Request and Notification for Metadata of Content

• US 20090063649A1
• Filed: 08/29/2008
• Published: 03/05/2009
• Est. Priority Date: 08/31/2007
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: YAMAGISHI, Yasuaki
• Application Number:
  US12/201,587
• Publication Number:
  US 20090063649A1
• Time in Patent Office: Days
• US Class Current: 709/207
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04N 21/4722 for requesting additional data associated with the content
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8133 specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program

Abstract

A server apparatus has a database configured to store metadata of content. A message receiving unit receives a subscribe request for an event notification subscription from a client terminal, the subscribe request including a search condition for the metadata, and establishes a dialog for the event notification subscription. A metadata search unit searches the database on the basis of the search condition. A message sending unit generates a notify message including a search result obtained by the metadata search unit and sends the notify message to the client terminal.

Claims

1. A server apparatus comprising:

a database configured to store metadata of content;

message receiving means for receiving a subscribe request for an event notification subscription from a client terminal, the subscribe request including a search condition for the metadata, and for establishing a dialog for the event notification subscription;

metadata search means for searching the database on the basis of the search condition; and

message sending means for generating a notify message including a search result obtained by the metadata search means and for sending the notify message to the client terminal.

2. The server apparatus of claim 1, wherein the subscribe request and the notify message are based on a protocol for a session control.

3. The server apparatus of claim 2, wherein the protocol is Session Initiation Protocol (SIP).

4. The server apparatus of claim 1, wherein, after the dialog is established, the metadata search means periodically searches the database.

5. The server apparatus of claim 1, wherein the search condition is a query for the database.

6. The server apparatus of claim 1, wherein the search condition is information for referring to or acquiring a query for the database.

7. The server apparatus of claim 1, wherein the search result includes matched metadata that matches the search condition.

8. The server apparatus of claim 1, wherein the search result includes information for referring to or acquiring matched metadata that matches the search condition.

9. The server apparatus of claim 1, wherein the metadata is in TV-Anytime format.

10. A network system comprising:

a client terminal capable of receiving content via a network and playing the content; and

a server apparatus configured to manage metadata of the content,

wherein the client terminal includes;

message sending means for generating a subscribe request for an event notification subscription, the subscribe request including a search condition for the metadata, and for sending the subscribe request to the server apparatus; and

a metadata storage unit configured to receive a notify message as a response to the subscribe request from the server apparatus, and to store a result of searching for the metadata, the result being included in the notify message, and

wherein the server apparatus includes;

a database configured to store the metadata of the content;

message receiving means for receiving the subscribe request from the client terminal and for establishing a dialog for the event notification subscription;

metadata search means for searching the database on the basis of the search condition; and

message sending means for generating the notify message and for sending the notify message to the client terminal.

11. The network system of claim 10, wherein the subscribe request and the notify message are based on a protocol for a session control.

12. The network system of claim 11, wherein the protocol is Session Initiation Protocol (SIP).

13. A content discovery-and-notification method comprising:

generating a subscribe request for an event notification subscription, the subscribe request including a search condition for metadata of content;

sending the subscribe request from a client terminal to a server apparatus;

receiving the subscribe request from the client terminal;

establishing a dialog for the event notification subscription;

searching a database storing the metadata of the content based on the search condition;

generating a notify message including a search result obtained by the searching of the database; and

sending the notify message from the server apparatus to the client terminal.

14. The method of claim 13, wherein the subscribe request and the notify message are based on a protocol for a session control.

15. The method of claim 14, wherein the protocol is Session Initiation Protocol (SIP).

16. A computer-readable storage medium storing a computer program that causes a server apparatus to perform a method, the method comprising:

generating a subscribe request for an event notification subscription, the subscribe request including a search condition for metadata of content;

sending the subscribe request from a client terminal to a server apparatus;

receiving the subscribe request from the client terminal;

establishing a dialog for the event notification subscription;

searching a database storing the metadata of the content based on the search condition;

generating a notify message including a search result obtained by the searching of the database; and

sending the notify message from the server apparatus to the client terminal.

17. The computer-readable storage medium of claim 16, wherein the subscribe request and the notify message are based on a protocol for a session control.

18. The computer-readable storage medium of claim 17, wherein the protocol is Session Initiation Protocol (SIP).

19. A server apparatus comprising:

a database configured to store metadata of content;

a message receiving unit for receiving a subscribe request for an event notification subscription from a client terminal, the subscribe request including a search condition for the metadata, and for establishing a dialog for the event notification subscription;

a metadata search unit for searching the database on the basis of the search condition; and

a message sending unit for generating a notify message including a search result obtained by the metadata search unit and for sending the notify message to the client terminal.

20. A network system comprising:

a client terminal capable of receiving content via a network and playing the content; and

a server apparatus configured to manage metadata of the content,

wherein the client terminal includes;

a message sending unit for generating a subscribe request for an event notification subscription, the subscribe request including a search condition for the metadata, and for sending the subscribe request to the server apparatus; and

a metadata storage unit configured to receive a notify message as a response to the subscribe request from the server apparatus, and to store a result of searching for the metadata, the result being included in the notify message, and

wherein the server apparatus includes;

a database configured to store the metadata of the content;

a message receiving unit for receiving the subscribe request from the client terminal and for establishing a dialog for the event notification subscription;

a metadata search unit for searching the database on the basis of the search condition; and

a message sending unit for generating the notify message and for sending the notify message to the client terminal.