H03M 3/344
By filtering other than the noise-shaping inherent to delta-sigma modulators
Official title: {by filtering other than the noise-shaping inherent to delta-sigma modulators, e.g. anti-aliasing}
H03M3/344 (By filtering other than the noise-shaping inherent to delta-sigma modulators) appears on 172 US grants and 151 published applications in this corpus.
Search patents in H03M- Granted patents
- 172
- Published applications
- 151
- Assignees
- 97
- Inventors
- 311
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 5 |
| 2005 | 9 | 4 |
| 2006 | 5 | 4 |
| 2007 | 4 | 5 |
| 2008 | 3 | 5 |
| 2009 | 3 | 3 |
| 2010 | 6 | 5 |
| 2011 | 6 | 9 |
| 2012 | 5 | 7 |
| 2013 | 8 | 10 |
| 2014 | 7 | 3 |
| 2015 | 8 | 7 |
| 2016 | 7 | 6 |
| 2017 | 14 | 10 |
| 2018 | 7 | 5 |
| 2019 | 6 | 8 |
| 2020 | 13 | 11 |
| 2021 | 11 | 2 |
| 2022 | 5 | 5 |
| 2023 | 6 | 12 |
| 2024 | 9 | 10 |
| 2025 | 11 | 4 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for sigma-delta modulator quantization noise cancellation10 Mar 2026US 12,574,047 B2Ciena Corporation
- Device and method for time skew calibration of multi channel ADC16 Dec 2025US 12,500,592 B2STMicroelectronics International N. V.
- Continuous-time data converter with digital multi-stage noise shaping subconverter2 Dec 2025US 12,489,457 B2Infineon Technologies AG
- Integrated circuit2 Dec 2025US 12,489,458 B2Wacom Co., Ltd.
- Analog-to-digital converter and thermopile array11 Nov 2025US 12,467,793 B2Csmc Technologies Fab2 Co., Ltd.
- Delta-sigma sensing device8 Oct 2026US 2026/0312600 A1Consejo Superior De Investigaciones Cientificas (Csic)
- Methods and apparatus to notch filter using parallel filter circuitry30 Jul 2026US 2026/0221981 A1
- Chopper circuit for multipath chopper amplifier and corresponding method of chopping16 Jul 2026US 2026/0205075 A1NXP B. V.
- Ctdsm with high tolerance to clock frequency variation18 Jun 2026US 2026/0172047 A1
- Device and method for time skew calibration of multi channel adc19 Mar 2026US 2026/0081611 A1STMicroelectronics International N. V.
Most cited
By later US patents
- Delta-sigma ADC with multi-stage decimation filter and gain compensation filter122US 5,646,621 AAdvanced Micro Devices, Inc. · 1997
- Noise cancellation circuit in a quadrature downconverter94US 6,243,430 B1QUALCOMM Incorporated · 2001
- Method and apparatus for oversampled, noise-shaping, mixed-signal processing73US 5,777,512 ATripath Technology, Inc. · 1998
- Read-out photodiodes using sigma-delta oversampled analog-to-digital converters66US 5,142,286 AGeneral Electric Company · 1992
- Sampling system50US 6,181,740 B2Kabushiki Kaisha Toshiba · 2001