H04L 12/43
With synchronous transmission
Official title: with synchronous transmission, e.g. time division multiplex [TDM], slotted rings
H04L12/43 (With synchronous transmission) appears on 316 US grants and 199 published applications in this corpus.
Search patents in H04L- Granted patents
- 316
- Published applications
- 199
- Assignees
- 151
- Inventors
- 574
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 6 |
| 2002 | 10 | 10 |
| 2003 | 9 | 15 |
| 2004 | 9 | 12 |
| 2005 | 10 | 30 |
| 2006 | 16 | 10 |
| 2007 | 3 | 13 |
| 2008 | 11 | 7 |
| 2009 | 14 | 10 |
| 2010 | 28 | 11 |
| 2011 | 11 | 8 |
| 2012 | 9 | 8 |
| 2013 | 9 | 5 |
| 2014 | 11 | 5 |
| 2015 | 6 | 9 |
| 2016 | 6 | 1 |
| 2017 | 5 | 5 |
| 2018 | 2 | 6 |
| 2019 | 7 | 4 |
| 2020 | 8 | 3 |
| 2021 | 2 | 3 |
| 2022 | 4 | 5 |
| 2023 | 2 | 5 |
| 2024 | 2 | 1 |
| 2025 | 6 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Data transmission method and apparatus, network device, and storage medium10 Mar 2026US 12,574,135 B2Zte Corporation
- Multiple-port phase change estimation reference signals for discrete Fourier transform-spread orthogonal frequency-division multiplexing (DFT-S-OFDM) transmissions14 Oct 2025US 12,445,336 B1QUALCOMM Incorporated
- Photovoltaic system and communication method therefor15 Jul 2025US 12,362,571 B2Sungrow Power Supply Co., Ltd.
- Intelligent illumination device24 Jun 2025US RE50,468 E1Lutron Technology Company LLC
- Robotic surgical system and method for communicating synchronous and asynchronous information to and from nodes of a robotic arm13 May 2025US 12,295,689 B2Verb Surgical Inc.
- Topology network and management method and a master node device14 May 2026US 2026/0135766 A13Peak Inc.
- Avionic ring communication network, and related civil aircraft30 Apr 2026US 2026/0121888 A1
- Data communication system, data communication method, relay device, relay method, and program20 Nov 2025US 2025/0358145 A1Nippon Telegraph and Telephone Corporation
- Terminal, radio communication method, and base station14 Aug 2025US 2025/0260538 A1Ntt Docomo, Inc.
- Reference signal resource selection based beam prediction7 Aug 2025US 2025/0253916 A1QUALCOMM Incorporated
Most cited
By later US patents
- Systems and methods for multiple mode voice and data communications using intelligenty bridged TDM and packet buses and methods for performing telephony and data functions using the same342US 6,154,465 AVertical Networks, Inc. · 2000
- Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses and methods for performing telephony and data functions using the same235US 6,445,682 B1Vertical Networks, Inc. · 2002
- Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses and methods for implementing language capabilities using the same186US 6,366,578 B1Verticle Networks, Inc. · 2002
- Fault tolerant network utilizing bi-directional point-to-point communications links between nodes184US 8,179,787 B2SMSC Holding S.A.R.L. · 2012
- Frame synchronized ring system and method162US 5,886,992 AValtion Teknillinen Tutkimuskeskus · 1999