H03M 3/422
Having one quantiser only
Official title: {having one quantiser only}
H03M3/422 (Having one quantiser only) appears on 1,348 US grants and 1,020 published applications in this corpus.
Search patents in H03M- Granted patents
- 1,348
- Published applications
- 1,020
- Assignees
- 471
- Inventors
- 1,841
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 15 | 0 |
| 1992 | 10 | 0 |
| 1993 | 17 | 0 |
| 1994 | 11 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 9 | 0 |
| 1998 | 29 | 0 |
| 1999 | 16 | 0 |
| 2000 | 20 | 0 |
| 2001 | 28 | 6 |
| 2002 | 41 | 19 |
| 2003 | 31 | 24 |
| 2004 | 34 | 26 |
| 2005 | 46 | 43 |
| 2006 | 44 | 34 |
| 2007 | 45 | 54 |
| 2008 | 55 | 53 |
| 2009 | 53 | 44 |
| 2010 | 51 | 55 |
| 2011 | 63 | 51 |
| 2012 | 35 | 46 |
| 2013 | 37 | 30 |
| 2014 | 43 | 34 |
| 2015 | 55 | 34 |
| 2016 | 43 | 42 |
| 2017 | 59 | 41 |
| 2018 | 48 | 35 |
| 2019 | 51 | 68 |
| 2020 | 75 | 50 |
| 2021 | 54 | 44 |
| 2022 | 42 | 40 |
| 2023 | 41 | 52 |
| 2024 | 48 | 40 |
| 2025 | 35 | 26 |
| 2026 | 13 | 29 |
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 a class D amplifier18 Aug 2026US 12,712,566 B1Renesas Design Netherlands B.V.
- Apparatus for generating a digital signal dependent on a current slope4 Aug 2026US 12,700,789 B2Renesas Design (UK) Limited
- Second order audio continuous time delta sigma modulator with resonator16 Jun 2026US 12,658,936 B2Skyworks Solutions, Inc.
- Measurement system with correction for temperature-based converter feedback error2 Jun 2026US 12,647,124 B2Cirrus Logic, Inc.
- Quantized amplification with reduced number of passband modulators10 Sep 2026US 2026/0269846 A1QDAComm LLC
- Current-mode analog-to-digital converter systems, devices and methods for multi-sensing20 Aug 2026US 2026/0246479 A1Cypress Semiconductor Corporation
- Adc with noise-shaping sar and digitization of quantization error13 Aug 2026US 2026/0238216 A1
- 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.
Most cited
By later US patents
- CMOS image sensor with pixel level A/D conversion381US 5,461,425 AStanford University · 1995
- Method and apparatus for multiplexed oversampled analog to digital modulation228US 5,248,971 A1993
- Method and arrangement for a sigma delta converter for bandpass signals146US 4,857,928 AMotorola, Inc. · 1989
- Combined angle demodulator and digitizer141US 5,369,404 AThe Regents of the University of California · 1994
- Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor113US 5,392,042 AMartin Marietta Corporation · 1995