(formerly AT&T)
Bell Laboratories
Multimedia refers to the ability to integrate voice, graphics, text
and video seamlessly. It is a multibillion dollars/year business, and
is growing rapidly.
The objective of this seminar is to
1. provide an understanding of the current and emerging
multimedia technologies,
2. describe the technical issues and current solutions,
3. review the strategies and industry trends to implement it, and
4. identify the standards and state-of-the-art capabilities and
product offerings.
The seminar outline is as follows:
I. The Multimedia Concept
1. Definition
2. Technical Requirements
3. Applications
4. Major Players
II. Multimedia Technical Issues
1. Storage Requirements
2. Transport Requirements
3. Performance Tradeoffs
III. Video Compression Techniques
1. Lossy Compression Techniques
2. Lossless Compression Techniques
3. Hybrid Compression Techniques
4. Hardware-Assisted Video Compression
5. Software-Assisted Video Compression
IV. Transport Platforms for Networked Multimedia
1. FDDI
2. Frame Relay
3. Asynchronous Transfer Mode (ATM)
V. Implementation Issues
1. Hardware Platforms and Software Tools
2. Multimedia Standards and their Status
3. Multimedia PC
4. The World-wide Web
5. Authoring Systems
6. Product Offerings
Presenters:
Suresh Rajgopal,
Intel Corporation, Santa Clara, CA
Sachin S. Sapatnekar, Iowa State University, Ames, IA
Computer System Security
Presentors:
James Davis and
Doug Jacobson, Iowa State University
Click here for brief biography of instructors or
on there names above for a view of their personal web pages.
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Morning Session: Introduction to Computer System Security
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As we move into the mid 1990's, we are clearly increasing our
dependence on computers and computer networks for access to
information. Network traffic on the Internet has shifted to an
exponential growth rate, and it will continue to accelerate as new
operating systems and on-line services add millions of users to the
Internet. The Internet has been a carrier of private correspondence
for decades, and is now being used to carry financial transactions and
other types of sensitive information.
The combination of the easy accessibility of the Internet and the lack
of agreed-upon security techniques has made it difficult for parties
to engage in secure transactions. Further, as the sophistication of
publically available "hacker" tools improves, it is becoming difficult
to protect information located on private networks connected to the
Internet. This session provides a background in computer security
that will enable attendees to understand important issues and
terminology in computer security. Specific topics include: 1.
Introduction (resources; types of security threats; threat
assessment), 2. Cryptography (simple ciphers; RSA; DES; IDEA), 3.
Key-Based Protocols (private and public keys systems; key management;
Kerberos; X.509), and 4. Information Models (military lattice & BLP;
trusted systems; evaluation of security mechanisms).
Audience: anyone interested in learning the basics of computer
security.
Outline:
1. Introduction
* course outline
* increasing importance of computer security
* security resources (net sites, companies, books)
* types of threats
* security plan; threat assessment
2. Cryptography
* confusion and diffusion; complexity; secret algorithms vs secret
keys
* simple substitution ciphers
* RSA, DES, digital signatures
3. Key-Based protocols
* authentication
* private & public key cryptosystems
* key management & distribution
* Examples: Kerberos; X.500/X.509
4. Information Models
* MLS and other models
* trusted systems
* common criteria for evaluating systems
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Afternoon Session: Current Technology in Computer System Security
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This session is focused on current solutions to computer security
problems. We will discuss many of the methods used to attack a
networked computer, along with countermeasures ranging from simple TCP
wrappers to more complex solutions, like authentication using X.509 or
Kerberos.
Audience: Anyone interested in the technological aspects of protecting
networked computers. It would be beneficial to have some exposure
to computer security (perhaps through hands-on experience, or
the morning short course)
Outline:
1. Introduction
* course outline
* discuss example system for the afternoon session
(company with small network of UNIX boxes; sensitive
data; public web site)
2. Common attacks & simple countermeasures
* spoofing, worms, virus, password guessing, denial of service
* SATAN, RSCAN
* sniffers
* one-time passwords
* TCP wrappers, smap
3. Firewalls
* screening routers
* gateway topologies
* limitations
4. Secure email: PEM and PGP
* Email, POPmail, DNS
* Mail forgery
* Secure Mail (PGP, PEM)
* telnet, FTP
* Digital Cash
5. X.500 & X.509, Kerberos
6. Commerce on the Internet
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Instructors:
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James Davis and Doug Jacobson are Associate Professors in the
Department of Electrical and Computer Engineering at Iowa State
University. Both teach graduate courses in computer security and are
working on funded research projects in MLS & X.500, secure bridges,
and denial of service. Drs. Davis and Jacobson are senior members of
IEEE.
INTEGRATED CIRCUIT BROADBANDING
Presentors: John Choma, Jr. & David A. Weldon
(click here for a biography)
Department of Electrical Engineering-Electrophysics
University of Southern California
Los Angeles, California 91773-3736
(213) 740-4692
j.choma@ieee.org
(Half-day/ afternoon)
This tutorial addresses the theoretical and practical circuit and
system concepts that underpin efficient and insightful network
broadbanding strategies. It is intended for engineers who wish to
understand the concepts that underpin the stability, parametric
sensitivity, and the circuit frequency response properties of
practical broadbanded analog networks. Since many of the problems
that underpin high speed digital circuit design are a subset of the
analysis and design dilemmas confronted by wideband analog circuit
designers, the tutorial is also germane to high speed digital and
mixed mode (analog and digital) circuit design.
The tutorial investigates circuit broadbanding principles and methods.
The prudence of current mode signal processing, as opposed to voltage
mode processing, is clearly established in terms of theoretically
sound signal flow concepts. The response attributes and limitations
of the canonic cells of wideband circuit architectures are disclosed.
Included among these cells are input stage transconductors, current
mirroring current amplifiers, traditional and folded cascodes,
Darlington current gain amplifiers, charge neutralized differential
architectures, and active shunt peaking stages. These wideband cells
are utilized to present detailed designs of a high frequency
operational amplifier and a broadband radio frequency (RF) amplifier
that features low voltage operation.
The topics for discussion include the following.
Basic Broadbanding Strategies
Voltage -To- Current Conversion
Interstages
Output Stages
Current Mode Non-Inverting Operational Amplifier
Current Mode Wideband RF Amplifier
Charge Neutralization Of Differential Amplifier
Design for Test of Analog and Mixed-Signal Circuits
Presentors:
Ramesh Harjani and
Bapiraju Vinnakota
Department of Electrical Engineering
University of Minnesota
Rapid advances in technology have led to a significant increase in
device density in VLSI circuits. Test times now form a large fraction
of the total design cost. This is more pronounced for analog and
mixed-signal integrated circuits. In an integrated circuit,
manufacturing errors cause global parameter variations or local point
defects. Global variations can often be detected using process
monitoring structures. The purpose of a manufacture-time IC test
process is to verify performance and detect faults caused by local
defects. For a `good' design in a mature manufacturing process, the
goal of test is to identify faulty components and prevent them from
being used in the next level of the production process. A design for
test method redesigns a circuit to improve fault coverage and/or
reduce other test costs. In this tutorial we first, examine test
issues particular to analog and mixed-signal ICs. We then present some
circuit specific techniques for common macro- and micro-modules.
Following which we describe some more general DFT techniques. The
tutorial concludes with a brief summary.
Multimedia Vidoeconferencing Standards Developments
Presentor: K. R. Rao
(No description received from the organizer)
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