System for interactively distributing information services

• US 6,166,730 A
• Filed: 05/28/1999
• Issued: 12/26/2000
• Est. Priority Date: 12/03/1997
• Status: Expired due to Term

• Current Assignee: Cox Communications Incorporated (Cox Enterprises Incorporated)
• Original Assignee: DIVA Systems Corporation
• Inventors: Goode, Chrostopher W. B., LaRocca, Tobie J.
• Primary Examiner(s): GRANT, CHRISTOPHER C
• Application Number:
  US09/322,814
• Time in Patent Office: 578 Days
• Field of Search: 345/327, 709/217, 709/218, 709/219, 709/227, 709/228, 709/229, 348/7, 348/12, 348/13, 348/1, 348/6, 455/5.1, 455/4.2, 705/10, 705/14, 705/50
• US Class Current: 715/716
• CPC Class Codes: H04N 21/2387 Stream processing in response to a playback request from an end-user, e.g. for trick-play
• CPC Class Codes: H04N 21/25816 involving client authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/25866 Management of end-user data customer care in data networks H04L41/5077
• CPC Class Codes: H04N 21/266 Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/4751 for defining user accounts, e.g. accounts for children
• CPC Class Codes: H04N 21/4753 for user identification, e.g. by entering a PIN or password cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08
• CPC Class Codes: H04N 21/6543 for forcing some client operations, e.g. recording remote booting in general G06F9/4416
• CPC Class Codes: H04N 21/6581 Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
• CPC Class Codes: H04N 7/17336 Handling of requests in head-ends

Abstract

In an interactive information distribution system that utilizes open sessions to provide requested information to users, a method for sharing the use of open sessions between a plurality of set top terminals associated with a common account number or user.

Claims

1. In an interactive information distribution system that utilizes an open session to provide requested information, a method comprising the steps of:

(a) determining, in response to a title selection received from a first set top terminal, whether an open session for said selected title exists, said first set top terminal being associated with an account identifier; and

(b) determining, in the case of said open session for said selected title existing, whether a second set top terminal associated with said account identifier is utilizing said open session;

(c) in the case of said second set top terminal utilizing said existing open session, opening a new session to provide said selected title to said first set top terminal;

(d) in the case of said second set top terminal not utilizing said existing open session, utilizing said existing open session to provide said selected title to said first set top terminal.

2. The method of claim 1, wherein said step (d) of utilizing said existing open session to provide said selected title to said first set top terminal comprises the step of distributing, to said first set top terminal, a remaining portion of said selected title, said remaining portion comprising substantially all of said selected title not previously utilized during said open session.

3. The method of claim 1, wherein said step (c) of opening a new session to provide said selected title to said first set top terminal comprises the steps of:

interacting with said first set top terminal to effect a purchase of said selected title; and

opening a session to deliver said selected title to said first set top terminal.

4. The method of claim 1, further comprising the step of:

providing, to said first set top terminal, a list of open session program titles.

5. The method of claim 4, wherein said list of open session program titles excludes open session program titles currently in use by another set top terminal being associated with said account identifier.

6. The method of claim 5, wherein said step (b) of determining comprises the step of determining if said list of open session program titles included said requested title.

7. The method of claim 5, wherein each set top terminal presents said list of open session program titles as a graphical overly on a respective presentation device.

8. The method of claim 1, wherein:

each open session for said account identifier has associated with it an indicator of a present streaming position of said selected title;

a portion of said selected title not previously presented by any of said set top terminals being determined using said position indicator.

9. The method of claim 1, wherein:

each open session with said account identifier has associated with it at least one of an indicator of allowable information stream use time and an indicator of allowable selected title view time.

10. The method of claim 9, further comprising the step of:

terminating said open session in response to said set top terminal stopping the presentation of said selected title and an expiration of one of said allowable selected title use time and said allowable selected title view time.

11. In an interactive information distribution system including service provider equipment and subscriber equipment interconnected by a communications network, a method of sharing the use of open sessions between a plurality of set top terminals associated with a common account, said method comprising the steps of:

receiving, from one of said set top terminals, a request for an information stream; and

in response to a determination that an existing open session with said common account includes said requested information stream, and that said information stream is not being presented by any of said plurality of set top terminals, providing to said requesting set top terminal the portion of said information stream following a previously presented portion of said information stream.

12. The method of claim 11, wherein:

in response to a determination that an existing open session with said common account includes said requested information stream, and that said information stream is being presented by any of said plurality of set top terminals, performing the steps of;

interacting with said requesting set top terminal to effect a purchase of said requested information stream; and

providing to said requesting set top terminal said information stream.

13. The method of claim 12, wherein:

in response to a determination that an open session with said common account does not exist, performing the steps of;

interacting with said requesting set top terminal to effect a purchase of said requested information stream; and

providing to said requesting set top terminal said information stream.

14. The method of claim 11, wherein:

each open session with said common account has associated with it an indicator of a present streaming position of said information stream;

said previously presented portion of said information stream preceding said streaming position indicator.

15. The method of claim 11, wherein:

each open session with said common account has associated with it at least one of an indicator of allowable information stream use time and an indicator of allowable information stream view time.

16. The method of claim 15, further comprising the step of:

terminating said open session in response to said set top terminal stopping the presentation of said information stream and an expiration of one of said allowable information stream use time and said allowable information stream view time.