H04B 1/408
The transmitter oscillator frequency being identical to the receiver local oscillator frequency
Official title: the transmitter oscillator frequency being identical to the receiver local oscillator frequency
H04B1/408 (The transmitter oscillator frequency being identical to the receiver local oscillator frequency) appears on 147 US grants and 87 published applications in this corpus.
Search patents in H04B- Granted patents
- 147
- Published applications
- 87
- Assignees
- 95
- Inventors
- 277
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 9 |
| 2003 | 4 | 6 |
| 2004 | 3 | 8 |
| 2005 | 3 | 3 |
| 2006 | 10 | 9 |
| 2007 | 8 | 7 |
| 2008 | 3 | 2 |
| 2009 | 6 | 4 |
| 2010 | 6 | 3 |
| 2011 | 3 | 3 |
| 2012 | 3 | 2 |
| 2013 | 3 | 2 |
| 2014 | 3 | 3 |
| 2015 | 4 | 5 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 3 |
| 2020 | 3 | 1 |
| 2021 | 2 | 1 |
| 2022 | 2 | 3 |
| 2023 | 2 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Antenna and electronic device including same4 Mar 2025US 12,244,327 B2Samsung Electronics Co., Ltd.
- Sounding reference signal sending method and related apparatus19 Nov 2024US 12,149,466 B2Huawei Technologies Co., Ltd.
- Self mixing frequency doubler tripler circuits for wireless communication29 Oct 2024US 12,132,512 B2Swiftlink Technologies Inc.
- Antenna and electronic device including the same12 Mar 2024US 11,929,768 B2Samsung Electronics Co., Ltd.
- Device for generating radiofrequency signals in phase quadrature12 Sep 2023US 11,757,477 B2STMicroelectronics (Alps) SAS
- Transceiver device18 Jun 2026US 2026/0172070 A1Realtek Semiconductor Corp.
- Radio communication apparatus and estimation method8 Jan 2026US 2026/0012211 A11FINITY Inc.
- Transmitter and method to generate a transmit signal3 Apr 2025US 2025/0112649 A1Intel Corporation
- Method and device for performing ranging between radio signal devices13 Feb 2025US 2025/0052889 A1Nordic Semiconductor ASA
- Antenna and electronic device including same27 Jun 2024US 2024/0214007 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Self-cancelling full-duplex RF communication system243US 5,691,978 ASignal Science, Inc. · 1997
- Dual-mode communications processor157US 5,778,024 AQUALCOMM Incorporated · 1998
- Method and apparatus for cancelling in-band energy leakage from transmitter to receiver152US 5,444,864 AE-Systems, Inc. · 1995
- Validation of subscriber signals in a cellular radio network145US 5,684,794 AHazeltine Corporation · 1997
- Duplex radio system utilizing time compression expansion105US 4,525,835 AInternational Standard Electric Corporation · 1985