We develop a computer aided design (CAD) tool for the simulation and testing of a color image printing pipeline. True color images typically have three color planes (red, green and blue) with eight bits of resolution per pixel per image plane. Printing these images involves a binarization process called halftoning which converts each color plane into a binary image for rendering on binary devic...

Most of the existing modeling tools and frameworks for embedded applications use levels of abstraction where execution and communication times of computational tasks are not captured. Thus, properties such as time and value determinism can be lost when refining the model closer to a target platform. The Logical Execution Time (LET) paradigm has been proposed to deal with this issue, by enabling...

The key contribution of this project is a realization of modular, scalable and extensible simulation and design paradigm for video codec based on the system-level modeling and its implementation on extensible framework. To support this new simulation and design paradigm, generic dataaow of video codec system is modeled by homogeneous synchronous dataaow HSDF and implemented on the heterogeneous...

Since the first large-scale computer network was built in the early 1960s, the protocol design problem has become a more important issue to efficiently coordinate distributed system nodes. Recently, in response to the fast growing demand for connecting various devices with current network infrastructures, many intricate protocols have been designed to support communications across such heteroge...

This technical note uses the Ptolemy II interface automaton editor to compose networks of dataflow actors and buffers. The automata are first described as Actif actors; the composition of the automata together with a controller automata reveals the combined behavior of the network. This technical note can be referenced as: “Interface Automata and Actif Actors,” H John Reekie, UC Berkeley, Novem...

Abstract In his Commentary on Ptolemy’s Harmonics , Porphyry debunks quantitative theory of pitches by demonstrating that are qualitative attributes sound. I argue Porphyry’s main concern is to save the phenomenological dimension sound while preserving possibility a analysis music. show how he draws Aristotelian tradition develop as emergent properties covary with some underlying features witho...

The influence of Malmquist bias on the studies of extragalactic distances is reviewed, with brief glimpses of the history from Kapteyn to Scott. Special attention is paid to two kinds of biases, for which the names Malmquist biases of the first and second kind are proposed. The essence of these biases and the situations where they occur are discussed. The bias of the first kind is related to th...