H03M 3/39
Structural details of delta-sigma modulators
Official title: {Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators (of digital delta-sigma modulators H03M7/3004)}
H03M3/39 (Structural details of delta-sigma modulators) appears on 2,065 US grants and 1,563 published applications in this corpus.
Search patents in H03M- Granted patents
- 2,065
- Published applications
- 1,563
- Assignees
- 607
- Inventors
- 2,626
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 13 | 0 |
| 1990 | 6 | 0 |
| 1991 | 21 | 0 |
| 1992 | 18 | 0 |
| 1993 | 21 | 0 |
| 1994 | 18 | 0 |
| 1995 | 17 | 0 |
| 1996 | 18 | 0 |
| 1997 | 16 | 0 |
| 1998 | 33 | 0 |
| 1999 | 22 | 0 |
| 2000 | 27 | 0 |
| 2001 | 39 | 6 |
| 2002 | 50 | 37 |
| 2003 | 40 | 34 |
| 2004 | 52 | 36 |
| 2005 | 65 | 60 |
| 2006 | 68 | 58 |
| 2007 | 62 | 64 |
| 2008 | 77 | 75 |
| 2009 | 75 | 64 |
| 2010 | 74 | 71 |
| 2011 | 82 | 69 |
| 2012 | 49 | 66 |
| 2013 | 67 | 55 |
| 2014 | 82 | 64 |
| 2015 | 89 | 65 |
| 2016 | 80 | 76 |
| 2017 | 105 | 66 |
| 2018 | 79 | 56 |
| 2019 | 89 | 98 |
| 2020 | 113 | 79 |
| 2021 | 84 | 66 |
| 2022 | 66 | 71 |
| 2023 | 77 | 79 |
| 2024 | 71 | 69 |
| 2025 | 51 | 44 |
| 2026 | 30 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03M 3/412Characterised by the number of quantisers and their type and resolution1,578
- H03M 3/436Characterised by the order of the loop filter1,146
- H03M 3/402Arrangements specific to bandpass modulators233
- H03M 3/392Arrangements for selecting among plural operation modes151
- H03M 3/40Arrangements for handling quadrature signals73
Recent patents
- Digital temperature sensor, corresponding device and method22 Sep 2026US 12,742,688 B2STMicroelectronics International N. V.
- SAB based loop filter with cross-coupled structure and ADC including the same15 Sep 2026US 12,738,956 B2Samsung Electronics Co., Ltd.
- Delta-sigma modulators with downsampled digital integrators25 Aug 2026US 12,719,495 B2NXP B. V.
- High gain detector techniques for low bandwidth low noise phase-locked loops18 Aug 2026US 12,712,551 B2Texas Instruments Incorporated
- Data sensing circuit with parallel digital filter processing18 Aug 2026US 12,712,558 B2Sigmasense, LLC.
- Quantized amplification with reduced number of passband modulators10 Sep 2026US 2026/0269846 A1QDAComm LLC
- Current-mode analog-to-digital converter systems, devices and methods for multi-sensing20 Aug 2026US 2026/0246479 A1Cypress Semiconductor Corporation
- Adc with noise-shaping sar and digitization of quantization error13 Aug 2026US 2026/0238216 A1
- A/d converter13 Aug 2026US 2026/0238222 A1Sony Semiconductor Solutions Corporation
- Flat spot suppression in sigma delta converters13 Aug 2026US 2026/0238223 A1Cypress Semiconductor Corporation
Most cited
By later US patents
- CMOS image sensor with pixel level A/D conversion381US 5,461,425 AStanford University · 1995
- Method and apparatus for multiplexed oversampled analog to digital modulation228US 5,248,971 A1993
- On-focal-plane analog-to-digital conversion for current-mode imaging devices221US 5,886,659 ACalifornia Institute of Technology · 1999
- Multi-loop .SIGMA. .DELTA. analog to digital converter153US 5,982,315 AQUALCOMM Incorporated · 1999
- Method and arrangement for a sigma delta converter for bandpass signals146US 4,857,928 AMotorola, Inc. · 1989