H04N 1/32165
Using cosine transforms
Official title: {using cosine transforms}
H04N1/32165 (Using cosine transforms) appears on 100 US grants and 74 published applications in this corpus.
Search patents in H04N- Granted patents
- 100
- Published applications
- 74
- Assignees
- 59
- Inventors
- 151
- Latest grant
- 21 Feb 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 6 |
| 2002 | 6 | 6 |
| 2003 | 6 | 13 |
| 2004 | 10 | 11 |
| 2005 | 5 | 4 |
| 2006 | 11 | 7 |
| 2007 | 11 | 6 |
| 2008 | 4 | 8 |
| 2009 | 8 | 3 |
| 2010 | 3 | 3 |
| 2011 | 7 | 1 |
| 2012 | 7 | 3 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Video signature creation and matching21 Feb 2017US 9,578,394 B2Cisco Technology, Inc.
- Method and apparatus for classifying sections of an image into a plurality of embedded areas20 Jan 2015US 8,938,088 B2Hitachi Solutions, Ltd.
- Watermarking of digital images using watermark-indicators25 Feb 2014US 8,660,295 B2Google Inc.
- Digital watermark systems and methods29 Jan 2013US 8,364,966 B2Digimarc Corporation
- Copy protected information distribution30 Oct 2012US 8,300,877 B2Sony Mobile Communications Inc.
- Composite information bearing devices3 Nov 2016US 2016/0321531 A1Infotoo International Limited
- Video signature creation and matching29 Sep 2016US 2016/0286285 A1Cisco Technology, Inc.
- Steganographic method28 Mar 2013US 2013/0077817 A1Cardygen Ltd.
- Image processing device, image generation device, image processing method, and image generation method29 Nov 2012US 2012/0300976 A1Hitachi Solutions, Ltd.
- Watermarking and Fingerprinting Digital Content Using Alternative Blocks to Embed Information20 Sep 2012US 2012/0237078 A1Kaleidescape, Inc.
Most cited
By later US patents
- Secure spread spectrum watermarking for multimedia data664US 5,930,369 ANEC Research Institute, Inc. · 1999
- Digital watermarking618US 5,915,027 ANEC Corporation · 1999
- Spread spectrum watermark for embedded signalling442US 5,848,155 ANEC Research Institute, Inc. · 1998
- Method for protecting content using watermarking392US 5,949,885 A1999
- Method and apparatus for embedding data, including watermarks, in human perceptible sounds368US 6,061,793 ARegents of the University of Minnesota · 2000