Inventor
HARFORD JACK R
US36 patents
⚠️ This page may combine multiple inventors who share the name “HARFORD JACK R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RCA CORP
22 patentsUS4216523AAug 5, 1980
Modular printed circuit board
RCA CORP37 citations92
US4185299AJan 22, 1980
Synchronization signal separator circuit
RCA CORP33 citations92
US4275362AJun 23, 1981
Gain controlled amplifier using a pin diode
RCA CORP25 citations82
US4463369AJul 31, 1984
Integrated circuit overload protection device
RCA CORP10 citations74
US4344043AAug 10, 1982
Variable load impedance gain-controlled amplifier
RCA CORP11 citations74
US4344044AAug 10, 1982
Gain-controlled amplifier utilizing variable emitter degeneration and collector load impedance
RCA CORP14 citations74
US4342005AJul 27, 1982
Television intermediate frequency amplifier with feedback stabilization
RCA CORP12 citations74
US4260956AApr 7, 1981
Temperature compensating bias circuit
RCA CORP12 citations74
US4237490ADec 2, 1980
Signal overload prevention circuit
RCA CORP8 citations74
US4212032AJul 8, 1980
Synchronization and gain control circuit
RCA CORP15 citations74
US4172239AOct 23, 1979
Signal attenuator
RCA CORP9 citations74
US4408229AOct 4, 1983
Noise sensitivity reduction apparatus for a TV receiver AGC system
RCA CORP3 citations63
US4388649AJun 14, 1983
AFT Lockout prevention system
RCA CORP6 citations63
US4378528AMar 29, 1983
Gain-controlled amplifier system
RCA CORP6 citations63
US4366443ADec 28, 1982
Television intermediate frequency amplifier
RCA CORP5 citations63
US4365208ADec 21, 1982
Gain-controlled amplifier using a controllable alternating-current resistance
RCA CORP4 citations63
US4345214AAug 17, 1982
Variable emitter degeneration gain-controlled amplifier
RCA CORP4 citations63
US4329713AMay 11, 1982
Television automatic gain control system
RCA CORP3 citations63
US4254436AMar 3, 1981
Noise cancellation circuit
RCA CORP3 citations63
US4218708AAug 19, 1980
Keyed AGC circuit
RCA CORP2 citations63
US4213151AJul 15, 1980
AGC keying signal circuit
RCA CORP6 citations63
US4367491AJan 4, 1983
Video signal recovery system
RCA CORP1 citations52
SAMSUNG ELECTRONICS CO LTD
9 patentsUS5331290AJul 19, 1994
Variable gain amplifier
SAMSUNG ELECTRONICS CO LTD27 citations86
US5526062AJun 11, 1996
Color TV receiver using quadrature-phase synchronous detector for supplying signal to chrominance circuitry
SAMSUNG ELECTRONICS CO LTD6 citations74
US5479137ADec 26, 1995
Controlled oscillator, as for synchyronous video detector
SAMSUNG ELECTRONICS CO LTD16 citations74
US5446500AAug 29, 1995
Noise reducing apparatus and methods for television receivers
SAMSUNG ELECTRONICS CO LTD6 citations74
US5369445ANov 29, 1994
Noise reducing apparatus and methods for television receivers
SAMSUNG ELECTRONICS CO LTD5 citations74
US5365279ANov 15, 1994
Using D-C feedback with on-chip filtering to balance I-F drive to second detector in monolithic IC
SAMSUNG ELECTRONICS CO LTD12 citations74
US5337091AAug 9, 1994
Video IF amplifier with auxiliary IF amplifier for intercarrier sound & AFT
SAMSUNG ELECTRONICS CO LTD14 citations74
US5305109AApr 19, 1994
Parallel untuned video if amplifiers supplied signals from TV 1st detector via respective input filters
SAMSUNG ELECTRONICS CO LTD17 citations74
US5457500AOct 10, 1995
Color TV receiver using quadrature-phase synchronous detector for supplying signal to chrominance circuitry
SAMSUNG ELECTRONICS CO LTD4 citations63
HARFORD JACK R
4 patentsUS4870534ASep 26, 1989
Power line surge suppressor
HARFORD JACK R56 citations95
US4870528ASep 26, 1989
Power line surge suppressor
HARFORD JACK R54 citations95
US7184252B2Feb 27, 2007
Surge protector with input transformer
HARFORD JACK R13 citations83
US7068487B2Jun 27, 2006
Surge protector
HARFORD JACK R11 citations83