Content protection method, and information recording and reproduction apparatus using the same

Content protection method, and information recording and reproduction apparatus using the same

In content protection method and apparatus, a title key invalidation information is generated for invalidating a title key corresponding to a content in a medium and a content key is generated from the title key and the title key invalidation information. The content is encrypted based on the conten...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI
description In content protection method and apparatus, a title key invalidation information is generated for invalidating a title key corresponding to a content in a medium and a content key is generated from the title key and the title key invalidation information. The content is encrypted based on the content key. The title key invalidation information is changed in case of removing or moving the content from the medium and the changed title key invalidation information is stored in the medium. Therefore, the content is prevented from being replicated while enabling the content to be reproduced in another medium.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN1832004A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN1832004A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN1832004A3</originalsourceid><addsrcrecordid>eNqFizEOwjAMRbMwIOAM-AAgFcrQFUUgJiZmKitxaSRiR4lzf6CwM33p_ffm5m6FlVghZVFyGoQhko7iN4DsIfAgOeLEMznJPvBjejK9E1-_CaaEGbUWqOUj6EhQMNLSzAZ8Flr9dmHW59PNXraUpKeS0BGT9va669p90xyO7X_jBalaPFk</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Content protection method, and information recording and reproduction apparatus using the same</title><source>esp@cenet</source><creator>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</creator><creatorcontrib>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</creatorcontrib><description>In content protection method and apparatus, a title key invalidation information is generated for invalidating a title key corresponding to a content in a medium and a content key is generated from the title key and the title key invalidation information. The content is encrypted based on the content key. The title key invalidation information is changed in case of removing or moving the content from the medium and the changed title key invalidation information is stored in the medium. Therefore, the content is prevented from being replicated while enabling the content to be reproduced in another medium.</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20060913&amp;DB=EPODOC&amp;CC=CN&amp;NR=1832004A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20060913&amp;DB=EPODOC&amp;CC=CN&amp;NR=1832004A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</creatorcontrib><title>Content protection method, and information recording and reproduction apparatus using the same</title><description>In content protection method and apparatus, a title key invalidation information is generated for invalidating a title key corresponding to a content in a medium and a content key is generated from the title key and the title key invalidation information. The content is encrypted based on the content key. The title key invalidation information is changed in case of removing or moving the content from the medium and the changed title key invalidation information is stored in the medium. Therefore, the content is prevented from being replicated while enabling the content to be reproduced in another medium.</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFizEOwjAMRbMwIOAM-AAgFcrQFUUgJiZmKitxaSRiR4lzf6CwM33p_ffm5m6FlVghZVFyGoQhko7iN4DsIfAgOeLEMznJPvBjejK9E1-_CaaEGbUWqOUj6EhQMNLSzAZ8Flr9dmHW59PNXraUpKeS0BGT9va669p90xyO7X_jBalaPFk</recordid><startdate>20060913</startdate><enddate>20060913</enddate><creator>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</creator><scope>EVB</scope></search><sort><creationdate>20060913</creationdate><title>Content protection method, and information recording and reproduction apparatus using the same</title><author>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN1832004A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2006</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKAMURA YOSHIMITSU,TOMINAGA KIYOSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Content protection method, and information recording and reproduction apparatus using the same</title><date>2006-09-13</date><risdate>2006</risdate><abstract>In content protection method and apparatus, a title key invalidation information is generated for invalidating a title key corresponding to a content in a medium and a content key is generated from the title key and the title key invalidation information. The content is encrypted based on the content key. The title key invalidation information is changed in case of removing or moving the content from the medium and the changed title key invalidation information is stored in the medium. Therefore, the content is prevented from being replicated while enabling the content to be reproduced in another medium.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_CN1832004A
source esp@cenet
subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Content protection method, and information recording and reproduction apparatus using the same
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-07T09%3A21%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=NAKAMURA%20YOSHIMITSU,TOMINAGA%20KIYOSHI&rft.date=2006-09-13&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN1832004A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true