Inventor · disambiguated record
Raymond A. Birgenheier
Also filed as: BIRGENHEIER RAYMOND A
6 granted patents·299 citations·filing 1987–2004
86Inventor score
Top patents by PatentIndex Score
6 records- 0189US5187719AMethod and apparatus for measuring modulation accuracyHEWLETT PACKARD CO·Filed 1990·Granted Feb 16, 1993·81 cites·16 claims
- 0282US5001724AMethod and apparatus for measuring phase accuracy and amplitude profile of a continuous-phase-modulated signalHEWLETT PACKARD CO·Filed 1989·Granted Mar 19, 1991·72 cites·18 claims
- 0381US4757519ADigital premodulation filterHEWLETT PACKARD CO·Filed 1987·Granted Jul 12, 1988·42 cites·17 claims
- 0476US5140613ABaseband modulation system with improved ROM-based digital filterHEWLETT PACKARD CO·Filed 1990·Granted Aug 18, 1992·95 cites·13 claims
- 0560US7397865B2Systems and methods of using IQ modulation for calibration or measurementAGILENT TECHNOLOGIES INC·Filed 2003·Granted Jul 8, 2008·7 cites·17 claims
- 0651US7310504B2IF frequency response characterization employing overlapping frequency bandsAGILENT TECHNOLOGIES INC·Filed 2004·Granted Dec 18, 2007·2 cites·40 claims
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