Inventor

STUBBS GRAHAM S

7 patents

⚠️ This page may combine multiple inventors who share the name “STUBBS GRAHAM S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OAK INDUSTRIES INC

4 patents

US4454543AJun 12, 1984

Dynamic video scrambling

OAK INDUSTRIES INC112 citations95

US4323922AApr 6, 1982

Television coding system with channel level identification

OAK INDUSTRIES INC151 citations95

US4340906AJul 20, 1982

Video signal coding by video signal polarity reversal on the basis of brightness level comparison

OAK INDUSTRIES INC123 citations93

US4633309ADec 30, 1986

Cable television master/slave decoder control

OAK INDUSTRIES INC66 citations90

EIDAK CORP

2 patents

US5003590AMar 26, 1991

Encoding an optical video disc to inhibit video tape recording

EIDAK CORP78 citations93

US5394470AFeb 28, 1995

Horizontal pulse augmentation of a video signal

EIDAK CORP40 citations89

OAK IND

1 patent

US4336553AJun 22, 1982

Method of coding audio and video signals

OAK IND128 citations93