Patent ID: 8489214
Filing Date: 2013-07-16
Classification: H04R

Abstract:
1. A dock without a power source for a portable digital device with at least one integrated speaker driver associable with a low cutoff frequency, the dock comprising: a platform for placement of the portable digital device; a first vertical wall, a second vertical wall and a base forming a passage way for sound emitted from the at least one integrated speaker driver, wherein the surfaces of the base, first and second walls are curved to provide a flared opening so as to aid in amplification of the emitted sound; a connector located at the platform, the connector being configurable to secure the portable digital device to the dock, the connector including a slot for egress of air from at least one hole in a casing of the portable digital device to the dock; and at least one primary chamber to receive air from the portable digital device, the at least one primary chamber being shaped and dimensioned in a manner so as to effectively increase the speaker chamber volume of the portable digital device when the portable digital device is connected to the dock, thereby effectively lowering the low cutoff frequency.