H03M 3/452
With weighted feedforward summation, i.e. with feedforward paths from more than one
Official title: {with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input}
H03M3/452 (With weighted feedforward summation, i.e. with feedforward paths from more than one) appears on 217 US grants and 147 published applications in this corpus.
Search patents in H03M- Granted patents
- 217
- Published applications
- 147
- Assignees
- 117
- Inventors
- 364
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 2 |
| 2002 | 10 | 3 |
| 2003 | 6 | 2 |
| 2004 | 5 | 3 |
| 2005 | 5 | 3 |
| 2006 | 5 | 4 |
| 2007 | 10 | 8 |
| 2008 | 13 | 15 |
| 2009 | 8 | 8 |
| 2010 | 9 | 4 |
| 2011 | 7 | 8 |
| 2012 | 7 | 9 |
| 2013 | 11 | 10 |
| 2014 | 9 | 4 |
| 2015 | 7 | 3 |
| 2016 | 5 | 3 |
| 2017 | 13 | 5 |
| 2018 | 8 | 3 |
| 2019 | 13 | 14 |
| 2020 | 8 | 5 |
| 2021 | 4 | 4 |
| 2022 | 7 | 8 |
| 2023 | 7 | 10 |
| 2024 | 7 | 2 |
| 2025 | 5 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor113US 5,392,042 AMartin Marietta Corporation · 1995
- Low-delay signal processing based on highly oversampled digital processing100US 7,365,669 B1Cirrus Logic, Inc. · 2008
- Delta-sigma modulator with oscillation detect and reset circuit93US 5,012,244 ACrystal Semiconductor Corporation · 1991
- Digital feedforward sigma-delta modulator in analog-to-digital converter and modulation method thereof93US 8,120,518 B2Koren Advanced Institute of Science and Technology · 2012
- Integrator reset mechanism86US 6,795,006 B1Zarlink Semiconductor Inc. · 2004