H04L 25/03
Shaping networks in transmitter or receiver
Official title: Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
H04L25/03 (Shaping networks in transmitter or receiver) appears on 14,986 US grants and 13,925 published applications in this corpus.
Search patents in H04L- Granted patents
- 14,986
- Published applications
- 13,925
- Assignees
- 2,250
- Inventors
- 16,792
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 21 | 0 |
| 1978 | 8 | 0 |
| 1979 | 8 | 0 |
| 1980 | 10 | 0 |
| 1981 | 19 | 0 |
| 1982 | 15 | 0 |
| 1983 | 17 | 0 |
| 1984 | 19 | 0 |
| 1985 | 16 | 0 |
| 1986 | 25 | 0 |
| 1987 | 19 | 0 |
| 1988 | 23 | 0 |
| 1989 | 35 | 0 |
| 1990 | 19 | 0 |
| 1991 | 44 | 0 |
| 1992 | 50 | 0 |
| 1993 | 70 | 0 |
| 1994 | 74 | 0 |
| 1995 | 69 | 0 |
| 1996 | 83 | 0 |
| 1997 | 93 | 0 |
| 1998 | 128 | 0 |
| 1999 | 142 | 0 |
| 2000 | 135 | 0 |
| 2001 | 195 | 80 |
| 2002 | 192 | 297 |
| 2003 | 207 | 353 |
| 2004 | 225 | 454 |
| 2005 | 228 | 472 |
| 2006 | 401 | 507 |
| 2007 | 383 | 647 |
| 2008 | 419 | 668 |
| 2009 | 454 | 742 |
| 2010 | 609 | 757 |
| 2011 | 597 | 674 |
| 2012 | 835 | 757 |
| 2013 | 934 | 736 |
| 2014 | 1098 | 754 |
| 2015 | 1050 | 741 |
| 2016 | 781 | 600 |
| 2017 | 752 | 659 |
| 2018 | 688 | 587 |
| 2019 | 738 | 592 |
| 2020 | 675 | 538 |
| 2021 | 539 | 491 |
| 2022 | 454 | 428 |
| 2023 | 415 | 434 |
| 2024 | 382 | 407 |
| 2025 | 350 | 336 |
| 2026 | 227 | 214 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 25/03006Arrangements for removing intersymbol interference11,285
- H04L 25/03828Arrangements for spectral shaping2,210
- H04L 25/03878Line equalisers1,673
- H04L 25/03891Spatial equalizers1,395
- H04L 25/03993Noise whitening129
- H04L 25/03987Equalisation for sparse channels82
- H04L 25/0398Restoration of channel reciprocity44
Recent patents
- Data correction and phase optimization in high-speed receivers6 Oct 2026US 12,754,237 B2Diodes Incorporated
- Digital predistortion with hybrid basis-function-based actuator and neural network6 Oct 2026US 12,756,599 B2Analog Devices, Inc.
- Transmitter equalization parameter evaluation method and apparatus6 Oct 2026US 12,756,600 B2Huawei Technologies Co., Ltd.
- Cancellation pulse generation with reduced waveform storage to reduce crests in transmission signals6 Oct 2026US 12,756,601 B2Texas Instruments Incorporated
- Integrated circuit for performing link equalization6 Oct 2026US 12,756,602 B2Samsung Electronics Co., Ltd.
- A mimo equaliser circuit for successive interference cancellation and method therefor8 Oct 2026US 2026/0312634 A1Accelercomm Limited
- Calibration circuit, calibration method, external signal interface chip, and electronic apparatus8 Oct 2026US 2026/0312739 A1Innogrit Technologies Co., Ltd.
- Reduced bandwidth pulse shaping schemes for spectral efficiency8 Oct 2026US 2026/0312756 A1QUALCOMM Incorporated
- Signal generator system8 Oct 2026US 2026/0312845 A1
- Dynamic scrambling for wired communications between systems8 Oct 2026US 2026/0312846 A1Micron Technology, Inc.
Most cited
By later US patents
- Method and apparatus for a RADSL transceiver warm start activation procedure with precoding938US 5,852,630 AGlobespan Semiconductor, Inc. · 1998
- Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system793US 6,473,467 B1QUALCOMM Incorporated · 2002
- Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum691US 5,282,222 A1994
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999
- Spatio-temporal processing for communication580US 6,144,711 ACisco Systems, Inc. · 2000