Invention Grant
- Patent Title: Selecting bit positions for storing a digital watermark
- Patent Title (中): 选择用于存储数字水印的位位置
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Application No.: US11949400Application Date: 2007-12-03
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Publication No.: US08108681B2Publication Date: 2012-01-31
- Inventor: Sreekrishnan Venkiteswaran
- Applicant: Sreekrishnan Venkiteswaran
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Eric W B. Dias; Roy W. Truelson
- Main IPC: H04L9/32
- IPC: H04L9/32
Abstract:
A method comprises selecting bit positions for storing a digital watermark in digital audio data in time domain by choosing a spread function characterising the plurality of the selected bit positions, wherein the spread function comprises at least one Gaussian curve.
Public/Granted literature
- US20090141929A1 SELECTING BIT POSITIONS FOR STORING A DIGITAL WATERMARK Public/Granted day:2009-06-04
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