Reverse battery protection device and operating method thereof

Patent metadata

Field	Value
Publication number	US-9772605-B2
Application number	US-201615208491-A
Country	US
Kind code	B2
Filing date	Jul 12, 2016
Priority date	Oct 8, 2014
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

A wearable device includes: a touch screen; an acceleration sensor configured to generate an acceleration signal; an optical sensor using a light source and configured to generate a touch interrupt signal; and a control unit configured to detect a wearing state of the wearable device, the wearing state of the wearable device including a not-wearing state for the wearable device, a wrist wearing state, and a hand gripping state on the basis of the acceleration signal and the touch interrupt signal, and to execute a function corresponding to the wearing state of the wearable device.

First claim

What is claimed is:

1. A wearable device comprising:
a main body;
a display located at a front side of the main body and configured to display information;
a heartbeat sensor located below the display and located at a rear side of the main body, wherein the heartbeat sensor comprises a light emitting unit and a light receiving unit, and wherein the heartbeat sensor is configured to detect a heartbeat using the light emitting unit and the light receiving unit; and
a controller operably coupled with the display and the heartbeat sensor, wherein the controller is configured to:
identify a wearing state of the wearable device and a non-wearing state of the wearable device using the light emitting unit and the light receiving unit;
display, on the display, a lock screen representing a lock state of the wearable device after identifying that the wearable device is in the identified wearing state;
change the lock state of the wearable device to a lock released state of the wearable device in response to receiving of a lock release command after identifying that the wearable device is in the wearing state;
continue the lock released state while the wearable device is in the wearing state;
change the lock state to the lock released state in response to receiving of the lock release command after identifying that the wearable device is in the non-wearing state; and
change the lock released state to the lock state after a predetermined time elapses while the wearable device is in the non-wearing state,
wherein the lock screen is a screen for limiting an access of an application in the wearable device, and
a lock released screen is a screen for allowing the access of the application in the wearable device.

2. The wearable device according to claim 1 , wherein the controller is further configured to:
display, on the display, the lock released screen representing the lock released state in further response to the receiving of the lock release command.

3. The wearable device according to claim 2 , wherein the lock released state continues when the lock released screen is changed to a black screen representing that power is not supplied to the display.

4. The wearable device according to claim 3 , wherein the lock released screen is changed to the black screen after a predetermined time.

5. The wearable device according to claim 2 , wherein the lock released screen includes an analog watch screen, a digital watch screen, or a home screen including a plurality of icons.

6. The wearable device according to claim 2 , wherein the controller is further configured to:
change the lock released screen including a watch screen to a home screen including a plurality of icons when a tilt gesture is received while in the wearing state.

7. The wearable device according to claim 2 , wherein the lock screen and the lock released screen include a digital watch screen.

8. The wearable device according to claim 2 , wherein the controller is further configured to:
display the lock released screen that includes a watch screen when the lock state is released while in the wearing state.

9. The wearable device according to claim 8 , wherein the watch screen disappears and a home screen is displayed when a command for displaying the home screen is input.

10. The wearable device according to claim 1 , wherein the wearing state is a state that the heartbeat is detected and the non-wearing state is a state that the heartbeat is not detected.

11. The wearable device according to claim 1 , wherein the controller is further configured to:
change the lock released state to the lock state, and display, on the display, the lock screen, when the wearing state changes to the non-wearing state.

12. The wearable device according to claim 11 , wherein the controller is further configured to:
wherein the lock screen is displayed if a screen of the display is turned on.

13. The wearable device according to claim 1 , wherein the lock release command is received at a code input screen while in the lock state, the code input screen including a plurality of areas which respectively correspond to a number.

14. The wearable device according to claim 13 , wherein the controller is further configured to:
change the lock state to the lock released state when a predetermined code is received at the code input screen.

15. The wearable device according to claim 1 , wherein the controller is further configured to:
display a message on the lock released screen when the lock state of the wearable device is released while in the wearing state.

16. The wearable device according to claim 1 , wherein the light emitting unit is configured to emit a light, and the light receiving unit is configured to receive the light, and wherein the light emitting unit includes at least one of an infrared light emitting element, a red light emitting element, or a green light emitting element.

17. The wearable device according to claim 16 , wherein the light emitting unit is configured to detect the heartbeat based on an amount of the light received from the light receiving unit.

18. The wearable device according to claim 1 , wherein the non-wearing state or the wearing state is detected by using an infrared light emitting element of the lighting emitting unit.

19. The wearable device according to claim 1 , wherein if the lock state of the wearable device is released while in the wearing state, the lock released state of the wearable device is continued while the wearing state is identified using the light emitting unit and the light receiving unit.

20. A wearable device comprising:
a main body;
a display located at a front side of the main body and configured to display information;
an acceleration sensor located in the main body;
a heartbeat sensor located below the display and located at a rear side of the main body, wherein the heartbeat sensor comprises a light emitting unit and a light receiving unit; and
a controller operably coupled with the display, the acceleration sensor and the heartbeat sensor, the controller configured to:
identify a wearing state of the wearable device and a non-wearing state of the wearable device using at least one of the acceleration sensor, or the light emitting unit and the light receiving unit;
display, on the display, a lock screen representing a lock state of the wearable device after identifying that the wearable device is in the identified wearing state;
change the lock state of the wearable device to a lock released state of the wearable device in response to receiving of a lock release command after identifying that the wearable device is in the wearing state;
continue the lock released state while the wearable device is in the wearing state;
change the lock state to the lock released state in response to receiving of the lock release command after identifying that the wearable device is in the non-wearing state; and
change the lock released state to the lock state after a predetermined time elapses while the wearable device is in the non-wearing state using at least one of the acceleration sensor, or the light emitting unit and the light receiving unit,
wherein the lock screen is a screen for limiting an access of an application in the wearable device, and
a lock released screen is a screen for allowing the access of the application in the wearable device.

21. The wearable device according to claim 20 , wherein the controller is further configured to:
display, on the display, the lock released scr

Assignees

• Lg Electronics Inc

Inventors

• Shim Hongjo
• Lim Gukchan
• Sohn Youngho
• Kim Seonghyok
• Kwon Chohee
• Kim Hyunwoo

Classifications

• G06F3/0483

  Interaction with page-structured environments, e.g. book metaphor · CPC title

• G06F1/1684

  Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 · CPC title

• G06F1/1694

  the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer · CPC title

• H04N21/42201

  biosensors, e.g. heat sensor for presence detection, EEG sensors or any limb activity sensors worn by the user (input arrangements for interaction with the human body based on nervous system activity detection G06F3/015) · CPC title

• G06F21/32

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title