发明申请
- 专利标题： CONTENT IDENTIFICATION AND ELECTRONIC TICKETS, COUPONS AND CREDITS
- 专利标题（中）： 内容标识和电子票，优惠券和信用证
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申请号： US13349948申请日： 2012-01-13
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公开(公告)号： US20120114169A1公开(公告)日： 2012-05-10
- 发明人: Brett T. Hannigan , Tyler J. McKinley
- 申请人： Brett T. Hannigan , Tyler J. McKinley
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
The present invention relates to digital watermarking methods and systems. In one embodiment, a handheld device displays a digitally watermarked image at an event center. An optical scanner captures optical scan data representing the device display. A watermark decoder analyzes the captured optical scan data to obtain the watermark. The watermark is used to determine authorized entry. The handheld device may include a cell phone or other portable computing device.
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