H04N 1/448
Rendering the image unintelligible
Official title: {Rendering the image unintelligible, e.g. scrambling}
H04N1/448 (Rendering the image unintelligible) appears on 512 US grants and 566 published applications in this corpus.
Search patents in H04N- Granted patents
- 512
- Published applications
- 566
- Assignees
- 238
- Inventors
- 1,087
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 9 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 15 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 7 | 3 |
| 2002 | 7 | 17 |
| 2003 | 4 | 23 |
| 2004 | 5 | 14 |
| 2005 | 8 | 16 |
| 2006 | 12 | 19 |
| 2007 | 6 | 32 |
| 2008 | 9 | 39 |
| 2009 | 10 | 27 |
| 2010 | 16 | 26 |
| 2011 | 22 | 17 |
| 2012 | 25 | 19 |
| 2013 | 21 | 21 |
| 2014 | 29 | 17 |
| 2015 | 24 | 25 |
| 2016 | 15 | 31 |
| 2017 | 15 | 23 |
| 2018 | 27 | 31 |
| 2019 | 26 | 27 |
| 2020 | 30 | 30 |
| 2021 | 23 | 24 |
| 2022 | 29 | 36 |
| 2023 | 17 | 15 |
| 2024 | 19 | 11 |
| 2025 | 10 | 13 |
| 2026 | 8 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Imaging device with image encryption1 Sep 2026US 12,726,732 B2SK hynix Inc.
- Digital processing systems and methods for dual mode editing in collaborative documents enabling private changes in collaborative work systems4 Aug 2026US 12,699,962 B2Monday .Com Ltd.
- Image capturing apparatus, image capturing system, and control method23 Jun 2026US 12,665,975 B2Canon Kabushiki Kaisha
- Adaptive optical obfuscation system for blocking electronic detection and providing visual concealment12 May 2026US 12,624,826 B1
- Self-verifying hidden digital media within other digital media5 May 2026US 12,621,400 B2
- Communication device and email sending method capable of suppressing leakage of destination set to bcc to email recipient1 Oct 2026US 2026/0303580 A1KYOCERA Document Solutions Inc.
- Image processing apparatus, information processing terminal, and information processing method2 Jul 2026US 2026/0189667 A1Canon Kabushiki Kaisha
- File viewing system, file viewing method, and storage medium30 Apr 2026US 2026/0119688 A1NEC Corporation
- System and method for partially encrypting image files based on an image policy23 Apr 2026US 2026/0111570 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for creating enhanced documents for perfect automated parsing26 Mar 2026US 2026/0087062 A1Bold Limited
Most cited
By later US patents
- Method and apparatus for embedding authentication information within digital data738US 5,646,997 A1997
- Secure payment method using facsimile477US 5,590,196 ACONNOTECH Experts-conseils, inc. · 1996
- Apparatus and method for preventing disclosure through user-authentication at a printing node401US 5,633,932 AIntel Corporation · 1997
- Method and system for accessing electronic resources via machine-readable data on intelligent documents359US 6,434,561 B1NeoMedia Technologies, Inc. · 2002
- Method and apparatus for in-camera image marking and authentication291US 5,862,218 AFotoNation Limited · 1999