H04L 27/3494
Using non - square modulating pulses
Official title: {using non - square modulating pulses, e.g. using raised cosine pulses; Partial response QAM, i.e. with partial response pulse shaping (QAM over partial response channels H04L25/497)}
H04L27/3494 (Using non - square modulating pulses) appears on 69 US grants and 65 published applications in this corpus.
Search patents in H04L- Granted patents
- 69
- Published applications
- 65
- Assignees
- 36
- Inventors
- 136
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
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| 1985 | 1 | 0 |
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| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
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| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 2 |
| 2014 | 3 | 1 |
| 2015 | 2 | 4 |
| 2016 | 2 | 10 |
| 2017 | 6 | 4 |
| 2018 | 5 | 2 |
| 2019 | 5 | 11 |
| 2020 | 9 | 4 |
| 2021 | 6 | 3 |
| 2022 | 5 | 5 |
| 2023 | 5 | 4 |
| 2024 | 4 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Devices, systems, and methods employing polynomial symbol waveforms10 Dec 2024US 12,166,622 B2Astrapi Corporation
- Artificial intelligence for optimizing 5G/6G wireless network performance19 Nov 2024US 12,149,985 B2
- Probabilistic shaping QAM dynamic equalization and digital signal processing method13 Aug 2024US 12,063,138 B2Soochow University
- Communication system using shape-shifted sinusoidal waveforms16 Jan 2024US 11,876,659 B2TeraWave, LLC
- Optical communication method and communication apparatus14 May 2026US 2026/0135619 A1Huawei Technologies Co., Ltd.
- Energy-based arithmetic coding for probabilistic amplitude shaping26 Mar 2026US 2026/0089046 A1QUALCOMM Incorporated
- Reference signal configuration method and device, and storage medium22 Aug 2024US 2024/0283686 A1Zte Corporation
- Techniques for waveform compression7 Mar 2024US 2024/0080233 A1QUALCOMM Incorporated
- Devices, Systems, And Methods Employing Polynomial Symbol Waveforms7 Dec 2023US 2023/0396483 A1Astrapi Corporation
Most cited
By later US patents
- Spectrally efficient digital modulation method and apparatus116US 4,737,969 AMotorola, Inc. · 1988
- Method and apparatus for transmitting and receiving digital data over a bandpass channel53US 5,838,727 ASchlumberger Technology Corporation · 1998
- Method and apparatus for coding a binary signal42US 4,534,040 AAT&T Information Systems Inc. · 1985
- Signal transmission method38US 4,882,737 ABBC Brown, Boveri & Company, Limited · 1989
- Constrained-envelope digital-communications transmission system and method therefor29US 6,104,761 ASicom, Inc. · 2000