Storing multiple instances of content

• US 9,894,406 B2
• Filed: 09/21/2015
• Issued: 02/13/2018
• Est. Priority Date: 08/23/2011
• Status: Active Grant

• Current Assignee: Dish Technologies LLC (Dish Network Corporation)
• Original Assignee: Echostar Technologies LLC (Echostar Corporation)
• Inventors: Martch, Henry Gregg, Kummer, David A., Kennedy, John T.
• Primary Examiner(s): KIM, TAE K
• Application Number:
  US14/860,366
• Publication Number:
  US 20160105711A1
• Time in Patent Office: 876 Days
• CPC Class Codes: H04N 21/2347 involving video stream encryption
• CPC Class Codes: H04N 21/2365 Multiplexing of several video streams
• CPC Class Codes: H04N 21/42623 involving specific decryption arrangements
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• CPC Class Codes: H04N 21/4408 involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
• CPC Class Codes: H04N 21/458 Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations arrangements for replacing or switching information during the broadcast or during the distribution H04H20/10
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 9/8063 using time division multiplex of the PCM audio and PCM video signals

Abstract

Content receivers may simultaneously record multiple instances of content for multiple programming channels based on content provider instructions. Systems and methods utilize the content receivers to record these multiple instances from at least a single transponder. In some instances, multiple transponders may have a common control word so that content carried on each such transponder may be simultaneously received, decoded and recorded. Further, a single demodulator may be associated with multiple tuners, so that the single demodulator processes all content received from transponders with common control words and/or other encryption mechanisms.

Claims

1. A method for recording multiple instances of television channels, the method comprising:

receiving, by a content receiver, one or more instructions to initiate recording by the content receiver;

in response to the one or more instructions, setting one or more tuners to receive multiple transponder streams, the multiple transponder streams comprising a first transponder stream and a second transponder stream;

receiving, via the one or more tuners, the first transponder stream comprising a first set of content and the second transponder stream comprising a second set of content, the first set of content and the second set of content scrambled using a same control word, wherein;

the first transponder stream comprises a first set of television channels, and

the second transponder stream comprises a second set of television channels;

descrambling the first set of television channels and the second set of television channels using a single descrambler and the same control word; and

recording the first set of television channels and the second set of television channels to a storage medium of the content receiver.

2. The method for recording the multiple instances of television channels of claim 1, the method further comprising:

descrambling, by a descrambler of the content receiver, prior to recording, the first set of television channels and the second set of television channels, wherein the first set of television channels and the second set of television channels are scrambled as received by the one or more tuners.

3. The method for recording the multiple instances of television channels of claim 1, the method further comprising:

descrambling, by a descrambler of the content receiver, a first television channel from the first set of television channels and the second set of television channels after recording but prior to playback, wherein the first set of television channels and the second set of television channels are scrambled as received by the one or more tuners; and

after descrambling the first television channel, outputting, by the content receiver, the first television channel from a superset of television channels comprising the first set of television channels and the second set of television channels for playback.

4. The method for recording the multiple instances of television channels of claim 1, wherein the use of the same common control word to scramble the first set of television channels on the first transponder stream and the second set of television channels on the second transponder stream enables the single descrambler to be used for descrambling of the first set of television channels and the second set of television channels.

5. The method for recording the multiple instances of television channels of claim 1, the method further comprising:

performing, by the content receiver, a check to determine the same control word is used to scramble the first set of television channels on the first transponder stream and the second set of television channels on the second transponder stream.

6. The method for recording the multiple instances of television channels of claim 5, the method further comprising:

receiving, by the content receiver, metadata that indicates the same control word is used to scramble the first set of television channels on the first transponder stream and the second set of television channels on the second transponder stream, wherein performing the check comprises analyzing the metadata.

7. The method for recording the multiple instances of television channels of claim 1, wherein the one or more instructions to initiate recording by the content receiver comprises the one or more instructions being received by the content receiver from a television service provider that transmits the first transponder stream and the second transponder stream.

8. The method for recording the multiple instances of television channels of claim 1, the method further comprising:

obtaining, by the content receiver, the single control word from an entitlement control message received as part of the first transponder stream.

9. The method for recording the multiple instances of television channels of claim 1, wherein the first transponder stream and the second transponder stream, as received, are modulated using different carrier frequencies.

10. A content receiver, comprising:

a first tuner;

a non-transitory processor-readable storage medium; and

one or more processors that are configured to;

receive one or more instructions to initiate recording by the content receiver;

in response to the one or more instructions, set one or more tuners to receive multiple transponder streams, the multiple transponder streams comprising a first transponder stream and a second transponder stream;

receive, via the one or more tuners, the first transponder stream comprising a first set of content and the second transponder stream comprising a second set of content, the first set of content and the second set of content are scrambled using a same control word, wherein;

the first transponder stream comprises a first set of television channels, and

the second transponder stream comprises a second set of television channels;

descramble the first set of television channels and the second set of television channels using a single descrambler and the same control word; and

record the first set of television channels and the second set of television channels to the non-transitory processor-readable storage medium.

11. The content receiver of claim 10, further comprising a descrambler that is configured to, prior to recording, descramble the first set of television channels and the second set of television channels, wherein the first set of television channels and the second set of television channels are scrambled as received by the first tuner.

12. The content receiver of claim 10, further comprising a descrambler that is configured to descramble a first television channel from the first set of television channels and the second set of television channels after recording but prior to playback, wherein the first set of television channels and the second set of television channels are scrambled as received by the first tuner.

13. The content receiver of claim 10, wherein the use of the same common control word to scramble the first set of television channels on the first transponder stream and the second set of television channels on the second transponder stream enables the single descrambler of the content receiver to descramble the first set of television channels and the second set of television channels.

14. The content receiver of claim 10, wherein the one or more processors are further configured to perform a check to determine that the same control word is used to scramble the first set of television channels on the first transponder stream and the second set of television channels on the second transponder stream.

15. The content receiver of claim 14, wherein the one or more processors are further configured to receive and analyze metadata to determine the same control word is used to scramble the first set of television channels on the first transponder stream and the second set of television channels on the second transponder stream.

16. The content receiver of claim 10, wherein the one or more instructions to initiate recording by the content receiver are received via the first tuner from a television service provider that transmits the first transponder stream and the second transponder stream and the one or more processors are configured to analyze the one or more instructions to determine that the first set of television channels and the second set of television channels are to be recorded.

17. The content receiver of claim 10, wherein the first tuner is configured to simultaneously receive the first transponder stream and the second transponder stream, which are modulated using different carrier frequencies.

18. A non-transitory processor-readable storage medium for a content receiver that causes recording the multiple instances of television channels comprising processor-readable instructions configured to cause one or more processors to:

receive one or more instructions to initiate recording by the content receiver;

in response to the one or more instructions, set one or more tuners to simultaneously receive multiple transponder streams, the multiple transponder streams comprising a first transponder stream and a second transponder stream, wherein the first transponder stream and the second transponder stream modulated using different carrier frequencies;

receive, via the one or more tuners, the first transponder stream comprising a first set of content and the second transponder stream comprising a second set of content, the first set of content and the second set of content scrambled using a same control word, wherein;

the first transponder stream comprises a first set of television channels, and

the second transponder stream comprises a second set of television channels;

descramble the first set of television channels and the second set of television channels using a single descrambler and the same control word; and

record the first set of television channels and the second set of television channels to the non-transitory processor-readable storage medium.