H04B 2201/707
Relating to direct sequence modulation
Official title: relating to direct sequence modulation
H04B2201/707 (Relating to direct sequence modulation) appears on 3,683 US grants and 3,295 published applications in this corpus.
Search patents in H04B- Granted patents
- 3,683
- Published applications
- 3,295
- Assignees
- 762
- Inventors
- 4,236
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 10 | 0 |
| 1996 | 23 | 0 |
| 1997 | 36 | 0 |
| 1998 | 58 | 0 |
| 1999 | 83 | 0 |
| 2000 | 85 | 0 |
| 2001 | 94 | 73 |
| 2002 | 114 | 323 |
| 2003 | 166 | 284 |
| 2004 | 204 | 277 |
| 2005 | 162 | 256 |
| 2006 | 282 | 237 |
| 2007 | 206 | 216 |
| 2008 | 199 | 227 |
| 2009 | 198 | 232 |
| 2010 | 242 | 198 |
| 2011 | 251 | 144 |
| 2012 | 198 | 103 |
| 2013 | 191 | 85 |
| 2014 | 146 | 94 |
| 2015 | 144 | 94 |
| 2016 | 106 | 84 |
| 2017 | 68 | 42 |
| 2018 | 61 | 66 |
| 2019 | 83 | 58 |
| 2020 | 65 | 58 |
| 2021 | 60 | 37 |
| 2022 | 25 | 29 |
| 2023 | 42 | 35 |
| 2024 | 23 | 22 |
| 2025 | 19 | 15 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 2201/70701Featuring pilot assisted receptionIndexing code937
- H04B 2201/70707Efficiency-related aspectsIndexing code812
- H04B 2201/7097Direct sequence modulation interferenceIndexing code771
- H04B 2201/70703Using multiple or variable ratesIndexing code545
- H04B 2201/70715With application-specific featuresIndexing code509
- H04B 2201/70702Intercell-related aspectsIndexing code464
- H04B 2201/70706With means for reducing the peak-to-average power ratioIndexing code266
- H04B 2201/7073Direct sequence modulation synchronisationIndexing code78
Recent patents
- Efficient and consistent wireless downlink channel configuration21 Jul 2026US 12,690,047 B2Wi-LAN, Inc.
- Method and apparatus for signal interference processing7 Jul 2026US 12,677,307 B2ISCO International, LLC
- Correlating network and physical layer activities23 Jun 2026US 12,665,624 B2ISCO International, LLC
- Modernized global navigation satellite system (GNSS) receivers and commercially viable consumer grade GNSS receivers26 May 2026US 12,638,595 B2oneNav, Inc.
- Modernized global navigation satellite system (GNSS) receivers and commercially viable consumer grade GNSS receivers28 Apr 2026US 12,613,346 B2oneNav, Inc.
- Method and apparatus for signal interference processing24 Sep 2026US 2026/0292861 A1ISCO International, LLC
- Systems and methods for enhanced multipath differentiation27 Aug 2026US 2026/0251806 A1TrustPoint, Inc.
- Correlating network & physical layer activities20 Aug 2026US 2026/0246488 A1ISCO International, LLC
- Generating a composite signal with code division multiplexing (cdm) and time division multiplexing (tdm) pilots9 Jul 2026US 2026/0197028 A1Intellectual Ventures Holding 81 LLC
- Radio frequency (rf) communications system having rf nodes that determine a despreading sequence and phase and timing offsets for frequency agility5 Mar 2026US 2026/0067139 A1L3Harris Technologies, Inc.
Most cited
By later US patents
- System and method for generating signal waveforms in a CDMA cellular telephone system1,721US 5,103,459 AQUALCOMM Incorporated · 1992
- Spread spectrum multiple access communication system using satellite or terrestrial repeaters1,545US 4,901,307 AQUALCOMM Incorporated · 1990
- Method and system for providing a soft handoff in communications in a CDMA cellular telephone system852US 5,101,501 AQUALCOMM Incorporated · 1992
- Diversity receiver in a CDMA cellular telephone system825US 5,109,390 AQUALCOMM Incorporated · 1992
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999