Hyperlinking time-based data files

• US 5,918,012 A
• Filed: 03/29/1996
• Issued: 06/29/1999
• Est. Priority Date: 03/29/1996
• Status: Expired due to Term

• Current Assignee: British Telecommunications PLC (BT Group PLC)
• Original Assignee: British Telecommunications PLC (BT Group PLC)
• Inventors: Feit, Fil, Astiz, Paul
• Primary Examiner(s): Treat, William M.
• Assistant Examiner(s): Maung, Zarni
• Application Number:
  US08/624,224
• Time in Patent Office: 1,187 Days
• Field of Search: 395/200.48, 395/200.33, 395/200.47, 395/200.34, 395/200.56, 395/200.61, 395/188, 395/146, 395/761, 345/121, 345/335, 707/501
• US Class Current: 709/217
• CPC Class Codes: G06F 16/748 Hypervideo linking data to content, e.g. by linking an URL to a video object in the context of video distribution systems H04N21/858
• CPC Class Codes: G06F 16/94 Hypermedia Hyperlinking G06F40/134

Abstract

A network data processing system is disclosed that uses novel methods and apparatus to hyperlink from full motion videos. The present invention can be used with any standard video file by adding a header identifying a video map location and a script location identifying where the hyperlinks are associated with the video file for any given frame. The present invention includes a new viewer that reads the header and issues the header information, X-coordinate, Y-coordinate, and time coordinate for a particular hyperlink selection made by a user via a computer pointing device. An HTTP Server and video script then operate in conjunction to obtain the corresponding map and identify a network address associated with the coordinate information provided by the viewer.

Claims

1. A video viewer for use by a user on a data processor having a video screen, the data processor communicating on a network via a network server, comprising:

a video player application to play a video data set of a plurality of video frames on the video screen, including,

a header application to read a header associated with the video data set to identify a video map address on the network corresponding to the video data playing on the video screen, the video map address identifying a video map including;

a plurality of frame groups each including;

data identifying a set of video frames from the video data playing on the video screen,

a set of physical coordinates on said video screen corresponding to a portion of the video data in the set of video frames, and

a network address corresponding to the set of physical coordinates; and

a recording application to record, when prompted on the video screen by the user during the playing of the video frames of the video data set and independent of the content of the video frames when the prompt occurs, coordinate data including data identifying where said prompt occurred on the video screen and when said prompt occurred on the video screen; and

a communication application to

     1) communicate the recorded coordinate data and the video map address to the network server, and

     2) receive and display data returned by the network server in response to the recorded coordinate data and the video map address.

2. A video viewer as in claim 1, further including:

a browser application for communicating with the network server and for translating information received from the network server into a pattern on the video screen.

3. A video viewer as in claim 1, wherein the prompts are received from a computer pointing device identifying HTML-formatted hyperlinks.

4. A video viewer as in claim 1 further including:

a script application

     1) for looking up the recorded coordinate data on the map file and

     2) for issuing to the network server, based on the look-up, a network address corresponding to the recorded coordinate data.

5. A video viewer as in claim 1, wherein the video map is located in the data processor.

6. A video data set for use on a network browser running on a data processor having memory and a video screen and communicating on a network, comprising:

video information for loading into the memory for display on the network browser; and

an address header identifying a location on the network of a map file corresponding to the video information, said map file comprising;

a plurality of frame groups each including;

data identifying a set of video frames from the video information,

a set of physical coordinates corresponding to a portion of the video information in tie set of video frames, and

a network address corresponding to the set of physical coordinates to be returned to the network browser via the network after receipt from the network browser of data determined independently of the content of the video information and identifying the occurrence of a user prompt within the corresponding set of physical coordinates of the corresponding set of video frames.

7. A video data set as in claim 6, wherein the address header further includes a location of a script to read the map file and to coordinate a set of physical coordinates and a video frame with said frame groups in said map file.

8. A video data set as in claim 6, wherein at least one frame group includes a plurality of sets of physical coordinates on said video screen corresponding to a plurality of portions of the video information in the set of video frames.

9. A data processing system for a user, having a microprocessor, memory, and a video screen, the system for communicating on a network of devices having associated device addresses and using a network language to hyperlink between said devices, comprising;

a network server, in electrical communication with the network to

     1) deliver device addresses onto the network and

     2) accept data from said network in response to the delivered device addresses;

a file server, in electrical communication with the network server, containing, at a map file address, a map file for a video data set, including;

a plurality of frame groups each including;

data identifying a set of video frames,

a set of physical coordinates identifying locations where said hyperlinks reside for the set of video frames, and

a device address corresponding to the set of physical coordinates;

a browser application, run by the microprocessor, to translate said network language into a pattern on said video screen;

a viewer application, run by the microprocessor, in communication with said browser application to

     1) display the video data set on the video screen,

     2) read the map file address from said video data,

     3) when prompted by said user, record coordinate data including physical coordinates on the video screen where the prompt occurred and a time coordinate when the prompt occurred, and

     4) return the recorded coordinate data and the map file address to the network server;

a script application, called by the browser application, to

     1) receive the map file and recorded coordinate data, and

     2) return a device address from said map file based on the recorded coordinate data to the network server;

whereby the network server delivers to the network the device address received from the script application, and receives from the network and delivers to the browser the data corresponding to the device address received from the script application, and

whereby the browser translates the data corresponding to the device address from said map file into a pattern on said video screen.

10. A system according to claim 9, wherein the viewer application also returns a device address associated with said script application.

11. A system according to claim 10, wherein the script application resides on a different device address than does the viewer application.

12. A system according to claim 9, wherein the viewer application and the browser application are combined into a single application.

13. A system according to claim 9, wherein the script application retrieves the map from the file server.

14. A system according to claim 9, wherein the browser uses another viewer application to display the data corresponding to the device address from said map file into a pattern on the video screen.

15. A system according to claim 9, wherein the map file address read by the viewer application is an alias used by the network server to obtain the map file received by the script application.

16. A network browser for use with a user input device, comprising:

a video viewer for identifying and retrieving a set of video frames from a network and for providing a set of said video frames for display on a video display screen;

a user input controller for receiving user inputs from said user input device identifying coordinate data on said video display screen where prompts were entered by said user input device;

a time monitor for determining time locations in said set of video frames when said prompts were entered by said user input device; and

a communication link for communicating the coordinate data and the time locations for said prompts to a network server together with a video map address at which the network server can find on the network a video map corresponding to the set of video frames, which video map provides script information to identify frames and locations on said frames at which the prompts occurred, said video map remaining unknown to the network browser, said communication link also for communicating from said network server to said browser response addresses derived from said script information.

17. A browser according to claim 16, wherein:

said video map identifies;

1) a plurality of frame number sequences,

2) hot spot locations of frames corresponding to said frame number sequences, and

3) said browser response addresses corresponding to said hot spot locations.

18. A browser according to claim 17, wherein:

the video viewer retrieves the video map address from a header of said set of video frames.

19. A browser according to claim 18, wherein:

the communication link communicates only a single video map address per corresponding set of said video frames for display.

20. A browser according to claim 19, wherein:

the communication link communicates said single video map address every time said communication link communicates coordinate data associated with said video frames for display.