Inventor
WHEELER ROBERT C
11 patents
⚠️ This page may combine multiple inventors who share the name “WHEELER ROBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GTE SYLVANIA INC
6 patentsUS4110790AAug 29, 1978
Video processing system providing gain control, aperture control, and black level control
GTE SYLVANIA INC25 citations81
US4042858AAug 16, 1977
Television receiver protection circuit
GTE SYLVANIA INC22 citations81
US4081838AMar 28, 1978
Contrast control circuitry for a video processing system
GTE SYLVANIA INC15 citations73
US4080627AMar 21, 1978
Aperture correction circuitry for a video correction system
GTE SYLVANIA INC13 citations73
US4021849AMay 3, 1977
Television receiver raster blanking system
GTE SYLVANIA INC9 citations73
US4069505AJan 17, 1978
Automatic peaking control circuitry for a video processing system
GTE SYLVANIA INC12 citations71
WELCH ALLYN INC
4 patentsUS4532918AAug 6, 1985
Endoscope signal level control
WELCH ALLYN INC198 citations98
US6045238AApr 4, 2000
Illumination assembly for an optical viewing device
WELCH ALLYN INC75 citations95
US4539586ASep 3, 1985
Connector module for video endoscopic system
WELCH ALLYN INC89 citations94
US4607621AAug 26, 1986
Endoscopic apparatus
WELCH ALLYN INC41 citations92