Abstract: A method of controlling a plurality of equipment pieces by a controller including a microphone, a sensor, and a speaker includes collecting, with the microphone, sound around the controller, sensing, with the sensor, a location of a person with respect to the plurality of equipment pieces, generating sensing data based on the sensing, extracting an utterance for controlling the plurality of equipment pieces from the sound collected by the microphone, in accordance with the utterance, identifying a target equipment piece to be controlled among the plurality of equipment pieces, determining whether to control the target equipment piece based on the sensing data, when the control equipment piece is determined to be controlled, generating an audio response for verifying whether to control the target equipment piece in accordance with the utterance, and causing the speaker to output the audio response.

Abstract: A method of controlling a plurality of equipment pieces by a controller including a microphone, a sensor, and a speaker includes collecting, with the microphone, sound around the controller, sensing, with the sensor, a location of a person with respect to the plurality of equipment pieces, generating sensing data based on the sensing, extracting an utterance for controlling the plurality of equipment pieces from the sound collected by the microphone, in accordance with the utterance, identifying a target equipment piece to be controlled among the plurality of equipment pieces, determining whether to control the target equipment piece based on the sensing data, when the control equipment piece is determined to be controlled, generating an audio response for verifying whether to control the target equipment piece in accordance with the utterance, and causing the speaker to output the audio response.

Abstract: A playback device executes playback of video data in sync with an application program associated with the video data. The playback device includes an activating unit for activating the application program, a receiving unit for receiving from a user an input specifying a playback section associated with a piece of video data and an application program, and an activation control unit. If a first input is received from the user by the receiving unit and a second input is received within the predetermined time period from reception of the first input, the activation control unit discards the first input. If a third input is not received within the predetermined time period from reception of the second input, the activation control unit activates an application program according to the second input.

Abstract: Hardware of a playback apparatus includes a drive and a decoder, and firmware of the playback apparatus accesses a BD-ROM loaded on a drive, according to a BD-J application, to bring the decoder into AV playback operations. The drive unit constitutes a local storage. A benchmark score is built in the firmware in advance. The benchmark score shows a turn-around time from when a processing request is made to the hardware via the firmware to when a response returns. Such a benchmark score is written into an application data area in the local storage when the firmware is initially executed.

Abstract: A playback apparatus plays back video data recorded on a recording medium such as a BD-ROM. The playback apparatus includes (i) an interface in which a removable medium such as an SDRAM is inserted, (ii) a detection module detecting that the removable medium is inserted, and (iii) a virtual file system. The virtual file system is used if the removable medium is detected to be inserted, if additional content such as subtitles is recorded on the removable medium, and furthermore if the additional content is associated with the video data recorded on the BD-ROM, etc. The virtual file system dynamically combines the video data recorded on the BD-ROM, etc. and the additional content of the removable medium so as to play back a virtual package.

Abstract: A playback apparatus for playing a digital stream in conjunction with an application includes a package management unit operable to generate package information by merging files recorded on a first recording medium and a second recording medium, in accordance with merge management information, and a selection unit operable to detect a plurality of playable titles from the package information, and select one of the detected titles as a current title.

Abstract: In the Local Storage (18), a plurality of files, merge management information which specifies a file out of the plurality of files to be used in combination with what is recorded on a Read-Only recording medium, and signature information used for judging the authenticity of the merge management information. The Virtual File System unit (38) judges the authenticity of the merge management information based on the signature information. In the case where the merge management information is judged to be authentic, the Virtual File System unit (38) generates package information which indicates a new file structure obtained by adding the file specified by the merge management information to the file structure of the Read-Only recording medium.

Abstract: An integrated circuit stores a module that executes applications that play digital streams. When the module is executed, the integrated circuit generates package information by merging files recorded on a first recording medium and a second recording medium, in accordance with merge management information, detects a plurality of playable titles from the package information, and selects one of the detected titles as a current title. The integrated circuit executes the application associated with the current title, and the executed application makes a request to update the generated package information by specifying new merge management information.

Abstract: A playback device generates a virtual package in response to a construction request made by an application. After the virtual package is thus generated, a virtual file system 23 allows a file recorded on a removable medium in an 8.3 format to be accessed with use of an alias in a Long File Name format, based on a merge management information file that indicates a correspondence between a file path in the 8.3 format and a file path in the Long File Name format.

Abstract: The present invention is the playback apparatus 400 for (i) mounting thereon the BD-ROM 200 in which a plurality of data groups and an application program that refers to each of the data groups are stored and (ii) playing back each of the data groups by executing the application program. The playback apparatus 400 comprises: the playback processing unit 412 operable to control the execution of the application program; the network IF unit 419 operable to obtain, from an external server including therein one or more alternative data groups, an alternative data group to replace part of the data groups; and the HDD unit 418 that stores therein correspondence information showing a correspondence between a storage location where on an internal recording medium the alternative data group is stored and a storage location where on the external recording medium the part of the data groups to be replaced.

Abstract: In the Local Storage (18), a plurality of files, merge management information which specifies a file out of the plurality of files to be used in combination with what is recorded on a Read-Only recording medium, and signature information used for judging the authenticity of the merge management information. The Virtual File System unit (38) judges the authenticity of the merge management information based on the signature information. In the case where the merge management information is judged to be authentic, the Virtual File System unit (38) generates package information which indicates a new file structure obtained by adding the file specified by the merge management information to the file structure of the Read-Only recording medium.

Abstract: A playback device plays back a digital stream and executes an application. A Java™ module is a platform unit, executes the application, and performs playback control based on a result of the execution. When performing this playback, the playback device has a plurality of real parameters specific to the playback device, for the playback control. The Java™ module provides a function using a real parameter to the application, in response to a method call from the application.

Abstract: A recording medium 100 on which an index table, an operation mode object, and byte-code applications are recorded. The index table shows correspondence between one or more titles and one or more operation mode objects. The operation mode object includes an application management table and display rate initialization information. The application management table indicates a byte-code application to be started to a playback device when a title corresponding to the operation mode object is selected as a current title. The display rate initialization information indicates how to initialize a display rate of a display device connected to the playback device when the title corresponding to the operation mode object is selected as the current title.

Abstract: An access control device controls an access right with respect to a plurality of electronic devices in a network for each combination of electronic devices. An authority information generating section generates authority information which is used when an electronic device accesses an application on an electronic device. A permission information generating section generates permission information which is information about whether or not the electronic device permits an access request from the electronic device, in relation with the authority information. An access information storing section stores the authority information and the permission information. A transmission control section transmits via the communication section the authority information to the electronic device and the permission information to the electronic device.

Abstract: A playback apparatus for playing a digital stream in conjunction with an application includes a package management unit operable to generate package information by merging files recorded on a first recording medium and a second recording medium, in accordance with merge management information, and a selection unit operable to detect a plurality of playable titles from the package information, and select one of the detected titles as a current title.

Abstract: A program execution device is a device for executing an application program having at least one class including an execution code created by an object directivity language. The program execution device includes a first execution device having a memory and a processor and a tamper-resistant second execution device having a memory and a processor. When a class is executed, a loader loads an execution code of the class in the memory of the second execution device and loads a portion of the class other than the execution code loaded in the memory of the second execution device, in the memory of the first execution device.

Abstract: A playback device generates a virtual package in response to a construction request made by an application. After the virtual package is thus generated, a virtual file system 23 allows a file recorded on a removable medium in an 8.3 format to be accessed with use of an alias in a Long File Name format, based on a merge management information file that indicates a correspondence between a file path in the 8.3 format and a file path in the Long File Name format.

Abstract: In the Local Storage (18), a plurality of files, merge management information which specifies a file out of the plurality of files to be used in combination with what is recorded on a Read-Only recording medium, and signature information used for judging the authenticity of the merge management information. The Virtual File System unit (38) judges the authenticity of the merge management information based on the signature information. In the case where the merge management information is judged to be authentic, the Virtual File System unit (38) generates package information which indicates a new file structure obtained by adding the file specified by the merge management information to the file structure of the Read-Only recording medium.

Abstract: Hardware of a playback apparatus 102 includes a drive 1 and a decoder, and firmware 22 of the playback apparatus 102 accesses a BD-ROM loaded on a drive 1, according to a BD-J application, to bring the decoder into AV playback operations. The drive unit constitutes a local storage. A benchmark score is built in the firmware 22 in advance. The benchmark score shows a turn-around time from when a processing request is made to the hardware via the firmware 22 to when a response returns. Such a benchmark score is written into an application data area in the local storage when the firmware 122 is initially executed.

Abstract: An integrated circuit stores a module that executes applications that play digital streams. When the module is executed, the integrated circuit generates package information by merging files recorded on a first recording medium and a second recording medium, in accordance with merge management information, detects a plurality of playable titles from the package information, and selects one of the detected titles as a current title. The integrated circuit executes the application associated with the current title, and the executed application makes a request to update the generated package information by specifying new merge management information.