Provided by: Institute of Electrical & Electronic Engineers
Date Added: Nov 2013
Approximate circuit designs allow the user to tradeoff computation quality (e.g., accuracy) and computational effort (e.g., energy), by exploiting the inherent error-resilience of many applications. As the computation quality requirement of an application generally varies at runtime, it is preferable to be able to reconfigure approximate circuits to satisfy such needs and save unnecessary computational effort. In this paper, the authors present a reconfiguration-oriented design methodology for approximate circuits, and propose a reconfigurable approximate adder design that degrades computation quality gracefully.