초록 ▼

This application outlines several applications of a piezoelectric materials invention to produce quality loudspeakers in applications where coil driven dynamic speakers are difficult or impossible to implement with an appreciable degree of sound quality. This invention includes a series of modificat

This application outlines several applications of a piezoelectric materials invention to produce quality loudspeakers in applications where coil driven dynamic speakers are difficult or impossible to implement with an appreciable degree of sound quality. This invention includes a series of modifications to a laptop computer such as the IBM 750c. The modifications to the computer consist of placing piezoelectric patches behind the LCD and directly to the back wall of the laptop lid. Damping materials and stiffeners are also added to the back wall to reduce structural resonance. A system consisting of an audio amplifier and transformer is used to drive the piezo speaker.

대표청구항 ▼

A laptop personal computer having piezo speakers, said computer comprising a modular base containing power means, an audio amplifier means and a hard drive means, a hollow lid hinged along one edge to said modular base, display means affixed to said lid and adapted to display information from said h

A laptop personal computer having piezo speakers, said computer comprising a modular base containing power means, an audio amplifier means and a hard drive means, a hollow lid hinged along one edge to said modular base, display means affixed to said lid and adapted to display information from said hard drive, and piezo plate members affixed within an inner surface of said hollow lid means and connected to audio amplifier means to form, in combination with said lid means, a loudspeaker that provides acoustic sounds from said amplifier audio signals.