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    Acoustic identification of audio products
    21.
    发明授权
    Acoustic identification of audio products 有权

    公开(公告)号：US12061278B1

    公开(公告)日：2024-08-13

    申请号：US18346162

    申请日：2023-06-30

    Applicant: Apple Inc.

    Inventor： Christopher T. Eubank ,  Martin E. Johnson ,  Daniel K. Boothe ,  Jonathan D. Sheaffer

    IPC: G01S3/808 ,  G06F16/68 ,  H04R3/00 ,  H04S7/00

    CPC classification number: G01S3/8083 ,  G06F16/686 ,  H04R3/005 ,  H04S7/301

    Abstract: Disclosed are techniques for a multimedia device with audio and video capturing capability to identify an audio device based on acoustic playback signal if the audio device cannot be identified from captured video. The multimedia device may assemble a list of candidate audio devices that are a possible match for the observed audio device from a database of previously recognized audio devices and may transmit commands to the candidate audio devices to play acoustic identification signals. The acoustic identification signals may be audible sound or ultrasonic tone sequences with embedded identification information unique to each audio device. The multimedia device may record and analyze the acoustic identification signals received from any of the candidate audio devices to construct metrics to select the most likely candidate for the observed audio device. The metrics may include time of flight, direction of arrival, received amplitude, direct-to-reverberant ratio (DRR) of the acoustic identification signals.

    SYSTEM TO MOVE SOUND INTO AND OUT OF A LISTENER'S HEAD USING A VIRTUAL ACOUSTIC SYSTEM
    26.
    发明申请
    SYSTEM TO MOVE SOUND INTO AND OUT OF A LISTENER'S HEAD USING A VIRTUAL ACOUSTIC SYSTEM 有权

    公开(公告)号：US20210084414A1

    公开(公告)日：2021-03-18

    申请号：US17107613

    申请日：2020-11-30

    Applicant: Apple Inc.

    Inventor： Martin E. Johnson ,  Afrooz Family ,  Darius A. Satongar ,  Jonathan D. Sheaffer ,  Lance F. Reichert ,  Peter V. Jupin

    IPC: H04R5/04 ,  H04R5/033

    Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.

    Head related transfer function selection for binaural sound reproduction
    27.
    发明授权
    Head related transfer function selection for binaural sound reproduction 有权

    公开(公告)号：US10728690B1

    公开(公告)日：2020-07-28

    申请号：US16538655

    申请日：2019-08-12

    Applicant: Apple Inc.

    Inventor： Darius A. Satongar ,  Jonathan D. Sheaffer ,  Martin E. Johnson ,  Peter V. Jupin

    IPC: H04S7/00 ,  H04S3/00

    Abstract: An iterative method for finding which user characteristic data should be used for pruning a database of available HRTFs before selecting an HRTF from the database for a target user (target listener.) The selected HRTF is expected to be the one that is more suitable for target user. This is also referred to as having “personalized” the HRTF selection process for the target user. This is not about computing a suitable HRTF but rather how to use the user characteristic data to improve the chances of selecting the most appropriate one from a database of available HRTFs. Other aspects are also described and claimed.

    BONE CONDUCTION TRANSDUCERS FOR PRIVACY
    30.
    发明申请
    BONE CONDUCTION TRANSDUCERS FOR PRIVACY 有权

    公开(公告)号：US20250037709A1

    公开(公告)日：2025-01-30

    申请号：US18795015

    申请日：2024-08-05

    Applicant: Apple Inc.

    Inventor： Robert D. Silfvast ,  Neal D. Evans ,  Nikolas T. Vitt ,  Jonathan D. Sheaffer

    IPC: G10L15/08 ,  H04L9/40 ,  H04R1/10

    Abstract: A method for routing audio content through an electronic device that is to be worn by a user. The method obtains a communication and determines whether the communication is private. In response to determining that the communication is private, the method drives a bone conduction transducer of the electronic device with an audio signal associated with the communication. In response to determining that the communication is not private, however, the method drives a speaker of the electronic device with the audio signal.

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