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:
Aug. 07, 1984
Filed:
Nov. 06, 1981
George F Schroeder, Wayne, NJ (US);
Garry E Pitt, Towaco, NJ (US);
John F Scully, East Orange, NJ (US);
Lell E Barnes, North Caldwell, NJ (US);
The Singer Company, Little Falls, NJ (US);
Abstract
A computer system is provided for reconstructing a word, which is altered during cycling of the computer memory when a nuclear event occurs. The computer system includes a nuclear event detector, a circuit for setting flags in response to the detection of an event, a generating circuit for generating a random variable time interval in response to the flags, a circuit for performing block parity on the data in the memory in response to the flags, and correcting circuit for correcting the altered word in the memory in response to the block parity circuit. The computer system further includes a circuit for correcting multiple memory word upsets in response to the block parity circuit and an updating circuit for performing block parity during sequential storage or random storage of the data words before or after an event.