Barcode technology
HD Barcode
Invented a high-density machine-readable symbology and developed core technology for symbol generation, reading, security, and cross-platform deployment.
Selected projects
Products, systems, and technical investigations
The projects below are starting points. Each can eventually become its own detailed page with diagrams, photographs, technical history, and lessons learned.
Machine vision
Barcode verification systems
Led software development for commercial verifier products used to measure and grade linear and two-dimensional barcodes under industry standards.
Algorithms
Reference-grid and grading investigations
Designed controlled tests to understand why nominally equivalent implementations can produce different sampling grids and different quality measurements from nearly identical images.
Software product
ZGANTT
Sole developer of a long-running project-management application maintained across several languages, operating systems, and generations of development technology.
Embedded systems
Microcontroller and FPGA products
Developed products using Microchip PIC, Parallax SX, Intel microcontrollers, Xilinx and Actel FPGAs, custom protocols, device drivers, and hardware-aware software.
Language systems
Compiler development
Developed a compiler for a new programming language, including the particularly difficult transition to a compiler written in the language it compiled.
Legacy systems
DOS TSR and segmented-memory software
Built low-level software in environments where interrupt handling, memory segments, coexistence with other resident programs, and severe resource limits all had to be managed explicitly.
Research engineering
Georgia Tech Research Institute
Contributed broad software and systems experience to applied research projects requiring practical implementation rather than theory alone.