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公开(公告)号：US20140072122A1
公开(公告)日：2014-03-13
申请号：US14023350
申请日：2013-09-10
Applicant: NXP B.V.
Inventor： Temujin Gautama
IPC: H04R5/04
CPC classification number: H04R5/04 , H04H40/72 , H04L25/03159
Abstract: The invention provides an audio signal processing system in which a magnitude spectrum of a frequency domain audio signal is processed based on a measure of multipath interference. The processing keeps the magnitude spectrum approximately fixed during periods of multipath interference, for example by replacing it with a temporally smoothed version of the magnitude spectrum. The magnitude spectrum (processed if required) and the phase spectrum are combined to derive a frequency domain output, which is transformed to the time domain.
Abstract translation: 本发明提供一种音频信号处理系统，其中基于多路径干扰的测量来处理频域音频信号的幅度谱。 该处理在多径干扰期间保持幅度谱近似固定，例如用幅度谱的时间平滑版本代替它。 幅度谱（如果需要处理）和相位频谱被组合以导出频域输出，其被转换到时域。
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公开(公告)号：US12225360B2
公开(公告)日：2025-02-11
申请号：US17808622
申请日：2022-06-24
Applicant: NXP B.V.
Inventor： Temujin Gautama , Christophe Marc Macours , Bram Hedebouw
Abstract: An audio processor and method of audio processing for an amplifier system is described. The audio processor may receive an audio signal and adapt the audio signal generating a time varying offset. The time varying offset may be combined with the audio signal resulting in a shifted the audio signal level. The processed audio signal may also be clipped to remove the negative samples values. The processed signal may be used to drive an amplifier designed to only accept positive (or negative) signals such as a class C amplifier.
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公开(公告)号：US10056070B2
公开(公告)日：2018-08-21
申请号：US15841917
申请日：2017-12-14
Applicant: NXP B.V.
Inventor： Temujin Gautama
IPC: G10K11/178 , H04B1/10
CPC classification number: G10K11/17821 , G10K11/17875 , G10L21/0232 , G10L2021/02161 , H04B1/1027 , H04H20/22 , H04H40/72
Abstract: A receiver circuit comprising a first-input-terminal configured to receive an analog-input-signal, which is representative of audio-data; and a second-input-terminal configured to receive a digital-input-signal, which is representative of the same audio-data as the analog-input-signal. The receiver circuit also includes a noise-estimator configured to determine a noise-signal that is representative of a difference between the analog-input-signal and the digital-input-signal; and a de-noiser that is configured to determine a de-noised-signal by applying a de-noising algorithm to the analog-input-signal based on the noise-signal.
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公开(公告)号：US20180096693A1
公开(公告)日：2018-04-05
申请号：US15710658
申请日：2017-09-20
Applicant: NXP B.V.
Inventor： Temujin Gautama
IPC: G10L19/018 , H04L12/18 , G10L19/008 , H04M3/56
CPC classification number: G10L19/018 , G10L19/008 , G10L19/167 , H04L12/1822 , H04M3/568 , H04S2420/01 , H04S2420/03
Abstract: An apparatus and method for speech communication is described. An audio transmit processor captures at least two audio signals from an audio source, and processes the at least two audio signals to provide a mono audio signal and a non-audio signal comprising spatial information representative of the direction of the audio source. The audio transmit processor combines the non-audio signal with the mono audio signal by watermarking; and transmits the watermarked audio signal. An audio receive processor receives a watermarked audio signal and extracts a mono audio signal and a non-audio signal comprising spatial information from the watermarked audio signal. The audio receive processor processes the mono audio signal and spatial information to generate at least two output audio signals.
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公开(公告)号：US20170257686A1
公开(公告)日：2017-09-07
申请号：US15598527
申请日：2017-05-18
Applicant: NXP B.V.
CPC classification number: H04R1/00 , H04R3/00 , H04R3/002 , H04R3/007 , H04R29/001 , H04R29/003
Abstract: A loudspeaker controller (1) for controlling a loudspeaker (2), configured to determine time-varying impedance information of the loudspeaker (2) based on a loudspeaker voltage and a measure of a loudspeaker current and provide for control of the loudspeaker (2) in accordance with said time-varying impedance information.
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Patent Agency Ranking
公开(公告)号：US09686608B2
公开(公告)日：2017-06-20
申请号：US14476180
申请日：2014-09-03
Applicant: NXP B.V.
Inventor： Christophe Macours , Temujin Gautama
CPC classification number: H04R3/02 , G01H1/00 , H04M1/6016 , H04R3/04 , H04R29/001 , H04R2460/01 , H04R2460/15 , H04R2499/11
Abstract: An acoustic coupling sensor 200 for a portable electronic device is described which includes an acoustic transmitter 22, a reference signal generator 20 coupled to the acoustic transmitter, and an acoustic sensor 24 wherein in operation, the reference signal generator is operable to transmit the reference signal to the acoustic transmitter, to detect an acoustic level of the transmitted reference signal via the acoustic sensor, and wherein the detected reference signal level corresponds to a value of acoustic coupling between the acoustic transmitter and the acoustic sensor. The acoustic coupling sensor may be used for example in a mobile phone to detect acoustic leakage in order to adapt the acoustic level in the mobile phone during use.
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公开(公告)号：US09607628B2
公开(公告)日：2017-03-28
申请号：US14855094
申请日：2015-09-15
Applicant: NXP B.V.
Inventor： Temujin Gautama
IPC: G10L21/0316 , H03G3/20 , H04R3/04 , H04R3/00
CPC classification number: G10L21/0316 , H03G3/20 , H04R3/002 , H04R3/04
Abstract: An audio system is described including an audio processor, an amplifier and a speaker and a distortion estimator. The distortion estimator calculates at least one of an expected response of the amplifier to an audio signal and an expected response of the loudspeaker to an audio signal. The distortion estimator is operable to generate a distortion prediction signal determined by a difference between an expected non-linear response of at least one of the loudspeaker and the amplifier and an expected linear response of at least one of the loudspeaker and the amplifier. A controller coupled to the audio processor and a control input of the audio processor may vary the operating parameters of the audio processor depending on the estimated distortion.
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公开(公告)号：US09538303B2
公开(公告)日：2017-01-03
申请号：US14634402
申请日：2015-02-27
Applicant: NXP B.V.
Inventor： Temujin Gautama
CPC classification number: H04R29/001 , H03F1/30 , H03F1/52 , H03F3/187 , H03F2200/447 , H03F2200/468 , H04R1/00 , H04R3/007 , H04R29/003
Abstract: An audio controller for use with a loudspeaker that generates sound in dependence upon a loudspeaker signal is disclosed. The loudspeaker includes a voice coil. The audio controller includes a monitor to monitor an electric response of the voice coil to the loudspeaker signal and a signal generator to generate an evaluation signal. The evaluation signal comprises a signal having an evaluation frequency that is below resonant frequency of the loudspeaker. A processing unit is included to generate, based on the monitored electric response, the loudspeaker signal from an input sound signal. The processing unit is configured to combine the evaluation signal with the input sound signal to generate the loudspeaker signal.
Abstract translation: 公开了一种用于与根据扬声器信号产生声音的扬声器一起使用的音频控制器。 扬声器包括音圈。 音频控制器包括用于监测音圈对扬声器信号的电响应的监视器和信号发生器，以产生评估信号。 评估信号包括具有低于扬声器谐振频率的评估频率的信号。 包括处理单元，用于根据所监视的电响应，从输入声音信号产生扬声器信号。 处理单元被配置为将评估信号与输入声音信号组合以产生扬声器信号。
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公开(公告)号：US20160322949A1
公开(公告)日：2016-11-03
申请号：US15141904
申请日：2016-04-29
Applicant: NXP B.V.
Inventor： Temujin Gautama
Abstract: A gain function controller may be configured to: receive a first plurality of sub-band-signals; determine a frequency-domain-gain-function for a second plurality of sub-band-signals, based on: the first plurality of sub-band-signals; a power of a first full-band signal; and a predetermined compression curve; and apply the frequency-domain-gain-function to the second plurality of sub-band-signals to provide a frequency-domain-output-signal.
Abstract translation: 增益功能控制器可以被配置为：接收第一多个子带信号; 基于：所述第一多个子带信号，确定第二多个子带信号的频域增益函数; 第一全频带信号的功率; 和预定的压缩曲线; 并将频域增益函数应用于第二多个子带信号以提供频域输出信号。
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公开(公告)号：US20160269128A1
公开(公告)日：2016-09-15
申请号：US15062135
申请日：2016-03-06
Applicant: NXP B.V.
Inventor： Temujin Gautama , Nico Ricquier
CPC classification number: H04B11/00 , H04R3/00 , H04R3/12 , H04R2430/01 , H04S7/301
Abstract: A receiver-audio-device and a transmitter-audio-device. The receiver-audio-device comprises a receiver-ultrasound-receiver, configured to receive transmitter-ultrasound-signals representative of a request, from a transmitter-audio-device, for complementary audio resources; and a receiver-processor, configured to generate a complementary-audio-output-signal based on at least the transmitter-ultrasound-signals and to provide the complementary-audio-output-signal to a receiver-loudspeaker. The receiver-loudspeaker is configured to provide a complementary-audio-output based on the complementary-audio-output-signal. The transmitter-audio-device, comprising: a transmitter-ultrasound-transmitter, configured to provide transmitter-ultrasound-signals representative of a request for complementary audio resources; a transmitter processor, configured to generate an audio-output-signal and to provide the audio-output-signal to a transmitter-loudspeaker. The transmitter-loudspeaker is configured to provide an audio-output based on the audio-output-signal.
Abstract translation: 接收机 - 音频设备和发射机 - 音频设备。 接收机 - 音频设备包括接收机 - 超声 - 接收机，被配置为从发射机 - 音频设备接收代表请求的发射机 - 超声信号，用于补充音频资源; 以及接收器处理器，被配置为基于至少所述发射机 - 超声信号产生互补音频输出信号，并将所述互补音频输出信号提供给接收机 - 扬声器。 接收器扬声器被配置为基于互补音频输出信号提供互补音频输出。 发射机 - 音频设备，包括：发射机超声发射机，被配置为提供代表对互补音频资源的请求的发射机超声信号; 发射机处理器，被配置为产生音频输出信号并将音频输出信号提供给发射器 - 扬声器。 发射器 - 扬声器被配置为基于音频输出信号提供音频输出。
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