P

Inventor

HENDERSON JOHN G N

23 patents
⚠️ This page may combine multiple inventors who share the name “HENDERSON JOHN G N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RCA CORP

14 patents
US4402089AAug 30, 1983

Television tuning system with electronic frequency adjustment apparatus

RCA CORP62 citations93
US4422096ADec 20, 1983

Television frequency synthesizer for nonstandard frequency carriers

RCA CORP28 citations92
US4339827AJul 13, 1982

Automatic tuning circuit arrangement with switched impedances

RCA CORP47 citations89
US4349840ASep 14, 1982

Apparatus for automatically steering an electrically steerable television antenna

RCA CORP27 citations82
US4429415AJan 31, 1984

Signal-seeking tuning system with signal loss protection for a television receiver

RCA CORP24 citations81
US4342999AAug 3, 1982

Loop antenna arrangements for inclusion in a television receiver

RCA CORP28 citations81
US4317225AFeb 23, 1982

Channel identification apparatus useful in a sweep type tuning system

RCA CORP17 citations74
US4181916AJan 1, 1980

Liquid crystal channel number display responsive to ambient light level

RCA CORP8 citations74
US4536797AAug 20, 1985

Television receiver with auxiliary on-screen display

RCA CORP14 citations73
US4398303AAug 9, 1983

Signal-seeking tuning system with automatic bandswitching for a television receiver

RCA CORP12 citations73
US4390902AJun 28, 1983

Tuning display for a television receiver

RCA CORP16 citations73
US4387401AJun 7, 1983

Carrier detector apparatus useful in a multiband sweep type tuning system

RCA CORP15 citations73
US4291413ASep 22, 1981

Search type tuning system with direct address channel selection apparatus

RCA CORP9 citations73
US4254506AMar 3, 1981

Channel identification apparatus useful in a multiband sweep type tuning system

RCA CORP7 citations62

HITACHI AMERICA LTD

6 patents

HITACHI HOME ELECTRONICS AMERI

1 patent

GEN ELECTRIC

1 patent

HENDERSON JOHN G N

1 patent