H04B 10/1123
Bidirectional transmission
Official title: {Bidirectional transmission}
H04B10/1123 (Bidirectional transmission) appears on 689 US grants and 688 published applications in this corpus.
Search patents in H04B- Granted patents
- 689
- Published applications
- 688
- Assignees
- 322
- Inventors
- 1,294
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 5 |
| 2002 | 8 | 59 |
| 2003 | 13 | 30 |
| 2004 | 23 | 47 |
| 2005 | 21 | 24 |
| 2006 | 21 | 11 |
| 2007 | 20 | 17 |
| 2008 | 13 | 8 |
| 2009 | 11 | 14 |
| 2010 | 8 | 11 |
| 2011 | 10 | 8 |
| 2012 | 12 | 8 |
| 2013 | 4 | 8 |
| 2014 | 14 | 16 |
| 2015 | 14 | 19 |
| 2016 | 24 | 19 |
| 2017 | 26 | 18 |
| 2018 | 29 | 29 |
| 2019 | 48 | 28 |
| 2020 | 49 | 39 |
| 2021 | 51 | 54 |
| 2022 | 50 | 52 |
| 2023 | 52 | 54 |
| 2024 | 40 | 53 |
| 2025 | 47 | 31 |
| 2026 | 26 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Monostatic free-space optical communication system29 Sep 2026US 12,750,137 B2Aalyria Technologies, Inc.
- Optical space communication management device, optical space communication system, and optical space communication management method1 Sep 2026US 12,726,271 B2National Institute of Information and Communications Technology
- Drone pre-mapping18 Aug 2026US 12,710,287 B2Dell Products L. P.
- Free-space optical communication apparatus and method for controlling free-space optical communication apparatus30 Jun 2026US 12,671,496 B2NEC Corporation
- Optical wireless communication beam steering with assistance information16 Jun 2026US 12,659,032 B2QUALCOMM Incorporated
- Systems and methods for remote detection and measurement of optical system misalignments in free-space optical communication terminals17 Sep 2026US 2026/0280696 A1Astrolight UAB
- An optical wireless communication device17 Sep 2026US 2026/0280704 A1Signify Holding B. V.
- Systems and methods for transmit and receive aperture alignment in optical ground stations using beam direction feedback17 Sep 2026US 2026/0280705 A1Astrolight UAB
- Optical communication service13 Aug 2026US 2026/0238342 A1Aerocine Ventures, Inc.
- Two-dimensional wavelength scanning transceiver with integrated natural intelligence for optimized optical wireless communications6 Aug 2026US 2026/0230181 A1AI Atlas Inc.
Most cited
By later US patents
- Apparatus for exchanging data between a central station and a plurality of wireless remote stations on a time divided commnication channel457US 5,677,909 ASpectrix Corporation · 1997
- Dual mode communications device and methods for use therewith426US 10,062,970 B1AT&T Intellectual Property I, L. P. · 2018
- Hybrid picocell communication system198US 6,323,980 B1Air Fiber, Inc. · 2001
- Hybrid universal broadband telecommunications using small radio cells interconnected by free-space optical links172US 6,314,163 B1The Regents of the University of California · 2001
- Hybrid electro-optic cable for free space laser antennas168US 6,931,183 B2Dominion Lasercom, Inc. · 2005