Inventor · disambiguated record
Roland Ryf
Also filed as: RYF ROLAND · RYF ROLAND R
65 granted patents·19 pending applications·601 citations·filing 2001–2025
99Inventor score
Files withALCATEL LUCENT USA INC31LUCENT TECHNOLOGIES INC8CHEN GANG7NOKIA SOLUTIONS & NETWORKS OY7RYF ROLAND6
Top patents by PatentIndex Score
84 records- 0196US8109638B2Diffuser configuration for an image projectorCHEN GANG·Filed 2008·Granted Feb 7, 2012·26 cites·15 claims
- 0295US10345192B2Single-end optical fiber transfer matrix measurement using spatial pilotALCATEL LUCENT USA INC·Filed 2017·Granted Jul 9, 2019·10 cites·15 claims
- 0393US8355638B2Receiver for optical transverse-mode-multiplexed signalsALCATEL LUCENT·Filed 2009·Granted Jan 15, 2013·22 cites·21 claims
- 0492US7502160B2Speckle reduction in laser-projector imagesALCATEL LUCENT USA INC·Filed 2007·Granted Mar 10, 2009·30 cites·27 claims
- 0592US7440158B2Direct optical image projectorsLUCENT TECHNOLOGIES INC·Filed 2007·Granted Oct 21, 2008·19 cites·18 claims
- 0691US9077455B2Optical receiver having a MIMO equalizerRANDEL SEBASTIAN A·Filed 2012·Granted Jul 7, 2015·19 cites·19 claims
- 0791US8223188B2Monitor having integral camera and method of operating the sameRYF ROLAND·Filed 2008·Granted Jul 17, 2012·20 cites·20 claims
- 0891US8129669B2System and method generating multi-color light for image display having a controller for temporally interleaving the first and second time intervals of directed first and second light beamsCHEN GANG·Filed 2008·Granted Mar 6, 2012·14 cites·26 claims
- 0991US7149407B1Orthogonal heterodyne optical signal-to-noise-ratio (OSNR) monitoring method and apparatusLUCENT TECHNOLOGIES INC·Filed 2006·Granted Dec 12, 2006·33 cites·20 claims
- 1090US8822905B2Optical mode couplers for multi-mode optical fibersRYF ROLAND·Filed 2011·Granted Sep 2, 2014·12 cites·20 claims
- 1190US7016098B2Optical device with configurable channel allocationLUCENT TECHNOLOGIES INC·Filed 2003·Granted Mar 21, 2006·30 cites·37 claims
- 1290US6618184B2Device for use with a micro-electro-mechanical system (MEMS) optical device and a method of manufacture thereforAGERE SYSTEMS INC·Filed 2001·Granted Sep 9, 2003·45 cites·55 claims
- 1389US11035754B2Single-ended probing through a multimode fiber having distributed reflectorsNOKIA TECHNOLOGIES OY·Filed 2018·Granted Jun 15, 2021·4 cites·13 claims
- 1489US9411100B2Photonic lantern spatial multiplexers with mode selectivityALCATEL LUCENT USA INC·Filed 2013·Granted Aug 9, 2016·10 cites·20 claims
- 1589US8538275B2Multimode optical communicationESSIAMBRE RENE-JEAN·Filed 2010·Granted Sep 17, 2013·10 cites·20 claims
- 1689US8320769B2Transverse-mode multiplexing for optical communication systemsESSIAMBRE RENE-JEAN·Filed 2009·Granted Nov 27, 2012·21 cites·24 claims
- 1789US6704475B2Mirror for use with a micro-electro-mechanical system (MEMS) optical device and a method of manufacture thereforAGERE SYSTEMS INC·Filed 2001·Granted Mar 9, 2004·42 cites·38 claims
- 1888US6757458B2Optical MEMS switch with converging beamsLUCENT TECHNOLOGIES INC·Filed 2001·Granted Jun 29, 2004·38 cites·8 claims
- 1987US6704476B2Optical MEMS switch with imaging systemLUCENT TECHNOLOGIES INC·Filed 2001·Granted Mar 9, 2004·34 cites·28 claims
- 2086US10715256B1Recovery of phase-modulated data from an optical signal via intensity measurementsNOKIA SOLUTIONS & NETWORKS OY·Filed 2019·Granted Jul 14, 2020·5 cites·19 claims
- 2186US8582933B2Scalable waveguide-mode coupler for an optical receiver or transmitterRYF ROLAND·Filed 2011·Granted Nov 12, 2013·8 cites·20 claims
- 2284US8391655B2Waveguide coupler for optical transverse-mode multiplexingRYF ROLAND·Filed 2010·Granted Mar 5, 2013·6 cites·19 claims
- 2382US9188831B2Compact wavelength-selective cross-connect device having multiple input ports and multiple output portsNEILSON DAVID T·Filed 2012·Granted Nov 17, 2015·6 cites·18 claims
- 2481US6882770B2Imaging technique for use with optical MEMS devicesAGERE SYSTEMS INC·Filed 2001·Granted Apr 19, 2005·24 cites·28 claims
- 2580US9759860B2Multimode optical fiber, mode delay adjuster for fiber systems, and methods to use such fibers, adjusters, and systemsESSIAMBRE RENE'-JEAN·Filed 2012·Granted Sep 12, 2017·4 cites·4 claims
- 2680US8774574B2Optical time domain reflectometry for multiple spatial mode fibersXIE CHONGJIN·Filed 2012·Granted Jul 8, 2014·5 cites·20 claims
- 2780US7580175B2Detector of infrared radiation having a bi-material transducerALCATEL LUCENT USA INC·Filed 2007·Granted Aug 25, 2009·10 cites·22 claims
- 2879US8226241B2Image projector employing a speckle-reducing laser sourceCHEN GANG·Filed 2009·Granted Jul 24, 2012·5 cites·24 claims
- 2978US9362708B2Compact two-stage optical amplifierALCATEL LUCENT USA INC·Filed 2013·Granted Jun 7, 2016·4 cites·15 claims
- 3077US9853416B2Multimode vertical-cavity surface-emitting laserALCATEL LUCENT USA INC·Filed 2016·Granted Dec 26, 2017·2 cites·25 claims
- 3177US9664850B2Optical spatial mode-multiplexerALCATEL LUCENT USA INC·Filed 2014·Granted May 30, 2017·3 cites·17 claims
- 3277US9369783B2Wavelength-selective cross-connect device having astigmatic opticsNEILSON DAVID T·Filed 2013·Granted Jun 14, 2016·4 cites·18 claims
- 3376US9910234B2Datacenter interconnection systemALCATEL LUCENT USA INC·Filed 2016·Granted Mar 6, 2018·2 cites·16 claims
- 3476US9335477B2Spatial division diversity in photonic integrated circuitsALCATEL LUCENT USA INC·Filed 2013·Granted May 10, 2016·3 cites·23 claims
- 3576US7750286B2Compact image projector having a mirror for reflecting a beam received from a polarization beam splitter back to the polarization beam splitterALCATEL LUCENT USA INC·Filed 2007·Granted Jul 6, 2010·4 cites·20 claims
- 3675US9819439B2Multi-mode optical communication with mode mixturesALCATEL LUCENT USA INC·Filed 2013·Granted Nov 14, 2017·3 cites·21 claims
- 3775US6647172B2Imaging technique for use with optical MEMS devicesLUCENT TECHNOLOGIES INC·Filed 2001·Granted Nov 11, 2003·16 cites·28 claims
- 3873US10615874B2Optical communication with low temporal coherence lightALCATEL LUCENT USA INC·Filed 2017·Granted Apr 7, 2020·2 cites·21 claims
- 3973US8247999B2Time division multiplexing a DC-to-DC voltage converterCHEN GANG·Filed 2008·Granted Aug 21, 2012·12 cites·18 claims
- 4072US9831637B1Optical modulator with vertical-cavity surface-emitting lasersALCATEL LUCENT USA INC·Filed 2016·Granted Nov 28, 2017·1 cites·15 claims
- 4172US9537282B2System and method for a multi-mode pump in an optical amplifierALCATEL LUCENT USA INC·Filed 2013·Granted Jan 3, 2017·2 cites·13 claims
- 4271US7851759B2Infrared imaging apparatusALCATEL LUCENT USA INC·Filed 2007·Granted Dec 14, 2010·6 cites·21 claims
- 4368US9329345B2Hybrid wavelength selective switchALCATEL LUCENT USA INC·Filed 2013·Granted May 3, 2016·2 cites·17 claims
- 4467US10073221B2Beamforming for an optical switchALCATEL LUCENT USA INC·Filed 2016·Granted Sep 11, 2018·1 cites·18 claims
- 4567US9778477B2Holographic MEMS operated optical projectorsAKSYUK VLADIMIR ANATOLYEVICH·Filed 2007·Granted Oct 3, 2017·2 cites·7 claims
- 4666US9778418B2Multi-mode optical transmission line with differential modal group delay compensationESSIAMBRE RENE′-JEAN·Filed 2012·Granted Oct 3, 2017·2 cites·10 claims
- 4765US10601521B2Coherent optical communication with constellations having coordinates on circlesNOKIA SOLUTIONS & NETWORKS OY·Filed 2018·Granted Mar 24, 2020·1 cites·25 claims
- 4864US12191913B2Optical transmitter for passive optical networksNOKIA SOLUTIONS & NETWORKS OY·Filed 2022·Granted Jan 7, 2025·0 cites·20 claims
- 4964US8867125B2Multi-mode optical fiber amplifierALCATEL LUCENT USA INC·Filed 2012·Granted Oct 21, 2014·1 cites·26 claims
- 5063US10075257B2Optical spatial division multiplexing usable at short reachALCATEL LUCENT USA INC·Filed 2016·Granted Sep 11, 2018·1 cites·14 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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