H03G 3/3052
In bandpass amplifiers or in frequency-changers used in a heterodyne receiver
Official title: {in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver (H03G3/32, H03G3/34 take precedence)}
H03G3/3052 (In bandpass amplifiers or in frequency-changers used in a heterodyne receiver) appears on 1,767 US grants and 1,414 published applications in this corpus.
Search patents in H03G- Granted patents
- 1,767
- Published applications
- 1,414
- Assignees
- 595
- Inventors
- 3,110
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 13 | 0 |
| 1978 | 4 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 14 | 0 |
| 1982 | 10 | 0 |
| 1983 | 11 | 0 |
| 1984 | 17 | 0 |
| 1985 | 21 | 0 |
| 1986 | 18 | 0 |
| 1987 | 14 | 0 |
| 1988 | 9 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 14 | 0 |
| 1993 | 17 | 0 |
| 1994 | 18 | 0 |
| 1995 | 17 | 0 |
| 1996 | 24 | 0 |
| 1997 | 27 | 0 |
| 1998 | 31 | 0 |
| 1999 | 40 | 0 |
| 2000 | 26 | 0 |
| 2001 | 31 | 19 |
| 2002 | 33 | 32 |
| 2003 | 36 | 79 |
| 2004 | 38 | 90 |
| 2005 | 32 | 80 |
| 2006 | 81 | 92 |
| 2007 | 62 | 96 |
| 2008 | 61 | 102 |
| 2009 | 83 | 97 |
| 2010 | 79 | 80 |
| 2011 | 88 | 66 |
| 2012 | 102 | 70 |
| 2013 | 95 | 68 |
| 2014 | 87 | 52 |
| 2015 | 74 | 49 |
| 2016 | 46 | 46 |
| 2017 | 60 | 47 |
| 2018 | 47 | 52 |
| 2019 | 56 | 31 |
| 2020 | 42 | 37 |
| 2021 | 29 | 29 |
| 2022 | 34 | 26 |
| 2023 | 19 | 29 |
| 2024 | 25 | 13 |
| 2025 | 18 | 16 |
| 2026 | 11 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03G 3/3068Circuits generating control signals for both r.f. and i.f. stages530
- H03G 3/3078Circuits generating control signals for digitally modulated signals435
- H03G 3/3073Circuits generating control signals when no carrier is present, or in ssb64
- H03G 3/3063Using at least one transistor as controlling device, the transistor being used62
- H03G 3/3057Using at least one diode as controlling device17
Recent patents
- Tunable effective inductance for multi-gain LNA with inductive source degeneration29 Sep 2026US 12,750,026 B2pSemi Corporation
- Dynamic audio normalization process8 Sep 2026US 12,732,148 B2Comcast Cable Communications, LLC
- Speaker displacement protection method and device, and computer-readable storage medium19 May 2026US 12,634,627 B2AAG Technologies (Nanjing) Co., Ltd.
- Method and apparatus for automatic gain control28 Apr 2026US 12,615,024 B2Intel Corporation
- Variable gain low noise amplifier and method for controlling gain of variable gain low noise amplifier14 Apr 2026US 12,603,624 B2Mediatek Inc.
- Methods for automatic gain control6 Aug 2026US 2026/0231055 A1QUALCOMM Incorporated
- Variable gain low noise amplifier and method for controlling gain of variable gain low noise amplifier9 Jul 2026US 2026/0196977 A1Mediatek Inc.
- Multi-connectivity automatic gain control18 Jun 2026US 2026/0172067 A1QUALCOMM Incorporated
- Open systems architecture tactical radio interference improvement7 May 2026US 2026/0128761 A1Rockwell Collins, Inc.
- Method and device in nodes used for wireless communication30 Apr 2026US 2026/0121896 A1Bunker Hill Technologies LLC
Most cited
By later US patents
- Apparatus and method for attenuating a multicarrier input signal of a linear device334US 5,384,547 AMotorola, Inc. · 1995
- Zero intermediate frequency receiver having an automatic gain control circuit201US 5,483,691 AMotorola, Inc. · 1996
- System for controlling signal level at both ends of a transmission link based on a detected valve188US 5,321,849 ASouthwestern Bell Technology Resources, Inc. · 1994
- TV signal receiving double conversion television tuner system having automatic gain control provisions180US 5,200,826 ASamsung Electronics Co., Ltd. · 1993
- Gain control method and receiver177US 6,167,244 AMitsubishi Denki Kabushiki Kaisha · 2000