H04J 13/0044
Ovsf [orthogonal variable spreading factor]
Official title: {OVSF [orthogonal variable spreading factor]}
H04J13/0044 (Ovsf [orthogonal variable spreading factor]) appears on 217 US grants and 231 published applications in this corpus.
Search patents in H04J- Granted patents
- 217
- Published applications
- 231
- Assignees
- 101
- Inventors
- 450
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 6 |
| 2002 | 6 | 19 |
| 2003 | 10 | 27 |
| 2004 | 10 | 24 |
| 2005 | 15 | 25 |
| 2006 | 24 | 11 |
| 2007 | 15 | 23 |
| 2008 | 12 | 7 |
| 2009 | 16 | 13 |
| 2010 | 15 | 13 |
| 2011 | 16 | 9 |
| 2012 | 14 | 11 |
| 2013 | 17 | 6 |
| 2014 | 12 | 3 |
| 2015 | 3 | 3 |
| 2016 | 3 | 5 |
| 2017 | 3 | 5 |
| 2018 | 3 | 5 |
| 2019 | 4 | 6 |
| 2020 | 2 | 4 |
| 2021 | 5 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 3 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Spread spectrum modulation over an asymmetric ethernet link12 Aug 2025US 12,388,488 B1Marvell Asia Pte Ltd
- Adaptive spreading factor matching for single channel LoRa receivers31 Dec 2024US 12,184,325 B2Saya Life, Inc.
- Communication system with increased throughput21 May 2024US 11,990,984 B2Airbus Defence and Space GmbH
- Ultra-low power data transmission method and apparatus9 Jan 2024US 11,870,550 B2Electronics and Telecommunications Research Institute
- Method and system for broadcasting data in wireless network1 Aug 2023US 11,716,176 B2Carrier Corporation
- Uplink transmission with orthogonal cover codes25 Sep 2025US 2025/0301464 A1QUALCOMM Incorporated
- Methods of narrowband physical random access channel preamble transmissions with orthogonal cover code multiplexing21 Aug 2025US 2025/0267712 A1Sharp Kabushiki Kaisha
- Adaptive spreading factor matching for single channel lora receivers28 Sep 2023US 2023/0308129 A1Saya Life, Inc.
- Communication system with increased throughput2 Jun 2022US 2022/0173803 A1Airbus Defence and Space GmbH
- Ultra-low power data transmission method and apparatus30 Dec 2021US 2021/0409142 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
- Random access in a mobile telecommunications system157US 6,381,229 B1Telefonaktielbolaget L M Ericsson (publ) · 2002
- High data rate CDMA wireless communication system133US 6,396,804 B2QUALCOMM Incorporated · 2002
- Channel assignment apparatus and method for a common packet channel in a WCDMA mobile communication system129US 6,859,445 B1Samsung Electronics Co., Ltd. · 2005
- Apparatus and method for assigning a common packet channel in a CDMA communication system107US 6,963,540 B2Samsung Electronics Co., Ltd. · 2005
- Data transmission within a spread-spectrum communication system96US 6,233,231 B1Motorola, Inc. · 2001