Wearable device and method for controlling audio output using multi digital to analog converter path

    公开(公告)号:US12126975B2

    公开(公告)日:2024-10-22

    申请号:US17842044

    申请日:2022-06-16

    CPC classification number: H04R3/12 G10K11/17823 H04S3/008 H04R2205/022

    Abstract: A wearable device is provided and includes a plurality of speakers including a first speaker, a second speaker, and an Nth speaker, a plurality of digital to analog converter (DAC)s including a first DAC connected to the first speaker, a second DAC connected to the second speaker, and an Nth DAC connected to the Nth speaker, an audio signal processing module including N DAC output paths configured to filter an audio signal according to each frequency band and output the audio signal, a memory; and a processor electrically connected to the plurality of DACs, the audio signal processing module, and the memory, wherein the memory includes instructions causing the processor to, when the audio signal is reproduced, analyze a frequency component included in the audio signal, activate the N DAC output paths when the frequency component included in the audio signal has a full band range, activate only a DAC output path for processing a specific frequency band among the N DAC output paths when the frequency component included in the audio signal has only the specific frequency band, and output the audio signal through a speaker connected to the activated DAC output path.

    Random perturbation-based beamforming method and apparatus for use in mobile communication system
    4.
    发明授权
    Random perturbation-based beamforming method and apparatus for use in mobile communication system 有权
    基于随机扰动的波束成形方法和装置,用于移动通信系统

    公开(公告)号:US09577343B2

    公开(公告)日:2017-02-21

    申请号:US14142618

    申请日:2013-12-27

    CPC classification number: H01Q15/14 H01Q5/42 H01Q25/00

    Abstract: A method and apparatus configures a beamforming coefficient based on the signal strength information without collecting channel information by adjusting the phase of the antennas through random perturbation. An antenna control method of a base station in a wireless communication system using a beamforming technique includes measuring nth received signal strength at nth phase of at least one receive antenna, measuring (n+1)th received signal strength at (n+1)th phase shifted randomly from the nth phase in one of forward and backward directions, and configuring a beamforming coefficient with the phase at which the received signal strength is greatest through comparison of received signal strengths. The random perturbation-based beamforming method and apparatus of the present disclosure is capable of configuring the beamforming coefficient appropriate for the normal cellular environment using a plurality analog array antenna without channel estimation overhead.

    Abstract translation: 方法和装置基于信号强度信息配置波束形成系数,而不通过随机扰动调整天线的相位来收集信道信息。 在使用波束成形技术的无线通信系统中的基站的天线控制方法包括:测量第n个接收天线的第n个相位的第n个接收信号强度,测量第(n + 1)个第(n + 1)个接收信号强度 在正向和反向之一中从第n个相位随机移位,并且通过比较接收信号强度来配置具有接收信号强度最大的相位的波束形成系数。 本公开的基于随机扰动的波束成形方法和装置能够使用多个模拟阵列天线来配置适合于正常蜂窝环境的波束成形系数,而不需要信道估计开销。

    WEARABLE ELECTRONIC DEVICE
    5.
    发明申请

    公开(公告)号:US20250088792A1

    公开(公告)日:2025-03-13

    申请号:US18958491

    申请日:2024-11-25

    Abstract: Provided is a wearable electronic device including: a housing forming at least a part of an exterior of the wearable electronic device; a nozzle extending from a part of the housing, wherein the nozzle includes a first hole at a first position and a second hole at a second position; an acoustic path inside the nozzle; a grill inside the nozzle, wherein the grill includes a first latch passing through the first hole such that a part thereof protrudes in a first direction and a second latch passing through the second hole such that a part thereof protrudes in a second direction; and an ear tip at least partially surrounding an outer surface of the nozzle, wherein the ear tip includes a first groove detachably coupled to a part of the first latch and a second groove detachably coupled to a part of the second latch.

    RANDOM PERTURBATION-BASED BEAMFORMING METHOD AND APPARATUS FOR USE IN MOBILE COMMUNICATION SYSTEM
    9.
    发明申请
    RANDOM PERTURBATION-BASED BEAMFORMING METHOD AND APPARATUS FOR USE IN MOBILE COMMUNICATION SYSTEM 有权
    用于移动通信系统的随机基于PERTURBATION的波束形成方法和装置

    公开(公告)号:US20140184446A1

    公开(公告)日:2014-07-03

    申请号:US14142618

    申请日:2013-12-27

    CPC classification number: H01Q15/14 H01Q5/42 H01Q25/00

    Abstract: A method and apparatus configures a beamforming coefficient based on the signal strength information without collecting channel information by adjusting the phase of the antennas through random perturbation. An antenna control method of a base station in a wireless communication system using a beamforming technique includes measuring nth received signal strength at nth phase of at least one receive antenna, measuring (n+1)th received signal strength at (n+1)th phase shifted randomly from the nth phase in one of forward and backward directions, and configuring a beamforming coefficient with the phase at which the received signal strength is greatest through comparison of received signal strengths. The random perturbation-based beamforming method and apparatus of the present disclosure is capable of configuring the beamforming coefficient appropriate for the normal cellular environment using a plurality analog array antenna without channel estimation overhead.

    Abstract translation: 方法和装置基于信号强度信息配置波束形成系数,而不通过随机扰动调整天线的相位来收集信道信息。 在使用波束成形技术的无线通信系统中的基站的天线控制方法包括:测量第n个接收天线的第n个相位的第n个接收信号强度,测量第(n + 1)个第(n + 1)个接收信号强度 在正向和反向之一中从第n个相位随机移位,并且通过比较接收信号强度来配置具有接收信号强度最大的相位的波束形成系数。 本公开的基于随机扰动的波束成形方法和装置能够使用多个模拟阵列天线来配置适合于正常蜂窝环境的波束成形系数,而不需要信道估计开销。

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