Matsushita Electric Industrial Co., Ltd.

Matsushita Electrical Industrial Co., Ltd.

Sekisui Plastics Co., Ltd.

Sekisui Kaseihin Kogyo Kabushiki Kaisha

Tetsuji Maeda

Toshiya Mori

Mutsuhiko Kajimura

Yutaka Nio

Takashi Kakiuchi

Yoshiyuki Miyabe

Atsushi Ishizu

Satoru Inagaki

Kenjirou Tsuda

Etsuyoshi Sakaguchi

Hisayuki Kino

Shuuhei Taniguchi

Hirofumi Tanaka

Koichi Yasutake

A broadcasting reception apparatus includes a display unit for presenting a display showing a plurality of channels, with which the user can recognize whether decoding software programs for decoding program signals being currently broadcast via each channel are held in a library buffer, or not, thereby making possible pleasant zapping.

Broadcasting reception apparatus and data broadcasting method

For updating the entire region of the control software stored in the memory of the information terminal, the invention provides a system and apparatus for remote program downloading characterized by downloading a download process program exclusive for downloading process in a region indifferent to download process by using control software at the terminal, downloading the download process program portion of the control software to be updated by using this exclusive download process program, and finally, by using this download process program, downloading the program other than the download process program portion of the control software to be updated.

Remote program downloading system and apparatus

The transmitter transmits program information including machine type codes showing the version of hardware able to receive program data, version information indicating the version of software corresponding to the machine type code, and the names and codes of programs to replace with or be added to for the version of software. The receiver compares a machine type code indicating the version of the receiver hardware and version information showing the version of software corresponding to the machine type code with the machine type codes and version information of the program information, examines whether the version of software is updated or not, and, when the version is not updated, stores program codes to update the version. Thereby, it is possible to provide a remote maintenance method and a remote maintenance apparatus able to update the version of software, securing the matching of software and hardware, in a network of wired or wireless broadcasting.

Remote maintenance method and remote maintenance apparatus

Memory is divided into a plurality of banks to store software which is upgraded one bank at a time. By doing so, a memory with the same size as one bank is only needed as the temporary storage used when performing an upgrade. The terminal device only needs a memory that is &ldquo;1&plus;1/n&rdquo; times as large as a total software when there are n banks, while a conventional terminal device needs a memory that is twice as large as the total software. Two loader programs are stored in different banks as a master loader program used for download processing and a backup loader program. On receiving a new loader program, one loader program is used to write the new loader program over the other loader program so as to upgrade the loader program. The backup loader program is activated when the new loader program is to be written over the master loader program.

Terminal device capable of remote download, download method of loader program in terminal device, and storage medium storing loader program

Expandable styrene-maleic anhydride copolymer particles which comprises a copolymer resin obtained by reaction of a styrene-maleic anhydride copolymer with a hydroxy compound and further impregnated with a volatile blowing agent.

Expandable styrene-maleic anhydride copolymer particles and a process

Expandable styrene-maleic anhydride copolymer particles in which the base copolymer is chemically modified with a hydroxy compound such as 1,4-butanediol, diethylene glycol, glycerine or bisphenol which are useful in the production of various foamed articles having low density without overcharging thereof and good thermal stability.

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Nara, Japan

Tetsuji Maeda