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1. (WO2019043987) CONTENT RECORDING DEVICE, CONTENT EDITING DEVICE, CONTENT REPRODUCTION DEVICE, CONTENT RECORDING METHOD, CONTENT EDITING METHOD, AND CONTENT REPRODUCTION METHOD METHOD
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Pub. No.: WO/2019/043987 International Application No.: PCT/JP2018/004509
Publication Date: 07.03.2019 International Filing Date: 09.02.2018
IPC:
G09C 1/00 (2006.01) ,G06F 21/60 (2013.01)
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
C
CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
1
Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60
Protecting data
Applicants:
パナソニックIPマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP/JP]; 大阪府大阪市中央区城見2丁目1番61号 1-61, Shiromi 2-chome, Chuo-ku, Osaka-shi, Osaka 5406207, JP
Inventors:
福島 俊之 FUKUSHIMA Toshiyuki; --
中谷 徳夫 NAKATANI Tokuo; --
榎 信行 ENOKI Nobuyuki; --
持永 和寛 MOCHINAGA Kazuhiro; --
山本 雅哉 YAMAMOTO Masaya; --
Agent:
鎌田 健司 KAMATA Kenji; JP
前田 浩夫 MAEDA Hiroo; JP
Priority Data:
62/55339001.09.2017US
Title (EN) CONTENT RECORDING DEVICE, CONTENT EDITING DEVICE, CONTENT REPRODUCTION DEVICE, CONTENT RECORDING METHOD, CONTENT EDITING METHOD, AND CONTENT REPRODUCTION METHOD METHOD
(FR) DISPOSITIF D'ENREGISTREMENT DE CONTENU, DISPOSITIF D'ÉDITION DE CONTENU, DISPOSITIF DE REPRODUCTION DE CONTENU, PROCÉDÉ D'ENREGISTREMENT DE CONTENU, PROCÉDÉ D'ÉDITION DE CONTENU ET PROCÉDÉ DE REPRODUCTION DE CONTENU
(JA) コンテンツ記録装置、コンテンツ編集装置、コンテンツ再生装置、コンテンツ記録方法、コンテンツ編集方法、および、コンテンツ再生方法
Abstract:
(EN) A content recording device (401) is provided with an acquisition unit (411) for acquiring content that has a variable-length packet structure, an encryption unit (412) for encrypting the acquired content and thereby generating encrypted data, and a recording unit (413) for recording the generated encrypted data in a recording medium in fixed-length block units. The encrypted data includes an invalidated area that is not needed for content reproduction, and the recording unit (413) records the size of the invalidated area in the recording medium.
(FR) L’invention concerne un dispositif d'enregistrement de contenu (401) comprenant : une unité d'acquisition (411) permettant d’acquérir un contenu qui possède une structure de paquet de longueur variable ; une unité de chiffrement (412) permettant de chiffrer le contenu acquis et de générer ainsi des données chiffrées ; et une unité d'enregistrement (413) permettant d’enregistrer les données chiffrées générées dans un support d'enregistrement dans des unités de bloc de longueur fixe. Les données chiffrées comprennent une zone invalidée qui n'est pas requise pour la reproduction de contenu, et l'unité d'enregistrement (413) enregistre la taille de la zone invalidée dans le support d'enregistrement.
(JA) コンテンツ記録装置(401)は、可変長パケット構造を有するコンテンツを取得する取得部(411)と、取得されたコンテンツを暗号化することにより暗号化データを生成する暗号化部(412)と、生成された暗号化データを固定長のブロック単位で記録媒体に記録する記録部(413)とを備える。暗号化データには、コンテンツの再生に不要な無効化領域が含まれ、記録部(413)は、無効化領域のサイズを記録媒体に記録する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)