Patent · US Active

Method and device for managing digital content

US8489885B2 · kind B2 · utility

3Cited by

5References

15Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Changjie Wang · Shanghai, CN
Fulong Ma · Shanghai, CN
Hui Li · Gaozhuang, CN

Key dates

Filing date	Nov 9, 2009
Grant date	Jul 16, 2013
Priority date	—
Expiry date	Feb 1, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/10
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention provides a method and devices for managing digital content, the method comprising the steps of sending, by a first device (21), an encrypted content key (202) to a second device (22); sending, by said second device (22) to a third device (23), a license data describing the rights to use said digital content by said third device (23) in response to a request from said third device (23) to use said digital content, wherein said license data includes said encrypted content key (202); and receiving, by said third device (23) from said first device (21), data for decrypting said encrypted content key (202).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.