公开(公告)号：EP1780686A4

公开(公告)日：2012-07-11

申请号：EP05780354

申请日：2005-08-19

Applicant: PANASONIC CORP

Inventor： OKAMOTO RYUICHI ,  NAKAHARA TOHRU ,  MIURA KOUJI ,  YAMAMOTO MASAYA ,  IGARASHI MASAKI ,  TOKUDA KATSUMI

IPC: G06F21/24 ,  H04L9/08 ,  H04N7/167

CPC classification number: H04N7/1675 ,  H04L9/0894 ,  H04L2209/56 ,  H04L2209/603 ,  H04N21/2541 ,  H04N21/2543 ,  H04N21/42684 ,  H04N21/4405 ,  H04N21/6334 ,  H04N21/63345 ,  H04N21/8352 ,  H04N21/8355

Abstract: When a secure counter malfunction detection unit 212 deters a malfunction in a secure counter 211, a content playability judgment unit 206 performs a content playability judgment based on information managed by a malfunctioning-state playback processing management unit 214. The malfunctioning-state playback processing management unit 214 stores a malfunctioning-state playback condition composed of information such as a playback count and a playback time. The content playability judgment unit 206 judges that content is playable when the malfunctioning-state playback condition is met, and a content playback unit 210 splays the content.

公开(公告)号：EP1684222A4

公开(公告)日：2012-01-11

申请号：EP04818542

申请日：2004-11-15

Applicant: SONY CORP ,  PANASONIC CORP

Inventor： KITAHARA JUN ,  YAMASHITA MASAMI ,  ITO TETSUNORI ,  YAMAMOTO MASAYA ,  ONODA SEN ICHI ,  MURAKAMI HIROKI

IPC: G06F21/00 ,  H04N7/16 ,  G06Q30/06 ,  G06Q50/00 ,  G06Q50/10 ,  H04L9/08 ,  H04N21/2347 ,  H04N21/266 ,  H04N21/4623

CPC classification number: H04N21/8355 ,  G06F21/10 ,  H04N21/4627

Abstract: The present invention is directed to an information processing apparatus adapted for processing contents provided by contents distribution service. To contents distributed by a contents server (12), a sublicense which prescribes utilization conditions of the respective contents is added. From a license server (13), a main license which prescribes utilization condition of the entirety of contents distributed via channel that user contracts is provided. When it is instructed that contents are reproduced, reproduction of contents is permitted at a receiver (15) in the case where utilization conditions prescribed by the sublicense and the main license are both satisfied.

公开(公告)号：EP1612990A4

公开(公告)日：2011-06-01

申请号：EP04719621

申请日：2004-03-11

Applicant: PANASONIC CORP

Inventor： FUTA YUICHI ,  OHMORI MOTOJI ,  YAMAMOTO MASAYA ,  TATEBAYASHI MAKOTO ,  YAMAMICHI MASATO

IPC: G11B20/00 ,  G06F12/14 ,  G06F15/00 ,  G11B20/10 ,  H04L9/08 ,  H04L9/32

CPC classification number: H04N21/4325 ,  G11B20/00086 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00362 ,  G11B20/00492 ,  H04N21/26613 ,  H04N21/835

公开(公告)号：EP1603045A4

公开(公告)日：2009-01-21

申请号：EP04714030

申请日：2004-02-24

Applicant: PANASONIC CORP

Inventor： NAKAHARA TOHRU ,  YAMAMOTO MASAYA ,  MIURA KOUJI

IPC: G06F12/14 ,  G06F12/00 ,  G06F21/10 ,  H04L9/10 ,  H04N7/16

CPC classification number: H04N21/4627 ,  G06F21/10 ,  G06F2221/0706 ,  H04N7/163

Abstract: A terminal device (300) appropriately liming license use in each terminal device (300) includes: a license storage section (312) for holding a license enabling use of a content as a digital work while correlating it to domain identification information indicating one of a plurality of domains; a domain judgment section (303) used when the domain to which another terminal device (300) belongs is different from the domain indicated by the domain identification information, for inhibiting the use of the license by the aforementioned another terminal device (300); and a license processing result transmission section (305).

公开(公告)号：EP3226462A4

公开(公告)日：2018-07-11

申请号：EP15863418

申请日：2015-11-20

Applicant: SONY CORP ,  PANASONIC CORP

Inventor： UEDA KENJIRO ,  OISHI TATEO ,  UCHIMURA KOUICHI ,  YAMAMOTO MASAYA ,  MURASE KAORU ,  YAHATA HIROSHI

IPC: G11B20/00 ,  G11B20/12 ,  H04L9/08

CPC classification number: G11B20/00492 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/1217 ,  H04L9/0816 ,  H04L9/0822 ,  H04L2209/24 ,  H04L2209/603 ,  H04L2209/608

Abstract: [Object] To generate content in which it is possible to analyze a source of illegally copied content or the like, and make normal reproduction possible without a pause in reproduction in a reproduction device. [Solution] Content including an individual segment region formed of a plurality of variation data in which identification information different from each other is embedded and each of which can be decrypted by a different key, and a common segment region is used. The variation data is formed of a 6144-byte aligned unit. A reproduction device calculates a reproduction path by applying a device key, and selects an aligned unit corresponding to the reproduction path from an aligned unit configuring variation data in an individual segment region, and then, executes decryption and reproduction processing.

公开(公告)号：EP1603051A4

公开(公告)日：2012-01-18

申请号：EP04705489

申请日：2004-01-27

Applicant: PANASONIC CORP

Inventor： MIURA KOUJI ,  YAMAMOTO MASAYA ,  TOKUDA KATSUMI

IPC: G06F21/10 ,  G06Q30/00 ,  G06F15/00 ,  G06F17/60

CPC classification number: H04L63/10 ,  G06F21/10 ,  G06F2221/0795 ,  G06Q20/367 ,  G06Q30/02 ,  H04L2463/101

公开(公告)号：EP2068320A4

公开(公告)日：2010-12-01

申请号：EP07850388

申请日：2007-12-11

Applicant: PANASONIC CORP

Inventor： NAKANO TOSHIHISA ,  HARADA SHUNJI ,  YAMAMOTO MASAYA ,  MURASE KAORU

IPC: G06F21/24 ,  G11B20/00

CPC classification number: G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00282 ,  G11B20/00304 ,  G11B20/00362 ,  G11B20/00427 ,  G11B20/00731 ,  G11B20/1217 ,  G11B2220/2541 ,  G11B2220/2562 ,  G11B2220/2579

公开(公告)号：EP2211347A4

公开(公告)日：2011-12-21

申请号：EP08843703

申请日：2008-10-29

Applicant: PANASONIC CORP

Inventor： SASAKI TAIJI ,  NAGATA MINEHISA ,  YAMAMOTO MASAYA ,  YAMAGUCHI TAKAHIRO

IPC: G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  H04N5/76 ,  H04N5/85 ,  H04N5/913 ,  H04N5/93 ,  H04N9/804

CPC classification number: H04N5/913 ,  G11B27/005 ,  G11B27/105 ,  G11B27/323 ,  G11B2220/2541 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205 ,  H04N9/8211 ,  H04N9/8227 ,  H04N2005/91357

公开(公告)号：EP1868196A4

公开(公告)日：2009-11-11

申请号：EP06728672

申请日：2006-03-07

Applicant: PANASONIC CORP

Inventor： NONAKA MASAO ,  OHMORI MOTOJI ,  YAMAUCHI KAZUHIKO ,  FUJIOKA SOICHIRO ,  YAMAMOTO MASAYA

IPC: G11B20/10 ,  G06F21/00 ,  H04N5/765 ,  H04N5/85

CPC classification number: H04N9/8205 ,  G06F21/10 ,  G06F2221/2111 ,  G06F2221/2137 ,  G06F2221/2141 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00695 ,  G11B20/00739 ,  G11B20/00869 ,  G11B27/10 ,  G11B27/105 ,  G11B27/11 ,  G11B2220/213 ,  G11B2220/2541 ,  H04N5/85 ,  H04N7/17318 ,  H04N21/25841 ,  H04N21/4627 ,  H04N21/6581 ,  H04N21/8355

公开(公告)号：EP2544121A4

公开(公告)日：2014-10-08

申请号：EP11750381

申请日：2011-03-02

Applicant: PANASONIC CORP

Inventor： YAMAGUCHI TAKAHIRO ,  YAMAMOTO MASAYA

IPC: G06F21/10

CPC classification number: G06F12/1408 ,  G06F17/00 ,  G06F21/10 ,  G06F2221/0704 ,  H04L9/08

Abstract: The present invention is a controller capable of preventing card makers from conducting unauthorized acts. The controller includes: a controller key storage unit 511 configured to hold a controller key that has been generated by a controller manufacturing device in advance; a decryption unit 522 configured to receive encrypted media key information that has been generated by a key issuance center that is authorized and to decrypt the received encrypted media key by using the controller key, the encrypted key information generated through encryption of key information with use of the controller key; and an encryption unit 526 configured to encrypt the decrypted media key again by using an individual key that is unique to the controller.