H03M 7/50
Conversion to or from non-linear codes
Official title: Conversion to or from non-linear codes, e.g. companding
H03M7/50 (Conversion to or from non-linear codes) appears on 78 US grants and 28 published applications in this corpus.
Search patents in H03M- Granted patents
- 78
- Published applications
- 28
- Assignees
- 62
- Inventors
- 139
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 5 | 4 |
| 2018 | 2 | 3 |
| 2019 | 2 | 1 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bit extension processing apparatus, bit extension processing method, and bit extension processing program stored in a non-transitory storage medium10 Feb 2026US 12,548,580 B2JVCKENWOOD Corporation
- Method and device for quantizing data representative of a radio signal received by a radio antenna of a mobile network30 Sep 2025US 12,432,010 B2Orange
- Method and device for quantizing data representative of a radio signal received by a radio antenna of a mobile network5 Aug 2025US 12,381,764 B2Orange
- Computer architecture for string searching25 Jun 2024US 12,019,701 B2International Business Machines Corporation
- Coding dense transient events with companding28 Nov 2023US 11,830,507 B2Dolby International AB
- Signal processing device, signal processing method, and non-transitory computer-readable medium27 Aug 2026US 2026/0254463 A1NEC Corporation
- Bit extension processing apparatus, bit extension processing method, and bit extension processing program stored in a non-transitory storage medium11 Apr 2024US 2024/0119952 A1JVCKENWOOD Corporation
- Method and device for quantizing data representative of a radio signal received by a radio antenna of a mobile network17 Aug 2023US 2023/0261914 A1Orange
- Method and device for quantizing data representative of a radio signal received by a radio antenna of a mobile network29 Jun 2023US 2023/0208553 A1Orange
- Computer architecture for string searching2 Feb 2023US 2023/0036196 A1International Business Machines Corporation
Most cited
By later US patents
- Compression of stored waveforms for artificial speech261US 4,852,168 A1989
- Compression of stored waveforms for artificial speech178US 4,833,718 AFirst Byte · 1989
- Method and apparatus employing audio frequency offset extraction and floating-point conversion for digitally encoding and decoding high-fidelity audio signals98US 4,922,537 AFrederiksen & Shu Laboratories, Inc. · 1990
- Integrated PCM level control and conversion using a lookup table89US 5,243,342 AStratacom, Inc. · 1993
- Apparatus and method for selectively storing depth information of a 3-D image75US 5,819,017 ASilicon Graphics, Inc. · 1998