公开(公告)号：US20140126743A1

公开(公告)日：2014-05-08

申请号：US13669369

申请日：2012-11-05

Applicant: Nicolas Petit ,  Gregory Burnett ,  Zhinian Jing

Inventor： Nicolas Petit ,  Gregory Burnett ,  Zhinian Jing

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/1083 ,  H04R29/006 ,  H04R2201/403 ,  H04R2410/01 ,  H04R2410/05 ,  H04R2410/07 ,  H04R2430/23

Abstract: Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter.

公开(公告)号：US08024166B2

公开(公告)日：2011-09-20

申请号：US12067523

申请日：2006-09-18

Applicant: Jonathan Chauvin ,  Gilles Corde ,  Nicolas Petit ,  Pierre Rouchon

Inventor： Jonathan Chauvin ,  Gilles Corde ,  Nicolas Petit ,  Pierre Rouchon

IPC: G06F9/455

CPC classification number: F02D41/0097 ,  F02D41/1402 ,  F02D41/1497 ,  F02D2041/1433 ,  F02D2041/288 ,  F02D2200/1004

Abstract: The invention is a method for real-time estimation of the instantaneous engine speed produced by each cylinder of an internal-combustion engine, from an instantaneous engine speed measurement at the end of the engine transmission system. A physical model, representing in real time the dynamics of the transmission system according to the crankshaft angle and to coefficients of a Fourier series decomposition of the instantaneous speed produced by each cylinder, is constructed. These coefficients are determined in real time from coupling between the model and an adaptive type non-linear estimator. The instantaneous speed produced by each cylinder is then deduced from these coefficients. The mean torque produced by each cylinder can also be deduced therefrom. An application is: engine controls.

Abstract translation: 本发明是一种用于实时估计内燃机的每个气缸产生的瞬时发动机转速的方法，该发动机转速由发动机变速系统结束时的瞬时发动机转速测量。 一种物理模型，实时表示根据曲轴角度的传动系统的动力学和由每个气缸产生的瞬时速度的傅立叶级数分解的系数。 这些系数是从模型和自适应型非线性估计器之间的耦合实时确定的。 然后从这些系数推导出每个气缸产生的瞬时速度。 每个气缸产生的平均扭矩也可以由此推断出。 一个应用是：引擎控制。

公开(公告)号：US20100280824A1

公开(公告)日：2010-11-04

申请号：US12772963

申请日：2010-05-03

Applicant: Nicolas Petit ,  Gregory Burnett ,  Michael Goertz

Inventor： Nicolas Petit ,  Gregory Burnett ,  Michael Goertz

IPC: G10L11/06

CPC classification number: H04R3/002 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R1/08 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/005 ,  H04R3/02 ,  H04R3/04 ,  H04R29/004 ,  H04R2410/07

Abstract: Systems and methods to reduce the negative impact of wind on an electronic system include use of a first detector that receives a first signal and a second detector that receives a second signal. A voice activity detector (VAD) coupled to the first detector generates a VAD signal when the first signal corresponds to voiced speech. A wind detector coupled to the second detector correlates signals received at the second detector and derives from the correlation wind metrics that characterize wind noise that is acoustic disturbance corresponding to at least one of air flow and air pressure in the second detector. The wind detector controls a configuration of the second detector according to the wind metrics. The wind detector uses the wind metrics to dynamically control mixing of the first signal and the second signal to generate an output signal for transmission.

Abstract translation: 减少风对电子系统的负面影响的系统和方法包括使用接收第一信号的第一检测器和接收第二信号的第二检测器。 当第一信号对应于有声语音时，耦合到第一检测器的语音活动检测器（VAD）产生VAD信号。 耦合到第二检测器的风检测器将在第二检测器处接收到的信号相关联，并且从表征第二检测器中的空气流和空气压力中的至少一个的声学干扰的风噪声的相关风度量导出。 风检测器根据风量度量控制第二检测器的配置。 风检测器使用风量度来动态地控制第一信号和第二信号的混合，以产生用于传输的输出信号。

公开(公告)号：US20100278352A1

公开(公告)日：2010-11-04

申请号：US12772975

申请日：2010-05-03

Applicant: Nicolas Petit ,  Gregory Burnett ,  Michael Goertz

Inventor： Nicolas Petit ,  Gregory Burnett ,  Michael Goertz

IPC: G10K11/16

CPC classification number: H04R3/002 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/005 ,  H04R3/02 ,  H04R3/04 ,  H04R2410/07

Abstract: Systems and methods to reduce the negative impact of wind on an electronic system include use of a first detector that receives a first signal and a second detector that receives a second signal. A voice activity detector (VAD) coupled to the first detector generates a VAD signal when the first signal corresponds to voiced speech. A wind detector coupled to the second detector correlates signals received at the second detector and derives from the correlation wind metrics that characterize wind noise that is acoustic disturbance corresponding to at least one of air flow and air pressure in the second detector. The wind detector controls a configuration of the second detector according to the wind metrics. The wind detector uses the wind metrics to dynamically control mixing of the first signal and the second signal to generate an output signal for transmission.

公开(公告)号：US20090187279A1

公开(公告)日：2009-07-23

申请号：US12303024

申请日：2007-05-29

Applicant: Michel Bernier ,  Nicolas Petit ,  Yann Creff ,  Mériam Chebre

Inventor： Michel Bernier ,  Nicolas Petit ,  Yann Creff ,  Mériam Chebre

IPC: G06F17/11 ,  G05B19/02 ,  G06F17/10

CPC classification number: G05D11/139 ,  Y10T137/87684

Abstract: The invention relates to a method and a device for controlling the production of a mixture of components, especially a mixture with premix dead volumes.The method and the device according to the invention ensure multivariable regulation feedback by a dynamic observer providing an estimate in real time of the properties of the components of the mixture, said estimate being sufficient to guarantee the effectiveness of the feedback loop. Thus, the desired properties of the mixture are guaranteed despite large uncertainties in the properties of the components on the one hand, and partial knowledge of the mixing process on the other.

Abstract translation: 本发明涉及用于控制组分混合物的生产的方法和装置，特别是具有预混物死体积的混合物。 根据本发明的方法和装置通过动态观察器确保多变量调节反馈，实时提供混合物的组分的性质的估计，所述估计足以保证反馈回路的有效性。 因此，尽管一方面组分的性质存在很大的不确定性，另一方面对混合过程的部分了解也保证了混合物的期望性质。

公开(公告)号：US08503686B2

公开(公告)日：2013-08-06

申请号：US12772947

申请日：2010-05-03

Applicant: Zhinian Jing ,  Nicolas Petit ,  Gregory Burnett

Inventor： Zhinian Jing ,  Nicolas Petit ,  Gregory Burnett

IPC: G10K11/16

CPC classification number: G10L25/84 ,  G10L21/0208 ,  G10L25/78 ,  G10L25/93 ,  G10L2021/02165 ,  G10L2025/783 ,  H04R1/1008 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2201/107

Abstract: A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.

Abstract translation: 语音活动检测器（VAD）根据主机设备操作的条件，组合使用声学VAD和振动传感器VAD。 VAD包括接收第一信号的第一检测器和接收第二信号的第二检测器。 VAD包括耦合到第一和第二检测器的第一VAD分量。 当由第一信号上的至少一次操作产生的能量超过第一阈值时，第一VAD分量确定第一信号对应于有声语音。 VAD包括耦合到第二检测器的第二VAD部件。 当与第二信号相对应的第二参数的比率和对应于第一信号的第一参数的比率超过第二阈值时，第二VAD分量确定第二信号对应于浊音。

公开(公告)号：US08418442B2

公开(公告)日：2013-04-16

申请号：US12832597

申请日：2010-07-08

Applicant: Olivier Lepreux ,  Yann Creff ,  Nicolas Petit

Inventor： Olivier Lepreux ,  Yann Creff ,  Nicolas Petit

IPC: F01N3/00 ,  F02B27/04

CPC classification number: F01N3/0253 ,  F01N9/002 ,  F01N2610/03 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1446 ,  F02D2041/1422 ,  Y02T10/47

Abstract: Method of controlling the active regeneration of a particulate filter through dynamic control of the temperature at the outlet of an oxidation catalyst.A control law is defined for a hydrocarbon flow rate at the oxidation catalyst inlet, by means of the ratio between a temperature demand and a gain. The gain can be corrected so as to take account of the transient phenomena that occur in the oxidation catalyst during a gas flow rate variation. The temperature demand can comprise a precompensation term to compensate for the effects of a temperature variation at the oxidation catalyst inlet. The temperature demand can comprise a feedback term calculated by a controller whose parameters are automatically calculated by means of a physical model of the catalyst, during operating conditions variations. Any combination of these terms allows to define a suitable control law. Finally, the hydrocarbon flow rate is modified by applying the control law so that the temperature of the gas leaving said catalyst respects a set point temperature.Application: engine control.

Abstract translation: 通过动态控制氧化催化剂出口处的温度来控制微粒过滤器的主动再生的方法。 通过温度需求和增益之间的比率，定义了氧化催化剂入口处烃流量的控制律。 可以校正增益，以便考虑在气体流量变化期间在氧化催化剂中发生的瞬态现象。 温度需求可以包括预补偿项以补偿氧化催化剂入口处的温度变化的影响。 温度需求可以包括由控制器计算的反馈项，该控制器的参数在操作条件变化期间通过催化剂的物理模型自动计算。 这些术语的任意组合允许定义合适的控制律。 最后，通过应用控制律修改碳氢化合物流速，使得离开所述催化剂的气体的温度达到设定点温度。 应用：发动机控制。

公开(公告)号：US08401703B2

公开(公告)日：2013-03-19

申请号：US12303024

申请日：2007-05-29

Applicant: Michel Bernier ,  Nicolas Petit ,  Yann Creff ,  Mériam Chebre

Inventor： Michel Bernier ,  Nicolas Petit ,  Yann Creff ,  Mériam Chebre

IPC: G05B13/00 ,  G05D11/13

CPC classification number: G05D11/139 ,  Y10T137/87684

Abstract: The invention relates to a method and a device for controlling the production of a mixture of components, especially a mixture with premix dead volumes.The method and the device according to the invention ensure multivariable regulation feedback by a dynamic observer providing an estimate in real time of the properties of the components of the mixture, said estimate being sufficient to guarantee the effectiveness of the feedback loop. Thus, the desired properties of the mixture are guaranteed despite large uncertainties in the properties of the components on the one hand, and partial knowledge of the mixing process on the other.

Abstract translation: 本发明涉及用于控制组分混合物的生产的方法和装置，特别是具有预混物死体积的混合物。 根据本发明的方法和装置通过动态观察器确保多变量调节反馈，实时提供混合物的组分的性质的估计，所述估计足以保证反馈回路的有效性。 因此，尽管一方面组分的性质存在很大的不确定性，另一方面对混合过程的部分了解也保证了混合物的期望性质。

公开(公告)号：US20110026722A1

公开(公告)日：2011-02-03

申请号：US12772947

申请日：2010-05-03

Applicant: Zhinian Jing ,  Nicolas Petit ,  Gregory Burnett

Inventor： Zhinian Jing ,  Nicolas Petit ,  Gregory Burnett

IPC: G10K11/16 ,  H04R3/00

CPC classification number: G10L25/84 ,  G10L21/0208 ,  G10L25/78 ,  G10L25/93 ,  G10L2021/02165 ,  G10L2025/783 ,  H04R1/1008 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2201/107

Abstract: A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.

Abstract translation: 语音活动检测器（VAD）根据主机设备操作的条件，组合使用声学VAD和振动传感器VAD。 VAD包括接收第一信号的第一检测器和接收第二信号的第二检测器。 VAD包括耦合到第一和第二检测器的第一VAD分量。 当由第一信号上的至少一次操作产生的能量超过第一阈值时，第一VAD分量确定第一信号对应于有声语音。 VAD包括耦合到第二检测器的第二VAD部件。 当与第二信号相对应的第二参数的比率和对应于第一信号的第一参数的比率超过第二阈值时，第二VAD分量确定第二信号对应于浊音。

公开(公告)号：US20090201892A1

公开(公告)日：2009-08-13

申请号：US12266309

申请日：2008-11-06

Applicant: Sebastien GUIRIEC ,  Nicolas PETIT ,  Patrick COMBES

Inventor： Sebastien GUIRIEC ,  Nicolas PETIT ,  Patrick COMBES

IPC: H04J3/00 ,  H04L12/66

CPC classification number: G10L19/18 ,  G10L19/012 ,  H04L1/20 ,  H04L1/201 ,  H04W76/28 ,  Y02D70/122 ,  Y02D70/124 ,  Y02D70/144 ,  Y02D70/24 ,  Y02D70/25

Abstract: A user equipment (UE) operating in a wireless network receives a sequence of speech frames on a speech channel. The UE demodulates at least a portion of a speech frame of the sequence of received speech frames to produce a metric value. The UE discontinues processing of the speech frame and enters a low power discontinuous reception (DRX) mode if the metric value indicates absence of valid speech data, and ignores and does not demodulate at least the next remaining bursts of the speech frame after entering DRX mode.

Abstract translation: 在无线网络中操作的用户设备（UE）在语音信道上接收语音帧序列。 UE解调接收到的语音帧序列的语音帧的至少一部分以产生度量值。 如果度量值指示不存在有效语音数据，则UE中断语音帧的处理并进入低功率不连续接收（DRX）模式，并且在进入DRX模式之后至少忽略并且不解调语音帧的下一个剩余突发 。