Extension system of woofer and design method thereof
AssigneeAcer Incorporated
InventorJia-Ren Chang
Life of this patent
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Abstract
An extension system of a woofer suited for a portable electronic device is provided. The extension system of woofer includes the woofer, a front channel, and a rear channel disposed in a body of the portable electronic device. The rear channel is a sealed space, a volume of the front channel is greater than a volume of the rear channel, and the front channel has a bass hole formed on a surface the body. A design method of an extension system of a woofer is also provided.
Claims14
A design method of an extension system of a woofer, adapted for a portable electronic device, the design method comprising:
- obtaining a predetermined volume required for installing the extension system to the portable electronic device;
- computing a cut-off frequency based on the predetermined volume and a wave formula of plane waves;
- obtaining a channel length and a channel cross-sectional area of the extension system through the computing;
- and
- forming a front channel of the extension system according to the channel length and the channel cross-sectional area, and fitting the extension system into the portable electronic device.
An extension system of a woofer, adapted for a portable electronic device, the extension system of the woofer comprising:
- the woofer, disposed in a body of the portable electronic device;
- and
- a front channel and a rear channel, respectively disposed in the body, wherein the rear channel is a sealed space, a volume of the front channel is greater than a volume of the rear channel, and the front channel has a bass hole formed on a surface of the body.
Dependencies are inferred from the claim text.