公开(公告)号：US12219329B2

公开(公告)日：2025-02-04

申请号：US18082224

申请日：2022-12-15

Applicant: British Cayman Islands Intelligo Technology Inc.

Inventor： Hsueh-Ying Lai ,  Chih-Sheng Chen ,  Hua-Jun Hong ,  Chien Hua Hsu ,  Tsung-Liang Chen

IPC: H04R3/00 ,  H04R1/10

Abstract: A microphone system for a boomless headset is disclosed, comprising a microphone array and a processing unit. The microphone array comprises Q microphones and generates Q audio signals. A first microphone and a second microphone are disposed on different earcups, and a third microphone is disposed on one of two earcups and displaced laterally and vertically from one of the first and the second microphones. The processing unit performs operations comprising: performing spatial filtering over the Q audio signals using a trained model based on an arc line with a vertical distance and a horizontal distance from a midpoint between the first and the second microphones, a time delay range for the first and the second microphones and coordinates of the Q microphones to generate a beamformed output signal originated from zero or more target sound sources inside a target beam area, where Q>=3.

公开(公告)号：US12231844B2

公开(公告)日：2025-02-18

申请号：US17895980

申请日：2022-08-25

Applicant: British Cayman Islands Intelligo Technology Inc.

Inventor： Hua-Jun Hong ,  Chih-Sheng Chen ,  Hsueh-Ying Lai ,  Yu-Pao Tsai ,  Tsung-Liang Chen

IPC: H04R1/40 ,  G06N3/04 ,  G06N3/08 ,  G10L21/0224 ,  H04R3/00 ,  G10L21/0216

Abstract: A microphone system of the invention is applicable to an electronic device comprising an adjustable mechanism that causes a change in geometry of a microphone array. The microphone system comprises the microphone array, a sensor and a beamformer. The microphone array comprises multiple microphones that detect sound and generate multiple audio signals. The sensor detects a mechanism variation of the electronic device to generate a sensing output. The beamformer is configured to perform a set of operations comprising: performing a spatial filtering operation over the multiple audio signals using a trained model based on the sensing output, one or more first sound sources in one or more desired directions and one or more second sound sources in one or more undesired directions to generate a beamformed output signal originated from the one or more first sound sources.

公开(公告)号：US12143782B2

公开(公告)日：2024-11-12

申请号：US17974323

申请日：2022-10-26

Applicant: British Cayman Islands Intelligo Technology Inc.

Inventor： Hsueh-Ying Lai ,  Chih-Sheng Chen ,  Chien-Hua Hsu ,  Hua-Jun Hong ,  Tsung-Liang Chen

IPC: H04R3/00 ,  H04R1/40

Abstract: A microphone system is disclosed, comprising: a microphone array and a processing unit. The microphone array comprises Q microphones that detect sound and generate Q audio signals. The processing unit is configured to perform operations comprising: spatial filtering over the Q audio signals using a trained model based on at least one target beam area (TBA) and coordinates of the Q microphones to generate a beamformed output signal originated from ω target sound source inside the at least one TBA, where ω>=0. Each TBA is defined by r time delay ranges for r combinations of two microphones out of the Q microphones, where Q>=3 and r>=1. A dimension of a first number for locations of all sound sources able to be distinguished by the processing unit increases as a dimension of a second number for a geometry formed by the Q microphones increases.