H04L 25/03878
Line equalisers
Official title: {Line equalisers; line build-out devices}
H04L25/03878 (Line equalisers) appears on 1,673 US grants and 1,472 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,673
- Published applications
- 1,472
- Assignees
- 398
- Inventors
- 2,391
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 19 | 6 |
| 2002 | 21 | 23 |
| 2003 | 26 | 24 |
| 2004 | 13 | 38 |
| 2005 | 14 | 26 |
| 2006 | 27 | 43 |
| 2007 | 26 | 40 |
| 2008 | 34 | 48 |
| 2009 | 39 | 51 |
| 2010 | 55 | 43 |
| 2011 | 49 | 38 |
| 2012 | 58 | 57 |
| 2013 | 88 | 77 |
| 2014 | 115 | 106 |
| 2015 | 136 | 81 |
| 2016 | 94 | 84 |
| 2017 | 113 | 85 |
| 2018 | 81 | 56 |
| 2019 | 82 | 68 |
| 2020 | 96 | 73 |
| 2021 | 96 | 83 |
| 2022 | 103 | 91 |
| 2023 | 85 | 73 |
| 2024 | 77 | 58 |
| 2025 | 51 | 53 |
| 2026 | 40 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Integrated circuit for performing link equalization6 Oct 2026US 12,756,602 B2Samsung Electronics Co., Ltd.
- Equalizer and transmitter including the same29 Sep 2026US 12,750,258 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Equalizer with all-pass filter delay22 Sep 2026US 12,744,695 B2Cisco Technology, Inc.
- On-chip virtual network analyzer, method, computer device, and storage medium15 Sep 2026US 12,739,155 B1Photonic Technologies (Shanghai) Co., Ltd.
- Passive equalizer with front-end level-shifter (FELS)8 Sep 2026US 12,732,400 B2NVIDIA Corporation
- Calibration circuit, calibration method, external signal interface chip, and electronic apparatus8 Oct 2026US 2026/0312739 A1Innogrit Technologies Co., Ltd.
- Equalizer circuit and calibration method therefor1 Oct 2026US 2026/0303416 A1Novatek Microelectronics Corp.
- Integrated circuit for performing link equalization17 Sep 2026US 2026/0280944 A1Samsung Electronics Co., Ltd.
- System and operating method thereof17 Sep 2026US 2026/0280945 A1SK hynix Inc.
- On-chip virtual network analyzer, method, computer device, and storage medium17 Sep 2026US 2026/0280946 A1Photonic Technologies (Shanghai) Co., Ltd.
Most cited
By later US patents
- Low-latency equalization in multi-level, multi-line communication systems264US 7,269,212 B1Rambus Inc. · 2007
- Method and apparatus for receiving high speed signals with low latency243US 6,396,329 B1Rambus Inc. · 2002
- Phase interpolator device and method223US 6,509,773 B2Broadcom Corporation · 2003
- Method and device for disturbance suppression in a signal195US 6,522,707 B1Siemens Aktiengesellschaft · 2003
- Analog receive equalizer for digital-subscriber-line communications system165US 6,226,322 B1Texas Instruments Incorporated · 2001