H04K 1/10
Secret communication: by using two signals transmitted simultaneously or successively
Official title: by using two signals transmitted simultaneously or successively
H04K1/10 (Secret communication: by using two signals transmitted simultaneously or successively) appears on 112 US grants and 107 published applications in this corpus.
Search patents in H04K- Granted patents
- 112
- Published applications
- 107
- Assignees
- 82
- Inventors
- 217
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 2 | 8 |
| 2007 | 1 | 1 |
| 2008 | 4 | 5 |
| 2009 | 1 | 3 |
| 2010 | 4 | 5 |
| 2011 | 1 | 5 |
| 2012 | 8 | 5 |
| 2013 | 7 | 2 |
| 2014 | 10 | 10 |
| 2015 | 10 | 7 |
| 2016 | 10 | 7 |
| 2017 | 8 | 6 |
| 2018 | 5 | 3 |
| 2019 | 5 | 4 |
| 2020 | 7 | 10 |
| 2021 | 5 | 2 |
| 2022 | 5 | 4 |
| 2023 | 3 | 3 |
| 2024 | 2 | 4 |
| 2025 | 6 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Interference management for array puncturing21 Apr 2026US 12,609,750 B2QUALCOMM Incorporated
- Systems and methods for presenting secondary content24 Feb 2026US 12,562,834 B1Amazon Technologies, Inc.
- Secure communication protocol8 Jul 2025US 12,355,572 B2Rockwell Collins, Inc.
- Information scrambling systems and methods17 Jun 2025US 12,334,980 B2Raytheon Company
- Multi-transmission artificial noise (AN) cancellation17 Jun 2025US 12,335,032 B2QUALCOMM Incorporated
- Covert communication technique for intelligent reflecting surface-assisted wireless networks with a friendly jammer5 Feb 2026US 2026/0039410 A1U.S. Government as represented by the Secretary of the Army
- Multi-transmission artificial noise (an) cancellation11 Sep 2025US 2025/0286645 A1QUALCOMM Incorporated
- Artificial noise (an) cancelation4 Sep 2025US 2025/0279842 A1QUALCOMM Incorporated
- Interference management for array puncturing21 Aug 2025US 2025/0266894 A1QUALCOMM Incorporated
- Light-based data encoding and/or decoding device7 Aug 2025US 2025/0253957 A1
Most cited
By later US patents
- Secure open-air communication system utilizing multi-channel decoyed transmission229US 7,848,517 B2AT&T Intellectual Property II, L. P. · 2010
- Multiple access coding for radio communications159US 5,353,352 AEricsson GE Mobile Communications Inc. · 1994
- Multiple signal transmission method and system, particularly for television124US 4,410,911 ATelease, Inc. · 1983
- LED light dongle communication system71US 8,687,965 B2Federal Law Enforcement Development Services, Inc. · 2014
- Method and system for increasing data rate in a mobile terminal using spatial multiplexing for DVB-H communication68US 7,653,415 B2Broadcom Corporation · 2010