Information service control point which retrieves information as blocks of data and outputs the retrieved data via a communications link

• US 5,604,682 A
• Filed: 04/19/1996
• Issued: 02/18/1997
• Est. Priority Date: 10/15/1993
• Status: Expired due to Term

• Current Assignee: Pragmatus VOD LLC (Pragmatus, LLC)
• Original Assignee: Image Telecommunications Corporation
• Inventors: McLaughlin, Robert, Bullen, M. James
• Primary Examiner(s): Cosimano, Edward R.
• Assistant Examiner(s): SHAH, KAMINI S
• Application Number:
  US08/634,614
• Time in Patent Office: 305 Days
• Field of Search: 348/7, 348/12, 348/13, 345/4.2, 345/5.1, 370/85.5, 379/89, 379/90, 379/105, 455/5.1, 455/6.3, 455/6.1, 359/118, 364/514
• US Class Current: 709/219
• CPC Class Codes: H04N 7/08 Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band , e.g. by time division H04N7/007 takes precedence
• CPC Class Codes: H04N 7/10 Adaptations for transmission by electrical cable H04N7/12 takes precedence
• CPC Class Codes: H04N 7/17336 Handling of requests in head-ends

Abstract

Various methods and associated apparatuses are provided for communicating data from a central station to a remote station over some form of communications path. The data, which together form at least one title, are stored on at least one storage device. The data forming that title are then retrieved as data blocks from storage. Each data block is a sequential segment of the data. Finally, the retrieved data blocks are transmitted from the central station to the remote station. According to preferred embodiments, two types of storage devices are provided. The first type, preferably formed as an array of playback units, allows the data to be stored as data blocks and distributed accordingly over a plurality of storage devices. The second type, preferably formed as ring structures composed of solid state elements, provides a plurality of access points coupled to the storage medium, each of which is able to retrieve the data independently of other access points. For further versatility in the system, the data blocks can also be transmitted independently of one another from the central station. Preferably, the step of retrieving the data is performed in response to receiving a request for a given title. The various systems disclosed allow a wide assortment of titles (e.g., movies, educational-, entertaiment-, consumer-, and business-related information, and any information that can be converted into a stream of data) to be transmitted to a wide audience with great flexibility and minimal contention between users for the titles offered.

Claims

1. A system for communicating data, the data together forming at least one title in an interactive services information database, from a central station configured to administrate the information database to a plurality of remote stations, said system comprising:

storage means in the information database for storing the data;

retrieving means operatively connected to said storage means for retrieving the data as data blocks, wherein each data block is a sequential segment of the data;

a communications link operatively connected to said storage means and said retrieving means for receiving the retrieved data blocks and transmitting the retrieved data blocks from the central station; and

a plurality of communications paths connecting respective remote stations with said communications link,

wherein said communications link comprises;

an array of trunk processors, each associated with at least one of said communications paths; and

a switch matrix operatively connected to said storage means, said retrieving means, and said array of trunk processors, wherein said switch matrix establishes switch paths between said storage means and said array of trunk processors in accordance with commands from said retrieving means.

2. The system according to claim 1, wherein said storage means stores the data in a sequence corresponding to a playback sequence of the data.

3. A system for communicating data, the data together forming at least one title in an interactive services information database, from a central station configured to administrate the information database to a plurality of communication paths, said system comprising:

a data storage area in the information database comprising at least one storage device designed to store the data;

a master service unit having at least one operations algorithm;

a communications link, located at the central station, having a plurality of outgoing lines connected to the communications paths; and

at least one communications bus connected to each of said data storage area, said master service unit and said communications link for enabling communication therebetween;

wherein said operations algorithm is configured to;

locate the data in said data storage area;

retrieve the data in the form of data blocks, each data block being a sequential segment of the data, from said data storage area;

locate an available one of said outgoing lines in said communications link; and

provide the data blocks to the available outgoing line.

4. The system according to claim 3, wherein said communications link comprises:

a switch matrix having multiple inputs from said data storage area and multiple outputs; and

a subscriber service unit, having a plurality of inputs and a plurality of outputs, wherein

each of the inputs of said subscriber service unit mate with at least one of the outputs of said data storage area, and

each of the outputs of said subscriber service unit mate with at least one of the communication paths.

5. The system according to claim 3, wherein said operations algorithm is further configured to:

receive a title request from a remote station; and

respond to the title request by retrieving the data as the data blocks.

6. The system according to claim 3, wherein the interactive services information comprises audio-visual information.

7. The system according to claim 3, wherein the interactive services information comprises audio information.

8. The system according to claim 3, wherein the interactive services information comprises video information.

9. The system according to claim 3, wherein said storage device stores the data in a sequence corresponding to a playback sequence of the data.

10. The system according to claim 6, wherein the audio-visual information comprises movies.

11. The system according to claim 6, wherein the audio-visual information comprises television programming.

12. The system according to claim 6, wherein the audio-visual information comprises videogame programming.

13. The system according to claim 7, wherein the audio information comprises music.

14. The system according to claim 8, wherein the video information comprises online text information.