Hitachi, Ltd.

Maxell, Ltd.

Other

Hitachi Consumer Electronics Co., Ltd.

Akira Date

Masahiro Kageyama

Tamotsu Ito

Akira Tanaka

Hideki Kamimaki

Tomoyuki Okada

Kaoru Murase

Masashi Yano

Nobuhiro Fukuda

Ui Yamaguchi

Hidenori Sakaniwa

Taizo Kinoshita

Takashi Kanemaru

Takumi Oishi

Hiroki Miyamoto

Nobuhiro Sekimoto

Mariko Yamada

A method of reproducing audio content between a main terminal including a first speaker and a plurality of subsidiary terminals including a second speaker. Device specific identification (ID) information of the subsidiary terminals and association information for transmitting one of the audio data of the audio content to one of the subsidiary terminals are stored. The association information defines that one of the audio data of the audio content is associated with one of the device specific ID information. The subsidiary terminals transmit/receive with the main terminal and the device specific ID information is transmitted from the subsidiary terminals to the main terminal when connecting to the main terminal. The encoded audio data of the audio content is transmitted to the subsidiary terminals based on the association information, then is decoded and the subsidiary terminals output the audio data to the second speaker.

Contents receiving system and client

A contents receiving system can include a content receiver and a portable terminal storing ID information. The content receiver can further include: a receiving unit capable of receiving content and subsidiary content from at least one of a broadcast wave and a network; an output unit capable of outputting, as audio video content, a video and/or audio of the content received by the receiving unit; a transmission unit capable of transmitting the subsidiary content to the portable terminal, the transmission unit enabling information on a payment transaction corresponding to an ID information of the portable terminal to be transmitted to the portable terminal individually, the portable terminal including: a second transmission unit capable of receiving the subsidiary content and the information on the payment transaction transmitted from the transmission unit of the content receiver; and a processing unit for performing a processing regarding the payment transaction.

A pulse detection method resistant to changes in an imaging environment is provided. A biological information detection device includes an imaging unit that images reflected light from a target object and outputs a video signal including a plurality of wavelength components, a reflected light analysis unit that obtains a wavelength and an intensity of the reflected light from the video signal, a wavelength fluctuation detection unit that detects difference between the wavelength of the reflected light of each time and the wavelength of the reflected light of a time before each of the time, and a pulse detecting unit that detects a change in accordance with a time of the detected difference as a pulse.

Biological information detection device and biological information detection method

A contents receiving system uses a digital broadcast wave or a broadband network to enable a user to suitably view main content, and provide a user with subsidiary content information desired by the user. Each of subsidiary content control receivers A (), B () transmits ID information specific to each of the subsidiary content control receivers A (), B (), and a request for acquiring subsidiary content, from a communication control unit () to a main content receiving display unit. The main content receiving display unituses a content separation control unit () to separate a stream into subsidiary content corresponding to the request. Then, a request information input/transmission control unit () transmits the separated subsidiary content and the received ID information to the subsidiary content control receiver in question. The subsidiary content control receiver judges from the ID information that the subsidiary content should be acquired.

In hybrid peer-to-peer type content delivery, a server confirms user's intension as to content disclosure, guarantees content delivery by mutual authentication between a client to which content has been delivered and a client to which content has not been delivered, and guarantees the integrity of content having been delivered. Further, the server configures delivery connection based on the network relationship between the clients and priority factors taking account of a reservation status.

Content delivery method, server, and terminal

A playback apparatus for playing back picture information from a storage medium storing one or more still pictures and still picture group management information for managing one or more still pictures as a still picture group. The apparatus includes a device for reading out the still picture group management information from the storage medium; and a memory for storing the still picture group management information read out from the storage medium. The still picture group management information is classified into a first type of still picture management information, a second type of still picture management information, a third type of still picture management information, or a fourth type of still picture management information. The still picture group management information includes still picture management information having a data size designated by the type.

Apparatus for playing back still picture stored in storage medium based on still picture management information

A computer-readable storage medium storing thereon a procedure for controlling a computer to play back a storage medium storing one or more still pictures and still picture group management information for managing one or more still pictures as a still picture group. The procedure including reading out the still picture management information from the still picture group management information in said storage medium. The still picture group management information is classified into a first type of still picture management information, a second type of still picture management information a third type of still picture management information on a still picture with only a post-recorded audio added to the still picture already recorded, or a fourth type of still picture management information. The still picture management information has a data size designated by the type.

Computer readable storage medium for storing still picture and still picture management information

The invention provides a method for selecting a communication IP address whereby traffic of a network can be reduced and a session with the partner of communication can be maintained even when the mobile node has moved. The method prescribes provision of means for judging a state of a foreign network to which the mobile node is connected, and means of monitoring an IP address that an application having been started by the mobile node is using for communication, and enables selection of the mobile IP address so that the mobile node can maintain the session surely even in a visited foreign network.

Packet communication system, communication network, and method for selecting IP address in mobile node

A recording apparatus for recording one or more still pictures and still picture group management information for managing the one or more still pictures as a still picture group onto a storage medium and a storage medium therefor. A memory is provided which stores the still picture group management information. Apparatus is provided which records the still picture group management information stored in the memory to the storage. When the still picture is recorded, apparatus is provided which selects first still picture management information or selects second still picture management information in accordance with audio, and apparatus which records the first or second still picture management information in the still picture group management information in the same order of recording corresponding still pictures.

Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage medium

A method for recording still picture group management information for managing one or more still pictures as a still picture group onto a storage medium. The method includes recording still picture management information in the still picture group management information in the same order of recording corresponding still pictures. The still picture management information is classified into types of still picture management information including a first type of still picture management information, a second type of still picture management information, a third type of still picture management information, and a fourth type of still picture management information. The still picture management information also has a data size designated by the type.

Method for recording still picture group management information

A recording medium and a recording/playback unit which use with the recording medium. The recording medium comprises a still image data area capable of storing a plurality of still image data pieces therein and an area storing still image set management information therein for managing a part or the whole of the still image data in the still image data area as one still image set. Each still image set has the corresponding still image set management information.

Optical disk recording still image data, a method and apparatus for recording and playing back still image data to and from the optical disk

A computer readable storage medium being capable of recording a large amount of still picture data thereon, allowing users to make a search based on recording times, and reducing the data size of recording time information, a recording apparatus, and a playback apparatus. When recording still pictures on a large-capacity storage medium, management information on recording times becomes so large that it becomes hard for the recording apparatus and the playback apparatus to process. To minimize the amount of data for managing still picture recording times, N (N is an integer equal to or larger than 1.) still pictures are grouped and, for each group, a first still picture recording time (F_RECTM) and a last still picture recording time are recorded as management information.

In a digital data transmission system of the present invention, the total transmission rate which changes with the passage of time in a plurality of video/audio signals multiplexed with a plurality of digital data on a transmission path is monitored without allocation of individual transmission rates to the plurality of video/audio signals so that encoders are controlled only when the total transmission rate exceeds the maximum transmission rate. Further, the plurality of digital data are transmitted within a range of the residual transmission rate obtained by subtracting the total transmission rate of the plurality of video/audio signals from the maximum transmission rate in the transmission path, whereby real-time transmission of video/audio signals and transmission of digital data can be made consistent with each other on one transmission path without reduction in video/audio quality of the transmitted video/audio signals.

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Kunitachi, Japan

Akira Date