H04B 14/023
Using pulse amplitude modulation
Official title: {using pulse amplitude modulation}
H04B14/023 (Using pulse amplitude modulation) appears on 81 US grants and 78 published applications in this corpus.
Search patents in H04B- Granted patents
- 81
- Published applications
- 78
- Assignees
- 55
- Inventors
- 131
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 3 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 3 | 3 |
| 2011 | 3 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 5 |
| 2014 | 3 | 1 |
| 2015 | 2 | 1 |
| 2016 | 2 | 0 |
| 2017 | 2 | 5 |
| 2018 | 4 | 6 |
| 2019 | 8 | 7 |
| 2020 | 6 | 7 |
| 2021 | 10 | 10 |
| 2022 | 5 | 6 |
| 2023 | 5 | 4 |
| 2024 | 2 | 5 |
| 2025 | 9 | 5 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Network transceiver with VGA channel specific equalization25 Nov 2025US 12,483,288 B2Microsoft Technology Licensing, LLC
- Methods and apparatuses for signaling with geometric constellations18 Nov 2025US 12,476,859 B2Constellation Designs, LLC
- Optical transmitter with encoder encoding processed data including concatenating parity bits to generate fec data blocks22 Jul 2025US 12,368,528 B2Marvell Asia Pte Ltd
- Systems and methods for supporting both pulse amplitude modulation and quadrature amplitude modulation10 Jun 2025US 12,328,219 B2Altera Corporation
- Memory system and operations of the same27 May 2025US 12,314,575 B2
- System including coding device for transceiving multi-level signal20 Aug 2026US 2026/0246670 A1Seoul National University R&Db Foundation
- Unit cell-based dac26 Feb 2026US 2026/0058671 A1NXP B. V.
- Methods and Apparatuses for Signaling with Geometric Constellations19 Feb 2026US 2026/0052054 A1Constellation Designs, LLC
- Systems and Methods for Supporting Both Pulse Amplitude Modulation and Quadrature Amplitude Modulation2 Oct 2025US 2025/0310173 A1Altera Corporation
- Memory system and operations of the same4 Sep 2025US 2025/0278204 A1Lodestar Licensing Group LLC
Most cited
By later US patents
- Multiple-channel transmission over a single-wire bus305US 8,509,318 B2STMicroelectronics (Rousset) SAS · 2013
- Transmission link105US 5,020,154 ASiemens Aktiengesellschaft · 1991
- Mapper for high data rate signalling90US 5,862,179 AGeneral DataComm, Inc. · 1999
- Mapper for high data rate signalling69US 5,822,371 AGeneral DataComm, Inc. · 1998
- Methods and apparatuses for signaling with geometric constellations68US 8,265,175 B2Constellation Designs, LLC · 2012