Abstract: An image coding method includes: dividing a picture into tiles; coding the tiles to generate pieces of coded data each of which corresponds to a different one of the tiles; and generating a bitstream including the pieces of coded data. The coding of the tiles includes: generating a first code string by coding a first tile which is one of the tiles, without referring to coding information used in coding another one of the tiles; and adding a bit string after the first code string to make a bit length of first coded data which is one of the pieces of coded data, a multiple of a predetermined N bits, N being an integer greater than or equal to 2.

Abstract: A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.

Abstract: A switch instruction is transmitted from a PC terminal to a portable PC terminal; the portable PC terminal transmits a switch connection request to a portable communication terminal on the other end of communication; the portable PC terminal, when it is waiting for a response to the switch connection request and receives a switch connection request from the other end of communication, detects that switching processes are being performed simultaneously; upon detection of the simultaneous switching, a switching session related to either switch connection request is determined to be continued; the portable PC terminal, which received the switch connection request to which the switching session determined to be continued was related, transmits a success response including information on the switching process of the portable PC terminal side; and the PC terminal, which received the switch connection request to which the one to be stopped was related, transmits a failure response.

Abstract: When a switching target device receives a media output indication from a sender device, a switch connects with contact B, which causes all image data stored in an extended media buffer to be inputted in a decoder, starting from the first frame (which is an I-frame) of the image data. The decoder decodes the image data, starting from the I-frame, and stores a reconstructed image in a reconstructed-image buffer. A reconstructed image required for decoding video picture data outputted from a media buffer is held in the reconstructed-image buffer. Thus, when device switching occurs, the decoder can immediately start decoding regardless of whether video picture data inputted from the media buffer is an intraframe.

Abstract: A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.

Abstract: A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.

Abstract: Provided is a terminal device that can make an external display device show an enlarged website screen for every object to improve user convenience. A terminal device (103) is a mobile terminal device that can be connected with an external display device (104). The terminal device is provided with an information acquisition unit (203) that acquires information which is used for displaying a website screen and is comprised of an object including a parameter for specifying a screen size of the website screen, a parameter change unit (207) that changes the parameter so as to increase the screen size, a data processing unit (211) that carries out decoding process of the object, thereby generating screen information of the screen size specified by the changed parameter, and a communication unit (214) that outputs the generated screen information to the external display device (104).

Abstract: Provided is a display controller which prevents the duplication of functional parts and the duplication of processes, and displays dynamic content on a plurality of displays. A portable terminal (400) used as the controller has a shared dynamic image decoder (409) which decodes the dynamic content and stores the decoded dynamic content in a frame buffer (406) used by the terminal, a buffer transfer unit (408) which sends the dynamic content stored in the frame buffer (406) used by the terminal to a frame buffer (411) used by an external monitor, a terminal display unit (407) which displays the dynamic content stored in the frame buffer (406) used by the terminal on the display of the terminal, and an external monitor interface (412) which displays the dynamic content stored in the frame buffer (411) used by the external monitor on an external monitor (500).

Abstract: A relay device (40) comprises: an NW interface (408) for making a connection with a switching source terminal (20) that is receiving media data transmitted from a media server (10) and with a switching destination terminal (30); an information storage (403) for storing a media data processing capacity of the switching source terminal (20) and switching destination terminal (30); a media controller (401) for making a transmission request to the media server (10) for media data corresponding to the above processing capacity in the information storage (403), and for acquiring the above processing capacity of the switching destination terminal (30) from the information storage (403) and instructing to transfer the media data corresponding to the acquired processing capacity to the switching destination terminal (30); a media receiver (404) for receiving the media data transmitted from the media server (10); a media buffer (405) for holding the media data; and a media transmitter (406) for acquiring from the media

Abstract: A session mobility for moving a session held between a switching source device and a communication counterpart to a switching destination device other than the switching source device. The switching source device transmits media data relating to a session by multicast or broadcast prior to device switching. The switching destination candidate device receives the transmitted media data, and thereby switching destination determined device, in replace of the switching source device, outputs media data. Thus, a switching time from a switching source device to a switching destination device can be made fast such that a user cannot perceive it.

Abstract: A device in a PAN 7 having a plurality of devices 1 to 6 connected by short range communication whose network configuration dynamically changes is provided. A cellphone 1 includes a discovery function to discovery the devices 2 to 6 for a device capable of carrying out prescribed processing based on a request for execution of the prescribed processing from the cellphone 1 and a transmission control function to transmit output control information for outputting a notice indicating the capability of carrying out the prescribed information to the devices found by the discovery.

Abstract: A server (101) streams data coded by inter-frame prediction. The server (101) comprises: a transmission data generator (116) for causing an independently decodable key frame to be added with at least one difference frame following the key frame to create data of one transmission unit, and generating a buffering key frame added with information on the data of one transmission unit, the information including a frame number; and an output unit (114) for transmitting, with transmission timing of the key frame, a buffering key frame generated with a key frame that should be transmitted with the transmission timing, and transmitting an arbitrary frame with transmission timing of the difference frame. This can reduce buffering time for switching a terminal to play a stream between a plurality of terminals, allowing the switching to be done smoothly.

Abstract: A switch instruction is transmitted from a PC terminal (105) to a portable PC terminal (107) (S302); the portable PC terminal (107) transmits a switch connection request to a portable communication terminal (102) on the other end of communication (S306); the portable PC terminal (107), when it is waiting for a response to the switch connection request and receives a switch connection request from the other end of communication, detects that switching processes are being performed simultaneously (S312); upon detection of the simultaneous switching, a switching session related to either switch connection request is determined to be continued (S314 and S315); the portable PC terminal (107), which received the switch connection request to which the switching session determined to be continued was related, transmits a success response including information on the switching process of the portable PC terminal (107) side (S316 and S319); and the PC terminal 101, which received the switch connection request to which

Abstract: A protocol for extending session endpoints in an ad-hoc network environment first performs device discovery to determine local devices within its coverage area and the capability of those devices. These local devices then exchange session descriptions with the endpoint device. If the current session may be supported by one of the local devices, the endpoint device, responsive to a command from an user, transfers the session endpoint to the local device and the endpoint device acts as a proxy for the local device in the session. Optionally, if the local device has a path to the correspondent node that is independent of the path through the endpoint device, it establishes the session along this path and then signal the endpoint node to terminate its session.

Abstract: A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.

Abstract: A session mobility for moving a session held between a switching source device and a communication counterpart to a switching destination device other than the switching source device. The switching source device transmits media data relating to a session by multicast or broadcast prior to device switching. The switching destination candidate device receives the transmitted media data, and thereby switching destination determined device, in replace of the switching source device, outputs media data. Thus, a switching time from a switching source device to a switching destination device can be made fast such that a user cannot perceive it.

Abstract: An object of the invention is to present service selection to the user immediately when it is made possible to realize a new service with a communication terminal of an associated party. A communication terminal 100 enables the user to use a communication service using a peripheral equipment within a communication range with an associated terminal connected through a network and includes a total control section 104 having a capability information change notification unit for notifying the associated terminal of occurrence of change in the peripheral equipment within the communication range and a service candidate determination unit for determining an available communication service with the associated terminal when change in the peripheral equipment occurs.

Abstract: A transfer-source terminal, a communication-destination terminal, and a nearby terminal existing in the neighborhood of transfer-source terminal are provided. The nearby terminal collects connectivity information for monitoring connectivity after terminal switching by performing a communication process with the communication-destination terminal, and transmits the connectivity information collected to the transfer-source terminal. The transfer-source terminal receives connectivity information from the nearby terminal by a connectivity information receiving unit, determines a transfer-destination terminal from among the nearby terminals according to connectivity information by a transfer-destination terminal determinating unit, and transfers a communication session with a communication-destination terminal to the transfer-destination terminal determined, by a session transferring unit.

Abstract: When a switching target device receives a media output indication from a sender device, a switch (401) connects with contact B, which causes all image data stored in an extended media buffer (402) to be inputted in a decoder (201), starting from the first frame (which is an I-frame) of the image data. The decoder (201) decodes the image data, starting from the I-frame, and stores a reconstructed image in a reconstructed-image buffer (202). A reconstructed image required for decoding video picture data outputted from a media buffer (2108) is held in the reconstructed-image buffer (202). Thus, when device switching occurs, the decoder (201) can immediately start decoding regardless of whether video picture data inputted from the media buffer (2108) is an intraframe.

Abstract: A method for transforming a first data sequence, generated by a first moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on a block unit basis to a second data sequence, generated by a second moving picture coding system that switches an intra-frame coding mode and in inter-frame coding mode on the block unit basis. The method includes increasing the number of blocks to be coded by the intra-frame coding mode in the second moving picture coding system when a generated code amount of the second data sequence is less than a target value.