Inventor · disambiguated record
Angela Chiu
Also filed as: CHIU ANGELA · CHIU ANGELA L · CHIU ANGELA LAN
40 granted patents·2 pending applications·680 citations·filing 1998–2022
98Inventor score
Top patents by PatentIndex Score
42 records- 0196US10432342B1Routing and regenerator planning in a carrier's core reconfigurable optical networkAT & T IP I LP·Filed 2018·Granted Oct 1, 2019·22 cites·20 claims
- 0296US7859993B1Two-phase fast reroute with optimized traffic engineeringAT & T IP II LP·Filed 2008·Granted Dec 28, 2010·55 cites·20 claims
- 0394US8515280B1Physically-diverse routing in heterogeneous optical networksLI GUANGZHI·Filed 2010·Granted Aug 20, 2013·21 cites·23 claims
- 0492US6973033B1Method and apparatus for provisioning and monitoring internet protocol quality of serviceAT & T CORP·Filed 2004·Granted Dec 6, 2005·80 cites·1 claims
- 0591US6744767B1Method and apparatus for provisioning and monitoring internet protocol quality of serviceAT & T CORP·Filed 1999·Granted Jun 1, 2004·201 cites·21 claims
- 0690US7230924B2Method and apparatus for communications traffic engineeringAT & T CORP·Filed 2001·Granted Jun 12, 2007·60 cites·31 claims
- 0788US8260133B2Standby restoration signaling for optical networksLI GUANGZHI·Filed 2009·Granted Sep 4, 2012·11 cites·21 claims
- 0888US7171070B1Arrangement for low cost path protection for optical communications networksAT & T CORP·Filed 2005·Granted Jan 30, 2007·12 cites·20 claims
- 0987US10491546B2Provider edge router system and provider edge router system controller for hybrid virtualization of provider edge router functionsAT & T IP I LP·Filed 2015·Granted Nov 26, 2019·6 cites·16 claims
- 1087US10148349B2Joint IP/optical layer restoration after a router failureAT & T IP II LP·Filed 2017·Granted Dec 4, 2018·4 cites·20 claims
- 1187US8452176B2Reachability matrices spanning multiple domains in an optical networkDOVERSPIKE ROBERT·Filed 2011·Granted May 28, 2013·8 cites·20 claims
- 1287US8150257B1Shared mesh restoration with pre-configured standby lightpathsCHOUDHURY GAGAN L·Filed 2008·Granted Apr 3, 2012·20 cites·12 claims
- 1384US11552723B2Routing and regenerator planning in a carrier's core reconfigurable optical networkAT & T IP I LP·Filed 2019·Granted Jan 10, 2023·3 cites·20 claims
- 1484US10200121B2Reachability determination in wavelength division multiplexing network based upon fiber loss measurementsAT & T IP I LP·Filed 2017·Granted Feb 5, 2019·3 cites·20 claims
- 1584US7526198B1Methods of restoration in an ultra-long haul optical networkAT & T CORP·Filed 2005·Granted Apr 28, 2009·8 cites·6 claims
- 1683US7228027B1Arrangement for low cost path protection for optical communications networksAT & T CORP·Filed 2006·Granted Jun 5, 2007·7 cites·18 claims
- 1781US10554301B2Reachability determination in wavelength division multiplexing network based upon fiber loss measurementsAT & T IP I LP·Filed 2019·Granted Feb 4, 2020·2 cites·20 claims
- 1878US9735912B2Method and apparatus for routing traffic using asymmetrical optical connectionsAT & T IP I LP·Filed 2016·Granted Aug 15, 2017·2 cites·12 claims
- 1978US9705590B2Joint IP/optical layer restoration after a router failureAT & T IP II LP·Filed 2015·Granted Jul 11, 2017·2 cites·18 claims
- 2078US9264344B2Method and apparatus for providing a route recommendationAT & T IP I LP·Filed 2015·Granted Feb 16, 2016·3 cites·20 claims
- 2178US9246623B2Method and apparatus for routing traffic using asymmetrical optical connectionsAT & T IP I LP·Filed 2013·Granted Jan 26, 2016·3 cites·20 claims
- 2278US7389018B1Arrangement for low cost path protection for optical communications networksAT & T CORP·Filed 2007·Granted Jun 17, 2008·6 cites·18 claims
- 2376US7805075B2Methods of restoration in an ultra-long haul optical networkAT & T IP II LP·Filed 2009·Granted Sep 28, 2010·4 cites·10 claims
- 2476US7769296B1Arrangement for reducing multiplexing and demultiplexing cost in ultra long haul (ULH) all-optical networks by minimizing number of required mux/demux groupsAT & T IP II LP·Filed 2005·Granted Aug 3, 2010·7 cites·19 claims
- 2575US8989018B2Method and apparatus for providing a route recommendationLI GUANGZHI·Filed 2010·Granted Mar 24, 2015·4 cites·17 claims
- 2673US12323231B2Routing and regenerator planning in a carrier's core reconfigurable optical networkAT & T IP I LP·Filed 2022·Granted Jun 3, 2025·0 cites·20 claims
- 2773US9042720B2Joint IP/optical layer restoration after a router failureCHIU ANGELA L·Filed 2005·Granted May 26, 2015·5 cites·3 claims
- 2873US7778182B2Method and apparatus for communications traffic engineeringAT & T IP II LP·Filed 2005·Granted Aug 17, 2010·4 cites·19 claims
- 2973US6385170B1Method and system for dynamically triggering flow-based quality of service shortcuts through a routerAT & T CORP·Filed 1998·Granted May 7, 2002·80 cites·23 claims
- 3070US11349566B2Reachability determination in wavelength division multiplexing network based upon fiber loss measurementsAT & T IP I LP·Filed 2020·Granted May 31, 2022·0 cites·20 claims
- 3170US8687956B2Standby restoration signaling for optical networksLI GUANGZHI·Filed 2012·Granted Apr 1, 2014·2 cites·10 claims
- 3267US11032003B2Reachability determination in wavelength division multiplexing network based upon fiber loss measurementsAT & T IP I LP·Filed 2020·Granted Jun 8, 2021·0 cites·20 claims
- 3363US8897641B2Reachability matrices spanning multiple domains in an optical networkAT & T IP I LP·Filed 2013·Granted Nov 25, 2014·1 cites·20 claims
- 3456US10171197B2Method and apparatus for routing traffic using asymmetrical optical connectionsAT & T IP I LP·Filed 2017·Granted Jan 1, 2019·0 cites·6 claims
- 3556US7948899B2Method and apparatus for communications traffic engineeringAT & T IP II LP·Filed 2009·Granted May 24, 2011·0 cites·20 claims
- 3655US9413640B2Method and apparatus for routing traffic using asymmetrical optical connectionsAT & T IP I LP·Filed 2015·Granted Aug 9, 2016·0 cites·18 claims
- 3755US6999420B1Method and apparatus for an architecture and design of internet protocol quality of service provisioningAT & T CORP·Filed 1999·Granted Feb 14, 2006·33 cites·15 claims
- 3853US7551816B1Arrangement for low cost path protection for optical communications networksAT & T CORP·Filed 2008·Granted Jun 23, 2009·0 cites·20 claims
- 3948US8195048B2Optical transport system architecture for remote terminal connectivityCHIU ANGELA·Filed 2009·Granted Jun 5, 2012·0 cites·26 claims
- 4047US7593637B2Optical transport system architecture for remote terminal connectivityCHIU ANGELA·Filed 2003·Granted Sep 22, 2009·1 cites·69 claims
- 4145US2002063916A1Joint IP/optical layer restoration after a router failureFiled 2001·Application pending·0 cites
- 4237US2006165410A1Arrangement for avoiding node isolation in all-optical communication networksAT & T CORP·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →