CSL Member Profiles

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Now viewing 1 through 5 of 5 Attendees found.
  • Dave
    I came to CSL in July 1977 from the WU Department of Otolaryngology to work on a project with Charlie Molnar and Duck-On Kim. The work involved recording of human and animal auditory responses from the brain stem. We used a customized circuit board with an A/D converter and a special-built biological preamplifier constructed by Ron Cox. Further processing employed Phase II Macromodules and TI-980B mini-computers. Our other collaborator was Larry Coben, MD of the WU Neurology. department. I left in June 1980 when my funding ran out.
  • Alfred
    Lab Association: CSL
    I've discovered I'm a garrulous old gaffer. Below I have my yarn about my tenure at CSL. In terms of my professional career, I put a tale, "The first time we ran the VHDL simulator, it taught us something," on my LiveJournal seldom-used blog. I put a link in my "website" property above. -- I arrived at Wash U in 1967 from teaching in Hong Kong. I had absorbed working rudiments of street Cantonese there, and was taking Mandarin with Henry Fenn. So Wes Clark, who was interested in Chinese, gave me a CSL job for the summer of 1968. Calli-Do is my second most often quoted bragging line from my career. After all, in the same year that Engelbart is alleged to have invented the mouse, I was able, with the rich support surrounding the LINC, to integrate a pen-based user interface using just the LINC and off-the-shelf products like a Tek memory scope and a TelAutograph sender. [more to come]
    Years worked at labs: 1968
    Projects worked at labs: summer 1968: Calli-Do, a drillmaster for students practicing their chinese writing. Students were able to write with a pen on a Victor ElectroWriter. The system decoded the FM angle signals from the ElectoWriter pantograph servo-senders into a X-Y coordinate sequence, and then checked the direction history from this against acceptors based on the direction histories expected in correctly executed chinese strokes. Chinese characters are composed of strokes; the direction sequence within a stroke is consistent despite differing scale and placement on the [square containing the character]. There is a report, CSL TM75 that explains what was done. The second summer, 1969, I sat and my desk and scratched my head in search of a dissertation topic. Nothing came of this immediately but yet at the end of four years I would have graduated save for the arrival of Ian Rhodes who took over as my advisor and propelled me to take another year and produce a much more significant and publishable result.
    Projects worked since labs: Too many. NavStar GPS: the first time an airplane flew around Yuma, Arizona, computing where it was by listening to GPS satellites, the computation of its location and track was computed in a program that I signed out of Intermetrics, Inc., where it was developed, as its 'Chief Programmer.' The VHSIC Hardware Description Language (VHDL): Deputy Program Manager and keeper of the (support software) System Specification. I fought the government project engineer off a demand that we freeze the details of the inter-segment interfaces early, so we could do progressive refinement across the board. I sat on the heads of the SIGPLAN types in our company until they would listen to the chip designers from TI and the computer designers from IBM (both subcontractors to Intermetrics) to learn what the job of this new 'description language' was. The language eventually took wing and had a productive life in the commercial world of digital device design, thanks to the need of the emerging silicon synthesis tool industry's need for a neutral interface to low-level design and foundries. WAVES: I led/coached the technical effort for this test-pattern-standard development. Under my influence, we developed a representation that met the Government's desire to be a VHDL application. This was far too academic for the real world, and industry went other ways. MHDL: Microwave Hardware Description Language: a major disaster. I didn't understand what my lead language designer was getting me into when he said we should base this on a 'functional language.' My image was of what I later learned is called 'constraint programming.' His was HASKELL and the like, with a clear/single output variable in the I/O profile of each function. We needed something much more like a simultaneous-equation solver as the core semantic, and this language (which I had managed to secure the contract to develop) went nowhere. WAI-ARIA: My last gig was as the chair of the 'Protocols and Formats' Working Group within the Web Accessibility Initiative. I led this group and a predecessor group for ca. 12 years. Applying the inter-specialty mediation moves that I developed on VHDL. WAI-ARIA was a low-impact way to decorate the HTML constructs that visually-oriented designers wanted to use with enough semantics so that the visually and motor impaired users for whom point and click didn't work could gain functional use of the web content and applications. Rich Schwerdfeger from IBM Austin provided the concept and the funding to make this go, but I bought into his idea and provided the bureaucratic grease so that the approach was accepted and standardized in W3C.
    Influence on career: GPS: working on a LINC with 2K? of 12-bit memory at CSL make me a pig in shit with the 16-bit minicomputers and a rationalized-Fortran compiler chain that we used to develop the XUSCP (X-Unaided System Computer Program) for the Magnavox X-Set that was the first to flight test in Yuma. After GPS there was work on JTIDS, the Joint Tactical Information Distribution System that I had a key hand in winning. This was heavy-duty DSP for the day, and my track from Jerry Cox and Tom Goblick's courses, the CSL, and three years at Lincoln Lab working spread-spectrum for Air Traffic Control and Space Communications put me in shape to be influential in this program. VHDL: Many ways. But the Macromodules that were rackable boxes interconnected by cables were still in my life in the '80s as a market develped for macrocell designs that were offered on a "gimme a floorplanning region of your impending chip and the ability to place my I/O's and I'l give you the mask geometry that goes in that floorplanning region and performs {DFTs, trancendental functions by chordic algorithms, you name the DSP block}. The signal-flow architecture was already in my head. Consulting with the Trace Center, U.Wisc, for disability access to the technologies coming out of NSF grants to the supercomputing community. Here my background at CSL and VHDL got me the job as accessibility gadfly to the supercomputing community, because I could understand their research projects and political proposals. I opposed Ian Foster's attempt to be another Tim Berners-Lee with "The Grid" and advocated for a more amorphous architecture. Note the popular talk today about "the cloud" and not "the grid."
    Personal Information Greetings in particular to Wes Clark, Jerry Cox, Don Snyder, and Fred Moses.
  • Ken
    Lab Association: CSL
    I was the IBC (CSL + BCL) Administrative Officer from 1989 until 2001.
    Years worked at labs: 1989
    Projects worked at labs: Administrative Officer for IBC (CSL and BCL)
  • Robert
    I worked at CSL during the summer of 1967. I completed a master's thesis under Donald Wann, and Charles Molnar and Wes Clark were my examiners. Subsequently, I completed the PhD at U.C. Berkeley. I then taught at Princeton. One of my publications was inspired in part by work on Macromodules. It was titled "Towards a Theory of Universal Speed-Independent Modules", IEEE Trans. on Computers, 1974. I currently teach at Harvey Mudd College and run a project called "Intelligent Music Software".
  • David

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