公开(公告)号：US20180152196A1

公开(公告)日：2018-05-31

申请号：US15799812

申请日：2017-10-31

Applicant: Avnera Corporation

Inventor： Jianping Wen ,  Garry Link ,  Wai Laing 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 system can include an analog input port; a digital output port; and a successive approximation register (SAR) analog-to-digital converter (ADC). The SAR ADC 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 are coupled with the analog input port and each have a top plate and a bottom plate; a second plurality of capacitors Cn[0:n] that are coupled with the analog input port and each have a top plate and a bottom plate; and a SAR controller coupled between the output of the voltage comparator Vd and the digital output port.

公开(公告)号：US20180114518A1

公开(公告)日：2018-04-26

申请号：US15792378

申请日：2017-10-24

Applicant: Avnera Corporation

Inventor： James Scanlan

IPC: G10K11/178 ,  H04R1/10 ,  H04R1/40 ,  H04R3/00

CPC classification number: G10K11/178 ,  G10K11/17815 ,  G10K11/17833 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/111 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3046 ,  G10K2210/503 ,  H04R1/1008 ,  H04R1/1041 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/005 ,  H04R29/005 ,  H04R2410/05 ,  H04R2460/01

Abstract: The disclosure includes a headset comprising one or more earphones including one or more sensing components. The headset also includes one or more voice microphones to record a voice signal for voice transmission. The headset also includes a signal processor coupled to the earphones and the voice microphones. The signal processor is configured to employ the sensing components to determine a wearing position of the headset. The signal processor then selects a signal model for noise cancellation. The signal model is selected from a plurality of signal models based on the determined wearing position. The signal processor also applies the selected signal model to mitigate noise from the voice signal prior to voice transmission.

公开(公告)号：US09832012B2

公开(公告)日：2017-11-28

申请号：US15484408

申请日：2017-04-11

Applicant: AVNERA CORPORATION

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

IPC: H04L7/033 ,  H04L7/00

CPC classification number: H04L7/033 ,  G06F13/4295 ,  H04L7/0029 ,  H04L7/02

Abstract: A method can include a digital oversampler oversampling an input data stream, a rate generator selecting a frequency that is not less than an expected frequency of the input data stream, a rate generator clock of the rate generator outputting a clock signal that has the selected frequency, determining whether a sample receiver has received at least one sample of the input data stream from the digital oversampler, and, responsive to a determination that the sample receiver has received at least one sample of the input data stream from the digital oversampler, incrementing a sample counter by each received sample. The method can also include a sample rate converter accumulating samples from the sample receiver at the rate of a “toothless” clock signal, determining whether an output of the sample counter is greater than zero, and, responsive to a determination that the output of the sample counter is greater than zero, an AND gate passing the “toothless” clock signal to the sample rate converter.

公开(公告)号：US20170257699A1

公开(公告)日：2017-09-07

申请号：US15601566

申请日：2017-05-22

Applicant: AVNERA CORPORATION

Inventor： PATRICK A. QUINN ,  ROBERT C. PROEBSTEL ,  MANPREET S. KHAIRA ,  THOMAS IRRGANG ,  NIGEL D. WAITES ,  IAN J. MYLES

IPC: H04R1/32

CPC classification number: H04R1/32 ,  H04R1/026 ,  H04R1/2803 ,  H04R3/005 ,  H04R29/00 ,  H04R2225/33 ,  H04R2400/03 ,  H04R2420/07

Abstract: An acoustic layer is added to a laptop-type personal computing device, comprising: enclosing walls, optionally—one or more microphones, a signal processing device, at least one audio transducer, and an acoustic waveguide. The acoustic layer adjoins one or more internal areas of a laptop-type device. The signal processing device receives an internal signal from a laptop-type device. The signal processing device provides a directive sound enhancement of the audio input signals based on room acoustics, such as reverberation, echo, noise, delay, frequency response, and/or speaker-positional information that is determined by the signal processing device. The audio transducer device generates an audible audio output in response to an audio signal output from the signal processing device. The acoustic waveguide receives the audible audio output and generates an enhanced bass audio output from the acoustic waveguide.

公开(公告)号：US09729960B1

公开(公告)日：2017-08-08

申请号：US14297480

申请日：2014-06-05

Applicant: Avnera Corporation

Inventor： Manpreet Singh Khaira ,  Thomas Irrgang

IPC: H04R1/20 ,  H04R1/28

CPC classification number: H04R1/20 ,  G06F3/021 ,  H04R1/026 ,  H04R1/28 ,  H04R1/2803 ,  H04R1/2857 ,  H04R3/12 ,  H04R5/02 ,  H04R2205/021 ,  H04R2225/33 ,  H04R2400/03 ,  H04R2420/07 ,  H04R2430/01 ,  H04R2499/11 ,  H04S7/301

Abstract: An acoustic layer is added to a keyboard-type device including: enclosing walls, optionally—one or more microphones, a signal processing device, at least one audio transducer, and an acoustic waveguide. The acoustic layer adjoins one or more internal areas of a keyboard-type device. The signal processing device receives an internal signal from an electronic device either through wires or wirelessly. The signal processing device provides a directive sound enhancement of the audio input signals based on room acoustics, such as reverberation, echo, noise, delay, frequency response, and/or speaker-positional information that is determined by the signal processing device. The audio transducer device generates an audible audio output in response to an audio signal output from the signal processing device. The acoustic waveguide receives the audible audio output and generates an enhanced bass audio output from the acoustic waveguide.

公开(公告)号：US09728179B2

公开(公告)日：2017-08-08

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：US09645786B2

公开(公告)日：2017-05-09

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 ,  G06F3/0346

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.

公开(公告)号：US20170085989A1

公开(公告)日：2017-03-23

申请号：US15365795

申请日：2016-11-30

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.

公开(公告)号：US20140369529A1

公开(公告)日：2014-12-18

申请号：US13915805

申请日：2013-06-12

Applicant: Avnera Corporation

Inventor： Patrick Allen Quinn

IPC: H03F3/20

CPC classification number: H03F3/185 ,  H02M3/158 ,  H03F1/0233 ,  H03F3/181 ,  H03F3/217 ,  H03F3/2171 ,  H03F2200/03

Abstract: A device and method are disclosed for modulating a power converter based on an audio signal to directly drive a speaker with a differential audio output signal. A first modulation signal and a second modulation signal are generated based on an input audio signal so that the first and second modulation signals are complementary signals to each other. In one embodiment, a feedback signal, such as an acoustic feedback signal from the speaker, is also used to generate the first and second modulation signals. A power supply voltage is modulated with the first modulation signal to generate a first voltage signal. The power supply voltage is also modulated with the second modulation signal to generate a second voltage signal. The first and second voltage signals form a differential audio signal that is used to drive the speaker. Alternatively, the power converter can drive a speaker with a single-ended output signal.

Abstract translation: 公开了一种用于基于音频信号调制功率转换器以直接驱动具有差分音频输出信号的扬声器的装置和方法。 基于输入音频信号生成第一调制信号和第二调制信号，使得第一和第二调制信号彼此互补。 在一个实施例中，诸如来自扬声器的声反馈信号的反馈信号也用于产生第一和第二调制信号。 用第一调制信号调制电源电压以产生第一电压信号。 电源电压也用第二调制信号进行调制以产生第二电压信号。 第一和第二电压信号形成用于驱动扬声器的差分音频信号。 或者，功率转换器可以驱动具有单端输出信号的扬声器。

公开(公告)号：US20140270028A1

公开(公告)日：2014-09-18

申请号：US13800557

申请日：2013-03-13

Applicant: Avnera Corporation

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

IPC: H04L7/027

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。