Communication terminal for restricting the use of content

Details Communication terminal for restricting the use of content Communication terminal for restricting the use of content

2008-03-18

2008-03-18

Perez-Gutierrez, Rafael (Department: 2617)

Telecommunications

Radiotelephone system

Security or fraud prevention

C705S052000

Reexamination Certificate

active

10452842

ABSTRACT:
Mobile terminal receives from a server a content, a sending time information which indicates the time of sending the content, and a time restriction information that indicates the time period when the content can be used. Mobile terminal correlates the content with the sending time information and the time restriction information, and stores them. Mobile terminal calculates the difference between the time of receiving the content and the sending time information. Mobile terminal correlates the difference with the content and stores them. Mobile terminal adds the difference to the current time kept by time keeping unit to obtain a usage determination reference time. Mobile terminal compares the usage determination reference time with the time restriction information to determine whether the mobile terminal can use the content or not.

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patent: 6003082 (1999-12-01), Gampper et al.
patent: 2002/0120465 (2002-08-01), Mori et al.
patent: 0 807 873 (1997-11-01), None
patent: 2001-356966 (2001-12-01), None
patent: WO 00/04712 (2000-01-01), None

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