H04B 1/001
Channel filtering, i.e. selecting a frequency channel within the sdr system
Official title: {Channel filtering, i.e. selecting a frequency channel within the SDR system (multiplexing of multicarrier modulation signals being represented by different frequencies H04L5/06; multiplexing of multicarrier modulation signals H04L5/023)}
H04B1/001 (Channel filtering, i.e. selecting a frequency channel within the sdr system) appears on 176 US grants and 163 published applications in this corpus.
Search patents in H04B- Granted patents
- 176
- Published applications
- 163
- Assignees
- 103
- Inventors
- 402
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 3 |
| 2004 | 2 | 5 |
| 2005 | 3 | 5 |
| 2006 | 3 | 4 |
| 2007 | 1 | 5 |
| 2008 | 1 | 4 |
| 2009 | 5 | 3 |
| 2010 | 4 | 8 |
| 2011 | 5 | 4 |
| 2012 | 9 | 12 |
| 2013 | 13 | 16 |
| 2014 | 13 | 10 |
| 2015 | 11 | 13 |
| 2016 | 12 | 9 |
| 2017 | 12 | 6 |
| 2018 | 4 | 11 |
| 2019 | 13 | 5 |
| 2020 | 5 | 7 |
| 2021 | 9 | 9 |
| 2022 | 8 | 6 |
| 2023 | 4 | 6 |
| 2024 | 5 | 6 |
| 2025 | 3 | 1 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and wireless device for performing control channel selection within a dynamic frequency selection (DFS) avoidance system1 Sep 2026US 12,726,948 B1Amazon Technologies, Inc.
- Phase keeping method to mitigate temperature related phase bias changes in duty cycled array28 Jul 2026US 12,695,468 B2L3Harris Technologies, Inc.
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- Versatile AAS receiver26 Aug 2025US 12,401,411 B2Telefonaktiebolaget LM Ericsson (publ)
- Separable, intelligible, single channel voice communication18 Mar 2025US 12,255,671 B2International Business Machines Corporation
- Radio frequency circuit7 May 2026US 2026/0128751 A1Murata Manufacturing Co., Ltd.
- Transmitter with local oscillator feedthrough (loft) and in-phase and quadrature mismatch (iqm) compensation30 Apr 2026US 2026/0121666 A1Cypress Semiconductor Corporation
- 5g over coaxial node systems and methods5 Mar 2026US 2026/0066925 A1Charter Communications Operating, LLC
- Phase keeping method to mitigate temperature related phase bias changes in duty cycled array22 Jan 2026US 2026/0025155 A1L3Harris Technologies, Inc.
- Radio frequency circuit14 Aug 2025US 2025/0260423 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Wideband communication intercept and direction finding device using hyperchannelization299US 6,898,235 B1Argon ST, Inc. · 2005
- Digitally programmable multifunction radio system architecture271US 6,072,994 ANorthrop Grumman Corporation · 2000
- Multi-channel digital transceiver and method218US 5,579,341 AMotorola, Inc. · 1996
- Multi-channel digital transceiver and method169US 5,818,883 AMotorola, Inc. · 1998
- Multi-channel transceiver having an adaptive antenna array and method168US 5,748,683 AMotorola, Inc. · 1998