G06K 7/146
The method including quality enhancement steps
Official title: {the method including quality enhancement steps}
G06K7/146 (The method including quality enhancement steps) appears on 985 US grants and 813 published applications in this corpus.
Search patents in G06K- Granted patents
- 985
- Published applications
- 813
- Assignees
- 320
- Inventors
- 1,440
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 14 | 0 |
| 1995 | 24 | 0 |
| 1996 | 26 | 0 |
| 1997 | 17 | 0 |
| 1998 | 24 | 0 |
| 1999 | 22 | 0 |
| 2000 | 26 | 0 |
| 2001 | 21 | 5 |
| 2002 | 14 | 12 |
| 2003 | 20 | 43 |
| 2004 | 16 | 28 |
| 2005 | 29 | 14 |
| 2006 | 25 | 28 |
| 2007 | 16 | 13 |
| 2008 | 22 | 14 |
| 2009 | 12 | 13 |
| 2010 | 7 | 11 |
| 2011 | 7 | 24 |
| 2012 | 13 | 30 |
| 2013 | 35 | 34 |
| 2014 | 43 | 40 |
| 2015 | 46 | 51 |
| 2016 | 56 | 51 |
| 2017 | 50 | 39 |
| 2018 | 36 | 36 |
| 2019 | 37 | 44 |
| 2020 | 45 | 50 |
| 2021 | 54 | 51 |
| 2022 | 40 | 42 |
| 2023 | 41 | 46 |
| 2024 | 45 | 34 |
| 2025 | 37 | 29 |
| 2026 | 20 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G06K 7/1473Error correction227
- G06K 7/1491The method including a reconstruction step226
- G06K 7/1465Using several successive scans of the optical code171
- G06K 7/1486Setting the threshold-width for bar codes to be decoded131
- G06K 7/1478Adapting the threshold for pixels in a cmos or ccd pixel sensor108
- G06K 7/1482Using fuzzy logic or natural solvers, such as neural networks, genetic algorithms45
- G06K 7/1469Using sub-pixel interpolation24
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- Generating a plurality of partial code options20 Aug 2026US 2026/0244886 A1Flexa Inc.
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Most cited
By later US patents
- Apparatus operative for capture of image data573US 8,596,542 B2Hand Held Products, Inc. · 2013
- Record with encoded data561US 5,337,361 ASymbol Technologies, Inc. · 1994
- High density two-dimensional bar code symbol559US 5,304,786 ASymbol Technologies, Inc. · 1994
- Method and apparatus for reading optical indicia using a plurality of data sources547US 8,678,286 B2Honeywell Scanning & Mobility · 2014
- Devices and methods employing dual target auto exposure545US 8,646,692 B2Hand Held Products, Inc. · 2014