Abstract: An acquisition processing section 120 acquires recorded data about a past application session from a log server. A user screen generating block 140 generates a screen related to the application session on the basis of the acquired recorded data. Specifically, a session list displaying section 142 displays information related to a plurality of past application sessions. A user list displaying section 144 displays information identifying the users having participated in one past application session.

Abstract: A user management server, a terminal, an information display system, a user management method, an information display method, a program, and an information storage medium are provided to enable a user to have less trouble than with existing techniques in registering users disclosing their real names. In response to a first operation to designate a user, a friend management data registration part registers the user as a user in a first relation involving disclosure of a nickname. In response to a second operation to designate a user already registered as a user in the first relation, the friend management data registration part registers the user as a user in a second relation involving disclosure of a real name as well. In response to a third operation to designate a user not registered as a user in the first relation, the friend management data registration part registers the user as a user in the first and the second relations.

Abstract: On a participation member screen image of a chat room, user information is displayed such that a host user and a guest user who perform share play can be specified. In a member information area, an information displaying field for the host user and an information displaying field for the guest user are disposed in a juxtaposed relationship from the uppermost stage, and a share play mark is added to the host user. Further, in a share play item, a check mark is displayed to indicate that share play is proceeding, and time information is displayed to indicate an implementation time period of the share play.

Abstract: Provided are a control apparatus, a control method, a program, and an information storage medium that are configured, if an execution of processing based on speech recognition is disabled, to make a user recognize that, if recognition of an accepted speech is successful, the execution of processing based on speech recognition is disabled. A speech acceptance block accepts a speech. An execution block executes processing according to a result of recognition of the speech. An output control block executes control so that information indicative that execution of processing based on speech recognition is disabled is outputted. In accordance with success in the recognition of the speech, one of the execution of the processing according to the result of the recognition of the speech and the output control of the information indicative that the execution of processing based on speech recognition is disabled is executed.

Abstract: On a participation member screen image of a chat room, user information is displayed such that a host user and a guest user who perform share play can be specified. In a member information area, an information displaying field for the host user and an information displaying field for the guest user are disposed in a juxtaposed relationship from the uppermost stage, and a share play mark is added to the host user. Further, in a share play item, a check mark is displayed to indicate that share play is proceeding, and time information is displayed to indicate an implementation time period of the share play.

Abstract: A user management server, a terminal, an information display system, a user management method, an information display method, a program, and an information storage medium are provided to enable a user to have less trouble than with existing techniques in registering users disclosing their real names. In response to a first operation to designate a user, a friend management data registration part registers the user as a user in a first relation involving disclosure of a nickname. In response to a second operation to designate a user already registered as a user in the first relation, the friend management data registration part registers the user as a user in a second relation involving disclosure of a real name as well. In response to a third operation to designate a user not registered as a user in the first relation, the friend management data registration part registers the user as a user in the first and the second relations.

Abstract: Provided are a control apparatus, a control method, a program, and an information storage medium that are configured, if an execution of processing based on speech recognition is disabled, to make a user recognize that, if recognition of an accepted speech is successful, the execution of processing based on speech recognition is disabled. A speech acceptance block accepts a speech. An execution block executes processing according to a result of recognition of the speech. An output control block executes control so that information indicative that execution of processing based on speech recognition is disabled is outputted. In accordance with success in the recognition of the speech, one of the execution of the processing according to the result of the recognition of the speech and the output control of the information indicative that the execution of processing based on speech recognition is disabled is executed.

Abstract: On a participation member screen image of a chat room, user information is displayed such that a host user and a guest user who perform share play can be specified. In a member information area, an information displaying field for the host user and an information displaying field for the guest user are disposed in a juxtaposed relationship from the uppermost stage, and a share play mark is added to the host user. Further, in a share play item, a check mark is displayed to indicate that share play is proceeding, and time information is displayed to indicate an implementation time period of the share play.

Abstract: An acquisition processing section 120 acquires recorded data about a past application session from a log server. A user screen generating block 140 generates a screen related to the application session on the basis of the acquired recorded data. Specifically, a session list displaying section 142 displays information related to a plurality of past application sessions. A user list displaying section 144 displays information identifying the users having participated in one past application session.

Abstract: A display format identification unit identifies a display format defined in a plurality of items of image data associated with each other. A message communication unit communicates a message corresponding to the identified display format when an image generation unit generates a display image in a display format different from the identified display format. A communication storage unit stores a record indicating that the message communication unit communicates a message. If the communication storage unit stores the record indicating that the message was communicated, the message communication unit does not communicate a message again.

Abstract: An information processing unit having an auto power-off function includes a mode setting means for setting one mode from a plurality of pre-prepared modes. The pre-prepared modes include a first power-saving mode and a second power-saving mode. Also included are a processing execution means for executing game application or contents replay as internal processing, and a power controlling means for controlling power of the information processing unit. The power controlling means continues power-on in the first power-saving mode and changes to power-off in the second power-saving mode when a non-operated state in which no input operation has been carried out by the user has continued for a predetermined time or longer during execution of the internal processing.

Abstract: An information processing unit having an auto power-off function includes: a mode setting means for setting one mode from a plurality of pre-prepared power-saving modes in conformity with input by a user, wherein the plurality of power-saving modes includes a first mode and a second mode, and the first mode and the second mode differ in electricity consumption reduction effectiveness; a determination means for determining whether a non-operated state in which no input operation has been carried out by the user has continued for a predetermined time or longer; a processing execution means for executing internal processing; and a decision means for deciding whether or not to execute the auto power-off function based on the mode set by the mode setting means and internal processing executed by the processing execution means when the determination means has determined that the non-operated state has continued for a predetermined time or longer.

Abstract: A display format identification unit identifies a display format defined in a plurality of items of image data associated with each other. A message communication unit communicates a message corresponding to the identified display format when an image generation unit generates a display image in a display format different from the identified display format. A communication storage unit stores a record indicating that the message communication unit communicates a message. If the communication storage unit stores the record indicating that the message was communicated, the message communication unit does not communicate a message again.

Abstract: An information processing unit having an auto power-off function includes: a mode setting means for setting one mode from a plurality of pre-prepared power-saving modes in conformity with input by a user, wherein the plurality of power-saving modes includes a first mode and a second mode, and the first mode and the second mode differ in electricity consumption reduction effectiveness; a determination means for determining whether a non-operated state in which no input operation has been carried out by the user has continued for a predetermined time or longer; a processing execution means for executing internal processing; and a decision means for deciding whether or not to execute the auto power-off function based on the mode set by the mode setting means and internal processing executed by the processing execution means when the determination means has determined that the non-operated state has continued for a predetermined time or longer.

Abstract: An authoring system authors content data for distribution through an information terminal by encryption for copyright protection. The system includes an authoring device and an authoring key generator. The generator generates a content identifier uniquely allocated to each of the content data, an authoring key enabling key uniquely allocated to the authoring device, and an authoring key obtained by encrypting a content key for encrypting the content data and a second content key using the CID and the CEK. The second content key is formed by encrypting the content key using a root key. The authoring device has a unit which decrypts the content key and the second content key using the CID and the CEK, and a unit which encrypts the content data using the decrypted content key to generate authored encrypted content data.

Abstract: An authoring system which authors content data to be distributed through an information terminal by encryption for copyright protection includes an authoring device and an authoring key generator. The authoring key generator generates a content identifier (CID) uniquely allocated to each of the content data (Content), an authoring key enabling key (CEK) uniquely allocated to the authoring device, and an authoring key (CED) obtained by encrypting a content key (Kc) for encrypting the content data and a second content key (EKc) using the CID and the CEK. The second content key (Ekc) is formed by encrypting the content key (Kc) using a root key (Kroot). The authoring device has a unit which decrypts the content key (Kc) and the second content key (Ekc) using the CID and the CEK, and a unit which encrypts the content data using the decrypted content key (Kc) to generate authored encrypted content data (E (Kc, Content)).

Abstract: A copyright-managed environment is provided in which encrypted content and a license for decrypting the content are handled separately. Each client registered in the environment uses content legitimately. After the content acquired by a client A of a user is stored into a client B of the same user, the client B may receive a new license for the same content from a license server. This allows the content to be shared between the clients A and B while the copyright of the content is protected. The inventive environment allows the user having acquired a license to use the corresponding content on a plurality of apparatuses in his or her possession while illegal content uses are forestalled.

Abstract: An environment in which copyright management is exercised is supplied so that encrypted contents and the license for decrypting the encrypted contents can be handled independently. Further, each client legally uses the contents. When contents acquired by client A are to be moved to client B, the information about client B is attached to the contents so that client B can be identified. In this manner, the contents can be shared between clients A and B, while the contents are protected. A licensed user can use contents from a plurality of devices, while preventing an illegal use of the contents.

Abstract: An authoring system which authors content data to be distributed through an information terminal by encryption for copyright protection includes an authoring device and an authoring key generator. The authoring key generator generates a content identifier (CID) uniquely allocated to each of the content data (Content), an authoring key enabling key (CEK) uniquely allocated to the authoring device, and an authoring key (CED) obtained by encrypting a content key (Kc) for encrypting the content data and a second content key (EKc) using the CID and the CEK. The second content key (Ekc) is formed by encrypting the content key (Kc) using a root key (Kroot). The authoring device has a unit which decrypts the content key (Kc) and the second content key (Ekc) using the CID and the CEK, and a unit which encrypts the content data using the decrypted content key (Kc) to generate authored encrypted content data (E (Kc, Content)).