The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1976
Filed:
Dec. 20, 1974
Frederick Buckley, III, Vestal, NY (US);
Gerald Aberdeen Miller, Owego, NY (US);
Vincent Anthony Scotto, Endicott, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A negative shunt feedback amplifier is disclosed for connection to the output node of a complex complementary metal oxide semiconductor logic circuit to increase the performance and reduce the FET device size. A CMOS inverter is coupled to the amplifier to restore the logic levels and to form the logic output. A first embodiment of the invention uses a resistor feedback and a second embodiment of the invention uses parallel N-channel and P-channel FETs to form the feedback impedance. The circuit has application in environments where a logic function requires a large number of FET devices resulting in a large output node capacitance and, thereby slowing the logic speed, as for example in a large DOT-OR circuit or at each output of a FET memory array.