Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Yasuyuki Sonoda

Keisei Yamamuro

Tatsuya Shimoji

Masahiro Oashi

Kazuo Okamura

Naoya Takao

Yoshihiro Mimura

A sorting section in a restoration section sorts out a packet for an intended service from a transport stream received according to the control of a reception control section. The sorted out packet is provided to an output section and restored to NTSC signals. An audiovisual output section (such as a TV set) receives the signals and outputs images and voices. The reception control section acquires information on the type of contents chosen out of the transport stream through the sorting section, and further compares the contents type information with restorable contents type information recorded in a restorable contents type information recording section. Then, a determination is made whether or not the contents intended for restoration are restorable. Depending on the determination, the manner of process applied to the contents is changed. For example, the restoration of the contents is interrupted.

Broadcast system and method therefor

An object is to perform retrial processing according to the allowable volume on communication lines made available at response information receiving equipment. A broadcast unit, when broadcasting video and audio, includes retrial information in that broadcast, according to the allowable volume on the communication lines between the television receivers and the response information receiving equipment. Television receivers effect display based on the received digital data. Response information input by users is sent to the response information receiving equipment. The television receivers make retrial transmissions based on the received retrial information when communications could not be established with the response information receiving equipment. This retrial information is responsive to the allowable volume on the communication lines between the television receivers and the response information receiving equipment, wherefore retrial transmissions are made according to the allowable volume on the communication lines.

Data transceiving system and method therefor

A sorting sectionin a restoration sectionsorts out a packet for an intended service from a transport stream received according to the control of a reception control section. The sorted out packet is provided to an output sectionand restored to NTSC signals. An audiovisual output section(such as a TV set) receives the signals and outputs images and voices. The reception control sectionacquires information on the type of contents chosen out of the transport stream through the sorting section, and further compares the contents type information with restorable contents type information recorded in a restorable contents type information recording section. Then, a determination is made whether or not the contents intended for restoration are restorable. Depending on the determination, the manner of process applied to the contents is changed. For example, the restoration of the contents is interrupted.

Broadcasting system and its method

A plurality of HTML files having their file names which may directly be recognized by a filtering part in a data receiver are stored in a data storage part File names of the HTML files are assigned to their headers by a data converter and the files converted and multiplexed are repeatedly transmitted by a data multiplexing and transmitting part A filtering part selects the data having exact match with the filtering condition. A data processing part performs data processing required for generating images, and the images thus generated are displayed on a screen of the display part The data processing part provides a switching command to a filtering conditions varying part when an operator enters a file to be linked through an input part The file to be linked is received as a result of changing the filtering conditions. In this way, the files required can be received and be displayed dynamically without storing all the HTML files linked one another even in temporary basis.

System and method for digital data communication

An object is to make efficient pre-reading possible even in receivers having little memory for receiving. A CPU acquires data size in each module by referring module control information for a received DII, (step S ). The data sizes of the modules are compared with the remaining memory in a RAM (step S ), and modules smaller than the remaining memory are pre-read into the RAM (step S ). When a pre-read flag is not on, then no pre-reading is done even when a module is smaller than the remaining memory. Thus data that are updated from time to time can be excluded from being subject to pre-reading.

Data transceiving system and method

A digital broadcast sending/receiving system includes a digital broadcast sending apparatus and a digital broadcast receiving apparatus. The digital broadcast sending apparatus multiplexes the audio data and video data of a broadcast program into the transport stream together with preselection control information which controls preselection information image facilitating program preselection, and sends the transport stream to the digital broadcast receiving apparatus. On receiving the transport stream, the digital broadcast receiving apparatus extracts the preselection control information, and reproduces a preselection screen on a display in which the preselection information image is superimposed on the video image of the broadcast program. The digital broadcast receiving apparatus receives from the viewer specification of a program to be preselected. The digital broadcast receiving apparatus stores information on the preselected program, and reproduces the preselected program in accordance with the stored information.

DIGITAL TV BROADCAST SENDING APPARATUS, DIGITAL TV BROADCAST RECEIVING APPARATUS, AND DIGITAL TV BROADCAST SENDING / RECEIVING SYSTEM WHICH FACILITATE PRESELECTION OF TV PROGRAMS, AND COMPUTER READABLE RECORDING MEDIUM STORING A PROGRAM FOR ACHIEVING A FUNCTION OF THE DIGITAL TV BROADCAST RECEIVING APPARATUS

A plurality of HTML files having their file names which may directly be recognized by a filtering part in a data receiver are stored in a data storage part . File names of the HTML files are assigned to their headers by a data converter , and the files converted and multiplexed are repeatedly transmitted by a data multiplexing and transmitting part . A filtering part selects the data having exact match with the filtering condition. A data processing part performs data processing required for generating images, and the images thus generated are displayed on a screen of the display part . The data processing part provides a switching command to a filtering conditions varying part when an operator enters a file to be linked through an input part . The file to be linked is received as a result of changing the filtering conditions. In this way, the files required can be received and be displayed dynamically without storing all the HTML files linked one another even in temporary basis.

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Kyoto, Japan

Yasuyuki Sonoda