Inventor · disambiguated record
Howard F. Jirka
Also filed as: JIRKA HOWARD F
7 granted patents·218 citations·filing 1973–1986
87Inventor score
Files withZENITH RADIO CORP3AMERICAN TELEPHONE & TELEGRAPH2BELL TELEPHONE LABOR INC1OAK INDUSTRIES INC1
Top patents by PatentIndex Score
7 records- 0193US4340906AVideo signal coding by video signal polarity reversal on the basis of brightness level comparisonOAK INDUSTRIES INC·Filed 1980·Granted Jul 20, 1982·123 cites·10 claims
- 0274US4780696AMultifilar transformer apparatus and winding methodAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Oct 25, 1988·42 cites·4 claims
- 0370US4080628AExpanded-signal image enhancement systemZENITH RADIO CORP·Filed 1977·Granted Mar 21, 1978·17 cites·12 claims
- 0462US4402039ATelephone line circuitBELL TELEPHONE LABOR INC·Filed 1981·Granted Aug 30, 1983·14 cites·12 claims
- 0548US3935384ANetwork for generating a CRT control signal for enhancing the edges of television imagesZENITH RADIO CORP·Filed 1975·Granted Jan 27, 1976·8 cites·5 claims
- 0646US4679132AFloating battery feed circuit using multifilar transformerAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Jul 7, 1987·10 cites·13 claims
- 0741US3936869AAutomatic color level circuit with peak detectorZENITH RADIO CORP·Filed 1973·Granted Feb 3, 1976·4 cites·7 claims
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