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WO2000011617A1 - Method and array for controlling an apparatus by means of fingerprint information - Google Patents

Method and array for controlling an apparatus by means of fingerprint information

Info

Publication number
WO2000011617A1
WO2000011617A1 PCT/DE1999/001960 DE9901960W WO0011617A1 WO 2000011617 A1 WO2000011617 A1 WO 2000011617A1 DE 9901960 W DE9901960 W DE 9901960W WO 0011617 A1 WO0011617 A1 WO 0011617A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
information
fingerprint
device
control
stored
Prior art date
Application number
PCT/DE1999/001960
Other languages
German (de)
French (fr)
Inventor
Bernhard Raaf
Manfred Bromba
Original Assignee
Siemens Aktiengesellschaft
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

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRICAL DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRICAL DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233Character input methods
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00006Acquiring or recognising fingerprints or palmprints
    • 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 entry or exit registers
    • G07C9/00126Access control not involving the use of a pass
    • G07C9/00134Access control not involving the use of a pass in combination with an identity-check
    • G07C9/00158Access control not involving the use of a pass in combination with an identity-check by means of a personal physical data

Abstract

The control of an apparatus is effected depending on fingerprint information detected by a sensor, said information being compared with stored fingerprint information pertaining to different fingers of a person, each of which is assigned a control procedure.

Description

description

Method and arrangement for controlling a device by means of fingerprint information

The invention relates to a method and an arrangement for controlling a device, particularly a mobile device, by means of fingerprint information, wherein the device is substantially controlled by the application of different fingerprints, or the entry of control information by means of different fingerprints.

For inputting control information into mobile devices several different methods, such as using the keyboard, soft keys, voice recognition, mouse, joystick or touch screen are so far known.

These known processes have either the disadvantage that they, their implementation much computational effort, and thus also requires energy expenditure, especially in mobile devices, to an undesirably complex implementation of an apparatus housing lead, or that they are unreliable, respectively.

In addition, a variety of devices is known, prior to loading usage, a user must be authenticated. Important examples are computers, especially portable computers, and telecommunications equipment, in particular mobile phones.

Some devices are generally protected against unauthorized user-wetting for example by a password; other devices only certain functions are protected (for example, by a so-called Personal Identification Number PIN). This includes the protection of access to certain data or services, even if they are not provided by the device, but by other devices on a computer or Kummunikationsnetz such as a mobile system. The most common type today entering a Authentifika- tion information or authentication information is input via a keyboard of the device. After entering the accuracy of the information entered, and thus the authority of the supplying user is checked by a test facility network in the device or in a computer or communications. In mobile phones according to the GSM (Global System for Mobile Communication) standard, this is done by a data processing device on the so-called SIM (scriber sub Identifying Module) -Card of the device checks whether the PIN entered on the data stored on the SIM Card Information fits. If this is the case, the SIM card enables the mobile phone to use.

For some time, technologies are available that allow other forms of authentication of a user. These technologies are based on the detection of user-specific biometric characteristics by special sensors. A major example of this are sensors to detect the fingerprint.

Typically, detected by the sensors characteristics in a data processing device of the device or a communication network with the known features of an authorized user are compared and given sufficient correspondence of the access to the desired service, the required data or the selected device function is enabled.

Although these devices have already for user authentication input means, namely, a corresponding sensor, they are nevertheless provided by means of which can enter a user-zer control information or input information with a keyboard or a corresponding input device. The invention is therefore based on the object to provide a method and an arrangement by which it is possible to enter in a reliable and easy way to control information to control a device without requiring a lot of space on the outside of a device housing, or to increase the device weight significantly ,

This object is solved by the features of the independent claims. Further developments are evident from the dependent claims.

Thus, the invention is based on the idea to determine fingerprint information of a finger applied to compare these with different stored fingerprint information, and to control a function of the comparison result of the device.

It is thereby achieved that like different control information can be entered by means of a relatively small in the area sensor according to the different fingers. So appropriate device or the associated input devices can be made small and light, and at the same time be very reliable performed the input of the control information.

In a further development of the invention that is also a user identification or a Benutzerauthentifizie- tion is provided by means of a fingerprint recognition.

So it is possible to protect with a fingerprint sensor, the device from unauthorized access and to control the device without additional hardware in the event of an authorized device access.

Further, a development is provided in which respective different numbers can be entered into the device by applying different fingers. This ensures that a device can be operated reliably by the use of a sensor, instead of a numeric keypad, but it can be kept small in its dimensions and its weight.

A further embodiment of the invention provides that the application of a finger triggers different control procedures in the device in different operating states.

So it is possible that a large number of control procedures can be triggered in the device with a limited number of different finger.

Especially in communication terminals, by means of different finger on fast and reliable way,

done entering selection information or the triggering of the associated signaling procedures are triggered.

The invention is approximately examples described in more detail below with reference to preferred execution to the explanation serve the figures listed below:

1 shows a flowchart of a method and the corresponding array elements for controlling an overall rätes by means of fingerprint information,

Figure 2 shows possible assignments of fingerprint information on control procedures,

3 shows a block diagram of a communication terminal.

1 shows a flowchart of a method for controlling a device by means of different fingerprint information and corresponding arrangement of elements for carrying out such a method.

First, a fingerprint sensor SEN detects the line pattern of the applied f fingertip by the sensor cells produce therefrom the changes that take cause on the finger surface, the lines and charges the wells of the electric field, and its electric image.

The detection can rest loading on a capacitive measuring principle, one in which each pixel represents a capacitor and the skin of the finger acts as a third capacitor plate. The Rückkoppelungskapazitä- th resulting by the ridges and valleys in the individual sensor elements provide analog Become that provide a three-dimensional image of the impression. Moreover, since the conductivity of the skin affects the signal, the sensor is not to deceive with a Wachsatrappe.

After an analog / digital conversion of these analogue values ​​advertising to the corresponding digital signals to a processing device VE, and in particular a digital signal processor transmits.

In the digital signal processor VE by appropriate image processing algorithms of the fingerprint values ​​f distinctive features fe calculated fe = erm (f). These determined distinctive characteristics fe be in a controller STE, such as a micro-controller, compared with corresponding stored distinctive features fl ... fn, which are stored in memory devices SPE:

(F4, stp_4) = cf (fe, fi, ... fn); depending on the result of comparison of stored fingerprint information is then f4 which these stored fingerprint information triggered by the detected fingerprint information fe f4 associated control procedure in the present STP4 similarity.

The stored fingerprint information corresponds to either different fingers of a person, or different fingers of several persons. For example, either be stored for a person that correspond to the ten fingers fingerprint information, or in addition for each additional person the appropriate corresponding additional ten fingers further fingerprint information to be stored.

For a reliable test with respect to their similarity the captured by the sensor unit SEN and the stored fingerprint information can be placed into the form of a so-called feature vector. This assumption is not limited in practice because the sensor data always as an ordered n-tuple of n measurement data (feature vector) can be represented. The feature vectors form an n-dimensional space. This is a set of pattern vectors (codebook vectors) exist, and it is defined, a distance (similarity fingerprint characteristics).

there is a cell in this space, which is defined by the fact, that for each feature vector in a cell that the pattern vector of this cell is the nearest pattern vector within the meaning of this distance measure for each pattern vector.

Each pattern vector is assigned to a control procedure for controlling the device or an appropriate information for initiating such a control procedure. The investigation of the nearest pattern vector f4 into a feature vector fe, which corresponds to the sensor data acquired, thus leads to the triggering of a corresponding control procedure STP4, which can be performed by the above-mentioned first or second control means STE. If the feature vector is not located in the cell of a pattern vector, no control procedure is triggered, since the similarity between the determined and stored fingerprint information is too low, that is, the similarity does not exceed a predetermined threshold.

The error rate of this process can be optimized if it is ensured that the associated with the fingerprint features feature vectors are pattern vectors. This can be achieved by the system is adapted in an initialization phase to the fingerprint features (codebook adaptation).

The vector is not the only method that can be used in connection with the invention. The skilled worker is familiar with other methods, which therefore need not be discussed here.

The storage of fingerprint information, the processing of fingerprint information, the comparison of the determined and stored fingerprint information and / or the triggering of control procedures may be performed either completely or at least partially in an arrangement for controlling a device. This arrangement for the control may be integrated in the device or be realized separately from the device and be connected only by means of transmission devices with the device. It is also possible that parts of the method steps or the above-mentioned respective elements Hardwareele- be carried out in the central equipment of a communication network or are arranged.

2 shows different variants for the assignment of finger print information are shown schematically to control procedures. They refer to a device that can be placed in different operating conditions. The different operating states can be distinguished in the fact that different depending on the operating mode or more or less elements of the device with current comparable ensures are different and more or less functions of the device are executable or a more or less restricted access to data approved or functions. Here, the fingerprint associated with this Steuerpro- zedur can lead to a change of the operating state of the device by applying a finger to the sensor element SEN. The following are the three described in Figure 2 from left to right exemplary processes shown in more detail:

- The device is initially in the off state in which only the elements are turned on for fingerprint recognition. Corresponding to the detected fingerprint information fe the stored fingerprint information fl, the device is turned on stpl means of the control procedure, and for a particular person personl freigeschal- tet. That means this person will personl her respective hits allowed on the device in terms of user authentication or user identification.

In the next step again the fingerprint fl is detected, the apparatus is switched ProFill in the device profile by means of control procedure stpll3. This may mean that ProFill be set, for example, in a communications terminal, the ring tone volume, the admissibility of incoming calls, the ringer melody, the display presentation or other menu options in accordance with this stored device profile.

Is now once again created in this device profile ProFill finger fl, the stored number of a desired destination, such as the office of the user input, and corresponding Signalisierungsprozedu- ren to establish the connection is initiated automatically: waehle_buero.

- If it is determined in the off state, that the fingerprint fe detected corresponds to the stored fingerprint f68, the device is switched on and accessible for a person person2. Is recognized as next of fingerprint F69, the device is switched to the device profile profile3 this person person2. Now, if the fingerprint f30 found, a connection is automatically initiated building to an emergency call center. - is recognized f27 when switched device status of the fingerprint, the device is first turned on and immediately initiated a connection to an emergency call center. Is recognized in the on state of the fingers f24, the device is switched to a generic device profile ProFill and entered in the case of applying the finger f21 the number "0" on the device and possibly shown on the display.

These examples countless Toggle particular variants of the assignment of control procedures to fingerprint information can be realized for a professional.

Such an assignment can be stored at the initial use of the device by the user successively selects all options of the menu structure for controlling the device, and confirms each menu item with the application of the desired by him finger to the sensor.

In combination with an existing in the device or in the arrangement for controlling the device SIM (Subscriber Identifying Module) -Card can serve not only to the user identification, but also for user authentication, the fingerprint sensor.

Figure 3 shows a communications terminal KE, comprising an operating unit MMI, a controller STE, a processing device VE, a power supply device SVE, a user authentication module SIM, a receiving device EE, a transmitting device SE and a sensor device SEN.

The operating unit MMI consists of a speaker element, a microphone element, a display for displaying menu items, numbers or other for a Kommunikationsab- run relevant information and possibly a keyboard for entering letters and numbers and to select menu items. The controller STE consists essentially of a program-controlled microcontroller and the processing means VE from a digital signal processor, both of which can read and write access to memory blocks SPE. The micro-controller controls and monitors all the essential elements and functions of the communications terminal KE, and controls the communication and Signalisierungsab- run. For this purpose in the form of program data stored control procedures are read Traditional Tyrolean from the memory components in the microcontrollers and executed there. In particular, the displacement of the communications terminal KE in defined operating states, the switching on and off certain hardware elements and the user identification to be controlled by the controller STE.

In the volatile or non-volatile memory modules SPE are the program data that are needed for controlling the communications terminal KE, and the communication sequence, in particular the signaling procedures, equipment data, user-entered information, during the processing of signals generated information and reference data from fingerprint features, that fingerprint information of authorized users stored.

In one embodiment of the invention, these reference data or at least parts of the reference data on the user authentication module SIM are stored.

If it is in the communication terminal KE is a Mo- biltelefon, the user authentication can be replaced using a secret code by comparing the fingerprint information obtained with stored fingerprint information. After a transmission of authentication data corresponding to the central devices of the stems Mobilfunksy- the mobile telephone is logged into the mobile radio system.

Claims

Patentanspr├╝che
1. A method for controlling a Gerätes by means of fingerprint information, - in which fingerprint information (fe) of a finger are determined,
- different according to different fingers of a person fingerprint information (f1, f2 ... fn) are stored, each of which a control procedure (stpl; STP2; ... STPN) is assigned,
- the determined fingerprint information (fe) with different stored fingerprint information
(F1; f2 ... fn) are compared,
- at a predetermined threshold überschreitenden Ähnlichkeit the fingerprint information determined (fe) that these stored fingerprint information (f4) associated with the control procedure is ausgelöst with stored fingerprint information (f4).
2. The method of claim 1, wherein the Gerät can be placed in different Betriebszustände, wherein the stored fingerprint information (f1, f2 ... fn) a control procedure (stpl; STP2; ... STPN) for changing the is assigned to the operating state.
3. The method according to any preceding Anspr├╝che, wherein the stored fingerprint information (fl) a control procedure (stpl) is assigned to a user identification Durchf├╝hrung.
4. The method according to any preceding Anspr├╝che, wherein the stored fingerprint information (f1, f2 ... fn) control procedures (stpl; STP2; ... STPN) are assigned to correspond to their Ausl├╢sungen entering digits ,
5. Method according to one in which the Gerät can be placed in different Betriebszustände preceding Ansprüche, wherein the stored fingerprint information (f1, f2 ... fn) at different Betriebszuständen different control procedures (stpl; STP2; ... STPN) are assigned.
6. The method according to any preceding Ansprüche, which is a Kommunikationsendgerät wherein Gerät, wherein the stored fingerprint information (f1, f2 ... fn) control procedures (stpl; STP2; ... STPN) are assigned to correspond to their Auslösungen the input of dialing information.
7. The method according to any preceding Ansprüche, which is a Kommunikationsendgerät wherein Gerät, wherein the stored fingerprint information (f1, f2 ... fn) control procedures (stpl; STP2; ... STPN) are assigned whose Auslösungen auslösen signaling procedures.
8. An arrangement for controlling a Gerätes by means of fingerprint information, comprising a) means (SEN) (for the detection of fingerprint information fe), b) means (SPE) for storing different finger of a person corresponding to different fingerprint information (f1, f2 ... fn ), each of which a control procedure (stpl; STP2; STPN ... is associated), c) means (STE) for comparing the fingerprint information detected (fe) with different stored fingerprint information (f1, f2 ... fn), and d) means (STE) for Auslösung the control procedure (STP4), which is associated with the stored fingerprint information (f4) whose Ähnlichkeit (with the detected fingerprint information fe) überschreitet a predetermined threshold.
9. An arrangement according to claim 8, comprising
- means (STE) for the displacement of Gerätes in different Betriebszustände,
- having means (SPE) for storing a control procedure (stpl) for changing the operating state.
10. An arrangement according to one of Anspr├╝che 8 to 9, having means (SPE) for storing a control procedure (stp╬┤) for Durchf├╝hrung a user identification.
11. An arrangement according to one of Anspr├╝che 8 to 10, having means (SPE) for storing control procedures
(Stpl; STP2; ... STPN) whose Ausl├╢sungen corresponding to the input of digits.
12. An arrangement according to one of Anspr├╝che 8 to 11, having means (SPE) for storing control procedures
(Stpl; STP2; ... STPN) correspond to their Ausl├╢sungen the input of dialing information.
13. An arrangement according to one of Anspr├╝che 8 to 12, having means (SPE) for storing control procedures
(Stpl; STP2; ... STPN) ausl├╢sen duren Signalisierungsproze- whose Ausl├╢sungen.
14, mobile telephone with an arrangement according to one of Anspr├╝che 8 to 13.
PCT/DE1999/001960 1998-08-19 1999-07-01 Method and array for controlling an apparatus by means of fingerprint information WO2000011617A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19837642.1 1998-08-19
DE1998137642 DE19837642C1 (en) 1998-08-19 1998-08-19 Control of mobile unit, mobile telephone by fingerprint recognition

Publications (1)

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WO2000011617A1 true true WO2000011617A1 (en) 2000-03-02

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