13. A word block searcher according to claim wherein said searching means includes: first memory means for storing said head portion; and second memory means for storing said tail portion.
13. A word block searcher according to claim wherein said searching means includes: first memory means for storing said head portion; and second memory means for storing said tail portion. 14. A word block searcher according to claim 13, wherein said searching means further includes: third memory means for storing a start point data which defines the starting point of said word block searching.