Performance Estimation with Automatic False-Path Detection for System-Level Designs

Abstract

When designing today's highly complicated systems consisting of several hardware and software modules, it is essential to estimate the performance such as worst-case or best-case execution time in early design stages. Such estimation is essential to explore architecture and hardware/software partitioning in system-level design. A maximum execution time estimated topologically without considering false-paths is longer than the real. In this paper, we propose an static estimation method of maximum execution time in system-level designs, considering false-paths. Also, we adopt an approximation approach in order to avoid the path explosion problem. The experimental results show that our method can provide much smaller estimated maximum execution time than the method without considering false-paths. At the same time, the results show us that the maximum execution time can be estimated to a very small range, by applying both simulation-based method and our static method.

Anti-copy and authenticity verification method for ceramic products: Development of new glass phosphor with two optical features

“…We developed a technique in order to verify the authenticity of ceramic products mechanically and to enhance the dif iculty of counterfeiting genuine products, based on a concept called artifact metrics [5,6,7,8]. In our previous study [9], we focused on a transparent glass phosphor which exhibited a one-peak emission wavelength in the near infrared wavelength band by optical excitation [10,11,12,13].…”