公开(公告)号：WO2016053715A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/051686

申请日：2015-09-23

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： NIELSEN, John ,  MORTENSEN, Anders Sava ,  LARSEN, Rene Rye ,  POPPER, Robert ,  NANDY, Dibyendu ,  MIDTGAARD, Jacob

IPC: H04R19/04 ,  H04R3/06

CPC classification number: H04R23/00 ,  B81B2201/0257 ,  H04R1/005 ,  H04R1/04 ,  H04R3/007 ,  H04R19/005 ,  H04R2201/003

Abstract: A microphone includes a base, a micro electro mechanical system (MEMS) device disposed on the base, and a front end processing apparatus disposed on the base and coupled to the MEMS device, the front end processing apparatus being configured to convert analog signals received from the MEMS device into digital signals. The microphone also includes a DSP apparatus, the DSP apparatus being a digital programmed device with a computer memory, the DSP apparatus configured to process the digital signals received from the front end processing apparatus. The MEMS device, the front end processing apparatus, and DSP apparatus are enclosed within a single microphone enclosure or assembly. During operation the DSP apparatus generates DSP noise. The DSP apparatus includes a noise reduction structure that substantially prevents the DSP noise from reaching or interfering with the operation of the MEMS device or the front end processing apparatus.

Abstract translation: 麦克风包括基座，设置在基座上的微电子机械系统（MEMS）装置，以及设置在基座上并耦合到MEMS装置的前端处理装置，前端处理装置被配置为将从 将MEMS器件转换为数字信号。 麦克风还包括DSP装置，DSP装置是具有计算机存储器的数字编程装置，DSP装置被配置为处理从前端处理装置接收的数字信号。 MEMS器件，前端处理设备和DSP设备被封装在单个麦克风外壳或组件内。 在操作过程中DSP设备产生DSP噪声。 DSP装置包括基本上防止DSP噪声到达或干扰MEMS装置或前端处理装置的操作的噪声降低结构。

公开(公告)号：WO2015112498A1

公开(公告)日：2015-07-30

申请号：PCT/US2015/012045

申请日：2015-01-20

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： VOLK, Martin ,  POPPER, Robert ,  QUTUB, Sarmad

IPC: H04R3/00 ,  H04R19/04

CPC classification number: H04R3/005 ,  H04R2410/03

Abstract: An acoustic apparatus includes a first acoustic sensor that has a first sensitivity and a first output signal; a second acoustic sensor that has a sensitivity, the second sensitivity is less than the first sensitivity, and the second acoustic sensor has a second output signal; and a blending module that is coupled to the first acoustic sensor and the second acoustic sensor. The blending module is configured to selectively blend the first output signal and the second output signal to create a blended output signal.

Abstract translation: 声学装置包括具有第一灵敏度和第一输出信号的第一声传感器; 具有灵敏度的第二声传感器，所述第二灵敏度小于所述第一灵敏度，所述第二声传感器具有第二输出信号; 以及耦合到第一声传感器和第二声传感器的混合模块。 混合模块被配置为选择性地混合第一输出信号和第二输出信号以产生混合输出信号。

公开(公告)号：WO2016054366A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/053476

申请日：2015-10-01

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： QUTUB, Sarmad ,  KHAMHARN, Oddy ,  NANDY, Dibyendu ,  VOLK, Martin ,  POPPER, Robert

IPC: H04R3/06 ,  H04R19/04

CPC classification number: G08C23/02 ,  G06F1/3206 ,  G06F1/3215 ,  G06F1/3234

Abstract: In accordance with one aspect of the disclosure, a method of operating an acoustic system including detecting an ultrasonic sound signal and pattern matching the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal. The method includes sending a signal to at least one electronic component when the received ultrasonic sound signal is the desired ultrasonic sound signal. The method includes operating the microphone in a lower power state when the received ultrasonic sound signal is not the desired ultrasonic sound signal.

Abstract translation: 根据本公开的一个方面，一种操作声学系统的方法，包括检测超声波信号和匹配所接收的超声波信号的模式，以确定所接收的超声波信号何时是期望的超声波信号。 该方法包括当所接收的超声波信号是期望的超声波信号时，向至少一个电子部件发送信号。 该方法包括当所接收的超声波信号不是期望的超声波信号时，将麦克风操作在较低功率状态。

公开(公告)号：WO2016133722A1

公开(公告)日：2016-08-25

申请号：PCT/US2016/016706

申请日：2016-02-05

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： POPPER, Robert ,  NANDY, Dibyendu ,  RAGHUVIR, Ramanujapuram ,  QUTUB, Sarmad ,  KHAMHARN, Oddy

IPC: H04R19/04 ,  H04R3/00

CPC classification number: H04R1/04 ,  B81B7/008 ,  B81B2201/0257 ,  H04R3/005 ,  H04R19/005 ,  H04R2201/003 ,  H04R2420/07

Abstract: A microphone system includes a first transducer deployed at a first microphone; a second transducer deployed at a second microphone, the first microphone being physically distinct from the second microphone; a decimator deployed at the second microphone that receives first pulse density modulation (PDM) data from the first transducer and second PDM data from the second transducer and decimates and combines the first PDM data and the second PDM data into combined pulse code modulation (PCM) data; and an interpolator deployed at the second microphone for converting the combined PCM data to combined PDM data, and transmits the combined PDM data to an external processing device.

Abstract translation: 麦克风系统包括在第一麦克风处部署的第一换能器; 第二传感器部署在第二麦克风处，第一麦克风在物理上不同于第二麦克风; 在第二麦克风处部署的抽取器，其从第一传感器接收第一脉冲密度调制（PDM）数据和从第二传感器接收第二PDM数据，并将第一PDM数据和第二PDM数据抽取并组合成组合的脉码调制（PCM） 数据; 以及部署在第二麦克风处的内插器，用于将组合的PCM数据转换成组合的PDM数据，并将组合的PDM数据发送到外部处理装置。

公开(公告)号：WO2016118480A1

公开(公告)日：2016-07-28

申请号：PCT/US2016/013859

申请日：2016-01-19

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： QUTUB, Sarmad ,  POPPER, Robert ,  KHAMHARN, Oddy

IPC: H04R19/00 ,  H04R3/06

CPC classification number: G06F3/0604 ,  G06F3/0647 ,  G06F3/0673 ,  G06F13/28 ,  H04R19/01 ,  H04R19/04 ,  Y02D10/14

Abstract: An analog signal is received from an acoustic transducer. The analog signal is converted into digital data. A determination is made as to whether acoustic activity exists within the digital data. The digital data is stored in a temporary memory storage device and a count is maintained of an amount of digital data in the temporary memory storage device. When the count exceeds a predetermined threshold, at least some of the digital data is transmitted from the temporary memory storage device to a processor.

Abstract translation: 从声换能器接收模拟信号。 模拟信号转换为数字数据。 确定数字数据中是否存在声学活动。 数字数据存储在临时存储器存储设备中，并且在临时存储器存储设备中保持数字数据量的计数。 当计数超过预定阈值时，数字数据中的至少一些从临时存储器存储装置发送到处理器。