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