H04B 7/0678
Using different spreading codes between antennas
Official title: {using different spreading codes between antennas (code allocation H04J13/16)}
H04B7/0678 (Using different spreading codes between antennas) appears on 222 US grants and 226 published applications in this corpus.
Search patents in H04B- Granted patents
- 222
- Published applications
- 226
- Assignees
- 93
- Inventors
- 391
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 9 |
| 2003 | 3 | 12 |
| 2004 | 3 | 0 |
| 2005 | 4 | 10 |
| 2006 | 9 | 16 |
| 2007 | 6 | 12 |
| 2008 | 5 | 15 |
| 2009 | 9 | 8 |
| 2010 | 10 | 11 |
| 2011 | 19 | 17 |
| 2012 | 15 | 10 |
| 2013 | 14 | 17 |
| 2014 | 19 | 11 |
| 2015 | 21 | 15 |
| 2016 | 13 | 12 |
| 2017 | 13 | 10 |
| 2018 | 5 | 7 |
| 2019 | 13 | 6 |
| 2020 | 9 | 10 |
| 2021 | 3 | 4 |
| 2022 | 8 | 4 |
| 2023 | 4 | 3 |
| 2024 | 2 | 2 |
| 2025 | 3 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coexistence schemes for wireless communication and sensing23 Dec 2025US 12,506,527 B2Zte Corporation
- Method and apparatus for multi-access uplink transmission of different waveforms4 Nov 2025US 12,463,700 B2Indian Institute of Technology Kharagpur
- Detecting the number of transmit antennas in a base station25 Feb 2025US 12,238,745 B2BlackBerry Limited
- Method for quasi-synchronous code division multiple access based on synchronization clock by piloting3 Sep 2024US 12,081,315 B2Beijing Xinxing Weitong Technology Co., Ltd.
- Transmission of information in a wireless communication system7 May 2024US 11,979,214 B2Malikie Innovations Limited
- Methods and apparatus to support two codewords for ul mimo30 Jul 2026US 2026/0223197 A1Apple Inc.
- Communication control apparatus, communication apparatus, communication system, storage medium, and communication control method18 Sep 2025US 2025/0293791 A1NEC Corporation
- Method and apparatus for multi-access uplink transmission of different waveforms5 Jun 2025US 2025/0183974 A1Indian Institute of Technology Kharagpur
- Multi-user multiple input multiple output (mu-mimo) restriction with enhanced demodulation reference signal (dmrs) configuration types for pdsch in new radio (nr)15 Aug 2024US 2024/0275640 A1Apple Inc.
- Coexistence schemes for wireless communication and sensing25 Jul 2024US 2024/0250734 A1Zte Corporation
Most cited
By later US patents
- Diversity transmission modes for MIMO OFDM communication systems173US 7,095,709 B2QUALCOMM Incorporated · 2006
- Efficient shadow reduction antenna system for spread spectrum156US 6,128,330 ALinex Technology Corporation · 2000
- Method and apparatus for transmitting signals in a communication system147US 6,038,263 AMotorola, Inc. · 2000
- Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques141US 6,317,411 B1Motorola, Inc. · 2001
- Broadcast transmission with spatial spreading in a multi-antenna communication system113US 7,302,009 B2QUALCOMM Incorporated · 2007