H04L 1/242
By comparing a transmitted test signal with a locally generated replica
Official title: {by comparing a transmitted test signal with a locally generated replica}
H04L1/242 (By comparing a transmitted test signal with a locally generated replica) appears on 875 US grants and 775 published applications in this corpus.
Search patents in H04L- Granted patents
- 875
- Published applications
- 775
- Assignees
- 361
- Inventors
- 1,496
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 20 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 22 | 10 |
| 2002 | 28 | 48 |
| 2003 | 23 | 45 |
| 2004 | 22 | 55 |
| 2005 | 32 | 31 |
| 2006 | 43 | 34 |
| 2007 | 32 | 40 |
| 2008 | 27 | 31 |
| 2009 | 32 | 25 |
| 2010 | 44 | 26 |
| 2011 | 18 | 26 |
| 2012 | 23 | 12 |
| 2013 | 20 | 20 |
| 2014 | 36 | 30 |
| 2015 | 39 | 37 |
| 2016 | 26 | 62 |
| 2017 | 30 | 28 |
| 2018 | 32 | 35 |
| 2019 | 44 | 33 |
| 2020 | 43 | 34 |
| 2021 | 30 | 29 |
| 2022 | 31 | 29 |
| 2023 | 24 | 19 |
| 2024 | 26 | 15 |
| 2025 | 16 | 13 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Data center traffic analytics synchronization30 Jun 2026US 12,670,003 B2Cisco Technology, Inc.
- Correlating network and physical layer activities23 Jun 2026US 12,665,624 B2ISCO International, LLC
- System and method for network policy simulation16 Jun 2026US 12,657,049 B2Cisco Technology, Inc.
- Round trip time (RTT) measurement based upon sequence number7 Apr 2026US 12,596,568 B2Cisco Technology, Inc.
- Method of verifying integrity of data from a device under test7 Apr 2026US 12,596,848 B2Siemens Industry Software Inc.
- Methods, systems, and computer readable media for detecting retry window invocation for testing link level retry (llr)17 Sep 2026US 2026/0280777 A1Keysight Technologies, Inc.
- Correlating network & physical layer activities20 Aug 2026US 2026/0246488 A1ISCO International, LLC
- Monitoring the performance of a model based on machine learning for reporting channel state information6 Aug 2026US 2026/0230142 A1InterDigital Patent Holdings, Inc.
- Internet storage6 Aug 2026US 2026/0230237 A1Duplicent, LLC
- Cycle counting circuit18 Jun 2026US 2026/0172155 A1
Most cited
By later US patents
- Source synchronous link integrity validation423US 6,965,648 B1Sun Microsystems, Inc. · 2005
- Method and apparatus for testing a packet-based network308US 5,477,531 AHewlett-Packard Company · 1995
- Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration242US 6,862,440 B2Intel Corporation · 2005
- Method and apparatus for characterizing a signal path carrying an operational signal178US 7,250,772 B2University of Utah Research Foundation · 2007
- Transceiver for extending a CSMA/CD network for wireless communication159US 5,917,629 AInternational Business Machines Corporation · 1999