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:
Jan. 12, 1988
Filed:
Mar. 03, 1986
LuVerne R Peterson, San Diego, CA (US);
Stephen J Chung Chan, San Diego, CA (US);
Unisys Corporation, Detroit, MI (US);
Abstract
An error-correcting memory system includes a storage module which receives an address during a read cycle and which reads data bits and check bits at the address, and it further includes a low DC power logic circuit which corrects errors in the data bits by decoding multiple minterms from the check bits; wherein the logic circuit is comprised of: a plurality of logic gates, one for generating each of the minterms by passing a constant power dissipating current to selectively decode the check bits; a control circuit for generating a control signal that is in one state during only a small fraction of the read cycle and is otherwise in an opposite state; and an enabling circuit, coupled between the control circuit and the logic gates, for enabling their selective decoding by permitting the constant current to flow through the gates only while the control signal is in its one state.