H04L 25/38
Synchronous or start-stop systems
Official title: Synchronous or start-stop systems, e.g. for Baudot code
H04L25/38 (Synchronous or start-stop systems) appears on 5,105 US grants and 3,797 published applications in this corpus.
Search patents in H04L- Granted patents
- 5,105
- Published applications
- 3,797
- Assignees
- 1,435
- Inventors
- 7,573
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 34 | 0 |
| 1978 | 43 | 0 |
| 1979 | 10 | 0 |
| 1980 | 31 | 0 |
| 1981 | 27 | 0 |
| 1982 | 29 | 0 |
| 1983 | 28 | 0 |
| 1984 | 28 | 0 |
| 1985 | 49 | 0 |
| 1986 | 37 | 0 |
| 1987 | 39 | 0 |
| 1988 | 39 | 0 |
| 1989 | 47 | 0 |
| 1990 | 24 | 0 |
| 1991 | 33 | 0 |
| 1992 | 43 | 0 |
| 1993 | 70 | 0 |
| 1994 | 46 | 0 |
| 1995 | 60 | 0 |
| 1996 | 60 | 0 |
| 1997 | 74 | 0 |
| 1998 | 95 | 0 |
| 1999 | 93 | 0 |
| 2000 | 90 | 0 |
| 2001 | 118 | 36 |
| 2002 | 119 | 116 |
| 2003 | 114 | 156 |
| 2004 | 113 | 183 |
| 2005 | 120 | 186 |
| 2006 | 157 | 140 |
| 2007 | 162 | 128 |
| 2008 | 138 | 171 |
| 2009 | 122 | 181 |
| 2010 | 165 | 161 |
| 2011 | 130 | 106 |
| 2012 | 169 | 102 |
| 2013 | 157 | 134 |
| 2014 | 164 | 139 |
| 2015 | 207 | 185 |
| 2016 | 205 | 182 |
| 2017 | 202 | 156 |
| 2018 | 160 | 148 |
| 2019 | 202 | 211 |
| 2020 | 192 | 143 |
| 2021 | 175 | 154 |
| 2022 | 151 | 156 |
| 2023 | 147 | 156 |
| 2024 | 137 | 142 |
| 2025 | 141 | 129 |
| 2026 | 83 | 96 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Digital predistortion with hybrid basis-function-based actuator and neural network6 Oct 2026US 12,756,599 B2Analog Devices, Inc.
- Phase management circuit for high-speed ADC receivers and methods thereof6 Oct 2026US 12,756,603 B2Samsung Electronics Co., Ltd.
- Semiconductor device using multi-level signaling and coding method thereof22 Sep 2026US 12,744,620 B2Samsung Electronics Co., Ltd.
- Receiver receiving data signal of multi-level and electronic system including the same22 Sep 2026US 12,744,692 B2Samsung Electronics Co., Ltd.
- Transceiver circuit15 Sep 2026US 12,739,156 B2NXP USA, Inc.
- Gnss receiver with carrier phase tracking, method for performing a carrier phase tracking therein and computer program product1 Oct 2026US 2026/0299139 A1STMicroelectronics International N. V.
- Transmitter and receiver for transmitting and receiving multi-level signal and system including the same1 Oct 2026US 2026/0303304 A1Seoul National University R&Db Foundation
- Systems and Methods for Communicating using Time Shift Signaling1 Oct 2026US 2026/0303418 A1TeraSignal LLC
- Extended symbol decoding1 Oct 2026US 2026/0303419 A1Microchip Technology Incorporated
- High-speed serial interface1 Oct 2026US 2026/0303435 A1MaxLinear, Inc.
Most cited
By later US patents
- Synchronous network for digital media streams2,236US 6,611,537 B1Centillium Communications, Inc. · 2003
- Universal lighting network methods and systems1,007US 6,548,967 B1Color Kinetics Incorporated · 2003
- Serial communication protocol for medical device579US 9,226,766 B2Ethicon Endo-Surgery, Inc. · 2016
- Method and system for communicating information in a digital signal540US 8,599,957 B2EMS Technologies, Inc. · 2013
- Method and system for communicating information in a digital signal503US 8,750,445 B2EMS Technologies, Inc. · 2014