Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9449210 | Method and system for detecting a correction pattern in a QR code | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2016-09-20 |
| 9230148 | Method and system for binarization of two dimensional code image | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2016-01-05 |
| 9177188 | Method and system for detecting detection patterns of QR code | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2015-11-03 |
| 9135489 | System for decoding two dimensional code and method thereof | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2015-09-15 |
| 9111165 | Method and system for filtering detection patterns in a QR code | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2015-08-18 |
| 9087253 | Method and system for determining edge line in QR code binary image | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2015-07-21 |
| 9070034 | Method and system for correcting QR code image | Ling Zhang, Chao Guan, Zhenhua Liu, Gezhang Liu | 2015-06-30 |