| US 7,583,928 B2 | ||
| Information providing method | ||
| Takeshi Iwatsu, Kanagawa (Japan); Noriyuki Sakoh, Kanagawa (Japan); Shinsuke Yamashita, Kanagawa (Japan); Jun Moriya, Tokyo (Japan); and Yasuhiro Murase, Tokyo (Japan) | ||
| Assigned to Sony Corporation, Tokyo (Japan) | ||
| Appl. No. 10/563,315 PCT Filed May 18, 2004, PCT No. PCT/JP2004/007051 § 371(c)(1), (2), (4) Date Jan. 04, 2006, PCT Pub. No. WO2005/006616, PCT Pub. Date Jan. 20, 2005. |
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| Claims priority of application No. 2003-274302 (JP), filed on Jul. 14, 2003; application No. 2003-291741 (JP), filed on Aug. 11, 2003; application No. 2003-313167 (JP), filed on Sep. 04, 2003; and application No. 2003-332562 (JP), filed on Sep. 24, 2003. | ||
| Prior Publication US 2006/0160509 A1, Jul. 20, 2006 | ||
| Int. Cl. H04H 20/71 (2008.01); H04M 1/66 (2006.01); H04B 15/00 (2006.01) | ||
| U.S. Cl. 455—3.01 [455/411; 455/522; 709/219] | 20 Claims |
| 8. An information provision apparatus comprising:
a database configured to store a plurality of associated information concerning an on-air program broadcasted by a broadcasting
station;
a searching unit configured to search the database for associated information concerning the on-air program broadcasted by
the broadcasting station;
an acceptance unit configured to accept an acquisition request for the associated information from a broadcast receiver to
receive a broadcast signal for the program;
an assignment unit configured to assign a service session ID to the broadcast receiver and a valid period for the service
session ID, said service session ID assigned at each acquisition request to identify a current communication connection;
an authentication unit configured to performing an authentication process on the acquisition request based on the session
ID and the valid period and provide an indication that the authentication process was successful or unsuccessful, said authentication
unit indicating that the authentication process was unsuccessful when the valid period is expired;
a transmitter configured to read the associated information stored in the database synchronously with timing to accept the
acquisition request by the acceptance unit as transmitted information and to transmit the associated information to the broadcast
receiver if the authentication unit indicates that the authentication process was successful; and
a resetting unit configured to reset the transmitted information which should be read from the database for transmission when
the on-air program changes to a next program.
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