ACOUSTIC PROCESSOR
    1.
    发明申请
    ACOUSTIC PROCESSOR 审中-公开

    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.

    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.

    Audio and ultrasound signal processing circuit and an ultrasound signal processing circuit, and associated methods

    公开(公告)号:US09892631B2

    公开(公告)日:2018-02-13

    申请号:US14463425

    申请日:2014-08-19

    Applicant: NXP B.V.

    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.

    ACOUSTIC PAIRING
    3.
    发明申请
    ACOUSTIC PAIRING 有权
    声乐配对

    公开(公告)号:US20170071017A1

    公开(公告)日:2017-03-09

    申请号:US14847956

    申请日:2015-09-08

    Applicant: NXP B.V.

    Abstract: One example discloses an acoustic pairing device, comprising: an acoustic processor configured to receive a first acoustic signal and a second acoustic signal; a signal comparison module configured to identify a propagation delay or amplitude difference between the first and second acoustic signals; and a pairing module configured to output a pairing signal if the propagation delay or amplitude difference is between a first value and a second value. Another example discloses a method for acoustic pairing between a first device and a second device, executed by a computer programmed with non-transient executable instructions, comprising: receiving a propagation delay or amplitude difference between a first acoustic signal and a second acoustic signal; pairing the first and second devices if the propagation delay or amplitude difference is between a first value and a second value.

    Abstract translation: 一个实例公开了一种声耦合装置,包括:声处理器,被配置为接收第一声信号和第二声信号; 信号比较模块,被配置为识别所述第一和第二声学信号之间的传播延迟或幅度差异; 以及配对模块,被配置为如果所述传播延迟或幅度差在第一值和第二值之间,则输出配对信号。 另一个例子公开了一种用于由非瞬态可执行指令编程的计算机执行的第一设备和第二设备之间的声耦合的方法,包括:接收第一声信号和第二声信号之间的传播延迟或幅度差; 如果传播延迟或幅度差在第一值和第二值之间,则将第一和第二装置配对。

    AUDIO ALERT GENERATION METHOD AND APPARATUS
    4.
    发明公开

    公开(公告)号:US20230356593A1

    公开(公告)日:2023-11-09

    申请号:US18310642

    申请日:2023-05-02

    Applicant: NXP B.V.

    CPC classification number: B60K35/00 H04R3/00 H04R2499/13 B60K2370/157

    Abstract: A method of generating an audible alert by a digital audio system configured to operate in a first operating mode and a second operating mode is described. An alert signal is generated or received. One or more segments of the generated or received alert signal is processed. The processed alert signal is then analysed to define the operating mode of the digital audio system. In the first operating mode, the alert output signal includes at least the alert signal. In the second operating mode, the alert output signal includes at least the processed alert signal.

    AUDIO PROCESSOR
    5.
    发明申请

    公开(公告)号:US20230007395A1

    公开(公告)日:2023-01-05

    申请号:US17808622

    申请日:2022-06-24

    Applicant: NXP B.V.

    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.

    PROCESSING AMPLITUDE MODULATION SIGNALS WITH NOISE ESTIMATION

    公开(公告)号:US20210306188A1

    公开(公告)日:2021-09-30

    申请号:US16835110

    申请日:2020-03-30

    Applicant: NXP B.V.

    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.

    Linear resonant actuator controller

    公开(公告)号:US10165364B2

    公开(公告)日:2018-12-25

    申请号:US15798653

    申请日:2017-10-31

    Applicant: NXP B.V.

    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.

    Haptic feedback controller
    8.
    发明授权

    公开(公告)号:US09947186B2

    公开(公告)日:2018-04-17

    申请号:US15372809

    申请日:2016-12-08

    Applicant: NXP B.V.

    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.

    CONTROLLER FOR A HAPTIC FEEDBACK ELEMENT
    10.
    发明申请

    公开(公告)号:US20170111734A1

    公开(公告)日:2017-04-20

    申请号:US15292594

    申请日:2016-10-13

    Applicant: NXP B.V.

    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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