Method and system to generate an image for monitoring user interaction with a computer
First Claim
1. A method of generating an image for use in monitoring interaction between a user and a computer, the method including:
- generating random reference data wherein the reference data comprises a plurality of characters;
randomly selecting a font set from one of a plurality of font sets, each font set comprising a plurality of font images;
retrieving for each character of the reference data a corresponding font image; and
combining the retrieved font images.
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Abstract
A method of, and system for, generating an image for use in monitoring interaction between a user and a computer is provided. The method includes generating random reference data wherein the reference data comprises a plurality of characters and randomly selecting a font from one of a plurality of fonts. Each font may comprise a plurality of font images and a font image may be retrieved for each character of the reference data. Thereafter the retrieved font images may be combined. In one embodiment, each font image includes a font background and a user identifiable character defined by removal of the font background so as to define the user identifiable character. In addition or instead, each font image may include a font background including a plurality of font patterns, and a user identifiable character defined by a concentration of the patterns so as to define the user identifiable character.
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Citations
23 Claims
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1. A method of generating an image for use in monitoring interaction between a user and a computer, the method including:
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generating random reference data wherein the reference data comprises a plurality of characters;
randomly selecting a font set from one of a plurality of font sets, each font set comprising a plurality of font images;
retrieving for each character of the reference data a corresponding font image; and
combining the retrieved font images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A machine-readable medium embodying a sequence of instructions that, when executed by a machine, cause the machine to:
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generate random reference data wherein the reference data comprises a plurality of characters;
randomly select a font set from one of a plurality of font sets, each font set comprising a plurality of font images;
retrieve for each character of the reference data a corresponding font image; and
combine the retrieved font images thereby to generate an image for use in monitoring interaction between a user and a computer. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A computer system to generate an image for use in monitoring user interaction with a computer, the system including at least one server to:
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generate random reference data wherein the reference data comprises a plurality of characters;
randomly select a font from one of a plurality of fonts, each font comprising a plurality of font images;
retrieve for each character of the reference data a corresponding font image; and
combine the retrieved font images. - View Dependent Claims (21, 22)
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23. A computer system to generate an image for use in monitoring user interaction with a computer, the system including:
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means to generate random reference data wherein the reference data comprises a plurality of characters;
means to randomly select a font from one of a plurality of fonts, each font comprising a plurality of font images;
means to retrieve for each character of the reference data a corresponding font image; and
means to combine the retrieved font images.
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Specification