Inventor
HILBERT FRANCIS H
US12 patents
⚠️ This page may combine multiple inventors who share the name “HILBERT FRANCIS H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOTOROLA INC
11 patentsUS4377728AMar 22, 1983
Phase locked loop with improved lock-in
MOTOROLA INC18 citations73
US4371747AFeb 1, 1983
AM Stereophonic decoder
MOTOROLA INC9 citations73
US4338491AJul 6, 1982
Compatible AM stereophonic system
MOTOROLA INC15 citations73
US4218586AAug 19, 1980
Compatible AM stereo broadcast system
MOTOROLA INC15 citations73
US4192968AMar 11, 1980
Receiver for compatible AM stereo signals
MOTOROLA INC15 citations73
US4172966AOct 30, 1979
AM stereophonic receiver
MOTOROLA INC11 citations73
US4164623AAug 14, 1979
AM stereo receiver with improved correction signals
MOTOROLA INC8 citations73
US4159396AJun 26, 1979
AM stereo receiver having signal-controlled corrector
MOTOROLA INC9 citations73
US4159398AJun 26, 1979
Stereo presence signal for an AM stereo system
MOTOROLA INC18 citations73
US4406922ASep 27, 1983
Stereo broadcast system
MOTOROLA INC5 citations62
US4170716AOct 9, 1979
AM stereo receiver with correction limiting
MOTOROLA INC6 citations62