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Patent applications and USPTO patent grants for Chang; Cheng-Ru.The latest application filed is for "code pattern for providing information and decoding method and image processing device".
Patent | Date |
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Code pattern for providing information and decoding method and image processing device Grant 8,955,760 - Chang , et al. February 17, 2 | 2015-02-17 |
Two dimensional dot code, and decoding apparatus and method for a two dimensional dot code Grant 7,942,341 - Ao , et al. May 17, 2 | 2011-05-17 |
Code Pattern For Providing Information And Decoding Method And Image Processing Device App 20100128997 - Chang; Cheng-Ru ;   et al. | 2010-05-27 |
Method For Producing Code Patterns, And Code Patterns App 20100102134 - Chang; Cheng-Ru ;   et al. | 2010-04-29 |
Two Dimensional Dot Code, And Decoding Apparatus And Method For A Two Dimensional Dot Code App 20090302114 - AO; CHEN-HUA ;   et al. | 2009-12-10 |
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