Method of transmitting/receiving digital contents and apparatus for receiving digital contents

Abstract

A method of transmitting/receiving digital contents and an apparatus for receiving the digital contents are disclosed. In a system connected with an Internet protocol (IP) network, service event information may be included in a service discovery record and transmitted/received. Accordingly, the apparatus for receiving the digital contents can receive a service using the service event information in a service discovery step when receiving the service including the digital contents. Since the service event information can be processed independence of the digital contents included in the service, the service can be rapidly provided and unnecessary service event information does not need to be parsed.

What is claimed is: 
     
       1. A method of receiving digital broadcast contents through an internet network in accordance with an internet protocol (IP), the method comprising:
 receiving, from the internet network, a payload carrying a broadcast discovery record including service information (SI) describing a service associated with the digital broadcast contents, the broadcast discovery record including transmission identification information for identifying a transport stream carrying service event information of the service, wherein the transmission identification information is link information between the service event information and the service and wherein the link information includes a network identifier, a transport stream identifier, and a service identifier;   parsing the payload to obtain the transmission identification information;   receiving, from the internet network, the transport stream including the service event information by using the transmission identification information; and   parsing the transport stream to obtain the service event information.   
     
     
       2. The method according to  claim 1 , wherein the service event information includes at least one of information indicating whether an event of the service event information is a present event or a following event, information for identifying a service event, information indicating a start time of the service event, information indicating a duration of the event, information indicating a running status of the event, and information indicating which one of the service event information in a transport stream and the service event information in extensible markup language (XML) format takes priority. 
     
     
       3. The method according to  claim 1 , wherein the service event information includes at least one of information indicating a name of the service event information, information describing the service event information, information for identifying the payload when a payload that includes detailed information of the event is present, information describing components including the digital broadcast contents associated with the service, information indicating replacement event information with which the service event information is replaced, and information indicating a parental rating of the service. 
     
     
       4. The method according to  claim 3 , wherein the information describing the components including the digital broadcast contents associated with the service includes information on a stream component included in a transport stream different from a transport stream of the digital broadcast contents. 
     
     
       5. The method according to  claim 3 , wherein the information describing the components including the digital broadcast contents associated with the service includes information on a stream component which can be received from a uniform resource identifier (URI) different from a URI of an IP packet of the digital broadcast contents. 
     
     
       6. The method according to  claim 3 , wherein the information indicating the replacement event information with which the service event information is replaced, includes a textual identifier which can receive the replacement event information and a stream identifier on a network which can receive the replaced event information. 
     
     
       7. An apparatus receiving a service associated with digital broadcast contents through an internet network in accordance with an internet protocol (IP), the apparatus comprising:
 an interface configured to receive a payload and a transport stream from the internet network, wherein the payload carries a broadcast discovery record including service information (SI) describing a service associated with the digital broadcast contents, the broadcast discovery record including transmission identification information for identifying a transport stream carrying service event information of the service and wherein the transmission identification information is link information between the service event information and the service and the transmission identification information includes a network identifier, transport stream identifier, and service identifier in a transmission system;   an IP manager configured to parse the payload and parse the transport stream using the transmission identification information parsed from the payload;   a service discovery manager configured to obtain the service event information from the transport stream using the transmission identification information;   a decoder configured to decode the service event information;   a controller configured to control the obtained service event information and the decoded digital broadcast contents to be output; and   a display configured to output the service event information and the digital broadcast contents according to a control signal of the controller.   
     
     
       8. The apparatus according to  claim 7 , the service event information includes at least one of information indicating whether an event of the service event information is a present event or a following event, information for identifying a service event, information indicating a start time of the service event, information indicating a duration of the event, information indicating a miming status of the event, and information indicating which one of the service event information in a transport stream and the service event information in extensible markup language (XML) format takes priority. 
     
     
       9. The apparatus according to  claim 7 , wherein the service event information includes at least one of information indicating a name of the service event information, information describing the service event information, information for identifying the payload when a payload that includes detailed information of the event is present, information describing components including the digital broadcast contents associated with the service, information indicating replacement event information with which the service event information is replaced, and information indicating a parental rating of the service. 
     
     
       10. The apparatus according to  claim 9 , wherein the information describing the components including the digital broadcast contents associated with the service includes information on a stream component included in a transport stream different from a transport stream of the digital broadcast contents. 
     
     
       11. The apparatus according to  claim 9 , wherein the information describing the components including the digital broadcast contents associated with the service includes information on a stream component which can be received from a uniform resource identifier (URI) different from a URI of an IP packet for transmitting the digital broadcast contents. 
     
     
       12. A method of transmitting digital broadcast contents included in a service in a system connected by an internet protocol (IP) network, the method comprising:
 generating a service discovery record including service event information of the service, and   transmitting the service discovery record through the IP network when the generated service discovery record is requested through the IP network, the service discovery record including service information (SI) describing a service associated with the digital broadcast contents and being carried via a payload, wherein the service discovery record has transmission identification information for identifying a transport stream carrying service event information of the service,
 wherein the service discovery record and the service event information are separately transmitted, wherein the transmission identification information links the service event information with the service associated with the digital broadcast contents, and wherein the transmission identification information is link information between the service event information and the service, and the transmission identification information includes a network identifier, transport stream identifier, and service identifier in a transmission system. 
   
     
     
       13. The method according to  claim 12 , further comprising: transmitting the digital broadcast contents through the IP network, when the digital broadcast contents related to the service discovery record are requested through the IP network. 
     
     
       14. A method of receiving digital broadcast contents in accordance with an internet protocol (IP), the method comprising:
 receiving a payload carrying service discovery information including service information (SI) describing a service associated with the digital broadcast contents, the service discovery information including transport stream identification information identifying a transport stream carrying service event information of the service,   wherein the service discovery information including the transport stream identification information is used for linking the service event information to the service; and   after receiving the transport stream identification information, receiving the transport stream including the service event information of the service by using the transport stream identification information,   wherein the service discovery information includes information for specifying a type of the service and information for indicating a name of the service,   wherein the type of the service corresponds to an audio/video service or audio only service.   
     
     
       15. The method according to claim 14, wherein the service event information includes at least one of information indicating whether an event of the service event information is a present event or a following event, information for identifying a service event, information indicating a start time of the service event, information indicating a duration of the event, information indicating a running status of the event, and information indicating which one of the service event information in a transport stream and the service event information in extensible markup language (XML) format takes priority. 
     
     
       16. The method according to claim 14, wherein the service event information includes at least one of information indicating a name of the service event information, information describing the service event information, information for identifying the payload when a payload that includes detailed information of the event is present, information describing components including the digital broadcast contents associated with the service, information indicating replacement event information with which the service event information is replaced, and information indicating a parental rating of the service. 
     
     
       17. The method according to claim 16, wherein the information describing the components including the digital broadcast contents associated with the service includes information on a stream component which can be received from a uniform resource identifier (URI) different from a URI of an IP packet of the digital broadcast contents. 
     
     
       18. The method according to claim 16, wherein the information indicating the replacement event information with which the service event information is replaced, includes a textual identifier which can receive the replacement event information and a stream identifier on a network which can receive the replaced event information. 
     
     
       19. A method of transmitting digital broadcast contents included in a service in a system connected by an internet protocol (IP) network, the method comprising:
 generating service discovery information including service event information of the service, and transmitting the service discovery information through the IP network when the generated service discovery information is requested through the IP network, the service discovery information including service information (SI) describing a service associated with the digital broadcast contents and being carried in a payload,   wherein the service discovery information has transport stream identification information for identifying a transport stream carrying service event information of the service,   wherein the service discovery information and the service event information are separately transmitted,   wherein the service discovery information including the transport stream identification information that links the service event information with the service associated with the digital broadcast contents, and   wherein the service discovery information including the transport stream identification information is used for linking the service event information to the service.   
     
     
       20. The method according to claim 19, further comprising: transmitting the digital broadcast contents through the IP network, when the digital broadcast contents related to the service discovery information are requested through the IP network.