Communications architecture and buffer for distributing information services

• US 5,341,474 A
• Filed: 05/15/1992
• Issued: 08/23/1994
• Est. Priority Date: 05/15/1992
• Status: Expired due to Term

• Current Assignee: TTI Inventions A LLC (Intellectual Ventures LLC)
• Original Assignee: Bell Communications Research, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Weinstein, Stephen B., Smoot, Lanny S., Gelman, Alexander, Kobrinski, Haim
• Primary Examiner(s): Shaw, Dale M.
• Assistant Examiner(s): FALLER, FRAN
• Application Number:
  US07/884,515
• Time in Patent Office: 830 Days
• Field of Search: 395/200, 395/250
• US Class Current: 725/94
• CPC Class Codes: H04L 2012/5615 Network termination, e.g. NT1, NT2, PBX
• CPC Class Codes: H04L 2012/5638 Services, e.g. multimedia, GOS, QOS
• CPC Class Codes: H04L 2012/5684 Characteristics of traffic flows
• CPC Class Codes: H04L 49/3081 ATM peripheral units, e.g. policing, insertion or extraction
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests
• CPC Class Codes: H04N 7/17336 Handling of requests in head-ends
• CPC Class Codes: H04Q 11/0478 Provisions for broadband connections

Abstract

A store-and-forward architecture which stores and distributes information programs to subscribers includes: information warehouses which archive information programs and dispense information programs in segments to central offices in bursts; central offices which manage subscriber'"'"'s requests for service and buffer segments of information programs for delivery to subscribers in real-time under the subscriber'"'"'s interactive control; and customer premises equipment. The central offices employ CO buffers, and each CO buffer includes: processors, for administering internal buffer operations and processing subscribers requests based upon the service presentation script and a program presentation map; interfaces for providing external access; busses for internal transport; buffer storage for storing segments of information programs; and memory storage for storing the script and map.

Claims

1. A store-and-forward architecture for distributing information programs to subscribers, comprising:

a plurality of information warehouses (IWHs) which include means for archiving information programs and means for dispensing segments of said information programs in bursts;

a plurality of central offices (COs) which request and receive said segments of information programs from said IWHs for play-out to subscribers in real-time, wherein each of said COs comprises

1 to N buffers, each of said buffers comprising interface means for external access to said buffer thereto, processor means for managing a subscriber'"'"'s request for an information program based upon a service presentation script and a program presentation map corresponding to said information program and for managing and administering internal operations of said buffer, buffer storage means for storing segments of said information program, memory storage means for storing said script and map associated with said information program, and bus means connected to said interface means, said processor means, said buffer storage means, and said memory storage means for providing internal transport of data and control signals there between; and

a plurality of customer premises equipments (CPEs) wherein each of said CPE is serviced by one of said buffers and is the subscriber'"'"'s interface for generating requests and control signals for interactive play-out and receiving and processing information programs for the subscriber'"'"'s use.

2. The store-and-forward architecture of claim 1 wherein said processor means comprises

a script processor for executing said script corresponding to said information program and

an I/O processor for controlling input and output at said interface means of each said buffer.

3. The store-and-forward architecture of claim 2 wherein said buffer storage means comprises

a first buffer, and

a second buffer, and wherein said first and said second buffers are used in a ping-pong manner.

4. The store-and-forward architecture of claim 2 wherein said memory storage means comprises

script storage for storing said script corresponding to said information program and

map storage for storing said map corresponding to said information program.

5. The store-and-forward architecture of claim 1 wherein said bus means comprises

a control bus for transporting control information and

a data bus for transporting segments of information programs at high speeds, and, wherein said control bus and said data bus are decoupled for consistently fast delivery of information program segments.

6. The store-and-forward architecture of claim 2 wherein said buffer further comprises a buffer operating system.

7. The store-and-forward architecture of claim 1 wherein each of said COs further comprises:

an interface which interfaces said CO to said IWHs;

busses which are internal communications links within said CO; and

a service processor, wherein said service processor queries said IWHs for segments of information programs and said corresponding scripts and maps and administers dissemination of scripts, maps, and segments of information programs received from said IWHs to buffers.

12. The store-and-forward architecture of claim 1 wherein said buffers of said CO are dynamically assigned to the subscriber when a request for service is generated.

13. The store-and-forward architecture of claim 1 wherein each of said buffers is dedicated to one of said CPEs.

8. A store-and-forward architecture for distributing information programs to subscribers, comprising:

a plurality of information warehouses (IWHs) which archive information programs and dispense segments of information programs in bursts;

a plurality of central offices (COs) which request and receive said segments of information programs from said IWHs for play-out to subscribers in real-time, wherein each of said COs comprises

an interface which interfaces said CO to said IWHs;

busses which are internal communications links within said CO, wherein said busses comprise

a control bus for transporting control information between elements of said CO and

a data bus for transporting segments of information programs at high speeds between elements of said CO, wherein said control bus and said CO data bus are decoupled for consistently fast delivery of information program segments between elements of said CO; and

a CO service processor, wherein said CO service processor queries said IWHs for segments of information programs and said corresponding scripts and maps and administers dissemination of scripts, maps, and segments of information programs received from said IWHs to buffers

and wherein COs further comprises 1 to N buffers, each of said buffers comprising interface means for external access to said buffer, processor means for managing a subscriber'"'"'s requests for an information program based upon a service presentation script and a program presentation map corresponding to said information program and for managing and administering internal operations of said buffer, buffer storage means for storing segments of said information program, memory storage means for storing said script and map associated with said information program, and bus means connected to said interface means, said processor means, said buffer storage means, and said memory storage means for providing internal transport of data and control signals there between; and

a plurality of customer premises equipments (CPEs) wherein each said CPE is serviced by one of said buffers and is the subscriber'"'"'s interface for generating requests and control signals for interactive play-out and receiving and processing information programs for the subscriber'"'"'s use.

9. The store-and-forward architecture of claim 8 wherein said interface means of each of said buffers comprises:

a control bus interface which connects said buffers to said control bus for receiving scripts and maps and transporting other control information;

a data bus interface which connects said buffer to said data bus for receiving segments of said information program; and

a subscriber line interface which connects said buffer to one of said plurality of CPEs.

10. The store-and-forward architecture of claim 9 wherein said subscriber line interface is the asymmetrical digital subscriber line interface.

11. The store-and-forward architecture of claim 9 wherein said subscriber line interface is the high speed digital subscriber line interface.

14. An intelligent buffer for receiving segments of an information program and managing subscriber'"'"'s requests for said information program, comprising:

interfaces for external access to said buffer;

processors for processing subscriber requests based upon a service presentation script and a program presentation map corresponding to said information program and for administering the internal operations of said buffer;

busses for providing internal transport of data and control signals between components of said buffer;

buffer storage for storing segments of said information program; and

memory storage for storing said script and map.

15. The intelligent buffer of claim 14 wherein said processors comprise

a script processor for executing said script corresponding to said information program and

an I/O processor for controlling input and output at said interfaces of the buffer.

16. The intelligent buffer of claim 14 wherein said interfaces comprises:

a control bus interface which connects the buffer to an external control bus for receiving scripts and maps and transporting other control information external to the buffer;

a data bus interface which connects the buffer to an external data bus for receiving segments of said information program; and

a subscriber line interface which connects the subscriber to the buffer.

17. The intelligent buffer of claim 14 wherein said buffer storage comprises:

a first buffer storage and

a second buffer storage, and wherein said first and said second buffer storages are used in a ping-pong manner.

18. The intelligent buffer of claim 14 wherein said memory storage comprises

script storage for storing said script corresponding to said information program and

map storage for storing said map corresponding to said information program.

19. The intelligent buffer of claim 14 further comprising a buffer operating system.