Claims
- 1. A method of analyzing a signature, comprising:
receiving the signature; building a signature model based on the signature; checking a uniqueness of at least one of the signature and the signature model; and delivering a signal which indicates the uniqueness of the signature model.
- 2. The method of claim 1, wherein receiving the signature further comprises receiving at least one pair of coordinates which constitutes a description of the signature.
- 3. The method of claim 1, wherein receiving the signature further comprises receiving a train of polygons which constitutes a description of the signature.
- 4. The method of claim 2, wherein receiving the signature further comprises receiving a time code with each respective pair of coordinates.
- 5. The method of claim 2, wherein receiving the signature further comprises receiving a pressure value with each respective pair of coordinates.
- 6. The method of claim 1, wherein building a signature model further comprises classifying the signature.
- 7. The method of claim 1, wherein building a signature model further comprises building the signature model from a plurality of user signatures.
- 8. The method of claim 1, wherein checking a uniqueness further comprises checking at least one parameter of the signature.
- 9. The method of claim 8, wherein the parameter is a length of the signature.
- 10. The method of claim 8, wherein the parameter is a slope of letters of the signature.
- 11. The method of claim 8, wherein the parameter is a number of bends of the signature.
- 12. The method of claim 8, wherein the parameter is a height/length ratio of the signature.
- 13. The method of claim 8, wherein the parameter is a derivative of a movement of the signature.
- 14. The method of claim 8, wherein the parameter is a size of the signature.
- 15. The method of claim 8, wherein the parameter is a pressure of the signature.
- 16. The method of claim 8, further comprising comparing the parameter to a predetermined uniqueness limit.
- 17. The method of claim 1, wherein checking a uniqueness further comprises checking the signature against a database of existing signature models.
- 18. The method of claim 1, wherein delivering a signal which indicates the uniqueness of the signature model further comprises delivering a signal indicative of whether the signature is below a uniqueness limit.
- 19. The method of claim 1, wherein delivering a signal which indicates the uniqueness of the signature model further comprises delivering a signal indicative of whether the signature is above a uniqueness limit.
- 20. The method of claim 1, wherein delivering a signal which indicates the uniqueness of the signature model further comprises delivering a signal indicative of how much the signature deviates from a uniqueness limit.
- 21. The method of claim 1, wherein delivering a signal which indicates the uniqueness of the signature model further comprises delivering a signal indicative of what to change about the signature in order to render the signature unique.
- 22. A computer-readable medium containing instructions for analyzing a signature, the instructions comprising:
receiving the signature; building a signature model based on the signature; checking a uniqueness of at least one of the signature and the signature model; and delivering a signal which indicates the uniqueness of the signature model.
- 23. The computer-readable medium of claim 22, wherein the instruction for receiving the signature further comprises an instruction for receiving at least one pair of coordinates which constitutes a description of the signature.
- 24. The computer-readable medium of claim 22, wherein the instruction for receiving the signature further comprises an instruction for receiving a train of polygons which constitutes a description of the signature.
- 25. The computer-readable medium of claim 23, wherein the instruction for receiving the signature further comprises an instruction for receiving a time code with each respective pair of coordinates.
- 26. The computer-readable medium of claim 23, wherein the instruction for receiving the signature further comprises an instruction for receiving a pressure value with each respective pair of coordinates.
- 27. The computer-readable medium of claim 22, wherein the instruction for building a signature model further comprises an instruction for classifying the signature.
- 28. The computer-readable medium of claim 22, wherein the instruction for building a signature model further comprises an instruction for building the signature model from a plurality of user signatures.
- 29. The computer-readable medium of claim 22, wherein the instruction for checking a uniqueness further comprises an instruction for checking at least one parameter of the signature.
- 30. The computer-readable medium of claim 22, wherein the instruction for checking a uniqueness further comprises an instruction for checking the signature against a database of existing signature models.
- 31. The computer-readable medium of claim 22, wherein the instruction for delivering a signal which indicates the uniqueness of the signature model further comprises an instruction for delivering a signal indicative of whether the signature is below a uniqueness limit.
- 32. The computer-readable medium of claim 22, wherein the instruction for delivering a signal which indicates the uniqueness of the signature model further comprises an instruction for delivering a signal indicative of whether the signature is above a uniqueness limit.
- 33. The computer-readable medium of claim 22, wherein the instruction for delivering a signal which indicates the uniqueness of the signature model further comprises an instruction for delivering a signal indicative of how much the signature deviates from a uniqueness limit.
- 34. The computer-readable medium of claim 22, wherein the instruction for delivering a signal which indicates the uniqueness of the signature model further comprises an instruction for delivering a signal indicative of what to change about the signature in order to render the signature unique.
- 35. A system for analyzing a user's signature, comprising:
a user unit for receiving the signature from the user; and a checking device, in communication with the user unit, for building a signature model based on the signature, checking a uniqueness of at least one of the signature and the signature model, and deliver a signal which indicates the uniqueness of the signature model.
- 36. The system of claim 35, wherein the user unit is further operative to generate at least one pair of coordinates which constitute a description of the signature.
- 37. The system of claim 35, wherein the user unit is further operative to generate a train of polygons which constitutes a description of the signature.
- 38. The system of claim 35, further comprising a base provided with a position coding pattern and wherein the user unit is further operative to calculate at least a pair of coordinates generated from reading the coding pattern.
- 39. The system of claim 35 wherein the user unit further comprises and optical sensor and image processor for receiving and processing the signature.
- 40. The system of claim 36, wherein the user unit is further operative to generate a time code associated with each respective pair of coordinates.
- 41. The system of claim 36, wherein the user unit is further operative to receive a pressure value to be associated with each respective pair of coordinates.
- 42. The system of claim 35, wherein the checking device is operative to classify the signature.
- 43. The system of claim 35, wherein the checking device is further operative to build the signature model from a plurality of user signature.
- 44. The system of claim 35, wherein the checking device is further operative to check at least one parameter of the signature.
- 45. The system of claim 35, wherein the checking device is further operative to check the signature against a database of existing signature models.
- 46. The system of claim 35, wherein the checking device is further operative to deliver a signal indicative of whether the signature is below a uniqueness limit.
- 47. The system of claim 35, wherein the checking device is further operative to deliver a signal indicative of whether the signature is above a uniqueness limit.
- 48. The system of claim 35, wherein the checking device is further operative to deliver a signal indicative of how much the signature differs from a uniqueness limit.
- 49. The system of claim 35, wherein the checking device is further operative to deliver a signal indicative of what to change about the signature in order to render the signature unique.
Priority Claims (1)
Number |
Date |
Country |
Kind |
0000943-1 |
Mar 2000 |
SE |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority benefits based on Swedish Patent Application No. 0000943-1, Filed Mar. 21, 2000, and U.S. Provisional Application 60/207,880, filed May 30, 2000, the technical disclosures of both of which are hereby incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60207880 |
May 2000 |
US |