Constructable logic system

Claim 2

A constructable logic system, comprising a plurality of adjacently connective block elements, at least some of the block elements having input terminals, output terminals, and a first and a second group of intermediate terminals, logic circuitry connected between said input terminals and said first group of intermediate terminals, and also between said second group of intermediate terminals and said output terminals, said intermediate terminal groups interconnectable by conductor means for forming a given logic function in said block element.

Claim 3

A constructable logic system as claimed in claim 1 wherein the conductor means between the intermediate connection terminals is a card which can be inserted therebetween, and on which intermediate connections are indicated which are required for forming a given logical function in said block element.

Claim 4

A constructable logic system as claimed in claim 2, wherein said insertable card comprises connection lines which form said intermediate connections when the card has been inserted.

Claim 5

A constructable logic system as claimed in claim 3, wherein a signalling member is provided by which a signal state of an output of said circuit can be signalled.

Claim 6

A constructable logic system as claimed in claim 4, wherein the circuit is provided with three input terminals and four logical AND-gates to which signals can be applied to said AND-gates via two of said input terminals either in an inverted or a non-inverted form so that four possible logical AND-functions can be formed, said intermediate connection terminals being divided into a first and a second group, inputs of a number of AND-gates being connected to intermediate connection terminals of the first group, one of the intermediate connection terminals of the second group being connected to a signal of a logical one, a second intermediate connection terminal of said second group being connected to a signal of a logical zero, a third intermediate connection terminal of said second group being connected directly to the remaining third input terminal and a fourth intermediate connection terminal of said second group being connected via an invertor to said third input terminal, a logical OR-gate being connected to outputs of said logical AND-gates.

Claim 7

A constructable logic system as claimed in claim 5, wherein connection means are provided by means of which each block element can be connected to an adjacently arrangeable block element to form continuing energy supply lines between the adjacently arrangeable block elements.