Inventor · disambiguated record
Sampath Rangarajan
Also filed as: RANGARAJAN SAMPATH · RANGARAJAN SAMPATH MATEO
203 granted patents·28 pending applications·3,806 citations·filing 1997–2021
99Inventor score
Files withNEC LAB AMERICA INC131PRASAD NARAYAN19KHOJASTEPOUR MOHAMMAD A11LUCENT TECHNOLOGIES INC10NEC CORP10
Top patents by PatentIndex Score
231 records- 0199US6389462B1Method and apparatus for transparently directing requests for web objects to proxy cachesLUCENT TECHNOLOGIES INC·Filed 1998·Granted May 14, 2002·1.2k cites·55 claims
- 0298US9184902B2Interference cancellation for full-duplex communicationsNEC LAB AMERICA INC·Filed 2013·Granted Nov 10, 2015·87 cites·17 claims
- 0398US6070191AData distribution techniques for load-balanced fault-tolerant web accessLUCENT TECHNOLOGIES INC·Filed 1997·Granted May 30, 2000·640 cites·57 claims
- 0497US9148818B2Coordinated multiple point transmission and receptionNEC LAB AMERICA INC·Filed 2013·Granted Sep 29, 2015·49 cites·11 claims
- 0597US8879433B2Method for a canceling self interference signal using active noise cancellation in the air for full duplex simultaneous (in time) and overlapping (in space) wireless transmission and reception on the same frequency bandKHOJASTEPOUR MOHAMMAD A·Filed 2011·Granted Nov 4, 2014·43 cites·15 claims
- 0697US8874125B2Radio access network sharingNEC LAB AMERICA INC·Filed 2013·Granted Oct 28, 2014·54 cites·19 claims
- 0797US8837332B2Method for a canceling self interference signal using passive noise cancellation for full-duplex simultaneous (in time) and overlapping (in space) wireless transmission and reception on the same frequency bandKHOJASTEPOUR MOHAMMAD A·Filed 2011·Granted Sep 16, 2014·42 cites·3 claims
- 0896US10936927B2Tagging objects in indoor spaces using ambient, distributed backscatterNEC LAB AMERICA INC·Filed 2020·Granted Mar 2, 2021·8 cites·20 claims
- 0996US9936414B2Enabling long-term-evolution/wifi coexistenceNEC LAB AMERICA INC·Filed 2016·Granted Apr 3, 2018·22 cites·20 claims
- 1096US9125047B2Cloud-based radio access network for small cellsNEC LAB AMERICA INC·Filed 2013·Granted Sep 1, 2015·37 cites·17 claims
- 1195US10292054B2Enabling technologies for LTE on unlicensed spectrumNEC LAB AMERICA INC·Filed 2017·Granted May 14, 2019·18 cites·6 claims
- 1295US9094145B2Coordinated multipoint transmission and reception (CoMP)NEC LAB AMERICA INC·Filed 2013·Granted Jul 28, 2015·30 cites·15 claims
- 1395US8654663B2MU-MIMO-OFDMA systems and methods for multi-rank CQI computation and precoder selectionPRASAD NARAYAN·Filed 2011·Granted Feb 18, 2014·18 cites·18 claims
- 1494US11620880B2Self checkout systemNEC LAB AMERICA INC·Filed 2021·Granted Apr 4, 2023·5 cites·16 claims
- 1594US10122547B2Enabling high-bandwidth, responsive mobile applications in LTE networksNEC LAB AMERICA INC·Filed 2016·Granted Nov 6, 2018·12 cites·20 claims
- 1694US8798011B2Enhancement of download multi-user multiple-input multiple-output wireless communicationsPRASAD NARAYAN·Filed 2012·Granted Aug 5, 2014·16 cites·16 claims
- 1794US8351948B2Method and system for customizable flow management in a cellular basestationNEC LAB AMERICA INC·Filed 2011·Granted Jan 8, 2013·14 cites·15 claims
- 1894US6314465B1Method and apparatus for load sharing on a wide area networkLUCENT TECHNOLOGIES INC·Filed 1999·Granted Nov 6, 2001·316 cites·83 claims
- 1993US9413474B2Efficient large-scale multiple input multiple output communicationsNEC LAB AMERICA INC·Filed 2015·Granted Aug 9, 2016·11 cites·10 claims
- 2093US8750358B2Method for improving multiuser MIMO downlink transmissionsYUE GUOSEN·Filed 2012·Granted Jun 10, 2014·25 cites·13 claims
- 2192US11651664B2Neural network classifier trained for purchasing differentiationNEC LAB AMERICA INC·Filed 2021·Granted May 16, 2023·3 cites·16 claims
- 2292US8311005B2Methods and systems for allocation of macro cell resources in a distributed femto cell network and a distributed relay station networkSUNDARESAN KARTHIKEYAN·Filed 2009·Granted Nov 13, 2012·18 cites·10 claims
- 2392US7478427B2Method and apparatus for providing adaptive VPN to enable different security levels in virtual private networks (VPNs)ALCATEL LUCENT USA INC·Filed 2003·Granted Jan 13, 2009·112 cites·27 claims
- 2492US6434618B1Programmable network element for packet-switched computer networkLUCENT TECHNOLOGIES INC·Filed 1998·Granted Aug 13, 2002·269 cites·51 claims
- 2591US9537587B2Efficient large-scale multiple input multiple output communicationsNEC LAB AMERICA INC·Filed 2015·Granted Jan 3, 2017·10 cites·12 claims
- 2691US8724605B2Multicast video and data delivery with beamforming antennas in indoor wireless networksZHANG HONGHAI·Filed 2011·Granted May 13, 2014·21 cites·11 claims
- 2790US8873482B2Method and system for virtualizing a cellular basestationKOKKU RAVINDRANATH·Filed 2011·Granted Oct 28, 2014·12 cites·5 claims
- 2890US8700047B2Method and system for customizable flow management in a cellular basestationNEC LAB AMERICA INC·Filed 2013·Granted Apr 15, 2014·8 cites·7 claims
- 2989US11620462B2Reading passive wireless tags using commodity devicesNEC LAB AMERICA INC·Filed 2021·Granted Apr 4, 2023·2 cites·19 claims
- 3089US11379676B2RFID-based self-checkout systems using cycle countingNEC LAB AMERICA INC·Filed 2021·Granted Jul 5, 2022·2 cites·20 claims
- 3189US9755716B2Codebook constructionNEC CORP·Filed 2016·Granted Sep 5, 2017·6 cites·15 claims
- 3289US8923239B2Method and system for customizable flow management in a cellular basestationNEC LAB AMERICA INC·Filed 2014·Granted Dec 30, 2014·7 cites·4 claims
- 3389US8660598B2Systems and methods for prioritizing beams to enable efficient determination of suitable communication linksPRASAD NARAYAN·Filed 2010·Granted Feb 25, 2014·10 cites·14 claims
- 3488US7801957B2Apparatus and method for fair message exchanges in distributed multi-player gamesALCATEL LUCENT USA INC·Filed 2009·Granted Sep 21, 2010·18 cites·14 claims
- 3587US11048890B2Walk-through checkout stationNEC LAB AMERICA INC·Filed 2019·Granted Jun 29, 2021·4 cites·17 claims
- 3687US8897725B2BeamformingNEC LAB AMERICA INC·Filed 2013·Granted Nov 25, 2014·7 cites·11 claims
- 3786US8687527B2Low complexity link adaptatation for LTE/LTE-A uplink with a turbo receiverJIANG MEILONG·Filed 2011·Granted Apr 1, 2014·10 cites·12 claims
- 3886US8532051B2Method and systems for conveying scheduling information of overlapping co-scheduled users in an OFDMA-MU-MIMO systemPRASAD NARAYAN·Filed 2011·Granted Sep 10, 2013·5 cites·7 claims
- 3986US8510433B2Beam combination methods and systems for adapting communication links to varying channel conditionsRAMACHANDRAN KISHORE·Filed 2010·Granted Aug 13, 2013·8 cites·20 claims
- 4086US8345545B2Methods and systems for rate matching and rate shaping in a wireless networkNEC LAB AMERICA INC·Filed 2010·Granted Jan 1, 2013·9 cites·11 claims
- 4186US8141120B2Adaptive scheduling of streaming video over wireless networksZHANG HONGHAI·Filed 2009·Granted Mar 20, 2012·11 cites·5 claims
- 4286US6510439B1Method and system for consistent update and retrieval of document in a WWW serverLUCENT TECHNOLOGIES INC·Filed 1999·Granted Jan 21, 2003·121 cites·12 claims
- 4385US11580317B2Tracking RFID groups with spatio-temporal proximityNEC LAB AMERICA INC·Filed 2020·Granted Feb 14, 2023·2 cites·18 claims
- 4485US10852416B2In-store interaction and location system for interfacing users with productsNEC LAB AMERICA INC·Filed 2019·Granted Dec 1, 2020·3 cites·19 claims
- 4585US9137788B2Multiple-input multiple-output wireless communications with full duplex radiosKHOJASTEPOUR MOHAMMAD A·Filed 2012·Granted Sep 15, 2015·7 cites·7 claims
- 4685US8068821B2Method and apparatus for providing content to users using unicast and broadcast wireless networksBHATIA RANDEEP S·Filed 2007·Granted Nov 29, 2011·15 cites·24 claims
- 4784US8644180B2MU-MIMO-OFDMA methods and systems for signaling multi-rank CQIs and precodersPRASAD NARAYAN·Filed 2011·Granted Feb 4, 2014·5 cites·16 claims
- 4884US7400611B2Discovery of border gateway protocol (BGP) multi-protocol label switching (MPLS) virtual private networks (VPNs)LUCENT TECHNOLOGIES INC·Filed 2004·Granted Jul 15, 2008·41 cites·30 claims
- 4984US7058424B2Method and apparatus for interconnecting wireless and wireline networksLUCENT TECHNOLOGIES INC·Filed 2004·Granted Jun 6, 2006·52 cites·19 claims
- 5083US8520764B2Link layer multicasting systems and methodsKHOJASTEPOUR MOHAMMAD A·Filed 2011·Granted Aug 27, 2013·6 cites·9 claims
Showing the top 50 of 231 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →