Miniaturized high power speaker
AssigneeK & J Electronics, Inc.
InventorJae H. Kim
Life of this patent
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Abstract
A thin, compact, high power speaker for producing high volume sound alarm signals and for reproducing voice messages, and which may be installed in a limited space. The speaker of the invention includes a housing, a transducer mounted in the housing for generating sound signals, a high pressure chamber acoustically coupled to the transducer for receiving and compressing the sound signals from the transducer, a nozzle acoustically coupled to the high pressure chamber, a sound resonance/reflection passage acoustically coupled to the nozzle to amplify and reflect the sound signals, and a sound induction passage acoustically coupled to the resonance/reflection passage to direct the amplified and reflected sound signals through the front of the speaker into the surrounding space.
Claims4
A speaker comprising:
- a housing having a closed end and an open end;
- a transducer mounted in said housing for producing sound signals in response to electrical audio signals applied thereto;
- a second housing surrounding said transducer;
- a first dish-shaped wall member attached to the exterior of said second housing having a central opening therein and forming a pressure chamber acoustically coupled to said transducer for receiving the sound signals from the transducer;
- a diaphragm for said transducer mounted in said pressure chamber;
- a second dish-shaped wall member attached to said first dish-shaped wall member having a central tubular portion surrounding said central opening in said first dish-shaped wall member and having a central tubular portion surrounding said central opening in said first dish-shaped wall member forming a nozzle having an inlet acoustically coupled to said pressure chamber and said nozzle further having an outlet;
- a third dish-shaped wall member mounted in said housing having a cusp-shaped central portion facing the outlet of said nozzle and spaced from said dish-shaped wall member to form a sound resonance/reflection passage acoustically coupled to the outlet of said nozzle and constructed to resonate with the sound signals from said nozzle and to change the direction thereof;
- and said third dish-shaped member being shaped to form a sound induction passage for said sound signals acoustically coupled to said sound resonance/reflection passage for directing the sound signals from said sound resonance/reflection passage through the open end of said housing.
Dependencies are inferred from the claim text.