EP0432409B1 - Data input keyboard for coded locks or the like - Google Patents

Data input keyboard for coded locks or the like Download PDF

Info

Publication number
EP0432409B1
EP0432409B1 EP90119778A EP90119778A EP0432409B1 EP 0432409 B1 EP0432409 B1 EP 0432409B1 EP 90119778 A EP90119778 A EP 90119778A EP 90119778 A EP90119778 A EP 90119778A EP 0432409 B1 EP0432409 B1 EP 0432409B1
Authority
EP
European Patent Office
Prior art keywords
key
keys
input device
values
digits
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP90119778A
Other languages
German (de)
French (fr)
Other versions
EP0432409A1 (en
Inventor
Rudolf Dipl.-Ing. Schittenhelm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Theodor Kromer & Cokg Spezialfabrik fur Sicherheitsschlosser GmbH
Original Assignee
Theodor Kromer & Cokg Spezialfabrik fur Sicherheitsschlosser GmbH
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 Theodor Kromer & Cokg Spezialfabrik fur Sicherheitsschlosser GmbH filed Critical Theodor Kromer & Cokg Spezialfabrik fur Sicherheitsschlosser GmbH
Publication of EP0432409A1 publication Critical patent/EP0432409A1/en
Application granted granted Critical
Publication of EP0432409B1 publication Critical patent/EP0432409B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F7/00Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1025Identification of user by a PIN code
    • G07F7/1033Details of the PIN pad
    • G07F7/1041PIN input keyboard gets new key allocation at each use
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00674Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons
    • G07C9/00698Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons actuated in function of displayed informations
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/30Individual registration on entry or exit not involving the use of a pass
    • G07C9/32Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/33Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password

Definitions

  • the invention relates to an input device with a keypad for data input into electronic systems.
  • Such an input device is known from WO-A-81 02 349.
  • the values or symbols are numbers or digits from 0 to 9. These can now be completely changed in their order with a random generator, so that an outsider cannot see the actual sequence of the entered values by observing a data entry. However, with each operation there is a completely random arrangement of the individual digits or values, so that the user not only has to concentrate on entering his particular code or data sequence, but also has to search for each individual value of this sequence. The risk of operating errors is correspondingly high.
  • the object is therefore to provide an input device of the type mentioned at the outset for entering data, code sequences, personal identification numbers or the like create, in which neither the observation nor the prepared keys allow conclusions to be drawn about the required sequence of operation of the individual keys when entering certain data, but the risk of operating errors is kept as small as possible.
  • each key can be unlabeled and each key can be assigned a particularly transparent field with a seven-segment display which, when the keypad is activated or activated, displays the value assigned at random or lights up with this value.
  • the transparent field can be provided on the button itself, in particular on its surface or next to it. Misuse is practically impossible, since after activating the input device the user has a complete labeled keypad in front of him and the individual Values assigned to the keys also follow one another in the usual order, with only the beginning of this sequence being at a different point in the entire keypad.
  • a microprocessor can be connected to the random number generator, and the random number generator can be used to relocate the beginning of the ascending row to any key, while the microprocessor assigns the ascending row of values or numbers to the other keys from the other keys.
  • Simple electronic means namely the random number generator and a microprocessor, can thus be used to move the row of values or digits, which in each case remain unchanged, in a simple manner within the keypad.
  • the seven-segment display can be designed as an LCD display. However, all other conceivable and known, controllable seven-segment displays can also be used.
  • the LCD display has the advantage that it has only a very low power requirement, which means that it can even be used with battery-operated input devices.
  • the input device has a time switching element which switches off the display on the keys after a predetermined time after they have been operated. This ensures that the assignment of values to the individual keys is not maintained at least for a short time after data entry and that an observer could possibly enter the data previously observed in the appropriate order.
  • An input device for inputting data, codes, personal identification numbers or the like into electrical systems has a keypad 11, which has a total of ten keys 1 to 10 in the exemplary embodiment.
  • the keys 1 to 9 are arranged in a manner known per se in three rows of three keys each, that is to say in a square, while the tenth key is arranged in the middle below the bottom row of this arrangement.
  • These keys are also assigned the natural numbers from one to nine and the tenth key the number zero, these values or numbers being arranged next to one another in ascending order.
  • the input device has a random generator, not shown in the drawing, assigned to the keypad 11, by means of which the beginning of the row determined by the keys 1 to 9 can be varied and, when the keypad or a specific key of this field is actuated, can be shifted to different keys, whereby the ascending row of the subsequent digits is also shifted and is therefore maintained.
  • the random number generator ensures that the beginning "one" of the ascending row of digits lies on the key 4, so that the last digit nine of this row belongs to the button 3 in this case.
  • FIG. 4 shows an exemplary embodiment in which the key 10 is also involved in the shifting of the number row.
  • the beginning of the row of digits ie the "one”
  • key 9 is marked with "two"
  • key 10 with "three”.
  • the end of the ten-digit row is located at key 7 and is identified by the "zero” in this case. If necessary, one could of course also view this "zero" as the beginning of the row, so that the last digit "nine" then belongs to key 6.
  • the keys 1 to 10 are unlabeled in the exemplary embodiment and each key is assigned a preferably transparent field 12 with a seven-segment display 13.
  • the keypad 11 When the keypad 11 is actuated or activated, the values of all keys 1 to 10 which are randomly provided light up or become visible in a suitable manner. This state is shown in all four figures.
  • the fields 12 could be provided on the respective key itself, in particular on the surface thereof, that is to say to some extent also form the keys in the figures shown.
  • a microprocessor can be connected to the random number generator in order to implement the shifting of the sequence of numbers which remains the same, so that the random number generator can shift the beginning of the ascending number line to any key 1 to 10 is, while this microprocessor assigns the ascending order of the values or digits to the other keys in a constant order, starting from the beginning that lies on different keys.
  • the input device can have a timer which switches off the display on the buttons 1 to 10 after a predetermined time after the end of their operation. If any key or, for example, the zero key or possibly an additional start key, not shown in the exemplary embodiment, is then pressed again for a new data input, the random generator in turn ensures a changed beginning of the row of digits which, however, retains its sequence in itself.
  • the keypad 11 of an input device for entering data in electronic systems is connected to a random generator in such a way that the respective displays, for example seven-segment displays 13, of the individual keys thereof are actuated and in each case the Start of the series of values or digits determined by the keys, for example in the case of a series of digits from zero to nine or one to nine, ie the value zero or one can be varied and can be shifted to different keys when the keypad is actuated.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)

Description

Die Erfindung betrifft eine Eingabevorrichtung mit Tastenfeld für Dateneingabe in elektronische Systeme gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to an input device with a keypad for data input into electronic systems.

Eine derartige Eingabevorrichtung ist aus WO-A-81 02 349 bekannt. Dabei sind die Werte oder Symbole Zahlen oder Ziffern von 0 bis 9. Diese können nun bei jedem Eingabevorgang durch einen Zufallsgenerator in ihrer Reihenfolge völlig verändert werden, so daß ein Außenstehender durch Beobachten einer Dateneingabe nicht die wirkliche Abfolge der eingegebenen Werte erkennen kann. Es ergibt sich jedoch bei jedem Bedienungsvorgang eine völlig regellose Anordnung der einzelnen Ziffern oder Werte, so daß sich der Benutzer nicht nur darauf konzentrieren muß, seine besondere Code- oder Datenfolge einzugeben, sondern auch noch jeden einzelnen Wert dieser Folge suchen muß. Entsprechend groß ist die Gefahr von Bedienungsfehlern.Such an input device is known from WO-A-81 02 349. The values or symbols are numbers or digits from 0 to 9. These can now be completely changed in their order with a random generator, so that an outsider cannot see the actual sequence of the entered values by observing a data entry. However, with each operation there is a completely random arrangement of the individual digits or values, so that the user not only has to concentrate on entering his particular code or data sequence, but also has to search for each individual value of this sequence. The risk of operating errors is correspondingly high.

Es besteht deshalb die Aufgabe, eine Eingabevorrichtung der eingangs erwähnten Art zur Eingabe von Daten, Codefolgen, persönlichen Indentifikationsnummern oder dergleichen zu schaffen, bei welcher weder durch Beobachtung noch durch präparierte Tasten Rückschlüsse auf die erforderliche Betätigungsfolge der einzelnen Tasten beim Eingeben bestimmter Daten möglich sind, trotzdem aber die Gefahr von Bedienungsfehlern so klein wie möglich gehalten wird.The object is therefore to provide an input device of the type mentioned at the outset for entering data, code sequences, personal identification numbers or the like create, in which neither the observation nor the prepared keys allow conclusions to be drawn about the required sequence of operation of the individual keys when entering certain data, but the risk of operating errors is kept as small as possible.

Diese Aufgabe wird bei einer Eingabevorrichtung gemäß dem Oberbegriff des Patentanspruches 1 mit den Mitteln und Merkmalen des kennzeichnenden Teiles des Patentanspruches 1 gelöst.This object is achieved in an input device according to the preamble of claim 1 with the means and features of the characterizing part of claim 1.

Auf diese Weise ergibt sich eine Eingabevorrichtung, bei welcher der Benutzer durch einen ersten Tastendruck zunächst selbst erfährt, bei welcher Taste der niedrigste Wert oder die niedrigste Ziffer liegt, von welcher aus dann die aufsteigende Reihe der übrigen Werte bei den benachbarten Tasten ausgeht. Es bleibt aber in vorteilhafter Weise jeweils die Reihe der Ziffern oder Werte als solche unverändert, da sie nur insgesamt verschoben wird. Eine regellose Anordnung der einzelnen Ziffern oder Werte bei jedem Bedienungsvorgang und die daraus resultierende Gefahr von Bedienungsfehlern wird vermieden.This results in an input device in which the user first finds out, by pressing a first key, which key is the lowest value or the lowest digit, from which the ascending row of the other values for the neighboring keys is based. However, the row of digits or values as such remains advantageously unchanged since it is only shifted as a whole. A random arrangement of the individual digits or values during each operation and the resulting risk of operating errors is avoided.

Besonders zweckmäßig ist es, wenn bei einer Eingabevorrichtung mit einem Tastenfeld mit zehn von Null bis neun markierten Tasten die Null-Taste unverändert bleibt und die sich anschließende Zahlenreihe bezüglich ihres Anfanges auf den Tasten veränderbar ist. Solche Tastenfelder haben nämlich häufig eine Anordnung von dreimal drei Tasten mit den Ziffern von 1 bis 9 und unterhalb dieser Anordnung die zusätzliche Null-Taste, die gegebenenfalls bei dieser Ausgestaltung der Erfindung ihren Wert behalten könnte, während innerhalb der übrigen neun Tasten jeweils eine Verschiebung der Ziffernreihe durch den Zufallsgenerator bewirkt werden kann.It is particularly expedient if, in the case of an input device with a keypad with ten keys marked from zero to nine, the zero key remains unchanged and the subsequent number series can be changed with respect to the beginning of the keys. Such key fields often have an arrangement of three times three keys with the digits from 1 to 9 and below this arrangement the additional zero key, which could possibly retain its value in this embodiment of the invention, while within the remaining nine keys each a shift of Row of digits can be effected by the random number generator.

Sowohl bei gleichbleibender Null-Taste als auch bei einem Tastenfeld, bei welchem alle Tasten in die jeweilige Verschiebung der aufsteigenden Reihe der einzelnen Werte einbezogen sind, können diese Tasten unbeschriftet sein und es kann jeder Taste ein insbesondere transparentes Feld mit einer Sieben-Segmentanzeige zugeordnet sein, die beim Betätigen oder aktivieren des Tastenfeldes den dann zufällig zugeordneten Wert anzeigt oder mit diesem Wert aufleuchtet. Dabei kann das transparente Feld an der Taste selbst, insbesondere an ihrer Oberfläche oder daneben vorgesehen sein. Somit sind Fehlbenutzungen praktisch ausgeschlossen, da der Benutzer nach dem Aktivieren der Eingabevorrichtung jeweils ein komplettes beschriftetes Tastenfeld vor Augen hat und dabei die einzelnen Werte, die den Tasten zugeordnet sind, auch in der gewohnten Reihenfolge aufeinander folgen, wobei lediglich der Anfang dieser Folge jeweils an einer anderen Stelle des gesamten Tastenfeldes liegt.Both with a constant zero key and with a key field in which all keys are included in the respective shift of the ascending row of the individual values, these keys can be unlabeled and each key can be assigned a particularly transparent field with a seven-segment display which, when the keypad is activated or activated, displays the value assigned at random or lights up with this value. The transparent field can be provided on the button itself, in particular on its surface or next to it. Misuse is practically impossible, since after activating the input device the user has a complete labeled keypad in front of him and the individual Values assigned to the keys also follow one another in the usual order, with only the beginning of this sequence being at a different point in the entire keypad.

Mit dem Zufallsgenerator kann ein Mikroprozessor verbunden sein und durch den Zufallsgenerator kann jeweils der Anfang der aufsteigenden Reihe auf eine beliebige Taste verlegbar sein, während der Mikroprozessor von diesem variierenden Anfang ausgehend den übrigen Tasten jeweils die aufsteigende Reihe der Werte oder Ziffern zuordnet. Somit kann durch einfache elektronische Mittel, nämlich den Zufallsgenerator und einen Mikroprozessor die jeweils in sich unverändert bleibende Reihe der Werte oder Ziffern auf einfache Weise innerhalb des Tastenfeldes verschoben werden.A microprocessor can be connected to the random number generator, and the random number generator can be used to relocate the beginning of the ascending row to any key, while the microprocessor assigns the ascending row of values or numbers to the other keys from the other keys. Simple electronic means, namely the random number generator and a microprocessor, can thus be used to move the row of values or digits, which in each case remain unchanged, in a simple manner within the keypad.

Die Sieben-Segmentanzeige kann als LCD-Anzeige ausgebildet sein. Es sind aber auch alle sonstigen denkbaren und bekannten, ansteuerbaren Sieben-Segmentanzeigen verwendbar. Die LCD-Anzeige hat dabei den Vorteil, daß sie nur einen sehr geringen Strombedarf hat, also sogar bei batteriegetriebenen Eingabevorrichtungen zum Einsatz kommen kann.The seven-segment display can be designed as an LCD display. However, all other conceivable and known, controllable seven-segment displays can also be used. The LCD display has the advantage that it has only a very low power requirement, which means that it can even be used with battery-operated input devices.

Es kann zweckmäßig sein, wenn die Eingabevorrichtung ein Zeitschaltglied aufweist, welches die Anzeige an den Tasten nach einer vorbestimmten Zeit nach Beendigung von deren Bedienung abschaltet. Dadurch wird sichergestellt, daß nicht wenigstens für eine kurze Zeit nach einer Dateneingabe die Wertezuordnung zu den einzelnen Tasten aufrechterhalten bleibt und ein Beobachter evtl. doch die kurz zuvor beobachteten Daten in der entsprechenden Reihenfolge eingeben könnte.It may be expedient if the input device has a time switching element which switches off the display on the keys after a predetermined time after they have been operated. This ensures that the assignment of values to the individual keys is not maintained at least for a short time after data entry and that an observer could possibly enter the data previously observed in the appropriate order.

Insgesamt ergibt sich eine Eingabevorrichtung, deren Bedienung gegenüber herkömmlichen Tastenfeldern unverändert ist, bei der aber der Anfang der in Reihe aufeinander folgenden Werte, Symbole oder Ziffern jeweils auf eine andere Taste fällt, so daß aus der Beobachtung der Bedienung von der Ferne her ohne Einsicht auf die jeweils angezeigten Werte der Tasten keine Rückschlüsse auf eine Datenfolge oder persönliche Identifikationsnummer oder dergleichen möglich sind.Overall, there is an input device, the operation of which is unchanged compared to conventional keypads, but in which the beginning of the values, symbols which follow one another in series or numbers each fall on a different key, so that from observing the operation from a distance without viewing the respectively displayed values of the keys, no conclusions can be drawn about a data sequence or personal identification number or the like.

Nachstehend ist die Erfindung mit ihren ihr als wesentlich zugehörenden Einzelheiten anhand der Zeichnung in einem Ausführungsbeispiel noch näher erläutert.The invention is explained in more detail below with its details that are essential to it, using the drawing in an exemplary embodiment.

Es zeigt in schematisierter Darstellung:

Fig. 1
ein Tastenfeld einer Eingabevorrichtung, wobei die Anzeige der den einzelnen Tasten zugeordneten Werte oder Ziffern neben diesen Tasten angeordnet sind und eine unter einem Neunerfeld von Tasten liegende Taste Null und die übrigen Tasten von der obersten linken Taste aus beginnend mit den Ziffern 1 bis 9 versehen sind,
Fig. 2
eine der Fig. 1 entsprechende Darstellung, bei welcher die Null Taste unverändert ist, innerhalb der übrigen Tasten jedoch der Anfang der Ziffernreihe auf die vierte Taste verschoben ist,
Fig. 3
eine Darstellung des Tastenfeldes, bei welcher die Null-Taste unverändert, im übrigen aber der Anfang der Ziffernfolge auf die mittlere Taste des Tastenfeldes verschoben ist und
Fig. 4
das Tastenfeld der Fig. 1, bei welchem die Ziff. 1 und damit der Anfang der verschieblichen Reihe der Ziffernfolge zu der vorletzten Taste verschoben ist.
It shows in a schematic representation:
Fig. 1
a keypad of an input device, the display of the values or numbers assigned to the individual keys being arranged next to these keys and a zero key lying under a nine-key array and the remaining keys being provided with the numbers 1 to 9 starting from the top left key ,
Fig. 2
1 corresponding representation, in which the zero key is unchanged, but within the other keys the beginning of the row of digits is shifted to the fourth key,
Fig. 3
a representation of the keypad in which the zero key is unchanged, but the rest of the beginning of the number sequence is shifted to the middle key of the keypad and
Fig. 4
the keypad of FIG. 1, in which the number. 1 and thus the beginning of the movable row of the digit sequence is shifted to the penultimate key.

Eine Eingabevorrichtung für die Eingabe von Daten, Codes, persönlichen Identifikationsnummern oder dergleichen in elektrnische Systeme weist ein Tastenfeld 11 auf, welches im Ausführungsbeispiels insgesamt zehn Tasten 1 bis 10 hat. Dabei sind die Tasten 1 bis 9 in an sich bekannter Weise in drei Reihen zu je drei Tasten, also gewissermaßen in einem Quadrat, angeordnet, während die zehnte Taste in der Mitte unterhalb der untersten Reihe dieser Anordnung angeordnet ist. Diesen Tasten sind auch jeweils die natürlichen Ziffern von eins bis neun und der zehnten Taste die Ziffer Null zugeordnet, wobei diese Werte bzw. Ziffern in aufsteigender Reihe nebeneinander angeordnet sind.An input device for inputting data, codes, personal identification numbers or the like into electrical systems has a keypad 11, which has a total of ten keys 1 to 10 in the exemplary embodiment. The keys 1 to 9 are arranged in a manner known per se in three rows of three keys each, that is to say in a square, while the tenth key is arranged in the middle below the bottom row of this arrangement. These keys are also assigned the natural numbers from one to nine and the tenth key the number zero, these values or numbers being arranged next to one another in ascending order.

Die Eingabevorrichtung weist einen in der Zeichnung nicht dargestellten, dem Tastenfeld 11 zugeordneten Zufallsgenerator auf, durch den der Anfang der durch die Tasten 1 bis 9 bestimmten Reihe variierbar und bei Betätigung des Tastenfeldes oder einer bestimmten Taste dieses Feldes auf jeweils unterschiedliche Tasten verschiebbar ist, wobei die aufsteigende Reihe der sich anschließenden Ziffern jeweils mitverschoben wird und also aufrechterhalten bleibt.The input device has a random generator, not shown in the drawing, assigned to the keypad 11, by means of which the beginning of the row determined by the keys 1 to 9 can be varied and, when the keypad or a specific key of this field is actuated, can be shifted to different keys, whereby the ascending row of the subsequent digits is also shifted and is therefore maintained.

In Fig. 2 ist beispielsweise durch den Zufallsgenerator dafür gesorgt, daß der Anfang "eins" der aufsteigenden Ziffernreihe auf der Taste 4 liegt, so daß die letzte Ziffer neun dieser Reihe in diesem Falle zu der Taste 3 gehört.In Fig. 2, for example, the random number generator ensures that the beginning "one" of the ascending row of digits lies on the key 4, so that the last digit nine of this row belongs to the button 3 in this case.

In Fig. 3 sind der Anfang und demgemäß auch das Ende dieser von eins bis neun reichenden Ziffernreihe um eine weitere Taste verschoben, so daß der Anfang dieser Reihe, also die Ziffer "eins" auf Taste 5 zu liegen kommt, während demgemäß die "neun" folgerichtig die Taste 4 markiert.In Fig. 3, the beginning and accordingly also the end of this row of digits ranging from one to nine are shifted by a further key, so that the beginning of this row, ie the number "one", is located on key 5, while the "nine" "consequently marked the key 4.

In diesem Ausführungsbeispiel gemäß den Figuren 2 und 3 bleibt dabei die in Null-Taste unverändert, behält also für alle Betätigungen den Wert "null" während sich die anschließende Zahlenreihe mit den Ziffern eins bis neun bezüglich ihres Anfanges an den Tasten eins bis neun verändern läßt.In this embodiment according to Figures 2 and 3 remains the zero key remains unchanged, so it retains the value "zero" for all actuations, while the subsequent series of numbers with the digits one to nine can be changed with regard to their beginning on keys one to nine.

Fig. 4 zeigt hingegen ein Ausführungsbeispiel, bei welchem auch die Taste 10 in die Verschiebung der Ziffern-Reihe einbezogen ist. Dabei ist beispielsweise der Anfang der Ziffernreihe, also die "Eins"auf die Taste 8 verschoben, so daß in der aufsteigenden Ziffernreihe die Taste 9 mit "zwei" und die Taste 10 mit "drei" markiert ist. Das Ende der insgesamt zehn Ziffern umfassenden Reihe befindet sich dabei bei der Taste 7 und wird in diesem Falle durch die "Null" gekennzeichnet. Gegenbenenfalls könnte man natürlich auch diese "Null" als Anfang der Reihe ansehen, so daß dann die letzte Ziffer "neun" zu Taste 6 gehört.FIG. 4, on the other hand, shows an exemplary embodiment in which the key 10 is also involved in the shifting of the number row. For example, the beginning of the row of digits, ie the "one", has been shifted to key 8, so that in the ascending row of digits key 9 is marked with "two" and key 10 with "three". The end of the ten-digit row is located at key 7 and is identified by the "zero" in this case. If necessary, one could of course also view this "zero" as the beginning of the row, so that the last digit "nine" then belongs to key 6.

Dabei sind die Tasten 1 bis 10 im Ausführungsbeispiel unbeschriftet und jeder Taste ist ein vorzugsweise transparentes Feld 12 mit einer Sieben-Segmentanzeige 13 zugeordnet. Beim Betätigen oder Aktivieren des Tastenfeldes 11 leuchten die jeweils zufällig vorgesehenen Werte aller Tasten 1 bis 10 auf oder werden in geeigneter Weise sichtbar. Dieser Zustand ist bei allen vier Figuren dargestellt.The keys 1 to 10 are unlabeled in the exemplary embodiment and each key is assigned a preferably transparent field 12 with a seven-segment display 13. When the keypad 11 is actuated or activated, the values of all keys 1 to 10 which are randomly provided light up or become visible in a suitable manner. This state is shown in all four figures.

Selbstverständlich wäre es auch möglich, daß die Felder 12 an der jeweiligen Taste selbst, insbesondere an deren Oberfläche vorgesehen sind, also in den dargestellten Figuren gewissermaßen gleichzeitig auch die Tasten bilden könnten.Of course, it would also be possible for the fields 12 to be provided on the respective key itself, in particular on the surface thereof, that is to say to some extent also form the keys in the figures shown.

Es sei noch erwähnt, daß zur Realisierung der Verschiebung der in ihrer Reihenfolge gleichbleibenden Ziffern-Reihe mit dem Zufallsgenerator ein Mikroprozessor verbunden sein kann, so daß durch den Zufallsgenerator jeweils der Anfang der aufsteigenden Reihe auf eine beliebige Taste 1 bis 10 verlegbar ist, während dieser Mikroprozessor von diesem jeweils an verschiedenen Tasten zu liegen kommenden Anfang ausgehend den übrigen Tasten in gleichbleibender Reihenfolge die aufsteigende Reihe der Werte oder Ziffern zuordnet.It should also be mentioned that a microprocessor can be connected to the random number generator in order to implement the shifting of the sequence of numbers which remains the same, so that the random number generator can shift the beginning of the ascending number line to any key 1 to 10 is, while this microprocessor assigns the ascending order of the values or digits to the other keys in a constant order, starting from the beginning that lies on different keys.

Damit sichergestellt ist, daß die jeweils von dem Zufallsgenerator und dem Mikroprozessor bestimmte Verschiebung der Ziffernreihe nicht über einen längeren Zeitraum und somit doch für einen Nachbenutzer bestehen bleibt, sondern auch dann mit Sicherheit abgeschaltet wird, wenn der Benutzer einen solchen Abschaltvorgang unterläßt bzw. wenn ein solcher willentlicher Abschaltvorgang gar nicht vorgesehen ist, kann die Eingabevorrichtung ein Zeitschaltglied aufweisen, welches die Anzeige an den Tasten 1 bis 10 nach einer vorbestimmten Zeit nach Beendigung von deren Bedienung abschaltet. Wird dann für eine erneute Dateneingabe wieder irgend eine Taste oder beispielsweise die Null-Taste oder evtl. eine zusätzliche, im Ausführungsbeispiel nicht dargestellte Start-Taste betätigt, sorgt der Zufallsgenerator wiederum für einen geänderten Anfang der Ziffernreihe die aber in sich selbst ihre Reihenfolge behält.
Das Tastenfeld 11 einer Eingabevorrichtung zur Eingabe von Daten in elektronische Systeme, z.B. in Codeschlössern, Geldausgabeautomaten, Rechenmaschinen oder dergleichen, ist mit einem Zufallsgenerator derart verbunden, daß die jeweiligen Anzeigen, z.B. Sieben-Segmentanzeigen 13, der einzelnen Tasten davon angesteuert werden und jeweils der Anfang der durch die Tasten bestimmten Reihe von Werten oder Ziffern, beispielsweise bei einer Ziffernreihe von null bis neun oder eins bis neun also der Wert null oder eins variierbar und bei der Betätigung des Tastenfeldes auf jeweils unterschiedliche Tasten verschiebbar ist. Die aufsteigende Reihe der sich an diesen ersten Wert anschließenden Werte oder Ziffern bleibt dabei aufrechterhalten und wird mitverschoben, so daß ein Benutzer eine bestimmte, einem Code entsprechende Folge von Werten oder Ziffern in für ihn gewohnter Reihenfolge eingeben kann, aber bei jeder Benutzung von einem anderen Anfang an dem Tastenfeld ausgehend, wodurch Rückschlüsse auf die entsprechende Ziffern-Folge für einen unbefugten Beobachter verschleiert werden.
This ensures that the shift of the number of digits determined by the random number generator and the microprocessor does not remain for a longer period of time and thus still for a subsequent user, but is also switched off with certainty if the user fails to do so or if a such a deliberate switch-off process is not provided at all, the input device can have a timer which switches off the display on the buttons 1 to 10 after a predetermined time after the end of their operation. If any key or, for example, the zero key or possibly an additional start key, not shown in the exemplary embodiment, is then pressed again for a new data input, the random generator in turn ensures a changed beginning of the row of digits which, however, retains its sequence in itself.
The keypad 11 of an input device for entering data in electronic systems, for example in code locks, cash dispensers, calculating machines or the like, is connected to a random generator in such a way that the respective displays, for example seven-segment displays 13, of the individual keys thereof are actuated and in each case the Start of the series of values or digits determined by the keys, for example in the case of a series of digits from zero to nine or one to nine, ie the value zero or one can be varied and can be shifted to different keys when the keypad is actuated. The ascending row of the values or digits following this first value is maintained and is also shifted, so that a user has a certain sequence corresponding to a code Can enter values or digits in the order they are used to, but each time it starts from a different start on the keypad, obscuring conclusions about the corresponding sequence of digits for an unauthorized observer.

Claims (9)

  1. An input device with keyboard (11) for entering data into electronic systems, for example into coded locks, money dispensers, computing machines or the like, including a plurality of keys (1 to 10) each assigned to one value, symbol or digit, said values being arranged in ascending sequence, particularly with the natural numbers of zero to nine, the input device having a random number generator associated with the keyboard (11), characterized in that by means of the random number generator the start of the series of values or digits determined by the keys (1 to 10) is variable and upon actuation of a key or the keyboard is each time shiftable to different keys, and that the ascending sequence of the values or digits is each time maintained and is co-shiftable, and that after operation has been concluded the keyboard (11) is switched off, so that when the keys are actuated anew the random number generator effects a new allocation of the keys.
  2. An input device as claimed in claim 1, characterized in that the keys (11) are blank and assigned to each key is a panel (12), particularly a transparent one, with a seven-segment display (13) which, upon actuation or activation of a key, displays the then randomly associated value or lights up with the same.
  3. A keyboard as claimed in claim 1, characterized in that a transparent panel containing a seven-segment display (13) is provided on the key (1 to 10) itself, particularly on or adjacent to its surface.
  4. An input device as claimed in any one of claims 1 to 3, characterized in that after a key has been activated and actuated, the randomly provided values of all the keys (1 to 10) are visible, preferably light up.
  5. An input device as claimed in any one of claims 1 to 4, characterized in that a microprocessor is connected to the random number generator and through the random number generator the start of the ascending series can be located each time at any key (1 to 10), and that setting out from this varying start the microprocessor assigns the ascending series of values or digits to the remaining keys.
  6. An input device as claimed in any one of claims 1 to 5, characterized in that the seven-segment display (13) takes the form of an LCD display.
  7. An input device as claimed in any one of claims 1 to 6, characterized by having a timer which switches off the display of the values, symbols or digits at the keys (1 to 10) after a predetermined time from their actuation has elapsed.
  8. An input device with a keyboard having ten keys, one key thereof displaying the digit zero, as claimed in any one of claims 1 to 7, characterized in that the zero key (10) remains unchanged and the ensuing series of numbers or digits of one to nine is variable with respect to its start at the remaining keys (1 to 9).
  9. An input device as claimed in any one of the preceding claims, characterized in that an additional start key is provided or the zero key (10) serves as the start key.
EP90119778A 1989-12-05 1990-10-16 Data input keyboard for coded locks or the like Expired - Lifetime EP0432409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940104 1989-12-05
DE3940104A DE3940104A1 (en) 1989-12-05 1989-12-05 INPUT DEVICE WITH KEYPAD FOR CODE LOCKS OR THE LIKE

Publications (2)

Publication Number Publication Date
EP0432409A1 EP0432409A1 (en) 1991-06-19
EP0432409B1 true EP0432409B1 (en) 1994-06-22

Family

ID=6394798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119778A Expired - Lifetime EP0432409B1 (en) 1989-12-05 1990-10-16 Data input keyboard for coded locks or the like

Country Status (2)

Country Link
EP (1) EP0432409B1 (en)
DE (2) DE3940104A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693809A1 (en) * 1992-07-15 1994-01-21 Lemasson Jean Claude Randomised coded electronic security access method - using pushbuttons associated with characters in random sequence controlled by microprocessor
GB2307999A (en) * 1995-12-06 1997-06-11 Richard Henry Wells Operation device
GB2313460A (en) * 1996-05-21 1997-11-26 Bosch Gmbh Robert Graphical password entry
EP1181643A1 (en) * 1999-02-12 2002-02-27 Arcot Systems, Inc. Method and apparatus for secure entry of access codes in a computer environment

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129202A1 (en) * 1991-09-03 1993-03-04 Hauni Elektronik Gmbh Protection circuit for personal identification number key=pad - uses number of keys to enter PIN value, with indicated values varying in pseudo-random manner
FR2711434B1 (en) * 1993-10-19 1995-12-22 Kime Electronic terminal with data entry keyboard.
GB201212878D0 (en) 2012-07-20 2012-09-05 Pike Justin Authentication method and system
GB201520741D0 (en) 2015-05-27 2016-01-06 Mypinpad Ltd And Licentia Group Ltd Authentication methods and systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950680A1 (en) * 1979-12-15 1981-06-19 Robert Bosch Gmbh, 7000 Stuttgart Keyboard for electronic code lock - has alphanumerical key coding, formed optically and variable at random prior to each input
WO1981002349A1 (en) * 1980-02-15 1981-08-20 Rehm Pty Ltd Improvements in security means
US4333090A (en) * 1980-05-05 1982-06-01 Hirsch Steven B Secure keyboard input terminal
DE3404976A1 (en) * 1984-02-11 1985-08-22 Blaupunkt-Werke Gmbh, 3200 Hildesheim Operating arrangement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693809A1 (en) * 1992-07-15 1994-01-21 Lemasson Jean Claude Randomised coded electronic security access method - using pushbuttons associated with characters in random sequence controlled by microprocessor
GB2307999A (en) * 1995-12-06 1997-06-11 Richard Henry Wells Operation device
GB2313460A (en) * 1996-05-21 1997-11-26 Bosch Gmbh Robert Graphical password entry
GB2313460B (en) * 1996-05-21 1998-07-08 Bosch Gmbh Robert Graphical password entry
EP1181643A1 (en) * 1999-02-12 2002-02-27 Arcot Systems, Inc. Method and apparatus for secure entry of access codes in a computer environment
EP1181643A4 (en) * 1999-02-12 2004-10-13 Arcot Systems Inc Method and apparatus for secure entry of access codes in a computer environment

Also Published As

Publication number Publication date
EP0432409A1 (en) 1991-06-19
DE3940104A1 (en) 1991-06-06
DE59006221D1 (en) 1994-07-28
DE3940104C2 (en) 1992-10-15

Similar Documents

Publication Publication Date Title
DE3804862C2 (en)
EP0432409B1 (en) Data input keyboard for coded locks or the like
DE3030123C2 (en) Control circuit for a vending machine
DE3811301C2 (en)
DE4331257A1 (en) Money-actuated (coin-operated) amusement machines
EP0079430B1 (en) Display device
DE2755736A1 (en) ROENTGEN DIAGNOSTIC APPARATUS WITH FUNCTION KEYS FOR ORGAN-PROGRAMMED SETTING OF THE ACQUISITION DATA
DE4114450A1 (en) Portable microcomputer system with front panel having display and keyboard - includes LCD panel providing keyboard functions that may be changed using computer plus fixed function keyboard section
DE2911643C2 (en) Electrically operated gaming machine
DE3806042C2 (en) Optoelectronic keyboard
DE3227269C2 (en) Control panel of a multiple function device
DE3134873C2 (en)
DE2826836C2 (en) Method and device for calling up and storing data or programs
DE3109775A1 (en) Electronic lotto gambling machine
DE68927830T2 (en) Calculator for math teaching aid in primary schools
DE923276C (en) Punch machine with letter keyboard
DE3622275A1 (en) Multifunction keyboard
DE3530575A1 (en) CONTROL CIRCUIT FOR A SELF-SALESMAN
DE1585365A1 (en) Control device for knitting or knitting machines
DE2808555C3 (en) Device for the electronic display and calculation of the game values when playing Skat
DE9300637U1 (en) Arrangement for generating light effects
DE850687C (en) Ballot or betting slip
CH644525A5 (en) Apparatus for evaluating the result of a shot on a bowling alley
DE8601831U1 (en) Pocket calculator type microprocessor betting device
DE2008373A1 (en) Keypad

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19910523

17Q First examination report despatched

Effective date: 19930812

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940628

REF Corresponds to:

Ref document number: 59006221

Country of ref document: DE

Date of ref document: 19940728

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950929

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19951006

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19951013

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19951030

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19951031

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19961016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19961031

Ref country code: CH

Effective date: 19961031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970501

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19961016

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970630

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051016