H03M 7/3004
Digital delta-sigma modulation
Official title: {Digital delta-sigma modulation}
H03M7/3004 (Digital delta-sigma modulation) appears on 579 US grants and 393 published applications in this corpus.
Search patents in H03M- Granted patents
- 579
- Published applications
- 393
- Assignees
- 267
- Inventors
- 906
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 19 | 4 |
| 2002 | 15 | 12 |
| 2003 | 19 | 12 |
| 2004 | 22 | 36 |
| 2005 | 28 | 38 |
| 2006 | 36 | 23 |
| 2007 | 39 | 31 |
| 2008 | 34 | 14 |
| 2009 | 22 | 16 |
| 2010 | 19 | 19 |
| 2011 | 20 | 15 |
| 2012 | 9 | 10 |
| 2013 | 15 | 14 |
| 2014 | 14 | 13 |
| 2015 | 20 | 19 |
| 2016 | 21 | 11 |
| 2017 | 19 | 11 |
| 2018 | 11 | 9 |
| 2019 | 19 | 24 |
| 2020 | 34 | 14 |
| 2021 | 17 | 9 |
| 2022 | 14 | 10 |
| 2023 | 9 | 8 |
| 2024 | 4 | 9 |
| 2025 | 9 | 4 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid fractional phase-locked loop19 May 2026US 12,633,932 B2Texas Instruments Incorporated
- Encoding method and encoding apparatus based on polar code19 May 2026US 12,633,944 B2Huawei Technologies Co., Ltd.
- System and method of digital to analog conversion with improved linearity and accuracy24 Mar 2026US 12,587,211 B2NXP B. V.
- Digital-to-time converter mismatch compensation17 Mar 2026US 12,580,582 B2Texas Instruments Incorporated
- Delta sigma modulation circuit, digital transmission circuit, and digital transmitter17 Mar 2026US 12,580,584 B2Mitsubishi Electric Corporation
- A method and a fault locator system for determining a location of a fault in a transmission line1 Oct 2026US 2026/0298998 A1Hitachi Energy Ltd
- Digital-to-time converter mismatch compensation16 Jul 2026US 2026/0205137 A1Texas Instruments Incorporated
- Processor, floating-point operation unit, and operation method2 Jul 2026US 2026/0186778 A1
- Hybrid fractional phase-locked loop2 Apr 2026US 2026/0095186 A1Texas Instruments Incorporated
- Coefficient feathering using delta sigma modulation2 Apr 2026US 2026/0095195 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Digital data converter166US 5,155,743 ANuance DesignWorks, Inc. · 1992
- System and method for encoding an input data stream by utilizing a predictive, look-ahead feature152US 6,501,404 B2Agilent Technologies, Inc. · 2002
- Pulse modulated digital to analog converter (DAC)127US 6,459,398 B1D.S.P.C. Technologies Ltd. · 2002
- Low-delay signal processing based on highly oversampled digital processing100US 7,365,669 B1Cirrus Logic, Inc. · 2008
- Method for compression of high resolution seismic data78US 5,757,852 AWestern Atlas International, Inc. · 1998