Digital rights management in a mobile communications...

Details Digital rights management in a mobile communications... Digital rights management in a mobile communications...

2006-06-09

2008-08-19

Worjloh, Jalatee (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S051000, C705S052000, C705S056000, C705S059000, C705S065000, C726S008000, C726S009000, C726S026000, C726S027000, C726S029000, C709S201000, C709S217000, C709S231000, C709S232000

Reexamination Certificate

active

07415439

ABSTRACT:
The invention provides a method, system, and computer program product to control the access, copying, and/or transfer of a digital asset by mobile, wireless devices using a digital voucher. The digital voucher references a primary content that contains all of the expression for that particular asset and a secondary content that contains information that can be distilled out as a preview. The information in the primary content can be limited to a specified duration or a specific number of viewings. The author, owner, or possessor of the digital asset specifies the terms and conditions for distribution of the digital asset. The digital voucher authorizes the mobile, wireless device to access a specified primary or secondary content that may be located elsewhere in the network. The mobile, wireless device can download a copy of portions or all of the content depending on the terms specified in the voucher.

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