Cellular structures for implementing recursive and non-recursive digital filters

Some cellular arrays for implementing digital filters as iterative assemblies of equal modules are introduced. The main advantage of these structures, which can be sequential or combinational, is that there is a large overlapping between the execution of the multiplications required to compute an output sample. In this way the time for a multiplication gives only an additive contribution to the total time needed for obtaining an output sample thus improving on the solutions previously presented.