H03M 7/30
Compression
Official title: Compression (speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N); Expansion; Suppression of unnecessary data, e.g. redundancy reduction
H03M7/30 (Compression) appears on 8,626 US grants and 7,425 published applications in this corpus.
Search patents in H03M- Granted patents
- 8,626
- Published applications
- 7,425
- Assignees
- 2,168
- Inventors
- 12,830
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 17 | 0 |
| 1978 | 14 | 0 |
| 1979 | 13 | 0 |
| 1980 | 12 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 19 | 0 |
| 1985 | 34 | 0 |
| 1986 | 29 | 0 |
| 1987 | 28 | 0 |
| 1988 | 28 | 0 |
| 1989 | 52 | 0 |
| 1990 | 45 | 0 |
| 1991 | 66 | 0 |
| 1992 | 59 | 0 |
| 1993 | 62 | 0 |
| 1994 | 76 | 0 |
| 1995 | 90 | 0 |
| 1996 | 101 | 0 |
| 1997 | 141 | 0 |
| 1998 | 174 | 0 |
| 1999 | 147 | 0 |
| 2000 | 135 | 0 |
| 2001 | 161 | 47 |
| 2002 | 150 | 162 |
| 2003 | 178 | 200 |
| 2004 | 186 | 223 |
| 2005 | 156 | 214 |
| 2006 | 211 | 241 |
| 2007 | 237 | 225 |
| 2008 | 203 | 250 |
| 2009 | 185 | 234 |
| 2010 | 236 | 256 |
| 2011 | 226 | 253 |
| 2012 | 222 | 253 |
| 2013 | 267 | 286 |
| 2014 | 312 | 268 |
| 2015 | 288 | 262 |
| 2016 | 350 | 307 |
| 2017 | 351 | 323 |
| 2018 | 345 | 385 |
| 2019 | 381 | 386 |
| 2020 | 460 | 441 |
| 2021 | 380 | 407 |
| 2022 | 399 | 398 |
| 2023 | 388 | 408 |
| 2024 | 373 | 361 |
| 2025 | 377 | 416 |
| 2026 | 226 | 219 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03M 7/40Conversion to or from variable length codes3,083
- H03M 7/60General implementation details not specific to a particular type of compression1,747
- H03M 7/3084Using adaptive string matching1,594
- H03M 7/3059Digital compression and data reduction techniques where the original information is represented990
- H03M 7/46Conversion to or from run-length codes, i.e. by representing the number of731
- H03M 7/3002Conversion to or from differential modulation718
- H03M 7/3068Precoding preceding compression537
- H03M 7/70Type of the data to be coded, other than image and sound515
Recent patents
- Apparatus for processing received data6 Oct 2026US 12,754,692 B2Hitachi Vantara, Ltd.
- Decompression engine for decompressing compressed input data that includes multiple streams of data6 Oct 2026US 12,754,738 B2ATI Technologies ULC
- Cache structure and utilization6 Oct 2026US 12,754,876 B2Intel Corporation
- Arithmetic encoder for arithmetically encoding and arithmetic decoder for arithmetically decoding a sequence of information values, methods for arithmetically encoding and decoding a sequence of information values and computer program for implementing these methods6 Oct 2026US 12,756,405 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Data compression for a neural network29 Sep 2026US 12,748,971 B2NVIDIA Corporation
- Encoding and Decoding Variable Length Instructions8 Oct 2026US 2026/0310465 A1Imagination Technologies Limited
- Feature flag payload compression using dictionaries8 Oct 2026US 2026/0310635 A1Roblox Corporation
- Adaptive Neural Upsampling System for Decoding Lossy Compressed Data Streams in a Distributed Network Environment8 Oct 2026US 2026/0312603 A1Atombeam Technologies Inc.
- Opportunistic content delivery using delta coding8 Oct 2026US 2026/0312676 A1ViaSat, Inc.
- A method and a fault locator system for determining a location of a fault in a transmission line1 Oct 2026US 2026/0298998 A1Hitachi Energy Ltd
Most cited
By later US patents
- Data storage system and method by shredding and deshredding1,338US 7,636,724 B2Peerify Technologies, LLC · 2009
- Method for partitioning a block of data into subblocks and for storing and communcating such subblocks588US 5,990,810 A1999
- High speed data compression and decompression apparatus and method501US 4,558,302 ASperry Corporation · 1985
- Apparatus and method for compressing data signals and restoring the compressed data signals369US 4,464,650 ASperry Corporation · 1984
- Message routing system for shared communication media networks352US 5,095,480 A1992