Inventor · disambiguated record
Ping Wai Wan
Also filed as: WAN PING · WAN PING W · WAN PING WAI
31 granted patents·2 pending applications·511 citations·filing 1998–2010
97Inventor score
Files withTROPIC NETWORKS INC17NORTEL NETWORKS LTD7ALCATEL LUCENT4ALCATEL-LUCENT CANADA INC2AR CARD1
Top patents by PatentIndex Score
33 records- 0197US7715710B2Method and system for power management in optical networksALCATEL LUCENT·Filed 2007·Granted May 11, 2010·59 cites·31 claims
- 0296US7346284B2Method and apparatus for encoding optical power and non-payload data in an optical signalNORTEL NETWORKS LTD·Filed 2006·Granted Mar 18, 2008·55 cites·12 claims
- 0391US6313459B1Method for calibrating and operating an uncooled avalanche photodiode optical receiverNORTEL NETWORKS LTD·Filed 2000·Granted Nov 6, 2001·133 cites·17 claims
- 0487US7158723B2Channel identification in communications networksTROPIC NETWORKS INC·Filed 2002·Granted Jan 2, 2007·26 cites·30 claims
- 0585US6735725B1Method and apparatus for performance management of a multiplexed transmission systemNORTEL NETWORKS LTD·Filed 2000·Granted May 11, 2004·24 cites·4 claims
- 0684US7869709B2Signal identification in optical communications networksALCATEL LUCENT CANADA INC·Filed 2009·Granted Jan 11, 2011·9 cites·21 claims
- 0783US8014668B2Method and system for distributed measurement and compensation of chromatic dispersion in an optical networkALCATEL LUCENT·Filed 2008·Granted Sep 6, 2011·10 cites·34 claims
- 0881US7551858B2Signal identification in optical communications networksALCATEL LUCENT CANADA INC·Filed 2006·Granted Jun 23, 2009·8 cites·27 claims
- 0980US7142783B2Method and system for identification of channels in an optical networkTROPIC NETWORKS INC·Filed 2003·Granted Nov 28, 2006·19 cites·50 claims
- 1079US7054556B2Channel identification in communications networksTROPIC NETWORKS INC·Filed 2001·Granted May 30, 2006·21 cites·15 claims
- 1178US7783193B2Noise tone avoidance in optical networksALCATEL LUCENT·Filed 2007·Granted Aug 24, 2010·6 cites·30 claims
- 1274US6829438B2Add/drop multiplexing in WDM optical networksTROPIC NETWORKS INC·Filed 2001·Granted Dec 7, 2004·12 cites·13 claims
- 1373US7155122B2Channel identification in communications networksTROPIC NETWORKS INC·Filed 2002·Granted Dec 26, 2006·14 cites·23 claims
- 1464US7321727B2Method for network commissioning using amplified spontaneous emission (ASE) sourcesTROPIC NETWORKS INC·Filed 2005·Granted Jan 22, 2008·3 cites·23 claims
- 1564US6292290B1Methods and apparatus for adjusting power in an optical signal, for providing a seamless optical ring and for providing a bidirectional equalized amplifierNORTEL NETWORKS LTD·Filed 1999·Granted Sep 18, 2001·31 cites·29 claims
- 1661US7174109B2Method and apparatus for encoding optical power and non-payload data in an optical signalNORTEL NETWORKS LTD·Filed 2004·Granted Feb 6, 2007·4 cites·24 claims
- 1761US6574016B1Method and apparatus for ancillary data in a wavelength division multiplexed systemNORTEL NETWORKS LTD·Filed 1998·Granted Jun 3, 2003·27 cites·54 claims
- 1860US7139486B2Method and apparatus for optical add/drop multiplexing in optical networksTROPIC NETWORKS INC·Filed 2003·Granted Nov 21, 2006·4 cites·25 claims
- 1960US7127165B2Method and system for compensating for side effects of cross gain modulation in amplified optical networksTROPIC NETWORKS INC·Filed 2003·Granted Oct 24, 2006·6 cites·13 claims
- 2060US6903867B2Method and apparatus for gain excursion minimization in automatic gain controlled optical systemsTROPIC NETWORKS INC·Filed 2002·Granted Jun 7, 2005·7 cites·26 claims
- 2158US7068932B2Method and system for automatic initialization of an optical networkTROPIC NETWORKS INC·Filed 2002·Granted Jun 27, 2006·5 cites·27 claims
- 2256US7139069B2Methods and apparatus for detecting a faulty component location along an optical path in an optical networkTROPIC NETWORKS INC·Filed 2005·Granted Nov 21, 2006·1 cites·50 claims
- 2350US6963892B2Real-time method and apparatus for performing a large size fast fourier transformTROPIC NETWORKS INC·Filed 2001·Granted Nov 8, 2005·5 cites·14 claims
- 2450US6732058B2Method and apparatus for computation reduction for tone detectionTROPIC NETWORKS INC·Filed 2002·Granted May 4, 2004·4 cites·36 claims
- 2549US7224909B2Method and system for selective optical payload cancellationTROPIC NETWORKS INC·Filed 2003·Granted May 29, 2007·1 cites·16 claims
- 2648US6597161B2Method and apparatus for spectrum analysis with variable detection latency and multiple layer coherent integrationsTROPIC NETWORKS INC·Filed 2001·Granted Jul 22, 2003·4 cites·25 claims
- 2746US7248798B2Method and system for identification of channels in an optical networkTROPIC NETWORKS INC·Filed 2002·Granted Jul 24, 2007·0 cites·24 claims
- 2844US6819879B1Method and apparatus for encoding optical power and non-payload data in an optical signalNORTEL NETWORKS LTD·Filed 1999·Granted Nov 16, 2004·13 cites·10 claims
- 2942US7652816B2Method for network commissioning and upgrading using amplified spontaneous emission (ASE) sourcesALCATEL LUCENT·Filed 2006·Granted Jan 26, 2010·0 cites·35 claims
- 3042US7139480B2System and method for power management in an optical networkTROPIC NETWORKS INC·Filed 2003·Granted Nov 21, 2006·0 cites·22 claims
- 3141US2003099015A1Avoiding amplified spontaneous emission loops in optical networksAR CARD·Filed 2001·Application pending·0 cites
- 3237US2003133713A1Method and system for multi-level power management in an optical networkFiled 2002·Application pending·0 cites
- 3335US9425894B2In-band optical signal-to-noise ratio measurementWAN PING W·Filed 2010·Granted Aug 23, 2016·0 cites·21 claims
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