862B2

公开(公告)日：2009-01-27

申请号：US11729843

申请日：2007-03-30

申请人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta

发明人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta

IPC分类号： H03D1/00 ,  H03D3/00 ,  H04L27/14

CPC分类号： H04L27/2334 ,  H04L27/0008 ,  H04L27/063 ,  H04L27/08 ,  H04L27/2331

摘要： A demodulation circuit and method are provided. The demodulation circuit includes a transformation circuit which is configured to transform the received signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and a processing circuit which is configured to process the modified signal representation to demodulate the received signal based on the uniform representation. The method includes transforming the signal into a modified signal representation in which both amplitude-varying information and frequency-varying information are converted to a uniform representation; and processing the modified signal representation to demodulate the signal based on the uniform representation.

摘要翻译： 提供了解调电路和方法。 解调电路包括变换电路，其被配置为将接收到的信号变换为修改的信号表示，其中将幅度变化信息和频率变化信息都转换为均匀表示; 以及处理电路，被配置为处理所述修改的信号表示以基于所述均匀表示来解调所接收的信号。 该方法包括将信号变换成修改的信号表示，其中幅度变化信息和频率变化信息均被转换为均匀表示; 以及处理所述修改的信号表示以基于所述均匀表示来解调所述信号。

公开(公告)号：US07817756B2

公开(公告)日：2010-10-19

申请号：US11723675

申请日：2007-03-21

申请人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

发明人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

IPC分类号： H04B1/10

CPC分类号： H04B1/123 ,  H03H17/0294 ,  H03H17/06 ,  H03H2017/0247 ,  H03H2021/007 ,  H03H2021/0074 ,  H03H2218/04 ,  H04L27/06 ,  H04L27/14

摘要： A circuit and method for suppressing interference components in a received signal are provided. The circuit includes an adaptive filter configured to process a first quantity of digital signal samples per unit time when the adaptive filter is operating in a first mode, and a second quantity of digital signal samples per unit time when operating in a second mode, wherein the first quantity is less than the second quantity. The method includes implementing an adaptive filter configured to operate in an adaptive mode and in a second mode having a reduced adaptability compared to the adaptive mode; operating the adaptive filter in the adaptive mode to process a first quantity of digital signal samples per unit time; and operating the adaptive filter in the second mode to process a second quantity of digital signal samples per unit time; wherein the first quantity is less than the second quantity.

摘要翻译： 提供一种用于抑制接收信号中的干扰成分的电路和方法。 该电路包括自适应滤波器，其被配置为当自适应滤波器以第一模式操作时处理每单位时间的第一数量的数字信号样本，以及当以第二模式操作时，每单位时间的第二数量的数字信号样本，其中 第一数量小于第二数量。 该方法包括实现自适应滤波器，其被配置为以与自适应模式相比具有降低的适应性的自适应模式和第二模式操作; 在自适应模式下操作自适应滤波器以处理每单位时间的第一数量的数字信号样本; 以及在所述第二模式中操作所述自适应滤波器以处理每单位时间的第二数量的数字信号样本; 其中所述第一数量小于所述第二数量。

公开(公告)号：US20080013657A1

公开(公告)日：2008-01-17

申请号：US11723675

申请日：2007-03-21

申请人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

发明人： Tarik Aouine ,  Frederic Coutant ,  Michel Gaeta ,  Abderrahman Essebbar ,  Luc Haumonte

IPC分类号： H04B1/10 ,  H03D1/24

CPC分类号： H04B1/123 ,  H03H17/0294 ,  H03H17/06 ,  H03H2017/0247 ,  H03H2021/007 ,  H03H2021/0074 ,  H03H2218/04 ,  H04L27/06 ,  H04L27/14

摘要： A circuit and method for suppressing interference components in a received signal are provided. The circuit includes an adaptive filter configured to process a first quantity of digital signal samples per unit time when the adaptive filter is operating in a first mode, and a second quantity of digital signal samples per unit time when operating in a second mode, wherein the first quantity is less than the second quantity. The method includes implementing an adaptive filter configured to operate in an adaptive mode and in a second mode having a reduced adaptability compared to the adaptive mode; operating the adaptive filter in the adaptive mode to process a first quantity of digital signal samples per unit time; and operating the adaptive filter in the second mode to process a second quantity of digital signal samples per unit time; wherein the first quantity is less than the second quantity.

摘要翻译： 提供一种用于抑制接收信号中的干扰成分的电路和方法。 该电路包括自适应滤波器，其被配置为当自适应滤波器以第一模式操作时处理每单位时间的第一数量的数字信号样本，以及当以第二模式操作时，每单位时间的第二数量的数字信号样本，其中 第一数量小于第二数量。 该方法包括实现自适应滤波器，其被配置为以与自适应模式相比具有降低的适应性的自适应模式和第二模式操作; 在自适应模式下操作自适应滤波器以处理每单位时间的第一数量的数字信号样本; 以及在所述第二模式中操作所述自适应滤波器以处理每单位时间的第二数量的数字信号样本; 其中所述第一数量小于所述第二数量。

公开(公告)号：US08155242B2

公开(公告)日：2012-04-10

申请号：US12270416

申请日：2008-11-13

申请人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

发明人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

IPC分类号： H03D3/00

CPC分类号： H04B1/123 ,  H04L27/14

摘要： A frequency shift keying digital signal receiving apparatus includes a detecting portion detecting a new signal on the basis of a signal, from which a correlated ambient noise is filtered out by an adaptive filter, a holding portion holding a first electric power for the signal received before a new signal is detected, a calculating portion calculating a second electric power for the signal received after the new signal is detected, a comparing portion comparing levels of the first and second electric powers, a selector selecting the signal, from which the correlated ambient noise is filtered out, when the first electric power is higher than the second electric power and selecting the signal bypassing the adaptive filter when the first electric power is lower than the second electric power, and a demodulating portion demodulating a desired signal on the basis of the signal selected by the selecting portion.

摘要翻译： 频移键控数字信号接收装置包括：检测部，其基于由自适应滤波器滤除相关的环境噪声的信号，检测新信号;保持部，其对于接收到的信号之前保持第一电力 检测到新的信号，计算部分，对于检测到新信号之后接收到的信号计算第二电力，比较部分，比较第一和第二电力的电平;选择器，选择信号，相关环境噪声 被滤出，当第一电力高于第二电力时，并且当第一电力低于第二电力时选择旁路自适应滤波器的信号，以及解调部分，基于 信号由选择部分选择。

公开(公告)号：US08050364B2

公开(公告)日：2011-11-01

申请号：US12270453

申请日：2008-11-13

申请人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

发明人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

IPC分类号： H04L27/06

CPC分类号： H04B1/123

摘要： A digital signal receiving apparatus includes: detection-judging portion judging a possible presence of a desired signal when a signal level of a smoothed signal is greater than a reference level; wherein said first smoothed signal and said second smoothed signal are compared in order to generate a detection signal representing a judgment of a possible presence of a desired signal, said second smoothed signal having a convergence speed slower than that of the first smoothing filter, a filter controlling portion switching an adaptive filter from an adaptive mode to a non-adaptive mode when the detection-judging portion judges the possible presence of the desired signal and switching from the non-adaptive mode to the adaptive mode when the detection-judging portion judges the absence of the desired signal; a limiting portion limiting a signal level of an auto-correlation signal to the signal level of the smoothed signal; and a demodulating portion demodulating the auto-correlation signal having the signal level limited by the limiting means so as to generate a demodulated signal, wherein the input to the demodulator is limited to the level of a smoothed signal, said smoothed signal being generated from the input of the detection judging portion.

摘要翻译： 数字信号接收装置包括：检测判断部分，当平滑信号的信号电平大于参考电平时，判断可能存在的期望信号; 其中所述第一平滑信号和所述第二平滑信号被比较以产生表示对所需信号的可能存在的判断的检测信号，所述第二平滑信号的收敛速度比第一平滑滤波器的收敛速度慢;滤波器 当检测判断部分判断出所需信号的可能存在并且从非自适应模式切换到自适应模式时，控制部分将自适应滤波器从自适应模式切换到非自适应模式 没有所需信号; 限制部分，将自相关信号的信号电平限制到平滑信号的信号电平; 以及解调部分，对具有由限制装置限制的信号电平的自相关信号进行解调，以产生解调信号，其中将解调器的输入限制为平滑信号的电平，所述平滑信号从 检测判断部分的输入。

公开(公告)号：US20090129523A1

公开(公告)日：2009-05-21

申请号：US12270394

申请日：2008-11-13

申请人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

发明人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

IPC分类号： H04B1/10

CPC分类号： H04B1/123

摘要： A digital signal receiving apparatus includes a detection-judging portion having a first smoothing filter generating a first smoothed signal by smoothing an auto-correlation signal and judging a possible presence of a desired signal when a signal level of the first smoothed signal is greater than a reference level and an absence of the desired signal when being smaller than the reference level. The smoothing filter includes a limiting portion limiting a fluctuation width of the first smoothed signal; and an adjusting portion configured to adjust the fluctuation width of the first smoothed signal limited by the limiting portion to be reduced while an elapsing time after the detection-judging means judges the possible presence of the desired signal is increasing.

摘要翻译： 一种数字信号接收装置，包括具有第一平滑滤波器的检测判断部分，该第一平滑滤波器通过平滑自相关信号产生第一平滑信号，并且当第一平滑信号的信号电平大于一个信号时判断期望信号的可能存在 参考电平和当小于参考电平时缺少所需信号。 平滑滤波器包括限制第一平滑信号的波动宽度的限制部分; 以及调整部，其被配置为在检测判断装置判断出所需信号的可能存在之后的经过时间时，调整受限制部分限制的第一平滑信号的波动宽度的减小。

公开(公告)号：US20090129520A1

公开(公告)日：2009-05-21

申请号：US12270453

申请日：2008-11-13

申请人： Tomohiro YAMAMOTO ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

发明人： Tomohiro YAMAMOTO ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

IPC分类号： H04B1/10

CPC分类号： H04B1/123

摘要： A digital signal receiving apparatus includes: detection-judging portion judging a possible presence of a desired signal when a signal level of a smoothed signal is greater than a reference level; wherein said first smoothed signal and said second smoothed signal are compared in order to generate a detection signal representing a judgment of a possible presence of a desired signal, said second smoothed signal having a convergence speed slower than that of the first smoothing filter, a filter controlling portion switching an adaptive filter from an adaptive mode to a non-adaptive mode when the detection-judging portion judges the possible presence of the desired signal and switching from the non-adaptive mode to the adaptive mode when the detection-judging portion judges the absence of the desired signal; a limiting portion limiting a signal level of an auto-correlation signal to the signal level of the smoothed signal; and a demodulating portion demodulating the auto-correlation signal having the signal level limited by the limiting means so as to generate a demodulated signal, wherein the input to the demodulator is limited to the level of a smoothed signal, said smoothed signal being generated from the input of the detection judging portion.

摘要翻译： 数字信号接收装置包括：检测判断部分，当平滑信号的信号电平大于参考电平时，判断可能存在的期望信号; 其中所述第一平滑信号和所述第二平滑信号被比较以产生表示对所需信号的可能存在的判断的检测信号，所述第二平滑信号的收敛速度比第一平滑滤波器的收敛速度慢;滤波器 当检测判断部分判断出所需信号的可能存在并且从非自适应模式切换到自适应模式时，控制部分将自适应滤波器从自适应模式切换到非自适应模式 没有所需信号; 限制部分，将自相关信号的信号电平限制到平滑信号的信号电平; 以及解调部分，对具有由限制装置限制的信号电平的自相关信号进行解调，以产生解调信号，其中将解调器的输入限制为平滑信号的电平，所述平滑信号从 检测判断部分的输入。

公开(公告)号：US08050370B2

公开(公告)日：2011-11-01

申请号：US12270394

申请日：2008-11-13

申请人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

发明人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

IPC分类号： H04B1/10

CPC分类号： H04B1/123

摘要： A digital signal receiving apparatus includes a detection-judging portion having a first smoothing filter generating a first smoothed signal by smoothing an auto-correlation signal and judging a possible presence of a desired signal when a signal level of the first smoothed signal is greater than a reference level and an absence of the desired signal when being smaller than the reference level. The smoothing filter includes a limiting portion limiting a fluctuation width of the first smoothed signal; and an adjusting portion configured to adjust the fluctuation width of the first smoothed signal limited by the limiting portion to be reduced while an elapsing time after the detection-judging means judges the possible presence of the desired signal is increasing.

摘要翻译： 一种数字信号接收装置，包括具有第一平滑滤波器的检测判断部分，该第一平滑滤波器通过平滑自相关信号产生第一平滑信号，并且当第一平滑信号的信号电平大于一个信号时判断期望信号的可能存在 参考电平和当小于参考电平时缺少所需信号。 平滑滤波器包括限制第一平滑信号的波动宽度的限制部分; 以及调整部，其被配置为在检测判断装置判断出所需信号的可能存在之后的经过时间时，调整受限制部分限制的第一平滑信号的波动宽度的减小。

公开(公告)号：US20090129510A1

公开(公告)日：2009-05-21

申请号：US12270416

申请日：2008-11-13

申请人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

发明人： Tomohiro Yamamoto ,  Akira Furuhashi ,  Takahiro Horie ,  Yuichi Murakami ,  Kazunori Ono ,  Frederic Coutant ,  Tarik Aouine

IPC分类号： H04L27/14 ,  H04B1/10

CPC分类号： H04B1/123 ,  H04L27/14

摘要： A frequency shift keying digital signal receiving apparatus includes a detecting portion detecting a new signal on the basis of a signal, from which a correlated ambient noise is filtered out by an adaptive filter, a holding portion holding a first electric power for the signal received before a new signal is detected, a calculating portion calculating a second electric power for the signal received after the new signal is detected, a comparing portion comparing levels of the first and second electric powers, a selector selecting the signal, from which the correlated ambient noise is filtered out, when the first electric power is higher than the second electric power and selecting the signal bypassing the adaptive filter when the first electric power is lower than the second electric power, and a demodulating portion demodulating a desired signal on the basis of the signal selected by the selecting portion.

摘要翻译： 频移键控数字信号接收装置包括：检测部，其基于由自适应滤波器滤除相关的环境噪声的信号，检测新信号;保持部，其对于接收到的信号之前保持第一电力 检测到新的信号，计算部分，对于检测到新信号之后接收到的信号计算第二电力，比较部分，比较第一和第二电力的电平;选择器，选择信号，相关环境噪声 被滤出，当第一电力高于第二电力时，并且当第一电力低于第二电力时选择旁路自适应滤波器的信号，以及解调部分，基于 信号由选择部分选择。