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    FILE DECRYPTION INTERFACE
    7.
    发明公开
    FILE DECRYPTION INTERFACE 审中-公开
    解码文件界面

    公开(公告)号：EP2002375A2

    公开(公告)日：2008-12-17

    申请号：EP07760140.9

    申请日：2007-04-04

    申请人： QUALCOMM Incorporated

    发明人： KRASNYANSKIY, Maksim ,  WINGERT, Christopher ,  AGGARWAL, Pooja

    IPC分类号： G06F21/00

    CPC分类号： G06F21/602 ,  G06F21/6218

    摘要： Systems and methodologies are described that facilitate digital rights management in a wireless communication environment. Generally, content (e.g., data files, video images, etc.) can be downloaded and maintained in its encrypted state to ensure protection of digital rights. Consequently, programming applications that utilize such content decrypt the content at the time of use (e.g., playback or access). A file interface can be provided that allows applications to access encrypted content utilizing a standardized file I/O interface. Decryption of content can be transparent to individual applications utilizing encrypted content. Therefore, modifications cryptographic algorithms or procedures and changes in key sizes need not affect the programming application.

    METHOD AND APPARATUS FOR ENCRYPTING/DECRYPTING MULTIMEDIA CONTENT TO ALLOW RANDOM ACCESS
    8.
    发明公开
    METHOD AND APPARATUS FOR ENCRYPTING/DECRYPTING MULTIMEDIA CONTENT TO ALLOW RANDOM ACCESS 审中-公开
    用于加密的方法和设备/解密多媒体内容直接访问使能

    公开(公告)号：EP1913779A1

    公开(公告)日：2008-04-23

    申请号：EP06787375.2

    申请日：2006-07-12

    申请人： QUALCOMM INCORPORATED

    发明人： WINGERT, Christopher ,  AGGARWAL, Pooja

    IPC分类号： H04N7/24 ,  H04N7/16

    CPC分类号： H04N21/2347 ,  G06F21/60 ,  G06F21/602 ,  H04N7/1675 ,  H04N21/235 ,  H04N21/23897 ,  H04N21/2541 ,  H04N21/41407 ,  H04N21/435 ,  H04N21/43856 ,  H04N21/835 ,  H04N21/84 ,  H04N21/8455 ,  H04N21/85406

    摘要： A method is disclosed for encrypting a multimedia file including parsing the multimedia file to identify a media data portion; encrypting the media data portion; and, combining the encrypted media data portion with a non-encrypted non-media data portion. A method is also disclosed for playing a multimedia file including parsing the multimedia file to identify an unencrypted metadata portion; using the unencrypted metadata portion to locate a position of interest in the media file, the position of interest having an associated encrypted media data portion; and, decrypting the associated encrypted media data portion. An apparatus for performing the methods is also disclosed herein.

    摘要翻译： 一种方法是游离缺失盘用于加密的多媒体文件包括分析所述多媒体文件以识别媒体数据部分; 加密媒体数据部分; 并且，该加密的媒体数据部分与非加密的非媒体数据部分组合。 因此，一个方法是游离缺失盘用于播放多媒体文件包括分析所述多媒体文件以识别未加密的元数据部分; 使用未加密的元数据部分，以定位感兴趣的媒体文件中的位置，在具有相关联加密的媒体数据部分关注位置; 并且，解密所述相关联的加密的媒体数据部分。 用于执行gibt光盘的游离缺失的方法的装置。

    CONTENT MANAGEMENT IN PEER-TO-PEER SYSTEMS
    9.
    发明公开
    CONTENT MANAGEMENT IN PEER-TO-PEER SYSTEMS 审中-公开
    内容管理对等网络系统

    公开(公告)号：EP2962444A2

    公开(公告)日：2016-01-06

    申请号：EP14710417.8

    申请日：2014-02-18

    申请人： Qualcomm Incorporated

    发明人： AGGARWAL, Pooja ,  LUNDQVIST, Patrik Nils ,  CHIKKAPPA, Kiran Shagle

    IPC分类号： H04L29/08

    CPC分类号： H04L67/104 ,  H04L67/22 ,  H04N21/266 ,  H04N21/41407 ,  H04N21/44222 ,  H04N21/8352

    摘要： Disclosed are methods, systems, apparatus, devices, products, and other implementations, including a method that includes monitoring a plurality of messages from a plurality of mobile devices, each of at least some of the plurality of messages including at least one identifier of at least one content data record, from a plurality of content data records, stored at least on a sending device sending the respective message, and data representative of number of times the at least one content data record was used on the respective sending device. The method also includes determining popularity metrics for one or more content data records from the plurality of content data records based on the data included in each of the at least some of the plurality of messages representative of the number of times the respective at least one content data record was used on the respective sending device.