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Biderman, CA

David Biderman, San Jose, CA US

Patent application numberDescriptionPublished
20100169303PLAYLISTS FOR REAL-TIME OR NEAR REAL-TIME STREAMING - Methods and apparatuses for real-time or near real-time streaming of content using transfer protocols such as an HTTP compliant protocol. In one embodiment, a method includes dividing a stream of data, representing the contiguous time based content of a program (e.g. a live video broadcast), into a plurality of distinct media files, and generating a playlist file having a plurality of tags and Universal Resource Indicators (URIs) indicating an order of presentation of the plurality of distinct media files. The plurality of media files and the playlist file can be made available for transmission to a client device which can retrieve the media files using the playlist file.07-01-2010
20100169453UPDATABLE REAL-TIME OR NEAR REAL-TIME STREAMING - Methods and apparatuses for real-time or near real-time streaming of content using transfer protocols such as an HTTP compliant protocol. In one embodiment, a method includes dividing a stream of data, representing the contiguous time based content of a program (e.g. a live video broadcast), into a plurality of distinct media files, and generating a playlist file having a plurality of tags and Universal Resource Indicators (URIs) indicating an order of presentation of the plurality of distinct media files. The plurality of media files and the playlist file can be made available for transmission to a client device which can retrieve the media files using the playlist file.07-01-2010
20100169458Real-Time or Near Real-Time Streaming - Methods and apparatuses for real-time or near real-time streaming of content using transfer protocols such as an HTTP compliant protocol. In one embodiment, a method includes dividing a stream of data representing the contiguous time based content of a program (e.g. a live video broadcast), into a plurality of distinct media files, and generating a playlist file having a plurality of tags and Universal Resource Indicators (URIs) indicating an order of presentation of the plurality of distinct media files. The plurality of media files and the playlist file can be made available for transmission to a client device which can retrieve the media files using the playlist file.07-01-2010
20100169459VARIANT STREAMS FOR REAL-TIME OR NEAR REAL-TIME STREAMING - Methods and apparatuses for real-time or near real-time streaming of content using transfer protocols such as an HTTP compliant protocol. In one embodiment, a method includes dividing a stream of data, representing the contiguous time based content of a program (e.g. a live video broadcast), into a plurality of distinct media files, and generating a playlist file having a plurality of tags and Universal Resource Indicators (URIs) indicating an order of presentation of the plurality of distinct media files. The plurality of media files and the playlist file can be made available for transmission to a client device which can retrieve the media files using the playlist file.07-01-2010
20110072105VARIANT STREAMS FOR REAL-TIME OR NEAR REAL-TIME STREAMING TO PROVIDE FAILOVER PROTECTION - Methods and apparatuses provide real-time or near real-time streaming of content using transfer protocols such as an HTTP compliant protocol. In one embodiment, a method includes providing multiple redundant locations that provide media content to client devices using alternative streams. To implement failover protection, a first server device or first content distribution service creates a stream, or multiple alternate bandwidth streams and generates playlist file(s). A second server device or second content distribution service creates a parallel stream, or set of streams. A client attempts to download the playlist file(s) from a first uniform resource locator (URL) using a first stream associated with the first server device or the first content distribution service. If a client is unable to download the playlist file(s) from the first URL, the client attempts to switch to an alternate stream associated with another URL.03-24-2011

David L. Biderman, San Francisco, CA US

Patent application numberDescriptionPublished
20090138936INTELLIGENT IDENTIFICATION OF MULTIMEDIA CONTENT FOR SYNCHRONIZATION - An intelligent synchronization tool ensures access to desired content in a manner that automatically keeps the content current on the portable media device. A variation threshold or user-specified degree of content variation may be introduced among content downloaded to a user's mobile device to prevent the user from becoming bored. Furthermore, intelligent synchronization may automatically populate the portable media device with popular content to save a user time and/or use passive monitoring techniques to ascertain a user's preferences for subsequent population.05-28-2009
20100180293NETWORK SCORING SYSTEM AND METHOD - A client may be configured to access a network by identifying a network bandwidth configuration setting to be used by the client in accessing a networked content source, enabling the client to access the content source using the network bandwidth configuration setting, monitoring client access to the content source, comparing client access metrics to metrics associated with the network bandwidth configuration setting, determining, based on the comparison, whether to adjust the network bandwidth configuration settings for the client, and adjusting the network bandwidth configuration setting if appropriate.07-15-2010
20100228965SYSTEM AND METHOD FOR USING A STREAMING PROTOCOL - An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.09-09-2010

Patent applications by David L. Biderman, San Francisco, CA US

David L. Biderman, San Jose, CA US

Patent application numberDescriptionPublished
20100091985SYSTEM AND METHOD FOR USING A STREAMING PROTOCOL - An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.04-15-2010