Other

Actifio, Inc.

Emission Limited Liability Company

Mark L Woodward

Gene Fein

Christopher L Harris

E Oliver Jones

Steve S Sherman

Bennie Jones

Anthony Salotto

Christopher A Provenzano

Systems and methods are provided for caching hashes for deduplicated data. A request to read data from the deduplication data store is received. A persist header stored in a deduplication data store is identified in a first hash structure that is not stored in memory of the computing device. The persist header comprises a set of hashes that includes a hash that is indicative of the data the computing device requested to read. Each hash in the set of hashes represents data stored in the deduplication data store after the persist header that is co-located with other data represented by the remaining hashes in the set of hashes. The set of hashes is cached in a second hash structure stored in the memory, whereby the computing device can identify the additional data using the second hash structure if the additional data is represented by the persist header.

System and method for caching hashes for co-located data in a deduplication data store

Collecting user preference information related to a playing media recording is accomplished by gathering descriptive information related to the playing media recording from a media player program presenting the playing media recording and determining if tags are embedded in the media recording and gathering descriptive information related to the playing media recording from the tags embedded in the playing media recording, if the tags exist. Further, determining if a table of contents exists on the media recording and gathering a table of contents for a collection containing the playing media recording by identifying the collection using a concatenation of track lengths identifier generation technique, the table of contents exists. Then assembling the descriptive information into a media recording information packet and sending the media recording information packet to a server computer, resulting in a collection of user preference information related to the playing media recording.

Method, apparatus and program product for media identification and tracking associated user preferences

Collecting user preference information related to a playing media recording is accomplished by gathering descriptive information related to the playing media recording from a media player program presenting the playing media recording and determining if tags are embedded in the media recording and gathering descriptive information related to the playing media recording from the tags embedded in the playing media recording, if the tags exist. Further, determining if a table of contents exists on the media recording and gathering a table of contents for a collection containing the playing media recording by identifying the collection using a concatenation of track lengths identifier generation technique, if the table of contents exists. Then assembling the descriptive information into a media recording information packet and sending the media recording information packet to a server computer, resulting in a collection of user preference information related to the playing media recording.

Method, apparatus and computer program product for identifying a playing media file and tracking associated user preferences

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Milton, MA, United States of America

Mark L Woodward