公开(公告)号：US20190333506A1

公开(公告)日：2019-10-31

申请号：US16399814

申请日：2019-04-30

Applicant: AVNERA CORPORATION

Inventor： Christopher James O'Connor

IPC: G10L15/22 ,  G06N3/04 ,  G06F17/16 ,  G06F17/14 ,  G10L15/16

Abstract: A personal interactive speaker device can include a housing, a primary processor within the housing and configured to control the personal interactive speaker device and operate in a low-power state, an input device to receive an input, a listening sub-system within the housing and configured to convert the input into an output signal, and a neural net processor within the housing and configured to receive the output signal from the listening sub-system and determine whether to generate a wake signal based on the received output signal.

公开(公告)号：US20190245551A1

公开(公告)日：2019-08-08

申请号：US16386188

申请日：2019-04-16

Applicant: Avnera Corporation

Inventor： Jianping Wen ,  Gordon Ueki

IPC: H03M1/10

CPC classification number: H03M1/1009 ,  H03M1/1038 ,  H03M1/462 ,  H03M1/466

Abstract: The disclosure includes an analog to digital converter (ADC) comprising a successive approximation register (SAR) unit including a capacitive network to take a sample of an analog signal and a comparator to approximate a digital value based on the analog signal sample via successive comparison. The disclosure also includes a programmable sequencer. The sequencer includes a control memory containing control signal states indicating control signals to operate the SAR unit. The sequencer also includes a program memory including sequence instructions defining a duty cycle for the SAR unit by referencing the control signal states in the control memory. The sequencer also includes a processing circuit to apply control signals according to the control signal states in an order defined by the sequence instructions to manage a sequence of operations at the SAR unit according to the duty cycle to control the ADC.

公开(公告)号：US20190173482A1

公开(公告)日：2019-06-06

申请号：US16173398

申请日：2018-10-29

Applicant: Avnera Corporation

Inventor： Wai Lee ,  Jianping Wen ,  Garry N. Link

IPC: H03M1/46 ,  H03M1/10 ,  H03M1/44

CPC classification number: H03M1/462 ,  H03M1/1033 ,  H03M1/188 ,  H03M1/447 ,  H03M1/468

Abstract: The disclosure includes a mechanism for mitigating electrical current leakage in a Successive Approximation Register (SAR) Analog to Digital Converter (ADC) by using a Flash ADC in conjunction with the SAR ADC. A sequence controller in the SAR ADC uses the output of the Flash ADC to control a switch array. Depending on the output of the Flash ADC, the sequence controller can control the switch array to couple at least one capacitor in the capacitor network of the SAR ADC to a voltage that reduces charge leakage in the SAR ADC. The voltage may be a pre-defined positive or negative reference voltage.

公开(公告)号：US20190146746A1

公开(公告)日：2019-05-16

申请号：US16159333

申请日：2018-10-12

Applicant: Avnera Corporation

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

IPC: G06F3/16 ,  G06F3/01 ,  G06F3/041 ,  G06F3/03

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 speaker system includes a case, an audio input, speakers, an accelerometer, and a computer processor. The audio input is structured to receive a program audio signal from an audio device. The speakers are configured to play an audio output based on the program audio signal, the audio output causing a vibration of the case. The accelerometer is configured to detect the vibration of the case as well as a user tap on the case. The computer processor is configured to identify a user gesture that includes the tap on the case, to identify the tap apart from the case vibration by processing the detected vibration of the case and the detected user tap on the case based on information from the program audio signal to separate the detected user tap from the detected vibration, and to commence a particular function associated with the user gesture.

公开(公告)号：US10261537B2

公开(公告)日：2019-04-16

申请号：US15955620

申请日：2018-04-17

Applicant: AVNERA CORPORATION

Inventor： Christopher D. Nilson

IPC: G05F1/46 ,  G05F3/16 ,  H03K17/687

Abstract: A start-up circuit for a bandgap reference voltage generator circuit, including a first native transistor with a drain connected to a supply voltage of the bandgap reference voltage generator circuit and a source connected to a gate of the first native transistor; a low voltage transistor with a source connected to ground, a drain connected to the source of the first native transistor, and a gate connected to a resistor; a second native transistor with a source connected to the resistor, a gate connected to the source of the first native transistor; a high voltage transistor with a drain connected to a drain of the second native transistor and a source connected to the supply voltage; and a transistor with a gate connected to the gate of the first high voltage transistor and a drain which provides a start-up current for the bandgap reference voltage generator circuit.

公开(公告)号：US10182160B2

公开(公告)日：2019-01-15

申请号：US15354909

申请日：2016-11-17

Applicant: AVNERA CORPORATION

Inventor： Eric Sorensen ,  Thomas Irrgang ,  Mike Wurtz

IPC: H04M9/08 ,  H04M1/60 ,  H04M1/62 ,  H04M1/725

Abstract: A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.

公开(公告)号：US10177779B2

公开(公告)日：2019-01-08

申请号：US15849227

申请日：2017-12-20

Applicant: Avnera Corporation

Inventor： Wai Lee ,  Garry N. Link ,  Jianping Wen

IPC: H03M1/12 ,  H03M1/46 ,  H03M1/44 ,  H03M1/06 ,  H03M1/08

Abstract: The disclosure includes an analog to digital converter (ADC). The ADC includes a comparator to compare sample values of an analog signal in an analog domain to reference values to determine digital values in a digital domain. The digital values correspond to the analog signal and may be determined according to successive approximation. The ADC also includes chop switches to modulate the analog signal to increase a frequency of flicker noise in the analog domain. The ADC also includes an un-chop switch to demodulate the digital values in the digital domain prior filtration of the flicker noise by a digital filter.

公开(公告)号：US20180295445A1

公开(公告)日：2018-10-11

申请号：US16006760

申请日：2018-06-12

Applicant: Avnera Corporation

Inventor： Theodore Hetke ,  John Speth

IPC: H04R3/12 ,  H04W4/80

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

Abstract: A method for re-forming a complete ring network of a plurality of Bluetooth® speakers, after a speaker has left an original ring of speakers, the method including detecting that the speaker has left the ring, and reestablishing the ring without the departed speaker. The detection may include a timeout detection if the speaker left without notice, or include receiving notice that the speaker intends to leave.

公开(公告)号：US10096312B2

公开(公告)日：2018-10-09

申请号：US15683592

申请日：2017-08-22

Applicant: Avnera Corporation

Inventor： Amit Kumar ,  Wai Laing Lee ,  Jianping Wen

IPC: H03B29/00 ,  G10K11/178

Abstract: An adaptive noise canceling system can include a noise cancellation processor having an audio input for receiving an input audio signal, a microphone input structured to receive one or more microphone signals from a monitored environment, and a filter processor structured to produce a filtering function based on one or more filter parameters. The system can also include an adaptivity processor structured to change the one or more filter parameters in the noise cancellation processor based on a changing operating environment of the adaptive noise canceling system.

公开(公告)号：US20180278262A1

公开(公告)日：2018-09-27

申请号：US15991871

申请日：2018-05-29

Applicant: Avnera Corporation

Inventor： Jianping Wen ,  Gordon Ueki

IPC: H03M1/10 ,  H03M1/46

CPC classification number: H03M1/1009 ,  H03M1/1038 ,  H03M1/462 ,  H03M1/466

Abstract: The disclosure includes an analog to digital converter (ADC) comprising a successive approximation register (SAR) unit including a capacitive network to take a sample of an analog signal and a comparator to approximate a digital value based on the analog signal sample via successive comparison. The disclosure also includes a programmable sequencer. The sequencer includes a control memory containing control signal states indicating control signals to operate the SAR unit. The sequencer also includes a program memory including sequence instructions defining a duty cycle for the SAR unit by referencing the control signal states in the control memory. The sequencer also includes a processing circuit to apply control signals according to the control signal states in an order defined by the sequence instructions to manage a sequence of operations at the SAR unit according to the duty cycle to control the ADC.