专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070206799A1 Efficient key hierarchy for delivery of multimedia content 失效
标题翻译：提供多媒体内容的高效密钥层次结构
公开(公告)号：US20070206799A1
公开(公告)日：2007-09-06
申请号：US11511736
申请日：2006-08-28
申请人： Christopher Wingert , Pooja Aggarwal
发明人： Christopher Wingert , Pooja Aggarwal
IPC分类号： H04N7/16 , G06F12/14 , H04L9/00 , H04L9/32 , G06F17/30 , G06F11/30 , G06F7/04 , H04K1/00 , G06K9/00 , H03M1/68
CPC分类号： H04L63/06 , G06F21/10 , H04L9/0822 , H04L9/0825 , H04L63/045 , H04L2209/603 , H04N7/1675 , H04N7/17318 , H04N21/2347 , H04N21/4405 , H04N21/4627 , H04N21/63775 , H04N21/8355
摘要： A Digital Rights Management (DRM) system provides a lightweight layering of encryption and decryption of keys that allows efficient use of different cryptographic techniques to effect the secure delivery of multimedia content. Asymmetric cryptography, where a public key is used to encrypt information that can only be decrypted by a matched private key, is used by the DRM system to deliver symmetric keys securely.
摘要翻译：数字版权管理（DRM）系统提供轻量级的密钥加密和解密分层，其允许有效地使用不同的加密技术来实现多媒体内容的安全传递。不对称密码术，其中公钥用于加密只能由匹配的私钥解密的信息，被DRM系统用于安全地传送对称密钥。

2. 发明授权

US08397164B2 Apparatus and method for loading media in a digital cinema system 有权
公开(公告)号：US08397164B2
公开(公告)日：2013-03-12
申请号：US09798368
申请日：2001-03-02
申请人： Jesse Hose , Carl Andrew Mueller , Vijaya Kumar Janjanam , Christopher Wingert
发明人： Jesse Hose , Carl Andrew Mueller , Vijaya Kumar Janjanam , Christopher Wingert
IPC分类号： G06F3/048
CPC分类号： A63J25/00
摘要： An apparatus and method for loading media in a digital cinema system is described. Specifically, the digital cinema system has a received storage medium and a local storage medium. A user is prompted to present the received storage medium. Responsive to the user specifying the received storage medium, a list of image programs is displayed. Responsive to the user specifying the image program, a list of audio programs is displayed. Responsive to the user specifying the audio program, how much storage space is required to store the selected image program and audio program on the local storage medium is determined. If the storage space required on the local storage medium is insufficient to load the selected image and audio programs, a warning indicative of insufficient storage space is displayed. Each selected program is then authenticated.

3. 发明申请

US20070291944A1 METHODS AND SYSTEMS FOR BLACKOUT PROVISIONING IN A DISTRIBUTION NETWORK 有权
标题翻译：分布式网络中BLACKOUT提供的方法和系统
公开(公告)号：US20070291944A1
公开(公告)日：2007-12-20
申请号：US11744180
申请日：2007-05-03
申请人： Christopher Wingert , Pooja Aggarwal , Philip Hawkes
发明人： Christopher Wingert , Pooja Aggarwal , Philip Hawkes
IPC分类号： H04K1/00
CPC分类号： H04L63/0428 , H04L9/0822 , H04L63/10 , H04L2209/60
摘要： Methods and systems for blackout provisioning in a communication network. In an aspect, a method is provided for blackout provisioning in a distribution network. The method includes determining one or more affected regions, and generating a blackout key based an original key and the affected regions. The method also includes encrypting content with the blackout key to produce encrypted content, and transmitting the encrypted content and an encrypted version of the original key over the distribution network. An apparatus is provided for blackout provisioning that includes provisioning logic to determine one or more affected regions, a key generator to generate a blackout key based an original key and the affected regions, encryption logic to encrypt content with the blackout key to produce encrypted content, and a transmitter to transmit the encrypted content and an encrypted version of the original key over the distribution network.
摘要翻译：在通信网络中停电配置的方法和系统。在一方面，提供了一种用于分配网络中的中断供应的方法。该方法包括确定一个或多个受影响的区域，以及基于原始密钥和受影响区域生成停电密钥。该方法还包括用停电密钥加密内容以产生加密的内容，以及通过分发网络发送加密的内容和原始密钥的加密版本。提供一种用于中断供应的装置，其包括用于确定一个或多个受影响区域的供应逻辑，基于原始密钥和受影响区域生成中断密钥的密钥发生器，用于断开密钥加密内容以产生加密内容的加密逻辑，以及发送器，用于在分发网络上传送加密的内容和原始密钥的加密版本。

4. 发明授权

US07203319B2 Apparatus and method for installing a decryption key 有权
标题翻译：用于安装解密密钥的装置和方法
公开(公告)号：US07203319B2
公开(公告)日：2007-04-10
申请号：US09902173
申请日：2001-07-09
申请人： Liat Ben-Zur , Curtis D. Mursfeldt , Christopher Wingert , Paul Pomes , Jesse Hose , Ann C. Irvine , Senthil Govindaswamy
发明人： Liat Ben-Zur , Curtis D. Mursfeldt , Christopher Wingert , Paul Pomes , Jesse Hose , Ann C. Irvine , Senthil Govindaswamy
IPC分类号： H04L9/00
CPC分类号： H04N7/162 , H04N7/1675 , H04N21/41415
摘要： An apparatus for installing a decryption key is initially arranged so that a decryption algorithm received by a control processor is passed via a first interface path to a decryption processor. The algorithm is installed in the decryption processor together with a program decryption key. The apparatus is subsequently arranged so that encrypted working decryption keys received by the control processor are passed on to the decryption processor over the first interface path. The decryption processor decrypts the encrypted keys using the program decryption key. Decryption keys are thus obtained and are transferred via a second interface path to decryptors for use in decrypting encrypted program signals input to the decryptors.
摘要翻译：最初安排用于安装解密密钥的装置，使得由控制处理器接收的解密算法经由第一接口路径被传递到解密处理器。该算法与程序解密密钥一起安装在解密处理器中。该装置随后被布置成使得由控制处理器接收的加密的工作解密密钥通过第一接口路径被传递到解密处理器。解密处理器使用程序解密密钥解密加密密钥。因此获得解密密钥，并且经由第二接口路径传送到解密器，以用于解密输入到解密器的加密程序信号。

5. 发明申请

US20070016802A1 Method and apparatus for encrypting/decrypting multimedia content to allow random access 有权
标题翻译：用于加密/解密多媒体内容以允许随机访问的方法和装置
公开(公告)号：US20070016802A1
公开(公告)日：2007-01-18
申请号：US11182088
申请日：2005-07-14
申请人： Christopher Wingert , Pooja Aggarwal
发明人： Christopher Wingert , Pooja Aggarwal
IPC分类号： G06F12/14
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：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。

6. 发明申请

US20060013401A1 Method and apparatus for delivering keys 有权
标题翻译：传送钥匙的方法和装置
公开(公告)号：US20060013401A1
公开(公告)日：2006-01-19
申请号：US11182087
申请日：2005-07-14
申请人： Christopher Wingert
发明人： Christopher Wingert
IPC分类号： H04L9/00
CPC分类号： H04L63/068 , H04L9/08 , H04L9/0816 , H04L9/0819 , H04L63/0428 , H04L63/062 , H04L63/083 , H04L63/10 , H04L2463/101 , H04W12/04
摘要： The present invention encompasses an electronic device, such as a server, which may be operated in a communication system. The electronic device comprises a method for receiving a request from another electronic device to transmit keys, for example a mobile terminal. Responsive to the request, the server generates the required keys and determines a best time to send the keys to the mobile client device such that a new connection is not required just for sending the requested keys. The best time to send the keys may be during a scheduled connection for sending non-key data, for example a connection setup for transmitting system parameters, content data, etc. By sending the keys along with the non-key data, a need for a special connection is avoided.
摘要翻译：本发明包括可以在通信系统中操作的诸如服务器的电子设备。电子设备包括用于从另一电子设备接收发送密钥的请求的方法，例如移动终端。响应于该请求，服务器生成所需的密钥并且确定将密钥发送到移动客户端设备的最佳时间，使得不需要新的连接仅用于发送所请求的密钥。发送密钥的最佳时间可以是在用于发送非密钥数据的预定连接期间，例如用于发送系统参数的连接设置，内容数据等。通过与非密钥数据一起发送密钥，需要避免了特殊的连接。

7. 发明申请

US20070260881A1 FILE DECRYPTION INTERFACE 有权
标题翻译：文件分解界面
公开(公告)号：US20070260881A1
公开(公告)日：2007-11-08
申请号：US11692099
申请日：2007-03-27
申请人： Maksim Krasnyanskiy , Christopher Wingert , Pooja Aggarwal
发明人： Maksim Krasnyanskiy , Christopher Wingert , Pooja Aggarwal
IPC分类号： H04L9/00
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 applications.
摘要翻译：描述了在无线通信环境中促进数字权限管理的系统和方法。通常，可以将内容（例如，数据文件，视频图像等）下载并保持在其加密状态，以确保数字权利的保护。因此，利用这样的内容的编程应用程序在使用时对内容进行解密（例如，回放或访问）。可以提供允许应用程序使用标准化文件I / O接口访问加密内容的文件接口。内容的解密对于使用加密内容的各个应用来说可以是透明的。因此，修改密码算法或程序以及密钥大小的变化不必影响编程应用。

8. 发明授权

US08677504B2 Method and apparatus for encrypting/decrypting multimedia content to allow random access 有权
标题翻译：用于加密/解密多媒体内容以允许随机访问的方法和装置
公开(公告)号：US08677504B2
公开(公告)日：2014-03-18
申请号：US11182088
申请日：2005-07-14
申请人： Christopher Wingert , Pooja Aggarwal
发明人： Christopher Wingert , Pooja Aggarwal
IPC分类号： G06F21/00
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：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式