Inventor · disambiguated record
Chung-Zin Liu
Also filed as: LIU CHUNG-ZIN
24 granted patents·10 pending applications·1,253 citations·filing 1996–2012
97Inventor score
Files withLUCENT TECHNOLOGIES INC16ALCATEL LUCENT USA INC4CAI YIGANG3LIU CHUNG-ZIN3GRINSHPUN EDWARD2
Top patents by PatentIndex Score
34 records- 0197US7844728B2Packet filtering/classification and/or policy control support from both visited and home networksALCATEL LUCENT USA INC·Filed 2007·Granted Nov 30, 2010·248 cites·18 claims
- 0294US6061337ASystem and method for CDMA handoff using telemetry to determine the need for handoff and to select the destination cell siteLUCENT TECHNOLOGIES INC·Filed 1996·Granted May 9, 2000·279 cites·15 claims
- 0392US6392999B1Conferencing and announcement generation for wireless VoIP and VoATM callsLUCENT TECHNOLOGIES INC·Filed 2000·Granted May 21, 2002·87 cites·46 claims
- 0491US8175575B2Online charging for roaming users in a proxy online charging system of a visited networkCAI YIGANG·Filed 2008·Granted May 8, 2012·20 cites·18 claims
- 0588US8116728B2Charging in LTE/EPC communication networksCAI YIGANG·Filed 2008·Granted Feb 14, 2012·16 cites·20 claims
- 0688US7920523B2Method of supporting quality-of-service application session continuity during inter-technology handover using a common packet data functionALCATEL LUCENT USA INC·Filed 2008·Granted Apr 5, 2011·21 cites·18 claims
- 0786US6434139B1Method for optimizing mobile wireless communications routed across plural interconnected networksLUCENT TECHNOLOGIES INC·Filed 1999·Granted Aug 13, 2002·129 cites·19 claims
- 0884US5943332AMethod for implementing virtual private wireless telecommunications networksLUCENT TECHNOLOGIES INC·Filed 1996·Granted Aug 24, 1999·117 cites·12 claims
- 0981US7586857B2Fast network SIP/SDP procedures for conference operations upon request from end user with optimization of network resourcesALCATEL LUCENT USA INC·Filed 2003·Granted Sep 8, 2009·33 cites·18 claims
- 1075US6002679AMethod for assigning feature sets on virtual private telecommunications networksLUCENT TECHNOLOGIES INC·Filed 1996·Granted Dec 14, 1999·79 cites·14 claims
- 1173US8204022B2Method of providing transcoding during voice-over-internet protocol handoffLASSERS HAROLD AARON·Filed 2008·Granted Jun 19, 2012·7 cites·18 claims
- 1273US7978683B2Method of transferring call transition messages between network controllers of different radio technologiesALCATEL LUCENT USA INC·Filed 2004·Granted Jul 12, 2011·18 cites·37 claims
- 1372US7062265B1Architecture to support service features for wireless calls in a wireless telecommunication systemLUCENT TECHNOLOGIES INC·Filed 2000·Granted Jun 13, 2006·20 cites·35 claims
- 1471US7013129B2Queuing for radio channel availabilityLUCENT TECHNOLOGIES INC·Filed 2001·Granted Mar 14, 2006·17 cites·20 claims
- 1564US6405040B1Implementing and selecting between virtual private wireless telecommunications networksLUCENT TECHNOLOGIES INC·Filed 1997·Granted Jun 11, 2002·51 cites·12 claims
- 1663US6658255B1Enhanced wireless radio channel utilizationLUCENT TECHNOLOGIES INC·Filed 2000·Granted Dec 2, 2003·9 cites·24 claims
- 1761US8792823B2Approach for quality of service control on un-wanted services (e.g. voice over internet protocol or multimedia) over wireline and wireless IP networkLIU CHUNG-ZIN·Filed 2010·Granted Jul 29, 2014·2 cites·10 claims
- 1854US6434382B2Cellular call processor having concurrent instances of call models to support mixed media communication connectionsLUCENT TECHNOLOGIES INC·Filed 2001·Granted Aug 13, 2002·3 cites·18 claims
- 1951US2005113077A1System for providing interoperability of call pickup service in a proprietary enterprise communication network and a cellular communication networkFiled 2003·Application pending·0 cites
- 2050US6377572B1Virtual resource allocation method and apparatus for wireless data communication systemsLUCENT TECHNOLOGIES INC·Filed 1998·Granted Apr 23, 2002·27 cites·21 claims
- 2150US5905953AMethod for implementing private wireless telecommunications networksLUCENT TECHNOLOGIES INC·Filed 1996·Granted May 18, 1999·26 cites·9 claims
- 2250US2012157041A1Online charging for roaming users in a proxy online charging system of a visited networkCAI YIGANG·Filed 2012·Application pending·0 cites
- 2346US9130965B2Method of call conferencing to support session continuity for multi-mode clientsGRINSHPUN EDWARD·Filed 2007·Granted Sep 8, 2015·0 cites·20 claims
- 2445US2005113134A1System for providing interoperability of a proprietary enterprise communication network with a cellular communication networkFiled 2003·Application pending·0 cites
- 2544US2009141683A1Method of best effort handoff to maintain radio bearer and mip session continuity for multi-mode mobile unitsGRINSHPUN EDWARD·Filed 2007·Application pending·0 cites
- 2643US2008095136A1Approach for QoS control on un-wanted service (e.g. VoIP or Multimedia) over wireless and wireless IP networkLIU CHUNG-ZIN·Filed 2006·Application pending·0 cites
- 2742US6625153B1Distributed cellular communication system architecture for the co-existence of multiple technologiesLUCENT TECHNOLOGIES INC·Filed 1999·Granted Sep 23, 2003·15 cites·14 claims
- 2842US6285877B1Cellular call processor having concurrent instances of call models to support mixed media communication connectionsLUCENT TECHNOLOGIES INC·Filed 1998·Granted Sep 4, 2001·14 cites·8 claims
- 2942US2005043017A1Methods and apparatus for provision of centralized calling information and features to wireless usersLUCENT TECHNOLOGIES INC·Filed 2003·Application pending·0 cites
- 3042US2002107000A1Rate change notificationFiled 2001·Application pending·0 cites
- 3142US2010128613A1Detection of bearer loss in an IP-based multimedia sessionLIU CHUNG-ZIN·Filed 2008·Application pending·0 cites
- 3241US5949770AMethod for assigning feature sets on virtual private telecommunications networksLUCENT TECHNOLOGIES INC·Filed 1996·Granted Sep 7, 1999·15 cites·12 claims
- 3337US2002193117A1Call reservation for wireless systemsFiled 2001·Application pending·0 cites
- 3437US2002193120A1Shared capacity for wireless networksFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →