H03M 5/04
The pulses having two levels
Official title: the pulses having two levels
H03M5/04 (The pulses having two levels) appears on 1,297 US grants and 779 published applications in this corpus.
Search patents in H03M- Granted patents
- 1,297
- Published applications
- 779
- Assignees
- 460
- Inventors
- 1,896
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 16 | 0 |
| 1987 | 18 | 0 |
| 1988 | 20 | 0 |
| 1989 | 35 | 0 |
| 1990 | 14 | 0 |
| 1991 | 16 | 0 |
| 1992 | 19 | 0 |
| 1993 | 30 | 0 |
| 1994 | 21 | 0 |
| 1995 | 25 | 0 |
| 1996 | 19 | 0 |
| 1997 | 29 | 0 |
| 1998 | 40 | 0 |
| 1999 | 32 | 0 |
| 2000 | 30 | 0 |
| 2001 | 33 | 7 |
| 2002 | 41 | 34 |
| 2003 | 51 | 46 |
| 2004 | 54 | 76 |
| 2005 | 60 | 76 |
| 2006 | 76 | 53 |
| 2007 | 70 | 43 |
| 2008 | 50 | 31 |
| 2009 | 38 | 31 |
| 2010 | 42 | 31 |
| 2011 | 32 | 23 |
| 2012 | 33 | 18 |
| 2013 | 30 | 25 |
| 2014 | 30 | 29 |
| 2015 | 34 | 35 |
| 2016 | 40 | 26 |
| 2017 | 28 | 14 |
| 2018 | 19 | 20 |
| 2019 | 29 | 26 |
| 2020 | 23 | 19 |
| 2021 | 20 | 23 |
| 2022 | 22 | 23 |
| 2023 | 28 | 28 |
| 2024 | 16 | 19 |
| 2025 | 26 | 12 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor controller with data bit expansion mechanism23 Jun 2026US 12,665,530 B2Anpec Electronics Corporation
- Preamble design for ambient-internet of things24 Feb 2026US 12,562,943 B2QUALCOMM Incorporated
- Data encoding in a low frequency magnetic field27 Jan 2026US 12,537,560 B2Metrotech Corporation
- Frame structure for synchronous operation of an ambient internet-of-things device13 Jan 2026US 12,526,102 B2QUALCOMM Incorporated
- Bit error rate estimation and error correction and related systems, methods, devices6 Jan 2026US 12,517,776 B2Microchip Technology Incorporated
- Device to reader frequency multiplexing with manchester encoding6 Aug 2026US 2026/0231126 A1InterDigital Patent Holdings, Inc.
- ACT Startup Sequence23 Jul 2026US 2026/0213767 A1Infineon Technologies Americas Corp.
- Method and system for calculating forward error correction with a reduced number of gates in fec encoders30 Apr 2026US 2026/0121793 A1Inova Semiconductors GmbH
- Decoding of a biphase signal in a wireline modem30 Apr 2026US 2026/0121894 A1Schlumberger Technology Corporation
- Data Encoding in a Low Frequency Magnetic Field23 Apr 2026US 2026/0113072 A1Metrotech Corporation
Most cited
By later US patents
- Embedded signalling739US 5,319,735 ABolt Beranek and Newman Inc. · 1994
- Byte oriented DC balanced (0,4) 8B/10B partitioned block transmission code494US 4,486,739 AInternational Business Machines Corporation · 1984
- Data and voice communications system446US 4,672,605 AApplied Spectrum Technologies, Inc. · 1987
- Compatible signal encode/decode system178US 5,479,168 APacific Microsonics, Inc. · 1995
- Controller and associated mechanical characters operable for continuously performing received control data while engaging in bidirectional communications over a single communications channel153US 6,317,714 B1Microsoft Corporation · 2001