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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：US20180139538A1
公开(公告)日：2018-05-17
申请号：US15798653
申请日：2017-10-31
Applicant: NXP B.V.
Inventor： Christophe Marc Macours
CPC classification number: H04R3/04 , G06F3/016 , G06F3/041 , G10L21/0208 , G10L21/0232 , H03F3/183 , H03F3/217 , H03F2200/03 , H03G5/165 , H04R17/10 , H04R2400/03
Abstract: A linear resonant actuator controller for a mobile device having a linear resonant actuator is described. The linear resonant actuator controller comprises a controller output configured to be coupled to a linear resonant actuator; an audio processor having an audio processor input and an audio processor output coupled to the controller output. The audio processor is configured to receive an audio signal comprising speech, to process the audio signal by attenuating the audio signal frequency components at the resonant frequency of the linear resonant actuator with respect to at least some other audio signal frequency components, and to output the processed audio signal on the audio processor output.
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公开(公告)号：US20170169674A1
公开(公告)日：2017-06-15
申请号：US15372809
申请日：2016-12-08
Applicant: NXP B.V.
Inventor： Christophe Marc Macours
CPC classification number: G08B6/00 , G06F3/016 , H04M19/047
Abstract: A haptic feedback element controller for a mobile device and a method of controlling a haptic feedback element for a mobile device is described. The haptic feedback element includes a processor having a processor output, a first processor input, and a second processor input, a control state module having an output coupled to the second processor input and configured to determine at least one operating state parameter of at least one of a haptic feedback element and a haptic feedback element amplifier; wherein the processor is configured to alter the amplitude of one or more frequency components of an input signal received on the first processor input in dependence of the at least one operating state parameter and to output a processed signal to a haptic feedback element amplifier having an output for coupling to a haptic feedback element. The haptic feedback element controller may maximize the drive signal up to mechanical and thermal limits without lifetime reduction of the haptic feedback element.
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24.发明申请AUDIO AND ULTRASOUND SIGNAL PROCESSING CIRCUIT AND AN ULTRASOUND SIGNAL PROCESSING CIRCUIT, AND ASSOCIATED METHODS 有权音频和超声信号处理电路和超声信号处理电路及相关方法公开(公告)号：US20150085620A1
公开(公告)日：2015-03-26
申请号：US14463425
申请日：2014-08-19
Applicant: NXP B.V.
Inventor： Christophe Marc Macours
IPC: G08C23/02
CPC classification number: G08C23/02 , H03G3/3005 , H03G7/002
Abstract: An audio and ultrasound signal processing circuit (412), comprising: an audio input terminal (414) for receiving an input signal comprising an audio input signal; an amplitude detector (430), configured to determine an amplitude of the input signal and provide an amplitude level signal (432); a gain calculator (434) configured to determine an ultrasound amplification factor (436) in accordance with the amplitude level signal (432) and a target amplitude signal (418); a variable ultrasound amplifier (438) configured to receive an ultrasound input signal and modulate an amplitude of the ultrasound input signal in accordance with the ultrasound amplification factor (436) in order to provide an amplified ultrasound signal; and an output terminal (416) for providing an enhanced output signal comprising frequency components that correspond to the audio input signal and frequency components that correspond to the amplified ultrasound signal.
Abstract translation: 一种音频和超声信号处理电路（412），包括：音频输入端（414），用于接收包括音频输入信号的输入信号; 振幅检测器（430），被配置为确定所述输入信号的幅度并提供振幅电平信号（432）; 增益计算器（434），被配置为根据所述振幅电平信号（432）和目标振幅信号（418）确定超声波放大因子（436）。 可变超声波放大器（438），被配置为接收超声波输入信号并且根据超声波放大因子（436）调制超声波输入信号的振幅，以便提供放大的超声信号; 以及输出端子（416），用于提供增强的输出信号，该增强输出信号包括对应于音频输入信号的频率分量和对应于放大的超声信号的频率分量。
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公开(公告)号：US20150011264A1
公开(公告)日：2015-01-08
申请号：US14315060
申请日：2014-06-25
Applicant: NXP B.V.
Inventor： Christophe Marc Macours
IPC: H04M1/60
CPC classification number: H04M1/605 , H03G5/005 , H03G5/165 , H04M1/6041 , H04R2499/11
Abstract: Mobile devices such as mobile phones typically have two speakers, one for use in a hand-set mode and one for use in a hands-free mode. A mobile device (1100) is described operable to switch between a hand-set mode and a hands-free mode, the mobile device includes a receiver speaker (10) operable in the hand-set mode and the hands-free mode of the mobile device, and a hands-free speaker (12) operable in the hands-free mode of the mobile device. The mobile device is operable in hands-free mode to route at least one audio signal to the receiver speaker and the hands-free speaker. Using the hands-free speaker and the receiver speaker may improve the sound quality without increasing the cost.
Abstract translation: 诸如移动电话的移动设备通常具有两个扬声器，一个用于手持模式，一个用于免提模式。 描述了可操作以在手持模式和免提模式之间切换的移动设备（1100），移动设备包括可在手持模式中操作的接收者扬声器（10）和可移动的免提模式 装置和可在移动装置的免提模式下操作的免提扬声器（12）。 移动设备可在免提模式下操作以将至少一个音频信号路由到接收者扬声器和免提扬声器。 使用免提扬声器和接收器扬声器可以提高音质，而不增加成本。
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Patent Agency Ranking
公开(公告)号：US20230088440A1
公开(公告)日：2023-03-23
申请号：US17823263
申请日：2022-08-30
Applicant: NXP B.V.
Inventor： Christophe Marc Macours , Temujin Gautama , Alexander Barry Young
IPC: H04B1/12
Abstract: A signal processor and method of signal processing for a radio receiver is described. An input signal is received together with a spectral repetition interval value of an interferer signal. An interference reference signal is generated from the received spectral repetition interval value and the received signal. The received signal is adapted using the generated interference reference signal.
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公开(公告)号：US11277287B2
公开(公告)日：2022-03-15
申请号：US16835110
申请日：2020-03-30
Applicant: NXP B.V.
Inventor： Joris Louis L Luyten , Christophe Marc Macours , Temujin Gautama
Abstract: In one example, a communications circuit processes an amplitude modulated signal by using a first circuit having signal paths to process an amplitude modulated signal as represented by an in-phase component and by a quadrature component, and by using a second circuit to discern random noise pulses from the quadrature component of the amplitude modulated signal. In response, the second circuit generates an estimate of overall noise representing the random noise pulses in the amplitude modulated signal. In the above and more specific examples, the random noise pulses may appear as pulses which overlap with, in terms of time and bandwidth of frequency spectrum, information of the amplitude modulated signal, and the first and second circuits may be part of an RF radio receiving the amplitude modulated signal from an antenna.
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公开(公告)号：US10531191B2
公开(公告)日：2020-01-07
申请号：US15292594
申请日：2016-10-13
Applicant: NXP B.V.
Inventor： Christophe Marc Macours
Abstract: A controller for a haptic feedback element is described, the haptic feedback element being configured to generate haptic vibrations, wherein the controller comprises a sense input and is configured to sense a signal induced on at least one terminal of the haptic feedback element in response to an external vibration source. The controller may sense vibrations induced one or more terminals of a haptic feedback element. The external vibration source may for example be due to speech transmitted via bone conduction which can be detected and subsequently processed.
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公开(公告)号：US09959716B2
公开(公告)日：2018-05-01
申请号：US15599262
申请日：2017-05-18
Applicant: NXP B.V.
Inventor： Christophe Marc Macours , Shawn William Scarlett , Michael Joehren
CPC classification number: G08B6/00 , G06F3/016 , H02P6/183 , H02P25/034 , H04N5/2254 , H04N5/2257
Abstract: A system for producing a mechanical haptic pattern based on linear resonance actuator (LRA) signal is disclosed. The system includes an actuator displacement sensor, the actuator displacement sensor configured to apply an alternating measurement signal at a predetermined frequency to an actuator motor. The actuator displacement sensor configured to use a measure of a voltage across and a current through the actuator motor to determine its impedance at the predetermined frequency and determine an estimated displacement of the actuator motor using said impedance and a predetermined displacement-impedance function. The system also includes a controller configured to accept the LRA signal and the estimated displacement, wherein the controller is configured to alter the input LRA signal according to the estimated displacement to limit excursion of a moving part of the actuator motor.
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公开(公告)号：US20170256145A1
公开(公告)日：2017-09-07
申请号：US15599262
申请日：2017-05-18
Applicant: NXP B.V.
Inventor： Christophe Marc Macours , Shawn William Scarlett , Michael Joehren
CPC classification number: G08B6/00 , G06F3/016 , H02P6/183 , H02P25/034 , H04N5/2254 , H04N5/2257
Abstract: A system for producing a mechanical haptic pattern based on linear resonance actuator (LRA) signal is disclosed. The system includes an actuator displacement sensor, the actuator displacement sensor configured to apply an alternating measurement signal at a predetermined frequency to an actuator motor. The actuator displacement sensor configured to use a measure of a voltage across and a current through the actuator motor to determine its impedance at the predetermined frequency and determine an estimated displacement of the actuator motor using said impedance and a predetermined displacement-impedance function. The system also includes a controller configured to accept the LRA signal and the estimated displacement, wherein the controller is configured to alter the input LRA signal according to the estimated displacement to limit excursion of a moving part of the actuator motor.
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