Digital copyright management device for PDA mobile phone service content and its method

Abstract

The invention relates to a device for managing the digital copyright of the mobile service content of a PDA mobile phone, and a method thereof. A problem of easy implementation of duplication and sending occurs as a user can freely approach the downloaded contents when the PDA mobile phone of a current WinCE operation system is used. The invention comprises a downloading module downloading mobile service content data when connecting with a content server for an operator providing the mobile service, a digital copyright management module obtaining the mobile service content data from the downloading module and encrypting the mobile service content data, a recording module recording the data encrypted by the digital copyright management module and the data downloaded by the downloading module in a memory. The downloading module immediately only transmits data A to the digital copyright management module and transmits the mobile service content data excluding the data A to the recording module while downloading one part A of the mobile service content data. Therefore the invention has the advantages that the invention does not have larger influence on the system load and can protect the effect of service content.

Description

Technical field [0001] The invention relates to a digital copyright management device and method for mobile service content of a PDA mobile phone, in particular to ciphering a part of the data when the mobile service content is downloaded by a PDA mobile phone, and decoding it during playback, so as to prevent the digital copyright of the PDA mobile phone service content from being copied without reason Management methods. Background technique [0002] The initial mobile communication services were aimed at providing simple voice communication services, but recently various data communication services using wireless Internet have appeared. For example, it provides download services such as ringtones, moving images, MP3, location services, e-mail processing via wireless Internet, and electronic transaction services. [0003] Among them, for the use of ringtones, moving images, and MP3 download services, portable terminals, PDA phones, camera phones and other terminals are generall...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned digital rights management technology is regarded as a solution that can protect and manage digital information copyright at the current stage, it has not been popularized due to the characteristics of portable terminals.

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