主权项 |
1. A protective cover for an electronic device, the protective cover comprising:
a case for enclosing the electronic device, the case having an inner surface, an outer surface, and a sound aperture in the case proximate an acoustic opening of the electronic device when the electronic device is installed in the case; and an acoustic isolation mechanism molded from a waterproof elastomer and disposed on the inner surface of the case proximate the acoustic opening of the installed electronic device, the acoustic isolation mechanism comprising
a first face oriented towards an interior of the case, the first face contacting the installed electronic device,a second face oriented towards an exterior of the case, the second face contacting the inner surface of the case,at least one acoustic channel extending from the first face to the second face of the acoustic isolation mechanism that acoustically couples the acoustic opening of the installed electronic device and the sound aperture, andat least one acoustic membrane co-molded from the waterproof elastomer of the acoustic isolation mechanism, the acoustic membrane spanning a cross-section of the at least one acoustic channel and having a substantially constant thickness across the acoustic membrane's area. |