Assignee
NIELSEN A C CO
US·42 granted patents·13,121 citations·filing 1975–1997
Top patents by PatentIndex Score
42 records- 0199US5481294AAudience measurement system utilizing ancillary codes and passive signaturesNIELSEN A C CO·Filed 1993·Granted Jan 2, 1996·1.5k cites·37 claims
- 0299US5031228AImage recognition system and methodNIELSEN A C CO·Filed 1988·Granted Jul 9, 1991·390 cites·40 claims
- 0399US4677466ABroadcast program identification method and apparatusNIELSEN A C CO·Filed 1985·Granted Jun 30, 1987·1.2k cites·90 claims
- 0498US4876736AMethod and apparatus for determining channel reception of a receiverNIELSEN A C CO·Filed 1987·Granted Oct 24, 1989·336 cites·38 claims
- 0598US4858000AImage recognition audience measurement system and methodNIELSEN A C CO·Filed 1988·Granted Aug 15, 1989·392 cites·27 claims
- 0698US4697209AMethods and apparatus for automatically identifying programs viewed or recordedNIELSEN A C CO·Filed 1984·Granted Sep 29, 1987·929 cites·108 claims
- 0797US5550928AAudience measurement system and methodNIELSEN A C CO·Filed 1992·Granted Aug 27, 1996·615 cites·22 claims
- 0896US4930011AMethod and apparatus for identifying individual members of a marketing and viewing audienceNIELSEN A C CO·Filed 1988·Granted May 29, 1990·427 cites·19 claims
- 0996US4644509AUltrasonic audience measurement system and methodNIELSEN A C CO·Filed 1986·Granted Feb 17, 1987·158 cites·22 claims
- 1096US4048562AMonitoring system for voltage tunable receivers and converters utilizing voltage comparison techniquesNIELSEN A C CO·Filed 1975·Granted Sep 13, 1977·163 cites·15 claims
- 1196US4025851AAutomatic monitor for programs broadcastNIELSEN A C CO·Filed 1975·Granted May 24, 1977·631 cites·36 claims
- 1296US3973206AMonitoring system for voltage tunable receivers and converters utilizing an analog function generatorNIELSEN A C CO·Filed 1975·Granted Aug 3, 1976·159 cites·13 claims
- 1395US4425578AMonitoring system and method utilizing signal injection for determining channel reception of video receiversNIELSEN A C CO·Filed 1981·Granted Jan 10, 1984·204 cites·34 claims
- 1494US5629739AApparatus and method for injecting an ancillary signal into a low energy density portion of a color television frequency spectrumNIELSEN A C CO·Filed 1995·Granted May 13, 1997·313 cites·52 claims
- 1594US5594934AReal time correlation meterNIELSEN A C CO·Filed 1994·Granted Jan 14, 1997·464 cites·55 claims
- 1694US5243423ASpread spectrum digital data transmission over TV videoNIELSEN A C CO·Filed 1991·Granted Sep 7, 1993·429 cites·17 claims
- 1794US4888638ASystem for substituting television programs transmitted via telephone linesNIELSEN A C CO·Filed 1988·Granted Dec 19, 1989·364 cites·68 claims
- 1894US4723302AMethod and apparatus for determining channel reception of a receiverNIELSEN A C CO·Filed 1986·Granted Feb 2, 1988·281 cites·20 claims
- 1994US4630108APreprogrammed over-the-air marketing research systemNIELSEN A C CO·Filed 1984·Granted Dec 16, 1986·308 cites·57 claims
- 2093US5425100AUniversal broadcast code and multi-level encoded signal monitoring systemNIELSEN A C CO·Filed 1994·Granted Jun 13, 1995·424 cites·37 claims
- 2193US4943963AData collection and transmission system with real time clockNIELSEN A C CO·Filed 1988·Granted Jul 24, 1990·299 cites·42 claims
- 2293US4764808AMonitoring system and method for determining channel reception of video receiversNIELSEN A C CO·Filed 1987·Granted Aug 16, 1988·143 cites·12 claims
- 2392US4972503AMethod and apparatus for determining audience viewing habits by jamming a control signal and identifying the viewers commandNIELSEN A C CO·Filed 1989·Granted Nov 20, 1990·206 cites·28 claims
- 2491US5526427AUniversal broadcast code and multi-level encoded signal monitoring systemNIELSEN A C CO·Filed 1994·Granted Jun 11, 1996·319 cites·79 claims
- 2589US4972504AMarketing research system and method for obtaining retail data on a real time basisNIELSEN A C CO·Filed 1990·Granted Nov 20, 1990·495 cites·32 claims
- 2687US5165069AMethod and system for non-invasively identifying the operational status of a VCRNIELSEN A C CO·Filed 1990·Granted Nov 17, 1992·96 cites·17 claims
- 2786US5331544AMarket research method and system for collecting retail store and shopper market research dataNIELSEN A C CO·Filed 1992·Granted Jul 19, 1994·443 cites·22 claims
- 2884US5584050AProgram monitoring systemNIELSEN A C CO·Filed 1994·Granted Dec 10, 1996·241 cites·30 claims
- 2977USD338002SScannerNIELSEN A C CO·Filed 1991·Granted Aug 3, 1993·21 cites·1 claims
- 3076US5245533AMarketing research method and system for management of manufacturer's discount coupon offersNIELSEN A C CO·Filed 1990·Granted Sep 14, 1993·266 cites·20 claims
- 3175US5488408ASerial data channel metering attachment for metering channels to which a receiver is tunedNIELSEN A C CO·Filed 1994·Granted Jan 30, 1996·135 cites·36 claims
- 3274US4038504ARotary, printed circuit wafer switch and method for adjustingNIELSEN A C CO·Filed 1975·Granted Jul 26, 1977·26 cites·16 claims
- 3373US5450122AIn-station television program encoding and monitoring system and methodNIELSEN A C CO·Filed 1991·Granted Sep 12, 1995·169 cites·27 claims
- 3472US4345753AProcess and apparatus for aligning paper documentsNIELSEN A C CO·Filed 1980·Granted Aug 24, 1982·18 cites·11 claims
- 3571US5315093AMarket research method and system for collecting retail store market research dataNIELSEN A C CO·Filed 1992·Granted May 24, 1994·244 cites·13 claims
- 3670US4937742AAutomated system for statistically analyzing data characteristics of shipments of coupons to identify instances of coupon shipment parametric abnormalitiesNIELSEN A C CO·Filed 1986·Granted Jun 26, 1990·34 cites·43 claims
- 3762US5305464AMethod and apparatus for determining channel to which a receiver is tunedNIELSEN A C CO·Filed 1992·Granted Apr 19, 1994·48 cites·23 claims
- 3859US5278988AAutomated receiver monitoring method and apparatusNIELSEN A C CO·Filed 1991·Granted Jan 11, 1994·55 cites·20 claims
- 3951US4853882ASystem and method for protecting against redundant mailingsNIELSEN A C CO·Filed 1987·Granted Aug 1, 1989·53 cites·55 claims
- 4050US6092069AMarket research database containing separate product and naked product informationNIELSEN A C CO·Filed 1997·Granted Jul 18, 2000·71 cites·64 claims
- 4142US6484158B1Dynamic rule based market research databaseNIELSEN A C CO·Filed 1997·Granted Nov 19, 2002·43 cites·41 claims
- 4241US6078922AMarket research database having historical control designatorNIELSEN A C CO·Filed 1997·Granted Jun 20, 2000·42 cites·59 claims
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