Inventor
DUVALL DALE R
US11 patents
⚠️ This page may combine multiple inventors who share the name “DUVALL DALE R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MEAD CORP
4 patentsUS4587621AMay 6, 1986
Device for electrical variable magnification of document image
MEAD CORP39 citations92
US4532602AJul 30, 1985
Device for electrical variable magnification of document image
MEAD CORP30 citations92
US4429333AJan 31, 1984
Document scanning system
MEAD CORP49 citations92
US4422100ADec 20, 1983
Document scanning apparatus
MEAD CORP43 citations92
RECOGNITION EQUIPMENT INC
3 patentsUS4013999AMar 22, 1977
Single read station acquisition for character recognition
RECOGNITION EQUIPMENT INC45 citations90
US4162481AJul 24, 1979
Adaptive correlator for video processing
RECOGNITION EQUIPMENT INC26 citations81
US4157533AJun 5, 1979
Independent channel automatic gain control for self-scanning photocell array
RECOGNITION EQUIPMENT INC15 citations73