Sequenced transmission of digital content items

摘要

The disclosure provides a system and method for managing and sequencing the transmission of digital content items from a network-accessible content service to a portable digital content device. The content service includes a cache management subsystem and provides storage for a plurality of playlists which are variously associated with user accounts and which each contain one or more digital content items. The cache management subsystem is configured to sequence transmission of digital content items to a given portable device based on attributes associated with the playlists containing the digital content items to be transmitted to the device.

主权项

1. A digital content system comprising:
a network-accessible digital content service comprising a cache management subsystem and a mass storage subsystem containing a plurality of playlists that are variously associated with a plurality of user accounts, each playlist including one or more digital content items and each playlist having one or more playlist attributes; and a plurality of portable digital content devices physically distinct from and operatively coupled with the network-accessible digital content service via a network, wherein each portable digital content device comprises memory providing a local cache and is associated with one of the plurality of user accounts, and wherein, for each portable digital content device, the network-accessible digital content service is configured to
adaptively sequence an order of the digital content items of two or more playlists for transmission, andsend the digital content items of the two or more playlists in the sequenced order from the network-accessible digital content service to the local cache of that portable digital content device via the network, the sequenced order of the digital content items of the two or more playlists based on the playlist attributes of each of the two or more playlists, the digital content items of the two or more playlists only stored on the local cache once the digital content items of the two or more playlists are received from the network-accessible digital content service.