Abstract: Provided are a time shift service apparatus and method based on multimedia information, and a multimedia reproducing apparatus using the same. The timeshift service apparatus includes: a timeshift buffering unit for storing a multimedia stream according a timeshift service requested from an outside device; a time obtaining unit for obtaining time information about times of starting and ending a timeshift service according to the timeshift service request; a memory managing unit for storing a multimedia stream, which is serviced based on the obtained time information by the time obtaining unit, in the timeshift buffering unit; and an information generating unit for generating detailed information for the multimedia stream stored in the timeshift buffering unit.

Abstract: There is a provided a method for providing contents referencing information (CRI) for personal data broadcasting service, including the steps of: searching a program identifier (PID) having a CRI section, and searching a container having a specific identifier; extracting container data from the searched container; searching a CRI structure which indicates a contents referencing information identifier (CRID) list from the extracted container data; searching and extracting CRID data based on a CRID data container which represents an identifier of the container having the CRID data in the CRID list of the searched CRI structure; and searching and extracting result data for the extracted CRID from a result locator.

Abstract: A membrane-electrode assembly for a fuel cell including a first substrate and a second substrate and a catalyst layer between the first substrate and the second substrate is provided, where the first substrate is a polymer electrolyte membrane and the second substrate is a electrode substrate, or the first substrate is the electrode substrate and the second substrate is the polymer electrolyte membrane. The catalyst layer has a h1/t1 ratio of about 0.5 or more, where s1 represents a point on the first substrate at one end of the catalyst layer, h1 represents a distance between the first substrate and the second substrate, s2 represents a point on the first substrate closest to s1 at which a height (h) of the catalyst layer becomes h1, and t1 represents the distance between the s1 and the s2. The membrane-electrode assembly can include a greater amount of catalyst by decreasing a shadow effect, and thereby increasing its energy density.

Abstract: The membrane-electrode assembly for a fuel cell according to an embodiment includes an anode and a cathode facing each other, and a polymer electrolyte membrane interposed therebetween. At least one of the anode and cathode includes an electrode substrate, a microporous layer disposed on the electrode substrate, and a catalyst layer disposed on the microporous layer. The catalyst layer includes a catalyst and a binder resin, and the binder resin has an average chain length ranging from about 5 to about 30 nm. According to the embodiment, a membrane-electrode assembly can be easily prepared without firing and can be prevented from distorting, improving cell characteristics.

Abstract: Provided is a system and method for providing a personalized data broadcasting service, a user terminal and method for using a personalized data broadcasting service, and a data broadcasting application structure therefor, to provide a desired broadcasting service to a viewer anytime and anywhere by using diverse terminals. The user terminal includes: a data broadcasting middleware for receiving unidirectional data broadcasting contents transmitted through a broadcasting network; a personalized broadcasting middleware for receiving bidirectional data broadcasting contents transmitted through a communication network; and a contents storing means for storing the unidirectional data broadcasting contents and the bidirectional data broadcasting contents, wherein the data broadcasting middleware executes the unidirectional data broadcasting contents and bidirectional data broadcasting contents.

Abstract: A membrane-electrode assembly for a fuel cell, a method of preparing the membrane-electrode assembly, and a fuel cell system including the membrane-electrode assembly are provided. The membrane-electrode assembly includes an anode and a cathode disposed opposite to each other, and a polymer electrolyte membrane interposed between the anode and the cathode. The polymer electrolyte membrane includes surface roughness, and a metal layer randomly formed on at least one side of the membrane.

Abstract: Provided is a personalized data broadcasting service, more particularly, a metadata scheme for a personalized data broadcasting service, a data broadcasting service providing method using the metadata scheme, and a system thereof. A metadata forming method of the present research includes the steps of: a) generating an interactive content service (InteractiveContentService) element which describes whether a data broadcasting is a uni-directional service or a bi-directional service; b) generating a rendering style (RenderingStyle) element which describes properties of the data broadcasting displayed on a screen of a user; c) generating an update cycle (UpdateCycle) element which describes a content update period of the data broadcasting; and d) generating a package, an item or a component on the data broadcasting service information including the three elements generated above.

Abstract: The present invention relates to extend metadata for providing a digital broadcast program service to diverse kinds of terminals, and a system and method for providing an adaptive program service to the terminals by using the extended metadata. The system and method performs integrated management of resource information suitable for a combination of all (terminal, program and user) conditions of the personal terminal, manages resource-related information separately from temporal/spatial location information, and thus provides an adaptive program service by using extended metadata and recomposing an adaptive scene for a personal terminal so as to provide the digital broadcast service adaptively to diverse terminal environments on a home network.

Abstract: Provided is a personal channel service method and apparatus for providing a program preferred by a user in a preferred time duration by extracting the preferred time duration and the preferred program based on usage history of a personal digital recorder (PDR). The personal channel service providing method includes the steps of: a) receiving content description data and instance description data of a program to be broadcasted through a TV network; b) determining the preferred duration and the preferred program in the preferred duration based on usage history of the PDR, and updating the instance description data to include the preferred duration and the preferred program; c) generating an electronic program guide (EPG) for informing the user that the preferred program is outputted on the personal channel in the preferred duration based on the updated instance description data; and d) outputting the EPG to the PDR.

Abstract: There is disclosed a method of retrieving moving pictures using joint point based moving information for allowing an user to retrieve pictures including a desired person object or the pose of the person object for still picture/moving picture data of multimedia data. The method of retrieving moving pictures using joint points based on pose information according to the present invention comprises the steps of extracting and expressing joint points for the joint point model against pictures where a major person exists from moving pictures or still pictures which are the object of retrival by means of joint points model based indexing apparatus, and retriving the person object according to the joint points extracted by said joint point model based indexing apparatus.

Abstract: An automatic-shift circuit for a sub-picture screen for PIP feature is disclosed. The circuit includes;a brightness signal separator device for separating only the brightness signal from the composite video signal for the main picture screen; a brightness level comparison device for selecting the character brightness level and the width thereof from the separated brightness signals; and a identical position comparison device for determining whether the character brightness width is detected at the identical position. The circuit also includes a device for setting the vertical and the horizontal timing; a counter for counting the field number where character brightness width is detected at the identical position and for generating the automatic shifting signal if the field number counted is beyond the predetermined value; and a microcomputer for controlling the PIP processing unit so as to shift the sub-picture screen upon receipt of the automatic shifting signal.