H03H 2218/04
In-phase and quadrature [i/q] signals
Official title: In-phase and quadrature [I/Q] signals
H03H2218/04 (In-phase and quadrature [i/q] signals) appears on 67 US grants and 53 published applications in this corpus.
Search patents in H03H- Granted patents
- 67
- Published applications
- 53
- Assignees
- 55
- Inventors
- 125
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 2 | 4 |
| 2008 | 0 | 2 |
| 2009 | 2 | 6 |
| 2010 | 2 | 5 |
| 2011 | 5 | 5 |
| 2012 | 5 | 1 |
| 2013 | 4 | 2 |
| 2014 | 6 | 2 |
| 2015 | 2 | 3 |
| 2016 | 3 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 2 | 4 |
| 2024 | 3 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Data sensing circuit with parallel digital filter processing18 Aug 2026US 12,712,558 B2Sigmasense, LLC.
- In-phase/quadrature-phase generating device and phase shift device using the same6 May 2025US 12,294,334 B2Electronics and Telecommunications Research Institute
- Cascadable filter architecture11 Mar 2025US 12,249,970 B2Imec Vzw
- Data sensing circuit with parallel digital filter processing19 Nov 2024US 12,149,257 B2Sigmasense, LLC.
- Digital decimation filtering circuit of analog to digital conversion circuit14 May 2024US 11,984,902 B2Sigmasense, LLC.
- Data sensing circuit with parallel digital filter processing13 Feb 2025US 2025/0055467 A1Sigmasense, LLC.
- In-memory analog channel equalization4 Apr 2024US 2024/0113698 A1Intel Corporation
- In-phase/quadrature-phase generating device and phase shift device using the same2 Nov 2023US 2023/0353094 A1Electronics and Telecommunications Research Institute
- Digital decimation filtering circuit of analog to digital conversion circuit28 Sep 2023US 2023/0308107 A1Sigmasense, LLC.
- Data sensing circuit with parallel digital filter processing31 Aug 2023US 2023/0275595 A1Sigmasense, LLC.
Most cited
By later US patents
- Method and apparatus for high speed digital phased array coherent imaging system52US 4,839,652 AGeneral Electric Company · 1989
- Methods and apparatus for variable-rate down-sampling filters for discrete-time sampled systems using a fixed sampling rate31US 6,014,682 AInternational Business Machines Corporation · 2000
- Log-sampled filter system24US 7,555,081 B2Harman International Industries, Incorporated · 2009
- Configurable filter and receiver incorporating same23US 7,526,052 B2Raytheon Company · 2009
- Programmable down-sampler having plural decimators and modulator using same21US 5,872,480 AIndustrial Technology Research Institute · 1999