H03K 5/1252
Suppression or limitation of noise or interference
Official title: Suppression or limitation of noise or interference (specially adapted for transmission systems H04B15/00, H04L25/08)
H03K5/1252 (Suppression or limitation of noise or interference) appears on 1,046 US grants and 830 published applications in this corpus.
Search patents in H03K- Granted patents
- 1,046
- Published applications
- 830
- Assignees
- 509
- Inventors
- 1,938
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 9 | 0 |
| 1980 | 10 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 14 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 12 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 19 | 0 |
| 1999 | 11 | 0 |
| 2000 | 15 | 0 |
| 2001 | 20 | 2 |
| 2002 | 26 | 17 |
| 2003 | 27 | 23 |
| 2004 | 17 | 28 |
| 2005 | 17 | 40 |
| 2006 | 25 | 30 |
| 2007 | 36 | 22 |
| 2008 | 22 | 34 |
| 2009 | 24 | 30 |
| 2010 | 50 | 30 |
| 2011 | 27 | 18 |
| 2012 | 15 | 16 |
| 2013 | 24 | 33 |
| 2014 | 34 | 25 |
| 2015 | 26 | 30 |
| 2016 | 27 | 22 |
| 2017 | 37 | 24 |
| 2018 | 24 | 36 |
| 2019 | 49 | 41 |
| 2020 | 37 | 25 |
| 2021 | 26 | 34 |
| 2022 | 53 | 49 |
| 2023 | 51 | 43 |
| 2024 | 34 | 84 |
| 2025 | 60 | 49 |
| 2026 | 41 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric filtering circuitry for filtering ripples of an input signal8 Sep 2026US 12,732,172 B2ams International AG
- Signal transmission device and signal transmission system1 Sep 2026US 12,726,187 B2Hitachi Astemo, Ltd.
- Clock stretching circuit for minimum operating voltage improvement25 Aug 2026US 12,719,462 B2NVIDIA Corporation
- Radio-frequency circuit18 Aug 2026US 12,712,539 B2Murata Manufacturing Co., Ltd.
- Temperature and voltage insensitive crosstalk cancellation11 Aug 2026US 12,705,197 B2Intel Corporation
- Optimized noise suppresion for enhanced signal processing1 Oct 2026US 2026/0303075 A1Avago Technologies International Sales Pte. Limited
- Clock transmission device and operation method thereof17 Sep 2026US 2026/0280538 A1Macronix International Co., Ltd.
- Time interleaving circuit having glitch mitigation17 Sep 2026US 2026/0280539 A1STMicroelectronics International N. V.
- Dc component extraction apparatus, dc component extraction method, and demodulation apparatus13 Aug 2026US 2026/0238198 A1Kabushiki Kaisha Toshiba
- Radiation-hardened circuit having a feedback structure and semiconductor device including the same13 Aug 2026US 2026/0238211 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
Most cited
By later US patents
- Signal isolators using micro-transformers151US 7,075,329 B2Analog Devices, Inc. · 2006
- Cache updating method and apparatus144US 7,181,572 B2Silverbrook Research Pty Ltd · 2007
- Digital phase lock loop79US 6,826,247 B1STMicroelectronics S.r. l. · 2004
- Tamper resistant shadow memory76US 7,188,282 B2Silverbrook Research Pty Ltd · 2007
- Methods and apparatus for a terminated fail-safe circuit69US 6,320,406 B1Texas Instruments Incorporated · 2001