公开(公告)号：US20170126240A1

公开(公告)日：2017-05-04

申请号：US15391573

申请日：2016-12-27

Applicant: Avnera Corporation

Inventor： Jianping Wen ,  Garry Link ,  Wai Lee

IPC: H03M1/10 ,  H03M1/38

CPC classification number: H03M1/1009 ,  H03M1/0682 ,  H03M1/0692 ,  H03M1/38 ,  H03M1/403 ,  H03M1/462 ,  H03M1/468 ,  H03M1/804

Abstract: A circuit can include a voltage comparator Vd having a first input, a second input, and an output; a first plurality of capacitors Cp[0:n] that each have a top plate and a bottom plate, wherein each top plate is electrically coupled with the first input of the voltage comparator Vd, wherein each top plate is also switchably electrically coupled with a common mode voltage Vcm, and wherein each bottom plate is switchably electrically coupled between a first input voltage Vinp, a reference voltage Vref, the common mode voltage Vcm, and ground; a second plurality of capacitors Cn[0:n] that each have a top plate and a bottom plate, wherein each top plate is electrically coupled with the second input of the voltage comparator Vd, wherein each top plate is also switchably electrically coupled with the common mode voltage Vcm, and wherein each bottom plate is switchably electrically coupled between a second input voltage Vinn, the reference voltage Vref, the common mode voltage Vcm, and ground; and a successive approximation register (SAR) controller coupled with the output of the voltage comparator Vd.

公开(公告)号：US20170110106A1

公开(公告)日：2017-04-20

申请号：US14885876

申请日：2015-10-16

Applicant: AVNERA CORPORATION

Inventor： AMIT KUMAR ,  THOMAS IRRGANG ,  SHANKAR RATHOUD ,  ERIC SORENSEN

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K11/17813 ,  G10K11/1788 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/3025 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3045 ,  G10K2210/3055 ,  G10K2210/3056 ,  G10K2210/3214 ,  G10K2210/504 ,  H04R1/1083 ,  H04R29/00 ,  H04R2460/01

Abstract: A method of calibrating an earphone may include: securing an ANC earphone to a calibration fixture, the calibration fixture including an ear model configured to support the ANC earphone, the ear model having an ear canal configured to anatomically resemble a human ear canal and a concha configured to anatomically resemble a human ear concha, the ear canal extending from the concha to an inner end of the ear canal; generating, with the ANC earphone, an audio signal based on a reference tone; determining a characteristic of the audio signal; comparing the characteristic of the audio signal to a previously determined reference characteristic; and adjusting a gain value of the ANC earphone based on the comparing. Additional methods and apparatus are also disclosed.

公开(公告)号：US20170110105A1

公开(公告)日：2017-04-20

申请号：US14885639

申请日：2015-10-16

Applicant: AVNERA CORPORATION

Inventor： AMIT KUMAR ,  ERIC SORENSEN

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K2210/1081 ,  G10K2210/3014 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028

Abstract: A system including an automatic noise canceling (ANC) headphone and a processor. The ANC headphone has a microphone configured to generate a microphone signal and at least two non-zero ANC gain levels. The processor is configured to receive the microphone signal, determine a characteristic of the microphone signal, identify a revised ANC level from the ANC gain levels based on a comparison of the characteristic to at least one threshold, and output a signal corresponding to the revised ANC level. Methods are also disclosed.

公开(公告)号：US09628106B1

公开(公告)日：2017-04-18

申请号：US15007054

申请日：2016-01-26

Applicant: Avnera Corporation

Inventor： Jianping Wen ,  Ali Hadiashar ,  Eric King ,  David Entrikin ,  Wai Lang Lee

IPC: H03M3/00

CPC classification number: H03M3/496 ,  H03M3/376 ,  H03M3/438

Abstract: Embodiments of the invention include an oversampling Analog to Digital Converter that uses uneven non-overlapping clock phases to reduce switched capacitor circuit power consumption. A return-to-zero sub phase of one of the clock phases may also be used for feedback reference capacitors. A delay lock loop may be combined with the non-overlapping clock phase generator to control accurate timing.

公开(公告)号：US09544690B2

公开(公告)日：2017-01-10

申请号：US14550545

申请日：2014-11-21

Applicant: Avnera Corporation

Inventor： Theodore Hetke ,  John Speth

IPC: H04R3/12 ,  H04W4/00

CPC classification number: H04R3/12 ,  H04R2420/07 ,  H04R2420/09 ,  H04R2430/01 ,  H04W4/80

Abstract: A method for forming a complete ring network of a plurality of Bluetooth® speakers, the method including populating a configurable speaker register of each of the plurality of Bluetooth® speakers with an address of an upstream Bluetooth® speaker that is in the plurality of Bluetooth® speakers, populating the configurable speaker register of each of the plurality of Bluetooth® speakers with an address of a downstream Bluetooth® speaker that is in the plurality of Bluetooth® speakers, and coupling an audio source to one Bluetooth® speaker of the plurality of Bluetooth® speakers.

Abstract translation: 一种用于形成多个蓝牙扬声器的完整环形网络的方法，所述方法包括用多个蓝牙®扬声器中的上游蓝牙扬声器的地址填充多个蓝牙扬声器中的每一个的可配置扬声器寄存器 扬声器，用多个Bluetooth®扬声器中的下游蓝牙扬声器的地址填充多个蓝牙扬声器中的每一个的可配置扬声器寄存器，并将音频源耦合到多个蓝牙的蓝牙扬声器 ®扬声器

公开(公告)号：US09531400B1

公开(公告)日：2016-12-27

申请号：US14932798

申请日：2015-11-04

Applicant: AVNERA CORPORATION

Inventor： Jianping Wen ,  Garry Link ,  Wai Lee

IPC: H03M1/06 ,  H03M1/40 ,  H03M1/44 ,  H03M1/46

CPC classification number: H03M1/1009 ,  H03M1/0682 ,  H03M1/0692 ,  H03M1/38 ,  H03M1/403 ,  H03M1/462 ,  H03M1/468 ,  H03M1/804

Abstract: A circuit can include a voltage comparator Vd having a first input, a second input, and an output; a first plurality of capacitors Cp[0:n] that each have a top plate and a bottom plate, wherein each top plate is electrically coupled with the first input of the voltage comparator Vd, wherein each top plate is also switchably electrically coupled with a common mode voltage Vcm, and wherein each bottom plate is switchably electrically coupled between a first input voltage Vinp, a reference voltage Vref, the common mode voltage Vcm, and ground; a second plurality of capacitors Cn[0:n] that each have a top plate and a bottom plate, wherein each top plate is electrically coupled with the second input of the voltage comparator Vd, wherein each top plate is also switchably electrically coupled with the common mode voltage Vcm, and wherein each bottom plate is switchably electrically coupled between a second input voltage Vinn, the reference voltage Vref, the common mode voltage Vcm, and ground; and a successive approximation register (SAR) controller coupled with the output of the voltage comparator Vd.

Abstract translation: 电路可以包括具有第一输入，第二输入和输出的电压比较器Vd; 具有顶板和底板的第一多个电容器Cp [0：n]，其中每个顶板与电压比较器Vd的第一输入电耦合，其中每个顶板也可切换地电耦合到 共模电压Vcm，并且其中每个底板可切换地电耦合在第一输入电压Vinp，参考电压Vref，共模电压Vcm和地之间; 分别具有顶板和底板的第二多个电容器Cn [0：n]，其中每个顶板与电压比较器Vd的第二输入电耦合，其中每个顶板也可切换地电耦合到 共模电压Vcm，并且其中每个底板可切换地电耦合在第二输入电压Vinn，参考电压Vref，共模电压Vcm和地之间; 以及与电压比较器Vd的输出耦合的逐次逼近寄存器（SAR）控制器。

公开(公告)号：US20160150320A1

公开(公告)日：2016-05-26

申请号：US14550545

申请日：2014-11-21

Applicant: Avnera Corporation

Inventor： Theodore Hetke ,  John Speth

IPC: H04R3/12

CPC classification number: H04R3/12 ,  H04R2420/07 ,  H04R2420/09 ,  H04R2430/01 ,  H04W4/80

Abstract: A method for forming a complete ring network of a plurality of Bluetooth® speakers, the method including populating a configurable speaker register of each of the plurality of Bluetooth® speakers with an address of an upstream Bluetooth® speaker that is in the plurality of Bluetooth® speakers, populating the configurable speaker register of each of the plurality of Bluetooth® speakers with an address of a downstream Bluetooth® speaker that is in the plurality of Bluetooth® speakers, and coupling an audio source to one Bluetooth® speaker of the plurality of Bluetooth® speakers.

Abstract translation: 一种用于形成多个蓝牙扬声器的完整环形网络的方法，所述方法包括用多个蓝牙®扬声器中的上游蓝牙扬声器的地址填充多个蓝牙扬声器中的每一个的可配置扬声器寄存器 扬声器，用多个Bluetooth®扬声器中的下游蓝牙扬声器的地址填充多个蓝牙扬声器中的每一个的可配置扬声器寄存器，并将音频源耦合到多个蓝牙的蓝牙扬声器 ®扬声器

公开(公告)号：US20150195646A1

公开(公告)日：2015-07-09

申请号：US14148533

申请日：2014-01-06

Applicant: Avnera Corporation

Inventor： Amit Kumar ,  Wai Lang Lee ,  Jianping Wen

IPC: H04R3/00

CPC classification number: G10K11/178 ,  G10K11/17853 ,  G10K11/17873 ,  G10K11/17875 ,  G10K11/17879 ,  G10K2210/3016 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028 ,  H04R2460/01

Abstract: A programmable Active Noise Compensation (ANC) system for an audio input includes a parameter store structured to store a number of various filter parameters. A mode of operation is selected that represents the type of environment the ANC system is operating in—feed-forward, feed-back, or combined feed-forward and feedback. Different filter parameters are retrieved from the parameter store based on the selected mode and desired operation. Audio inputs are sampled at a relatively high sample rate that matches inputs from a feed-forward and feedback microphone that may be present in the system. Parameters and instructions may be changed in the system responsive to changing conditions of the compensation system.

Abstract translation: 用于音频输入的可编程有源噪声补偿（ANC）系统包括结构化以存储多个滤波器参数的参数存储器。 选择一种操作模式，其表示ANC系统正在进行前馈，反馈或组合的前馈和反馈的环境类型。 基于所选择的模式和期望的操作，从参数存储器检索不同的滤波器参数。 音频输入以相对高的采样率进行采样，该采样率与可能存在于系统中的前馈和反馈麦克风的输入相匹配。 响应于补偿系统的变化条件，可以在系统中改变参数和指令。

公开(公告)号：US20150193193A1

公开(公告)日：2015-07-09

申请号：US14249696

申请日：2014-04-10

Applicant: Avnera Corporation

Inventor： Manpreet S. Khaira ,  Shawn O'Connor ,  Frank Prestrelski ,  Patrick Allen Quinn ,  Richard Andrew Sorensen ,  Eric Sorensen

IPC: G06F3/16

CPC classification number: G06F3/162 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/0346 ,  G06F3/0414 ,  G06F3/165 ,  G06F3/167 ,  G06F2200/1636 ,  H04R2201/02 ,  H04R2430/01

Abstract: A tabletop speaker system includes an amplifier, proximity and acceleration detectors, and a processor. The processor is operatively coupled to receive signals from the proximity and accelerometer detectors, and in response to the proximity and acceleration signals, activate various functions local to the tabletop speaker system to operate and control various behaviors or features of the tabletop speaker system. In this way, the tabletop speaker system can respond to user gestures for a very natural control interface.

Abstract translation: 台式扬声器系统包括放大器，接近和加速度检测器以及处理器。 处理器可操作地耦合以从接近和加速度计检测器接收信号，并且响应于接近和加速度信号，激活桌面扬声器系统的局部的各种功能来操作和控制台式扬声器系统的各种行为或特征。 以这种方式，桌面扬声器系统可以响应用户手势进行非常自然的控制界面。

公开(公告)号：US08848849B1

公开(公告)日：2014-09-30

申请号：US13800557

申请日：2013-03-13

Applicant: Avnera Corporation

Inventor： Samuel J. Peters ,  Eric P. Etheridge ,  Victor Lee Hanson ,  Alexander C. Stange

IPC: H04L7/02

CPC classification number: H04L7/027 ,  G06F13/4295 ,  H04L7/0029 ,  H04L7/02

Abstract: A system and a technique for recovering data from an input data stream without synchronization of an input sampling circuit to the input data stream determines a count of incoming samples (or frames) without generating a signal that is frequency-locked to the input data stream. A first clock is generated comprising a frequency that is greater than or equal to an expected frequency of the input data stream. A sample count is incremented in response to a sample received in the input data stream, and is decremented in response to a second clock signal. The second clock is generated the first clock signal by passing the first clock signal if the sample count of the sample counter does not equal a predetermined sample count value and by blocking the first clock signal if the sample count equals the predetermined sample count value.

Abstract translation: 用于从输入数据流中恢复数据而不输入输入采样电路与输入数据流的同步的系统和技术确定输入采样（或帧）的计数，而不产生频率锁定到输入数据流的信号。 产生包括大于或等于输入数据流的预期频率的频率的第一时钟。 响应于在输入数据流中接收到的采样，采样计数递增，并且响应于第二时钟信号递减。 如果采样计数器的采样计数不等于预定采样计数值，并且如果采样计数等于预定采样计数值则阻塞第一时钟信号，则通过传递第一时钟信号来产生第二时钟信号。