SOUND LEVEL DOSEAGE SYSTEM FOR VEHICLES
    3.
    发明公开
    SOUND LEVEL DOSEAGE SYSTEM FOR VEHICLES 审中-公开
    声音量系统的车辆

    公开(公告)号:EP2664061A1

    公开(公告)日:2013-11-20

    申请号:EP12734017.2

    申请日:2012-01-12

    IPC分类号: H03G3/32

    摘要: Audio systems for a vehicle and methods of operating an audio device in a vehicle cabin are provided. A method of operating an audio device directs an acoustic signal to at least one vehicle cabin receiver (VCR) of the audio device; measures sound pressure levels (SPLVCM) for acoustic energy received by at least one vehicle cabin microphone (VCM) of the audio device during a time period ?t; calculates a sound pressure level (SPL) dose (SPL_Dose?t) during the time period At using the sound pressure levels SPLVCM of the at least one VCM; combines the SPL dose (SPL_Dose?t) with an SPL dose of a previous time period to form a total SPL dose (SPL_Dosetotal); and performs an action to modify operation of the audio device when the total SPL dose is greater than a predetermined threshold.

    METHOD AND DEVICE FOR ACOUSTIC SEALING AND OCCULSION EFFECT MITIGATION
    8.
    发明公开
    METHOD AND DEVICE FOR ACOUSTIC SEALING AND OCCULSION EFFECT MITIGATION 审中-公开
    方法和设备隔声OKKLUSIONSEFFEKTMINDERUNG

    公开(公告)号:EP2396976A1

    公开(公告)日:2011-12-21

    申请号:EP10741875.8

    申请日:2010-02-16

    IPC分类号: H04R25/00

    CPC分类号: A61F11/10

    摘要: At least one exemplary embodiment is directed to a system configured to occlude an ear canal. The system comprises a support structure, an expandable device, a housing, a resilient reservoir, and a threaded device. Resilient reservoir resides within housing and is filled with a medium. The threaded device couples to a threaded region of support structure. Threaded device fits in an opening of housing. Rotating threaded device reduces an interior volume of housing thereby transferring the medium from resilient reservoir to expandable device. Threaded device is rotated to displace sufficient medium within resilient reservoir to expand expandable device to occlude the ear canal. Resilient reservoir is passively filled when expandable device is in an un-expanded state.