System and method for auditorially representing pages of HTML data

• US 6,085,161 A
• Filed: 03/23/1999
• Issued: 07/04/2000
• Est. Priority Date: 10/21/1998
• Status: Expired due to Fees

• Current Assignee: Sonicon Incorporated
• Original Assignee: Sonicon Incorporated
• Inventors: Clemens, Marshall W., Arons, Barry M., Owen, David E., MacKenty, Edmund R.
• Primary Examiner(s): Knepper, David D.
• Application Number:
  US09/274,516
• Time in Patent Office: 469 Days
• Field of Search: 704/270, 704/275, 704/258, 704/260
• US Class Current: 704/270
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 40/221 Parsing markup language streams streaming G06F40/149
• CPC Class Codes: G10L 13/00 Speech synthesis; Text to speech systems

Abstract

Representing HTML documents audibly includes the steps of assigning (214) unique sounds to HTML tags and events encountered in an HTML document, producing the associated sounds whenever those tags or events are encountered (218), and representing encountered text as speech (220). Speech and non-speech sounds may be produced simultaneously or substantially simultaneously. A corresponding system (10) is also disclosed.

Claims

1. A method of representing HTML documents auditorially, the HTML document including text and at least one HTML tag, the method comprising the steps of:

(a) assigning a sound to an HTNL tag encountered in a document (214);

(b) producing the assigned sound whenever the HTML tag associated with the sound is encountered (218); and

(c) producing speech representing text encountered in the HTML document (220).

2. The method of claim 1 wherein steps (b) and (c) occur substantially simultaneously.

3. The method of claim 1 wherein step (c) further comprises (c-a) producing speech representing text encountered in the HTML document;

and

(c-b) including pauses in the speech representing punctuation encountered in the HTML document.

4. The method of claim 1 further comprising the steps of (d) accepting input indicating selection of a particular HTML tag;

(e) auditorially displaying a new HTML document identified by the selected tag.

5. The method of claim 1 further comprising the steps of:

(f) altering a sound whenever a sound altering HTML tag is encountered; and

(g) halting a sound whenever a sound halting HTML tag is encountered.

6. The method of claim 1 further comprising the step of replacing a textual construct with a text passage before step (c).

7. The method of claim 6 wherein said replacing step comprises replacing an electronic mail address with a text passage before step (c).

8. A system for representing HTML documents auditorially, the system comprising:

a parser (12) receiving a HTNL document and outputting a tree representing the received document; and

a reader (14) using the tree to produce sound representing the text and tags contained in the HTML document.

9. The system of claim 8 wherein said parser produces a tree having at least one node, said at least one node representing a HTML tag.

10. The system of claim 9 wherein tag attributes and tag attribute values are attached to each node.

11. The system of claim 8 wherein textual data contained in the HTML document is represented as leaf nodes of the tree.

12. The system of claim 8 wherein said reader performs a depth-first traversal of the tree to produce sound representing the texts and tags contained in the HTML document.

13. The system of claim 8 further comprising a read cursor indicating the position within the parsed HTML tree that said reader is currently outputting.

14. The system of claim 13 wherein the position of the read cursor can be changed, causing a different position of the parsed HTML document to be output.

15. The system of claim 8 further comprising an enqueue cursor indicating the position within the parsed HTML tree that will be processed for output by said reader.

16. An article of manufacture having computer-readable program means for representing HTML documents auditorially embodied thereon, the HTML document including text and at least one HTML tag, the article of manufacture comprising:

(a) computer-readable program means (214) for assigning a unique sound to an HTML tag encountered in a document;

(b) computer-readable program means (218) for producing the assigned sound whenever the HTML tag associated with the sound is encountered; and

(c) computer-readable program means (220) for producing speech representing text encountered in the HTML document.

17. The article of claim 16 further comprising:

(d) computer-readable program means for accepting input indicating selection of a particular HTML tag; and

(e) computer-readable program means for auditorially displaying a new HTML document identified by the selected tag.