# US 2019/0171808 A1 · Electronic apparatus and unlocking method thereof

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- Number: US 2019/0171808 A1
- Document ID: US20190171808A1
- Status: Published application
- Kind: A1
- Application number: 15/920,477
- Filed: 2018-03-14
- Published: 2019-06-06
- Earliest claimed: 2017-12-05
- Assignees: Wistron Corporation
- Applicants: Wistron Corporation
- Inventors: Mang-Chia Ho; Jia-Cyuan Fan; Chi-Hsiang Yeh
- Web page: https://patentgrep.com/patent/US20190171808A1

## CPC

- G06F 21/45: Structures or tools for the administration of authentication
- G06F 16/22: Indexing; Data structures therefor; Storage structures
- G06F 21/31: User authentication
- G06F 2221/2105: Dual mode as a secondary aspect
- G06F 2221/2147: Locking files
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

An electronic apparatus and an unlocking method thereof are provided. The electronic apparatus receives an input password. When the input password matches a valid password, the electronic apparatus is unlocked. When the input password does not match the valid password, a protection system is activated. The protection system collects usage information and posts a warning message to a social networking site based on the usage information.

## Claims

### Claim 1

An unlocking method of an electronic apparatus comprising:
receiving an input password by the electronic apparatus;
determining whether the input password matches a valid password; and
when the input password does not match the valid password, comprising:
activating a protection system;
collecting a usage information via the protection system; and
posting a warning message based on the usage information to a social networking site.

### Claim 2 (depends on 1)

The unlocking method of the electronic apparatus according to claim 1, wherein when the input password does not match the valid password, further comprising:
determining whether the input password matches one of a plurality of invalid passwords saved in an invalid password database;
saving the input password to the invalid password database and activating the protection system when determining that the input password does not match any one of the invalid passwords saved in the invalid password database; and
activating the protection system when determining that the input password matches one of the invalid passwords saved in the invalid password database.

### Claim 3 (depends on 2)

The unlocking method of the electronic apparatus according to claim 2, wherein the warning message comprises a first warning message and a second warning message, step of collecting the usage message via the protection system comprises:
capturing an image; and
comparing the image with a plurality of avatar information, wherein the avatar information is acquired from the social networking site;
wherein step of posting the warning message based on the usage information to the social networking site comprises:
posting the first warning message marked with a user name corresponding to one of the avatar information and the image to the social networking site when the image matches one of the avatar information; and
posting the second warning message without marking any user name and the image to the social networking site when the image does not match any one of the avatar information.

### Claim 4 (depends on 3)

The unlocking method of the electronic apparatus according to claim 3, wherein each of the invalid passwords in the invalid password database belongs to first type or second type, after step of capturing the image, further comprising:
posting the second warning message and the image to the social networking site when one of the invalid passwords matching the input password belongs to the first type; and
comparing the image with the plurality of the avatar information when one of the invalid passwords matching the input password belongs to the second type.

### Claim 5 (depends on 1)

The unlocking method of the electronic apparatus according to claim 1, wherein after activating the protection system, further comprising:
activating a global positioning system to acquire a location information of the electronic apparatus;
wherein when the warning message is posted to the social networking site, further comprising: posting together with the location information to the social networking site.

### Claim 6 (depends on 3)

The unlocking method of the electronic apparatus according to claim 3, further comprising:
connecting to the social networking site and acquiring a user list authorized by an account set by the electronic apparatus, wherein the user list comprises a plurality of user accounts; and
acquiring the plurality of the avatar information corresponding to the user accounts; from the user list.

### Claim 7 (depends on 2)

The unlocking method of the electronic apparatus according to claim 2, wherein step of saving the input password to the invalid password database when determining that the input password does not match any one of the invalid passwords saved in the invalid password database, further comprising:
setting a corresponding weight of the input password as 0;
wherein when determining that the input password matches one of the invalid passwords saved in the invalid password database, further comprising:
adding up the weight corresponding to one of the invalid passwords matching the input password.

### Claim 8 (depends on 2)

The unlocking method of the electronic apparatus according to claim 2, wherein step of saving the input password to the invalid password database when determining that the input password does not match any one of the invalid passwords saved in the invalid password database, further comprising:
setting a corresponding weight of the input password as a negative value;
wherein when determining that the input password matches one of one the invalid passwords saved in the invalid password database, further comprising:
adding up the weight corresponding to one of the invalid passwords matching the input password, and then determining whether the weight is greater than or equal to 0; and
activating the protection system when the weight corresponding to one of the invalid passwords is greater than or equal to 0.

### Claim 9 (depends on 2)

The unlocking method of the electronic apparatus according to claim 2, wherein after activating the protection system, further comprising:
entering a sandbox unlock screen via the protection system, wherein the sandbox unlock screen comprises a plurality of blocked areas; and
setting the input password not matching the valid password as an unlock sandbox password for clearing the blocked areas.

### Claim 10 (depends on 9)

The unlocking method of the electronic apparatus according to claim 9, wherein each of the invalid passwords in the invalid password database has a corresponding weight and the number of the blocked areas increases or decreases along with the corresponding weight of one of the invalid passwords matching the input password.

### Claim 11 (depends on 1)

The unlocking method of the electronic apparatus according to claim 1, wherein when the input password does not match the valid password, further comprising:
activating a state recovery unit;
monitoring whether a shutdown command or a hibernate command is received via the state recovery unit; and
recovering a device power state and activating the protection system after the shutdown command or the hibernate command is received.

### Claim 12

An electronic apparatus, comprising:
a storage device, comprising an unlock system and a protection system; and
a processor, coupled to the storage device, driving the unlock system and the protection system;
wherein when the electronic apparatus receives an input password, the unlock system determines whether the input password matches a valid password; when the input password matches the valid password, the unlock system unlocks the electronic apparatus; when the input password does not match the valid password, the unlock system activates the protection system, and collects a usage information via the protection system and posts a warning message to a social networking site via the protection system based on the usage information.

### Claim 13 (depends on 12)

The electronic apparatus according to claim 12, wherein
the unlock system determines whether the input password matches one of a plurality of invalid passwords saved in an invalid password database; when determining that the input password does not match one of the invalid passwords saved in the invalid password database, the unlock system saves the input password to the invalid password database and activates the protection system; when determining that the input password matches one of the invalid passwords saved in the invalid password database, the unlock system activates the protection system.

### Claim 14 (depends on 13)

The electronic apparatus according to claim 13, wherein the warning message comprises a first warning message and a second warning message, the electronic apparatus further comprises an image-taking apparatus, and the storage device further comprises a notification system;
wherein after activating the protection system, the protection system activates the image-taking apparatus to capture an image and compares the image with a plurality of avatar information, which is acquired from the social networking site;
the protection system posts the first warning message marked with a user name corresponding to one of the avatar information and the image to the social networking site via the notification system when the image matches one of the avatar information;
the protection system posts the second warning message without marking any user name and the image to the social networking site via the notification system when the image does not match any one of the avatar information.

### Claim 15 (depends on 14)

The electronic apparatus according to claim 14, wherein each of the invalid passwords in the invalid password database belongs to first type or second type,
the protection system posts the second warning message and the image to the social networking site via the notification system when one of the invalid passwords matching the input password belongs to the first type;
the protection system compares the image with the avatar information when the one of the invalid passwords matching the input password belongs to the second type.

### Claim 16 (depends on 12)

The electronic apparatus according to claim 12, further comprising:
a global positioning system, acquiring a location information of the electronic apparatus after activating the protection system;
the protection system posts the warning message and the location information together to the social networking site via a notification system.

### Claim 17 (depends on 14)

The electronic apparatus according to claim 14, wherein the protection system connects to the social networking site via a collection unit, and acquires a user list authorized by an account set by the electronic apparatus, wherein the user list comprises a plurality of user accounts, and the collection unit acquires the avatar information corresponding to the user accounts from the user list.

### Claim 18 (depends on 13)

The electronic apparatus according to claim 13, wherein the unlock system saves the input password to the invalid password database when determining that the input password does not match any one of the invalid passwords saved in the invalid password database and then sets a corresponding weight of input password as 0;
wherein when determining that the input password matches one of the invalid passwords saved in the invalid password database, the protection system adds up the weight corresponding to one of the invalid passwords matching the input password.

### Claim 19 (depends on 13)

The electronic apparatus according to claim 13, wherein the unlock system saves the input password to the invalid password database when determining that the input password does not match any one of the invalid passwords saved in the invalid password database and then sets a corresponding weight of the input password as a negative value;
when determining that the input password matches one of the invalid passwords saved in the invalid password database, adds up the weight corresponding to one of the invalid passwords matching the input password and then determining the weight is greater than or equal to 0; the unlock system activates the protection system when the weight corresponding to one of the invalid passwords is greater than or equal to 0.

### Claim 20 (depends on 13)

The electronic apparatus according to claim 13, wherein the storage device further comprises:
a sandbox system, providing a sandbox unlock screen, wherein the sandbox unlock screen comprises a plurality of blocked areas, and setting the input password not matching the valid password by the sandbox system as an unlock password for clearing the blocked areas,
wherein the sandbox system is activated via the protection system to enter the sandbox unlock screen.

### Claim 21 (depends on 20)

The electronic apparatus according to claim 20, wherein each of the invalid passwords saved in the invalid password database has a corresponding weight, the sandbox system increases or decreases the number of the blocked areas based on the corresponding weight of one of the invalid passwords matching the input password.

### Claim 22 (depends on 12)

The electronic apparatus according to claim 12, wherein when the input password does not match the valid password, the unlock system activates a state recovery unit, monitors whether a shutdown command or a hibernate command is received via the state recovery unit, recovers a device power state and activating the protection system after the shutdown command or the hibernate command is received.