Method for implementing a navigation key function in a mobile communication terminal based on fingerprint recognition
First Claim
1. A method for implementing a navigation key function in a mobile communication terminal using fingerprint-recognition, the method comprising the steps of:
- including, in the mobile communication terminal, a fingerprint-recognition sensor divided into a plurality of image detection blocks;
recognizing a fingerprint over at least one of the plurality of image detection blocks;
obtaining a directional characteristic corresponding to a direction indicated by the at least one of the plurality of image detection blocks that has recognized the fingerprint; and
determining a directional value based on the obtained directional characteristic to perform a corresponding directional process.
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Abstract
A method for implementing a navigation key function in a mobile communication terminal using fingerprint-recognition. The mobile communication terminal includes a fingerprint-recognition sensor divided into a plurality of image detection blocks. The method comprises recognizing a fingerprint over at least one of the plurality of image detection blocks, obtaining a directional characteristic corresponding to a direction indicated by the at least one of the plurality of image detection blocks that has recognized the fingerprint, and then determining a directional value based on the obtained directional characteristic to perform a corresponding directional process.
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Citations
13 Claims
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1. A method for implementing a navigation key function in a mobile communication terminal using fingerprint-recognition, the method comprising the steps of:
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including, in the mobile communication terminal, a fingerprint-recognition sensor divided into a plurality of image detection blocks; recognizing a fingerprint over at least one of the plurality of image detection blocks; obtaining a directional characteristic corresponding to a direction indicated by the at least one of the plurality of image detection blocks that has recognized the fingerprint; and determining a directional value based on the obtained directional characteristic to perform a corresponding directional process. - View Dependent Claims (2, 3)
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4. A method for implementing a navigation key function in a mobile communication terminal based on a fingerprint-recognition, the method comprising the steps of:
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including, in the mobile communication terminal, a fingerprint-recognition sensor; authenticating a user by processing an image of a fingerprint input by the user, when the operation of the fingerprint-recognition sensor is in a user authentication mode; detecting subparts of the input fingerprint image when the operation of the fingerprint-recognition sensor is not in the user authentication mode but in a navigation key input mode; after dividing the processed image into subparts of predetermined size, determining a direction toward which the fingerprint image is biased with respect to the entire fingerprint-detection region, based on the processed image for each direction; and outputting a signal of the determined direction as a selected navigation direction and performing a control corresponding to the output signal. - View Dependent Claims (5, 6)
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7. A method for implementing a navigation key function in a mobile communication terminal based on a fingerprint-recognition, the mobile communication terminal including a fingerprint-recognition sensor, the method comprising:
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an initial check step including the steps of (1) releasing a lock of the mobile communication terminal in response to input of a fingerprint or secret number, provided that the mobile communication terminal is locked, and (2) in response to a key or fingerprint input, checking whether the operation of the mobile communication terminal is in a key-input setting mode, provided that the terminal is unlocked or the lock is released; a registration step including (a) an initial registration step of performing an initial registration by inputting an identical fingerprint one or more times;
(b) a registration-fingerprint input step of inputting a registered fingerprint;
(c) an additional fingerprint registration step of additionally registering a fingerprint; and
(d) a fingerprint deletion step of deleting a registered fingerprint, provided that the operation of the terminal is in a fingerprint registration mode; anda directional process step of (i) checking whether the input fingerprint is identical with a registered one when the operation of the terminal is in a fingerprint authentication mode, (ii) obtaining a directional characteristic of subparts of the input fingerprint when the operation of the terminal is not in the fingerprint authentication mode, and (iii) determining a fingerprint input navigation direction based on the obtained directional characteristic. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification