US 7,249,264 B2Granted

Secure IP based streaming in a format independent manner

AssigneeInternational Business Machines Corporation

InventorsWilliam R. Belknap, Glenn E. Brew, Jeffrey B. Lotspiech, Stefan Nusser, Peter Westerink

Life of this patent

Estimating the term…

Loading patent…

Abstract

A system, method and computer readable medium for providing secure IP-based streaming in a format independent manner is disclosed. The method on a content mastering system begins with an encoded media file consisting of content data and associated metadata. First, the metadata is read from the encoded media file. Next, the encoded media file including the content data and the associated metadata is encrypted. Then, in a streaming server system, the encoded/encrypted media file is divided into more than one data packet, streamed in accordance with one or more parameters in the metadata. Each data packet includes a portion of the encoded/encrypted media file and an offset value corresponding to a location within the encoded/encrypted media file. The data packets are then streamed to a client information processing system (i.e., the client) over a network.

Claims20

Dependent claims

A method on a server information processing system for providing streaming data, comprising:

receiving a media file including content data and associated metadata, wherein the media file has been encoded and encrypted, wherein the media file is a single media file that is available for both downloading and streaming, and wherein the associated metadata, at least prior to the media file being encrypted, includes streaming parameters for streaming data packets in addition to the single media file being available for downloading and non-streaming parameters;
receiving non-encrypted metadata associated with the media file, wherein the non-encrypted metadata is received separately and distinctly from the media file, and wherein the non-encrypted metadata is a portion of the associated metadata and is extracted from the media file prior to the media file and the associated metadata being encrypted, wherein the non-encrypted metadata includes one or more of the streaming parameters for streaming data packets, and wherein the media file is encrypted prior to receiving the non-encrypted metadata;
dividing the media file which has been encoded and encrypted into more than one data packet, wherein each data packet includes a portion of the media file and an offset value corresponding to a location within the media file, and wherein the dividing is independent of a format for the media file;
and
streaming the more than one data packets over a network to a client as directed by the one or more parameters in the non-encrypted metadata associated with the media file, wherein the streaming is independent of a format for the media file.

2 more elements

A computer readable medium including computer instructions on a server information processing system for providing streaming data, the computer instructions comprising:

receiving a media file including content data and associated metadata, wherein the media file has been encoded and encrypted, wherein the media file is a single media file that is available for both downloading and streaming, and wherein the associated metadata, at least prior to the media file being encrypted, includes streaming parameters for streaming data packets in addition to the single media file being available for downloading and non-streaming parameters;
receiving non-encrypted metadata associated with the media file, wherein the non-encrypted metadata is received separately and distinctly from the media file, and wherein the non-encrypted metadata is a portion of the associated metadata and is extracted from the media file prior to the media file and the associated metadata being encrypted, wherein the non-encrypted metadata includes one or more of the streaming parameters for streaming data packets, and wherein the media file is encrypted prior to receiving the non-encrypted metadata;
dividing the media file which has been encoded and encrypted into more than one data packet, wherein each data packet includes a portion of the media file and an offset value corresponding to a location within the media file, and wherein the dividing is independent of a format for the media file;
and
streaming the more than one data packets over a network to a client as directed by the one or more parameters in the non-encrypted metadata associated with the media file, wherein the streaming is independent of a format for the media file.

2 more elements

Dependencies are inferred from the claim text.