Piezoelectric switch with audible feedback

A piezoelectric switch comprising:

• a piezoelectric element;
• means for sensing an electrical signal output from said piezoelectric element when activated;
• means connected to said electrical signal output of said
• sensing means for generating a pulse having a predetermined pulse width;
• and
• means connected to an output of said pulse generating means for generating an oscillating signal, said oscillating signal being coupled to said piezoelectric element for producing an audible feedback.

A method of providing a piezoelectric pushbutton switch having audible feedback comprising the steps of:

• providing a housing for enclosing components of said switch;
• attaching a piezoelectric element to an inner top surface of said housing wherein applying pressure on the top of said housing causes said piezoelectric element to switch and generate an electrical signal;
• providing a circuit board in said housing electrically connected to said piezoelectric element for receiving said electrical signal;
• generating an output signal having a predetermined pulse width from circuit means on said circuit board receiving said electrical signal;
• and
• generating an oscillating signal within said circuit means, said oscillating signal being connected to said piezoelectric element for producing said audible feedback.

A method of providing a piezoelectric switch having audible feedback comprising the steps of:

• providing a piezoelectric element in said switch;
• sensing an output of said piezoelectric element when said switch is activated;
• generating a pulse having a predetermined pulse width with means connected to an output of said means for sensing said piezoelectric element output;
• generating an oscillatory signal with means connected to an output of said pulse generating means;
• and
• coupling said oscillatory signal to said piezoelectric element to produce said audible feedback.