Patent ID: 6075898
Filing Date: 2000-06-13
Classification: G06K

Abstract:
A reflective array compressor, comprising:a plurality of electrically separate input transducers arranged as an array along a concave input arc, wherein each input transducer launches an input surface acoustic wave when excited with an electrical signal,b. a plurality of electrically separate output transducers arranged as an array along a concave output arc, and each output transducer provides an electrical output signal when it receives an output surface acoustic wave,c. a plurality of space apart curved reflectors, such that an input signal tuned to a chirp signal f.sub.ch at center frequency value f.sub.m applied simultaneously to each said input transducer causes a compressed pulse to appear at the centerline of said output arc, and such that when each input transducer is driven with said chirp signal, wherein each chirp signal has been phase shifted by an amount linearly proportional to the location of said input transducer along said input arc, then said compressed pulse appears offset from the centerline of said output arc, by an amount that is proportional to said phase shift.