Inventor · disambiguated record
Brett C. Walker
Also filed as: WALKER BRETT · WALKER BRETT C · WALKER BRETT CHRISTOPHER
24 granted patents·4 pending applications·366 citations·filing 1998–2020
96Inventor score
Top patents by PatentIndex Score
28 records- 0196US7174190B2Serial bus interface for direct conversion receiverQUALCOMM INC·Filed 2005·Granted Feb 6, 2007·40 cites·3 claims
- 0295US8022756B2Output circuits with class D amplifierQUALCOMM INC·Filed 2007·Granted Sep 20, 2011·33 cites·15 claims
- 0394US11086342B1Low power high speed maximum input supply selectorQUALCOMM INC·Filed 2020·Granted Aug 10, 2021·8 cites·20 claims
- 0491US6711391B1Gain linearizer for variable gain amplifiersQUALCOMM INC·Filed 2000·Granted Mar 23, 2004·51 cites·9 claims
- 0589US6278391B1Method and apparatus for D.C. offset correction in digital-to-analog convertersQUALCOMM INC·Filed 2000·Granted Aug 21, 2001·39 cites·12 claims
- 0684US6154158ADigital-to-analog converter D.C. offset correction comparing converter input and output signalsQUALCOMM INC·Filed 1998·Granted Nov 28, 2000·49 cites·6 claims
- 0782US8750324B2Single wire bus interfaceHANSQUINE DAVID W·Filed 2009·Granted Jun 10, 2014·16 cites·27 claims
- 0882US8633763B2Output circuits with class D amplifierWALKER BRETT C·Filed 2011·Granted Jan 21, 2014·7 cites·21 claims
- 0982US7062229B2Discrete amplitude calibration of oscillators in frequency synthesizersQUALCOMM INC·Filed 2002·Granted Jun 13, 2006·25 cites·11 claims
- 1080US9736567B2Electronics interface for device headset jackQUALCOMM INC·Filed 2014·Granted Aug 15, 2017·5 cites·30 claims
- 1179US6888913B2Wireless communication device with phase-locked loop oscillatorQUALCOMM INC·Filed 2002·Granted May 3, 2005·26 cites·37 claims
- 1277US9755518B2Current measurments in switching regulatorsQUALCOMM INC·Filed 2016·Granted Sep 5, 2017·3 cites·22 claims
- 1377US8536938B2Output circuits with class D amplifierWALKER BRETT C·Filed 2011·Granted Sep 17, 2013·5 cites·10 claims
- 1472US8615212B2Direct conversion receiver architectureLI TAO·Filed 2007·Granted Dec 24, 2013·3 cites·16 claims
- 1570US6845083B2Multi-standard transmitter system and method for a wireless communication systemQUALCOMM INC·Filed 2003·Granted Jan 18, 2005·15 cites·36 claims
- 1669US7546097B2Calibration techniques for frequency synthesizersQUALCOMM INC·Filed 2002·Granted Jun 9, 2009·14 cites·61 claims
- 1767US8626099B2Direct conversion receiver architectureLI TAO·Filed 2006·Granted Jan 7, 2014·2 cites·23 claims
- 1866US10615796B2Level shifterQUALCOMM INC·Filed 2017·Granted Apr 7, 2020·1 cites·30 claims
- 1966US7974317B2Systems and methods for controlling the voltage of signals used to control power amplifiersQUALCOMM INC·Filed 2008·Granted Jul 5, 2011·3 cites·33 claims
- 2058US7570925B2Discrete amplitude calibration of oscillators in frequency synthesizersQUALCOMM INC·Filed 2006·Granted Aug 4, 2009·3 cites·45 claims
- 2154US8019301B2Calibration techniques for frequency synthesizersQUALCOMM INC·Filed 2008·Granted Sep 13, 2011·2 cites·29 claims
- 2249US6906592B2Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristicsQUALCOMM INC·Filed 2003·Granted Jun 14, 2005·5 cites·48 claims
- 2347US2014210482A1Method and apparatus for reducing common mode variations in a voltage sensing componentQUALCOMM INC·Filed 2013·Application pending·0 cites
- 2445US6882185B1Exponential current generator and methodQUALCOMM INC·Filed 1998·Granted Apr 19, 2005·11 cites·14 claims
- 2542US2005259609A1Single wire bus interfaceHANSQUINE DAVID W·Filed 2004·Application pending·0 cites
- 2637US7106138B2Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristicsQUALCOMM INC·Filed 2005·Granted Sep 12, 2006·0 cites·48 claims
- 2733US2011292855A1Dynamic clock buffer power optimization based on modes of operationSAHA JUHI·Filed 2011·Application pending·0 cites
- 2831US2003189463A1Current saving technique for charge pump based phase locked loopsFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →