发明申请
- 专利标题： MODIFIED TWO-DIMENSIONAL CODES, AND LASER SYSTEMS AND METHODS FOR PRODUCING SUCH CODES
- 专利标题（中）： 改进的二维码，以及激光系统及其生产方法
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申请号： US14194455申请日： 2014-02-28
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公开(公告)号： US20150248602A1公开(公告)日： 2015-09-03
- 发明人: Justin D. REDD
- 申请人： ELECTRO SCIENTIFIC INDUSTRIES, INC.
- 申请人地址： US OR Portland
- 专利权人： ELECTRO SCIENTIFIC INDUSTRIES, INC.
- 当前专利权人： ELECTRO SCIENTIFIC INDUSTRIES, INC.
- 当前专利权人地址： US OR Portland
- 主分类号： G06K19/06
- IPC分类号： G06K19/06 ; B41J2/44 ; G06K1/12
摘要：
Each black square within a two-dimensional code can be represented by a distribution of spots. Each spot can be made small enough to be invisible to the human eye so that the two-dimensional code can be invisible on or within transparent or nontransparent materials. The spots can be spaced at a large distance to increase the signal-to-noise ratio for an optical code reader. A laser can be used to produce the spots.
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