Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Hiroaki Iwamoto

Tomoyuki Okada

Wataru Ikeda

Masahiro Oashi

Masafumi Okubo

Satoshi Hashimoto

Takuya Kobayashi

Michiko Tanaka

Keiichi Tanaka

Takako Hirose

Hidetaka Ohto

Seiji Horii

Mikio Shimazu

Masahide Morozumi

Akinori Tatsumi

Takayuki Hamaki

Mitsuhiro Suzuki

Jun Yamaguchi

A broadcast signal receiving apparatus receives a plurality of transport streams and uses conditional access provided by an external adapter. The broadcast signal receiving apparatus includes a pre-processor operable to extract a part of information, by elementary stream unit, from each of the plurality of transport streams by receiving a filtering condition from the external adapter and performing filtering on the plurality of transport streams according to the filtering condition. The broadcast signal receiving apparatus also includes a multiplexer, an output interface, an input interface, and a demultiplexer. The external adapter is detachable from the broadcast signal receiving apparatus, and includes a conditional access descrambler that descrambles transport stream packets in the multiplexed data that are protected by conditional access with a packet identifier specified by the controller in the broadcast signal receiving apparatus.

Apparatus for receiving broadcast signal

A playback apparatus has a platformthat is a program execution environment of an application. When the platforminitiates the application, a graphics information transmission unit, which corresponds to an API function, obtains graphics information and stores the graphics information in a graphics information storage unit. A graphics information control unitselects graphics information to be rendered, based on a stream event obtained by a stream event reception unitand the graphics information stored in the graphics information storage unit. The graphics information control unithas a graphics rendition unitrender the selected graphics with a video playback timing relating to the stream event.

Reproduction device

A BD-ROM contains a plurality of titles which can be branched among, and a Java application. The Java application is a program described in a programming language for a virtual machine. A life cycle where execution by the virtual machine is enabled is predetermined. Each of the titles contains an application management table indicates an application that has a life cycle bound to the title.

Recording medium, playback apparatus, program, and playback method

An BD-ROM playback apparatus simultaneously executes reproduction of a title including an AVClip and executes an application. The BD-ROM playback apparatus includes a BD-J module () executing an application, a playback control engine () for reproducing the AVClip belonging to a title, and a module manager () for controlling branching between titles. The BD-J module () includes a Java virtual machine () and an application manager (). The Java virtual machine () interprets the application, generates an instance, and executes the generated instance. When the instance is that a work memory () in the Java virtual machine () exists, the application manager () interprets that the title playback is continuing even if the application has terminated. When a playback completion event is issued from the playback control engine (), the module manager () is made to select the next title even if the title playback has terminated.

Playback apparatus program and playback method

A machine readable disc in which a machine readable application program, a digital stream, and management information including plural pieces of play list information which define playback paths of the digital stream are recorded. The machine readable application program is readable by a virtual machine included in a machine. A life cycle during which the machine readable application program can be read and executed by the virtual machine is specified. The management information includes information that indicates a predetermined piece of play list information, among plural pieces of play list information, which defines a playback path of the digital stream that is played back by a playback control engine included in the machine during the life cycle, simultaneously with the execution of the machine readable application program.

Integrated circuit for use in a playback apparatus

A BD-ROM contains plurality of Titles which can be branched among and a Java application executable upon reproduction of each Title. Each Title has an AV Clip and an application management table. The application is a program described in a virtual-machine oriented programming language. The application management table correlates an application to an application run attribute in the corresponding Title. The run attribute may be a continuation attribute (Persistent) for continuing the application state in the branch origin or an AutoRun attribute for automatically running the application when the application is in a non-run state in the branch origin.

Playback apparatus, recording method, and playback method

A broadcast signal receiving apparatus, which is capable of simultaneously processing a plurality of transport streams in an appropriate manner, is comprised of: a pre-processing unitthat determines and extracts a piece of viewing-related data from each of a plurality of transport streams; a multiplexing unitthat multiplexes the extracted pieces of viewing-related data, and outputs the resulting multiplexed data to an adapter; and a demultiplexing unitthat obtains, from the adapter, the multiplexed data processed by the adapter, and demultiplexes the received data.

A BD-ROM playback apparatus simultaneously executes reproduction of a title including an AVClip and executes an application. The BD-ROM playback apparatus includes a BD-J module () executing an application, a playback control engine () for playing the AVClip belonging to one title, and a module manager () for controlling branching between a plurality of titles. The title includes a data management table. The data management table indicates an application read priority level for each title. The BD-J module () includes a java virtual machine (), a local memory (), and an application manager () for loading the application to the local memory (). The application manager () reads in the application into the local memory () according to the read priority level of each application and the memory size of the local memory ().

Recording medium, playback apparatus, recording method, and playback method

Recording medium, playback device, recording method and playback method

A playback device plays back a digital stream and executes an application. A Java&#x2122; 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&#x2122; module provides a function using a real parameter to the application, in response to a method call from the application.

Reproduction device and program

A BD-ROM playback apparatus simultaneously executes playback of a title and execution of an application. The BD-ROM playback apparatus includes a playback control engine () for playing an AVClip belonging to one title, and a module manager () controlling branching between a plurality of titles, and a BD-J module () for executing at least one application. The BD-J module () includes a Java virtual machine () and an application manager (). The application manager () interprets that the title execution is complete and performs a termination process [1] when no application is run or [2] when the main application has terminated. After execution of the termination process, the module manager () selects the next title such as a top menu title.

The BD-ROM includes, recorded therein, a PlayList that is composed of an AVClip and PlayList information, an application, and a BD-J Object. The application is a program that is written in a programming language for a virtual machine, and a life cycle during which the application can be executed by the virtual machine is specified. The BD-J Object contains a PlayList management table. The PlayList management table indicates a playback control of the PlayList that is performed during the life cycle simultaneously with the execution of the application.

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Osaka, Japan

Hiroaki Iwamoto