System and method for conditional access in an in-home network based on multi-network communication

Patent metadata

Field	Value
Publication number	US-2016198221-A1
Application number	US-201514840157-A
Country	US
Kind code	A1
Filing date	Aug 31, 2015
Priority date	May 19, 2011
Publication date	Jul 7, 2016
Grant date	—

Abstract

One or more circuits for use in a transceiver that is collocated with a satellite dish, may receive a satellite signal carrying media content, and remove content protection from the received media content. After removing the first content protection, the one or more circuits may apply second content protection to the media content. The content protection applied by the one or more circuits may adhere to a different protocol, utilize different keys, and/or otherwise be distinguishable from the content protection that was removed. After applying the content protection, the one or more circuits may transmit the media content onto one or more links between the satellite dish and one or more client devices. The removal of the content protection may comprise descrambling and/or decrypting the media content. The application of the content protection may comprise scrambling and/or encrypting the media content.

First claim

What is claimed is:

1 . A system comprising:
one or more circuits for use in a transceiver that is collocated with a satellite dish, said one or more circuits being operable to:
receive a satellite signal carrying media content;
remove first content protection from said media content;
after said removal of said first content protection, apply second content protection to said media content;
after said application of said second content protection, transmit said media content onto one or more links between said satellite dish and one or more client devices.

2 . The system of claim 1 , wherein said removal of said content protection comprises descrambling and/or decrypting said media content.

3 . The system of claim 1 , wherein said application of said second content protection comprises scrambling and/or encrypting said media content.

4 . The system of claim 3 , wherein said scrambling and/or encrypting utilizes a key that corresponds to a hardware unique identifier of said one or more circuits.

5 . The system of claim 3 , wherein said scrambling and/or encrypting utilizes a plurality of keys, each of said keys being associated with a different subscription level.

6 . The system of claim 3 , wherein said scrambling and/or encrypting of said media content is performed in adherence to the DTCP-IP standard.

7 . The system of claim 1 , wherein said one or more circuits are operable to, prior to said transmitting said media content, packetize said scrambled and/or encrypted media content into one or more Internet Protocol (IP) packets.

8 . The system of claim 1 , wherein said one or more circuits are integrated on a common substrate with a low noise block-downconverter of said satellite dish.

9 . A method comprising:
performing by one or more circuits of a transceiver that is collocated with a satellite dish:
receiving a satellite signal carrying media content;
removing first content protection from said media content;
after said removal of said first content protection, applying second content protection to said media content;
after said application of said second content protection, transmitting said media content onto one or more links between said satellite dish and one or more clients.

10 . The method of claim 9 , wherein said removing said first content protection comprises descrambling and/or decrypting said media content.

11 . The method of claim 9 , wherein said applying said second content protection comprises scrambling and/or encrypting said media content.

12 . The method of claim 11 , wherein said scrambling and/or encrypting utilizes a key that corresponds to a hardware unique identifier of said one or more circuits.

13 . The method of claim 11 , wherein said scrambling and/or encrypting of said media content is performed in adherence to the DTCP-IP standard.

14 . The method of claim 9 , comprising, prior to said transmitting said media content, packetizing said scrambled and/or encrypted media content into one or more Internet Protocol (IP) packets.

15 . The method of claim 9 , wherein said one or more circuits are integrated on a common substrate with a low noise block-downconverter of said satellite dish.

16 . A system comprising:
one or more circuits for use in a transceiver that is collocated with a satellite dish, said one or more circuits being operable to:
receive a packet stream via satellite;
remove content protection from said received packet stream, said content protection having been applied by a provider of said satellite signal;
scramble and/or encrypt said packet stream; and
transmit said scrambled and/or encrypted packet stream onto a network link.

17 . The system of claim 16 , wherein said removal of said content protection comprises descrambling and/or decrypting said media content.

18 . The system of claim 16 , wherein said one or more circuits are operable to encapsulate said encrypted and/or scrambled packet stream into one or more Internet Protocol (IP) packets prior to said transmission onto said network link.

19 . The system of claim 16 , wherein said first one or more circuits are integrated on a common substrate with a low noise block-downconverter.

20 . The system of claim 16 , wherein said scrambling and/or encrypting utilizes a key that corresponds to a hardware unique identifier of said one or more circuits.

Assignees

• Maxlinear Inc

Inventors

• Sprague Brian
• Chang Glenn
• Gallagher Timothy
• Ramesh Sridhar

Classifications

• H04N21/6193

  involving transmission via a satellite (arrangements for data linking, networking or transporting, or for controlling an end to end session in a satellite broadcast system H04B7/18526) · CPC title

• H04N21/440209

  for formatting on an optical medium, e.g. DVD · CPC title

• H04N21/6402

  Address allocation for clients {(address allocation in data networks H04L61/50)} · CPC title

• H04N21/4383

  Accessing a communication channel · CPC title

• H04N21/61

  Network physical structure; Signal processing (H04B takes precedence) · CPC title