US10521566B2
patent
(57) One aspect of the present invention discloses a client device for content security. The device includes : an application execution unit configured to control content in response to a content control command requested in a user level; a DRM agent configured to communicate with a DRM server and the application execution unit in the user level, to detect the content control command, to receive an encryption /decryp
17 claims. 288,014 characters of text.