Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Yuki Kusumi

Masahiro Oashi

Tatsuya Shimoji

Kazuo Okamura

Masayuki Kozuka

Junichi Hirai

Naoya Takao

Takashi Kakiuchi

Yoshihiro Mimura

Yoshiyuki Miyabe

Ikuo Minakata

Toshiya Mori

Shinji Inoue

Yoshinori Matsui

Kiyokazu Yamanaka

Shigeaki Watanabe

Chihiro Kawahara

Masahiro Kawai

Kazutoshi Sumiya

Ryoichi Sasaki

Keisei Yamamuro

Takuya Sekiguchi

Toshihiro Hishida

Kouichi Yasutake

Hiroki Nakamura

Hidekazu Shimizu

Yasunori Tanaka

Syusuke Haruna

Yasushi Nishimura

When a program transmission apparatus divides a program into a plurality of partial programs before transmission, a program reception execution apparatus executes a partial program when the partial program has already been received, and, when the execution needs to proceed to from a present partial program to a next partial program, executes the other partial program when the next partial program has been received.

Program reception/execution apparatus that can commence execution of a machine program having only received the program in part, and a program transmission apparatus that enables such execution

A CD-ROMfor recording multi-media information of at least one page stream. Contents of each page stream are successively recorded in the storage areas in the CD-ROMThe following three items are shown by the page stream: a partial image list having at least one pair of partial image data which describes partial images of one screen image and display state information including X-Y coordinates, X-Y enlargement rates and a rotational angle showing the display state; control information which describes command to be executed corresponding to an input signal; time line information which describes parameters concerning time sequence processing to be executed corresponding to the control information. The display data creation unitsynthesizes partial images shown by the partial image list and creates display data from the partial image data and display state information in the page stream read from the CD-ROMand writes the display data in the display data storage unit

Multi-media information record device, and a multi-media information playback device

A data transmission apparatus has a multiplexing unit that cyclically multiplexes presentation information and navigation information stored in a transmission data storage unit according to control by a multiplexing control unit and a transmission unit that transmits the multiplexed stream. The reception control unit of a data reception apparatus sets filter conditions in a filter condition storage unit of a TS decoder unit in accordance with user operation indications. The presentation information and navigation information separated by the TS decoder unit are outputted via a reproduction unit to a display unit and an audio output unit.

Digital broadcasting system, digital broadcasting apparatus, and receiver apparatus for digital broadcasts

The present invention provides a system capable of individually controlling each of receiving devices while making full use of the advantages of broadcasting. Simultaneous transmission is carried out from a broadcasting deviceto a plurality of receiving devicesvia a broadcasting path. Further, the broadcasting devicesends operation control data to the receiving devicethrough a communication path. The receiving devicechanges its operation in accordance with the operation control data when received broadcasting is decoded. In this way, each of the receiver devicescan be controlled individually using the operation control data while making full use of the advantages of broadcasting.

Electronic mail system

A broadcasting system which includes a broadcasting apparatus and a reception apparatus and which achieves interactiveness using a broadcast wave. The broadcasting apparatus includes a content storing unit for storing the plurality of contents, each content including a set of video data and a set of control information that indicates another content that is a link destination for a present content, and a transmitting unit for multiplexing a set of video data and a plurality of sets of the same control information included in a same content as the set of video data, and for transmitting the multiplexed sets of video data and control information. The reception apparatus includes an extracting unit for extracting a set of video data and a set of control information in a same content as the set of video data, a storing unit for storing the extracted set of control information, a reproducing unit for reproducing the extracted set of video data and outputting an image signal, an operation unit for receiving a user operation that indicates a content switching, and a control unit for controlling the extracting unit to extract another content indicated by the set of control information stored in the storing unit, in accordance with the user operation.

Digital broadcasting system, digital broadcasting apparatus, and a reception apparatus for digital broadcasts

A terminal apparatus for interactively switching pieces of presentation data in a system which repeatedly broadcasts pieces of presentation data and corresponding pieces of navigation data including a receiver for receiving the presentation data, a reproduction apparatus, and a cache storage for storing pre-received pieces of presentation data and navigation data. Navigation data is analyzed to detect pieces of link-target presentation data which are presented to an operator. When the operator selects one of the link-target presentation data stored in the cache storage, the reproduction apparatus reproduces the presentation data.

TERMINAL APPARATUS AND METHOD FOR ACHIEVING INTERACTIVE OPERATIONS BY DISPLAYING A DESIRED PIECE OF IMAGE INFORMATION AT HIGH SPEED USING CACHE MEMORIES, OUT OF A LARGE AMOUNT OF IMAGE INFORMATION SENT IN A ONE-WAY DIRECTION

Digital broadcasting system, digital broadcasting apparatus, and receiver apparatus for digital broadcasters

A broadcast reception apparatus is provided with a reception unit for receiving broadcast data as a transport stream. The transport stream includes video data and a plurality of navigation information sequences. Each navigation information sequence includes navigation information which includes graphics data to be combined with the video data for display. A TS (Transport Stream) decoder unit extracts the video data and navigation information from the transport stream. A reception control unit controls the TS decoder unit so that the TS decoder unit extracts navigation information from a navigation information sequence which is suitable for the the broadcast reception apparatus. A navigation information storage unit stores the navigation information extracted by the TS decoder unit. A reproduction control unit combines graphics data included in the navigation information stored in the navigation information storage unit with the video data extracted by the TS decoder unit and displays a composite image of this combination. This achieves a broadcast reception apparatus which selectively uses necessary pieces of navigation information to display an image as a user interface.

Broadcast receiver selectively using navigation information multiplexed on transport stream and recording medium recording the method of the same

A data display control apparatus receives a digital broadcast and compares the present time with a time indicated in a Time_Event_Part provided in navigation information used to control the display of the multimedia data composing a broadcast program. When the indicated time has been reached, the data display control apparatus executes instructions to control the display of the multimedia data.

Data display control apparatus

A terminal apparatus is provided for displaying an image by reproducing a piece of image information and for interactively changing the image using navigation information. The image is a moving picture, a still picture, or a mixture of them. The image information and the navigation information together are broadcast by a broadcasting station to the terminal apparatus. The navigation information indicates a plurality pieces of link-target image information. The cache unit stores a pair of image information and navigation information. The reproducing unit reproduces the image information. The monitoring unit monitors whether an operator has performed a certain operation responding to the image displayed. The receiving unit, before the operator performs the certain operation, receives a plurality pieces of image information which have possibility of being displayed and a plurality pieces of corresponding navigation information based on the navigation information, and stores the plurality pieces of image information and navigation information in the cache unit. The specifying unit specifies a piece of link-target image information based on the certain operation. The identifying unit identifies the piece of link-target image information as a piece of image information.

Terminal apparatus and method for achieving interactive operations by displaying a desired piece of image information at high speed using cache memories, out of a large amount of image information sent in a one-way direction

Program reception/execution apparatus which can start execution of

An on-demand communication system provides a multimedia server connected to a plurality of clients via a network. A data stream can be transmitted in response to a transmission request of a title from a transmission device at the site of the client. The transmission device will transmit a set of reproduction information, including a plurality of titles and reproduction start times to the server along with the client identification. The server contemporarily would store, in a buffer, the reproduction information and the client identifier, read the reproduction information and the client identifier and then create a set of transmission information for each client request. A timer unit can activate a timer assigned to the client to measure time when the data stream transmission device is to start transmitting the data stream to the client.

Video on demand system with a transmission schedule table in the video

A CD-ROM 201 for recording multi-media information of at least one page stream. Contents of each page stream are successively recorded in the storage areas in the CD-ROM 201. The following three items are shown by the page stream: a partial image list having at least one pair of partial image data which describes partial images of one screen image and display state information including X-Y coordinates, X-Y enlargement rates and a rotational angle showing the display state; control information which describes command to be executed corresponding to an input signal; time line information which describes parameters concerning time sequence processing to be executed corresponding to the control information. The display data creation unit 213 synthesizes partial images shown by the partial image list and creates display data from the partial image data and display state information in the page stream read from the CD-ROM 201, and writes the display data in the display data storage unit 209.

Multi-media information record device, and a multi-media information

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Nara, Japan

Yuki Kusumi