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1. 发明申请

US20080250144A1 METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION OF CONTENT DATA 有权
标题翻译：用于控制内容传输的方法和装置
公开(公告)号：US20080250144A1
公开(公告)日：2008-10-09
申请号：US12026654
申请日：2008-02-06
申请人： Sang-su CHOI , Yang-Lim CHOI , Jun-bum SHIN , So-young LEE , Sun-Nam LEE , Ji-young MOON
发明人： Sang-su CHOI , Yang-Lim CHOI , Jun-bum SHIN , So-young LEE , Sun-Nam LEE , Ji-young MOON
IPC分类号： G06F15/16
CPC分类号： H04L63/061 , H04L43/0858 , H04L63/08 , H04L63/10 , H04L63/12 , H04L63/18 , H04L67/141 , H04L67/32 , H04L67/42 , H04L69/324 , H04W12/04 , H04W64/00
摘要： Provided are a method and apparatus for controlling transmission of content data. In the method, a communication channel is initially established to transmit the content data, the content data is transmitted through the established communication channel, verification is performed a plurality of times to determine whether the content data is transmitted within an acceptable transmission range, and whether to continue the transmission of the content data is determined according to the verification result. Accordingly, when a client moves to a location outside a predetermined acceptable transmission range in a wireless environment, a server stops transmission of the content data. In addition, content data can be continuously transmitted regardless of interference caused by a temporary obstacle between a server and a client.
摘要翻译：提供一种用于控制内容数据传输的方法和装置。在该方法中，初始建立通信信道以发送内容数据，通过建立的通信信道发送内容数据，多次执行验证，以确定内容数据是否在可接受的传输范围内发送，以及是否根据验证结果确定内容数据的继续传输。因此，当客户端移动到无线环境中的预定可接受传输范围之外的位置时，服务器停止发送内容数据。此外，无论服务器和客户端之间的临时障碍物引起的干扰如何，都可以连续地发送内容数据。

2. 发明申请

US20090157781A1 METHOD AND APPARATUS FOR GENERATING CONTENT IDENTIFIER AND PREVENTING ALTERATION OF THE CONTENT IDENTIFIER 审中-公开
标题翻译：用于产生内容标识符和防止内容标识符更新的方法和装置
公开(公告)号：US20090157781A1
公开(公告)日：2009-06-18
申请号：US12208632
申请日：2008-09-11
申请人： So-young LEE , Ji-young MOON , Yang-lim CHOI
发明人： So-young LEE , Ji-young MOON , Yang-lim CHOI
IPC分类号： G06F1/02
CPC分类号： G06F21/64 , G06F21/10
摘要： A method and apparatus for generating a content identifier and preventing alteration of the content identifier are provided. The method includes generating at least one random number, generating location information for designating a plurality of locations within a content by using the at least one generated random number, extracting a plurality of parts of the content, which correspond to the generated location information, from the content, generating a integrity verification value based on the extracted parts of the content, which correspond to the generated location information, and generating the content identifier having the integrity verification value and the at least one generated random number.
摘要翻译：提供了一种用于生成内容标识符并防止改变内容标识符的方法和装置。该方法包括生成至少一个随机数，通过使用至少一个生成的随机数来生成用于指定内容中的多个位置的位置信息，从而生成与生成的位置信息相对应的内容的多个部分内容，基于与所生成的位置信息相对应的内容的提取部分生成完整性验证值，以及生成具有完整性验证值和至少一个生成的随机数的内容标识符。

3. 发明申请

US20090052670A1 METHOD AND APPARATUS FOR STORING DIGITAL CONTENT IN STORAGE DEVICE 审中-公开
标题翻译：用于存储存储设备中的数字内容的方法和装置
公开(公告)号：US20090052670A1
公开(公告)日：2009-02-26
申请号：US12194860
申请日：2008-08-20
申请人： Yong-kuk YOU , Chang-sup AHN , So-young LEE , Bong-seon KIM , Ji-young MOON
发明人： Yong-kuk YOU , Chang-sup AHN , So-young LEE , Bong-seon KIM , Ji-young MOON
IPC分类号： H04L9/06
CPC分类号： G06F21/10 , G11B20/00086 , G11B20/0021 , G11B20/00224 , G11B20/00492 , G11B2020/10833 , H04L9/0891 , H04L9/0897
摘要： Disclosed are a method and apparatus for storing digital content in a storage device. A content key, which is a key used by a host for encrypting content when the content is stored to a storage device connected to the host, is encrypted by using a storage key of the storage device. The encrypted content key and encrypted content are stored in the storage device, and the host only stores storage keys. Thus, quantity of information maintained by the host can be reduced. Also, when a storage key is stored in a portable security component (PSC), portability and mobility of content bound to a single host may be improved.
摘要翻译：公开了一种用于将数字内容存储在存储装置中的方法和装置。当内容被存储到连接到主机的存储设备时，主机用于加密内容的内容密钥通过使用存储设备的存储密钥被加密。加密内容密钥和加密内容存储在存储设备中，主机仅存储存储密钥。因此，可以减少由主机维护的信息量。此外，当存储密钥存储在便携式安全组件（PSC）中时，可以改进与单个主机绑定的内容的可移植性和移动性。

4. 发明申请

US20090199303A1 CE DEVICE MANAGEMENT SERVER, METHOD OF ISSUING DRM KEY BY USING CE DEVICE MANAGEMENT SERVER, AND COMPUTER READABLE RECORDING MEDIUM 审中-公开
标题翻译： CE设备管理服务器，通过使用CE设备管理服务器发出DRM密钥的方法和计算机可读记录介质
公开(公告)号：US20090199303A1
公开(公告)日：2009-08-06
申请号：US12274809
申请日：2008-11-20
申请人： Chang-sup AHN , Young-kuk YOU , Jun-bum SHIN , So-young LEE , Ji-young MOON
发明人： Chang-sup AHN , Young-kuk YOU , Jun-bum SHIN , So-young LEE , Ji-young MOON
IPC分类号： H04L9/32
CPC分类号： G06F21/10 , G06F2221/0753 , H04L9/083 , H04L9/0891 , H04L9/3247 , H04L9/3273 , H04L9/3297 , H04L2209/603
摘要： Provided are a method of issuing a DRM (digital rights management) key by using a CE (consumer electronics) device management server. The method includes: authenticating the CE device; if authentication of the CE device succeeds, transmitting a request for issuing the DRM key to a key server for storing and managing the DRM key; receiving the DRM key from the key server; and transmitting the DRM key to the CE device. Thus, the CE device can conveniently and safely receive the DRM key.
摘要翻译：提供了通过使用CE（消费者电子设备）设备管理服务器发布DRM（数字版权管理）密钥的方法。该方法包括：认证CE设备; 如果CE设备的认证成功，则向用于存储和管理DRM密钥的密钥服务器发送发布DRM密钥的请求; 从密钥服务器接收DRM密钥; 并将DRM密钥发送到CE设备。因此，CE设备可以方便和安全地接收DRM密钥。

5. 发明申请

US20110142227A1 METHOD AND APPARATUS FOR ENCODING DATA AND METHOD AND APPARATUS FOR DECODING DATA 审中-公开
标题翻译：用于编码数据的方法和装置以及用于解码数据的方法和装置
公开(公告)号：US20110142227A1
公开(公告)日：2011-06-16
申请号：US12784062
申请日：2010-05-20
申请人： Sun-nam LEE , Hee-jae PARK , So-young LEE , Ji-young MOON , Ki-hun LEE
发明人： Sun-nam LEE , Hee-jae PARK , So-young LEE , Ji-young MOON , Ki-hun LEE
IPC分类号： H04L9/28
CPC分类号： H04L9/3242 , H04L2209/08
摘要： A method and apparatus for encoding data, and a method and apparatus for decoding data. The method of encoding data including generating first encoded data by encoding input data, dividing the first encoded data into a plurality of segments, and generating second encoded data by combining the plurality of segments and dummy data.
摘要翻译：一种用于编码数据的方法和装置，以及用于对数据进行解码的方法和装置。编码数据的方法包括：通过编码输入数据产生第一编码数据，将第一编码数据划分成多个段，并通过组合多个段和伪数据来产生第二编码数据。

6. 发明申请

US20090038007A1 METHOD AND APPARATUS FOR MANAGING CLIENT REVOCATION LIST 审中-公开
标题翻译：管理客户转载清单的方法和装置
公开(公告)号：US20090038007A1
公开(公告)日：2009-02-05
申请号：US12119848
申请日：2008-05-13
申请人： Chang-sup AHN , Yong-kuk YOU , So-young LEE , Bong-seon KIM , Ji-young MOON
发明人： Chang-sup AHN , Yong-kuk YOU , So-young LEE , Bong-seon KIM , Ji-young MOON
IPC分类号： G06F21/00
CPC分类号： G06F21/305 , H04N7/165 , H04N21/2585
摘要： A method and apparatus for managing a client revocation list are provided. The method includes receiving a first client revocation list from a server; and selectively discontinuing an operation of a client, based on the first client revocation list. By doing so, the method and the apparatus can securely control contents.
摘要翻译：提供了一种用于管理客户端撤销列表的方法和装置。该方法包括从服务器接收第一客户端撤销列表; 并且基于第一客户端撤销列表选择性地中止客户端的操作。通过这样做，该方法和装置可以可靠地控制内容。

7. 发明申请

US20080177999A1 CONTENT PROVIDING APPARATUS AND METHOD, CONTENT USING APPARATUS AND METHOD, AND CONTENT PROVIDING APPARATUS AND METHOD FOR REVOKING CONTENT USING APPARATUS 审中-公开
标题翻译：内容提供装置和方法，使用装置和方法的内容以及提供装置的内容和使用装置恢复内容的方法
公开(公告)号：US20080177999A1
公开(公告)日：2008-07-24
申请号：US12017678
申请日：2008-01-22
申请人： Mi-hwa PARK , Myung-sun KIM , Hak-soo JU , Ji-young MOON , Ju-hee SEO
发明人： Mi-hwa PARK , Myung-sun KIM , Hak-soo JU , Ji-young MOON , Ju-hee SEO
IPC分类号： H04L9/00
CPC分类号： H04L63/12 , G06F21/10 , H04L63/101
摘要： Provided are an apparatus and method for determining the integrity of content in at least one packet of a plurality of packets. A content using apparatus includes a receiver which receives a transport packet including content in at least one packet and a secret set, which includes an integrity check key generated for determining the integrity of the content, and extracts the secret set by processing the transport packet, a storage unit which stores the secret set, a controller which uses the secret set to determine whether each packet having the content maintains integrity, and a data processing unit which processes the at least one packet if the at least one packet is determined to be maintaining integrity. Accordingly, when content is transmitted, the integrity of the content can be checked using only a small amount of transmission data and a small amount of computation.
摘要翻译：提供了一种用于确定多个分组的至少一个分组中的内容的完整性的装置和方法。内容使用装置包括接收包含至少一个分组中的内容的传输分组和秘密集的接收机，其包括为确定内容的完整性而生成的完整性检查密钥，并且通过处理传输分组来提取该秘密集，存储所述秘密集的存储单元，使用所述秘密集来确定具有所述内容的每个分组是否保持完整性的控制器;以及数据处理单元，如果所述至少一个分组被确定为维护，则处理所述至少一个分组诚信因此，当发送内容时，可以仅使用少量的传输数据和少量的计算来检查内容的完整性。

8. 发明申请

US20080201782A1 METHOD AND APPARATUS FOR MANAGING DIGITAL CONTENT 失效
标题翻译：管理数字内容的方法和设备
公开(公告)号：US20080201782A1
公开(公告)日：2008-08-21
申请号：US12014486
申请日：2008-01-15
申请人： Ju-hee SEO , Myung-sun KIM , Hak-soo JU , Ji-young MOON , Mi-hwa PARK
发明人： Ju-hee SEO , Myung-sun KIM , Hak-soo JU , Ji-young MOON , Mi-hwa PARK
IPC分类号： G06F21/00
CPC分类号： G06F21/10 , G06F2221/0742 , G06F2221/2137
摘要： A method and apparatus for managing digital content are provided. The apparatus for managing digital content generated by applying digital rights management (DRM) includes: a content execution unit executing digital content; and a control unit confirming whether or not digital content is in a first period in which the digital content can be normally executed, and controlling the content execution unit so that, if the digital content is in the first period, the digital content can be executed normally, and if the digital content is in a second period which is not in the first period, the digital content can be executed in a manner which can be distinguished from that of execution in the first period. According to the apparatus and method, execution of digital content, which is close to expiration, can be controlled, thereby managing the expiration of the digital content for a user.
摘要翻译：提供了一种用于管理数字内容的方法和装置。用于管理通过应用数字版权管理（DRM）生成的数字内容的装置包括：执行数字内容的内容执行单元; 以及控制单元，确认数字内容是否处于能够正常执行数字内容的第一时段，并且控制内容执行单元，使得如果数字内容处于第一时段，则可以执行数字内容正常情况下，如果数字内容处于不在第一周期的第二周期，则可以以与第一周期中执行的数字内容不同的方式执行数字内容。根据该装置和方法，可以控制接近到期的数字内容的执行，从而管理用户的数字内容的到期。

9. 发明申请

US20090016537A1 METHOD OF AUTHENTICATING AND REPRODUCING CONTENT USING PUBLIC BROADCAST ENCRYPTION AND APPARATUS THEREFOR 审中-公开
标题翻译：使用公共广播加密的认证和复制内容的方法及其设备
公开(公告)号：US20090016537A1
公开(公告)日：2009-01-15
申请号：US12048656
申请日：2008-03-14
申请人： Hak-soo JU , Myung-sun KIM , Ji-young MOON
发明人： Hak-soo JU , Myung-sun KIM , Ji-young MOON
IPC分类号： H04L9/08
CPC分类号： H04N21/25816 , H04H60/15 , H04H60/23 , H04L9/0825 , H04L9/3228 , H04L2209/601 , H04N21/43615 , H04N21/4367 , H04N21/4405 , H04N21/4408
摘要： Provided are a method and apparatus for mutually authenticating devices in a group and reproducing content using public broadcast encryption. The method of authenticating a first device and a second device includes acquiring specific information of the second device from the second device, transmitting data, containing the acquired specific information of the second device and specific information of the first device, by encrypting the data using a broadcast public key of a group to which the second device belongs, and determining whether authentication of the first device succeeds by decrypting the encrypted data by using a private key of the second device. If authentication succeeds, receiving the specific information of the first device, which is encrypted by using a temporary common key by using the decrypted data, and authenticating the second device by decrypting the encrypted specific information of the first device by using the temporary common key.
摘要翻译：提供了一种用于相互认证组中的设备并且使用公共广播加密来再现内容的方法和装置。认证第一设备和第二设备的方法包括从第二设备获取第二设备的特定信息，通过使用以下方式加密数据来发送包含所获取的第二设备的特定信息和第一设备的特定信息的数据第二设备所属的组的广播公开密钥，并且通过使用第二设备的私钥来解密加密数据来确定第一设备的认证是否成功。如果认证成功，则通过使用解密的数据接收通过使用临时公共密钥加密的第一设备的特定信息，并且通过使用临时公共密钥解密第一设备的加密的特定信息来认证第二设备。

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