Methods and apparatus for retrieving font data

• US 7,937,658 B1
• Filed: 04/21/2006
• Issued: 05/03/2011
• Est. Priority Date: 04/21/2006
• Status: Active Grant

• Current Assignee: Adobe Inc.
• Original Assignee: Adobe Systems Incorporated (Adobe Inc.)
• Inventors: Lunde, Ken R.
• Primary Examiner(s): RIES, LAURIE ANNE
• Application Number:
  US11/408,603
• Time in Patent Office: 1,838 Days
• Field of Search: 715/269, 715/256, 715/262, 715/255, 715/273
• US Class Current: 715/269
• CPC Class Codes: G06F 40/109 Font handling; Temporal or kinetic typography

Abstract

A message processor receives message data from a remote source for rendition to a user of a computerized device. The message processor renders the message data to the user and, during rendering of the message data, identifies that a font in which the message data is to be rendered is missing font portions required to fully render the message data in that font. In response, the message processor dynamically obtains the missing font portions for that font to allow the computerized device to fully render the message data in that font.

Claims

1. A computer-implemented method comprising:

storing, at a computerized device, a limited set of font portions, wherein the limited set of font portions is less than an entire set of font portions required to render all symbols of a font;

receiving a message at the computerized device from a remote source, wherein the message comprises message data codes that represent values that can be converted into graphical images in order to render the message, wherein the message data codes correspond to font portions of the entire set of fonts;

identifying, via the computerized device, a non-matching message data code of the message data codes by comparing the message data codes with the limited set of font portions, wherein the limited set of font portions does not have a font portion corresponding to the non-matching message date code;

sending a request from the computerized device to a resource over a network, the request requesting an additional font portion corresponding to the non-matching message data code; and

initiating, via the computerized device, display of a visual representation of the message.

2. The method of claim 1 wherein display of the visual representation is based at least in part on the limited set of font portions and the additional font portion.

3. The method of claim 1 wherein display of the visual representation comprises a graphical indication that rendering of the message is incomplete.

4. The method of claim 3 wherein the graphical indication comprises a place-filler symbol to represent the non-matching message data code.

5. The method of claim 1 further comprising updating the limited set of font portions by adding the additional font portion.

6. The method of claim 5 further comprising removing the additional font portion from the limited set of font portions if the additional font portion is not used within a predetermined time.

7. The method of claim 5 further comprising removing the additional font portion from the limited set of font portions to allow for obtaining additional font data portions.

8. The method of claim 1 wherein the request comprises the non-matching message data code.

9. The method of claim 1 wherein the message is displayed in substantially real-time with receiving the message from the remote source.

10. The method as in claim 1 wherein the entire set of font portions comprises glyphs that can be combined to render information in Chinese, Japanese, or Korean, wherein the limited set of font portions comprises glyphs that are more commonly used than glyphs that are not included in the limited set of font portions.

11. A non-transitory computer-readable medium comprising:

program code for storing, at a computerized device, a limited set of font portions, wherein the limited set of font portions is less than an entire set of font portions required to render all symbols of a font;

program code for receiving a message at the computerized device from a remote source, wherein the message comprises message data codes that represent values that can be converted into graphical images in order to render the message, wherein the message data codes correspond to font portions of the entire set of fonts;

program code for identifying, via the computerized device, a non-matching message data code of the message data codes by comparing the message data codes with the limited set of font portions, wherein the limited set of font portions does not have a font portion corresponding to the non-matching message date code;

program code for sending a request from the computerized device to a resource over a network, the request requesting an additional font portion corresponding to the non-matching message data code; and

initiating, via the computerized device, display of a visual representation of the message.

12. The computer-readable medium of claim 11 wherein display of the visual representation is based at least in part on the limited set of font portions and the additional font portion.

13. The computer-readable medium of claim 11 wherein display of the visual representation comprises a graphical indication that rendering of the message is incomplete.

14. The computer-readable medium of claim 13 wherein the graphical indication comprises a place-filler symbol to represent the non-matching message data code.

15. The computer-readable medium of claim 11 further comprising program code for comprising updating the limited set of font portions by adding the additional font portion.

16. The computer-readable medium of claim 15 further comprising program code for removing the additional font portion from the limited set of font portions if the additional font portion is not used within a predetermined time.

17. The computer-readable medium of claim 15 further comprising program code for removing the additional font portion from the limited set of font portions to allow for obtaining additional font data portions.

18. The computer-readable medium of claim 11 wherein the request comprises the non-matching message data code.

19. The computer-readable medium of claim 11 wherein the message is displayed in substantially real-time with receiving the message from the remote source.

20. The computer-readable medium of claim 11 wherein the entire set of font portions comprises glyphs that can be combined to render information in Chinese, Japanese, or Korean, wherein the limited set of font portions comprises glyphs that are more commonly used than glyphs that are not included in the limited set of font portions.