公开(公告)号：US09681227B2

公开(公告)日：2017-06-13

申请号：US14593843

申请日：2015-01-09

Applicant: INTEL IP CORPORATION

Inventor： Richard Ronig ,  Christian Kranz ,  Markus Hammes

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R3/007 ,  H04R3/002 ,  H04R29/003 ,  H04R2499/11

Abstract: An audio output device is described comprising a speaker; an audio output circuit configured to receive a first audio signal and configured to supply the first audio signal and a second audio signal to the speaker, wherein the second audio signal comprises a higher frequency than the first audio signal; a microphone configured to receive an acoustic signal from the speaker in response to the first audio signal and the second audio signal and to convert the acoustic signal into a received audio signal and a determiner configured to determine a phase of a frequency component of the received audio signal corresponding to the second audio signal and to determine an excursion of the speaker by the first audio signal based on the phase.

公开(公告)号：US09565505B2

公开(公告)日：2017-02-07

申请号：US14742397

申请日：2015-06-17

Applicant: Intel IP Corporation

Inventor： Richard Ronig ,  Markus Hammes ,  Christian Kranz

IPC: H04R29/00 ,  H04R3/00 ,  H04R3/04

CPC classification number: H04R29/003 ,  H04R3/007 ,  H04R3/04 ,  H04R2499/11 ,  H04R2499/15

Abstract: The excursion of a loudspeaker cone is estimated using a reference signal in one example, a primary signal, produced by a cone of a loudspeaker, is received and a reference signal produced simultaneously with the primary signal by the loudspeaker cone is received. The reference signal causes an excursion of the loudspeaker cone that is amplitude modulated by the excursion caused by the primary signal. An amplitude modulation of the reference signal is determined and an excursion of the loudspeaker cone is determined using the determined amplitude modulation.

Abstract translation: 在一个示例中，使用参考信号估计扬声器锥的偏移，接收由扬声器的锥形产生的主信号，并且接收由扬声器锥体与主信号同时产生的参考信号。 参考信号引起由主信号引起的偏移进行幅度调制的扬声器锥的偏移。 确定参考信号的幅度调制，并且使用确定的幅度调制确定扬声器锥的偏移。

公开(公告)号：US20160377728A1

公开(公告)日：2016-12-29

申请号：US15151796

申请日：2016-05-11

Applicant: Intel IP Corporation

Inventor： Rainer Dirk Kreienkamp ,  Junlin Yan ,  Harald Doppke ,  Markus Hammes

IPC: G01S19/23

CPC classification number: G01S19/23

Abstract: A method for determining an image rejection characteristic of a receiver within a transceiver is provided. The transceiver uses a common local oscillator. The method includes generating a test signal having a spectral peak and generating a local oscillator signal comprising a frequency with an offset from a center frequency of the spectral peak. Further, the method includes down-mixing the test signal in the receiver using the local oscillator signal to generate a down-mixed signal. The method further includes calculating a first value of a signal characteristic of the down-mixed signal in a first frequency range corresponding to a desired signal component of the down-mixed signal and calculating a second value of the signal characteristic of the down-mixed signal in a second frequency range corresponding to an undesired signal component of the down-mixed signal. Further, the method includes comparing the first value and the second value to generate the image rejection characteristic.

Abstract translation: 提供了一种用于确定收发器内的接收机的镜像抑制特性的方法。 收发器使用公共本地振荡器。 该方法包括产生具有频谱峰值的测试信号并产生包括具有与频谱峰值的中心频率偏移的频率的本地振荡器信号。 此外，该方法包括使用本地振荡器信号对接收机中的测试信号进行下混频以产生下混合信号。 该方法还包括：在与下混频信号的期望信号分量对应的第一频率范围内计算下混合信号的信号特性的第一值，并计算下混频信号的信号特性的第二值 在对应于下混合信号的不期望信号分量的第二频率范围内。 此外，该方法包括比较第一值和第二值以产生图像抑制特性。