Inventor · disambiguated record
James S. Irwin
Also filed as: IRWIN JAMES · IRWIN JAMES S · IRWIN JAMES STUART
30 granted patents·1 pending application·1,048 citations·filing 1974–2014
98Inventor score
Top patents by PatentIndex Score
31 records- 0198US5323157ASigma-delta digital-to-analog converter with reduced noiseMOTOROLA INC·Filed 1993·Granted Jun 21, 1994·247 cites·10 claims
- 0296US4121218AAdjustable antenna arrangement for a portable radioMOTOROLA INC·Filed 1977·Granted Oct 17, 1978·116 cites·9 claims
- 0387US4952889ALoop filter modulated synthesizerMOTOROLA INC·Filed 1989·Granted Aug 28, 1990·59 cites·13 claims
- 0486US5357252ASigma-delta modulator with improved tone rejection and method thereforMOTOROLA INC·Filed 1993·Granted Oct 18, 1994·61 cites·23 claims
- 0585US5632937AMethod of installing a refractory liningMAGNECO METREL INC·Filed 1995·Granted May 27, 1997·24 cites·24 claims
- 0684US3946397AInductor or antenna arrangement with integral series resonating capacitorsMOTOROLA INC·Filed 1974·Granted Mar 23, 1976·29 cites·8 claims
- 0783US4862516ASystem for automatically tuning the antenna of a miniature portable communications deviceMOTOROLA INC·Filed 1987·Granted Aug 29, 1989·55 cites·36 claims
- 0881US5774023AAdaptive phase locked loop system with charge pump having dual current outputMOTOROLA INC·Filed 1997·Granted Jun 30, 1998·51 cites·16 claims
- 0979US5504751AMethod and apparatus for extracting digital information from an asynchronous data streamMOTOROLA INC·Filed 1994·Granted Apr 2, 1996·50 cites·19 claims
- 1077US4959624ACoil-less overtone crystal oscillatorMOTOROLA INC·Filed 1990·Granted Sep 25, 1990·46 cites·12 claims
- 1177US4559505AFrequency synthesizer with improved priority channel switchingMOTOROLA INC·Filed 1983·Granted Dec 17, 1985·30 cites·5 claims
- 1276US4817196AApparatus for tuning the antenna of a miniature personal communications deviceMOTOROLA INC·Filed 1987·Granted Mar 28, 1989·40 cites·19 claims
- 1373US5030952ASigma-delta type analog to digital converter with trimmed output and feedbackMOTOROLA INC·Filed 1990·Granted Jul 9, 1991·34 cites·11 claims
- 1470US5095287APhase locked loop having a charge pump with resetMOTOROLA INC·Filed 1991·Granted Mar 10, 1992·33 cites·7 claims
- 1569US5057840AΣ-Δmodulator for digital-to-analog converterMOTOROLA INC·Filed 1990·Granted Oct 15, 1991·28 cites·11 claims
- 1666US6700451B1Cross coupled cascode voltage controlled oscillatorMOTOROLA INC·Filed 2002·Granted Mar 2, 2004·9 cites·16 claims
- 1766US4110704AAstable multivibrator with temperature compensation and requiring a single supply voltageMOTOROLA INC·Filed 1977·Granted Aug 29, 1978·11 cites·10 claims
- 1855US4935707ACurrent reduction of a synthesizerMOTOROLA INC·Filed 1989·Granted Jun 19, 1990·12 cites·13 claims
- 1953US5220326ADigital-to-analog converter with improved performance and method thereforMOTOROLA INC·Filed 1992·Granted Jun 15, 1993·16 cites·14 claims
- 2052US5999017ACMOS implemented output buffer circuit for providing ECL level signalsMOTOROLA INC·Filed 1997·Granted Dec 7, 1999·12 cites·19 claims
- 2151US5231395ASigma-delta digital-to-analog converter with reduced distortionMOTOROLA INC·Filed 1992·Granted Jul 27, 1993·15 cites·20 claims
- 2246US5339079ADigital-to-analog converter with a flexible data interfaceMOTOROLA INC·Filed 1992·Granted Aug 16, 1994·18 cites·20 claims
- 2344US4785263AFET oscillator circuitMOTOROLA INC·Filed 1987·Granted Nov 15, 1988·8 cites·7 claims
- 2443US6065140AOptimized computation of first and second divider values for a phase locked loop systemMOTOROLA INC·Filed 1997·Granted May 16, 2000·10 cites·11 claims
- 2543US5339278AMethod and apparatus for standby recovery in a phase locked loopMOTOROLA INC·Filed 1993·Granted Aug 16, 1994·11 cites·12 claims
- 2641US2014324952A1Method and apparatus for network communicationVODAFONE IP LICENSING LTD·Filed 2014·Application pending·0 cites
- 2740US5795508AMethod of lining a blast furnaceMAGNECO METREL INC·Filed 1996·Granted Aug 18, 1998·4 cites·17 claims
- 2840US5484138AConsumable form with adjustable wallsMAGNECO METREL INC·Filed 1994·Granted Jan 16, 1996·3 cites·20 claims
- 2939US5511762AConsumable form with degradable liningMAGNECO METREL INC·Filed 1993·Granted Apr 30, 1996·8 cites·8 claims
- 3034US5122799AMulti-modulator digital-to-analog converterMOTOROLA INC·Filed 1990·Granted Jun 16, 1992·5 cites·9 claims
- 3134US4785264ADual FET oscillatorMOTOROLA INC·Filed 1987·Granted Nov 15, 1988·3 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when James S. Irwin files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →