摘要:
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.
摘要:
A contents using device (or a terminal device) 300 is composed of: a license processing unit 305 which judges, on the basis of a usage rule of a license, whether or not the content is available; a content reproduction unit 304 which uses the content judged by the terminal device 300 to be available; a restriction unit (or a content reproduction unit 304) which restricts the license corresponding to the contents from being used by another source by reason that the license is currently in use, for a time period between a start and a normal end of the content usage by the content reproduction unit 304; an event detection unit 307 which detects a predetermined event that occurs between the start and the normal end of the content usage and that forcefully aborts the content usage; a restriction-relaxation necessity judgment unit (or a recovery/penalty judgment unit) 309 which judges whether or not the predetermined event is against an intention of a user; and a restriction relaxation unit (or a license recovery unit) 306 which relaxes the restriction on the content usage when the recovery/penalty judgment unit 309 judges that the predetermined event is against the intention of the user.
摘要:
The present invention provides a content reproduction terminal which can be transformed between a general-purpose terminal and a members-only terminal. A content reproduction terminal 30a is composed of: an IC card slot into which a card 20a distributed to a membership user is to be inserted; an application/display-data acquisition unit 304a which sets the operation mode on the basis of a membership certificate 2020 showing a group, to which the user belongs, held previously in the card 20a; and a resident player application execution unit 305a and a member player application execution unit 308a which reproduce the content differently depending on the setting result given by the application/display-data acquisition unit 304a.
摘要:
A user terminal (110) having a license purchase unit (603) obtaining a license (500) indicating a content usable time (502) of a content data (200) composed of a plurality of elements (203), each of which can be replayed individually. The user terminal (110) also having an availability judgment unit (604) judging whether or not encrypted elements (203) included in the content data (200) are available, based on the content usable time (502) indicated in the obtained license (500), and having a replay/display unit (607) replaying the encrypted elements judged as available. In addition, the user terminal (110) having a use status management unit (608) specifying license-consuming elements, each of which consumes an authorized amount of replay under right, out of the elements that are being replayed, and measuring a content used time (504) consumed by replaying the specified license-consuming elements.
摘要:
The user terminal (110) is composed of the following: a license purchase unit (603) for obtaining a license (500) indicating a content usable time (502) of a content data (200) composed of a plurality of elements (203), each of which can be replayed individually; an availability judgment unit (604) for judging whether or not encrypted elements (203) included in the content data (200) are available, based on the content usable time (502) indicated in the obtained license (500); a replay/display unit (607) for replaying the encrypted elements judged as available; and a use status management unit (608) for specifying license-consuming elements, each of which consumes an authorized amount of replay under right, out of the elements that are being replayed, and measuring a content used time (504) consumed by replaying the specified license-consuming elements.
摘要:
The invention relates to power saving in portable terminals (100) with recording media (200). Conventionally, there is the problem that a battery (104) in the portable terminal (100) may become exhausted and as a result the original function of the terminal cannot be performed. To solve this problem, when the remaining battery capacity is low, the invention controls power supply (108) to the recording media (200) and clock supply (110) to a CPU (202) in the recording media (200) so as to reduce power supplied to the recording media (200)
摘要:
A content playback apparatus reduces load concentration on a specific server apparatus that manages content keys of encrypted content, while protecting copyrights of the content. The content apparatus makes playback of content recorded in a recording medium sold possible after the specific server breaks down. A key acquisition control unit (204) reads a playback control information table (211) from a recording medium (102) via a reading unit (201). The key acquisition unit (204) acquires a rights key via a key acquisition intermediation unit (223) from an apparatus specified by an acquisition-destination type and a request-destination type that are stored in the playback control information table (211) and that corresponding to the content to be played. The key acquisition unit (204) generates a content key using the acquired rights key and, when required, a medium key recorded in a medium. A decryption unit (203) decrypts encrypted content using the content key.
摘要:
A content playback apparatus reduces load concentration on a specific server apparatus that manages content keys of encrypted content, while protecting copyrights of the content. The content apparatus makes playback of content recorded in a recording medium sold possible after the specific server breaks down. A key acquisition control unit (204) reads a playback control information table (211) from a recording medium (102) via a reading unit (201). The key acquisition unit (204) acquires a rights key via a key acquisition intermediation unit (223) from an apparatus specified by an acquisition-destination type and a request-destination type that are stored in the playback control information table (211) and that corresponding to the content to be played. The key acquisition unit (204) generates a content key using the acquired rights key and, when required, a medium key recorded in a medium. A decryption unit (203) decrypts encrypted content using the content key.
摘要:
A contents using device (or a terminal device) 300 is composed of: a license processing unit 305 which judges, on the basis of a usage rule of a license, whether or not the content is available; a content reproduction unit 304 which uses the content judged by the terminal device 300 to be available; a restriction unit (or a content reproduction unit 304) which restricts the license corresponding to the contents from being used by another source by reason that the license is currently in use, for a time period between a start and a normal end of the content usage by the content reproduction unit 304; an event detection unit 307 which detects a predetermined event that occurs between the start and the normal end of the content usage and that forcefully aborts the content usage; a restriction-relaxation necessity judgment unit (or a recovery/penalty judgment unit) 309 which judges whether or not the predetermined event is against an intention of a user; and a restriction relaxation unit (or a license recovery unit) 306 which relaxes the restriction on the content usage when the recovery/penalty judgment unit 309 judges that the predetermined event is against the intention of the user.
摘要:
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.