Digital video signature apparatus and methods for use with video program identification systems
US-9015742-B2 · Apr 21, 2015 · US
Digital watermark embedding apparatus, digital watermark embedding method, and digital watermark detection apparatus
US8942413B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942413-B2 |
| Application number | US-201113331220-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2011 |
| Priority date | Dec 28, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A digital watermark embedding apparatus includes an interface circuit which acquires video data and digital watermark information, and a processor which embeds the digital watermark information into the video data. The processor is adapted to, for each symbol contained in the digital watermark information, set a time segment, cause the area of a watermark pattern formed by a plurality of pixels having a prescribed value, and superimposed on each image contained in the video data, to vary in periodic fashion over time in the time segment according to the value of the symbol contained in the digital watermark information, and correct, using the prescribed value, the value of each pixel contained in a region where each image in the video data and the watermark pattern corresponding to that image overlap each other.
First claim
Opening claim text (preview).
What is claimed is: 1. A digital watermark embedding apparatus comprising: an interface circuit which acquires video data and digital watermark information; and a processor which embeds the digital watermark information into the video data, wherein the processor is adapted to, for each symbol contained in the digital watermark information, set a time segment including a plurality of images contained in the video data, cause the area of a watermark pattern formed by a plurality…
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Classifications
- H04N19/00557Primary
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
- H04N19/467Primary
Electricity · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8942413B2 cover?
- A digital watermark embedding apparatus includes an interface circuit which acquires video data and digital watermark information, and a processor which embeds the digital watermark information into the video data. The processor is adapted to, for each symbol contained in the digital watermark information, set a time segment, cause the area of a watermark pattern formed by a plurality of pixels…
- Who is the assignee on this patent?
- Anan Taizo, Kuraki Kensuke, Nakagata Shohei, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04N19/00557. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).