Assignee
MARCONI INSTRUMENTS LTD
55 granted patents·1,120 citations·filing 1975–1996
Top patents by PatentIndex Score
55 records- 0195US4914405AFrequency synthesizerMARCONI INSTRUMENTS LTD·Filed 1988·Granted Apr 3, 1990·115 cites·8 claims
- 0294US4609881AFrequency synthesizersMARCONI INSTRUMENTS LTD·Filed 1984·Granted Sep 2, 1986·109 cites·15 claims
- 0386US4320361AAmplitude and frequency modulators using a switchable component controlled by data signalsMARCONI INSTRUMENTS LTD·Filed 1979·Granted Mar 16, 1982·128 cites·7 claims
- 0479US5781600AFrequency synthesizerMARCONI INSTRUMENTS LTD·Filed 1995·Granted Jul 14, 1998·64 cites·7 claims
- 0578US4309674AFrequency modulators with compensation for variations in modulation sensitivityMARCONI INSTRUMENTS LTD·Filed 1979·Granted Jan 5, 1982·24 cites·6 claims
- 0676US5079522AVariable frequency signal generatorMARCONI INSTRUMENTS LTD·Filed 1990·Granted Jan 7, 1992·49 cites·9 claims
- 0775US4434489AAutomatic test systemsMARCONI INSTRUMENTS LTD·Filed 1981·Granted Feb 28, 1984·42 cites·14 claims
- 0875US4295093ASpectrum analysersMARCONI INSTRUMENTS LTD·Filed 1979·Granted Oct 13, 1981·27 cites·4 claims
- 0972US5974362ASignal generator for testing radio frequency componentsMARCONI INSTRUMENTS LTD·Filed 1996·Granted Oct 26, 1999·21 cites·19 claims
- 1071US4810960AMeasuring adjacent channel powerMARCONI INSTRUMENTS LTD·Filed 1987·Granted Mar 7, 1989·27 cites·20 claims
- 1171US4780086AElectrical interface arrangementMARCONI INSTRUMENTS LTD·Filed 1987·Granted Oct 25, 1988·32 cites·12 claims
- 1271US4651089AFrequency counting arrangementMARCONI INSTRUMENTS LTD·Filed 1984·Granted Mar 17, 1987·36 cites·9 claims
- 1366US4808912ASix-port reflectometer test arrangement and method including calibrationMARCONI INSTRUMENTS LTD·Filed 1986·Granted Feb 28, 1989·24 cites·9 claims
- 1465US4984254AFrequency counterMARCONI INSTRUMENTS LTD·Filed 1989·Granted Jan 8, 1991·22 cites·14 claims
- 1565US4543542APhase locked loop frequency and phase modulatorsMARCONI INSTRUMENTS LTD·Filed 1984·Granted Sep 24, 1985·17 cites·13 claims
- 1664US4342007ASwept frequency oscillator with compensation for variations in tuning sensitivityMARCONI INSTRUMENTS LTD·Filed 1980·Granted Jul 27, 1982·18 cites·13 claims
- 1763US4013961AA.m. signal generator having an r.f. output level controlMARCONI INSTRUMENTS LTD·Filed 1975·Granted Mar 22, 1977·16 cites·9 claims
- 1861US4362394ATime interval measurement arrangementMARCONI INSTRUMENTS LTD·Filed 1981·Granted Dec 7, 1982·23 cites·6 claims
- 1958US4870384AFrequency or phase modulationMARCONI INSTRUMENTS LTD·Filed 1988·Granted Sep 26, 1989·16 cites·8 claims
- 2057US4536051AElectrical interface arrangementsMARCONI INSTRUMENTS LTD·Filed 1982·Granted Aug 20, 1985·17 cites·8 claims
- 2156US4582491ATraining apparatusMARCONI INSTRUMENTS LTD·Filed 1983·Granted Apr 15, 1986·23 cites·15 claims
- 2255US4249144AControllable microwave attenuatorMARCONI INSTRUMENTS LTD·Filed 1979·Granted Feb 3, 1981·11 cites·7 claims
- 2354US4144481AControl devicesMARCONI INSTRUMENTS LTD·Filed 1977·Granted Mar 13, 1979·10 cites·14 claims
- 2453US5399975AMethod of testing continuity of a connection between an integrated circuit and a printed circuit board by current probing integrated circuitMARCONI INSTRUMENTS LTD·Filed 1993·Granted Mar 21, 1995·18 cites·14 claims
- 2552US4733170AMicrowave power sensorsMARCONI INSTRUMENTS LTD·Filed 1986·Granted Mar 22, 1988·19 cites·13 claims
- 2651US4400630AFrequency multipliersMARCONI INSTRUMENTS LTD·Filed 1980·Granted Aug 23, 1983·10 cites·3 claims
- 2750US4777429ATest arrangementMARCONI INSTRUMENTS LTD·Filed 1987·Granted Oct 11, 1988·13 cites·9 claims
- 2847US4838070AMethod and apparatus for dry testing water-immersible acoustic transducersMARCONI INSTRUMENTS LTD·Filed 1987·Granted Jun 13, 1989·17 cites·15 claims
- 2946US4543495ADiode bridge switching circuit with high attenuationMARCONI INSTRUMENTS LTD·Filed 1982·Granted Sep 24, 1985·6 cites·9 claims
- 3045US4194164AVariable frequency sourcesMARCONI INSTRUMENTS LTD·Filed 1978·Granted Mar 18, 1980·6 cites·6 claims
- 3144US4518929AFrequency synthesizer having overtone crystal oscillatorMARCONI INSTRUMENTS LTD·Filed 1982·Granted May 21, 1985·7 cites·8 claims
- 3243US4143342AMicro-circuit arrangementsMARCONI INSTRUMENTS LTD·Filed 1977·Granted Mar 6, 1979·12 cites·10 claims
- 3342US4868512APhase detectorMARCONI INSTRUMENTS LTD·Filed 1987·Granted Sep 19, 1989·14 cites·6 claims
- 3442US4403822AElectrical probe apparatusMARCONI INSTRUMENTS LTD·Filed 1980·Granted Sep 13, 1983·7 cites·11 claims
- 3540US5061909AAttenuator switchably coupled to transmission path and means for switchably breaking the pathMARCONI INSTRUMENTS LTD·Filed 1989·Granted Oct 29, 1991·8 cites·11 claims
- 3640US4573756AElectrical interface arrangementsMARCONI INSTRUMENTS LTD·Filed 1982·Granted Mar 4, 1986·8 cites·5 claims
- 3739US5463310AInstrument for measuring the frequency and power of a microwave signalMARCONI INSTRUMENTS LTD·Filed 1994·Granted Oct 31, 1995·14 cites·12 claims
- 3837US5170486AApparatus for synthesizing a composite RF signal suitable for use as a test signal in testing adjacent channel rejection of radio receiversMARCONI INSTRUMENTS LTD·Filed 1990·Granted Dec 8, 1992·7 cites·10 claims
- 3937US4807035ASignal measurementMARCONI INSTRUMENTS LTD·Filed 1987·Granted Feb 21, 1989·9 cites·13 claims
- 4036US5375065AWaveform generators using digitally generator superimposed waveformsMARCONI INSTRUMENTS LTD·Filed 1992·Granted Dec 20, 1994·8 cites·11 claims
- 4136US4851784APhase comparatorsMARCONI INSTRUMENTS LTD·Filed 1988·Granted Jul 25, 1989·5 cites·3 claims
- 4236US4672336AAttenuatorsMARCONI INSTRUMENTS LTD·Filed 1985·Granted Jun 9, 1987·4 cites·9 claims
- 4335US4769592ASix-port reflectometer test arrangementMARCONI INSTRUMENTS LTD·Filed 1986·Granted Sep 6, 1988·6 cites·6 claims
- 4433US4107585AControl devicesMARCONI INSTRUMENTS LTD·Filed 1977·Granted Aug 15, 1978·2 cites·5 claims
- 4532US5790411AEquipment for testing electronic circuitryMARCONI INSTRUMENTS LTD·Filed 1996·Granted Aug 4, 1998·10 cites·6 claims
- 4632US5363049ASingle device under test (DUT) port common reference/matching impedance cirtuit for the detection and location of DUT faultsMARCONI INSTRUMENTS LTD·Filed 1993·Granted Nov 8, 1994·6 cites·8 claims
- 4732US4112340AControl devicesMARCONI INSTRUMENTS LTD·Filed 1977·Granted Sep 5, 1978·3 cites·11 claims
- 4831US4955826AConnectorMARCONI INSTRUMENTS LTD·Filed 1989·Granted Sep 11, 1990·5 cites·8 claims
- 4931US4795970AElectrical apparatusMARCONI INSTRUMENTS LTD·Filed 1987·Granted Jan 3, 1989·2 cites·11 claims
- 5031US4771442AElectrical apparatusMARCONI INSTRUMENTS LTD·Filed 1987·Granted Sep 13, 1988·8 cites·11 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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