H04N 19/645
By grouping of coefficients into blocks after the transform
Official title: by grouping of coefficients into blocks after the transform
H04N19/645 (By grouping of coefficients into blocks after the transform) appears on 313 US grants and 256 published applications in this corpus.
Search patents in H04N- Granted patents
- 313
- Published applications
- 256
- Assignees
- 113
- Inventors
- 421
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 5 | 0 |
| 2001 | 14 | 4 |
| 2002 | 11 | 10 |
| 2003 | 22 | 31 |
| 2004 | 14 | 40 |
| 2005 | 14 | 16 |
| 2006 | 20 | 17 |
| 2007 | 15 | 13 |
| 2008 | 26 | 5 |
| 2009 | 18 | 7 |
| 2010 | 11 | 9 |
| 2011 | 12 | 9 |
| 2012 | 10 | 5 |
| 2013 | 11 | 5 |
| 2014 | 9 | 8 |
| 2015 | 4 | 2 |
| 2016 | 4 | 8 |
| 2017 | 5 | 8 |
| 2018 | 8 | 8 |
| 2019 | 9 | 6 |
| 2020 | 6 | 14 |
| 2021 | 7 | 4 |
| 2022 | 9 | 4 |
| 2023 | 7 | 5 |
| 2024 | 3 | 3 |
| 2025 | 3 | 12 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High-performance and low-latency implementation of a wavelet-based image compression scheme7 Apr 2026US 12,597,087 B2QUALCOMM Incorporated
- Wavelet-based encoding of a video sequence and wavelet-based decoding of a bit stream20 Jan 2026US 12,532,029 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Transform-skip residual coding of video data17 Jun 2025US 12,335,527 B2Alibaba Group Holding Limited
- Transform and last significant coefficient position signaling for low-frequency non-separable transform in video coding13 May 2025US 12,301,876 B2QUALCOMM Incorporated
- Non-transform coding18 Mar 2025US 12,256,104 B2Microsoft Technology Licensing, LLC
- Displacement data coding for dynamic mesh coding21 May 2026US 2026/0143160 A1Bytedance Inc.
- Method and Apparatus of Inheriting Cross-Component Model Parameters in Video Coding System16 Apr 2026US 2026/0107020 A1Mediatek Inc.
- Method for image encoding22 Jan 2026US 2026/0025525 A1Mbda UK Limited
- Method for image encoding18 Dec 2025US 2025/0386052 A1Mbda UK Limited
- Method for image encoding4 Dec 2025US 2025/0373804 A1Mbda UK Limited
Most cited
By later US patents
- Watermark embedder and reader942US 6,614,914 B1Digimarc Corporation · 2003
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- Wavelet domain watermarks332US 6,385,329 B1Digimarc Corporation · 2002
- Storage and retrieval of large digital images196US 5,710,835 AThe Regents of the University of California Office of Technology Transfer · 1998
- Digital watermark and steganographic decoding188US 7,369,678 B2Digimarc Corporation · 2008