H04J 1/04
Frequency-transposition arrangements
Official title: Frequency-transposition arrangements {(modulation with carrier or side-band suppression H03C1/52, H03C1/60; single-band suppression H04B1/00, H04B15/00; telegraphic communication H04L27/02, H04L25/49; transference of modulation from one carrier to another, e.g. frequency- changing H03D7/00; demodulation or transference of modulation of modulated electromagnetic waves H03D9/00)}
H04J1/04 (Frequency-transposition arrangements) appears on 156 US grants and 87 published applications in this corpus.
Search patents in H04J- Granted patents
- 156
- Published applications
- 87
- Assignees
- 97
- Inventors
- 251
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 3 |
| 2002 | 6 | 3 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 2 | 0 |
| 2006 | 3 | 1 |
| 2007 | 0 | 1 |
| 2008 | 3 | 0 |
| 2009 | 3 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 5 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 3 | 4 |
| 2015 | 5 | 2 |
| 2016 | 1 | 3 |
| 2017 | 2 | 7 |
| 2018 | 3 | 10 |
| 2019 | 8 | 9 |
| 2020 | 13 | 8 |
| 2021 | 3 | 8 |
| 2022 | 8 | 3 |
| 2023 | 8 | 0 |
| 2024 | 3 | 2 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wireless communication system, wireless communication method, and wireless device17 Mar 2026US 12,580,670 B2NTT, Inc.
- Satellite system and method for geolocating a radiofrequency transmitter20 Jan 2026US 12,531,632 B2Thales
- Media access control for frequency division full duplex in WLAN28 Jan 2025US 12,212,508 B1Marvell Asia Pte Ltd
- Multiplexer, filter, and communication device9 Apr 2024US 11,956,069 B2Murata Manufacturing Co., Ltd.
- Method and apparatus for transmitting a HARQ-ACK2 Apr 2024US 11,950,239 B2Motorola Mobility LLC
- Control apparatus and control method13 Aug 2026US 2026/0236818 A1Fujitsu Limited
- Wireless communication system, wireless communication method, and wireless device15 May 2025US 2025/0158697 A1Nippon Telegraph and Telephone Corporation
- Ifof scheme optical transmission system20 Mar 2025US 2025/0096921 A1Mitsubishi Electric Corporation
- Wireless communication system, wireless communication method, and wireless device13 Mar 2025US 2025/0088297 A1Nippon Telegraph and Telephone Corporation
- Radio-frequency multiplexing systems, devices and methods11 Apr 2024US 2024/0120952 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Packetized ensemble modem245US 4,438,511 ATelebit Corporation · 1984
- Method and apparatus for digital audio broadcasting and reception158US 5,278,826 AUSA Digital Radio · 1994
- Digital down converter and method145US 5,493,581 AHarris Corporation · 1996
- Efficient digital frequency division multiplexed signal receiver137US 5,251,218 AHughes Aircraft Company · 1993
- Transceiver apparatus employing wideband FFT channelizer with output sample timing adjustment and inverse FFT combiner for multichannel communication network134US 5,537,435 A1996