Invention Grant
- Patent Title: Authentication using a digital watermark
- Patent Title (中): 使用数字水印进行认证
-
Application No.: US10286517Application Date: 2002-11-01
-
Publication No.: US08505108B2Publication Date: 2013-08-06
- Inventor: Geoffrey B. Rhoads
- Applicant: Geoffrey B. Rhoads
- Applicant Address: US OR Beaverton
- Assignee: Digimarc Corporation
- Current Assignee: Digimarc Corporation
- Current Assignee Address: US OR Beaverton
- Main IPC: G06F21/00
- IPC: G06F21/00
Abstract:
A method and apparatus for identifying an object include encoding physical attributes of an object where the encoded information is utilized as at least one element for composing a digital watermark for the object. In another embodiment the physical attributes of the object are utilized as a key for accessing information included in a digital watermark for the object.
Public/Granted literature
- US20040022444A1 Authentication using a digital watermark Public/Granted day:2004-02-05
Information query
