DK198691A - METHOD AND DEVICE FOR SECRET CODE READING - Google Patents

METHOD AND DEVICE FOR SECRET CODE READING Download PDF

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Publication number
DK198691A
DK198691A DK198691A DK198691A DK198691A DK 198691 A DK198691 A DK 198691A DK 198691 A DK198691 A DK 198691A DK 198691 A DK198691 A DK 198691A DK 198691 A DK198691 A DK 198691A
Authority
DK
Denmark
Prior art keywords
code
value
user
owing
read
Prior art date
Application number
DK198691A
Other languages
Danish (da)
Other versions
DK168837B1 (en
DK198691D0 (en
Inventor
Jelsing Tom
Original Assignee
Tom Jelsing Menneske Maskineko
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tom Jelsing Menneske Maskineko filed Critical Tom Jelsing Menneske Maskineko
Priority to DK198691A priority Critical patent/DK168837B1/en
Publication of DK198691D0 publication Critical patent/DK198691D0/en
Publication of DK198691A publication Critical patent/DK198691A/en
Application granted granted Critical
Publication of DK168837B1 publication Critical patent/DK168837B1/en

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  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Collating Specific Patterns (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Abstract

A method of setting a code in such a manner that great security against unwanted discovery of the code at the moment of setting is achieved. An exemplary embodiment includes a display 1, on which the current code value 4 can be read when the eyes 11 of the user are located in an imaginary readability space 10, the dimensions and positioning of which are adapted to the natural eye position of the legal user. The code value 4, which is initially random, can be changed relatively to a desired value by using forms of input members 3 and 5 which are themselves without code information. Owing to the limited readability space, only the legal user can read the code, and owing to the fact that the code value can only be changed relatively from a random initial value, the code cannot be deduced from the hand movements of the user. The invention is a solution to a real security problem connected with the use of payment cards, but can also be used for other forms of information input where great anonymity is required. <IMAGE>
DK198691A 1991-12-10 1991-12-10 System for keeping a code input secret DK168837B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK198691A DK168837B1 (en) 1991-12-10 1991-12-10 System for keeping a code input secret

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK198691A DK168837B1 (en) 1991-12-10 1991-12-10 System for keeping a code input secret
DK198691 1991-12-10

Publications (3)

Publication Number Publication Date
DK198691D0 DK198691D0 (en) 1991-12-10
DK198691A true DK198691A (en) 1993-06-11
DK168837B1 DK168837B1 (en) 1994-06-20

Family

ID=8109278

Family Applications (1)

Application Number Title Priority Date Filing Date
DK198691A DK168837B1 (en) 1991-12-10 1991-12-10 System for keeping a code input secret

Country Status (1)

Country Link
DK (1) DK168837B1 (en)

Also Published As

Publication number Publication date
DK168837B1 (en) 1994-06-20
DK198691D0 (en) 1991-12-10

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed