Can Redundancy and Masking Improve the Performance of Synchronizers?

Lindsay Kleeman, Antonio Cantoni

Research output: Contribution to journalArticleResearchpeer-review


This paper considers the possibility of achieving improvements in the reliability of synchronizing an asynchronous signal by exploiting redundancy and masking. Redundancy and masking techniques have been applied successfully to mask both permanent and transient hardware faults. However, it is shown in this paper that redundancy and masking techniques are ineffective against synchronization failures which arise because of metastable behavior of synchronizing elements.

Original languageEnglish
Pages (from-to)643-646
Number of pages4
JournalIEEE Transactions on Computers
Issue number7
Publication statusPublished - 1 Jan 1986
Externally publishedYes


  • Asynchronous inputs
  • masking
  • metastable behavior
  • redundancy
  • synchronizer

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