H03M 3/02
Delta modulation, i.e. one-bit differential modulation
Official title: Delta modulation, i.e. one-bit differential modulation {(H03M3/30 takes precedence)}
H03M3/02 (Delta modulation, i.e. one-bit differential modulation) appears on 193 US grants and 85 published applications in this corpus.
Search patents in H03M- Granted patents
- 193
- Published applications
- 85
- Assignees
- 119
- Inventors
- 283
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 5 |
| 2009 | 3 | 3 |
| 2010 | 2 | 1 |
| 2011 | 0 | 1 |
| 2012 | 4 | 1 |
| 2013 | 3 | 8 |
| 2014 | 12 | 6 |
| 2015 | 5 | 4 |
| 2016 | 2 | 1 |
| 2017 | 5 | 9 |
| 2018 | 11 | 8 |
| 2019 | 10 | 9 |
| 2020 | 10 | 4 |
| 2021 | 4 | 4 |
| 2022 | 1 | 4 |
| 2023 | 4 | 3 |
| 2024 | 6 | 2 |
| 2025 | 1 | 4 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sample-and-hold circuit and analog-to-digital converter circuit including the same6 Oct 2026US 12,756,404 B2Samsung Electronics Co., Ltd.
- Delta-sigma modulation apparatus, delta-sigma modulation method and recording medium14 Jul 2026US 12,683,628 B2NEC Corporation
- Electrocardiogram sensing and processing17 Feb 2026US 12,551,155 B1Arrowhead Center, Inc.
- Loop delay compensation in a delta-sigma modulator13 Jan 2026US 12,525,989 B2Texas Instruments Incorporated
- System and method for lightweight in-field compression of seismic data4 Nov 2025US 12,463,657 B2King Fahd University of Petroleum and Minerals
- Delta-sigma analog-to-digital converter and battery monitor device16 Jul 2026US 2026/0205138 A1Denso Corporation
- A/d conversion device and battery monitoring integrated circuit device2 Jul 2026US 2026/0189240 A1Denso Corporation
- Reference-less level-crossing adc with a bump-based adaptive-bias comparator16 Apr 2026US 2026/0106628 A1
- Delta-sigma analog-to-digital converter and battery impedance measurement device5 Feb 2026US 2026/0039310 A1Denso Corporation
- Method and apparatus for stochastic analog to digital conversion10 Jul 2025US 2025/0226837 A1
Most cited
By later US patents
- Digital data converter166US 5,155,743 ANuance DesignWorks, Inc. · 1992
- Multi-mode signal processing99US 5,745,523 AEricsson Inc. · 1998
- A-D encoder and D-A decoder system94US 4,700,362 ADolby Laboratories Licensing Corporation · 1987
- Quadrature modulator with integrated distributed RC filters90US 5,530,722 AEricsson GE Mobile Communications Inc. · 1996
- Notch filter noise rejection system in a cardiac control device83US 5,188,117 ATelectronics Pacing Systems, Inc. · 1993