H04L 27/30
Wherein each code element is represented by a combination of frequencies
Official title: wherein each code element is represented by a combination of frequencies
H04L27/30 (Wherein each code element is represented by a combination of frequencies) appears on 118 US grants and 80 published applications in this corpus.
Search patents in H04L- Granted patents
- 118
- Published applications
- 80
- Assignees
- 80
- Inventors
- 249
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 6 | 5 |
| 2003 | 5 | 2 |
| 2004 | 6 | 7 |
| 2005 | 0 | 2 |
| 2006 | 5 | 2 |
| 2007 | 1 | 3 |
| 2008 | 4 | 2 |
| 2009 | 3 | 3 |
| 2010 | 2 | 0 |
| 2011 | 3 | 4 |
| 2012 | 1 | 2 |
| 2013 | 3 | 3 |
| 2014 | 3 | 1 |
| 2015 | 4 | 3 |
| 2016 | 5 | 3 |
| 2017 | 2 | 2 |
| 2018 | 1 | 5 |
| 2019 | 4 | 2 |
| 2020 | 2 | 3 |
| 2021 | 0 | 5 |
| 2022 | 5 | 3 |
| 2023 | 4 | 3 |
| 2024 | 1 | 2 |
| 2025 | 3 | 6 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transceiver system and control method with improved pre-distortion effect16 Dec 2025US 12,500,807 B2Realtek Semiconductor Corp.
- Encoding method, decoding method, encoding apparatus, and decoding apparatus2 Dec 2025US 12,489,664 B2Huawei Technologies Co., Ltd.
- OFDM-based method and device for spreading and transmitting compressed data16 Sep 2025US 12,418,449 B2Samsung Electronics Co., Ltd.
- Methods and apparatus for unified codebooks for orthogonal sequence transmission16 Jan 2024US 11,876,654 B2QUALCOMM Incorporated
- Sequence based uplink control channel coexistence5 Dec 2023US 11,838,083 B2QUALCOMM Incorporated
- Reception method, transmission method, reception device, transmission device, and communication system23 Jul 2026US 2026/0213991 A1Socionext Inc.
- Overland synchronization signal (ss) block structures and cell detection procedures21 May 2026US 2026/0142858 A1Lenovo (United States) Inc.
- Frequency modulated continuous wave-based synchronization signal block and low power synchronization signal21 May 2026US 2026/0143422 A1QUALCOMM Incorporated
- Communication method, network device, terminal device, and communication system22 Jan 2026US 2026/0025303 A1Huawei Technologies Co., Ltd.
- Methods, architectures, apparatuses and systems for waveform generation of wake-up radio (wur) signals15 Jan 2026US 2026/0019947 A1
Most cited
By later US patents
- Composite shift keying communication system221US 4,577,333 AGridComm Inc. · 1986
- Apparatus and methods for including codes in audio signals202US 6,421,445 B1Arbitron Inc. · 2002
- Superposition of data over voice112US 6,996,213 B1Sun Microsystems, Inc. · 2006
- Low-rate speech coder for non-speech data transmission84US 6,345,251 B12002
- CPE alert signal detector and caller identification detector using peak detection66US 6,480,589 B1Samsung Electronics Co., Ltd. · 2002