Invention Grant
US07986806B2 Paper products and physical objects as means to access and control a computer or to navigate over or act as a portal on a network
失效
纸制品和物理对象作为访问和控制计算机或在网络上导航或作为门户网站的手段
- Patent Title: Paper products and physical objects as means to access and control a computer or to navigate over or act as a portal on a network
- Patent Title (中): 纸制品和物理对象作为访问和控制计算机或在网络上导航或作为门户网站的手段
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Application No.: US10764430Application Date: 2004-01-23
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Publication No.: US07986806B2Publication Date: 2011-07-26
- 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: G06K9/00
- IPC: G06K9/00 ; G06K7/10 ; G06K7/12 ; G02B5/32
Abstract:
The claimed invention relates generally to steganography and watermarking. One claim recites: a method including: using an electronic application program to compose an electronic version of a document; providing the document onto a substrate, the provided substrate being steganographically encoded with plural-bit auxiliary data, the steganographically encoded plural-bit auxiliary data is substantially imperceptible to casual human inspection, but is detectable through visible light imaging of the document and processing of image data thereby produced; and storing at least some of the plural-bit auxiliary data in association with data identifying a location at which the electronic version of the document is stored. Of course, other combinations are provided and claimed as well.
Public/Granted literature
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