POWER OVER ETHERNET (PoE) POWERED SMART SPEAKER

    公开(公告)号:US20240283668A1

    公开(公告)日:2024-08-22

    申请号:US18571396

    申请日:2022-01-19

    Abstract: A networked speaker device includes a sealed housing and an Ethernet port in the housing for receiving power and audio data from a network router via an Ethernet cable. A power supply subsystem in the housing manages the power received at the Ethernet port. A microprocessor subsystem, powered by the power supply subsystem, receives and processes the audio data to generate output audio signals. A digital audio amplifier. powered by the power supply subsystem, amplifies the output audio signals to drive a speaker driver to render an audio output. The device also includes at least one heater resistor in the housing powered by the power supply subsystem. The at least one heater resistor is controlled by the microprocessor subsystem to automatically heat the interior of the housing when temperature inside the housing falls below a given temperature.

    SPEAKER UNIT
    6.
    发明公开
    SPEAKER UNIT 审中-公开

    公开(公告)号:US20230276176A1

    公开(公告)日:2023-08-31

    申请号:US18040218

    申请日:2021-07-29

    Abstract: A speaker unit (1) with a speaker frame (9) and two membranes (7, 8) arranged in the speaker frame (9). A first membrane (7) radiates in a major acoustic radiation direction (A) substantially perpendicular to a major plane (9a) of the speaker unit (1). A second membrane (8) has a secondary acoustic radiation direction (B) different from the major acoustic radiation direction (A). Two drive units (2) are positioned within the speaker frame (9), attached to the two membranes (7, 8), and positioned coaxial to each other at the same height in the speaker frame (9). An acoustic duct (6) provides for a closed acoustic channel from the second membrane (8) in the secondary acoustic radiation direction (B) to a secondary surface (6a) of the speaker unit (1) in a same plane as the major plane (9a) of the speaker unit (1).

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