Invention Grant
US07882034B2 Digital rights management for content rendering on playback devices
有权
播放设备上的内容呈现的数字版权管理
- Patent Title: Digital rights management for content rendering on playback devices
- Patent Title (中): 播放设备上的内容呈现的数字版权管理
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Application No.: US10719981Application Date: 2003-11-21
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Publication No.: US07882034B2Publication Date: 2011-02-01
- Inventor: Joshua D. Hug , Bradley D. Hefta-Gaub
- Applicant: Joshua D. Hug , Bradley D. Hefta-Gaub
- Applicant Address: US WA Seattle
- Assignee: RealNetworks, Inc.
- Current Assignee: RealNetworks, Inc.
- Current Assignee Address: US WA Seattle
- Agency: Stoel Rives LLP
- Agent Kory D. Christensen
- Main IPC: G06F21/00
- IPC: G06F21/00
Abstract:
In one embodiment, an elapsed playback time associated with a digital playback device is determined and compared to an allotted playback time for the device. In the event the elapsed and allotted playback times satisfy a predetermined relationship with respect to one another, further content playback on the device may be denied or otherwise regulated until content playback rights intrinsic to the device are renewed or “recharged”.
Public/Granted literature
- US20050114896A1 Digital rights management for content rendering on playback devices Public/Granted day:2005-05-26
Information query
