Multi-stream premises apparatus and methods for use in a content delivery network

• US 9,743,142 B2
• Filed: 02/19/2008
• Issued: 08/22/2017
• Est. Priority Date: 02/19/2008
• Status: Active Grant

• Current Assignee: Time Warner Cable Enterprises LLC (Charter Communications Incorporated)
• Original Assignee: Time Warner Cable Enterprises LLC (Charter Communications Incorporated)
• Inventors: Cholas, Chris, Helms, William L., Sarosi, George W.
• Primary Examiner(s): Chokshi, Pinkal R
• Assistant Examiner(s): LUONG, ALAN H
• Application Number:
  US12/070,560
• Publication Number:
  US 20090210912A1
• Time in Patent Office: 3,472 Days
• Field of Search: 725105, 725109-110, 725 82, 375 E7019
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/4583 Automatically resolving scheduling conflicts, e.g. when a recording by reservation has been programmed for two programs in the same time slot
• CPC Class Codes: H04N 21/462 Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
• CPC Class Codes: H04N 21/47214 for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market stock exchange data over packet-switching network H04L12/1804; push services over packet-switching network H04L12/1859; notification of incoming messages in packet switching networks H04L51/224
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control

Abstract

Apparatus and methods for enhanced tuner efficiency, wherein tuner resources function to permit multiple content streams to be demultiplexed and thus made available for subsequent display. In one embodiment, Customer Premises Equipment (CPE) comprises a resource manager on which a guide application is run to control the tuning of an available tuner resource. This approach obviate reliance on OCAP or other proprietary vendor architecture applications. In another variant, the CPE is adapted to receive RF source data from a wideband tuner, or multiple tuners. The CPE may also be utilized in conjunction with other system configurations designed to enforce a security or other policies within a premises network. The CPE may also employ ‘look ahead’ capabilities to anticipate a QAM stream content before it is received.

Claims

1. A premises network resource management apparatus configured to manage a plurality of tuner resources within a plurality of premises devices, said resource management apparatus comprising:

processing apparatus; and

storage apparatus in data communication with said processing apparatus and comprising at least one computer program, said at least one program comprising a plurality of instructions which are configured to, when executed by said processing apparatus;

receive a request for content from a first one of said plurality of premises devices;

obtain information regarding said plurality of tuner resources of said plurality of premises devices;

determine that no tuner resources of said first one of said plurality of premises devices are available to access said requested content based on said information regarding said plurality of tuner resources of said plurality of premises devices;

in response to said determination that no tuner resources of said first one of said plurality of premises devices are available to access said requested content, identify, from among said plurality of tuner resources of said plurality of premises devices based on said information regarding said plurality of tuner resources, a tuner resource of a second one of said plurality of premises devices available to access said requested content;

maintain a content routing table, said content routing table comprising information at least relating to a plurality of programs and respective routing thereof;

update said content routing table to reflect routing of said requested content to said available tuner resource of said second one of said plurality of premises devices;

cause said available tuner resource of said second one of said plurality of premises devices to tune to said requested content; and

provide said requested content to said first one of said plurality of premises devices.

2. The resource management apparatus of claim 1, wherein said information comprises status information comprising at least one of:

(i) a current frequency to which at least one of said plurality of tuner resources is currently tuned;

(ii) programs that are available on said current frequency;

or

(iii) program identifications associated with said programs available on said current frequency.

3. The resource management apparatus of claim 1, wherein said causation of said available tuner resource of said second one of said plurality of premises devices to tune to said requested content, and said provision of said requested content to said first one of said plurality of premises devices comprise:

reservation of said available tuner resource of said second one of said plurality of premises devices; and

causation of said available tuner resource of said second one of said plurality of premises devices to distribute a first program stream comprising said requested content to said first one of said plurality of premises devices in accordance with said content routing table.

4. The resource management apparatus of claim 3, wherein said plurality of instructions are further configured to, when executed, direct said available tuner resource of said second one of said plurality of premises devices to distribute a second program stream different from said first program stream to a third one of said plurality of premises devices concurrently with said distribution of said first stream in accordance with said content routing table.

5. The resource management apparatus of claim 1, wherein said at least one computer program comprises an object-oriented computer program.

6. The resource management apparatus of claim 5, further comprising

an interface configured to communicate data or signals between said plurality of tuner resources and said processing apparatus.

7. The resource management apparatus of claim 6, wherein said plurality of tuner resources comprise a plurality of radio frequency (RF) tuners each configured to tune to and receive at least one quadrature amplitude modulated (QAM) signal.

8. The resource management apparatus of claim 7, further comprising at least one demodulator, said at least one demodulator configured to demodulate said at least one QAM signal;

wherein said at least one demodulator is in communication with said processing apparatus and is at least partly controllable thereby.

9. The resource management apparatus of claim 8, wherein said resource management apparatus is further configured to manage said plurality of tuner resources in accordance with a network operator-specified policy that is communicated to said resource management apparatus over a network.

10. The resource management apparatus of claim 1, wherein said resource management apparatus is configured to manage said tuner resources in accordance with a user-specified policy.

11. The resource management apparatus of claim 1, wherein said plurality of tuner resources comprise at least one out-of-band (OOB) tuner, and said resource management apparatus is configured to control said at least one OOB tuner for said transmission of said OOB communication signals to said headend device.

12. The resource management apparatus of claim 11, wherein said at least one OOB tuner is disposed on a second platform physically separate from a first platform of said resource management apparatus.

13. The resource management apparatus of claim 12, wherein said second platform comprises a digital video recorder, and said first platform comprises a set top box or receiver.

14. The resource management apparatus of claim 1, wherein said plurality of instructions are further configured to, when executed, analyze said content routing table to implement one or more rules.

15. The resource management apparatus of claim 14, wherein said one or more rules are utilized to identify particular content which can be selectively routed to only certain ones of said plurality of premises devices, and wherein said identification is based at least in part on a rating associated with said particular content.

16. The resource management apparatus of claim 14, wherein said one or more rules are utilized to identify, based on at least one prescribed condition associated with said first one of said plurality of premises devices, whether to decrypt said requested content, and wherein said at least one prescribed condition comprises a public/private key exchange.

17. An apparatus configured to manage a plurality of tuner resources of a plurality of client devices in a premises network, said apparatus comprising:

a first interface configured to receive, over said premises network, information regarding said plurality of tuner resources of said plurality of client devices, each of said tuner resources being associated with an individual one of said plurality of client devices;

a first tuner resource configured to receive at least one multiplexed transport stream from a content delivery network;

a demultiplexer configured to demultiplex a plurality of program streams from said at least one multiplexed transport stream; and

a processor apparatus configured to;

control distribution of said plurality of program streams to respective ones of said plurality of client devices in communication with said apparatus according to a security policy configured to identify, based on a security level associated with each of said ones of said plurality of client devices, whether to distribute said plurality of program streams to said respective ones of said client devices as decrypted program streams or encrypted program streams;

according to said identification, distribute encrypted program streams to first ones of said respective ones of said client devices, and distribute decrypted program streams to second ones of said respective ones of said client devices;

determine that said first tuner resource is unavailable to receive an additional multiplexed transport stream from said content delivery network;

in response to said determination that said first tuner resource is unavailable to receive said additional multiplexed transport stream, identifying a second tuner resource of a first one of said plurality of client devices available to receive said additional multiplexed transport stream based on said information regarding said plurality of tuner resources; and

control distribution of a plurality of program streams demultiplexed by said first one of said plurality of client devices from said additional multiplexed transport stream according to said security policy.

18. The apparatus of claim 17, wherein said first tuner resource comprises at least one radio frequency (RF) tuner.

19. The apparatus of claim 17, wherein said first tuner resource comprises at least one wideband tuner, said at least one wideband tuner configured to tune and receive a plurality of radio frequency (RF) channels simultaneously.

20. The apparatus of claim 17, wherein said demultiplexer further comprises an internal filter, said internal filter configured to facilitate selective identification and recovery of said plurality of program streams from said at least one multiplexed transport stream.

21. The apparatus of claim 20, wherein said internal filter comprises a program identification (PID) filter, and said selective identification and recovery are based at least in part on PIDs associated with each of said plurality of program streams.

22. The apparatus of claim 20, wherein:

said information comprises status information regarding said plurality of tuner resources; and

said processor apparatus is further configured to decrypt at least a portion of said plurality of streams.

23. A method of managing a plurality of tuner resources within a plurality of premises devices via a network resource manager, said method comprising:

receiving a request for content from a first one of said plurality of premises devices;

obtaining information regarding said plurality of tuner resources;

determining that no tuner resources of said first one of said plurality of premises devices are available to access said requested content based on said information regarding said plurality of tuner resources;

in response to determining that no tuner resources of said first one of said plurality of premises devices are available to access said requested content, reserving a tuner resource of another one of said plurality of premises devices for receiving said requested content;

determining a security level of said first one of said plurality of premises devices, said security level indicating whether said first one of plurality of premises devices is to receive said requested content as decrypted content or as encrypted content, said security level comprising a trusted domain formed between said network resource manager and said first one of said plurality of premises devices; and

distributing said requested content received at said tuner resource of said another one of said plurality of premises devices to said first one of said plurality of premises devices, said distribution thereof comprising a decrypted or an encrypted content stream based on said security level.

24. The method of claim 23, further comprising:

receiving a plurality of upstream out-of-band (OOB) communication signals from individual ones of said plurality of premises devices for transmission to a headend device;

receiving from said headend device a plurality of downstream OOB communication signals; and

transmitting said plurality of downstream OOB communication signals to respective ones of said individual ones of said plurality of premises devices based at least in part on an identifier contained therein.

25. The method of claim 23, wherein receiving information comprises receiving at least one of:

(i) a frequency to which at least one of said plurality of tuner resources is currently tuned;

(ii) programs that are available on said current frequency;

or

(iii) program identifications associated with said programs available on said current frequency.

26. The method of claim 23, further comprising:

directing said reserved tuner resource of said another one of said plurality of premises devices to distribute a first program stream to said first one of said plurality of premises devices in accordance with a content routing table, said content routing table comprising information at least relating to a plurality of programs and respective routing thereof.

27. The method of claim 26, further comprising:

directing said reserved tuner resource of said another one of said plurality of premises devices to distribute a second program stream to said first one of said plurality of premises devices concurrently with distributing said first program stream.

28. The method of claim 23, wherein said plurality of tuner resources comprise a plurality of radio frequency (RF) tuners each configured to tune to and receive at least one quadrature amplitude modulated (QAM) signal.

29. The method of claim 28, further comprising demodulating said at least one QAM signal.

30. The method of claim 23, further comprising managing said plurality of tuner resources in accordance with a network operator-specified policy communicated to said network resource manager over a network.

31. The method of claim 23, further comprising managing said plurality of tuner resources in accordance with a user-specified policy.

32. A premises network resource management apparatus configured to manage a plurality of tuner resources within a plurality of premises devices, comprising:

processing apparatus; and

storage apparatus in data communication with said processing apparatus and comprising at least one computer program, said at least one program comprising a plurality of instruction which are configured to, when executed;

maintain a local content routing table, said content routing table comprising information at least relating to a plurality of programs and respective routing thereof;

receive a request for content from a first one of said plurality of premises devices;

obtain information regarding said plurality of tuner resources;

determine that no tuner resources of said first one of said plurality of premises devices are available to access said requested content based on said obtained information;

based at least on said determination and using at least a portion of said obtained information, identify a tuner resource of a second one of said plurality of premises devices available to access said requested content;

update said local content routing table to reflect routing of said requested content to said available tuner resource of said second one of said plurality of premises devices;

cause said available tuner resource of said second one of said plurality of premises devices to tune to said requested content; and

provide said requested content to said first one of said plurality of premises devices.

33. The premises network resource management apparatus of claim 32, wherein said plurality of instructions are further configured to, when executed, interface with one or more application programs associated with one or more of said plurality of premises devices, said one or more application programs having no tuner discovery or control functionality.