Pre-Grant Publication Number: 20070136608
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Review this prior art and click on the thumbs up (or down) to indicate whether this submission should be forwarded to the USPTO.
If you login then you can add an annotation by typing in the box at the bottom of the screen to comment on the relevance of the prior art to the claims of the patent application.
Prior Art Detail
Summary / Description
| Summary / Description | The prior art describes a system for controlling access to digital content after it has been downloaded to the user terminal. It covers the parts of the application that concern encryption, DRM and its management. |
Basic Information
| Type of Prior Art | Issued Patents - US |
| Country | United States of America |
| Patent/Application # | 6915425 |
| Kind Code | United States (US) - United STATES Patent - A |
| Patentee Name | Aladdin Knowledge Systems, Ltd |
| Relevant Pages, Columns, or Lines | |
| URL | http://patft.uspto.gov/netacgi/... |
| Filing Date | July 5, 2005 |
| Additional Information | |
Notes / To Do
| Notes | |
Excerpt
Excerpt A system permitting offline content playback and managing the rights to one or more digital content files within a computer network.
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Relevance
Claims
6
The method as recited in Claim 1, wherein prior to the off-line transaction the first and second media playback devices:
authenticate each other by exchanging certificates;
create a session key;
establish a data encryption and a data compression capability; and
establish a session identifier.
Relevance
Claim 7 in the prior art covers this.
Claim 7 in the prior art covers this.
Claim Chart
All
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