Inventor · disambiguated record
Daniel K. Chappell
Also filed as: CHAPPELL DANIEL K · CHAPPELL DANIEL KEITH
37 granted patents·2 pending applications·502 citations·filing 1994–2023
97Inventor score
Top patents by PatentIndex Score
39 records- 0194US9838679B2Distance to fault measurements in cable TV networksJDS UNIPHASE CORP·Filed 2015·Granted Dec 5, 2017·12 cites·15 claims
- 0293US6425132B1Ingress testing of CATV system utilizing remote selection of CATV nodeWAVETEK CORP·Filed 1998·Granted Jul 23, 2002·179 cites·36 claims
- 0391US6961370B2Sweep method using digital signalsACTERNA·Filed 2001·Granted Nov 1, 2005·54 cites·30 claims
- 0487US11239924B2Per-channel modulation error ratio (MER) calibration and determination on a multi channel receiverVIAVI SOLUTIONS INC·Filed 2020·Granted Feb 1, 2022·2 cites·18 claims
- 0584US5585842ACATV frequency sweep testing using RF transmitter to generate test signalsWAVETEK CORP·Filed 1994·Granted Dec 17, 1996·55 cites·31 claims
- 0683US9634722B2Cable network spectral measurement during upstream packet transmissionJDS UNIPHASE CORP·Filed 2014·Granted Apr 25, 2017·6 cites·19 claims
- 0783US8558552B2Home network characterization method and systemCHAPPELL DANIEL K·Filed 2010·Granted Oct 15, 2013·9 cites·13 claims
- 0882US9357163B2Characterizing ingress noiseJDS UNIPHASE CORP·Filed 2013·Granted May 31, 2016·4 cites·18 claims
- 0979US9350986B2Dual-port testing of a cable networkVIAVI SOLUTIONS INC·Filed 2014·Granted May 24, 2016·3 cites·20 claims
- 1079US8548760B2Detecting nonlinearity in a cable plant and determining a cable length to a source of the nonlinearityCHAPPELL DANIEL K·Filed 2009·Granted Oct 1, 2013·10 cites·20 claims
- 1178US10694177B2Distance to fault measurements in cable TV networksVIAVI SOLUTIONS INC·Filed 2017·Granted Jun 23, 2020·2 cites·20 claims
- 1276US8154303B2Method for locating cable impairmentsMAXSON BEN·Filed 2008·Granted Apr 10, 2012·13 cites·19 claims
- 1376US7944848B2Upstream signal quality monitoringACTERNA LLC·Filed 2008·Granted May 17, 2011·11 cites·12 claims
- 1475US10728595B2Upstream sweep test with sweep server signalingVIAVI SOLUTIONS INC·Filed 2017·Granted Jul 28, 2020·2 cites·20 claims
- 1575US5867206ACATV frequency sweep testing using RF transmitter to generate test signalsWAVETEK CORP·Filed 1996·Granted Feb 2, 1999·43 cites·21 claims
- 1673US11650266B2Systems and methods for detecting leakage in a cable network systemVIAVI SOLUTIONS INC·Filed 2021·Granted May 16, 2023·0 cites·19 claims
- 1773US6313874B1Method and apparatus for direct detection of communication system leakage signalsWAVETEK CORP·Filed 1997·Granted Nov 6, 2001·47 cites·26 claims
- 1872US7961719B2End of line monitor using DOCSISACTERNA LLC·Filed 2006·Granted Jun 14, 2011·5 cites·10 claims
- 1969US8310940B2Testing upstream cable channelsJONES RICHARD EARL·Filed 2010·Granted Nov 13, 2012·4 cites·13 claims
- 2068US12218710B2Per-channel modulation error ratio (MER) calibration and determination on a multi channel receiverVIAVI SOLUTIONS INC·Filed 2022·Granted Feb 4, 2025·0 cites·20 claims
- 2168US11677439B2Method and apparatus providing common path distortion (CPD) detection from a field instrumentVIAVI SOLUTIONS INC·Filed 2021·Granted Jun 13, 2023·0 cites·20 claims
- 2267US11621884B2High resolution time domain reflectometry (TDR) in fault location measurement in a cable networkVIAVI SOLUTIONS INC·Filed 2018·Granted Apr 4, 2023·1 cites·18 claims
- 2366US11085973B2Systems and methods for detecting leakage in a cable network systemVIAVI SOLUTIONS INC·Filed 2019·Granted Aug 10, 2021·0 cites·8 claims
- 2466US10986331B2Distance to fault measurements in cable TV networksVIAVI SOLUTIONS INC·Filed 2020·Granted Apr 20, 2021·0 cites·20 claims
- 2564US2023269131A1High resolution time domain reflectometry (tdr) in fault location measurement in a cable networkVIAVI SOLUTIONS INC·Filed 2023·Application pending·0 cites
- 2663US11218189B1Method and apparatus providing common path distortion (CPD) detection from a field instrumentVIAVI SOLUTIONS INC·Filed 2020·Granted Jan 4, 2022·0 cites·18 claims
- 2757US11595710B2Upstream sweep test with sweep server signalingVIAVI SOLUTIONS INC·Filed 2020·Granted Feb 28, 2023·0 cites·20 claims
- 2856US8184684B2Automatic gain control stress measurement for digital carriersMILLER WALTER·Filed 2008·Granted May 22, 2012·1 cites·14 claims
- 2954US6041076ADigitally modulated CATV power measurement using undersamplingWAVETEK CORP·Filed 1997·Granted Mar 21, 2000·23 cites·20 claims
- 3053US10594364B2Characterizing ingress noiseVIAVI SOLUTIONS INC·Filed 2016·Granted Mar 17, 2020·0 cites·19 claims
- 3153US9893764B2Cable network spectral measurement during upstream packet transmissionVIAVI SOLUTIONS INC·Filed 2017·Granted Feb 13, 2018·0 cites·20 claims
- 3253US9774847B2Dual-port testing of a cable networkVIAVI SOLUTIONS INC·Filed 2016·Granted Sep 26, 2017·0 cites·20 claims
- 3352US6160991ACATV frequency sweep testing remote unitWAVETEK WANDEL GOLTERMANN INC·Filed 1999·Granted Dec 12, 2000·15 cites·22 claims
- 3451US12034619B2Upstream signal leakage detection in high-split cable networkVIAVI SOLUTIONS INC·Filed 2022·Granted Jul 9, 2024·0 cites·17 claims
- 3551US10321169B1Interference profile of a bursty channelVIAVI SOLUTIONS INC·Filed 2017·Granted Jun 11, 2019·0 cites·20 claims
- 3651US8189651B2Measuring Hum in a digital TV signalSHI PINGNAN·Filed 2009·Granted May 29, 2012·1 cites·20 claims
- 3747US2015009340A1Characterizing a downstream path of a cable networkJDS UNIPHASE CORP·Filed 2014·Application pending·0 cites
- 3845US8312496B2Measuring the frequency response of a CATV networkNOWOTARSKI ADAM A·Filed 2009·Granted Nov 13, 2012·0 cites·18 claims
- 3944US8762088B2MoCA quality index measurement system for qualifying home networksMASSEY GREGORY W·Filed 2012·Granted Jun 24, 2014·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →