H04N 1/32176
Using walsh, hadamard or walsh-hadamard transforms
Official title: {using Walsh, Hadamard or Walsh-Hadamard transforms}
H04N1/32176 (Using walsh, hadamard or walsh-hadamard transforms) appears on 14 US grants and 11 published applications in this corpus.
Search patents in H04N- Granted patents
- 14
- Published applications
- 11
- Assignees
- 8
- Inventors
- 29
- Latest grant
- 19 Apr 2022
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| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 3 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year.
Recent patents
- Interference mitigation for sensor panel19 Apr 2022US 11,310,002 B2Microsoft Technology Licensing, LLC
- Impulse noise reduction for touch panel sensing7 Apr 2020US 10,613,680 B2Microsoft Technology Licensing, LLC
- Transmitting device, receiving device, and transmitting and receiving system2 Jan 2018US 9,860,097 B2Fuji Electric Co., Ltd.
- Digital watermark systems and methods29 Jan 2013US 8,364,966 B2Digimarc Corporation
- Method and system for digital watermarking of multimedia signals1 Nov 2011US 8,050,446 B2Board of Trustees of the University of Arkansas
- Hadamard ofdm for touch panel sensing6 Sep 2018US 2018/0253183 A1Microsoft Technology Licensing, LLC
- Impulse noise reduction for touch panel sensing6 Sep 2018US 2018/0253184 A1Microsoft Technology Licensing, LLC
- Interference mitigation for sensor panel6 Sep 2018US 2018/0253185 A1Microsoft Technology Licensing, LLC
- Transmitting device, receiving device, and transmitting and receiving system21 Apr 2016US 2016/0112227 A1Fuji Electric Co., Ltd.
- Digital Watermark Systems and Methods5 Jun 2008US 2008/0130944 A1Digimarc Corporation
Most cited
By later US patents
- Apparatus and method for watermark data insertion and apparatus and method for watermark data detection171US 6,240,121 B1Matsushita Electric Industrial Co., Ltd. · 2001
- Methods for embedding image, audio and video watermarks in digital data60US 6,983,057 B1Datamark Technologies PTE Ltd. · 2006
- Invisible digital watermarks58US 7,269,734 B1Digimarc Corporation · 2007
- Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon56US 6,477,276 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Robust watermarking for digital objects27US 6,463,162 B1Hewlett-Packard Company · 2002