Double-resonator micro-speaker assemblies and methods for tuning the same
First Claim
1. A mobile terminal, comprising:
- a portable housing;
a micro-speaker positioned in the housing;
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.
1 Assignment
0 Petitions
Accused Products
Abstract
Micro-speaker assemblies and mobile terminals including micro-speaker assemblies are provided. The micro-speaker assemblies include a micro-speaker positioned in a housing. A first forward tuning volume is positioned adjacent a front face of the micro-speaker. A passageway extends from the first forward tuning volume to an opening in the housing. A second forward tuning volume in fluid communication with the passageway is 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 define a double-resonator that tunes a frequency response of the micro-speaker. Methods for tuning micro-speakers are also provided.
29 Citations
33 Claims
-
1. A mobile terminal, comprising:
-
a portable housing;
a micro-speaker positioned in the housing;
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A micro-speaker assembly, comprising:
-
a micro-speaker positioned in a housing;
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. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
-
-
27. A method for tuning a micro-speaker, comprising:
-
selecting a volume of a first forward tuning volume adjacent a front face of a micro-speaker to define a first resonant frequency of the micro-speaker, the first resonant frequency providing an amplitude response in a voice frequency range and a high amplitude response, greater that the response in the voice frequency range, at the first resonant frequency; and
selecting a volume of a second forward tuning volume and a position of the second forward tuning volume on a passageway of the micro-speaker assembly extending from the first forward tuning volume to an opening in a housing containing the micro-speaker assembly to define a second resonant frequency of the micro-speaker, the second resonant frequency being greater than the first resonant frequency and wherein the second resonant frequency provides an amplitude response up to at least about 8000 hertz (Hz). - View Dependent Claims (28, 29, 30)
-
-
31. A micro-speaker assembly comprising:
-
a micro-speaker positioned in a housing; and
a double-resonator acoustically coupled to the micro-speaker having a first resonance frequency at an alert frequency above the voice frequency band and a second resonance frequency above the first resonance frequency. - View Dependent Claims (32, 33)
-
Specification