H04B 3/462
Testing group delay or phase shift
Official title: Testing group delay or phase shift, e.g. timing jitter
H04B3/462 (Testing group delay or phase shift) appears on 148 US grants and 128 published applications in this corpus.
Search patents in H04B- Granted patents
- 148
- Published applications
- 128
- Assignees
- 105
- Inventors
- 282
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 6 |
| 2006 | 1 | 5 |
| 2007 | 3 | 5 |
| 2008 | 3 | 3 |
| 2009 | 4 | 7 |
| 2010 | 6 | 3 |
| 2011 | 5 | 5 |
| 2012 | 8 | 7 |
| 2013 | 3 | 2 |
| 2014 | 5 | 9 |
| 2015 | 14 | 8 |
| 2016 | 10 | 11 |
| 2017 | 13 | 10 |
| 2018 | 9 | 9 |
| 2019 | 10 | 9 |
| 2020 | 6 | 6 |
| 2021 | 6 | 8 |
| 2022 | 8 | 0 |
| 2023 | 2 | 3 |
| 2024 | 0 | 5 |
| 2025 | 6 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wi-fi/Bluetooth antenna disconnect detection24 Feb 2026US 12,562,779 B2Cypress Semiconductor Corporation
- Photonic precision delay component for high dynamic delay range16 Dec 2025US 12,500,730 B2Ihp GmbH—Innovations for High Performance Microelectronics/Leibniz-Institut Fur Innovative Mikroelektronik
- Method, circuit arrangement, and system for identifying impedance changes in a signal line23 Sep 2025US 12,425,071 B2Robert Bosch GmbH
- Near-end crosstalk cancellation system9 Sep 2025US 12,413,261 B2Intel Corporation
- System and method for power line communication (PLC) signal data body encoding using differential phase detection3 Jun 2025US 12,323,198 B2Bendix Commercial Vehicle Systems LLC
- Signal group delay computation method and signal group delay computation system2 Oct 2025US 2025/0306168 A1Realtek Semiconductor Corp.
- Wi-fi/bluetooth antenna disconnect detection31 Jul 2025US 2025/0247128 A1Cypress Semiconductor Corporation
- Apparatus and method for detecting group delay information and apparatus and method for transmitting a measurement signal via a transmission medium5 Jun 2025US 2025/0184937 A1Giax GmbH
- Inter-Node Ranging Method and Apparatus11 Jul 2024US 2024/0230883 A1Huawei Technologies Co., Ltd.
- Method, circuit arrangement, and system for identifying impedance changes in a signal line27 Jun 2024US 2024/0214030 A1Robert Bosch GmbH
Most cited
By later US patents
- Hand-held tester and method for local area network cabling132US 7,479,776 B2IDEAL Industries, Inc. · 2009
- Dynamic digital communication system control90US 7,158,563 B2The Board of Trustees of the Leland Stanford Junior University · 2007
- Apparatus for measuring the signal transit time of a digital transmission device57US 5,864,581 ASiemens Aktiengesellschaft · 1999
- Digital group delay compensator57US 7,050,918 B2LeCroy Corporation · 2006
- Methods for canceling interfering wireless signals in cable customer premises equipment devices and outside plant57US 9,054,782 B2Cable Television Laboratories, Inc. · 2015