UNLOCK METHOD USING NATURAL LANGUAGE PROCESSING AND TERMINAL FOR PERFORMING SAME

• US 20150051913A1
• Filed: 03/16/2012
• Published: 02/19/2015
• Est. Priority Date: 03/16/2012
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Choi, Seheon
• Application Number:
  US14/384,068
• Publication Number:
  US 20150051913A1
• Time in Patent Office: Days
• US Class Current: 704/273
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 2015/088 Word spotting
• CPC Class Codes: G10L 2015/223 Execution procedure of a spoken command
• CPC Class Codes: H04M 1/67 by electronic means
• CPC Class Codes: H04M 2250/74 with voice recognition means voice activated dialling H04M1/271; voice recognition algorithms G10L15/00

Abstract

The present description relates to an unlock method and to a terminal for performing same, the unlock method being performed by a terminal that provides a lock function, the unlock method comprising: a step of displaying a voice input screen on a lock screen of the terminal; a step of taking, as an input, voice from a user; a step of performing natural language processing on the voice to acquire an object constituting the voice; a step of determining whether or not the object contains a passphrase for unlocking; and a step of unlocking the terminal or maintaining the terminal in the locked state depending on the result of the determination of whether the object contains the passphrase.

Claims

1. An unlock implementation method of a terminal providing a lock function, the method comprising:

displaying a voice input screen on a lock screen of the terminal;

receiving voice from a user;

processing the voice in a natural language processing scheme to acquire an object constituting the voice;

determining whether or not the object contains a passphrase for releasing a lock state; and

releasing or maintaining the lock state of the terminal according to the determination result on whether or not the object contains the passphrase.

2. The method of claim 1, wherein the object constituting the voice is at least one of a sentence, a word and a vocabulary.

3. The method of claim 1, wherein the passphrase is a sentence or word which is the same as or similar to any one of one or more passphrases constituting a passphrase set,

wherein the passphrase set comprises at least one passphrase which is preset to authenticate a user who is allowed to release a lock state.

4. The method of claim 1, wherein said releasing or maintaining a lock state comprises:

determining whether or not the object contains an execution command of a function provided by the terminal when the object contains the passphrase; and

releasing the lock state and performing the function when containing the execution command, and releasing the lock state when not containing the execution command.

5. The method of claim 1, wherein said releasing or maintaining the lock state comprises:

determining whether or not the object contains an execution command of a function that does not require the release of the lock state when the object does not contain the passphrase; and

performing the function without releasing the lock state based on a result of the determination on whether or not containing the execution command.

6. The method of claim 1, wherein said displaying a voice input screen comprises:

sensing whether or not a theft of the terminal has occurred; and

setting a theft status of the terminal to a theft assumption state based on the sensing result, and displaying the voice input screen on the lock screen.

7. The method of claim 6, wherein said releasing or maintaining the lock state of the terminal comprises:

releasing the lock state and setting the theft status to a theft release state when the object contains the passphrase, and setting the theft status to a theft confirmation state without releasing the lock state when the object does not contain the passphrase.

8. The method of claim 7, further comprising:

performing at least one of the operations of alarm warning, transmitting a current location of the terminal to another terminal, deleting specific information stored in the terminal, and theft report when the object does not contain the passphrase.

9. A terminal providing a lock function, the terminal comprising:

a display unit configured to display a voice input screen on a lock screen of the terminal;

an input unit configured to receive voice from a user; and

a controller configured to process the voice in a natural language processing scheme to acquire an object constituting the voice,

wherein the controller determines whether or not the object contains a passphrase for releasing a lock state, and releases or maintains the lock state of the terminal according to the determination result on whether or not the object contains the passphrase.

10. The terminal of claim 9, wherein the object constituting the voice is at least one of a sentence, a word and a vocabulary.

11. The terminal of claim 9, further comprising:

a storage unit configured to store a passphrase set comprising at least one passphrase which is preset to authenticate a user who is allowed to release a lock state,

wherein the passphrase is a sentence or word which is the same as or similar to any one of one or more passphrases constituting the passphrase set.

12. The terminal of claim 9, wherein the controller determines whether or not the object contains an execution command of a function provided by the terminal when the object contains the passphrase, and releases a lock state and performs the function when containing the execution command, and releases the lock state when not containing the execution command.

13. The terminal of claim 9, wherein the controller determines whether or not the object contains an execution command of a function that does not require the release of the lock state when the object does not contain the passphrase, and performs the function without releasing the lock state based on a result of the determination on whether or not containing the execution command.

14. The terminal of claim 9, further comprising:

a senor unit configured to sense whether or not a theft of the terminal has occurred,

wherein the controller sets a theft status of the terminal to a theft assumption state based on the sensing result of the sensor unit, and controls the display unit to display the voice input screen on the lock screen.

15. The terminal of claim 14, wherein the controller releases a lock state and sets the theft status to a theft release state when the object contains the passphrase, and sets the theft status to a theft confirmation state without releasing the lock state when the object does not contain the passphrase.

16. The terminal of claim 15, wherein the controller performs at least one of the operations of alarm warning, transmitting a current location of the terminal to another terminal, deleting specific information stored in the terminal, and theft report when the object does not contain the passphrase.