H04B 3/238
Using initial training sequence
Official title: {using initial training sequence}
H04B3/238 (Using initial training sequence) appears on 172 US grants and 51 published applications in this corpus.
Search patents in H04B- Granted patents
- 172
- Published applications
- 51
- Assignees
- 107
- Inventors
- 296
- Latest grant
- 30 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 17 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 16 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 5 | 3 |
| 2007 | 0 | 2 |
| 2008 | 4 | 2 |
| 2009 | 2 | 3 |
| 2010 | 2 | 3 |
| 2011 | 2 | 2 |
| 2012 | 3 | 2 |
| 2013 | 4 | 2 |
| 2014 | 4 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 5 | 2 |
| 2019 | 2 | 5 |
| 2020 | 5 | 4 |
| 2021 | 2 | 4 |
| 2022 | 4 | 3 |
| 2023 | 5 | 0 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Full-duplex echo cancellation30 Jan 2024US 11,888,545 B1Cable Television Labories, Inc.
- Echo canceller training in full duplex networks16 Jan 2024US 11,876,753 B2ARRIS Enterprises LLC
- Method and apparatus for training a full-duplex communication link12 Dec 2023US 11,843,483 B2Marvell Asia Pte Ltd
- Machine learning based receiver performance improvement using peak reduction tones31 Oct 2023US 11,804,998 B2QUALCOMM Incorporated
- Training optimization of multiple lines in a vectored system using a prepared-to-join group13 Jun 2023US 11,677,438 B2Intel Germany GmbH & Co. KG
- Automatic training of echo canceller in upstream signal receivers on quiet subcarriers6 Mar 2025US 2025/0080163 A1Avago Technologies International Sales Pte. Limited
- Techniques for power efficient and smart echo cancellation5 Dec 2024US 2024/0405799 A1Huawei Technologies Co., Ltd.
- Echo canceller training in full duplex networks8 Dec 2022US 2022/0393848 A1ARRIS Enterprises LLC
- Method and Apparatus for Training a Full-Duplex Communication Link4 Aug 2022US 2022/0247603 A1Marvell Asia Pte Ltd
- Training Optimization of Multiple Lines in a Vectored System Using a Prepared-to-Join Group30 Jun 2022US 2022/0209819 A1Lantiq Beteiligungs-GmbH & Co. KG
Most cited
By later US patents
- Method and system for crosstalk cancellation239US 7,050,388 B2Quellan, Inc. · 2006
- Method and system for signal emulation200US 7,804,760 B2Quellan, Inc. · 2010
- Digital echo canceller96US 4,903,247 AU. S. Philips Corporation · 1990
- Echo cancelling device with frequency sub-band filtering86US 4,956,838 AEtat Francais represente par le Ministre des Postes, Telecommunications et de l'Espace (Centre National d'Etudes des Telecommunications) · 1990
- Adaptive echo canceller with sparse dynamically positioned taps85US 4,805,215 ARacal Data Communications Inc. · 1989