Source: http://www.google.com/patents/US6463151?dq=5708422
Timestamp: 2014-09-16 17:41:44
Document Index: 322538340

Matched Legal Cases: ['art 1', 'art 2', 'art 3', 'art 4', 'art 5', 'art 1', 'art 2', 'art 3', 'art 4', 'art 5']

Patent US6463151 - Data transmission method, data receiving method, data transmission system ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsThe data transmission system can substantially prohibit illegal copy of real data since the encryption key applied to transmitted data is changed depending on copy management information, thereby the real data being decrypted and recorded with a key different from the original key when the copy management...http://www.google.com/patents/US6463151?utm_source=gb-gplus-sharePatent US6463151 - Data transmission method, data receiving method, data transmission system and program recording mediumAdvanced Patent SearchPublication numberUS6463151 B1Publication typeGrantApplication numberUS 09/182,568Publication dateOct 8, 2002Filing dateOct 29, 1998Priority dateOct 29, 1997Fee statusPaidAlso published asCN1215952A, CN1222133C, DE69831205D1, DE69831205T2, EP0913975A2, EP0913975A3, EP0913975B1Publication number09182568, 182568, US 6463151 B1, US 6463151B1, US-B1-6463151, US6463151 B1, US6463151B1InventorsHiroyuki Iitsuka, Masazumi Yamada, Hideaki Takechi, Natsume MatsuzakiOriginal AssigneeMatsushita Electric Industrial Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (3), Non-Patent Citations (11), Referenced by (16), Classifications (13), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetData transmission method, data receiving method, data transmission system and program recording mediumUS 6463151 B1Abstract The data transmission system can substantially prohibit illegal copy of real data since the encryption key applied to transmitted data is changed depending on copy management information, thereby the real data being decrypted and recorded with a key different from the original key when the copy management information is tampered. Thus, the transmitted data can be further securely protected than in the prior art.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5974140 *Jun 24, 1996Oct 26, 1999Matsushita Electric Industrial Co., Ltd.Information carrier and recording and/or reproducing apparatus and/or initializing apparatusUS5987126 *Mar 13, 1998Nov 16, 1999Kabushiki Kaisha ToshibaDevice having a digital interface and a network system using such a device and a copy protection methodUS6185687 *Aug 19, 1999Feb 6, 2001Sony CorporationSignal reproducing/recording/transmitting method and apparatus and signal record medium* Cited by examinerNon-Patent CitationsReference1"IEC 61883-1: Consumer Audio/Video Equipment-Digital Interface-Part 1: General", International Electronical Commission, Circulated Sep. 26, 1997, 100C/182/FDIS.2"IEC 61883-2: Consumer Audio/Video Equipment-Digital Interface-Part 2: SD-DVCR Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/183/FDIS.3"IEC 61883-3: Consumer Audio/Video Equipment-Digital Interface-Part 3: HD-DVCR Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/184/FDIS.4"IEC 61883-4: Consumer Audio/Video Equipment-Digital Interface-Part 4: MPEG2-TS Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/185/FDIS.5"IEC 61883-5: Consumer Audio/Video Equipment-Digital Interface-Part 5: SDL-DVCR Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/186/FDIS.6"IEEE Standard For A High Performance Serial Bus", The Institute of Electical and Electronics Engineers, Inc. pp. 19-47, 142-163, 210-217, copyright 1996.7"IEC 61883-1: Consumer Audio/Video Equipment�Digital Interface-Part 1: General", International Electronical Commission, Circulated Sep. 26, 1997, 100C/182/FDIS.8"IEC 61883-2: Consumer Audio/Video Equipment�Digital Interface�Part 2: SD-DVCR Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/183/FDIS.9"IEC 61883-3: Consumer Audio/Video Equipment�Digital Interface�Part 3: HD-DVCR Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/184/FDIS.10"IEC 61883-4: Consumer Audio/Video Equipment�Digital Interface�Part 4: MPEG2-TS Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/185/FDIS.11"IEC 61883-5: Consumer Audio/Video Equipment�Digital Interface�Part 5: SDL-DVCR Data Transmission", International Electronical Commission, Circulated Sep. 26, 1997, 100C/186/FDIS.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS6728379 *Jun 28, 1999Apr 27, 2004Sony CorporationInformation processor and information processing methodUS6915435 *Feb 9, 2000Jul 5, 2005Sun Microsystems, Inc.Method and system for managing information retentionUS6937599 *Oct 18, 2000Aug 30, 2005Matsushita Electric Industrial Co., Ltd.Data source, data conversion device, inverse data conversion device, auxiliary data file generation device, reception method, medium and information aggregateUS6965995 *Nov 18, 1999Nov 15, 2005Sony CorporationSignal processing circuitUS6975730 *Dec 1, 2000Dec 13, 2005Victor Company Of Japan, Ltd.Method and apparatus for contents informationUS7099846 *Apr 7, 2000Aug 29, 2006Sony CorporationApparatus and system for providing fee-based contentUS7117365 *Dec 15, 1999Oct 3, 2006Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.Method and device for generating a data stream and method and device for playing back a data streamUS7181008 *Jul 6, 2000Feb 20, 2007Kabushiki Kaisha ToshibaContents management method, content management apparatus, and recording mediumUS7246234 *Aug 18, 2000Jul 17, 2007Sony CorporationTransmitter device, transmitting method, receiver device, receiving method, communication system, and program storage mediumUS7272228Jun 12, 2003Sep 18, 2007International Business Machines CorporationSystem and method for securing code and ensuring proper execution using state-based encryptionUS7290148 *Jan 29, 2003Oct 30, 2007Renesas Technology Corp.Encryption and decryption communication semiconductor device and recording/reproducing apparatusUS7409480 *Nov 25, 2002Aug 5, 2008Sony CorporationElectronic equipment, method of receiving data, method of transmitting data, method of setting channel and method of grouping electronic equipment into channelsUS7505584Apr 19, 2006Mar 17, 2009Kabushiki Kaisha ToshibaContents management method, contents management apparatus, and recording mediumUS7522726Aug 22, 2005Apr 21, 2009Sony CorporationTransmitter device, transmitting method, receiver device, receiving method, communication system, and program storage mediumUS20040172550 *Jan 26, 2004Sep 2, 2004Fujitsu LimitedSecurity system, information management system, encryption support system, and computer program productUS20100287367 *Dec 29, 2008Nov 11, 2010Thomson LicensingSystem and method for data transmission* Cited by examinerClassifications U.S. Classification380/201, 705/57International ClassificationH04L29/06, H04L12/64, H04L12/40Cooperative ClassificationH04L12/40071, H04L12/40104, H04L12/40058, H04L63/0428European ClassificationH04L63/04B, H04L12/40F3, H04L12/40F1, H04L12/40F8Legal EventsDateCodeEventDescriptionMar 20, 2014FPAYFee paymentYear of fee payment: 12Mar 31, 2010FPAYFee paymentYear of fee payment: 8Mar 17, 2006FPAYFee paymentYear of fee payment: 4Oct 29, 1998ASAssignmentOwner name: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:IITSUKA, HIROYUKI;YAMADA, MASAZUMI;TAKECHI, HIDEAKI;AND OTHERS;REEL/FRAME:009563/0151Effective date: 19981001RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google