Inventor · disambiguated record
Lizhong Zhu
Also filed as: ZHU LIZHONG
113 granted patents·5 pending applications·1,940 citations·filing 1994–2017
99Inventor score
Files withRESEARCH IN MOTION LTD47ZHU LIZHONG38BLACKBERRY LTD23MANKARUSE GEORGE SOLIMAN2RESEACH IN MOTION LTD2
Top patents by PatentIndex Score
118 records- 0196US9270337B2Mobile wireless communications device including NFC antenna matching control circuit and associated methodsBLACKBERRY LTD·Filed 2015·Granted Feb 23, 2016·229 cites·22 claims
- 0296US8934837B2Mobile wireless communications device including NFC antenna matching control circuit and associated methodsRESEARCH IN MOTION LTD·Filed 2013·Granted Jan 13, 2015·235 cites·23 claims
- 0396US8594566B2Mobile wireless communications device with NFC coupling circuit and related methodsZHU LIZHONG·Filed 2012·Granted Nov 26, 2013·26 cites·22 claims
- 0496US7444174B2Mobile wireless communications device with reduced interfering energy into audio circuit and related methodsRESEARCH IN MOTION LTD·Filed 2005·Granted Oct 28, 2008·31 cites·20 claims
- 0596US7398072B2Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitryRESEARCH IN MOTION LTD·Filed 2005·Granted Jul 8, 2008·29 cites·22 claims
- 0696US7328047B2Mobile wireless communications device with reduced interfering energy from the display and related methodsRESEARCH IN MOTION LTD·Filed 2005·Granted Feb 5, 2008·33 cites·24 claims
- 0795US7974582B2Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)RESEARCH IN MOTION LTD·Filed 2008·Granted Jul 5, 2011·24 cites·18 claims
- 0895US7353041B2Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)RESEACH IN MOTION LTD·Filed 2005·Granted Apr 1, 2008·32 cites·29 claims
- 0995US6031505ADual embedded antenna for an RF data communications deviceRESEARCH IN MOTION LTD·Filed 1998·Granted Feb 29, 2000·199 cites·9 claims
- 1095US5966098AAntenna system for an RF data communications deviceRESEARCH IN MOTION LTD·Filed 1996·Granted Oct 12, 1999·188 cites·12 claims
- 1194US7243851B2Mobile wireless communications device with reduced interfering energy from the keyboardRESEARCH IN MOTION LTD·Filed 2005·Granted Jul 17, 2007·34 cites·20 claims
- 1293US7515944B2Wireless headset having improved RF immunity to RF electromagnetic interference produced from a mobile wireless communications deviceRESEARCH IN MOTION LTD·Filed 2005·Granted Apr 7, 2009·22 cites·15 claims
- 1392US8665991B2Communications device with separate I and Q phase power amplification having selective phase and magnitude adjustment and related methodsRESEARCH IN MOTION LTD·Filed 2013·Granted Mar 4, 2014·12 cites·42 claims
- 1492US8315578B2Mobile wireless communications device with separate in-phase and quadrature power amplificationZHU LIZHONG·Filed 2008·Granted Nov 20, 2012·21 cites·20 claims
- 1592US8223885B2Mobile wireless communications device with separate In-phase (I) and Quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensationZHU LIZHONG·Filed 2009·Granted Jul 17, 2012·22 cites·25 claims
- 1692US8099142B2Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)ZHU LIZHONG·Filed 2011·Granted Jan 17, 2012·10 cites·22 claims
- 1792US7483727B2Mobile wireless communications device having improved antenna impedance match and antenna gain from RF energyRESEARCH IN MOTION LTD·Filed 2005·Granted Jan 27, 2009·20 cites·23 claims
- 1892US7480523B2Telephone system having reduced sensitivity to RF interference and related methodsRESEACH IN MOTION LTD·Filed 2006·Granted Jan 20, 2009·19 cites·22 claims
- 1992US5821907AAntenna for a radio telecommunications deviceRESEARCH IN MOTION LTD·Filed 1996·Granted Oct 13, 1998·124 cites·18 claims
- 2091US9350405B2Method and apparatus for antenna tuning and power consumption management in a communication deviceZHU LIZHONG·Filed 2012·Granted May 24, 2016·12 cites·20 claims
- 2190US8244234B2System and method of measuring total radiated power from mobile wireless communications deviceZHU LIZHONG·Filed 2007·Granted Aug 14, 2012·15 cites·18 claims
- 2290US7928925B2Mobile wireless communications device with reduced interfering RF energy into RF metal shield secured on circuit boardRESEARCH IN MOTION LTD·Filed 2010·Granted Apr 19, 2011·7 cites·28 claims
- 2390US7310067B1Mobile wireless communications device with reduced interfering RF energy into RF metal shield secured on circuit boardRESEARCH IN MOTION LTD·Filed 2006·Granted Dec 18, 2007·13 cites·21 claims
- 2490US5764693AWireless radio modem with minimal inter-device RF interferenceRESEARCH IN MOTION LTD·Filed 1995·Granted Jun 9, 1998·167 cites·12 claims
- 2589US8676116B2Electronic device with NFC antenna adjacent display and related methodsZHU LIZHONG·Filed 2011·Granted Mar 18, 2014·11 cites·24 claims
- 2688US8744357B2Mobile wireless communications device having NFC sensor and magnetic sensor and associated methodsZHU LIZHONG·Filed 2011·Granted Jun 3, 2014·9 cites·20 claims
- 2788US8190112B2Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitryCORRIGAN MICHAEL·Filed 2011·Granted May 29, 2012·9 cites·19 claims
- 2888US7925315B2Portable audio device having reduced sensitivity to RF interference and related methodsRESEARCH IN MOTION LTD·Filed 2009·Granted Apr 12, 2011·10 cites·24 claims
- 2988US7363063B2Mobile wireless communications device with reduced interference from the keyboard into the radio receiverRESEARCH IN MOTION LTD·Filed 2005·Granted Apr 22, 2008·15 cites·22 claims
- 3087US8451941B2Communications device with separate I and Q phase power amplification having selective phase and magnitude adjustment and related methodsZHU LIZHONG·Filed 2010·Granted May 28, 2013·8 cites·54 claims
- 3187US7941193B2Mobile wireless communications device with reduced interfering energy into audio circuit and related methodsRESEARCH IN MOTION LTD·Filed 2008·Granted May 10, 2011·9 cites·25 claims
- 3286US9806826B2Mobile wireless communications device with reduced interfering energy from the display and related methodsBLACKBERRY LTD·Filed 2013·Granted Oct 31, 2017·4 cites·20 claims
- 3386US7616973B2Portable audio device having reduced sensitivity to RF interference and related methodsRESEARCH IN MOTION LTD·Filed 2006·Granted Nov 10, 2009·9 cites·25 claims
- 3485US8660612B2Electronic device having an NFC antenna in a speaker compartment and related methodsZHU LIZHONG·Filed 2011·Granted Feb 25, 2014·8 cites·16 claims
- 3584US10321376B2Determining handover parametersBLACKBERRY LTD·Filed 2016·Granted Jun 11, 2019·5 cites·13 claims
- 3684US8249671B2Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)ZHU LIZHONG·Filed 2012·Granted Aug 21, 2012·4 cites·22 claims
- 3783US9307505B2System and method for adjusting a power transmission level for a communication deviceBLACKBERRY LTD·Filed 2013·Granted Apr 5, 2016·5 cites·20 claims
- 3883US8750417B2Mobile wireless communications device with separate in-phase (I) and quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensationBLACKBERRY LTD·Filed 2013·Granted Jun 10, 2014·5 cites·30 claims
- 3981US7899427B2Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitryRESEARCH IN MOTION LTD·Filed 2008·Granted Mar 1, 2011·5 cites·18 claims
- 4080US9685982B2Mobile wireless communications device with separate in-phase and quadrature power amplificationZHU LIZHONG·Filed 2012·Granted Jun 20, 2017·4 cites·23 claims
- 4180US9413066B2Method and apparatus for beam forming and antenna tuning in a communication deviceZHU LIZHONG·Filed 2012·Granted Aug 9, 2016·5 cites·12 claims
- 4280US8244306B2Mobile wireless communications device with reduced interfering energy from the display and related methodsZHU LIZHONG·Filed 2011·Granted Aug 14, 2012·3 cites·25 claims
- 4380US8064963B2Mobile wireless communications device with reduced interfering energy from the display and related methodsZHU LIZHONG·Filed 2007·Granted Nov 22, 2011·5 cites·18 claims
- 4480US7715578B2Hearing aid having improved RF immunity to RF electromagnetic interference produced from a wireless communications deviceRESEARCH IN MOTION LTD·Filed 2005·Granted May 11, 2010·8 cites·23 claims
- 4579US9941910B2Method and apparatus for antenna tuning and power consumption management in a communication deviceBLACKBERRY LTD·Filed 2016·Granted Apr 10, 2018·3 cites·20 claims
- 4679US8526535B2Mobile wireless communications device with separate in-phase (I) and quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensationZHU LIZHONG·Filed 2012·Granted Sep 3, 2013·4 cites·27 claims
- 4778US10623540B2Electronic device with NFC antenna adjacent display and related methodsBLACKBERRY LTD·Filed 2017·Granted Apr 14, 2020·3 cites·20 claims
- 4878US7932864B2Mobile wireless communications device with antenna contact having reduced RF inductanceRESEARCH IN MOTION LTD·Filed 2008·Granted Apr 26, 2011·8 cites·24 claims
- 4977US9686690B2Method and apparatus for calculating a coverage signal strength indicatorBLACKBERRY LTD·Filed 2014·Granted Jun 20, 2017·3 cites·20 claims
- 5077US8755744B2Mobile wireless communications device with NFC coupling circuit and related methodsBLACKBERRY LTD·Filed 2013·Granted Jun 17, 2014·3 cites·22 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →