Directory for multi-page SVG document

• US 20030126557A1
• Filed: 12/05/2001
• Published: 07/03/2003
• Est. Priority Date: 12/05/2001
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Carcerano, Christopher John, Wood, Loren A., Yardumian, Richard Krikor
• Granted Patent: US 7,055,092 B2
• Time in Patent Office: Days
• US Class Current: 715/513
• CPC Class Codes: G06F 40/114 Pagination
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]

Abstract

An XML-based document which includes text for plural pages also includes directory information which stores location pointers for each of the plural pages. Preferably, the XML-based document is a document that conforms to the scalable vector graphics (SVG) standard. An authoring tool and a viewer are disclosed.

Claims

1. In an XML-based document which includes text delimited by plural element types respectively defining at least vector graphic shapes, images and text, each element type having an opening tag and a corresponding closing tag which collectively conform to a document type definition that defines rules for the plural element types, the improvement comprising:

the XML-based document includes text for plural pages as well as page-information text, wherein the page-information text is delimited by page-information element types that define location in the document of the text for each of the plural pages.

2. An XML-based document according to claim 1, further comprising page-directory text which includes the page-information text, the page-directory text being delimited by page-directory element types which contain at least one page-information element for each of the plural pages.

3. An XML-based document according to claim 2, further comprising directory-information text which includes the page-directory text, the directory-information text being delimited by directory-information element types that specify the number of the plural pages and which contains the page-directory elements.

4. An XML-based document according to claim 3, wherein the directory-information text further includes thumbnail-information text that defines a graphic for each of the plural pages, the thumbnail-information text being delimited by thumbnail-information element types.

5. An XML-based document according to claim 4, further comprising thumbnail-directory text which includes the thumbnail-directory text and which is delimited by thumbnail-directory element types.

6. An XML-based document according to claim 3, further comprising document-attribute text delimited by document-attribute element types and that specify attributes of the document.

7. An XML-based document according to claim 1, further comprising document-resource text that specifies a location pointer in the XML-based document for resources used by pages in the XML-based document.

10. An XML-based document according to claim 1, wherein the page-information text is included in document-directory information stored in the XML-based document.

11. An XML-based document according to claim 10, wherein the document-directory information is stored at or near the end of the XML-based document.

12. An XML-based document according to claim 11, further comprising a directory-exists element delimited by directory-exists element types, the directory-exists elements directly or indirectly defining the location of the document-directory information, the directory-exists element being located at or near the beginning the XML-based document.

13. An XML-based document according to claim 1, wherein the XML-based document is comprised of an SVG-based document.

14. An authoring tool for an XML-based document according to any one of claims 1 to 13.

15. An XML-based document according to claim 14, wherein the authoring tool is comprised of a print driver.

16. An XML-based document according to claim 14, wherein the authoring tool is comprised of a stand-alone application.

17. An XML-based document according to claim 14, wherein the authoring tool is a plug-in to another application program.

18. A viewer for an XML-based document according to any one of claims 1 to 13, wherein the viewer parses the XML-based document based on a current page being viewed and based on the page-information text, so as to render and display the current page.

19. An XML-based document according to claim 18, wherein the viewer is comprised of a stand-alone application.

20. An XML-based document according to claim 18, wherein the viewer is a plug-in to another application program.

8. An XML-based document according to claim 8, further comprising a directory-table-list element that includes the document-resource text and at least an indirect reference to the page-information text.

9. An XML-based document according to claim 8, further comprising document-directory-table text delimited by document-directory-table types and that provides location information of the directory-table-list text.