Registers – Coded record sensors – Particular sensor structure
Patent
1982-06-28
1986-04-15
Pitts, Harold I.
Registers
Coded record sensors
Particular sensor structure
235472, 235487, 235493, G06K 710, G06K 714
Patent
active
045829861
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a method for the characteristic marking and/or identification of data-carriers which are inserted into a processing station for the purpose of being characteristically marked and identified, using data specifically characteristic of the data-carriers which are derived from individual physical properties thereof and logged in form of record traces which for data-carrier identification are compared with data derived from the scanned physical properties of the data carriers to be authenticated.
The invention further relates to apparatus for characteristically marking and identifying or authenticating a data-carrier, comprising a processing station in which the data-carrier is inserted for characteristic marking and identification and which comprises a scanner or detector device for scanning the physical data-carrier properties, and a store- or logging device which logs the data derived from the scanned physical properties in form of a record trace which, for data-carrier identification, or authentication, is compared with the data derived from the scanned physical properties of the data-carrier to be authenticated.
A method of the above described kind is already known from German AS 26 35 795 in which the data-carrier, e.g. a cheque card, in a processing station is conveyed beneath a sensing device which picks out a trace parallel to the direction of data-carrier movement.
In this manner a plurality of informations is obtained from data-carrier areas which succeed one another in a parallel direction to the direction of data-carrier movement through the station. However, this method raises the problem that the data-carrier must be extremely precisely positioned for each marking or checking pass in order to ensure that precisely the same trace will be scanned for authentication as for the original characteristic marking of the data carrier, which is all the more difficult in view of the fact that the trace should be as narrow as possible.
It is the aim of the present invention to provide a method of the kind specified which dispenses with the need for a precise lateral coordination of the data-carrier region to be evaluated relative to the device which scans this region. It is also the aim of the invention to provide apparatus for the practical application of said method.
The stated aim is achieved by a method of the kind specified which, according to the invention, is characterised in that, for the identification or authentication of a data-carrier, its physical properties are scanned within an area, or region thereof which is larger than the area, or region of this data-carrier which is covered by the characteristic marking, and that the amount of data collected from the larger area during identification is then compared with the amount of data from a smaller area of the data-carrier collected during characteristic marking of the latter and checked for the presence of correlations between the physical properties reflected in these collected data.
The apparatus for practical application of the method according to this invention is characterised in that it comprises a sensing device, or detector, which for the characteristic marking of the data-carrier picks up the physical properties thereof in a first region and for authenticity identification of the data-carrier picks up the physical properties in a second region thereof which second region includes the said first region but is larger than this, and in that an analyser is provided in which the data reflecting physical properties of the data-carrier collected from the said first region and from the said second, larger region, are mutually compared and checked for the presence of correlations between the physical properties which are reflected in these data.
The invention is hereinafter more particularly described with reference to the accompanying drawings showing examples of embodiments and wherein:
FIG. 1 is a schematic side view of part of the processor apparatus;
FIG. 2 is a diagrammatic representation of the processor; and
FIG. 3
REFERENCES:
patent: 4218674 (1980-08-01), Brosow
patent: 4423415 (1983-12-01), Goldman
Stockburger Hermann
Winderlich Hans-Georg
Brown Donald
Pitts Harold I.
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