摘要:
A security management method in multimedia middleware of a terminal that can download a multimedia service provided from an external entity. The security management method includes if there is an access request for a particular multimedia service, determining whether there is a corresponding multimedia service; if the access-requested multimedia service does not exist in middleware of the terminal, performing negotiation for secure session setup with the external entity; setting up a secure session to the external entity using a security parameter selected as a result of the negotiation; and receiving information for the download from the external entity through the secure session, and determining whether to execute the download.
摘要:
A security management method in multimedia middleware of a terminal that can download a multimedia service provided from an external entity. The security management method includes if there is an access request for a particular multimedia service, determining whether there is a corresponding multimedia service; if the access-requested multimedia service does not exist in middleware of the terminal, performing negotiation for secure session setup with the external entity; setting up a secure session to the external entity using a security parameter selected as a result of the negotiation; and receiving information for the download from the external entity through the secure session, and determining whether to execute the download.
摘要:
A multimedia middleware apparatus using metadata, a control method and a storage medium are provided which can receive metadata in multimedia middleware provided in a terminal, easily add/delete/change a service, and effectively maintain and manage middleware components. When an open multimedia terminal processes multimedia contents, a multimedia middleware service structure for expressing information of a name, configuration, version and application programming interface (API) update is configured in the form of metadata. Lists of standard and non-standard services of multimedia middleware are then generated and managed.
摘要:
A multimedia middleware apparatus using metadata, a control method and a storage medium are provided which can receive metadata in multimedia middleware provided in a terminal, easily add/delete/change a service, and effectively maintain and manage middleware components. When an open multimedia terminal processes multimedia contents, a multimedia middleware service structure for expressing information of a name, configuration, version and application programming interface (API) update is configured in the form of metadata. Lists of standard and non-standard services of multimedia middleware are then generated and managed.
摘要:
An apparatus and method for managing a preference channel are provided which can reduce a delay time when a channel change is made between preference channels, by storing a preference channel directly selected by a mobile terminal user in a mobile broadcast system. A mobile terminal receives and demultiplexes multiplexed logical channels on which data streams are transmitted from a service provider through a communication network. Preference channels of the demultiplexed logical channels are dynamically allocated to decoding buffers using stored information. A decoding time at which data of the decoding buffers is accessed and decoded is computed using reference information. A decoding operation is performed at the computed decoding time, and decoded channel-by-channel elementary streams are stored in a memory. The decoded channel-by-channel elementary streams stored in the memory are displayed on a screen of the mobile terminal.
摘要:
A method, apparatus and system are provided for controlling a scene structure of a mobile terminal for receiving and displaying data streams in a mobile broadcast system. When logical channels are multiplexed into one physical channel, the multiplexed channels are sequentially decoded and are displayed on an image. A channel circulation scene alternately displays the channels on one image in designated order. In a combination scene structure, a new node is added to a conventional Lightweight Application Scene Representation (LASeR) technology. To compose a scene, fields for time information and scene transition effect are provided. A delay time due to a channel change is reduced. A multi-channel image is effectively provided to address a problem when a user retrieves service content while directly switching a channel. The terminal dynamically composes the multi-channel image using stream source node information from a service provider without an additional mosaic channel.
摘要:
An apparatus and method for managing a preference channel are provided which can reduce a delay time when a channel change is made between preference channels, by storing a preference channel directly selected by a mobile terminal user in a mobile broadcast system. A mobile terminal receives and demultiplexes multiplexed logical channels on which data streams are transmitted from a service provider through a communication network. Preference channels of the demultiplexed logical channels are dynamically allocated to decoding buffers using stored information. A decoding time at which data of the decoding buffers is accessed and decoded is computed using reference information. A decoding operation is performed at the computed decoding time, and decoded channel-by-channel elementary streams are stored in a memory. The decoded channel-by-channel elementary streams stored in the memory are displayed on a screen of the mobile terminal.
摘要:
An apparatus and method are provided for receiving multiple streams. A group session structure is defined and streams are decoded according to the defined group session structure so that a single decoder can sequentially process demultiplexed streams allocated to multiple decoding buffers when multiple logical media streams are multiplexed into one physical stream in a mobile broadcast communication system based on Lightweight Application Scene Representation (LASeR).
摘要:
A method, apparatus and system are provided for controlling a scene structure of a mobile terminal for receiving and displaying data streams in a mobile broadcast system. When logical channels are multiplexed into one physical channel, the multiplexed channels are sequentially decoded and are displayed on an image. A channel circulation scene alternately displays the channels on one image in designated order. In a combination scene structure, a new node is added to a conventional Lightweight Application Scene Representation (LASeR) technology. To compose a scene, fields for time information and scene transition effect are provided. A delay time due to a channel change is reduced. A multi-channel image is effectively provided to address a problem when a user retrieves service content while directly switching a channel. The terminal dynamically composes the multi-channel image using stream source node information from a service provider without an additional mosaic channel.
摘要:
An apparatus and method are provided for receiving multiple streams. A group session structure is defined and streams are decoded according to the defined group session structure so that a single decoder can sequentially process demultiplexed streams allocated to multiple decoding buffers when multiple logical media streams are multiplexed into one physical stream in a mobile broadcast communication system based on Lightweight Application Scene Representation (LASeR).