H04B 1/68
Details of transmission systems, not covered by a single one of groups
Official title: for wholly or partially suppressing the carrier or one side band
H04B1/68 (Details of transmission systems, not covered by a single one of groups) appears on 126 US grants and 63 published applications in this corpus.
Search patents in H04B- Granted patents
- 126
- Published applications
- 63
- Assignees
- 71
- Inventors
- 178
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 8 |
| 2003 | 3 | 4 |
| 2004 | 4 | 6 |
| 2005 | 2 | 3 |
| 2006 | 7 | 4 |
| 2007 | 2 | 7 |
| 2008 | 5 | 1 |
| 2009 | 1 | 3 |
| 2010 | 3 | 2 |
| 2011 | 2 | 1 |
| 2012 | 3 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 3 |
| 2016 | 4 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 7 |
| 2025 | 5 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and devices for selectively amplifying multiple carriers in different frequency bands25 Aug 2026US 12,719,508 B2Molex Incorporated
- Apparatus, system and method of transmitting a wideband radio frequency (RF) transmit (TX) signal20 Jan 2026US 12,531,583 B2Intel Corporation
- Frequency dependent residual side band correction4 Nov 2025US 12,463,782 B2QUALCOMM Incorporated
- Frequency dependent residual side band training signals7 Oct 2025US 12,438,623 B2QUALCOMM Incorporated
- Method and apparatus for channel aggregation and single sideband transmission23 Sep 2025US 12,425,068 B2Ihp GmbH—Innovations for High Performance Microelectronics/Leibniz-Institut Fur Innovative Mikroelektronik
- Signal transmission method and apparatus, communication device, and storage medium3 Jul 2025US 2025/0220656 A1Vivo Mobile Communication Co., Ltd.
- Single-sideband phase-sensitive detection method and system19 Jun 2025US 2025/0202515 A1Tsinghua University
- Synthesizing composite signals19 Dec 2024US 2024/0421847 A1Textron Systems Corporation
- Digital cancellation of cim3 distortion for digital transmitters10 Oct 2024US 2024/0340030 A1Avago Technologies International Sales Pte. Limited
- Method and apparatus for channel aggregation and single sideband transmission5 Sep 2024US 2024/0297681 A1IHP GmbH-Innovations for High Performance Microelectronics/Leibniz-Institut fur innovative
Most cited
By later US patents
- Frequency-hopped single sideband mobile radio system270US 4,479,226 AAT&T Bell Laboratories · 1984
- Full duplex frequency division multiplex communication system205US 4,644,526 A1987
- Equalization and decision-directed loops with trellis demodulation in high definition TV140US 6,775,334 B1Broadcom Corporation · 2004
- Signal transmission system and a transmitter and a receiver for use in the system138US 4,768,187 AU. S. Philips Corporation · 1988
- Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems121US 4,019,140 ABell Telephone Laboratories, Incorporated · 1977