Luo; Sifen

Patent Applications and Registrations

Patent applications and USPTO patent grants for Luo; Sifen.The latest application filed is for "bias boosting circuit for amplifier".

Company Profile

4.19.23

Luo; Sifen - Ellicott City MD
Luo; Sifen - Potomac MD
Luo; Sifen - Irvine CA
Luo; Sifen - Rockville MD
Luo; Sifen - Hartsdale NY

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Bias boosting circuit for amplifier Grant 10,340,852 - Luo , et al.	2019-07-02
Bias Boosting Circuit For Amplifier App 20190115871 - LUO; SIFEN ; et al.	2019-04-18
Structures for registration error compensation Grant 9,748,620 - Richley , et al. August 29, 2	2017-08-29
Bias-boosting Circuit With A Modified Wilson Current Mirror Circuit For Radio Frequency Power Amplifiers App 20160308500 - Luo; Sifen ; et al.	2016-10-20
Bias-boosting Circuit With Dual Current Mirrors For Rf Power Amplifier App 20160134243 - Luo; Sifen ; et al.	2016-05-12
Coupling On-die Inductors For Radio-frequency Applications App 20160133375 - Li; Haitao ; et al.	2016-05-12
Bias-boosting bias circuit for radio frequency power amplifier Grant 9,214,902 - Luo , et al. December 15, 2	2015-12-15
Structures For Registration Error Compensation App 20150091670 - Richley; Edward A. ; et al.	2015-04-02
Bias-boosting Bias Circuit For Radio Frequency Power Amplifier App 20150061770 - Luo; Sifen ; et al.	2015-03-05
Structures for registration error compensation Grant 8,933,768 - Richley , et al. January 13, 2	2015-01-13
Structures For Registration Error Compensation App 20130099878 - Richley; Edward A. ; et al.	2013-04-25
Control of power amplifiers in devices using transmit beamforming Grant 7,899,414 - Sugar , et al. March 1, 2	2011-03-01
Control Of Power Amplifiers In Devices Using Transmit Beamforming App 20090285331 - Sugar; Gary L. ; et al.	2009-11-19
RF amplifier with a bias boosting scheme Grant 7,365,604 - Luo , et al. April 29, 2	2008-04-29
Amplifier circuit having an impedance-controllable bias-boosting circuit Grant 7,332,968 - Luo February 19, 2	2008-02-19
Amplifier circuit having an extended Wilson current-mirror self-bias boosting circuit Grant 7,262,666 - Luo August 28, 2	2007-08-28
RF amplifier with a bias boosting scheme App 20070139120 - Luo; Sifen ; et al.	2007-06-21
Amplifier circuit having an extended wilson current-mirror self-bias boosting circuit App 20060158256 - Luo; Sifen	2006-07-20
Control of power amplifiers in devices using transmit beamforming App 20060116087 - Sugar; Gary L. ; et al.	2006-06-01
Amplifier circuit having an impedance-controllable bias-boosting circuit App 20060033576 - Luo; Sifen	2006-02-16
Efficiency of power amplifiers in devices using transmit beamforming Grant 6,993,299 - Sugar , et al. January 31, 2	2006-01-31
Improving the efficiency of power amplifiers in devices using transmit beamforming Grant 6,871,049 - Sugar , et al. March 22, 2	2005-03-22
Efficiency of power amplifers in devices using transmit beamforming App 20040224648 - Sugar, Gary L. ; et al.	2004-11-11
Capacitor coupled dynamic bias boosting circuit for a power amplifier Grant 6,791,418 - Luo , et al. September 14, 2	2004-09-14
Simple self-biased cascode amplifier circuit Grant 6,778,016 - Luo August 17, 2	2004-08-17
Simple self-biased cascode amplifier circuit App 20040085130 - Luo, Sifen	2004-05-06
Capacitor coupled dynamic bias boosting circuit for a power amplifier App 20040066234 - Luo, Sifen ; et al.	2004-04-08
Power measurement circuit including harmonic filter Grant 6,657,425 - Sowlati , et al. December 2, 2	2003-12-02
Improving the Efficiency of Power Amplifiers in Devices Using Transmit Beamforming App 20030181173 - Sugar, Gary L. ; et al.	2003-09-25
Radio frequency power amplifier for cellular telephones Grant 6,624,700 - Luo , et al. September 23, 2	2003-09-23
RF amplifier with current mirror bias-boosting App 20030112073 - Luo, Sifen ; et al.	2003-06-19
Radio frequency power amplifier for cellular telephones App 20030011434 - Luo, Sifen ; et al.	2003-01-16
Circuit technique for montonic on chip power detection App 20020196044 - Sowlati, Tirdad ; et al.	2002-12-26
Self-boosting circuit for a power amplifier Grant 6,492,875 - Luo , et al. December 10, 2	2002-12-10
Apparatus and method for tuning an inter-stage matching network of an integrated multistage amplifier App 20020163388 - Luo, Sifen	2002-11-07
High-frequency amplifier circuit having a directly-connected bias circuit Grant 6,456,163 - Luo , et al. September 24, 2	2002-09-24
High-frequency Amplifier Circuit Having A Directly-connected Bias Circuit App 20020125954 - Luo, Sifen ; et al.	2002-09-12
Self-boosting circuit for a power amplifier App 20020067209 - Luo, Sifen ; et al.	2002-06-06
High-frequency amplifier circuit with independent control of quiescent current and bias impedance Grant 6,359,516 - Luo , et al. March 19, 2	2002-03-19
Dynamic bias boosting circuit for a power amplifier Grant 6,300,837 - Sowlati , et al. October 9, 2	2001-10-09

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