H04N 1/4175
Involving the encoding of tone transitions with respect to tone transitions in
Official title: {involving the encoding of tone transitions with respect to tone transitions in a reference line}
H04N1/4175 (Involving the encoding of tone transitions with respect to tone transitions in) appears on 94 US grants and 9 published applications in this corpus.
Search patents in H04N- Granted patents
- 94
- Published applications
- 9
- Assignees
- 39
- Inventors
- 152
- Latest grant
- 15 Jan 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 12 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Parallel fast drawing of unrotated delta row encoded images15 Jan 2019US 10,182,178 B2KYOCERA Document Solutions Inc.
- Image compressing device, image forming apparatus, image compressing method, and recording medium17 Apr 2018US 9,948,824 B2Ricoh Company, Ltd.
- Image decoding apparatus, image decoding method, and printing apparatus8 Jan 2013US 8,351,719 B2Canon Kabushiki Kaisha
- Image compression method, decompression method thereof and program therefor21 Aug 2007US 7,259,891 B2Fujitsu Limited
- Image coding apparatus and method thereof and coded image decoding apparatus and method thereof26 Dec 2006US 7,154,420 B2Sony Corporation
- Encoding a binary image25 Sep 2025US 2025/0301161 A1Microsoft Technology Licensing, LLC
- Parallel Fast Drawing of Unrotated Delta Row Encoded Images5 Apr 2018US 2018/0097970 A1KYOCERA Document Solutions Inc.
- Image compressing device, image forming apparatus, image compressing method, and recording medium21 Sep 2017US 2017/0272613 A1Ricoh Company, Ltd.
- Image decoding apparatus, image decoding method, and printing apparatus5 Mar 2009US 2009/0060357 A1Canon Kabushiki Kaisha
- Image encoding device and method, and encoded image decoding device and method28 Sep 2006US 2006/0214819 A1Sony Corporation
Most cited
By later US patents
- High speed CCITT decompressor67US 5,229,863 AXerox Corporation · 1993
- Image data processing apparatus capable of high-speed data encoding and/or decoding63US 4,887,224 ACanon Kabushiki Kaisha · 1989
- Method for encoding and decoding a digital image61US 4,888,645 AInternational Business Machines Corporation · 1989
- Method for encoding and decoding a digital image38US 4,725,815 AInternational Business Machines Corporation · 1988
- Scan encoding of two dimensional pictorial entities33US 4,107,648 ABell Telephone Laboratories, Incorporated · 1978