公开(公告)号：WO0223755A3

公开(公告)日：2002-06-06

申请号：PCT/US0128825

申请日：2001-09-14

Applicant: INTEL CORP ,  DEISHER MICHAEL E

Inventor： DEISHER MICHAEL E

IPC: H04M9/08

CPC classification number: H04M9/082

Abstract: Real and imaginary components of the discrete Fourier transform (DTF) of the residual echo in an acoustic echo cancellation system are separately estimated using mapping functions derived without an assumption of statistical independence between separate components of a near-end microphone input signal. The residual echo estimator calculates the real and imaginary components using an approximation of the microphone input signal without the echo. A different approximation is used depending on whether the near-end talker and/or the far-end talker are talking.

Abstract translation: 声学回声消除系统中的残余回声的离散傅立叶变换（DTF）的实部和虚部分别使用在不考虑近端麦克风输入信号的独立分量之间的统计独立性的假设下导出的映射函数来单独估计。 残余回声估计器使用没有回声的麦克风输入信号的近似来计算实部和虚部分量。 取决于近端讲话者和/或远端讲话者是否正在讲话，使用不同的近似值。

公开(公告)号：DE112009002322T5

公开(公告)日：2012-02-09

申请号：DE112009002322

申请日：2009-12-04

Applicant: INTEL CORP

Inventor： DEISHER MICHAEL E ,  TINSLEY KEITH R

IPC: H04B1/10 ,  H04B15/02

Abstract: In einigen Ausführungsformen wird eine Phase zwischen einem periodischen Spreizsignal und einem effektiven Spreizsignal, das eine überlagernde Oberschwingung moduliert, bestimmt, eine Amplitude der überlagernden Oberschwingung wird geschätzt, und die überlagernde Oberschwingung wird aus einem empfangenen Signal ausgelöscht. Es werden noch weitere Ausführungsformen beschrieben und beansprucht.

公开(公告)号：BR0113897A

公开(公告)日：2004-08-24

申请号：BR0113897

申请日：2001-09-14

Applicant: INTEL CORP

Inventor： DEISHER MICHAEL E

IPC: H04M9/08

Abstract: Real and imaginary components of the discrete Fourier transform (DFT) of the residual echo in an acoustic echo cancellation system are separately estimated using mapping functions derived without an assumption of statistical independence between separate components of a near-end microphone input signal. The residual echo estimator calculates the real and imaginary components using an approximation of the microphone input signal without the echo. A different approximation is used depending on whether the near-end talker and/or the far-end talker are talking.

公开(公告)号：DE10196631T1

公开(公告)日：2003-07-10

申请号：DE10196631

申请日：2001-09-14

Applicant: INTEL CORP

Inventor： DEISHER MICHAEL E

IPC: H04M9/08 ,  H04B3/00

Abstract: Real and imaginary components of the discrete Fourier transform (DFT) of the residual echo in an acoustic echo cancellation system are separately estimated using mapping functions derived without an assumption of statistical independence between separate components of a near-end microphone input signal. The residual echo estimator calculates the real and imaginary components using an approximation of the microphone input signal without the echo. A different approximation is used depending on whether the near-end talker and/or the far-end talker are talking.

公开(公告)号：WO2012003269A3

公开(公告)日：2012-03-29

申请号：PCT/US2011042515

申请日：2011-06-30

Applicant: INTEL CORP ,  BELTMAN WILLEM M ,  ZANARTU MATIAS ,  RAYCHOWDHURY ARIJIT ,  RANGARAJAN ANAND P ,  DEISHER MICHAEL E

Inventor： BELTMAN WILLEM M ,  ZANARTU MATIAS ,  RAYCHOWDHURY ARIJIT ,  RANGARAJAN ANAND P ,  DEISHER MICHAEL E

IPC: G10L19/14 ,  G10L15/28

CPC classification number: G10L15/20 ,  G10L21/0224 ,  G10L21/0232 ,  G10L21/0264 ,  G10L25/03 ,  G10L25/93

Abstract: A speech processing engine is provided that in some embodiments, employs Kalman filtering with a particular speaker's glottal information to clean up an audio speech signal for more efficient automatic speech recognition.

Abstract translation: 提供语音处理引擎，在一些实施例中，使用具有特定扬声器的声门信息的卡尔曼滤波来清理音频语音信号以实现更有效的自动语音识别。

公开(公告)号：WO2010080265A2

公开(公告)日：2010-07-15

申请号：PCT/US2009066744

申请日：2009-12-04

Applicant: INTEL CORP ,  DEISHER MICHAEL E ,  TINSLEY KEITH R

Inventor： DEISHER MICHAEL E ,  TINSLEY KEITH R

IPC: H04B1/10 ,  H04B15/02

CPC classification number: H04B1/7097

Abstract: In some embodiments a phase between a periodic spreading signal and an effective spreading signal modulating an interfering harmonic is determined, an amplitude of the interfering harmonic is estimated, and the interfering harmonic is canceled from a received signal. Other embodiments are described and claimed.

Abstract translation: 在一些实施例中，确定周期性扩频信号和调制干扰谐波的有效扩频信号之间的相位，估计干扰性谐波的幅度，并且从接收信号中消除干扰谐波。 描述并要求保护其他实施例。

公开(公告)号：GB2381698B

公开(公告)日：2004-03-10

申请号：GB0305204

申请日：2001-09-14

Applicant: INTEL CORP

Inventor： DEISHER MICHAEL E

IPC: H04M9/08

Abstract: Real and imaginary components of the discrete Fourier transform (DFT) of the residual echo in an acoustic echo cancellation system are separately estimated using mapping functions derived without an assumption of statistical independence between separate components of a near-end microphone input signal. The residual echo estimator calculates the real and imaginary components using an approximation of the microphone input signal without the echo. A different approximation is used depending on whether the near-end talker and/or the far-end talker are talking.

公开(公告)号：AU9095701A

公开(公告)日：2002-03-26

申请号：AU9095701

申请日：2001-09-14

Applicant: INTEL CORP

Inventor： DEISHER MICHAEL E

IPC: H04M9/08 ,  H04B3/00

Abstract: Real and imaginary components of the discrete Fourier transform (DFT) of the residual echo in an acoustic echo cancellation system are separately estimated using mapping functions derived without an assumption of statistical independence between separate components of a near-end microphone input signal. The residual echo estimator calculates the real and imaginary components using an approximation of the microphone input signal without the echo. A different approximation is used depending on whether the near-end talker and/or the far-end talker are talking.

公开(公告)号：EP2589047A4

公开(公告)日：2015-11-25

申请号：EP11801384

申请日：2011-06-30

Applicant: INTEL CORP

Inventor： BELTMAN WILLEM M ,  ZANARTU MATIAS ,  RAYCHOWDHURY ARIJIT ,  RANGARAJAN ANAND P ,  DEISHER MICHAEL E

IPC: G10L15/28

CPC classification number: G10L15/20 ,  G10L21/0224 ,  G10L21/0232 ,  G10L21/0264 ,  G10L25/03 ,  G10L25/93

公开(公告)号：EP2788979A4

公开(公告)日：2015-07-22

申请号：EP11876968

申请日：2011-12-06

Applicant: INTEL CORP

Inventor： RAYCHOWDHURY ARIJIT ,  BELTMAN WILLEM M ,  TSCHANZ JAMES W ,  TOKUNAGA CARLOS ,  DEISHER MICHAEL E ,  WALSH THOMAS E

IPC: G10L25/18 ,  G06F1/32 ,  G06F17/14 ,  G10L15/22 ,  G10L15/28 ,  G10L21/0232 ,  G10L25/84

CPC classification number: G10L15/20 ,  G06F1/3234 ,  G06F17/142 ,  G10L15/22 ,  G10L15/285 ,  G10L21/0208 ,  G10L21/0232 ,  G10L25/18 ,  G10L25/84 ,  G10L2015/223 ,  G10L2021/02087

Abstract: Methods of enabling voice processing with minimal power consumption includes recording time-domain audio signal at a first clock frequency and a first voltage, and performing Fast Fourier Transform (FFT) operations on the time-domain audio signal at a second clock frequency to generate frequency-domain audio signal. The frequency domain audio signal may be enhanced to obtain better signal to noise ratio, through one or multiple filtering and enhancing techniques. The enhanced audio signal may be used to generate the total signal energy and estimate the background noise energy. Decision logic may determine from the signal energy and the background noise, the presence or absence of the human voice. The first clock frequency may be different from the second clock frequency.