Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8864033 | Robust decoding of color barcode printed with extremely small data cells | Yibin Tian, Xiaonong Zhan | 2014-10-21 |
| 8844821 | Multi-layer barcode for print on demand document management | — | 2014-09-30 |
| 8640955 | Color barcode producing, reading and/or reproducing method and apparatus | — | 2014-02-04 |
| 8595503 | Method of self-authenticating a document while preserving critical content in authentication data | — | 2013-11-26 |
| 8576455 | Determining if a received fax is an auto-reply for a transmitted fax | — | 2013-11-05 |
| 8576439 | Method for calculating color transform in WCS pipeline | — | 2013-11-05 |
| 8576445 | Method for processing high dynamic range images using tone mapping to extended RGB space | Waleed H. Mebane, Bong sun Lee, Jared Wayne Takeo Clock | 2013-11-05 |
| 8576446 | Deblurring and supervised adaptive thresholding for print-and-scan document image evaluation | Yibin Tian | 2013-11-05 |
| 8544748 | Creation and placement of two-dimensional barcode stamps on printed documents for storing authentication information | — | 2013-10-01 |
| 8442221 | Method and apparatus for image encryption and embedding and related applications | — | 2013-05-14 |
| 8430301 | Document authentication using hierarchical barcode stamps to detect alterations of barcode | Yibin Tian | 2013-04-30 |
| 8379261 | Creation and placement of two-dimensional barcode stamps on printed documents for storing authentication information | — | 2013-02-19 |
| 8358437 | Method for compensating for color variations across a printed page using multiple color profiles | Hiroshi Tomita | 2013-01-22 |
| 8331670 | Method of detection document alteration by comparing characters using shape features of characters | Songyang Yu | 2012-12-11 |
| 8300289 | Method for compensating for color variations across a printed page using multiple-pass printing | Hiroshi Tomita | 2012-10-30 |
| 8215556 | Color barcode producing, reading and/or reproducing method and apparatus | — | 2012-07-10 |
| 8170275 | Determining document authenticity in a closed-loop process | Maria Qian Zhao | 2012-05-01 |
| 8144361 | Creation and placement of two-dimensional barcode stamps on printed documents for storing authentication information | Maria Qian Zhao | 2012-03-27 |
| 8050493 | Method for generating a high quality scanned image of a document | — | 2011-11-01 |
| 8045193 | Automatic detection of user preference for copy or scan setting | — | 2011-10-25 |
| 8038064 | Color barcode producing method and apparatus, color barcode reading method and apparatus and color barcode reproducing method and apparatus | Hiroshi Tomita | 2011-10-18 |
| 8027067 | Method for correcting skew in scanned documents | Maria Qian Zhao | 2011-09-27 |
| 8000528 | Method and apparatus for authenticating printed documents using multi-level image comparison based on document characteristics | Yibin Tian | 2011-08-16 |
| 7999657 | Image registration method for image comparison and document authentication | Yibin Tian | 2011-08-16 |
| 7978366 | Method for compensating for color variations among multiple printers | — | 2011-07-12 |