H04L 2027/0028
At passband only
Official title: {at passband only}
H04L2027/0028 (At passband only) appears on 288 US grants and 171 published applications in this corpus.
Search patents in H04L- Granted patents
- 288
- Published applications
- 171
- Assignees
- 149
- Inventors
- 479
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 15 | 0 |
| 2001 | 13 | 7 |
| 2002 | 14 | 19 |
| 2003 | 18 | 20 |
| 2004 | 19 | 18 |
| 2005 | 14 | 18 |
| 2006 | 19 | 14 |
| 2007 | 14 | 13 |
| 2008 | 12 | 6 |
| 2009 | 13 | 14 |
| 2010 | 21 | 2 |
| 2011 | 11 | 6 |
| 2012 | 9 | 7 |
| 2013 | 10 | 3 |
| 2014 | 5 | 3 |
| 2015 | 4 | 4 |
| 2016 | 5 | 5 |
| 2017 | 1 | 2 |
| 2018 | 5 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multiple radio frequency impairment estimation2 Dec 2025US 12,489,537 B2Vestel Elektronik Sanayi Ve Ticaret A.S.
- Method and apparatus for transmitting PLCP frame in wireless local area network system3 Jun 2025US 12,323,283 B2Telefonaktiebolaget LM Ericsson (publ)
- Method and apparatus for transmitting PLCP frame in wireless local area network system13 Feb 2024US 11,902,068 B2Telefonaktiebolaget LM Ericsson (publ)
- Method and device for estimating carrier frequency offset, and computer readable storage medium2 May 2023US 11,641,295 B1Shanghai Eastsoft Microelectronics Co., Ltd.
- Frequency offset estimation and compensation for high performance wireless communications in substation automation1 Nov 2022US 11,489,710 B2Hitachi Energy Switzerland AG
- Method and Apparatus for Transmitting PLCP Frame in Wireless Local Area Network System11 Jul 2024US 2024/0235909 A9Telefonaktiebolaget LM Ericsson (publ)
- Method and Apparatus for Transmitting PLCP Frame in Wireless Local Area Network System25 Apr 2024US 2024/0137255 A1Telefonaktiebolaget LM Ericsson (publ)
- Multiple Radio Frequency Impairment Estimation11 Jan 2024US 2024/0014914 A1Vestel Elektronik Sanayi Ve Ticaret A.S.
- Method and Device for Estimating Carrier Frequency Offset, and Computer Readable Storage Medium13 Apr 2023US 2023/0111713 A1Shanghai Eastsoft Microelectronics Co., Ltd.
- Method and apparatus for transmitting plcp frame in wireless local area network system27 Oct 2022US 2022/0345341 A1Wi-Fi One, LLC
Most cited
By later US patents
- Signal processing system169US 5,793,818 ADiscovision Associates · 1998
- Carrier recovery circuit for offset QPSK demodulators161US 4,871,975 ANEC Corporation · 1989
- Subharmonic quadrature sampling receiver and design123US 5,937,013 AThe Hong Kong University of Science and Technology · 1999
- Radio frequency control for communications systems118US 6,463,266 B1Broadcom Corporation · 2002
- Method and circuit arrangement for processing received signal117US 5,812,608 ANokia Technology GmbH · 1998