H03M 3/022
With adaptable step size
Official title: {with adaptable step size, e.g. adaptive delta modulation [ADM]}
H03M3/022 (With adaptable step size) appears on 95 US grants and 19 published applications in this corpus.
Search patents in H03M- Granted patents
- 95
- Published applications
- 19
- Assignees
- 61
- Inventors
- 139
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 2 | 2 |
| 2014 | 3 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System and method for lightweight in-field compression of seismic data4 Nov 2025US 12,463,657 B2King Fahd University of Petroleum and Minerals
- Compression/encoding apparatus and method, decoding apparatus and method, and program11 Aug 2020US 10,742,231 B2Sony Corporation
- Square-law companding apparatus based on nonlinear operations on modulated bit-stream17 Mar 2020US 10,594,335 B1
- A/D converter and sensor apparatus including the same31 Dec 2019US 10,523,227 B2Murata Manufacturing Co., Ltd.
- Methods and systems for transmission of arbitrary data via bluetooth HFP audio connections with low latency5 Mar 2019US 10,225,720 B2Nagravision S. A.
- System and method for lightweight in-field compression of seismic data23 Jan 2025US 2025/0030435 A1King Fahd University of Petroleum and Minerals
- Compression/encoding apparatus and method, decoding apparatus and method, and program20 Jun 2019US 2019/0190537 A1Sony Corporation
- A/d converter and sensor apparatus including the same7 Feb 2019US 2019/0044527 A1Murata Manufacturing Co., Ltd.
- Methods and systems for transmission of arbitrary data via bluetooth hfp audio connections with low latency3 May 2018US 2018/0124554 A1Nagravision S. A.
- Device and method for implementing synchronous connection-oriented (sco) pass-through links18 Jan 2018US 2018/0020318 A1Avago Technologies General IP (Singapore) Pte. Ltd.
Most cited
By later US patents
- Digital data converter166US 5,155,743 ANuance DesignWorks, Inc. · 1992
- Multi-mode signal processing99US 5,745,523 AEricsson Inc. · 1998
- A-D encoder and D-A decoder system94US 4,700,362 ADolby Laboratories Licensing Corporation · 1987
- Quadrature modulator with integrated distributed RC filters90US 5,530,722 AEricsson GE Mobile Communications Inc. · 1996
- Radio systems70US 4,580,262 ARacal-SES Limited · 1986