Method and system for designing fonts

• US 20050122327A1
• Filed: 06/16/2004
• Published: 06/09/2005
• Est. Priority Date: 12/08/2003
• Status: Abandoned Application

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Greve, Geoffrey W.
• Application Number:
  US10/869,087
• Publication Number:
  US 20050122327A1
• Time in Patent Office: Days
• US Class Current: 345/467
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2380/04 Electronic labels
• CPC Class Codes: G09G 5/24 Generation of individual character patterns

Abstract

A method and system for defining a font character set for a display and for designing an electric writeable display using such a font character set is disclosed. A developer can create a font character set including a plurality of characters. The characters are overlapped within a bounded area in order to create a character mask. The character mask is composed of individual segments required to display one or more of the characters in the font character set. Activating one or more segments may display a character in the font character set. The method can be implemented in a system including a processor, a display, and a computer-readable storage medium containing instructions for one or more computer programs. Electrodes shaped and placed based on the segments of the character mask are used to implement an electric writeable display incorporating a font character set.

Claims

1. A method of designing a character mask image for a display, the method comprising:

designing a plurality of font characters for a font character set;

overlapping each of the plurality of font characters; and

generating a character mask image including one or more segments based on the overlapped font characters.

2. The method of claim 1, further comprising:

generating one or more control characters for a font character set; and

adjusting the one or more control characters.

3. The method of claim 1, further comprising:

determining whether one or more image errors exist;

loading the character mask image into an error correction tool;

correcting the one or more image errors in the character mask image; and

storing the corrected character mask image.

4. The method of claim 1, further comprising:

generating a boundary box bounding the character mask image;

loading the boundary box and the character mask image into a character generation tool;

generating a character list based on the font characters in the font character set; and

defining one or more segments for each font character in the character-list using the boundary box and the character mask image.

5. The method of claim 4, further comprising:

creating a model of a circuit board including at least one character mask image.

6. The method of claim 1 wherein a segment comprises one or more of a vertical stem, a horizontal stem, a rounded shape, and a round-to-square transition.

7. The method of claim 1 wherein the plurality of segments comprises no more than 96 segments.

8. The method of claim 7 wherein the plurality of segments comprises no more than 64 segments.

9. A system for designing a font character set for a display, the system comprising:

a processor;

a computer-readable storage medium operably coupled to the processor; and

a display,

wherein the computer-readable storage medium contains one or more instructions for performing a method of designing a font character set for the display, the method comprising;

designing a plurality of font characters for a font character set;

overlapping each of the plurality of font characters; and

generating a character mask image including one or more segments based on the overlapped font characters.

10. The system of claim 9, wherein the computer-readable storage medium further contains one or more instructions for performing the following:

generating one or more control characters for a font character set; and

adjusting the one or more control characters.

11. The system of claim 9, wherein the computer-readable storage medium further contains one or more instructions for performing the following:

determining whether one or more image errors exist;

loading the character mask image into an error correction tool;

correcting the one or more image errors in the character mask image; and

storing the corrected character mask image.

12. The system of claim 9, wherein the computer-readable storage medium further contains one or more instructions for performing the following:

generating a boundary box bounding the character mask image;

loading the boundary box and the character mask image into a character generation tool;

generating a character list based on the font characters in the font character set; and

defining one or more segments for each font character in the character list using the boundary box and the character mask image.

13. The system of claim 12, wherein the computer-readable storage medium further contains one or more instructions for performing the following:

creating a model of a circuit board including at least one character mask image.

14. The system of claim 9 wherein a segment comprises one or more of a vertical stem, a horizontal stem, a rounded shape, and a round-to-square transition.

15. The system of claim 9 wherein the plurality of segments comprises no more than 96 segments.

16. The system of claim 15 wherein the plurality of segments comprises no more than 64 segments.

17. A method for designing an electric writeable display, the method comprising:

designing a character mask for a font character set, wherein the character mask includes a plurality of segments;

determining positions for one or more character locations on an electric writeable display; and

for each character location, defining locations for a plurality of electrodes, wherein each electrode is shaped and positioned to match a segment of the character mask at the character location.

18. The method of claim 17, further comprising:

generating a circuit board based on the defined locations for the plurality of electrodes for each of the one or more character locations.

19. The method of claim 18, further comprising:

receiving display information from an input device; and

displaying a message on an electric writeable display adjacent to the circuit board by providing power to electrodes on the circuit board, wherein the displayed message corresponds to the display information received from the input device.

20. The method of claim 17 wherein each segment is separated from its adjoining segments by at least approximately 0.015 inches.

21. The method of claim 17 wherein each segment has an internal diameter of at least approximately 0.011 inches.