知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

158 records (took 0.032 seconds)

    Audio zoom
    94.
    发明授权
    Audio zoom 有权

    公开(公告)号：US11671752B2

    公开(公告)日：2023-06-06

    申请号：US17316529

    申请日：2021-05-10

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon Kim ,  Fatemeh Saki ,  Yoon Mo Yang ,  Erik Visser

    IPC: H04R1/40 ,  H04R1/24 ,  H04R5/033 ,  H04R5/04

    CPC classification number: H04R1/406 ,  H04R1/245 ,  H04R5/033 ,  H04R5/04

    Abstract: A device includes one or more processors configured to execute instructions to determine a first phase based on a first audio signal of first audio signals and to determine a second phase based on a second audio signal of second audio signals. The one or more processors are also configured to execute the instructions to apply spatial filtering to selected audio signals of the first audio signals and the second audio signals to generate an enhanced audio signal. The one or more processors are further configured to execute the instructions to generate a first output signal including combining a magnitude of the enhanced audio signal with the first phase and to generate a second output signal including combining the magnitude of the enhanced audio signal with the second phase. The first output signal and the second output signal correspond to an audio zoomed signal.

    Spatial audio zoom
    95.
    发明授权
    Spatial audio zoom 有权

    公开(公告)号：US11425497B2

    公开(公告)日：2022-08-23

    申请号：US17127421

    申请日：2020-12-18

    Applicant: QUALCOMM Incorporated

    Inventor： S M Akramus Salehin ,  Lae-Hoon Kim ,  Vasudev Nayak ,  Shankar Thagadur Shivappa ,  Isaac Garcia Munoz ,  Sanghyun Chi ,  Erik Visser

    IPC: H04R3/00 ,  G06K9/00 ,  G02B27/00 ,  H03G3/30 ,  G06V40/19

    Abstract: In an aspect, a lens is zoomed in to create a zoomed lens. Lens data associated with the lens includes a direction of the lens relative to an object in a field-of-view of the zoomed lens and a magnification of the object resulting from the zoomed lens. An array of microphones capture audio signals including audio produced by the object and interference produced by other objects. The audio signals are processed to identify a directional component associated with the audio produced by the object and three orthogonal components associated with the interference produced by the other objects. Stereo beamforming is used to increase a magnitude of the directional component (relative to the interference) while retaining a binaural nature of the audio signals. The increase in magnitude of the directional component is based on an amount of the magnification provided by the zoomed lens to the object.

    ACTIVE SELF-VOICE NATURALIZATION USING A BONE CONDUCTION SENSOR
    96.
    发明申请
    ACTIVE SELF-VOICE NATURALIZATION USING A BONE CONDUCTION SENSOR 有权

    公开(公告)号：US20220109930A1

    公开(公告)日：2022-04-07

    申请号：US17530320

    申请日：2021-11-18

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon Kim ,  Rogerio Guedes Alves ,  Jacob Jon Bean ,  Erik Visser

    IPC: H04R3/04

    Abstract: Methods, systems, and devices for signal processing are described. Generally, as provided for by the described techniques, a wearable device to receive an input audio signal from one or more outer microphones, an input audio signal from one or more inner microphones, and a bone conduction signal from a bone conduction sensor based on the input audio signals. The wearable device may filter the bone conduction signal based on a set of frequencies of the input audio signals, such as a low frequency portion of the input audio signals. For example, the wearable device may apply a filter to the bone conduction signal that accounts for an error in the input audio signals. The wearable device may add a gain to the filtered bone conduction signal and may equalize the filtered bone conduction signal based on the gain. The wearable device may output an audio signal to a speaker.

    Seamless listen-through for a wearable device
    97.
    发明授权
    Seamless listen-through for a wearable device 有权

    公开(公告)号：US10681452B1

    公开(公告)日：2020-06-09

    申请号：US16285923

    申请日：2019-02-26

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon Kim ,  Dongmei Wang ,  Fatemeh Saki ,  Taher Shahbazi Mirzahasanloo ,  Erik Visser ,  Rogerio Guedes Alves

    IPC: A61F11/06 ,  G10K11/16 ,  H03B29/00 ,  H04R1/10

    Abstract: Methods, systems, and devices for signal processing are described. Generally, as provided for by the described techniques, a wearable device may receive an input audio signal (e.g., including both an external signal and a self-voice signal). The wearable device may detect the self-voice signal in the input audio signal based on a self-voice activity detection (SVAD) procedure, and may implement the described techniques based thereon. The wearable device may perform beamforming operations or other separation procedures to isolate the external signal and the self-voice signal from the input audio signal. The wearable device may apply a first filter to the external signal, and a second filter to the self-voice signal. The wearable device may then mix the filtered signals, and generate an output signal that sounds natural to the user.

    HEAD-RELATED TRANSFER FUNCTION GENERATION
    98.
    发明申请
    HEAD-RELATED TRANSFER FUNCTION GENERATION 审中-公开

    公开(公告)号：US20200178014A1

    公开(公告)日：2020-06-04

    申请号：US16206680

    申请日：2018-11-30

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon Kim ,  Dongmei Wang ,  Erik Visser

    IPC: H04S7/00 ,  H04S3/00 ,  G06N3/08

    Abstract: Methods, systems, and devices for head-related transfer function generation are described. A device may receive a digital representation of a first audio signal associated with a location relative to a subject, and select from a database a first reference head-related transfer function measurement pair corresponding to the location of the first audio signal. The device may then obtain a second head-related transfer function measurement pair by performing a style transfer operation on the selected reference head-related transfer function measurement pair based on a set of head-related transfer function measurement pairs specific to the subject. As a result, the device may output a second audio signal based on the digital representation of the first audio signal and the second head-related transfer function measurement pair.

Patent Agency Ranking