Serving font files in varying formats based on user agent type

• US 8,769,050 B2
• Filed: 10/16/2009
• Issued: 07/01/2014
• Est. Priority Date: 10/16/2009
• Status: Active Grant

• Current Assignee: Celartem Incorporated (Celartem Technology Inc.), Extensis (Celartem Technology Inc.)
• Original Assignee: Celartern Incorporated
• Inventors: Bacus, Mike, Hammond, Bruce Quincy
• Primary Examiner(s): BLAIR, DOUGLAS B
• Application Number:
  US12/580,718
• Publication Number:
  US 20110093565A1
• Time in Patent Office: 1,719 Days
• Field of Search: 709/219, 709/228, 709/246
• US Class Current: 709/219
• CPC Class Codes: G06F 16/9577 Optimising the visualization of content, e.g. distillation of HTML documents
• CPC Class Codes: G06F 40/109 Font handling; Temporal or kinetic typography
• CPC Class Codes: G06F 40/154 Tree transformation for tree-structured or markup documents, e.g. XSLT, XSL-FO or stylesheets
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]

Abstract

To resolve compatibility issues between font file formats and user agents such as web browsers, a font repository may determine a compatible font file format upon receiving a request from the user agent for a font. The determination may be made based on the type of user agent making the request. In one or more arrangements, if a font file in the compatible font file format is not available at the repository, a request may be transmitted to another repository. A font reference in a style sheet or code defining the network document may be unique to the font, but common to all font files corresponding to the font. An application for facilitating the generation of a network document may thus automatically generate such a code in response to a user selecting a desired font.

Claims

1. A method comprising:

receiving, at a font server, a request for a font, wherein the request indicates a type of user agent in which the font is to be displayed;

determining, by the font server, a first font file format compatible with the type of user agent from a plurality of font file formats in which font files for the requested font are provided, wherein the plurality of font file formats includes a second font file format in which the requested font is defined, wherein the type of user agent is incompatible with the second font file format;

retrieving, by the font server, a first font file in the first font file format, wherein the first font file includes data enabling a user agent to individually and separately render, in the requested font, each character in a set of characters; and

transmitting the first font file to a requesting device from the font server.

2. The method of claim 1, wherein the request comprises a uniform resource identifier and wherein the method further comprises extracting the type of user agent from the uniform resource identifier,

wherein the request for the font is received from the user agent independently of a request, by the user agent, for content using the font.

3. The method of claim 2, wherein the content is provided by a server other than the font server and wherein the request for the content is not received by the font server.

4. The method of claim 1, wherein determining whether the first font file format is compatible with the type of user agent includes determining whether the first font file format is understandable by a type of web browser.

5. The method of claim 1, wherein retrieving the first font file includes selecting the first font file from a plurality of font files corresponding to the font, wherein each of the plurality of font files includes data enabling a user agent to individually and separately render each character of the set of characters in the font and wherein each of the plurality of font files is in a different font file format.

6. The method of claim 1, wherein the request includes a font identifier unique to the font, wherein the font identifier is common to a plurality of font files corresponding to the font.

7. The method of claim 1, further comprising:

receiving a second font file in the second font file format prior to receiving the request; and

generating the first font file in the first font file format using the second font file.

8. The method of claim 1, further comprising generating the first font file in response to receiving the request based on a second font file in the second font file format corresponding to the font.

9. The method of claim 1, further comprising determining whether the font is legally distributable based on information included in the request.

10. The method of claim 9, wherein the request corresponds to an HTTP GET request.

11. The method of claim 1, wherein retrieving, by the font server, a first font file in the first font file format includes:

determining whether the first font file in the first font file format is stored in the font server; and

in response to determining that the first font file is not stored in the font server, requesting the first font file from another font server.

12. The method of claim 11, further comprising:

receiving the first font file from the other font server; and

storing the first font file in the font server.

13. The method of claim 1, wherein the first font file is previously stored in the font server prior to receiving the request for the font.

14. An apparatus comprising:

a processor; and

memory operatively coupled to the processor and storing computer readable instructions that, when executed, cause an apparatus to;

receive a request for a font, wherein the request indicates a type of user agent in which the font is to be used;

determine a first font file format compatible with the type of user agent from a plurality of font file formats in which font files for the requested font are provided, wherein the plurality of font file formats includes a second font file format in which the requested font is defined, wherein the type of user agent is incompatible with the second font file format;

retrieve a first font file in the first font file format, wherein the first font file includes data enabling a user agent to individually and separately render, in the requested font, each character in a set of characters; and

transmit the first font file to a requesting device.

15. The apparatus of claim 14, wherein determining whether the first font file format is compatible with the type of user agent includes determining whether the first font file format is understandable by a type of web browser.

16. The apparatus of claim 14, wherein retrieving the first font file includes selecting the first font file from a plurality of font files corresponding to the font, wherein each of the plurality of font files includes data enabling the user agent to render the set of characters in the font and wherein each of the plurality of font files is in a different font file format.

17. The apparatus of claim 14, wherein the computer readable instructions, when executed, further cause the apparatus to:

receive a second font file in the second font file format prior to receiving the request; and

generate the first font file in the first font file format using the second font file.

18. The apparatus of claim 14, wherein the computer readable instructions, when executed, further cause the apparatus to generate the first font file in response to receiving the request based on a second font file in the second font file format corresponding to the font.

19. The apparatus of claim 14, wherein retrieving the first font file in the first font file format includes:

determining whether the first font file in the first font file format is stored in the apparatus; and

in response to determining that the first font file is not stored in the apparatus, requesting the first font file from a remote server.

20. One or more non-transitory computer readable media storing computer readable instructions that, when executed, cause an apparatus storing one or more fonts to:

receive a request for a font, wherein the request indicates a type of user agent in which the font is to be used;

determine a first font file format compatible with the type of user agent from a plurality of font file formats in which font files for the requested font are provided, wherein the plurality of font file formats includes a second font file format in which the requested font is defined, wherein the type of user agent is incompatible with the second font file format;

retrieve a first font file in the first font file format, wherein the first font file includes data enabling a user agent to individually and separately render, in the requested font, each character in a set of characters; and

transmit the first font file to a requesting device.

21. The one or more computer readable media of claim 20, wherein determining whether the first font file format is compatible with the type of user agent includes determining whether the first font file format is understandable by a type of web browser.

22. The one or more computer readable media of claim 20, wherein retrieving the first font file includes selecting the first font file from a plurality of font files corresponding to the font, wherein each of the plurality of font files includes data enabling the user agent to render the set of characters in the font and wherein each of the plurality of font files is in a different font file format.

23. The one or more computer readable media of claim 20, wherein the computer readable instructions, when executed, further cause the apparatus to:

receive a second font file in the second font file format prior to receiving the request; and

generate the first font file in the first font file format using the second font file.

24. The one or more computer readable media of claim 20, wherein the computer readable instructions, when executed, further cause the apparatus to generate the font file in response to receiving the request based on a second font file in the second font file format corresponding to the font.

25. The one or more computer readable media of claim 20, wherein retrieving the first font file in the first font file format includes:

determining whether the first font file in the first font file format is stored in the apparatus; and

in response to determining that the first font file is not stored in the apparatus, requesting the first font file from another apparatus configured to store fonts.