H03M 3/502
Details of the final digital/analogue conversion following the digital delta-sigma modulation
Official title: {Details of the final digital/analogue conversion following the digital delta-sigma modulation}
H03M3/502 (Details of the final digital/analogue conversion following the digital delta-sigma modulation) appears on 422 US grants and 295 published applications in this corpus.
Search patents in H03M- Granted patents
- 422
- Published applications
- 295
- Assignees
- 194
- Inventors
- 654
- Latest grant
- 25 Aug 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
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| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
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| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
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| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 2 |
| 2002 | 22 | 12 |
| 2003 | 13 | 13 |
| 2004 | 21 | 24 |
| 2005 | 23 | 16 |
| 2006 | 10 | 14 |
| 2007 | 21 | 21 |
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| 2017 | 13 | 9 |
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| 2019 | 16 | 20 |
| 2020 | 18 | 10 |
| 2021 | 15 | 8 |
| 2022 | 9 | 8 |
| 2023 | 6 | 5 |
| 2024 | 3 | 3 |
| 2025 | 4 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Delta-sigma modulators with downsampled digital integrators25 Aug 2026US 12,719,495 B2NXP B. V.
- Sigma-delta modulator and method for operating a sigma-delta modulator28 Jul 2026US 12,695,464 B2Robert Bosch GmbH
- Delta sigma modulation circuit, digital transmission circuit, and digital transmitter17 Mar 2026US 12,580,584 B2Mitsubishi Electric Corporation
- Fluxgate current transducer11 Nov 2025US 12,467,957 B2LEM International SA
- ADC for charge output sensors15 Jul 2025US 12,362,763 B2Skyworks Solutions, Inc.
- Delta-sigma sensing device8 Oct 2026US 2026/0312600 A1Consejo Superior De Investigaciones Cientificas (Csic)
- Noise-shaping sar-nested dsm for wide input signal range and input impedance boosting for bio-signal recording13 Aug 2026US 2026/0238225 A1Korea Advanced Institute of Science and Technology
- Delta-sigma modulators with downsampled digital integrators14 May 2026US 2026/0135569 A1NXP B. V.
- Charge output sensors and related devices and methods8 Jan 2026US 2026/0012190 A1Skyworks Solutions, Inc.
- Compensation of analog-to-digital converter (adc) gain error18 Dec 2025US 2025/0385681 A1
Most cited
By later US patents
- Analogue and digital convertors using pulse edge modulators with non-linearity error correction212US 5,548,286 AB & W Loudspeakers Limited · 1996
- Sigma-delta digital-to-analog converter with reduced noise163US 5,323,157 AMotorola, Inc. · 1994
- Analogue and digital convertors146US 6,232,899 B1Cirrus Logic, Inc. · 2001
- Current-to-voltage converter with controllable gain, and signal processing circuit comprising such a converter138US 6,545,620 B2Koninklijke Philips Electronics N. V. · 2003
- Integral switched capacitor FIR filter/digital-to-analog converter for sigma-delta encoded digital audio127US 5,012,245 AAT&T Bell Laboratories · 1991