Inventor
HENDRICKSON MELVIN C
US11 patents
⚠️ This page may combine multiple inventors who share the name “HENDRICKSON MELVIN C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZENITH RADIO CORP
7 patentsUS4292650ASep 29, 1981
Stv Subscriber address system
ZENITH RADIO CORP159 citations97
US4425647AJan 10, 1984
IR Remote control system
ZENITH RADIO CORP83 citations94
US4408225AOct 4, 1983
Subscription television decoder
ZENITH RADIO CORP46 citations91
US4377006AMar 15, 1983
IR Remote control system
ZENITH RADIO CORP36 citations91
US3943449AMar 9, 1976
Multi-speed ramp for a varactor tuning system
ZENITH RADIO CORP10 citations73
US4317228AFeb 23, 1982
Television receiver having multiplexed phase lock loop tuning system
ZENITH RADIO CORP5 citations61
US4156199AMay 22, 1979
Apparatus for shifting a tuning window
ZENITH RADIO CORP1 citations51
ZENITH ELECTRONICS CORP
4 patentsUS4460922AJul 17, 1984
Memory select system for an STV decoder
ZENITH ELECTRONICS CORP124 citations95
US4598313AJul 1, 1986
Television signal scrambling system
ZENITH ELECTRONICS CORP5 citations61
US4759061AJul 19, 1988
Technique for toggling coding mode in a television signal encoder
ZENITH ELECTRONICS CORP1 citations52
US4558360ADec 10, 1985
Decoder lockout defeat circuit
ZENITH ELECTRONICS CORP0 citations42