Patent ID: 7840023

Claim:
A mobile terminal, comprising: a portable housing; a micro-speaker positioned in the housing, the micro-speaker comprising a housing including a vibratory member mounted therein and defining a plane of the micro-speaker; a first forward tuning volume adjacent a front face of the micro-speaker; a passageway extending from the first forward tuning volume to an opening in the housing; and a second forward tuning volume in fluid communication with the passageway and positioned at a location between the first forward tuning volume and the opening in the housing, the second forward tuning volume, the first forward tuning volume and the passageway defining a double-resonator that tunes a frequency response of the micro-speaker; wherein the first forward tuning volume includes the entire area in front of and adjacent the micro-speaker and extends in a plane substantially parallel to the plane of the micro-speaker and the passageway is an extension of the first forward tuning volume extended to an outside opening in the phone housing, at least part of which passageway extends in the plane of the first forward tuning volume and wherein the entire area of the first forward tuning volume extending over the micro-speaker and the entire length of the passageway are in the same plane.