Lightweight Error Correction Coding for System-Level Interconnects (2008)
Jason D. Bakos, Donald M. Chiarulli, Steven P. Levitan, Senior Member
Abstract—“Lightweight Hierarchical Error Control Coding (LHECC) ” is a new class of nonlinear block codes that is designed to increase noise immunity and decrease error rate for...
Lightweight Error Correction Coding for System-Level Interconnects (2008)
Jason D. Bakos, Donald M. Chiarulli, Steven P. Levitan, Senior Member
Abstract—“Lightweight Hierarchical Error Control Coding (LHECC) ” is a new class of nonlinear block codes that is designed to increase noise immunity and decrease error rate for...
Modeling and Simulation of Fiber Image Guide Multi-Chip Modules for MOEMS Applications (2008)
Steven P. Levitan, Timothy P. Kurzweg, Jose A. Martinez, Mark Kahrs, Jason Bakos, Jason Boles, ...
Densely integrated systems in the future will incorporate device and communication technologies that span the domains of digital and analog electronics, optics, micro-mechanics, and micro-fluidics....
Area, Power, and Pin Efficient Bus Transceiver Using Multi-Bit-Differential Signaling (2008)
Donald M. Chiarulli, Jason D. Bakos
Abstract—This paper describes a new low-power, area and pin efficient alternative to differential encoding for high performance chip-to-chip and backplane signaling. The technique, called...
Optoelectronic Multi-Chip Module Demonstrator System (2008)
Jason D. Bakos, Donald M. Chiarulli
Much research has been conducted in the area of optoelectronic interconnection and packaging technology. Much of this work is an effort to develop high bandwidth and low latency optoelectronic...
Short Courses in System-on-a-Chip (SoC) Design (2008)
Ivan S. Kourtev, Ray R. Hoare, Steven P. Levitan, Tom Cain, Bruce R. Childers, Donald M. Chiarulli, ...
A contract between the Pittsburgh Digital Greenhouse and The University of Pittsburgh called for the development of a set of three (3) continuing education courses. The original objectives,...
Leo Selavo, Donald M. Chiarulli, Steven P. Levitan
There are a variety of factors that can limit the set of allowable code words that are useable on an optical memory block. In this paper, we will primarily consider inter-symbol interference (ISI)...
Chip-to-Chip Multi-point Optoelectronic Interconnections (2008)
Donald M. Chiarulli, Steven P. Levitan, John Hansson, Michael Weisser
Abstract: We present a new class of interconnection solutions for centimeter scale, board and backplane level, optoelectronic interconnections that combines the high density of free space optical...
A Fast Optical Propagation Technique for Modeling MicroOptical Systems (2008)
Timothy P. Kurzweg, Steven P. Levitan, Jose A. Martinez, Mark Kahrs, Donald M. Chiarulli
As designers become more aggressive in introducing optical components to micro-systems, rigorous optical models are required for system-level simulation tools. Common optical modeling techniques and...
Modeling and Simulation of Fiber Image Guide Multi-Chip Modules for MOEMS Applications (2008)
Steven P. Levitan, Timothy P. Kurzweg, Jose A. Martinez, Mark Kahrs, Jason Bakos, Jason Boles, ...
Densely integrated systems in the future will incorporate device and communication technologies that span the domains of digital and analog electronics, optics, micro-mechanics, and micro-fluidics....
Efficient Optical Communications Using Multi-Bit Differential Signaling (2008)
Donald M. Chiarulli, Steven P. Levitan, Samuel J. Dickerson, Jason D. Bakos, Joel Martin
We present an alternative signaling method for multi-channel fiber ribbon based optical links. The method is based on a hybrid of differential signaling and single-ended channels. Channels are...
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
Transient Signal Analysis is a digital device testing method that is based on the analysis of voltage transients at multiple test points and on I DD switching transients on the supply rails. We show...
Abstract Digital Integrated Circuit Testing using Transient Signal Analysis (2008)
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
A novel approach to testing CMOS digital circuits is presented that is based on an analysis of I DD switching transients on the supply rails and voltage transients at selected test points. We present...
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
Transient Signal Analysis is a digital device testing method that is based on the analysis of voltage transients at multiple test points and on I DD switching transients on the supply rails. We show...
Modeling and simulating optical MEMS using Chatoyant (2007)
Timothy P. Kurzweg, Steven P. Levitan, Philippe J. Marchand, Jose A. Martinez, Kurt R. Prough, Donald M. Chiarulli
The use of MEMs technology has enabled the fabrication of micro-optical and micro-electro-mechanical systems on a common substrate. This has led to new challenges in computer aided design of optical...
Dept. of Computer Science (2007)
Donald M. Chiarulli, Steven Levitan, Rami P. Melhem, James P. Teza, Greg Gravenstreter
This paper presents a scalable electro-optical interconnection network architecture which is suitable for tightly coupled multiprocessors. The architecture is called a Partitioned Optical Passive...
A Fast Optical Propagation Technique for Modeling MicroOptical Systems (2007)
Timothy P. Kurzweg, Steven P. Levitan, Jose A. Martinez, Mark Kahrs, Donald M. Chiarulli
As designers become more aggressive in introducing optical components to micro-systems, rigorous optical models are required for system-level simulation tools. Common optical modeling techniques and...
Abstract Defect Detection Using Regression Analysis of Transient Signal Data (2007)
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
Transient Signal Analysis is a digital device testing method that is based on the analysis of voltage tran-sients at multiple test points and on I DD switching transients on the supply rails. We show...
1 Defect Detection Using Regression Analysis of Transient Signal Data (2007)
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
Transient Signal Analysis is a digital device testing method that is based on the analysis of voltage transients at multiple test points and on I DD switching transients on the supply rails. We show...
FOR MULTI-BIT DIFFERENTIAL CHANNELS (2005)
Jason D. Bakos, Jason D. Bakos, Donald M. Chiarulli, Bruce R. Childers, Steven P. Levitan, Patchrawat Uthaisombut, ...
This dissertation was presented by
Active Substrates for Optoelectronic Interconnect (2004)
Donald M. Chiarulli, Jason Bakos, Steven P. Levitan, Charles Kuznia
We present the design of an intelligent optoelectronic chip carrier (IOCC). This is an active package that is the basis for short haul, PCB[1] and MCM[2,3] level, optical interconnect. Our goal is a...
Lightweight Hierarchical Error Control Codes for Multi-Bit Differential Channels (2004)
Jason D. Bakos, Jason D. Bakos, Donald M. Chiarulli, Steven P. Levitan, Bruce R. Childers, Patchrawat Uthaisombut, ...
This proposal was presented by
Optoelectronic Multi-Chip-Module Implementation of a 64-Channel Fiber Switch (2002)
Jason D. Bakos, Donald M. Chiarulli, Steven P. Levitan
We present a demonstration prototype of an optoelectronic 3-chip OE-MCM module that implements a 64-channel non-blocking fiber optic switch. Each OE-switch-chip was implemented using Peregrine UTSI...
Gary Ray Livingston, Gary Ray Livingston, Bruce G. Buchanan, Donald M. Chiarulli, Tom M. Mitchell, Martha E. Pollack
This dissertation was presented by
Parallel Memory Addressing Using Coincident Optical Pulses. (1998)
Chiarulli, Donald M., Melhem, Rami G., Levitan, Steven P.
This research was a preliminary investigation of the applicability of coincident optical pulse techniques to hybrid electronic-optical computing systems. The results of the investigation are focused...
Coincident Pulse Techniques for Hybrid Electronic Optical Computer Systems. (1998)
Chiarulli, Donald M., Melhem, Rami G., Levitan, Steven P.
This research was an investigation of the application of coincident pulse techniques to multiprocessor interconnection networks. The research focused on three main areas: an examination of the...
Coincident Pulse Techniques for Hybrid Electronic Optical Computer Systems. (1998)
Chiarulli, Donald M., Melhem, Rami G., Levitan, Steven P.
This research is an investigation of the application of coincident pulse techniques to multiprocessor interconnection networks. The research focuses on three main areas: an examination of the...
Optoelectronic Cache Memory System Architecture (1998)
Chiarulli, Donald M., Levitan, Steven P.
Under this contract, we have designed and implemented an optoelectronic cache memory and interface to a page oriented optical memory system. This work demonstrated that an optical memory can be...
Associative Memory Study: Architectures and Technology (1998)
Levitan, Steven P., Chiarulli, Donald M., Katsuri, Amirtha, Kettering, Joan
This report summarizes current work in technologies and architectures for associative or "content addressable" memory. Associative memory is better suited for several specific tasks such as database...
Low Level Signal Processing for the Optoelectronic Memory System Interface (1998)
Chiarulli, Donald M., Levitan, Steven P.
This report describes the development and implementation of channel coding and error detection firmware and software for a prototype optical memory system. Specific accomplishments include the...
Reconfigurable Processor Employing Optical Channels (1998)
Majd Sakr, Steven P. Levitan, C. Lee Giles, Donald M. Chiarulli
We describe a reconfigurable computing architecture that exploits parallel optical channels to support fast reconfiguration and compare our architecture to configuration cache based designs Keywords:...
Characterization of CMOS Defects using Transient Signal Analysis,” DFT (1998)
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
We present the results of hardware experiments designed to determine the relative contribution of CMOS coupling mechanisms to off-path signal variations caused by common types of defects. The...
Reconfigurable Opto/Electronic Multiprocessor Interconnection Structures. (1997)
Chiarulli, Donald M., Levitan, Steven P., Melhem, Rami G.
This research expended our previous research in communications, control and arbitration for optical fiber technology to multiprocessor multi-stage interconnection structures. In particular, have...
Time and Frequency Domain Transient Signal Analysis for Defect Detection in CMOS Digital ICs (1997)
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
A novel approach to testing CMOS digital circuits is presented that is based on an analysis of voltage transients at multiple test points and I DD switching transients on the supply rails. We present...
Time and Frequency Domain Transient Signal Analysis for Defect Detection in CMOS Digital ICs (1997)
James F. Plusquellic, Donald M. Chiarulli, Steven P. Levitan
A novel approach to testing CMOS digital circuits is presented that is based on an analysis of voltage tran-sients at multiple test points and I DD switching transients on the supply rails. We...
Performance of On-Line Learning Methods in Predicting Multiprocessor Memory Access Patterns (1996)
Sakr, Majd F., Levitan, Steven P., Chiarulli, Donald M., Horne, Bill G., Giles, C. Lee
Shared memory multiprocessors require reconfigurable interconnection networks (INs) for scalability. These INs are reconfigured by an IN control unit. However, these INs are often plagued by...
Performance of On-Line Learning Methods in Predicting Multiprocessor Memory Access Patterns (1996)
Sakr, Majd F., Levitan, Steven P., Chiarulli, Donald M., Horne, Bill G., Giles, C. Lee
Shared memory multiprocessors require reconfigurable interconnection networks (INs) for scalability. These INs are reconfigured by an IN control unit. However, these INs are often plagued by...
Majd Sakr, Steven P. Levitan, C. Lee Giles, Bill G. Horne, Marco Maggini, Donald M. Chiarulli
Opto-electronic reconfigurable interconnection networks are limited by significant control latency when used in large multiprocessor systems. This latency is the time required to analyze the current...
Donald M. Chiarulli, Steven P. Levitan, Rami P. Melhem, James P. Teza, Greg Gravenstreter
This paper presents a scalable electro-optical interconnection network architecture which is suitable for tightly coupled multiprocessors. The architecture is called a Partitioned Optical Passive...
Optoelectronic buses for high-performance computing (1994)
Donald M. Chiarulli, Stephen P. Levitan, Rami G. Melhem, Manoj Bidnurkar, Robert Ditmore, Gregory Gravenstreter, ...
Modern computer buses are typically organized by the three functions of data transfer, addressing, and arbitrationlcontrol. In this paper we present a jiber-based bus design which provides optical...
A time domain approach for avoiding crosstalk (1993)
Chunming Qiao, Rami Georges Melhem, Donald M. Chiarulli, Steven P. Levitan
can he avoided by ensuring that a switch is not used by two connections simultaneously. In order to support crosstalk-free communications among N inputs and N outputs, a space domain approach dilates...
Demonstration of an All Optical Addressing Circuit, (1992)
Chiarulli, Donald M., Levitan, Steven P., Melhem, Rami G.
This experiment is based on two properties of optical signals, unidirectional propagation and predictable path delay. Using these properties, logic systems can be devised in which information is...
An all optical addressing circuit: experimental results and scalability analysis (1991)
Donald M. Chiarulli, Robert M. Ditmore, Steven P. Levitan, Rami G. Melhem
Abstract-In this paper, we present results from a demon-stration of both single and parallel selection in a one of four optical addressing circuit operating at 250 MHz using coinci-dent pulse...
Using coincident optical pulses for parallel memory addressing (1987)
Donald M. Chiarulli, Rami G. Melhem, Steven P. Levitan
multiprocessors are the most widely used parallel processing architectures. Unfortunately, these systems suffer from a memory/bus bandwidth limitation problem. For thedesigner of a hybrid...
The design of an automated personnel identification system /--by Donald M. Chiarulli. (1978)
Report (M.S.)--Virginia Polytechnic Institute and State University, 1978.
Diffractive Optical Propagation Techniques for Mixed-Signal CAD Tools
Timothy P. Kurzweg, Steven P. Levitan, Jose A. Martinez, Philippe J. Marchand, Donald M. Chiarulli
Computer Aided Design (CAD) tools for modeling optical computing systems use a variety of different optical propagation techniques. However, for modeling micro-systems, common optical modeling...