Nokia Corporation

Nokia Technologies Oy

Jukka Antero Alve

Zheng Yan

Juha Hietasarka

Peter K Chiu

Mauri Kangas

Pekka Lahtinen

Ari Ikonen

Tapani Heikkilä

Harri Juhani Pekonen

Valtteri Niemi

Juha-Pekka Luoma

Juha Tomberg

Pasi Kärkäs

Jan Mårtensson

Ola Lidholm

Rami Suominen

Pekka Llmani Lahtinen

The present invention provides methods, apparatuses, and systems for delivering protected streaming content to a receiving device. In an aspect of the present invention, a broadcaster provides streaming content. To ensure viewers are properly authorized, the streaming content is encrypted with a traffic key. The traffic key is provided to the users via a key stream message, which is encrypted with a service key. The user obtains at least one rights object from a rights issuers and the at least one rights object includes the service key so that the streaming content may be used. The at least one rights object also contains information regarding usage rights that may be configured by the rights issuer so that, depending on the user and/or the receiving device, different rights may be available. The key stream message may include a program category variable value that indicates the type of content and in conjunction with the rights object, determines what usage rights exist for the streaming content.

Fine grain rights management of streaming content

A system and method is disclosed for allowing content providers to protect against widespread copying of their content, while enabling them to give their customers more freedom in the way they use the content. In accordance with one embodiment, content providers identify their content as protected by watermarking the content. Consumers use compliant devices to access protected content. All of a user's compliant devices, or all of a family's devices, can be organized into an authorized domain. This authorized domain is used by content providers to create a logical boundary in which they can allow users increased freedom to use their content.

System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage state

An apparatus for providing a content protection system for protecting personal content may include a processor configured to receive an indication of personal content submitted for inclusion in a content protection system, and determine admissibility of the personal content to the content protection system based at least in part on indicia associated with a source device from which the personal content originated. A corresponding method and computer program product are also provided.

Method, apparatus and computer program product for a content protection system for protecting personal content

An apparatus for providing protected content to a device(s) by reacquisition of the content from an entity of a service may include a processor and a memory storing executable computer program code that causes the apparatus to at least perform operations including determining one or more Digital Rights Management (DRM) formats that one or more devices support in response to receipt of an indication(s). The computer program code may cause the apparatus to arrange data identifying the devices based at least in part on the DRM formats that correspond to the devices. The computer program code may cause the apparatus to facilitate receipt of content in at least one DRM format that at least one of the devices supports in response to a determination that a first device was selected to provide the content to a device for rendering. Corresponding computer program products and methods are also provided.

Method, apparatus and computer program product for providing protected content to one or more devices by reacquiring the content from a service

The invention provides an enforcement mechanism for limiting the propagation of content to a predefined proximity in a heterogeneous network. The protection mechanism determines the distance associated with wireless links of the heterogeneous networks and verifies that the distance is within the predefined proximity limits. The distance may be measured by evaluating the signal strength of received signals. The protection mechanism further uses round trip time determinations to enforce the proximity limits on wired or unknown segments of the heterogeneous network. Specifically, the round trip time associated with a wired or unknown segment may be determined using the round trip time associated with the wireless segments and the total round trip time of the network as a whole. The round trip time of the wired or unknown segment is then compared to a round trip time limit associated with the proximity requirement for distributing content.

Proximity enforcement in heterogeneous network environments

Enforcement of geographic and location based constraints on content distribution is provided to allow distribution of content to remote devices while preventing unauthorized use and consumption of the content. Content requested by a device may be protected using a variety of content protection mechanisms that support geographic constraints. The requesting device may be required to validate and/or obtain the device's physical location prior to being granted access to the protected content. The requesting device may validate and/or obtain its physical location by requesting location information from a location server or another geographic aware device. The distribution of the location information from the location server may be limited to a predefined proximity. The proximity limit on the dissemination of the location information prevents remote devices from fraudulently using the location information. Location information may be encapsulated and may be formatted as a content file.

Enforcing geographic constraints in content distribution

A system and method is disclosed for providing DRM in a broadcast environment. In accordance with the embodiment, a DRM system distributes encrypted service keys over the mobile telephone network to a mobile terminal. The mobile terminal receives the encrypted service key and uses it to decrypt encrypted content keys received from a DVB set top box. The decrypted content keys are sent to the set box over local link where they are used to decrypt encrypted broadcast content. A power management technique for mobile receivers is also disclosed that enables the receiver hardware to power off during a portion of the rendering process.

System and method for using DRM to control conditional access to broadband digital content

A system and method is disclosed for providing DRM in a broadcast environment. In accordance with the embodiment, a DRM system distributes encrypted service keys over the mobile telephone network to a mobile terminal. The mobile terminal receives the encrypted service key and uses it to decrypt encrypted content keys received from a DVB set top box. The decrypted content keys are sent to the set box over local link where they are used to decrypt encrypted broadcast content.

System and method for using DRM to control conditional access to DVB content

System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage

Systems and methods for distributing keys of the sort used for purposes including logging onto computer networks, accessing authorized domains, and accessing persistently-protected data. Also discussed is a smart card that offers network connectivity to a media device.

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Vantaa, Finland

Jukka Antero Alve