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Filtering by: Creator Witcraft, Don A. Remove constraint Creator: Witcraft, Don A. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Design and Implementation of a Wearable Walking Navigation Assistance System for the Vision Impaired

    Creator:
    Sylwester, Sean T.
    Abstract:
    Few navigation-assistance technologies for vision impaired individuals are practical due to inhibiting factors such as cost, comfort, convenience, and overall usefulness of the assistance. This thesis will present the design and implementation of a navigation assistance system intended to address these concerns. The presented system improves on existing technologies by...
    Resource Type:
    Honors College Thesis
    Full Text:
    Design and Implementation of a Wearable Walking

  • Wireless Charging System Using Inductive Coupling

    Creator:
    Waters, Allen T.
    Abstract:
    A wireless power transfer system using inductive coupling was designed and implemented as part of a three-member project team. The system uses coupled magnetic fields at a frequency of 606kHz to transfer electromagnetic energy from a charging base to the batteries of portable devices. It succeeded in transmitting power to...
    Resource Type:
    Honors College Thesis
    Full Text:
    Abstract approved: _______________________________________________________ Roger Traylor A

  • The Effectiveness of Using Robotics for Career Technology Education in a Middle School STE(A)M Course

    Creator:
    Bodle, Ernie
    Abstract:
    Using robotics in education allows students to become familiar with multiple topics in science, technology, engineering, and mathematics (STEM). With the use of robotic educational tools in the 8th – 12th grade classrooms, such as Sphero, Anki Cozmo, and Lego Mindstorms, few devices allow students to build the robots’ electrical...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: The Effectiveness of Using Robotics for Career Technology Education in a Middle School STE(A)M

  • Experimental verification of a mismatch-shaping DAC

    Creator:
    Hudson, William Forrest, 1971-
    Abstract:
    Delta-sigma data converters have gained popularity in both analog-to-digital and digital-to-analog converters (ADCs and DACs) due to their simplicity, high linearity and immunity to many analog circuit imperfections. These data converters include features such as oversampling, noise-shaping, and (historically) single-bit quantization. Single-bit converters are preferred for their inherent linearity. This...
    Resource Type:
    Masters Thesis
    Full Text:
    : Experimental Verification of a Mismatch Shaping DAC. Abstract approved: Richard Schreier Delta-sigma data

  • Energy efficient communication across on-chip wires in digital CMOS

    Creator:
    Postman, Jacob
    Abstract:
    For the past half century, CMOS process scaling has followed Moore's law, approximately doubling transistor density every 18 months. While locally routed wires have generally scaled with transistor size, longer wires have scaled at a slower rate and in some cases have grown larger as chip size and complexity have...
    Resource Type:
    Dissertation
    Full Text:
    success of the project. Don Heer has been a constant mentor and friend to me from my days as an

  • Current-feedthrough cancellation technique for current-mode T/H circuits

    Creator:
    Young, David Y. W.
    Abstract:
    In this paper, an analysis of the clock-feedthrough effects in switched-current (SI)' circuits will be presented. The clock-feedthrough effects caused by the non-ideal characteristic of MOS switches when they are turned off limit the accuracy of the analog track-and-hold (T/H) circuits. A model to analyze and characterize this effect is...
    Resource Type:
    Masters Thesis
    Full Text:
    when they are turned off limit the accuracy of the analog track-and-hold (T/H) circuits. A model to

  • Flexible dual TCP/UDP streaming for H.264 HD video over WLANs

    Creator:
    Zhao, Jing
    Abstract:
    High Definition video streaming over WLANs faces many challenges because video data requires not only data integrity but also frames have strict playout deadline. Traditional streaming methods that rely solely on either UDP or TCP have difficulties meeting both requirements because UDP incurs packet loss while TCP incurs delay. This...
    Resource Type:
    Masters Thesis
    Full Text:
    while TCP incurs delay. This the­ sis proposed a new streaming method called Flexible Dual-TCP/UDP

  • Location Privacy-Preserving Strategies for Secondary Spectrum Use

    Creator:
    Grissa, Mohamed
    Abstract:
    The scarcity of wireless spectrum resources and the overwhelming demand for wireless broadband resources have prompted industry, government agencies and academia within the wireless communities to develop and come up with effective solutions that can make additional spectrum available for broadband data. As part of these ongoing efforts, cognitive radio...
    Resource Type:
    Dissertation
    Full Text:
    emerged as an essential technology for enabling and promoting dynamic spectrum access and sharing, a

  • A methodology for efficient substrate noise estimation from large scale digital circuits in mixed signal SoC's

    Creator:
    Held, Martin A.
    Abstract:
    A methodology for rapid estimation of substrate noise generated by digital circuitry in mixed-signal circuits is presented. This methodology is incorporated into the Silencer! framework, and also provides for future improvements including pre-layout noise estimation. Measurements of a test chip fabricated in the TSMC o.25[mu]m heavily doped logic process validate...
    Resource Type:
    Masters Thesis
    Full Text:
    THE THESIS OF Martin A. Held for the degree of M.9'ster of Science in Electrical and Computer

  • Designing multimedia extensions for configurable processors

    Creator:
    Zier, David A.
    Abstract:
    The purpose of this thesis is to explore the design of a multimedia extension Instruction Set Architecture (ISA) for a reconfigurable processor. An Extendable Multimedia Module (EM3) was designed as an optional module for X32V. X32V is a prototype configurable processor simulator developed at Oregon State University by John Mark...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF David A. Zier for the degree of