Method of making frequency responsive device

Claim 1

THE METHOD OF PRODUCING AN ARRAY OF ENERGY TRANSMITTING FIBERS IN WHICH SAID FIBERS HAVE DIFFERENT RESONANT FREQUENCIES TO PROVIDE AN ARRAY RESPONSIVE TO A PLURALITY OF FREQUENCIES, INCLUDING THE STEPS OF (A) COATING SAID FIBERS TO A PREDETERMINED THICKNESS IN ACCORDANCE WITH THE SPACING DESIRED BETWEEN ADJACENT ELEMENTS, (B) BUNDLING SAID FIBERS IN ORDER THAT THEIR LONGITUDINAL AXES ARE SUBSTANTIALLY PARALLEL WITH RESPECT TO EACH OTHER AND SAID FIBERS ARE CONTIGUOUS ALONG THEIR LENGTHS WITH RESPECT TO ADJACENT FIBERS, (C) FORMING SAID FIBERS INTO AN INTEGRAL UNIT, (D) SHAPING THE EXTREMITIES OF SAID FIBERS IN ORDER THAT ENERGY MAY BE TRANSMITTED FROM EACH OF SAID FIBERS, (E) SELECTIVELY REMOVING A PORTION OF THE MATERIAL BETWEEM SAID FIBERS IN ORDER THAT SAID FIBERS HAVE VARYING RESONANT FREQUENCIES TO PROVIDE AN ARRAY RESPONSIVE TO A PLURALITY OF FREQUENCIES.