H04L 27/1563
Using transition or level detection
Official title: {using transition or level detection}
H04L27/1563 (Using transition or level detection) appears on 136 US grants and 85 published applications in this corpus.
Search patents in H04L- Granted patents
- 136
- Published applications
- 85
- Assignees
- 120
- Inventors
- 276
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 3 |
| 2003 | 2 | 3 |
| 2004 | 3 | 6 |
| 2005 | 2 | 5 |
| 2006 | 3 | 6 |
| 2007 | 3 | 5 |
| 2008 | 2 | 0 |
| 2009 | 6 | 4 |
| 2010 | 3 | 3 |
| 2011 | 3 | 4 |
| 2012 | 4 | 2 |
| 2013 | 1 | 2 |
| 2014 | 4 | 3 |
| 2015 | 6 | 6 |
| 2016 | 4 | 2 |
| 2017 | 2 | 2 |
| 2018 | 4 | 6 |
| 2019 | 7 | 7 |
| 2020 | 7 | 5 |
| 2021 | 4 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for wireless charging and communication via clamping pulses28 Oct 2025US 12,456,887 B2Advanced Neuromodulation Systems, Inc.
- Method and apparatus for transmitting PLCP frame in wireless local area network system3 Jun 2025US 12,323,283 B2Telefonaktiebolaget LM Ericsson (publ)
- Method and apparatus for transmitting PLCP frame in wireless local area network system13 Feb 2024US 11,902,068 B2Telefonaktiebolaget LM Ericsson (publ)
- Digital mobile radio with enhanced transceiver27 Dec 2022US 11,539,561 B2Analog Devices International Unlimited Company
- HART sampling25 Jan 2022US 11,233,683 B2Rockwell Automation Limited
- Glitch rejection for fsk demodulation4 Jun 2026US 2026/0155813 A1STMicroelectronics International N. V.
- Decoder circuit, corresponding receiver and transmission system9 Apr 2026US 2026/0100871 A1STMicroelectronics International N. V.
- Method of performing synchronization and frequency offset estimation using isi considered reference signal and receiver performing the same1 Aug 2024US 2024/0259970 A1Samsung Electronics Co., Ltd.
- Method and Apparatus for Transmitting PLCP Frame in Wireless Local Area Network System11 Jul 2024US 2024/0235909 A9Telefonaktiebolaget LM Ericsson (publ)
- Method and Apparatus for Transmitting PLCP Frame in Wireless Local Area Network System25 Apr 2024US 2024/0137255 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Adaptive FSK demodulator and threshold detector134US 4,716,376 AAT&T Information Systems Inc. · 1987
- FSK Demodulator employing a switched capacitor filter and period counters116US 4,517,519 AKabushiki Kaisha Suwa Seikosha · 1985
- Data demodulation80US 6,674,786 B1Sankyo Seiki Mfg. Co., Ltd. · 2004
- Digital FSK demodulator70US 4,485,347 AMitsubishi Denki Kabushiki Kaisha · 1984
- Telephone with novel FSK decoding means, simultaneous off-hook caller ID reception means, and set of configurable function key means56US 6,226,369 B1Cybiotronics Limited · 2001