Inventor · disambiguated record
Rainer Gehrmann
Also filed as: GEHRMANN RAINER
15 granted patents·182 citations·filing 1984–1997
93Inventor score
Top patents by PatentIndex Score
15 records- 0173US5301016AMethod of and arrangement for deriving a control signal for inserting a background signal into parts of a foreground signalPHILIPS CORP·Filed 1992·Granted Apr 5, 1994·36 cites·4 claims
- 0272US5381184AMethod of and arrangement for inserting a background signal into parts of a foreground signal fixed by a predetermined key colorPHILIPS CORP·Filed 1992·Granted Jan 10, 1995·34 cites·7 claims
- 0362US5455633AChromakey method for processing picture signals in which fading operations are performed in proportional zones based on a control signalPHILIPS CORP·Filed 1993·Granted Oct 3, 1995·21 cites·12 claims
- 0453US6141063AChroma key method and arrangementPHILIPS CORP·Filed 1997·Granted Oct 31, 2000·17 cites·11 claims
- 0550US5719640AChromakey method and associated circuit arrangementPHILIPS CORP·Filed 1995·Granted Feb 17, 1998·15 cites·7 claims
- 0649US5708479AMethod of inserting a background picture signal into parts of a foreground picture signal, and arrangement for performing said methodPHILIPS CORP·Filed 1996·Granted Jan 13, 1998·14 cites·9 claims
- 0747US5644365AMethod and circuit for generating a composite video signalPHILIPS CORP·Filed 1995·Granted Jul 1, 1997·12 cites·8 claims
- 0846US5444496AMethod of separating a foreground picture signal from a mixed picture signal, and arrangement for preforming said methodPHILIPS CORP·Filed 1994·Granted Aug 22, 1995·10 cites·5 claims
- 0943US5382980AMethod of and arrangement for inserting a background signal into parts of a foreground signal fixed by a predetermined key colorPHILIPS CORP·Filed 1994·Granted Jan 17, 1995·8 cites·5 claims
- 1043US4547711AMethod and apparatus for producing sawtooth wave deflection current for television apparatusBOSCH GMBH ROBERT·Filed 1984·Granted Oct 15, 1985·5 cites·5 claims
- 1139US5436671AMethod of separating a foreground picture signal from a mixed picture signal, using gamma correction, and arrangement for performing said methodPHILIPS CORP·Filed 1994·Granted Jul 25, 1995·6 cites·12 claims
- 1233US4739408AMethod of automatic alignment of the electron beam direction in a television camera tubeBOSCH GMBH ROBERT·Filed 1986·Granted Apr 19, 1988·3 cites·8 claims
- 1329US4760454AEquilibration method for electrical focussing of television camera tubesBOSCH GMBH ROBERT·Filed 1986·Granted Jul 26, 1988·1 cites·26 claims
- 1429US4748508ASuccessive approximation type control of the electron beam of a camera tubeBOSCH GMBH ROBERT·Filed 1986·Granted May 31, 1988·0 cites·9 claims
- 1529US4709192AProcess and circuit for avoiding of nonlinearities and brightening on the picture edges in television pick up tubesBOSCH GMBH ROBERT·Filed 1985·Granted Nov 24, 1987·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →