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Stuart Scofield
Expert Firmware Engineer

Portland Metro Office

Education

  • BS Computer Systems Engineering, Oregon Institute of Technology

Recognition

    • 7 US Patents:
      • Media carrier (8,057,115
      • Early transparency detection routine for inkjet printing (6,994,432 and 6,685,313)
      • Back-branding media determination system for inkjet printing (6,585,341)
      • Advanced media determination system for inkjet printing (6,561,643)
      • Educatable media determination system for inkjet printing (6,425,650)
      • Two-stage media determination system for inkjet printing (6,386,669)

Interests / Obsessions

  • Hobby farm
  • Hiking
  • Kayaking
  • Travel / RV

Favorite Quote

  • "Life is God's art."

- Larry Norman

Expertise

  • Firmware architecture & design
  • Real-time system design, test, & debugging
  • Optical sensor applications
  • Motor control
  • Real-time multi-threaded systems
  • New product design and development (large and small scale)
  • Innovation with multi-discipline teams

Experience

  • 25 years design & developer of FW for various embedded systems
  • Architect: Interface language constructs to control and monitor printer servo, ink delivery and pen subsystems
  • Firmware development for printer side of Cricut Imagine
  • Co-inventor of media detection in HP Deskjet, PhotoSmart and All-in-One printers
  • Small and large scale printer products
    • Media detection
    • CD detection
    • Image-to-media alignment
    • Ink monitor
    • Print job start sequence controller
    • Media handling
  • Environmental data loggers
    • Entire firmware development
    • User interface
    • Data storage
    • I/O protocols
    • Low power mode
    • External device control
    • Multiple sensor input
  • I/O protocol support for GOES transmitter and OrbComm satellite transceiver
  • FX controller firmware for PC VGA-to-video card
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