Inventor · disambiguated record
Kenneth Jay Helfrich
Also filed as: HELFRICH KENNETH · HELFRICH KENNETH J · HELFRICH KENNETH JAY
27 granted patents·274 citations·filing 1993–2020
96Inventor score
Files withMAXIM INTEGRATED PRODUCTS10THOMSON CONSUMER ELECTRONICS9HELFRICH KENNETH JAY3SALA LEONARDO3KIM SANG HOON1
Top patents by PatentIndex Score
27 records- 0194US8862921B1Apparatus for remote wake-up during dedicated charging modeKIM SANG HOON·Filed 2011·Granted Oct 14, 2014·27 cites·11 claims
- 0293US8064613B1Electret microphone detection using a current sourceHELFRICH KENNETH JAY·Filed 2008·Granted Nov 22, 2011·42 cites·14 claims
- 0390US8290171B1Headset with microphone and wired remote controlHELFRICH KENNETH JAY·Filed 2009·Granted Oct 16, 2012·38 cites·5 claims
- 0489US8725910B1Cable connection detection for electronic devicesSALA LEONARDO·Filed 2011·Granted May 13, 2014·17 cites·20 claims
- 0589US8358100B2USB dedicated charger identification circuitMAXIM INTEGRATED PRODUCTS·Filed 2009·Granted Jan 22, 2013·29 cites·3 claims
- 0687US8990470B1Virtual hubs for communication interfaceSALA LEONARDO·Filed 2011·Granted Mar 24, 2015·13 cites·20 claims
- 0781US7802043B2Methods and apparatus for adding an autonomous controller to an existing architectureMAXIM INTEGRATED PRODUCTS·Filed 2006·Granted Sep 21, 2010·11 cites·14 claims
- 0878US8723476B2USB dedicated charger identification circuitMAXIM INTEGRATED PRODUCTS·Filed 2013·Granted May 13, 2014·5 cites·14 claims
- 0972US9348382B2Method and apparatus for providing power to an electronic deviceMAXIM INTERGRATED PRODUCTS INC·Filed 2013·Granted May 24, 2016·3 cites·16 claims
- 1067US10209752B2Method for providing power to an electronic deviceMAXIM INTEGRATED PRODUCTS·Filed 2016·Granted Feb 19, 2019·1 cites·20 claims
- 1166US11429179B2Method and apparatus for disabling high speed bus operation under high common mode voltage conditionsMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Aug 30, 2022·0 cites·18 claims
- 1260US8730978B2Analog front end protocol converter/adapter for SLPI protocolSALA LEONARDO·Filed 2010·Granted May 20, 2014·1 cites·36 claims
- 1359US5686767AApportioning minimal standby powerTHOMSON CONSUMER ELECTRONICS·Filed 1994·Granted Nov 11, 1997·18 cites·15 claims
- 1459US5475286ADeflection waveform correction circuitTHOMSON CONSUMER ELECTRONICS·Filed 1993·Granted Dec 12, 1995·16 cites·19 claims
- 1558US10908671B2Method and apparatus for disabling high speed bus operation under high common mode voltage conditionsMAXIM INTEGRATED PRODUCTS·Filed 2017·Granted Feb 2, 2021·0 cites·12 claims
- 1652US9785598B2USB hubs with galvanic isolationMAXIM INTEGRATED PRODUCTS·Filed 2015·Granted Oct 10, 2017·0 cites·20 claims
- 1751US10051395B2Accessory management and data communication using audio portMAXIM INTEGRATED PRODUCTS·Filed 2014·Granted Aug 14, 2018·0 cites·15 claims
- 1851US9009382B2USB hubs with galvanic isolationMAXIM INTEGRATED PRODUCTS·Filed 2012·Granted Apr 14, 2015·0 cites·18 claims
- 1950US5323092ADeflection waveform correction circuitTHOMSON CONSUMER ELECTRONICS·Filed 1993·Granted Jun 21, 1994·11 cites·13 claims
- 2048US11342894B2Driver circuitry and associated methodsMAXIM INTEGRATED PRODUCTS·Filed 2019·Granted May 24, 2022·0 cites·16 claims
- 2148US5486866AOscillator free run frequency setting by data bus controlTHOMSON CONSUMER ELECTRONICS·Filed 1994·Granted Jan 23, 1996·13 cites·20 claims
- 2247US9485580B1Headset with microphone and wired remote controlHELFRICH KENNETH JAY·Filed 2012·Granted Nov 1, 2016·0 cites·9 claims
- 2343US5615092ASwitching power supply regulator with an inductive pulse circuitTHOMSON CONSUMER ELECTRONICS·Filed 1995·Granted Mar 25, 1997·9 cites·15 claims
- 2441US5953080AStandby circuit for a televisionTHOMSON CONSUMER ELECTRONICS·Filed 1997·Granted Sep 14, 1999·9 cites·6 claims
- 2540US5412290A50 Hz parabolic signal filterTHOMSON CONSUMER ELECTRONICS·Filed 1994·Granted May 2, 1995·6 cites·20 claims
- 2634US5675219ADegaussing circuit for wide-range acTHOMSON CONSUMER ELECTRONICS·Filed 1995·Granted Oct 7, 1997·3 cites·10 claims
- 2731US5473386Avideo display device employing two SYNC generatorsTHOMSON CONSUMER ELECTRONICS·Filed 1994·Granted Dec 5, 1995·2 cites·16 claims
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