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I started programming at MIT when Spacewar was a new game! My
skills grew with the field. I spent more than 15 years at DEC
designing computers and building CAD tools to help others design chips
and computers.
When I left DEC I consulted for several years and then helped found
NetPhone where we made a telephone system on a single card.
I was the Director of Software Development and wrote the embedded phone system software. (Patent
5,875,234
is the work of myself and Steve Staudaher the NetPhone hardware designer.)
The phone system server was controlled by client applications, which communicated with it over the network.
NetPhone got sold to Sonoma Systems and Nortel then bought Sonoma.
Before, during and after my corporate embedded career I did freelance work.
This work usually involved combining programming skills with my human interface design skills.
I developed software for the leading
Air Data Computer
for sailplanes. I wrote programs to typeset an annotated bibliography.
Later I evolved an interest in Web publishing, especially the infrastructure for small data driven applications.
The Photo Library and
Mailing Lists
of this site are examples of such applications.
Another application I built is used at
www.flavorandfortune.com.
Among other tasks that site presents book reviews and articles out of a database. The application allows the
site managers to add and remove reviews without writing web pages.
Most recently I have become involved in Mesh Networking: Using
groups of computers each with a low power radio. These computers cooperate in
sensing and data communications applications.
I am expert with
802.15.4 radios, having written drivers, messaging services, network
protocols, test and evaluation software etc.
I have worked for
several large players in the field including
Sensicast,
Crossbow
and GE Global Research which
resulted in an IEEE paper. At
Sensicast I built routers and sensing systems for a
variety of tasks including
CMU's Lancaster Farms
irrigation sensing,
vehicle tracking
systems and motor condition monitoring. I also had a leading
role in Sensicast's artwork monitoring and OEM
sensor systems. One project at Sensicast will monitor sewers for overflow on a mesh
network that must span a city. At Sensicast I built a set of I/O cards
that enable Sensicast's
Smart Sensors.
At Erallo Systems I have been
involved in many Wireless sensor projects. Featured on the web site is
the Wearable Body
Unit. I wrote the TinyOS embedded software that runs
in this device and developed the server software that the Body Unit reports to.
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