Receiver, distribution method of release information and distribution method of contents

• US 7,979,876 B2
• Filed: 12/03/2008
• Issued: 07/12/2011
• Est. Priority Date: 08/17/2000
• Status: Active Grant

• Current Assignee: Sharp NEC Display Solutions, Ltd.
• Original Assignee: NEC Display Solutions, Ltd. (NEC Corporation)
• Inventors: Yoshioka, Kazuo
• Primary Examiner(s): Lonsberry; Hunter B
• Assistant Examiner(s): SCHNURR, JOHN R
• Application Number:
  US12/327,318
• Publication Number:
  US 20090089853A1
• Time in Patent Office: 951 Days
• Field of Search: 725/25, 725/31, 725/105, 725/110, 725/135
• US Class Current: 725/31
• CPC Class Codes: H04H 60/22 per use
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/4782 Web browsing , e.g. WebTV
• CPC Class Codes: H04N 21/6175 involving transmission via Internet broadcast-related systems characterised by the transmission system being the Internet H04H60/82
• CPC Class Codes: H04N 21/6334 for authorisation, e.g. by transmitting a key wireless communications network key management H04W12/04; wireless communications network access security H04W12/08
• CPC Class Codes: H04N 21/8586 by using a URL processing chained hypermedia data for information retrieval G06F16/94; information retrieval from the Internet by using URLs G06F16/955; URL in broadcast information H04H20/93; Web-based protocols H04L67/02
• CPC Class Codes: H04N 7/088 the inserted signal being digital
• CPC Class Codes: H04N 7/173 with two-way working, e.g. subscriber sending a programme selection signal

Abstract

In the case when password data (PW1) added to a TV broadcasting signal and password data (PW2) transmitted from an Internet connection section (2) have a predetermined correlation with each other, the display section (3) is allowed to display the corresponding contents normally. Therefore, accounting processes are imposed on the transmission of the password data (PW2) so that a normal displaying operation is charged in an indirect manner for each of the contents.

Claims

1. A receiver comprising:

a receiving section for receiving a first communication signal constituting contents through a first communication system;

a transmitting and receiving section requesting a transmission of a second communication signal containing release information and a screen data, and receiving said second communication signal through a second communication system enabling bi-directional communications;

a display signal generation section for converting said screen data received from said second communication system into a display signal;

a matching correlation detection section for making a judgment as to whether or not said release information has a predetermined matching correlation with limitation information for limiting a normal output of said contents; and

an output section refraining from normally outputting at least one portion of said contents when said predetermined matching correlation is not detected, and outputting said contents normally when said predetermined matching correlation is detected, said output section supplied with said display signal to output said screen data.

2. The receiver according to claim 1, wherein said first communication signal contains transmission source information for specifying a transmission source in order to obtain said release information that has said predetermined matching correlation with limitation information corresponding to said contents constituted by said first communication signal, and

wherein said receiver receives said second communication signal automatically by obtaining said transmission source information contained in said first communication signal.

3. The receiver according to claim 1, further comprising:

a storing section for storing said release information and discrimination information for discriminating said contents,

wherein said receiver receives said contents corresponding to said discrimination information stored in said storage section as said first communication signal, and, outputs said contents normally when said release information stored in said storage section and said limitation information corresponding to said contents have said predetermined matching correlation.

4. The receiver according to claim 3, further comprising an accumulation section for accumulating said first communication signal.

5. The receiver according to claim 4, wherein said storage section stores said first communication signal on condition that said contents corresponding to said discrimination information stored in said storage section as said first communication signal.

6. The receiver according to claim 5, wherein said storage section stores said first communication signal on additional condition that said release information stored in said storage section and said limitation information corresponding to said contents have said predetermined matching correlation.

7. The receiver according to claim 1, wherein said first communication signal contains said limitation information corresponding to said contents constituted by said first communication signal.

8. The receiver according to claim 1, wherein said output section indicates that said communication is being carried out through said second communication system upon request and receipt of said second communication signal.

9. The receiver according to claim 1, wherein said contents include video data.

10. The receiver according to claim 1, wherein said contents include music data.

11. The receiver according to claim 1, wherein said contents include program data.

12. A distribution method of release information comprising the steps of:

when release information has a predetermined matching correlation with limitation information for limiting a normal output of contents supplied through a first communication system, distributing said release information for allowing said contents to be normally outputted with a screen data through a second communication system enabling bi-directional communications; and

outputting said contents and said screen data to be displayed.

13. The distribution method according to claim 12, wherein the distribution of said release information is executed in response to a predetermined request.

14. A distribution method of contents, which distributes said contents through a first communication system, comprising the steps of:

supplying said contents together with transmission source information for specifying a transmission source for a second communication system that enables bi-directional communications; and

obtaining release information which allows said contents to be normally outputted and a screen data which indicates information of said transmission source from said transmission source when said release information has a predetermined matching correlation with limitation information for limiting a normal output of said contents.

15. The distribution method of contents according to claim 14, wherein said contents are distributed together with said limitation information corresponding to said contents.