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:
Dec. 02, 1980
Filed:
Sep. 02, 1977
Barry R Borgerson, Gwynedd Valley, PA (US);
Garold S Tjaden, Doylestown, PA (US);
Merlin L Hanson, Arden Hills, MN (US);
Sperry Corporation, New York, NY (US);
Abstract
Decision and control logic for use in digital computers that operate in cycles provides binary valued decision signals for effecting decisional control within the computer such as that utilized in conditional branching. The decision signals are provided in accordance with binary valued control functions of binary valued static and dynamic control variables utilized in the computer. The dynamic control variables are available in a computer cycle subsequent to the availability of the static variables and represent conditions of various components of the computer. Truth tables of the control functions are stored in logic function memories addressed by logic function selection control fields of computer control words, the control fields selectively addressing the truth tables in accordance with the desired functions. The static variables are utilized for addressing the logic function memories for providing the truth table entries corresponding to the selected function of the static control variables and the dynamic variables select among the addressed truth table entries to provide the binary valued decision control signals. Preferably the logic function memories are implemented by LSI integrated circuits.