Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7079598 | Complex phase-locked loop demodulator for low-IF and zero-IF radio receivers | Neil Birkett, Norm Filiol | 2006-07-18 |
| 6944257 | Phase error cancellation circuit and method for fractional frequency dividers and circuits incorporating same | — | 2005-09-13 |
| 6822488 | Frequency synthesizer | — | 2004-11-23 |
| 6785346 | Complex phase-locked loop demodulator for low-IF and zero-IF radio receivers | Neil Birkett, Norm Filiol | 2004-08-31 |
| 6570518 | Multiple stage delta sigma modulator | Tadeuse A. Kwasniewski, Thierry Lepley | 2003-05-27 |
| 6515553 | Delta-sigma based dual-port modulation scheme and calibration techniques for similar modulation schemes | Norman M. Filiol, Mark M. Cloutier, Christian Cojocaru, Florinel G. Balteanu | 2003-02-04 |
| 6404291 | Linear low noise phase loop frequency synthesizer using controlled divider pulse widths | — | 2002-06-11 |
| 6236703 | Fractional-N divider using a delta-sigma modulator | — | 2001-05-22 |
| 5781044 | Delta-sigma fractional-N frequency synthesizer and frequency discriminator suitable for use therein | Miles A. Copeland | 1998-07-14 |
| 4965531 | Frequency synthesizers having dividing ratio controlled by sigma-delta modulator | — | 1990-10-23 |