Ntt Docomo, Inc.

Ntt Advanced Technology Corporation

Tatsuji Nagaoka

Hiroji Saito

Tomoko Matsuura

Mariko Wakaizumi

Yutaka Hiruma

Kazuo Nomura

A user sends a request signal to a delivery management serverby utilizing a mobile stationin response to a broadcast service provided by a broadcast station. The request signal includes a music song ID of music song data segments which the user wants to be delivered and also an address of the destination to which the music song data segments be delivered. Upon the receipt of the request signal, the delivery management serverreturns, in the case of unpopular songs, the music song data segments and a decrypting key for decrypting the data segments, and on the other hand, it returns, in the case of popular songs, only the decrypting key to the mobile stationor a STB. The mobile stationor the STBdecodes, in the case of unpopular songs, the music song data segments received from the delivery management serverby utilizing the decrypting key therefor and on the other hand, it receives, in the case of popular songs, the music song data segments in the broadcast waves provided from the broadcast stationand then decrypts data segments by utilizing the decrypting key received from the delivery management server

Information system, mobile communication terminal, and information method

Program guide information of the program to be broadcast by the broadcast stationis reserved in the EPG serverof the center stationThe EPG serverretrieves for each user, the program satisfying the conditions such as the category of the program registered in the personal information databaseand then transmits the guide information of the retrieved programs to the portable telephoneof a user who has set the conditions, via the communication networkThereby, even if the user is outside the home, if there is a program satisfying the conditions specified by the user, the user can obtain the information concerning the program by utilizing the portable telephoneThen, the user can instruct, with reference to the obtained program information, a recording operation from the portable telephoneto the VTRin the home

APPARATUS FOR TRANSMITTING PROGRAM INFORMATION, COMMUNICATING SYSTEM, METHOD OF TRANSMITTING PROGRAM INFORMATION, METHOD OF INSTRUCTING PROGRAM RECORDING OPERATION, AND METHOD OF INSTRUCTING PROGRAM PURCHASING OPERATION

A security systemand an electronic device groupto be stored in a home networkare controlled by a home server. A home network management facilityobtains status information of the electronic device groupfrom home server. Home network management facilitydisplays the status of electronic device groupon a display unit of a terminalbased on the received status information. Home network management facilityalso displays a screen for prompting input of a control instruction of the home-located electronic devices that are included in the electronic device group. Based on control instruction received via home server, home network management facilityperforms remote control of electronic device group

Growing community of inventors

Sapporo, Japan

Tatsuji Nagaoka