Information management system with authenticity check

Abstract

A payment product has a writing area ( 6 c ) which is intended for a user's signature. In the writing area there is a first position-coding pattern ( 5 ) which makes possible digital recording of the signature. The first position-coding pattern is a subset of a larger second position-coding pattern. The payment product is used in a payment system which is based on electronic payment information, which has been recorded by means of the position-coding pattern, being sent to a server unit, which utilizes the position-coding pattern to check that the payment information is valid.

1 - 35 . (canceled) 
   
   
       36 . A product comprising
 an identification area provided with a user subset of an absolute position-coding pattern, which user subset codes coordinates and is assigned to a specific user enabling the specific user to identify himself by recording coordinates coded by said user subset.   
   
   
       37 . A product according to  claim 36 , further comprising at least one further area, which is provided with a further subset of the absolute-coding pattern, which further subset codes coordinates that are different from the coordinates coded by the user subset and allows digital recording of handwritten information. 
   
   
       38 . A product according to  claim 36 , where the absolute position-coding pattern code coordinates of a plurality of points, each point's coordinates being coded by a plurality of symbols and each symbol contributing to the coding of more than one point. 
   
   
       39 . A product according to  claim 36 , where the absolute position-coding pattern codes each pair of coordinates by a plurality of marks and adjoining pairs of coordinates are partly coded by means of the same marks. 
   
   
       40 . A product according to  claim 38  or  39 , where the absolute position-coding pattern comprises marks that are displaced from respective nominal points in a raster. 
   
   
       41 . A product according to  claim 36 , where the identification area is a signature area adapted to receive the signature of the specific user. 
   
   
       42 . A product according to  claim 36 , which product is a payment product. 
   
   
       43 . A product according to  claim 36 , which product is a form. 
   
   
       44 . A product according to  claim 36 , where the user subset is unique to the specific user. 
   
   
       45 . A product according to  claim 36 , where the user subset and the further subset are assigned to the specific user. 
   
   
       46 . A product according to  claim 45 , where the user subset and the further subset are unique to the specific user. 
   
   
       47 . A product according to  claim 36 , where the product is further provided with human-interpretable graphics. 
   
   
       48 . A product according to  claim 47 , where the human-interpretable graphics is superimposed on the absolute position-coding pattern. 
   
   
       49 . A method of identifying a user of a product having an identification area provided with at least one subset of an absolute position-coding pattern, which codes coordinates, said method comprising
 receiving coordinates recorded from the identification area, and,   determining the coordinate area to which the coordinates belong and the user assigned to that coordinate area.   
   
   
       50 . A method according to  claim 49 , wherein the coordinates recorded from the identification area comprises a digital representation of a signature of the user of the product and further comprising comparing the digital representation of the signature with a signature associated with said coordinate area to which the coordinates belong. 
   
   
       51 . A method according to  claim 49 , further comprising receiving an identifier of a user unit and using the user unit identifier to check the authorization of the user of the product to use the product. 
   
   
       52 . A method according to  claim 49 , further comprising receiving coordinates recorded from another area on the product which is provided with a further subset of the absolute position-coding pattern. 
   
   
       53 . A method according to  claim 49  or  52 , further comprising determining a recipient of coordinates recorded from the product with the aid of the coordinates received, and sending at least some of the received coordinates to the recipient. 
   
   
       54 . A system for identifying a user of a product, comprising a product having an identification area provided with a subset of an absolute position-coding pattern, which subset codes coordinates, and a computer having access to a data structure which associates a user with a coordinate area coded by the subset, and a device for recording coordinates from the product, wherein the computer is adapted to receive coordinates recorded by the device from the identification area on the product and to identify the user of the product by using the data structure and the coordinates received. 
   
   
       55 . A system according to  claim 54 , wherein the data structure associates a plurality of different coordinate areas with a respective user. 
   
   
       56 . A system according to  claim 54 , wherein the identification area is a signature area and the data structure associates a signature with the coordinate area coded by the subset and the coordinates received by the computer comprises a digital representation of a signature written by the user in the signature area, the computer being adapted to compare the digital representation of the signature with the signature associated with the coordinate area coded by the subset. 
   
   
       57 . A system according to  claim 54  or  56 , wherein the data structure associates a plurality of different coordinate areas with a respective signature of a user. 
   
   
       58 . A system according to  claim 54 , wherein the product comprises another area provided with a further subset of the absolute position-coding pattern, wherein the computer is adapted to receive coordinates recorded by the device from the another area on the product, to determine a recipient with the aid of the data structure and the coordinates received, and to send at least part of the coordinates received to the thus-determined recipient. 
   
   
       59 . A system according to  claim 54  or  58 , wherein the data structure associates a plurality of different coordinate areas with a respective recipient.