Serial digit multiplier for several codes - has simple circuits for processing carries and tens values

摘要

A serial electronic digit multiplier circuit processes decimal factor numbers in uncoded form and forms product numbers with multiple addition of multiplicand numbers. In the unit region the circuit is in the form of a parallel circuit adder. The processing of the first adder circuit's (1) carries is performed by a simple adder circuit (2) which can only process the number 1. The carry adder circuit contains fewer than 15 AND circuits. USE/ADVANTAGE - For use with 54321, 51111 or 5211 code. Simple circuit for forming tens values adds only 1 or null.