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1. 发明公开

EP1486069A1 CONTENT PLAYBACK APPARATUS, METHOD, AND PROGRAM, AND KEY MANAGEMENT APPARATUS AND SYSTEM 审中-公开
标题翻译：内容重放设备，方法和程序和设备管理系统及关键
公开(公告)号：EP1486069A1
公开(公告)日：2004-12-15
申请号：EP03712738.8
申请日：2003-03-18
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Ono, Takatoshi,110 Trusty Jimokuji , Kumazaki, Yoji , Yamada, Shigeru , Murakami, Hiroki , Inoue, Tetsuya , Ohmori, Motoji
IPC分类号： H04N7/16 , H04N7/167
CPC分类号： H04N21/42684 , H04N5/913 , H04N7/163 , H04N7/1675 , H04N21/4334 , H04N21/4623 , H04N21/63345
摘要： A key management apparatus which can be used to encrypt/decrypt content data in a content playback device includes a storing unit for storing a secret key, a key information decrypting unit for decrypting encrypted key information and an updating unit operable to update the secret key with an algorithm stored therein, when the decrypted key information is key-updating information. Seed information can be received for use with the algorithm to provide a new secret key, and preliminary trigger information can be used to poll a group of appliances to request key information to determine any duplication of appliances.

2. 发明授权

EP0648055B1 Scrambling system, scrambling apparatus and descrambling apparatus 失效
标题翻译：加密系统，加密设备和解密设备
公开(公告)号：EP0648055B1
公开(公告)日：2000-01-19
申请号：EP94115939.4
申请日：1994-10-10
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Katta, Noboru , Murakami, Hiroki , Ibaraki, Susumu , Nakamura, Seiji
IPC分类号： H04N7/167
CPC分类号： H04N7/1675

3. 发明公开

EP0582122A1 Scramble apparatus and descramble apparatus 失效
标题翻译： Ver- undEntschlüsselungsvorrichtung。
公开(公告)号：EP0582122A1
公开(公告)日：1994-02-09
申请号：EP93111575.2
申请日：1993-07-20
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Katta, Noboru , Murakami, Hiroki , Ibaraki, Susumu , Nakamura, Seiji , Akiyama, Toshihide , Takeno, Hiroshi
IPC分类号： H04N7/167
CPC分类号： H04N7/1675 , H04N19/13 , H04N19/60 , H04N19/91
摘要： A scramble apparatus for scrambling data including a variable length code and a descramble apparatus for descrambling a scrambled signal, and a scramble transmission apparatus comprising the scramble apparatus and the descramble apparatus. A specific code of data is converted into a readable code having a length equal to that of an original code.
摘要翻译：一种用于对包括可变长度码的数据进行加扰的加扰装置和用于对加扰信号进行解扰的解扰装置，以及包括加扰装置和解扰装置的扰频发送装置。特定的数据码被转换成长度等于原始码长度的可读代码。

4. 发明授权

EP1215905B1 Reception apparatus having a storage unit for recording a scrambled broadcast signal and broadcast apparatus for scrambling a signal to be broadcast, and associated methods 有权
标题翻译：与记录单元，接收装置，用于记录用于加密的信号加密的广播信号和广播设备被发射以及相关联的方法
公开(公告)号：EP1215905B1
公开(公告)日：2006-05-17
申请号：EP01310230.6
申请日：2001-12-06
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Fukami, Yukiyasu , Nakahara, Toru , Matsuo, Takashi , Higashi, Akio , Murakami, Hiroki
IPC分类号： H04N7/167 , H04N5/913 , H04H1/00 , H04L9/08 , H04L9/00
CPC分类号： H04N21/43853 , H04H60/14 , H04H60/23 , H04H60/27 , H04N5/76 , H04N5/783 , H04N7/163 , H04N7/1675 , H04N9/8042 , H04N21/4147 , H04N21/4331 , H04N21/4367

5. 发明公开

EP0888008A2 Scramble apparatus and descramble apparatus 失效
标题翻译：加密和解密设备
公开(公告)号：EP0888008A2
公开(公告)日：1998-12-30
申请号：EP98118547.3
申请日：1993-07-20
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Katta, Noboru , Murakami, Hiroki , Ibaraki, Susumu , Nakamura, Seiji , Akiyama, Toshihide , Takeno, Hiroshi
IPC分类号： H04N7/167
CPC分类号： H04N7/1675 , H04N19/13 , H04N19/60 , H04N19/91
摘要： A scramble apparatus for scrambling data including a variable length code and a descramble apparatus for descrambling a scrambled signal, and a scramble transmission apparatus comprising the scramble apparatus and the descramble apparatus. A specific code of data is converted into a readable code having a length equal to that of an original code.

6. 发明公开

EP0648031A2 Audio scrambling system for scrambling and descrambling audio signals 失效
标题翻译： Einrichtung zurVerschlüsselungundEntschlüsselungvon Audiosignalen。
公开(公告)号：EP0648031A2
公开(公告)日：1995-04-12
申请号：EP94115938.6
申请日：1994-10-10
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Ibaraki, Susumu , Katta, Noboru , Nakamura, Seiji , Murakami, Hiroki
IPC分类号： H04K1/02 , H04B1/66
CPC分类号： H04K1/02
摘要： A scrambling system has a scrambling apparatus and a descrambling apparatus for scrambling and descrambling a digital audio signal having a plurality of 16-bit long sample data units. The scrambling apparatus (12) has a detector (221) for detecting, in each sample data unit, a meaningless portion which is a portion including the MSB and a meaningful portion which is a portion including the LSB, and applying scrambling only to the meaningful portion. Since the meaningless portion is not scrambled, no error data will appear in the meaningless portion. Thus, an unexpected abrupt change in sound caused by a bit error in the meaningless portion which has bits with greater weighted value can be avoided.
摘要翻译：加扰系统具有加扰装置和解扰装置，用于对具有多个16位长采样数据单元的数字音频信号进行加扰和解扰。加扰装置（12）具有检测器（221），用于在每个采样数据单元中检测作为包括MSB的部分的无意义部分和作为包括LSB的部分的有意义部分，并且仅将加扰应用于有意义的一部分。由于无意义部分不加扰，所以在无意义部分中不会出现错误数据。因此，可以避免由具有较大加权值的位的无意义部分中的位错误引起的声音的意外突然变化。

7. 发明授权

EP0648031B1 Audio scrambling system for scrambling and descrambling audio signals 失效
标题翻译：装置用于音频信号的编码和解码
公开(公告)号：EP0648031B1
公开(公告)日：2007-08-01
申请号：EP94115938.6
申请日：1994-10-10
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
发明人： Ibaraki, Susumu , Katta, Noboru , Nakamura, Seiji , Murakami, Hiroki
IPC分类号： H04K1/02 , H04B1/66
CPC分类号： H04K1/02

8. 发明授权

EP0888008B1 Scramble apparatus 失效
标题翻译：加密
公开(公告)号：EP0888008B1
公开(公告)日：2002-11-27
申请号：EP98118547.3
申请日：1993-07-20
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Katta, Noboru , Murakami, Hiroki , Ibaraki, Susumu , Nakamura, Seiji , Akiyama, Toshihide , Takeno, Hiroshi
IPC分类号： H04N7/167 , H04N7/30
CPC分类号： H04N7/1675 , H04N19/13 , H04N19/60 , H04N19/91

9. 发明公开

EP1229425A1 Content usage management system and content usage management method 审中-公开
标题翻译：系统和方法zum Verwalten von digitalen Inhalten
公开(公告)号：EP1229425A1
公开(公告)日：2002-08-07
申请号：EP02001970.9
申请日：2002-02-04
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Higashi, Akio , Murakami, Hiroki , Matsuo, Takashi , Nakahara, Tohru , Namba, Takaaki , Goto, Yoshimasa , Nakanishi, Masanori , Miyazaki, Masaya , Kozuka, Masayuki
IPC分类号： G06F1/00
CPC分类号： G06F21/105 , G06F21/10
摘要： A content usage management system 1 comprises a user terminal 200a using a content as a digital production and a server 100 managing usage of the content in the user terminal 200a over a communication network 300; wherein the sever 100 includes a user right information DB 120 that memorizes right information regarding a usage right of the content entitled to a user who uses the terminal 200a and a content information generation unit 170 that generates LT which is right information indicating a part of usage right entitled to the user based upon a request from the user and that sends the LT to the sever terminal 200a; and the user terminal 200a includes a communication unit that receives the LT sent from the server 100 and a license information processing unit 260 that controls usage of the content according to the usage right indicated on the received LT.
摘要翻译：内容使用管理系统1包括使用内容作为数字制作的用户终端200a和通过通信网络300管理用户终端200a中的内容的使用的服务器100; 其中，服务器100包括用户权限信息DB 120，其存储有关使用终端200a的用户的内容的使用权利的正确信息;以及内容信息生成单元170，其生成作为使用的一部分的正确信息的LT 基于来自用户的请求授予用户的权利，并将LT发送到服务器终端200a; 并且用户终端200a包括接收从服务器100发送的LT的通信单元和根据接收到的LT上指示的使用权限来控制内容的使用的许可信息处理单元260。

10. 发明公开

EP0648031A3 Audio scrambling system for scrambling and descrambling audio signals 失效
标题翻译：设备用于编码和音频信号的解码。
公开(公告)号：EP0648031A3
公开(公告)日：1999-04-28
申请号：EP94115938.6
申请日：1994-10-10
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Ibaraki, Susumu , Katta, Noboru , Nakamura, Seiji , Murakami, Hiroki
IPC分类号： H04K1/02 , H04B1/66
CPC分类号： H04K1/02
摘要： A scrambling system has a scrambling apparatus and a descrambling apparatus for scrambling and descrambling a digital audio signal having a plurality of 16-bit long sample data units. The scrambling apparatus (12) has a detector (221) for detecting, in each sample data unit, a meaningless portion which is a portion including the MSB and a meaningful portion which is a portion including the LSB, and applying scrambling only to the meaningful portion. Since the meaningless portion is not scrambled, no error data will appear in the meaningless portion. Thus, an unexpected abrupt change in sound caused by a bit error in the meaningless portion which has bits with greater weighted value can be avoided.

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