H04J 2013/0037
Multilevel codes
Official title: {Multilevel codes}
H04J2013/0037 (Multilevel codes) appears on 87 US grants and 52 published applications in this corpus.
Search patents in H04J- Granted patents
- 87
- Published applications
- 52
- Assignees
- 41
- Inventors
- 106
- Latest grant
- 9 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 2 |
| 2002 | 8 | 20 |
| 2003 | 5 | 3 |
| 2004 | 10 | 4 |
| 2005 | 5 | 2 |
| 2006 | 6 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 4 | 2 |
| 2010 | 2 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Signal sending method, signal receiving method, and device9 Apr 2024US 11,956,178 B2Huawei Technologies Co., Ltd.
- Systems and methods for hybrid multi-layer signal decomposition23 Jul 2019US 10,361,895 B1Huawei Technologies Co., Ltd.
- Multi-user code division multiple access communication method, and corresponding transmitter and receiver18 Jun 2019US 10,326,547 B2Zte Corporation
- Data transmission method and apparatus1 Jan 2019US 10,171,128 B2Xi'an Zhongxing New Software Co., Ltd.
- Communication receiving apparatus, signal receiving method thereof for recovering data and signal transmitting method for generating transmitting signal based on CDMA technology9 Oct 2018US 10,097,302 B2I-Shou University
- Uwb-based ppdu transmission method and apparatus26 Feb 2026US 2026/0059032 A1Huawei Technologies Co., Ltd.
- Capacity enhancement for a sidelink feedback channel29 Jan 2026US 2026/0032698 A1QUALCOMM Incorporated
- Signal sending method, signal receiving method, and device9 Jun 2022US 2022/0182209 A9Huawei Technologies Co., Ltd.
- Signal sending method, signal receiving method, and device11 Nov 2021US 2021/0351897 A1Huawei Technologies Co., Ltd.
- Systems and methods for hybrid multi-layer signal decomposition25 Jul 2019US 2019/0229966 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Multicarrier sub-layer for direct sequence channel and multiple-access coding463US 7,430,257 B1Lot 41 Acquisition Foundation, LLC · 2008
- Code division multiple access (CDMA) communication system333US 6,157,619 AInterDigital Technology Corporation · 2000
- Method and system for simultaneously broadcasting and receiving digital and analog signals179US 5,956,624 AUSA Digital Radio Partners, L.P. · 1999
- Code division multiple access (CDMA) communication system172US 5,799,010 AInterDigital Technology Corporation · 1998
- Television transmission system using spread spectrum and orthogonal frequency-division multiplex171US 5,425,050 AMassachusetts Institute of Technology · 1995