METHOD AND APPARATUS FOR ACCESSING SERVICE DISCOVERY METADATA
First Claim
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1. A discovery metadata accessing method of a requesting device, the method comprising:
- generating an access metadata request message indicating information associated with a metadata section desired to be accessed;
transmitting the access metadata request message to a description provider device;
receiving, from the description provider device, an access metadata response message comprising description of the metadata section; and
obtaining metadata based on the description of the metadata section.
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Abstract
Provided is a method and apparatus for accessing service discovery metadata. Advance Internet Protocol Television (AIT) devices may access discovery metadata of different schemes using a generic protocol based on the moving picture experts group (MPEG) Extensible Middleware (MXM). According to the above access scheme, end-user devices, description service provider devices, and IPTV service provider devices may exchange metadata. Subsequent modification and addition of a metadata scheme may be supported.
5 Citations
20 Claims
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1. A discovery metadata accessing method of a requesting device, the method comprising:
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generating an access metadata request message indicating information associated with a metadata section desired to be accessed; transmitting the access metadata request message to a description provider device; receiving, from the description provider device, an access metadata response message comprising description of the metadata section; and obtaining metadata based on the description of the metadata section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19)
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12. A metadata providing method of a description provider device, the method comprising:
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receiving, from a requesting device, an access metadata request message indicating information associated with a metadata section desired to be accessed by the requesting device; generating an access metadata response message comprising the metadata section; and transmitting the access metadata response message to the requesting message. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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20. A requesting device, comprising:
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a control unit to generate an access metadata request message indicating information associated with a metadata section desired to be accessed, and to discover metadata based on description of the metadata section; and an interface unit to transmit the access metadata request message to a description provider device, and to receive, from the description provider device, an access metadata response message comprising the description of the metadata section.
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Specification