H03M 3/446
By a particular choice of poles or zeroes in the z-plane
Official title: {by a particular choice of poles or zeroes in the z-plane, e.g. by positioning zeroes outside the unit circle, i.e. causing the modulator to operate in a chaotic regime}
H03M3/446 (By a particular choice of poles or zeroes in the z-plane) appears on 76 US grants and 50 published applications in this corpus.
Search patents in H03M- Granted patents
- 76
- Published applications
- 50
- Assignees
- 49
- Inventors
- 125
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 6 | 3 |
| 2003 | 4 | 1 |
| 2004 | 2 | 2 |
| 2005 | 4 | 6 |
| 2006 | 4 | 3 |
| 2007 | 6 | 4 |
| 2008 | 6 | 7 |
| 2009 | 3 | 4 |
| 2010 | 2 | 3 |
| 2011 | 4 | 1 |
| 2012 | 1 | 3 |
| 2013 | 4 | 3 |
| 2014 | 3 | 0 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Loop delay compensation in a delta-sigma modulator13 Jan 2026US 12,525,989 B2Texas Instruments Incorporated
- Loop delay compensation in a delta-sigma modulator12 Mar 2024US 11,929,765 B2Texas Instruments Incorporated
- Loop delay compensation in a delta-sigma modulator7 Sep 2021US 11,115,044 B2Texas Instruments Incorporated
- Suppression of noise of delta-sigma modulators17 Nov 2020US 10,840,940 B2Cirrus Logic, Inc.
- Loop delay compensation in a delta-sigma modulator28 Jul 2020US 10,727,859 B1Texas Instruments Incorporated
- Loop delay compensation in a delta-sigma modulator23 May 2024US 2024/0171195 A1Texas Instruments Incorporated
- Loop delay compensation in a delta-sigma modulator11 Nov 2021US 2021/0351783 A1Texas Instruments Incorporated
- Loop delay compensation in a delta-sigma modulator1 Apr 2021US 2021/0099186 A1Texas Instruments Incorporated
- Suppression of noise of delta-sigma modulators25 Jun 2020US 2020/0204193 A1Cirrus Logic International Semiconductor Ltd.
- Semiconductor device and operating method thereof27 Jun 2019US 2019/0199367 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Delta-sigma modulator with oscillation detect and reset circuit93US 5,012,244 ACrystal Semiconductor Corporation · 1991
- Sigma delta modulator66US 5,311,181 AAnalog Devices, Inc. · 1994
- Stabilizing mechanism for sigma-delta modulator52US 5,742,246 ANational Science Council · 1998
- Sigma delta modulator with distributed prefiltering and feedback51US 5,055,843 AAnalog Devices, Inc. · 1991
- Multiple mode analog-to-digital converter employing a single quantizer46US 6,362,762 B1HRL Laboratories, LLC · 2002