A method for broadcasting protected multimedia content includes, at predetermined intervals, having an access-rights server broadcast each new right of access to the broadcast multimedia content only to those terminals whose logins are included in a broadcast list. In response to a predetermined event, a terminal sends, to the access-rights server, via a point-to-point connection, a status message indicating, to the access-rights server, that the terminal is in its ready state. Alternatively, if the terminal is occupied, it avoids sending a status message. In the absence of reception of the status message that was expected in response to the predetermined event, the access-rights server automatically removes the identifier of the terminal from the broadcast list.

A method for broadcasting protected multimedia content includes, at predetermined intervals, having an access-rights server broadcast each new right of access to the broadcast multimedia content only to those terminals whose logins are included in a broadcast list. In response to a predetermined event, a terminal sends, to the access-rights server, via a point-to-point connection, a status message indicating, to the access-rights server, that the terminal is in its ready state. Alternatively, if the terminal is occupied, it avoids sending a status message. In the absence of reception of the status message that was expected in response to the predetermined event, the access-rights server automatically removes the identifier of the terminal from the broadcast list.

A method for a seamless transfer of a secure multimedia conference session from one endpoint device to another without a need to rekey the session is provided. In this method, a first endpoint device connects a participant to a multimedia conference session to which at least one other participant is connected and based on detecting one or more second endpoint devices within a predetermined location proximity of the first endpoint device, determines whether to transfer the multimedia conference session to a target endpoint device. Based on determining that the session is to be transferred, the first endpoint device establishes a secure pairing connection directly with the target endpoint device and provides, via the secure pairing connection, information about the multimedia conference session based on which the multimedia conference session is transferred to the target endpoint device without rekeying the multimedia conference session.

A method for a seamless transfer of a secure multimedia conference session from one endpoint device to another without a need to rekey the session is provided. In this method, a first endpoint device connects a participant to a multimedia conference session to which at least one other participant is connected and based on detecting one or more second endpoint devices within a predetermined location proximity of the first endpoint device, determines whether to transfer the multimedia conference session to a target endpoint device. Based on determining that the session is to be transferred, the first endpoint device establishes a secure pairing connection directly with the target endpoint device and provides, via the secure pairing connection, information about the multimedia conference session based on which the multimedia conference session is transferred to the target endpoint device without rekeying the multimedia conference session.

A digital broadcast receiving apparatus capable of executing a function with a higher added value is provided. A broadcast receiving apparatus configured to receive broadcasting data on digital broadcasting is used. The broadcast receiving apparatus includes: a broadcast receiving unit configured to receive broadcasting data containing coded video data regarding a broadcasting program of the digital broadcasting and control information for the broadcasting program; a video decoding unit configured to decode the coded video data received by the broadcast receiving unit to reproduce program video information; a display unit configured to display the program video information reproduced by the video decoding unit; a communication unit configured to transmit viewing permission request data to a predetermined portable information terminal in a case where a broadcasting program that a user of the broadcast receiving apparatus desires to view is a program on which viewing limit is to be imposed, the communication unit being configured to receive response data from the portable information terminal, the response data responding to the viewing permission request data; an authentication information storing unit configured to store terminal identification information and authentication information, the predetermined portable information terminal being allowed to be identified by the terminal identification information; and a control unit. The control unit is configured to: control the video decoding unit or the display unit so as not to limit viewing of the broadcasting program that the user of the broadcast receiving apparatus desires to view in a case where the response data received by the communication unit indicates a display permission response and both of terminal identification information and authentication information contained in the display permission response respectively coincide with the terminal identification information and the authentication information stored in the authentication information storing unit; and control the video decoding unit or the display unit so as to limit the viewing of the broadcasting program that the user of the broadcast receiving apparatus desires to view in a case where any of the terminal identification information and the authentication information contained in the display permission response does not coincide with corresponding one of the terminal identification information and the authentication information stored in the authentication information storing unit even though the response data received by the communication unit indicates the display permission response.

A digital broadcast receiving apparatus capable of executing a function with a higher added value is provided. A broadcast receiving apparatus configured to receive broadcasting data on digital broadcasting is used. The broadcast receiving apparatus includes: a broadcast receiving unit configured to receive broadcasting data containing coded video data regarding a broadcasting program of the digital broadcasting and control information for the broadcasting program; a video decoding unit configured to decode the coded video data received by the broadcast receiving unit to reproduce program video information; a display unit configured to display the program video information reproduced by the video decoding unit; a communication unit configured to transmit viewing permission request data to a predetermined portable information terminal in a case where a broadcasting program that a user of the broadcast receiving apparatus desires to view is a program on which viewing limit is to be imposed, the communication unit being configured to receive response data from the portable information terminal, the response data responding to the viewing permission request data; an authentication information storing unit configured to store terminal identification information and authentication information, the predetermined portable information terminal being allowed to be identified by the terminal identification information; and a control unit. The control unit is configured to: control the video decoding unit or the display unit so as not to limit viewing of the broadcasting program that the user of the broadcast receiving apparatus desires to view in a case where the response data received by the communication unit indicates a display permission response and both of terminal identification information and authentication information contained in the display permission response respectively coincide with the terminal identification information and the authentication information stored in the authentication information storing unit; and control the video decoding unit or the display unit so as to limit the viewing of the broadcasting program that the user of the broadcast receiving apparatus desires to view in a case where any of the terminal identification information and the authentication information contained in the display permission response does not coincide with corresponding one of the terminal identification information and the authentication information stored in the authentication information storing unit even though the response data received by the communication unit indicates the display permission response.

A method and system for datacasting and content management. Such a system may have, as its core, a dashboard system for managing data feeds. A dashboard system may receive data feeds from one or more associated devices, such as the hardware devices of first responders or other public safety officers, and may aggregate and prioritize them. The dashboard system may then manage, prioritize and encrypt the video, files and other data in preparation for broadcast over the television or satellite transmitter, via, for example, a television broadcasting station, and may then broadcast the video, files, or other data to a plurality of users. Alerts and notifications may be created, files attached and links to video streams distributed over this same broadcast network. The broadcasting system may be able to send multiple streams of content simultaneously, may be able to target specific users to be broadcast to, and may be able to incorporate data from public data sources, such as public security cameras.

A method of constructing and handling a request for a desired data file relating to a broadcast segment of a broadcast signal is described. The method comprises receiving an information signal at a receiving device. The information signal comprises at least a data element, and the data element relates to a segment of the broadcast signal. The method also comprises presenting the data element to a user interface of the receiving device, obtaining a user selection of the data element from the user interface, and constructing and transmitting a request for the desired data file relating to the selected data element, the request including an identifier relating to the desired data file.

A method of constructing and handling a request for a desired data file relating to a broadcast segment of a broadcast signal is described. The method comprises receiving an information signal at a receiving device. The information signal comprises at least a data element, and the data element relates to a segment of the broadcast signal. The method also comprises presenting the data element to a user interface of the receiving device, obtaining a user selection of the data element from the user interface, and constructing and transmitting a request for the desired data file relating to the selected data element, the request including an identifier relating to the desired data file.

A method of constructing and handling a request for a desired data file relating to a broadcast segment of a broadcast signal is described. The method comprises receiving an information signal at a receiving device. The information signal comprises at least a data element, and the data element relates to a segment of the broadcast signal. The method also comprises presenting the data element to a user interface of the receiving device, obtaining a user selection of the data element from the user interface, and constructing and transmitting a request for the desired data file relating to the selected data element, the request including an identifier relating to the desired data file.