Inventor · disambiguated record
Donald A. Kerth
Also filed as: KERTH DONALD · KERTH DONALD A
74 granted patents·9 pending applications·2,351 citations·filing 1985–2014
99Inventor score
Top patents by PatentIndex Score
83 records- 0198US7280001B2Capacitor array segmentationSILICON LAB INC·Filed 2005·Granted Oct 9, 2007·62 cites·26 claims
- 0296US6804497B2Partitioned radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2001·Granted Oct 12, 2004·70 cites·38 claims
- 0396US5477481ASwitched-capacitor integrator with chopper stabilization performed at the sampling rateCRYSTAL SEMICONDUCTOR CORP·Filed 1994·Granted Dec 19, 1995·174 cites·18 claims
- 0495US8467483B2Radio-frequency apparatus and associated methodsVISHAKHADATTA G DIWAKAR·Filed 2003·Granted Jun 18, 2013·138 cites·13 claims
- 0595US7092675B2Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signalsSILICON LAB·Filed 2002·Granted Aug 15, 2006·84 cites·35 claims
- 0695US5012244ADelta-sigma modulator with oscillation detect and reset circuitCRYSTAL SEMICONDUCTOR CORP·Filed 1989·Granted Apr 30, 1991·159 cites·28 claims
- 0794US5039989ADelta-sigma analog-to-digital converter with chopper stabilization at the sampling frequencyCRYSTAL SEMICONDUCTOR CORP·Filed 1989·Granted Aug 13, 1991·88 cites·22 claims
- 0893US5079550ACombining continuous time and discrete time signal processing in a delta-sigma modulatorCRYSTAL SEMICONDUCTOR CORP·Filed 1989·Granted Jan 7, 1992·68 cites·14 claims
- 0992US7689190B2Controlling the frequency of an oscillatorST ERICSSON SA·Filed 2005·Granted Mar 30, 2010·24 cites·32 claims
- 1092US5644308AAlgorithmic analog-to-digital converter having redundancy and digital calibrationCRYSTAL SEMICONDUCTOR CORP·Filed 1995·Granted Jul 1, 1997·101 cites·48 claims
- 1192US5583501ADigital-to-analog converter with digital linearity correctionCRYSTAL SEMICONDUCTOR CORP·Filed 1994·Granted Dec 10, 1996·87 cites·59 claims
- 1291US7333831B2Interchangeable receive inputs for band and system swappability in communication systems and related methodsNXP BV·Filed 2005·Granted Feb 19, 2008·46 cites·37 claims
- 1391US6970717B2Digital architecture for radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2002·Granted Nov 29, 2005·41 cites·32 claims
- 1491US5212659ALow precision finite impulse response filter for digital interpolationCRYSTAL SEMICONDUCTOR·Filed 1991·Granted May 18, 1993·96 cites·27 claims
- 1590US8682275B2Apparatus and methods for reducing interference in radio-frequency apparatusKERTH DONALD A·Filed 2010·Granted Mar 25, 2014·11 cites·20 claims
- 1689US7221921B2Partitioning of radio-frequency apparatusSILICON LAB·Filed 2003·Granted May 22, 2007·40 cites·24 claims
- 1788US7941102B2Partitioned radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2007·Granted May 10, 2011·9 cites·12 claims
- 1888US7292091B1Method and apparatus for reducing interferenceSILICON LAB INC·Filed 2005·Granted Nov 6, 2007·9 cites·5 claims
- 1987US7272374B2Dynamic selection of local oscillator signal injection for image rejection in integrated receiversSILICON LAB INC·Filed 2004·Granted Sep 18, 2007·28 cites·22 claims
- 2087US7035611B2Apparatus and method for front-end circuitry in radio-frequency apparatusSILICON LAB INC·Filed 2002·Granted Apr 25, 2006·37 cites·72 claims
- 2186US6226506B1Method and apparatus for eliminating floating voltage nodes within a discreetly variable capacitance used for synthesizing high-frequency signals for wireless communicationsSILICON LAB INC·Filed 1998·Granted May 1, 2001·63 cites·21 claims
- 2285US6993314B2Apparatus for generating multiple radio frequencies in communication circuitry and associated methodsSILICON LAB INC·Filed 2002·Granted Jan 31, 2006·35 cites·14 claims
- 2385US6148048AReceive path implementation for an intermediate frequency transceiverCIRRUS LOGIC INC·Filed 1997·Granted Nov 14, 2000·99 cites·46 claims
- 2484US7676210B2Method for performing dual mode image rejection calibration in a receiverPAULUS TOD·Filed 2005·Granted Mar 9, 2010·11 cites·18 claims
- 2584US7242912B2Partitioning of radio-frequency apparatusSILICON LAB INC·Filed 2003·Granted Jul 10, 2007·33 cites·39 claims
- 2681US8532236B2Quadrature signal generation in radio-frequency apparatus and associated methodsKERTH DONALD A·Filed 2009·Granted Sep 10, 2013·7 cites·15 claims
- 2781US7177610B2Calibrated low-noise current and voltage references and associated methodsSILICON LAB INC·Filed 2002·Granted Feb 13, 2007·22 cites·25 claims
- 2881US7024221B2Notch filter for DC offset reduction in radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2002·Granted Apr 4, 2006·22 cites·31 claims
- 2981US5376936AOne-bit switched-capacitor D/A circuit with continuous time linearityCRYSTAL SEMICONDUCTOR CORP·Filed 1993·Granted Dec 27, 1994·45 cites·14 claims
- 3081US5172115ARatiometric A/D converter with non-rationometric error offsetCRYSTAL SEMICONDUCTOR CORP·Filed 1991·Granted Dec 15, 1992·44 cites·29 claims
- 3180US7702362B2Digital architecture for radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2005·Granted Apr 20, 2010·6 cites·20 claims
- 3280US6650264B1Quadrature sampling architecture and method for analog-to-digital convertersCIRRUS LOGIC INC·Filed 1999·Granted Nov 18, 2003·45 cites·22 claims
- 3380US5644257ASampling circuit charge managementCRYSTAL SEMICONDUCTOR CORP·Filed 1996·Granted Jul 1, 1997·48 cites·12 claims
- 3480US5061925APhase equalization system for a digital-to-analog converter utilizing separate digital and analog sectionsCRYSTAL SEMICONDUCTOR CORP·Filed 1990·Granted Oct 29, 1991·45 cites·12 claims
- 3580US4748418AQuasi auto-zero circuit for sampling amplifiersCRYSTAL SEMICONDUCTOR CORP·Filed 1986·Granted May 31, 1988·27 cites·3 claims
- 3679US7228109B2DC offset reduction in radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2002·Granted Jun 5, 2007·20 cites·40 claims
- 3779US4588941ACascode CMOS bandgap referenceAT & T BELL LAB·Filed 1985·Granted May 13, 1986·44 cites·4 claims
- 3877US7609781B2Wireless communication device with self calibration feature for controlling power outputST ERICSSON SA·Filed 2006·Granted Oct 27, 2009·6 cites·29 claims
- 3977US7366478B2Partitioned radio-frequency apparatus and associated methodsSILICON LAB INC·Filed 2004·Granted Apr 29, 2008·11 cites·8 claims
- 4077US7199650B1Method and apparatus for reducing interferenceSILICON LAB INC·Filed 2005·Granted Apr 3, 2007·4 cites·8 claims
- 4176US7650119B2Wireless communication system and method using digital calibration to control mixer input swingSILICON LAB INC·Filed 2006·Granted Jan 19, 2010·7 cites·16 claims
- 4275US8224259B2Digital architecture for radio-frequency apparatus and associated methodsBEHRENS RICHARD T·Filed 2010·Granted Jul 17, 2012·4 cites·19 claims
- 4375US6311050B1Single integrated circuit phase locked loop for synthesizing high-frequency signals for wireless communications and method for operating sameSILICON LAB INC·Filed 1998·Granted Oct 30, 2001·39 cites·29 claims
- 4475US5717321ADrive current calibration for an analog resistive touch screenCIRRUS LOGIC INC·Filed 1995·Granted Feb 10, 1998·73 cites·32 claims
- 4573US7884666B1Method and apparatus for reducing interferenceSILICON LAB INC·Filed 2005·Granted Feb 8, 2011·4 cites·3 claims
- 4673US7583946B2Wireless communication system and method using clock swapping during image rejection calibrationSILICON LAB INC·Filed 2006·Granted Sep 1, 2009·5 cites·27 claims
- 4773US7031683B2Apparatus and methods for calibrating signal-processing circuitrySILICON LAB INC·Filed 2002·Granted Apr 18, 2006·13 cites·32 claims
- 4872US5579247AMethod and apparatus for decreasing the interference and noise sensitivity of a ratiometric converter type of circuitCRYSTAL SEMICONDUCTOR CORP·Filed 1995·Granted Nov 26, 1996·34 cites·17 claims
- 4972US4804863AMethod and circuitry for generating reference voltagesCRYSTAL SEMICONDUCTOR CORP·Filed 1986·Granted Feb 14, 1989·25 cites·7 claims
- 5071US5412348ACompound triple cascoded mirrorCRYSTAL SEMICONDUCTOR INC·Filed 1993·Granted May 2, 1995·23 cites·10 claims
Showing the top 50 of 83 patent records by PatentIndex Score.
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