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Office: Pacific Development and Technology, LLC 999
Commercial Street, Suite 205, Palo Alto, Ca 94303 E-mail: jwallerius@pacdel.com Telephone: +1-650-320-8841
(USA); (650)
279 4496 johnwallerius@pacdel.com
Pacific
Development and Technology LLC ·
Co-Founder 2003 ·
Chief Technologist 2003-2006 ·
Developed advanced preprocessing, feature extraction and
classification software system for real-time classification of physiological signals,
such as EEG, EMG, EOG, ECG. RadioCosm, Mountain View, CA 2000-2003 Founder Chief
Executive Officer August 2000 to March 2001 Chief
Technical Officer March 2001 to present ·
Founded and
obtained funding for VC backed startup developing software for wireless
cellular network operators. Developed initial business plan.
·
Managed the
design and implementation of a sophisticated cellular network modeling
package for wireless network system optimization. Co-architected Windows
VC++/XML.COM based software package. Co-authored a patent application on the
software architecture. ·
Specified the
design of the wireless network simulation algorithms, including multipath and
shadow fading models, mobility models, handover, frequency hopping, WCDMA,
interference modeling, GSM air interface, etc. ·
Implemented
novel prototype software for automobile traffic simulation using publicly
available road network data. ·
Point person
for customer presentations, demonstrations, and requirements definition.
·
Conceived and
implemented company technical strategy. ·
Hired and
managed the Wireless Network Simulation team, consisting of EE Ph.D. and
Masters level communications system engineers. Silicon
Spice,
Mountain View, CA Senior
DSP Architect April 1999 – July 2000 ·
Contributed
to the architectural design of a VoIP chip which performed multiple speech
compression algorithms on up to several hundred channels of voice data.
Performed algorithm analysis for a wide range of compression and encryption
algorithms, including 3-DES. Silicon
Wireless,
Mountain View, CA November
1995 – March 1999 Member
of Technical Staff (DSP Engineer), April 1994 – November 1998 Manager,
RF Modeling Group, November 1998 – March 1999 ·
Invented and
patented novel signal processing algorithms for macrodiverse combining of GSM
signals. Performed algorithm design and simulation and implemented real time
fielded software employing a novel application of a SOVA MLSE equalizer. Five
US patents awarded. ·
Managed the
RF Modeling group. Delivered analyses of macrodiversity system gain to potential
customers and investors. Compression
Labs,
San Jose, CA Software
Engineer, April 1994 – November 1995 ·
Conceived and
initiated in-house acoustic echo cancellation project. Performed analysis and
conducted management meetings to obtain support for the project.
·
Performed
algorithm simulation study for acoustic echo cancellation system and noise
suppression algorithm, in Matlab and C. ·
Implemented a
complex LMS filter on Motorola 56000 for use in the sub-band acoustic echo
canceller to bue used in the next release of the CLI videoconferencing audio
sub-system. ·
Co-authored
the software specification, design and test documents for the audio
subsystem. Managed the scheduling of audio software team activities.
Moscom/Votan, Pleasanton, CA Senior
DSP Engineer, January 1993 - March 1994 ·
Ported
real-time speech recognition algorithms from a TMS320C10, 6809 based single
channel PC board to a C50 based 4-channel board. Implemented the interface to
a new proprietary dynamic time warping chip implemented inXilinx, for
continuous speech recognition. Interfaced speech recognition functions to a
Windows-based PC driver. This system is currently being sold by Seimens in
Germany and is being used by travel agencies for automatic processing of
customer telephone inquiries. Comdisco
Systems,
Foster City, CA (now called the Alta Group, a subsidiary of Cadence) Senior
Software Engineer, October, 1991 - January, 1993 ·
Designed and
implemented compiler/simulators for a high-level CAD tool for DSP systems.
Input languages were Synopsys state machine specification language, and
Synopsys equation format, for specifying combinational logic. These
compilers/simulators allow for fast behavioral simulation of DSP algorithms
in a graphical block diagram environment. ·
Managed
software pre-releases to key customers. GTE
Government Systems,
Mountain View, CA Systems
Engineer, March, 1986 - October, 1991 ·
Implemented a
real-time PSK demodulator in assembly language for a signal search system.
The demodulater used a phase locked loop implemented with 16-bit arithmetic.
·
Implemented a
flexible digital demodulator for a real-time signal search system using
TMS320C30 DSP chips and 80386s. ·
Worked in a
team of four engineers to create a system for digital radio signal search.
Areas of responsibility included: ·
Organizing
and coauthoring the signal processing section of the winning proposal. ·
System contol
flow and data structure specification and implementation in C. ·
Codeveloping
algorithms for discriminator and PLL digital demodulators. ·
Integration
of modules into a functioning sytem (approx. 10,000 SLOCs) ·
Developing a
sophisticated user interface using YACC and Lex.
·
Performed
Technical management role on an image processing project.
·
Simulated and
implemented algorithms for real time spread spectrum signal acquisition.
Developed a novel frequency domain algorithm to correct for carrier
uncertainty. ·
Developed a
pattern recognition algorithm on a PC to analyze real-time input from a
spectrum analyzer connected to the computer via GPIB.
Naval
Personnel R&D Center, San Diego, CA Programmer,
1983-1985 ·
Designed and
implemented experimental control software in a real-time UNIX environment,
for EEG experiments on human subjects. ·
Implemented
DSP data analysis algorithms such as FFTs and digital filters on a Masscomp
array processor, for use in analyzing brain-wave data.
·
Wrote a video
game for training Naval Tactical Action Officers in missile defense.
BS
Computer Engineering, December, 1985, University of California, San Diego Minor: Signal Analysis A.S
in Computer Science, 1982, Grossmont Junior College, San Diego,
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