Binary MOS parallel comparators

US4450432A · kind A · utility

Assignee

• ITT Industries · US

Inventors

• Friedrich Schmidtpott · Hartheim, DE
• Reiner Backes · Glückstadt, DE

Key dates

• Filing date: Aug 26, 1981
• Grant date: May 22, 1984
• Expiry date: Aug 26, 2001

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F7/026
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

The monolithic integrated binary MOS parallel comparator uses enhancement-mode insulated-gate field effect transistors of the same conductivity type and comprises n successively weighted stages each including a NOR block having at least two inputs each receiving a correspondingly weighted digit of a different one of a first and a second n-digit binary word and an additional logic circuit also receiving the correspondingly weighted digit of the first and second words, and an output logic circuit coupled to each of the n stages to provide an output signal for the comparator.