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公开(公告)号：US09674593B2
公开(公告)日：2017-06-06
申请号：US14573653
申请日：2014-12-17
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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公开(公告)号：US20160352915A1
公开(公告)日：2016-12-01
申请号：US15142304
申请日：2016-04-29
Applicant: NXP B.V.
Inventor： Temujin Gautama
IPC: H04M9/08
CPC classification number: H04M9/082 , G10L2021/02082 , H04R3/02 , H04R29/001
Abstract: The present disclosure relates to an echo controller, for use with a microphone and a device comprising a loudspeaker, the echo controller comprising: a sensor with sensing capabilities configured to provide displacement-signalling representative of a displacement of a diaphragm of the loudspeaker, wherein the sensing capabilities of the sensor are isolated from an external environment of the device; and a cancellation block configured to determine a cancellation-signal based on the displacement-signalling; wherein the cancellation-signal is for adapting a received-signal provided by the microphone to determine an echo-cancelled-signal.
Abstract translation: 本公开涉及一种与麦克风一起使用的回波控制器和包括扬声器的设备，所述回波控制器包括：具有感测能力的传感器，其被配置为提供代表所述扬声器的振膜的位移的位移信号，其中， 传感器的感测能力与设备的外部环境隔离; 以及消除块，被配置为基于所述位移信号来确定取消信号; 其中取消信号用于调整由麦克风提供的接收信号以确定回波消除信号。
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公开(公告)号：US09258643B2
公开(公告)日：2016-02-09
申请号：US14133186
申请日：2013-12-18
Applicant: NXP B.V.
CPC classification number: H04R3/00 , H04H20/22 , H04H20/26 , H04H2201/13 , H04H2201/20
Abstract: A time modification system is disclosed. The time modification module includes a delay module for receiving an input signal comprising a series of digital samples at an input sample rate. The delay module provides a delayed output signal. The time modification module further includes a duration modification module for receiving the input signal or a delayed version thereof, and providing a modified output signal. A first switch is included for selecting either the delayed output signal or the modified output signal.
Abstract translation: 公开了时间修改系统。 时间修改模块包括延迟模块，用于以输入采样率接收包括一系列数字样本的输入信号。 延迟模块提供延迟的输出信号。 时间修改模块还包括用于接收输入信号或其延迟版本的持续时间修改模块，并提供经修改的输出信号。 包括用于选择延迟输出信号或经修改的输出信号的第一开关。
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公开(公告)号：US20140169590A1
公开(公告)日：2014-06-19
申请号：US14133186
申请日：2013-12-18
Applicant: NXP B.V.
IPC: H04R3/00
CPC classification number: H04R3/00 , H04H20/22 , H04H20/26 , H04H2201/13 , H04H2201/20
Abstract: A time modification system is disclosed. The time modification module includes a delay module for receiving an input signal comprising a series of digital samples at an input sample rate. The delay module provides a delayed output signal. The time modification module further includes a duration modification module for receiving the input signal or a delayed version thereof, and providing a modified output signal. A first switch is included for selecting either the delayed output signal or the modified output signal.
Abstract translation: 公开了时间修改系统。 时间修改模块包括延迟模块，用于以输入采样率接收包括一系列数字样本的输入信号。 延迟模块提供延迟的输出信号。 时间修改模块还包括用于接收输入信号或其延迟版本的持续时间修改模块，并提供经修改的输出信号。 包括用于选择延迟输出信号或经修改的输出信号的第一开关。
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公开(公告)号：US20240161760A1
公开(公告)日：2024-05-16
申请号：US18506201
申请日：2023-11-10
Applicant: NXP B.V.
Inventor： Temujin Gautama
IPC: G10L19/018
CPC classification number: G10L19/018
Abstract: An audio system and method is described to monitor whether the audio processing performed on an audio signal is corrupted. The audio system includes module to embed a watermark into an audio signal, and a verification module to verify the presence of the watermark after the audio processing has been performed. The embedding strength of the watermark can be adjusted on the basis of whether the presence of the watermark is detected. The embedding strength for the watermark may be adjusted such that it is as low as possible while still allowing detection, thus keeping the audio quality as high as possible.
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Patent Agency Ranking
公开(公告)号：US20220369055A1
公开(公告)日：2022-11-17
申请号：US17660380
申请日：2022-04-22
Applicant: NXP B.V.
Inventor： Temujin Gautama
Abstract: There is disclosed an audio playback system including a loudspeaker, a microphone and a means for implementing a method of detecting a fault which includes the generation and analysis of a specific ultrasound reference signal. The presence of the ultrasound reference signal can be detected on the microphone signal, and the signal-to-noise ratio can be estimated during the reference signal playback so that the volume of the reference signal can be adapted if necessary. The reference signal is a multi-sinusoidal signal which, when averaged over time increases the expected signal-to-noise ratio, and hence, the power of the detector.
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公开(公告)号：US20190286235A1
公开(公告)日：2019-09-19
申请号：US16297809
申请日：2019-03-11
Applicant: NXP B.V.
Inventor： Temujin Gautama
Abstract: A method and apparatus for generating a haptic signal is described. An audio signal is received and an event signal comprising a plurality of pulses is determined from a characteristic of the audio signal. A haptic output signal is generated by combining a haptic pattern triggered by a first pulse and at least one further substantially identical haptic pattern triggered by at least one further pulse.
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公开(公告)号：US20190128935A1
公开(公告)日：2019-05-02
申请号：US16118995
申请日：2018-08-31
Applicant: NXP B.V.
Inventor： Temujin Gautama , Remko van Heeswijk
CPC classification number: G01R27/16 , G01R27/08 , H03F3/181 , H03F3/183 , H03F3/217 , H03F2200/03 , H03F2200/129 , H03F2200/331 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001
Abstract: A load detector for an audio system comprising a closed-loop amplifier is described. The load detector includes a noise detector configured to be coupled to the output of the closed-loop amplifier. The noise detector detects a noise signal at least partially generated by the amplifier. The generated noise signal comprises frequencies outside the audible frequency range due to the noise shaping of the amplifier. The load detector further includes a parameter calculation module having an input coupled to the output of the noise detector and an output. The parameter calculation module is configured to determine a parameter value relating to an impedance of the amplifier output load from the detected noise signal and to output a load detection signal dependent on the determined parameter value. The load detector may detect the presence of a load such as a tweeter without generating a reference signal.
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公开(公告)号：US20190068152A1
公开(公告)日：2019-02-28
申请号：US16038386
申请日：2018-07-18
Applicant: NXP B.V.
Inventor： Temujin Gautama
Abstract: An audio processor is described. The audio processor includes a sensor input; an audio input for receiving an audio input signal; an audio output for outputting an audio signal to a loudspeaker. The audio processor is configured to determine a parameter value representative of temperature from a sensor signal received on the sensor input; process a received audio input signal by increasing the audio signal power in response to the temperature being below a predetermined threshold; and output the processed audio to signal on the audio output.
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公开(公告)号：US20180350339A1
公开(公告)日：2018-12-06
申请号：US15935348
申请日：2018-03-26
Applicant: NXP B.V.
Inventor： Christophe Marc Macours , Temujin Gautama , Nicolas Vincens
IPC: G10K11/175
CPC classification number: B06B1/0253 , F01N1/065 , G08B6/00 , G10K11/178 , H04M19/047
Abstract: A method and apparatus of acoustic processing for a mobile device having a haptic actuator is described. A vibration drive signal for driving a haptic actuator is received. A vibration noise output from a haptic actuator is detected. At least one vibration noise metric from the detected vibration noise output and the vibration drive signal is generated. The vibration noise output level is adapted in dependence of the at least one vibration noise metric.
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