公开(公告)号：US09167280B2

公开(公告)日：2015-10-20

申请号：US14044847

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Christopher Wingert ,  Pooja Aggarwal

IPC: G06F21/00 ,  H04N21/2347 ,  H04N7/167 ,  H04N21/2389 ,  H04N21/254 ,  H04N21/414 ,  H04N21/4385 ,  H04N21/835 ,  H04N21/84 ,  H04N21/845 ,  H04N21/854 ,  H04N21/235 ,  H04N21/435 ,  G06F21/60

CPC classification number: 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

Abstract: 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.

Abstract translation: 公开了一种加密多媒体文件的方法，包括解析多媒体文件以识别媒体数据部分; 加密媒体数据部分; 以及将加密的媒体数据部分与未加密的非媒体数据部分组合。 还公开了播放多媒体文件的方法，包括解析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来定位媒体文件中感兴趣的位置，感兴趣的位置具有相关联的加密媒体数据部分; 以及解密相关联的加密媒体数据部分。 本文还公开了一种用于执行该方法的装置。

公开(公告)号：US20140033247A1

公开(公告)日：2014-01-30

申请号：US14044847

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Christopher Wingert ,  Pooja Aggarwal

IPC: H04N21/2347 ,  H04N21/435 ,  H04N21/235

CPC classification number: 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

Abstract: 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.

Abstract translation: 公开了一种加密多媒体文件的方法，包括解析多媒体文件以识别媒体数据部分; 加密媒体数据部分; 以及将加密的媒体数据部分与未加密的非媒体数据部分组合。 还公开了播放多媒体文件的方法，包括解析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来定位媒体文件中感兴趣的位置，感兴趣的位置具有相关联的加密媒体数据部分; 以及解密相关联的加密媒体数据部分。 本文还公开了一种用于执行该方法的装置。