公开(公告)号：US11778398B2

公开(公告)日：2023-10-03

申请号：US18058232

申请日：2022-11-22

Applicant: Magic Leap, Inc.

Inventor： Mathieu Parvaix ,  Jean-Marc Jot ,  Colby Nelson Leider

IPC: H04R3/00 ,  H04R29/00 ,  H04R1/08

CPC classification number: H04R29/00 ,  H04R1/08 ,  H04R3/00

Abstract: Examples of the disclosure describe systems and methods for estimating acoustic properties of an environment. In an example method, a first audio signal is received via a microphone of a wearable head device. An envelope of the first audio signal is determined, and a first reverberation time is estimated based on the envelope of the first audio signal. A difference between the first reverberation time and a second reverberation time is determined. A change in the environment is determined based on the difference between the first reverberation time and the second reverberation time. A second audio signal is presented via a speaker of a wearable head device, wherein the second audio signal is based on the second reverberation time.

公开(公告)号：US11778371B2

公开(公告)日：2023-10-03

申请号：US17655006

申请日：2022-03-16

Applicant: BITwave Pte Ltd

Inventor： Siew Kok Hui ,  Au Ming ,  Ng Jiefeng Bryan

IPC: H04R1/46 ,  H04B1/3827 ,  H04R1/08 ,  H04R1/10

CPC classification number: H04R1/46 ,  H04B1/385 ,  H04R1/083 ,  H04R1/1075 ,  H04B2001/3866 ,  H04R2201/10 ,  H04R2460/13

Abstract: An apparatus including a multi-sensor array having a bone conduction microphone, air conduction microphone, signal processor, and speakers; a signal processor that processes vibration signal data and tonal signal data to produce combined data representative of the vocal communication to substantially reduce or eliminate noise; and a method of applying a signals optimized combination algorithm to optimize the output by intelligently combining the outputs from the two different types of sensors for both working in a noisy environment and quiet environment.

公开(公告)号：US11778357B2

公开(公告)日：2023-10-03

申请号：US16038403

申请日：2018-07-18

Applicant: Nicolas Casati ,  Francois Casati

Inventor： Nicolas Casati ,  Francois Casati

IPC: H04R1/08 ,  H04R1/34 ,  H04M1/19

CPC classification number: H04R1/083 ,  H04M1/19 ,  H04R1/342

Abstract: The present invention employs a privacy mask, with elongated mouth-piece, having a semi-circular opening for a user's mouth and a second opening coupled with a transfer tube in which a user's voice travels until it reaches the receiver of a mobile phone or computer, inserted in a head-set equipped with ear-pieces. The present invention is a telecommunication device allowing both speaking and listening with privacy, since it prevents both the user's voice to spread in the surrounding and outside noises to disturb the communication.

公开(公告)号：US20230306952A1

公开(公告)日：2023-09-28

申请号：US18126738

申请日：2023-03-27

Applicant: Eric Haseltine

Inventor： Eric Haseltine

IPC: G10K11/24 ,  H04R3/00 ,  H04R1/08 ,  H04R1/46 ,  H04R17/02 ,  H04R1/02

CPC classification number: G10K11/24 ,  H04R3/00 ,  H04R1/08 ,  H04R1/46 ,  H04R17/02 ,  H04R1/025

Abstract: A system is provided for communication through or along a barrier. The system includes a transmitter unit for transmitting a signal comprising a transmitter housing, a transmitter fixation element for fixing a first side of the transmitter housing against a barrier, an exciter embedded in or protruding from the first side of the transmitter housing, such that the exciter is applied against the barrier by the fixation element, and an audio input. The transmitter further includes circuitry for driving the exciter based on a signal received at the audio input. The system further includes a receiver unit for receiving a signal comprising a receiver housing, a receiver fixation element for fixing a first side of the receiver housing against the barrier, a vibration sensor for detecting vibrations generated by the exciter, an audio output, and circuitry for driving the audio output based on a signal detected by the vibration sensor.

公开(公告)号：US20230300538A1

公开(公告)日：2023-09-21

申请号：US18125605

申请日：2023-03-23

Applicant: Expensify, Inc.

Inventor： David M. Barrett ,  Robert Chen

IPC: H04R19/04 ,  G10L15/22 ,  H04R1/08 ,  H04R1/14 ,  H04R1/10

CPC classification number: H04R19/04 ,  G10L15/22 ,  H04R1/08 ,  H04R1/14 ,  H04R1/1058 ,  H04R2460/13 ,  G10L2015/223 ,  H04R2201/003

Abstract: An interactive system can utilize microtechnology (e.g., a micro-electromechanical system (MEMS)), such as miniaturized microphone (e.g., a bone-conducting microphone), audio output device, microprocessor, and signal conversion and propagation means to create a personal area network (PAN) for a user. The system can include a voice input device (e.g., worn on one or more teeth of the user) that outputs a near-field magnetic induction (NFMI) signal based on a whisper input by the user. The NFMI signal is either detected by the user's mobile device, or converted into a wireless signal (e.g., a Bluetooth RF signal) detectable by the user's mobile device, for receiving voice commands (e.g., to provide personal assistant services) via a designated application running on the mobile device.

公开(公告)号：US20230300526A1

公开(公告)日：2023-09-21

申请号：US18164052

申请日：2023-02-03

Applicant: GN Audio A/S

Inventor： Clément LAROCHE ,  Pejman MOWLAEE ,  Rasmus Kongsgaard OLSSON ,  Michael Sødal SCHWARTZ

IPC: H04R3/00 ,  G10L25/78 ,  G10L25/60 ,  H04R1/08 ,  H04R1/40 ,  H04R29/00

CPC classification number: H04R3/005 ,  G10L25/78 ,  G10L25/60 ,  H04R1/08 ,  H04R1/406 ,  H04R29/005 ,  H04R2201/401

Abstract: The present disclosure relates to a microphone apparatus and an associated computer implemented method. The microphone apparatus comprising a main microphone array, an adaptive beamformer, a fixed beamformer, and an analyzer. The analyzer is configured to determine a first relative score based on the output of the fixed beamformer and the adaptive beamformer. The first relative score indicating a difference between the adaptive beamformer and the fixed beamformer.

公开(公告)号：US20230292056A1

公开(公告)日：2023-09-14

申请号：US18044456

申请日：2021-09-21

Applicant: FREEDMAN ELECTRONICS PTY LIMITED

Inventor： Peter FREEDMAN ,  Pieter SCHILLEBEECKX

IPC: H04R19/01 ,  H04R3/00 ,  H04R1/04 ,  H04R1/08 ,  H04R7/04 ,  H03K17/687

CPC classification number: H04R19/016 ,  H04R3/00 ,  H04R1/04 ,  H04R1/086 ,  H04R7/04 ,  H03K17/6871 ,  H04R2410/03

Abstract: The present invention relates generally to the field of electret capsule, and more particularly to a circuit configuration of an impedance converter integrated in an electret capsule such as for use in condenser microphones. The electret capsule of a microphone may include a gate biasing field effect transistor (FET) to facilitate biasing of a low noise FET. Advantageously, the use of low noise FET in the electret capsule of a microphone provides for a reduced cost, while achieving lower self-noise.

公开(公告)号：US20230292025A1

公开(公告)日：2023-09-14

申请号：US17726532

申请日：2022-04-22

Applicant: Merry Electronics(Shenzhen) Co., Ltd.

Inventor： Ming-Xue Cai

IPC: H04R1/10 ,  H04R1/08

CPC classification number: H04R1/1008 ,  H04R1/08 ,  H04R1/1058

Abstract: An earmuff module of a headphone includes a back cover, a sound-receiving hole, a microphone assembly, and an earmuff. The back cover includes a peripheral side wall. The sound-receiving hole is formed on the peripheral side wall of the back cover and penetrates through the peripheral side wall. The microphone assembly is disposed on an inner surface of the peripheral side wall and corresponds to the sound-receiving hole, and is acoustically connected with the sound-receiving hole. The earmuff is detachably assembled on the back cover, and the earmuff includes a foam and a wrapping cover. The wrapping cover includes an extension part and a covering part. The covering part covers the foam. The extension part extends from one end of the covering part to an outer surface of the peripheral side wall and covers the sound-receiving hole. The microphone assembly is located within a range covered by the extension part.

公开(公告)号：US11754457B2

公开(公告)日：2023-09-12

申请号：US17179553

申请日：2021-02-19

Applicant: AMOGREENTECH CO., LTD.

Inventor： In-Yong Seo

IPC: G01L19/14 ,  B32B3/26 ,  B32B7/12 ,  B32B27/08 ,  H04M1/03 ,  H04R1/44 ,  H04R1/02 ,  H04M1/18 ,  H04R1/08

CPC classification number: G01L19/145 ,  B32B3/26 ,  B32B7/12 ,  B32B27/08 ,  H04M1/03 ,  H04M1/18 ,  H04R1/02 ,  H04R1/08 ,  H04R1/44 ,  B32B2307/724 ,  B32B2307/7265

Abstract: A breathable waterproof sheet, which interposes a support layer having a plurality of holes formed therein, thus preventing a waterproof air-permeable layer from colliding with a pressure sensor by a water pressure. The breathable waterproof sheet includes a waterproof air-permeable layer formed of a film having elasticity, an adhesive layer having one surface adhered to one surface of the waterproof air-permeable layer, and a support layer having a plurality of air-permeable holes formed therein and having one surface adhered to the other surface of the adhesive layer.

公开(公告)号：US20230283963A1

公开(公告)日：2023-09-07

申请号：US18176598

申请日：2023-03-01

Applicant: Skyworks Solutions, Inc.

Inventor： Guofeng Chen ,  Rakesh Kumar ,  You Qian ,  Michael Jon Wurtz ,  Humberto Campanella-Pineda

IPC: H04R17/02 ,  H04R1/04 ,  H04R1/08 ,  H04R3/00

CPC classification number: H04R17/02 ,  H04R1/04 ,  H04R1/086 ,  H04R3/00 ,  H04R2201/003

Abstract: A piezoelectric microelectromechanical system microphone assembly comprises a carrier substrate including one of a through-hole or a recess, and a package including a microelectromechanical system die having a piezoelectric microelectromechanical system microphone mounted on a microphone substrate and a lid, at least a portion of the package disposed within the one of the through-hole or recess.