H04L 27/263
Modification of ifft/idft modulator for performance improvement
Official title: {modification of IFFT/IDFT modulator for performance improvement}
H04L27/263 (Modification of ifft/idft modulator for performance improvement) appears on 78 US grants and 89 published applications in this corpus.
Search patents in H04L- Granted patents
- 78
- Published applications
- 89
- Assignees
- 77
- Inventors
- 232
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 3 |
| 2005 | 1 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 6 |
| 2009 | 1 | 4 |
| 2010 | 9 | 0 |
| 2011 | 2 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 6 |
| 2014 | 7 | 4 |
| 2015 | 6 | 6 |
| 2016 | 1 | 6 |
| 2017 | 5 | 5 |
| 2018 | 7 | 5 |
| 2019 | 4 | 3 |
| 2020 | 5 | 3 |
| 2021 | 3 | 3 |
| 2022 | 6 | 4 |
| 2023 | 1 | 2 |
| 2024 | 3 | 4 |
| 2025 | 4 | 7 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method for disseminating scaling information and application thereof in VLSI implementation of fixed-point FFT18 Nov 2025US 12,476,727 B2Imec Vzw
- Methods and systems for digital representation of encoded communications data and simplified evaluation of precoding in systems using phase-cyclical precoding14 Oct 2025US 12,445,339 B2Wavestream Corporation
- Mobile station, base station, transmission method and receiving method15 Jul 2025US 12,363,696 B2Panasonic Intellectual Property Corporation of America
- Codebook configuration for channel state information (csi)25 Jun 2026US 2026/0180645 A1Lenovo (United States) Inc.
- Electronic device and method for fast fourier transform25 Jun 2026US 2026/0180846 A1Samsung Electronics Co., Ltd.
- Communication method and communication system28 May 2026US 2026/0149629 A1Ningbo University
- Method and apparatus for generating low power signal, terminal, and network-side device27 Nov 2025US 2025/0365672 A1Vivo Mobile Communication Co., Ltd.
- Mobile station, base station, transmission method and receiving method2 Oct 2025US 2025/0310944 A1Panasonic Intellectual Property Corporation of America
Most cited
By later US patents
- Method and apparatus for transmitting orthogonal-multi-carrier signal61US 6,747,946 B1Victor Company of Japan, Ltd. · 2004
- Orthogonal frequency division multiplex modulation apparatus and orthogonal frequency division multiplex demodulation apparatus57US 5,675,572 ASony Corporation · 1997
- Optimized FFT/IFFT module33US 7,333,422 B2Zarbana Digital Fund LLC · 2008
- Computation reduction in OFDM system using frequency domain processing27US 7,072,411 B1Cisco Technology, Inc. · 2006
- 2N-point and N-point FFT/IFFT dual mode processor17US 7,693,924 B2Electronics and Telecommunications Research Institute · 2010