Invention Grant
US07975310B2 Offline playback of advertising supported media 有权
离线播放广告支持的媒体

Offline playback of advertising supported media
Abstract:
Enforcing rendering of advertisements and other predetermined media content in connection with playback of download selected media content. Playback of selected media content is made conditional on acquisition of a locally cached playback token in response to playback of the predetermined content. The playback token may be implemented as a digital rights management (DRM) license acquired from a local cache in response to playback of the predetermined content. Another aspect involves a downloading ads or other predetermined content with associated playback tokens in a local cache.
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