Inventor
HOFFRICHTER INGO
DE7 patents
⚠️ This page may combine multiple inventors who share the name “HOFFRICHTER INGO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HELL RUDOLF DR ING GMBH
6 patentsUS4623973ANov 18, 1986
Method and apparatus for the recognition of hues and colors
HELL RUDOLF DR ING GMBH67 citations94
US4649423AMar 10, 1987
Method and circuit arrangement for selective correction of hues and colors
HELL RUDOLF DR ING GMBH23 citations81
US4136360AJan 23, 1979
Apparatus including a circuit arrangement for adjusting the color signal levels of a white dot
HELL RUDOLF DR ING GMBH23 citations81
US4403249ASep 6, 1983
Apparatus for mixing image signals to obtain a printing master
HELL RUDOLF DR ING GMBH9 citations72
US4096519AJun 20, 1978
Circuit arrangement for resetting the signal level of a darkest area of a color or monochrome image reproduction apparatus
HELL RUDOLF DR ING GMBH14 citations72
US4631579ADec 23, 1986
Method and apparatus for the production of color separations for single color printing
HELL RUDOLF DR ING GMBH11 citations69