G01M 11/333
Using modulated input signals
Official title: {using modulated input signals}
G01M11/333 (Using modulated input signals) appears on 129 US grants and 112 published applications in this corpus.
Search patents in G01M- Granted patents
- 129
- Published applications
- 112
- Assignees
- 89
- Inventors
- 287
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 13 |
| 2003 | 7 | 12 |
| 2004 | 7 | 7 |
| 2005 | 8 | 8 |
| 2006 | 12 | 5 |
| 2007 | 4 | 3 |
| 2008 | 2 | 2 |
| 2009 | 0 | 4 |
| 2010 | 3 | 3 |
| 2011 | 3 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 3 | 4 |
| 2018 | 2 | 4 |
| 2019 | 4 | 3 |
| 2020 | 4 | 5 |
| 2021 | 3 | 5 |
| 2022 | 4 | 5 |
| 2023 | 3 | 5 |
| 2024 | 2 | 7 |
| 2025 | 7 | 6 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Locating disturbances in optical fibres2 Jun 2026US 12,647,181 B2Tampnet AS
- Device, method and system for calculating power coupling coefficients between cores12 May 2026US 12,625,031 B2NTT, Inc.
- Light intensity distribution pattern measuring device and method24 Mar 2026US 12,584,818 B2NTT, Inc.
- Methods and apparatuses for optical and geometric parameter extraction for photonic integrated circuits17 Feb 2026US 12,553,792 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Monitoring device, monitoring method, optical amplifier, and optical transmission system30 Dec 2025US 12,512,642 B2NEC Corporation
- Optical fiber characteristic measurement device and optical fiber characteristic measurement method17 Sep 2026US 2026/0276480 A1Toyota School Foundation
- Method for verifying operation of an optical fiber monitoring system14 May 2026US 2026/0133092 A1
- Optical fiber characteristic measurement device and optical fiber characteristic measurement method7 May 2026US 2026/0126345 A1Yokogawa Electric Corporation
- Method and system for extracting information from an optical signal18 Sep 2025US 2025/0290827 A1Ariel Scientific Innovations Ltd.
- Light Generator11 Sep 2025US 2025/0283782 A1Cox Communications, Inc.
Most cited
By later US patents
- Determining an optical property by using superimposed delayed signals62US 7,110,119 B2Agilent Technologies, Inc. · 2006
- Optical characteristic measuring apparatus, the method thereof and recording medium57US 6,678,041 B2Advantest Corporation · 2004
- Method and apparatus for measuring chromatic dispersion coefficient48US 4,710,022 AFujitsu Limited · 1987
- Method and apparatus for measuring polarization mode dispersion in optical devices44US 5,227,623 AHewlett-Packard Company · 1993
- Measurement of attenuation of an optical fiber using bidirectional transmission of information via the fiber44US 5,455,672 AExto-Electro-Optical Engineering Inc. · 1995