Adobe, Inc.

Peter Sorotokin

James Lester

Richard Wright

William H McCoy

Sunil Agrawal

Andrei Sheretov

Richard A Dermer

Daniel J Clark

Jim Lester

Nicholas Bogaty

Various embodiments of a system and method for parts-based digital rights management are described. Various embodiments may include a digital rights management component configured to receive content comprising a plurality of portions of content. The digital rights management component may also receive a license for the encrypted content; the license may include a plurality of permissions each specific to a respective portion of the content. Additionally, each permission may specify one or more access privileges for the respective portion of the content. The digital rights management component may receive a digital signature for the entire license. The digital rights management component may validate the digital signature to determine that the permissions have not been modified. The digital rights management component may also be configured to, in response to determining that said permissions have not been modified, provide access to content in accordance with said license including said permissions.

System and method for parts-based digital rights management

Methods, systems and program products for providing a first visual region, the first visual region configured to present content determined by a document. A distinct second visual region is provided, the second visual region not defined by the document and configured to present content that is not contained in the document. One or more attributes are identified in the electronic document. Based on the one or more attributes, the presentation of ad content in the second visual region is enabled or disabled. The electronic document is presented in the first visual region.

Content based ad display control

A document rights management system (DRM) defines an unrenderable origin designator in a media item that does not display or alter the physically rendered version of an instantiation of the media item. The unrenderable designator does not appear as an obscured or occluded feature in a printed or displayed versions. The rendered version is unaffected by the unrenderable designator because it does not result in any displayable features. The unrenderable designator is stored in a display list of the media item and appears as an attribute of objects such that the function to cause the display object to be undisplayable, or unrenderable, are not immediately apparent. The DRM system encodes a designator in an attribute of a display object for rendering according to a media rendering format such as PDF, such that the designator causes the display object to be unrenderable and indicates the origin of the media item.

Document origin designator

A digital rights management retrieval system is provided. In some embodiments, a digital rights management system includes receiving a first notification from a first client device of a first protected content transaction for a first user with a first content distributor, wherein the first notification includes a first network address for the first content distributor; receiving a second notification from the first client device of a second protected content transaction by the first user with a second content distributor, wherein the second notification includes a second network address for the second content distributor; and maintaining a first list of content distributors for the first user, wherein the first list includes a network address for each content distributor from which the first user has downloaded protected content.

Digital rights management retrieval system

A method and system to automatically adjust content being layed out into a target area for browser rendering is provided. An example method comprises a first pass module, a progress data collector, a second pass module, and a communications module. The first pass module may be configured to perform a first pass of laying out source content into a total target area to determine a total crash area consumed by the source content. The progress data collector may be configured to collect progress data associated with the laying out of the source content into the total target area. The second pass module may be configured to perform a second pass of laying out of the source content into the total target area to generate a data object model. The communications module may be configured to provide the data object model to a browser engine for rendering.

Method and system to modify source content to fit into a target display area in a browser

In an example embodiment, a digital content distributor may transmit an unsigned license associated with a protected digital object to a digital rights management provider. The digital rights management provider may digitally sign the license and may transmit the signed license to the digital content distributor.

Digital rights management distribution system

Various embodiments of a system and method for transparently authenticating a user to a digital rights management entity are described. In various embodiments, a digital rights management server may be configured to receive an authentication token from a first remote computer system. Such authentication token may indicate that a particular user of the first remote computer system was authenticated by a first content provider of one or more content providers. In various embodiments, the digital rights management server may also be configured to verify the authentication token by determining that one or more portions of the authentication token were generated based on respective authentication information issued to the first content provider. In various embodiments, the digital rights management server may also be configured to, in response to verification of the authentication token, issue to the first remote computer system one or more credentials.

System and method for transparently authenticating a user to a digital rights management entity

Methods, computer program products and systems for accessing an electronic document, the electronic document including embedded content, where the file type of the electronic document differs from the file type of the embedded content. The embedded content is provided to a first rendering engine in accordance with the embedded content file type. Rendered embedded content is received from the first rendering engine. The rendered embedded content is blended with a rendering of a page of the electronic document.

Embedding rendering interface

Various embodiments of a system and method for digital rights management using digital signatures are described. Various embodiments may include a digital rights management component configured to receive license data including user information and an encrypted decryption key. The digital rights management component may also receive a digital signature and encrypted content data. The digital rights management component may, in response to determining that the digital signature is a valid digital signature of the license data, generate on a device, a message including the user information. The digital rights management component may also perform a key derivation function on the user information to generate a result, generate a decryption key by decrypting the encrypted decryption key with the result of the key derivation function, and decrypt the encrypted content data with the generated decryption key to generate unencrypted content data.

System and method for digital rights management using digital signatures

Content based Ad display control

A virtual view tree for representing a document. A virtual view tree is maintained by an application, rather than a renderer (e.g., graphics rendering library) called upon by the application to display the document. The view tree is virtual in that nodes need not be created until they are to be displayed. When instructed to display the document, the renderer requests nodes and their attributes. The nodes may be cached while the renderer works on their content, but may be removed from memory anytime thereafter. Only a subset of the virtual view tree's nodes is stored at one time, and only in non-persistent storage. The application includes various APIs for navigating a virtual view tree, describing its attributes and caching its nodes. The APIs may be directly accessible to the renderer or may be invoked by subsystems of the application (e.g., client, tree navigation and caching subsystems).

Growing community of inventors

Cupertino, CA, United States of America

Peter Sorotokin