Special-purpose ternary computer for digital filtering
Tatsuo Higuchi, Hisamitsu Hoshi · International Symposium on Multiple-Valued Logic · 1978
Real-time digital filters which have several advantages over analog filters are known as a very important digital-signal processor. This paper provides a summary of the design features of a special-purpose microprogram-controlled ternary computer suited for realizing the real-time digital filters by programming. Many advantages of the ternary number system are effectively employed for the ternary computer in hardware and software. Particular emphasis is placed on the use of the ternary adder with three inputs and the microprogram structure based on ternary logic. An example of the use of the ternary computer proposed for the real-time digital filters is presented to illustrate how microprogramming and user programming can easily be done and execution steps can substantially be reduced, unlike the corresponding binary computer.