H03M 3/494
Sampling or signal conditioning arrangements specially adapted for delta-sigma type analogue/digital conversion
Official title: {Sampling or signal conditioning arrangements specially adapted for delta-sigma type analogue/digital conversion systems}
H03M3/494 (Sampling or signal conditioning arrangements specially adapted for delta-sigma type analogue/digital conversion) appears on 315 US grants and 281 published applications in this corpus.
Search patents in H03M- Granted patents
- 315
- Published applications
- 281
- Assignees
- 159
- Inventors
- 598
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 2 |
| 2002 | 6 | 8 |
| 2003 | 7 | 2 |
| 2004 | 6 | 6 |
| 2005 | 8 | 4 |
| 2006 | 5 | 9 |
| 2007 | 11 | 5 |
| 2008 | 5 | 5 |
| 2009 | 5 | 3 |
| 2010 | 3 | 2 |
| 2011 | 7 | 5 |
| 2012 | 2 | 4 |
| 2013 | 6 | 8 |
| 2014 | 8 | 10 |
| 2015 | 13 | 9 |
| 2016 | 14 | 20 |
| 2017 | 20 | 16 |
| 2018 | 20 | 16 |
| 2019 | 21 | 25 |
| 2020 | 28 | 25 |
| 2021 | 33 | 23 |
| 2022 | 21 | 14 |
| 2023 | 13 | 16 |
| 2024 | 14 | 14 |
| 2025 | 15 | 18 |
| 2026 | 14 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- DTC linearization via mismatch-noise cancellation for digital fractional-N PLLs1 Sep 2026US 12,726,212 B2The Regents of the University of California
- Delta-sigma modulators with downsampled digital integrators25 Aug 2026US 12,719,495 B2NXP B. V.
- Sensor circuit18 Aug 2026US 12,712,567 B2Infineon Technologies AG
- Multi-rate sigma-delta adc8 Oct 2026US 2026/0312601 A1Semtech Corporation
- Filtering architecture with minimized transients17 Sep 2026US 2026/0281617 A1Infineon Technologies AG
- Flat spot suppression in sigma delta converters13 Aug 2026US 2026/0238223 A1Cypress Semiconductor Corporation
- Integrator and sigma-delta analog-to-digital converter13 Aug 2026US 2026/0238224 A1Realtek Semiconductor Corp.
- Incremental delta-sigma modulator23 Jul 2026US 2026/0213766 A1Asahi Kasei Microdevices Corporation
Most cited
By later US patents
- Touch controller with improved analog front end830US 8,031,094 B2Apple Inc. · 2011
- Switched-capacitance coupling networks for differential-input amplifiers, not requiring balanced input signals77US 4,896,156 AGeneral Electric Company · 1990
- Low power current input delta-sigma ADC using injection FET reference55US 6,977,601 B1Raytheon Company · 2005
- Systems and methods for sampling in an input network of a delta-sigma modulator51US 8,907,829 B1Cirrus Logic, Inc. · 2014
- Combining continuous time and discrete time signal processing in a delta-sigma modulator50US 5,079,550 ACrystal Semiconductor Corporation · 1992