H03M 3/30
Delta-sigma modulation
Official title: {Delta-sigma modulation}
H03M3/30 (Delta-sigma modulation) appears on 3,671 US grants and 2,804 published applications in this corpus.
Search patents in H03M- Granted patents
- 3,671
- Published applications
- 2,804
- Assignees
- 887
- Inventors
- 4,378
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 16 | 0 |
| 1990 | 16 | 0 |
| 1991 | 32 | 0 |
| 1992 | 27 | 0 |
| 1993 | 34 | 0 |
| 1994 | 31 | 0 |
| 1995 | 27 | 0 |
| 1996 | 32 | 0 |
| 1997 | 40 | 0 |
| 1998 | 56 | 0 |
| 1999 | 43 | 0 |
| 2000 | 59 | 0 |
| 2001 | 71 | 12 |
| 2002 | 102 | 78 |
| 2003 | 89 | 60 |
| 2004 | 86 | 83 |
| 2005 | 115 | 103 |
| 2006 | 111 | 91 |
| 2007 | 118 | 113 |
| 2008 | 121 | 121 |
| 2009 | 113 | 101 |
| 2010 | 117 | 107 |
| 2011 | 124 | 109 |
| 2012 | 85 | 113 |
| 2013 | 115 | 111 |
| 2014 | 145 | 133 |
| 2015 | 172 | 133 |
| 2016 | 182 | 140 |
| 2017 | 177 | 121 |
| 2018 | 143 | 99 |
| 2019 | 150 | 159 |
| 2020 | 203 | 147 |
| 2021 | 143 | 121 |
| 2022 | 130 | 137 |
| 2023 | 133 | 138 |
| 2024 | 119 | 110 |
| 2025 | 106 | 96 |
| 2026 | 64 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03M 3/39Structural details of delta-sigma modulators2,065
- H03M 3/458Analogue/digital converters using delta-sigma modulation as an intermediate step1,847
- H03M 3/322Continuously compensating for, or preventing, undesired influence of physical parameters1,325
- H03M 3/50Digital/analogue converters using delta-sigma modulation as an intermediate step768
- H03M 3/38Calibration248
- H03M 3/32With special provisions or arrangements for power saving113
- H03M 3/378Testing54
Recent patents
- Successive-approximation analog-to-digital converter29 Sep 2026US 12,750,065 B2MegaChips Corporation
- Digital temperature sensor, corresponding device and method22 Sep 2026US 12,742,688 B2STMicroelectronics International N. V.
- Three-state buffer circuit22 Sep 2026US 12,744,543 B2Telefonaktiebolaget LM Ericsson (publ)
- Synchronization circuit and method15 Sep 2026US 12,738,946 B2Analog Devices International Unlimited Company
- SAB based loop filter with cross-coupled structure and ADC including the same15 Sep 2026US 12,738,956 B2Samsung Electronics Co., Ltd.
- Phase-Locked Loop Circuit8 Oct 2026US 2026/0312593 A1Novatek Microelectronics Corp.
- Delta-sigma sensing device8 Oct 2026US 2026/0312600 A1Consejo Superior De Investigaciones Cientificas (Csic)
- Multi-rate sigma-delta adc8 Oct 2026US 2026/0312601 A1Semtech Corporation
- Filtering architecture with minimized transients17 Sep 2026US 2026/0281617 A1Infineon Technologies AG
- Quantized amplification with reduced number of passband modulators10 Sep 2026US 2026/0269846 A1QDAComm LLC
Most cited
By later US patents
- Touch controller with improved analog front end830US 8,031,094 B2Apple Inc. · 2011
- CMOS image sensor with pixel level A/D conversion381US 5,461,425 AStanford University · 1995
- Apparatus and method for encoding a multi-channel audio signal314US 8,577,045 B2Motorola Mobility LLC · 2013
- 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