Abstract: A transmission control device generates, based on a content stream acquired from an external source, auxiliary information necessary for at least one of recording and playback of a content in the content stream and transmits a transmission target stream to an external device. The transmission target stream includes a first stream portion based on the content stream and a second stream portion based on the generated auxiliary information.

Abstract: To prevent activation of a screen saver function during reproduction in an image display device, of a movie content of a HDD recorder. The HDD recorder includes a content server that stores content information including a program that is in a script format and that controls a generation timing of a screen saver screen, and video stream information. The image display device includes a script processing unit that acquires the content information from the content server and executes the program in script format and a stream processing unit that acquires the video stream information from the content server and decodes the video stream information. The script processing unit executes the program in script format, does not have a screen saver processing unit perform rendering of a screen saver screen during decoding of the video stream, and generates and displays a screen saver after completion of decoding.

Abstract: 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.

Abstract: A recording and playback apparatus capable of recording and playing back a content downloaded from a server, includes a recording unit configured to download the content with a playback time limit, stored in a server and record the content to a recording medium, an instruction receiver configured to receive an instruction for starting playback of the content, a playback unit configured to play back the content recorded in the recording medium in accordance with the instruction received by the instruction receiver, and a warning output unit configured to output warning information related to the playback time limit of the content before the playback unit stars playback of the content, when the instruction receiver receives the instruction for starting playback of the content during download of the content.

Abstract: A recording and playback apparatus capable of recording a content downloaded from a server to a recording medium, and playing back the content, includes a recording unit configured to download the content with a playback time limit from the server and record the content to the recording medium, a playback unit configured to play back the content recorded in the recording medium, and a display data generating unit configured to generate data of a list image for displaying a list of information of each of part or all of contents recorded in the recording medium. The data of a list image is generated so that, before the playback unit plays back a content with a playback time limit, the list image includes information indicating an allowed playback period of the content, and, after the playback unit plays back the content, the list image includes information indicating the playback time limit of the content.

Abstract: A recording and playback apparatus includes a download recording unit configured to download a content stored in the server and record the content to the recording medium as a download content, a broadcast recording unit configured to record the broadcast program received via a broadcast wave to the recording medium as a broadcast content, and an erasing unit configured to erase the download content or the broadcast content recorded in the recording medium. The erasing unit determines whether the content can be erased or not based on attribute related to erasure of the content. The download recording unit sets the attribute related to erasure to a value indicating prohibition of erasure, when recording the download content to the recording medium. The broadcast recording unit sets the attribute related to erasure to a value indicating allowance of erasure, when recording the broadcast content to the recording medium.

Abstract: A method of registering access permission from a client apparatus into a server apparatus connected to one network, includes: notifying device information about the server apparatus to the client apparatus connected to the same network; starting reception of a registration request for access permission from the client apparatus to the server apparatus; counting a certain period starting from a point in time at which the reception of the registration request for access permission is started; determining whether the server apparatus which receives the registration request for access permission is selected from the client apparatus and the registration request for the access permission of the access to the selected server apparatus is received within the certain period; and registering the access permission for the client apparatus requesting for the registration of access permission into the server apparatus, when the registration request for access permission is received within the certain period.

Abstract: A recording and playback apparatus includes a recording unit configured to download a content stored in the server and to record the downloaded content in the recording medium, an instruction receiver configured to receive an instruction for turning off a power supply of the recording and playback apparatus, and a power controller configured to control supply of power to the recording and playback apparatus according to the instruction received by the instruction receiver. The power controller stops the supply of power to the recording and playback apparatus upon completion of the download of the content, when the instruction receiver receives an instruction for turning off the power supply during download of the content done by the recording unit.

Abstract: A recording and playback apparatus includes a recording unit configured to download a content stored in a server and to record the content in a recording medium, an instruction receiver configured to receive a stop instruction for stopping download of the content done by the recording unit, and a controller configured to control the recording unit. The controller controls the recording unit so as to stop the download of the content when the instruction receiver receives the stop instruction for stopping download of the content, and to restart the download of the content when a predetermined time elapses in which the recording unit is in a stop state of the download.

Abstract: A recording and playback apparatus can continue the playback of a content with playback time limit, even after the playback time limit expires during the playback of the content, and does not play back the content even though an instruction receiver receives a playback instruction when the playback of the content is stopped after the playback time limit of the content expires during the playback of the content with the playback time limit. The recording and playback apparatus outputs the warning information, when the instruction receiver receives the stop instruction after the playback time limit of the content expires during the playback of the content.

Abstract: A recording and playback apparatus including a recording unit configured to download additional information of a content stored in the server to perform a preparing operation for starting download of the content, and to download the content from the server upon completion of the preparing operation to record the downloaded content in the recording medium, and a display data creating unit configured to create data of a list image for displaying information of each content in all or part of contents stored in the recording medium. The display data creating unit creates the data of list image so that a list image displayed when the recording unit is downloading additional information is different from a list image displayed when the recording unit is downloading the content.

Abstract: A fixed form data broadcast playback apparatus 5 of the present invention has fixed form data broadcast playback means 108 that inserts predetermined data to fixed form data 300 from fixed form data storing means 111 with data inserting means 110, makes the resultant data into an MPEG transport stream by MPEG-TS means 109 and playbackly transmits the resultant to a digital broadcast receiver 3 via a digital interface 320. This construction enables to operate the fixed form data broadcast playback apparatus 5 even from a digital broadcast receiver that does not have a control function to the fixed form data broadcast playback apparatus 5, and further, enables to unify the operability of the screen and remote controller between the digital broadcast receiver 3 and the fixed form data broadcast playback apparatus.

Abstract: A recording/reproduction device is provided wherein service content having interactivity can be restored even when recorded. In recording mode, a transport stream from a receiving device 34 is received and a conversion device 36 converts this to a packet-multiplexed stream in a condition suitable for recording, which is then output as a converted stream. The conversion device 36 selects packets relating to a desired service from the transport stream and, of these packets, selects only packets needed for reproduction and uses these to generate a converted stream. A recording device 38 records this converted stream on a recording medium 44. In reproduction mode, the converted stream from recording medium 44 is read by means of a reading device 42 and supplied to a restoration device 40. Restoration device 40, in accordance with the content of this converted stream, restores and outputs a service content signal (for example a composite signal such as NTSC).

Abstract: A function managing apparatus allows a user to avoid a fault likely to occur in a user terminal before a new function is installed on the user terminal. A function managing apparatus for communicating with a user terminal is provided. Specifically, the function managing apparatus includes a receiving unit, predicting unit, and alerting unit. The receiving unit receives from the user terminal the new function ID identifying the new function to be installed on the user terminal, and the installed function IDs identifying one or more functions previously installed on the user terminal. The predicting unit specifies the new function and one or more installed functions based on the new function ID and installed function IDs received by the receiving unit, and predicts the result when the new function is installed on the user terminal. The alerting unit notifies the user terminal of the prediction result of the predicting unit.

Abstract: A receiving unit 101 repeatedly receives a transport stream, and a specifying unit 102 specifies a purchase state. A restoring unit 103 generates a first audio-digital (AV) signal and interactive data, and an AV reproducing unit 105 generates a second AV signal. A combining unit 106 generates a data-AV combined signal by combining the generated second AV signal and a data signal generated from the interactive data. A data presentation restricting unit 115 outputs the interactive data and a purchase state signal. A control unit 107 receives an operation signal from an inputting unit 110 and outputs it to a data operation restricting unit 116. A data analyzing unit 104 analyzes a presentation element contained in the interactive data and generates video data, which is the data signal. A data judging unit 117 judges whether a currently-presented presentation element is included in the same group as a presentation element that is a link destination of the presented presentation element.

Abstract: A manager or an issuer issues a participation certificate, for an ordinary user who will newly join a group formed on a network made up of specified users, on which the manager or issuer creates a digital signature by the use of a private key of the group. Members belonging to the group authenticate one another as belonging to the same group and as authorized members of the group, on the basis of their respective participation certificates.

Abstract: A memory card 13 includes wireless network communication unit for having electronic equipment to access a storage server 11 on a network. The storage server 11 includes at least a non-authentication area 111. Data such as contents is written into a non-authentication area of the memory card 13 or the non-authentication area 111 of the storage server 11. In other words, an area of a storage area to which data can be written is expanded by the non-authentication area 111 of the storage server 11. Thus, the non-authentication area of the memory card 13 increases apparently. Encoding key used for encoding and decoding contents protected by copyrights is written to an authentication area on the memory card 13. Anyone can access content data in the non-authentication area 111 of the storage server 11, but an encoding key required for decoding the content is in the memory card 13.

Abstract: A receiving unit 101 repeatedly receives a transport stream, and a specifying unit 102 specifies a purchase state. A restoring unit 103 generates a first audio-digital (AV) signal and interactive data, and an AV reproducing unit 105 generates a second AV signal. A combining unit 106 generates a data-AV combined signal by combining the generated second AV signal and a data signal generated from the interactive data. A data presentation restricting unit 115 outputs the interactive data and a purchase state signal. A control unit 107 receives an operation signal from an inputting unit 110 and outputs it to a data operation restricting unit 116. A data analyzing unit 104 analyzes a presentation element contained in the interactive data and generates video data, which is the data signal. A data judging unit 117 judges whether a currently-presented presentation element is included in the same group as a presentation element that is a link destination of the presented presentation element.

Abstract: To provide a terminal device capable of independently determining an occurrence of an event, and autonomously processing a service in response to the event. An event detection section (205) detects a predetermined event. A service retrieving section (206) retrieves a service corresponded to the detected event. A service execution section (207) determines an application program related to the retrieved service, and another terminal device which cooperatively executes the application program. Then, the service execution section (207) instructs an application management section (203) and an application execution section (204) of the own terminal device and the other terminal device to obtain and execute the program.

Abstract: 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.