Accordingly, it is a primary object of the present invention to provide a leapfrog filter which is so designed that {HEAD ~ the number} of {TAIL ~ components} is decreased 
of
Accordingly , it is a primary object of the present invention to provide a leapfrog filter which is so designed that { HEAD ~ the number } of { TAIL ~ components } is decreased
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH