Logic circuit connecting input and output signal lines

Claim 1

A logic circuit having an input signal lead for receiving an input signal, an output signal lead for providing an output signal, a first voltage supply terminal, and a second voltage supply terminal, comprising: first, second and third transistors; said first transistor having a first current handling terminal, a control terminal, and a second current handling terminal; load means connected between the first voltage supply terminal and the first current handling terminal of the first transistor; said second transistor having a first current handling terminal connected to said first voltage supply terminal, a control terminal connected to the first current handling terminal of the first transistor, and a second current handling terminal; said third transistor having a first current handling terminal connected to the second current handling terminal of the second transistor, a control terminal, and a second current handling terminal; the control terminals of the first and third transistors being connected to the input signal lead; the output signal lead being connected to the first current handling terminal of the third transistor; and a load device connected between the respective current handling terminals of the first and third transistor and the second voltage supply terminal.