Telecommunications programmed sequential logic circuit - reduces logic operations into series of variable input tests

摘要

The logic circuit is designed to perform logic operations by reducing the operations into a succession of variable input tests. The circuit has control of output variables and internal operations and has a time base and a principal memory addressed by an ordinal computer. Each order stored in the principal memory has an operation code, data, a first address for access means and a second address for loading the ordinal computer. The logic circuit has an auxiliary memory with direct access addressed by the first address. The auxiliary memory receives at its input data. The circuit has also a test circuit for the input variables and for the output of the auxiliary memory. A control circuit positions the ordinal computer controlled by the operation code.