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Title: Approximate circuits for increased reliability

Abstract

Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1210221
Patent Number(s):
9112490
Application Number:
14/052,896
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03K - PULSE TECHNIQUE
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 14
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hamlet, Jason R., and Mayo, Jackson R. Approximate circuits for increased reliability. United States: N. p., 2015. Web.
Hamlet, Jason R., & Mayo, Jackson R. Approximate circuits for increased reliability. United States.
Hamlet, Jason R., and Mayo, Jackson R. Tue . "Approximate circuits for increased reliability". United States. https://www.osti.gov/servlets/purl/1210221.
@article{osti_1210221,
title = {Approximate circuits for increased reliability},
author = {Hamlet, Jason R. and Mayo, Jackson R.},
abstractNote = {Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {8}
}

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Works referenced in this record:

Design as you see FIT: System-level soft error analysis of sequential circuits
conference, April 2009


Seamless Integration of SER in Rewiring-Based Design Space Exploration
conference, October 2006


Soft Error Mitigation Through Selective Addition of Functionally Redundant Wires
journal, March 2008


Partial error masking to reduce soft error failure rate in logic circuits
conference, January 2003


Signature-Based SER Analysis and Design of Logic Circuits
journal, January 2009