Family of Intrisically Absorptive Electronic Filters
Abandoned 11/10 - A novel improvement in RF filter design that offers impedance matching at both input
and output, burning off unwanted power as heat, rather than reflecting it back into the source.
Digital Drive of 3HMS
Withdrawn 05/06 - An improvement to the electrical drive circuitry for below spectrometer. Offers more
accurate waveforms, which are far easier and less costly to produce. Runs at much lower power than prior art.
Invention is configurable to manipulate electric field shape for optimal performance.
Fan Blade Construction of 3HMS
Withdrawn 05/06 - Construction improvement to below where orthogonal blades are used as RF electrodes.
This greatly reduces fabrication costs, reduces interelectrode capacitance, and reduces vacuum gradients.
Hyperbolic Horn Helical Mass Spectrometer (3HMS)
#7,388,196 awarded 6/17/08 - A novel ion mass filter utilizing a rotating electrical RF field to force ions into a
helical trajectory. Impact radius is a function of mass. The 2D target allows for simultaneous spectral detection.
For wider band operation the RF frequency can be swept. A horn-shaped entrance field solves the problem of limited
entrance angle and increases sensitivity by a hundredfold.
Method and Apparatus for Measuring Illumination Uniformity of a Liquid Crystal Light Valve Projector
#5,793,441 awarded 8/11/98 - Design of an automatic system for correcting illumination nonuniformities found in
liquid crystal projection devices. A CCD camera provides visual feedback for control of variable gain and offset
amplifiers in the video signal chain using special software algorithms.
Bias Drive and Noise Reduction in Image Projectors
#5,471,255 awarded 11/28/95 - Circuit and method for reducing the image noise caused by ILA bias waveforms. Patent
describes use of a frequency synthesizer to lock the ac waveform to the vertical sync of the incoming video signal
thereby removing asynchronous harmonic beat patterns. Also covers a technique for generating an optimized waveshape
by applying an ILA equivalent circuit in a feedback network.
Dynamic Gamma Correction Circuit for use in Image Projectors
#5,461,430 awarded 10/24/95 - Circuit and method for compensating the non-linear grey scale of a CRT-ILA based
projection display. Circuit has an inverse non-linear gain characteristic that corrects the total system to a
television equivalent. Patent also describes a method for dynamically changing the gain characteristic to compensate
for ILA variations.
The Third Annual Positive Feedback Online's Writers' Choice Awards 2006
FryBaby portable burn-in generator chosen as product of the year (one of several).
EnjoyTheMusic Blue Note Award 2005 for UFO
The novel UFO turntable strobeclamp was honored for its innovation.
ECN/Xilinx Design Engineering Achievement Awards 1996
Second place - Entry was the design of my PD-1 photodiode meter. Prize was FPGA design software valued at $1000.
Apex Microtechnology PB50/PB58 Design Contest 1992
First place - Prize was a notebook computer.
Motorola TMOS Design Idea Contest 1985
Honorary mention - Idea was published in Motorola TMOS application manual.