公开(公告)号：US20150256660A1

公开(公告)日：2015-09-10

申请号：US14197814

申请日：2014-03-05

Applicant: Cirrus Logic, Inc.

Inventor： Roy Scott Kaller ,  Jon D. Hendrix

IPC: H04M1/58

CPC classification number: H04M1/58 ,  G10L21/0364 ,  G10L2021/02082 ,  H04M1/585 ,  H04M9/08

Abstract: A personal audio device includes a sidetone circuit with one or more adjustable coefficients that generates a sidetone signal from the output of a first microphone. The sidetone circuit has one or more adjustable coefficients for altering the relationship between the first microphone signal and the sidetone signal. The personal audio device also includes a transducer for reproducing playback audio and the sidetone signal at an ear of a listener and a second microphone for measuring the output of the transducer as delivered to the ear of the listener. The sidetone circuit includes a calibration circuit for estimating a response of the second microphone to the sidetone signal and adjusting the coefficient of the sidetone circuit according to the estimated response.

Abstract translation: 个人音频设备包括具有一个或多个可调节系数的侧音电路，其从第一麦克风的输出产生侧音信号。 侧音电路具有用于改变第一麦克风信号和侧音信号之间的关系的一个或多个可调系数。 个人音频设备还包括用于再现回放音频的换能器和在收听者的耳朵处的侧音信号，以及用于测量传递到收听者的耳朵的换能器的输出的第二麦克风。 侧音电路包括校准电路，用于估计第二麦克风对侧音信号的响应，并且根据估计的响应调整侧音电路的系数。

公开(公告)号：US09648410B1

公开(公告)日：2017-05-09

申请号：US14207053

申请日：2014-03-12

Applicant: Cirrus Logic, Inc.

Inventor： Robert George Kratsas ,  Roy Scott Kaller

IPC: G10K11/16 ,  H04R1/10 ,  H04R3/00

CPC classification number: H04R1/1041 ,  G10K11/17813 ,  G10K11/1783 ,  G10K2210/1081 ,  H04R2430/01

Abstract: A headphone earbud may include a sensor to determine characteristics of an environment around the headphone earbud. The sensor may be integrated with the headphone earbud to measure a distance from the headphone earbud to a user's ear drum. This distance may be used to control an audio output of the headphone earbud, such as through an adaptive noise cancellation (ANC) algorithm. Control over the audio output may be performed by an audio integrated circuit (IC) integrated within the headphone earbud or within a mobile device coupled to the headphone earbud.

公开(公告)号：US09609416B2

公开(公告)日：2017-03-28

申请号：US14299836

申请日：2014-06-09

Applicant: Cirrus Logic, Inc.

Inventor： Roy Scott Kaller ,  Aaron Brennan

IPC: H04R1/10 ,  G08G1/0967

CPC classification number: H04R1/1041 ,  G08G1/096791 ,  H04R1/1083

Abstract: An optical sensor may be integrated into headphones and feedback from the sensor used to adjust an audio output from the headphones. For example, an emergency vehicle traffic preemption signal may be detected by the optical sensor. Optical signals may be processed in a pattern discriminator, which may be integrated with an audio controller integrated circuit (IC). When the signal is detected, the playback of music through the headphones may be muted and/or a noise cancellation function turned off. The optical sensor may be integrated in a music player, a smart phone, a tablet, a cord-mounted module, or the earpieces of the headphones.

公开(公告)号：US09369557B2

公开(公告)日：2016-06-14

申请号：US14197814

申请日：2014-03-05

Applicant: Cirrus Logic, Inc.

Inventor： Roy Scott Kaller ,  Jon D. Hendrix

IPC: H04M1/00 ,  H04M1/58 ,  H04M9/08 ,  G10L21/0364 ,  G10L21/0208

CPC classification number: H04M1/58 ,  G10L21/0364 ,  G10L2021/02082 ,  H04M1/585 ,  H04M9/08

Abstract: A personal audio device includes a sidetone circuit with one or more adjustable coefficients that generates a sidetone signal from the output of a first microphone. The sidetone circuit has one or more adjustable coefficients for altering the relationship between the first microphone signal and the sidetone signal. The personal audio device also includes a transducer for reproducing playback audio and the sidetone signal at an ear of a listener and a second microphone for measuring the output of the transducer as delivered to the ear of the listener. The sidetone circuit includes a calibration circuit for estimating a response of the second microphone to the sidetone signal and adjusting the coefficient of the sidetone circuit according to the estimated response.

Abstract translation: 个人音频设备包括具有一个或多个可调节系数的侧音电路，其从第一麦克风的输出产生侧音信号。 侧音电路具有用于改变第一麦克风信号和侧音信号之间的关系的一个或多个可调系数。 个人音频设备还包括用于再现回放音频的换能器和在收听者的耳朵处的侧音信号，以及用于测量传递到收听者的耳朵的换能器的输出的第二麦克风。 侧音电路包括校准电路，用于估计第二麦克风对侧音信号的响应，并且根据估计的响应调整侧音电路的系数。

公开(公告)号：US20150358718A1

公开(公告)日：2015-12-10

申请号：US14299836

申请日：2014-06-09

Applicant: Cirrus Logic, Inc.

Inventor： Roy Scott Kaller ,  Aaron Brennan

IPC: H04R1/10

CPC classification number: H04R1/1041 ,  G08G1/096791 ,  H04R1/1083

Abstract: An optical sensor may be integrated into headphones and feedback from the sensor used to adjust an audio output from the headphones. For example, an emergency vehicle traffic preemption signal may be detected by the optical sensor. Optical signals may be processed in a pattern discriminator, which may be integrated with an audio controller integrated circuit (IC). When the signal is detected, the playback of music through the headphones may be muted and/or a noise cancellation function turned off. The optical sensor may be integrated in a music player, a smart phone, a tablet, a cord-mounted module, or the earpieces of the headphones.

Abstract translation: 光学传感器可以集成到耳机中，并且来自用于调节耳机的音频输出的传感器的反馈。 例如，可以由光学传感器检测紧急车辆交通抢占信号。 光信号可以在图案鉴别器中进行处理，其可与音频控制器集成电路（IC）集成。 当检测到信号时，通过耳机播放音乐可能被静音和/或噪声消除功能关闭。 光学传感器可以集成在音乐播放器，智能电话，平板电脑，电线安装模块或耳机的耳机中。