Reverse battery protection device and operating method thereof

• US 9,891,590 B2
• Filed: 10/01/2015
• Issued: 02/13/2018
• Est. Priority Date: 10/08/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Shim, Hongjo, Lim, Gukchan, Sohn, Youngho, Kim, Seonghyok, Kwon, Chohee, Kim, Hyunwoo
• Primary Examiner(s): Kim, Tae
• Application Number:
  US14/872,852
• Publication Number:
  US 20160103985A1
• Time in Patent Office: 866 Days
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/684 Indicating the position of the sensor on the body
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G04B 47/063 measuring physiological quantities, e.g. pedometers, heart-rate sensors, blood pressure gauges and the like
• CPC Class Codes: G04G 21/00 Input or output devices integrated in time-pieces
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: G06F 1/1684 Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
• CPC Class Codes: G06F 1/1694 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 Class Codes: G06F 21/316 by observing the pattern of computer usage, e.g. typical user behaviour
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 3/01 Input arrangements or combined input and output arrangements for interaction between user and computer G06F3/16 takes precedence
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G06F 3/03547 Touch pads, in which fingers can move on a surface
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/042 : by opto-electronic means
• CPC Class Codes: G06F 3/04817 : using icons graphical or visual programming using iconic symbols G06F8/34
• CPC Class Codes: G06F 3/0482 : Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/0483 : Interaction with page-structured environments, e.g. book metaphor
• CPC Class Codes: G06F 3/0487 : using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
• CPC Class Codes: G06F 3/04883 : for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: H04N 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/42201 : 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 Class Codes: H04N 21/42202 : environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
• CPC Class Codes: H05K 5/0017 : with operator interface units

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.

Claims

1. A wearable device comprising:

a touch screen configured to display information;

an acceleration sensor configured to generate an acceleration signal;

an optical sensor comprising a light source and configured to generate a touch interrupt signal; and

a control unit configured to;

determine a wearing state of the wearable device based on the acceleration signal or the touch interrupt signal, the wearing state comprising a not-wearing state, a wrist-wearing state, or a hand-gripping state; and

execute a function corresponding to the determined wearing state;

display a first screen representing that the touch screen is turned off if the wearable device is in the not-wearing state,

display a second screen representing a watch screen if the wearable device is in the wrist wearing state, and

display a third screen including notification information if the wearable device is in the hand gripping state,

wherein each of the first screen, the second screen and the third screen is a lock screen or a lock release screen,

the lock screen is a screen for limiting an access of an application in the wearable device, and

the lock release screen is a screen for allowing the access of the application in the wearable device.

2. The wearable device of claim 1, wherein the control unit is further configured to cause the touch screen to change the black screen or the ambient screen to a standby screen when a tilting movement of the wearable device is detected.

3. The wearable device of claim 1, wherein:

the acceleration signal comprises an Absolute Motion Detection (AMD) signal and a Relative Motion Detection (RMD) signal corresponding to different types of movements; and

the control unit is further configured to determine the wearing state based on the AMD signal and the RMD signal.

4. The wearable device of claim 3, wherein the control unit is further configured to determine the wrist-wearing state and the hand-gripping state based on the touch interrupt signal.

5. The wearable device of claim 3, wherein the optical sensor is further configured to generate the touch interrupt signal when the wearing state is determined based on the AMD signal and the RMD signal.

6. The wearable device of claim 1, wherein the control unit is further configured to cause the touch screen to:

display detailed content of the missed message in response to a knock code command input while the standby screen is displayed.

7. The wearable device of claim 1, wherein:

the optical sensor is further configured to generate a heartbeat signal; and

the function corresponding to the wrist-wearing state comprises;

causing the touch screen to display a standby screen;

causing the touch screen to change the standby screen to an ambient screen when a predetermined time elapses after a lock is released;

causing the touch screen to change the ambient screen to a standby screen comprising information provided by a content provider when a tilting movement of the wearable device is detected;

performing user authentication using the heartbeat signal; and

causing the touch screen to display detailed content related to the information provided by the content provider when the user authentication is successful.

8. The wearable device of claim 1, wherein the function corresponding to the wrist-wearing state comprises causing the touch screen to:

display a black screen; and

change the black screen to either an ambient screen in a lock-released state or a standby screen based on a previous occurrence of a one-time lock-release event,

wherein the black screen is changed in response to a double tap input.

9. The wearable device of claim 1, wherein:

the optical sensor is further configured to generate a heartbeat signal; and

the function corresponding to the wrist-wearing state comprises;

causing the touch screen to display a black screen;

performing user authentication using the heartbeat signal; and

causing the touch screen to change the black screen to either an ambient screen in a lock-released state or a standby screen based on whether the user authentication is successful and a previous occurrence of a lock-release event.

10. The wearable device of claim 1, wherein the function corresponding to the non-wearing state comprises causing the touch screen to:

display a black screen; and

change the black screen to a standby screen in response to a knock code or a lock pattern input.

11. The wearable device of claim 1, wherein the function corresponding to the wrist-wearing state comprises:

causing the touch screen to display a black screen; and

executing a predetermined application in response to a drag touch along a specific portion of the black screen.

12. The wearable device of claim 1, wherein the control unit is further configured to:

cause the touch screen to display at least one connectivity type when the wearing state is changed from the wrist-wearing state to the not-wearing state; and

deactivate a selected one of the at least one connectivity type in response to a selection input to the displayed selected one connectivity type.

13. The wearable device of claim 12, wherein the displayed at least one connectivity type comprises at least Wi-Fi, Bluetooth, or NFC.

14. The wearable device of claim 1, wherein the function corresponding to the wrist-wearing state comprises causing the touch screen to:

display a standby screen in a lock-released state in response to a lock release operation;

change the standby screen to an ambient screen in a lock-released state when a predetermined time elapses; and

change the ambient screen back to the standby screen in the lock-released state in response to a double tap input to the displayed ambient screen;

wherein the ambient screen is displayed with a lower brightness than the standby screen.

15. The wearable device of claim 1, wherein the optical sensor comprises a heartbeat sensor.

16. A control method of a wearable device, the method comprising:

determining a wearing state of the wearable device based on an acceleration signal or a touch interrupt signal, the wearing state comprising a not-wearing state, a wrist-wearing state, or a hand-gripping state; and

executing a function corresponding to the determined wearing state,

wherein the executing the function comprises

displaying a first screen representing that the touch screen is turned off if the wearable device is in the not-wearing state,

displaying a second screen representing a watch screen if the wearable device is in the wrist wearing state, and

displaying a third screen including notification information if the wearable device is in the hand gripping state,

wherein each of the first screen, the second screen and the third screen is a lock screen or a lock release screen,

the lock screen is a screen for limiting an access of an application in the wearable device, and

the lock release screen is a screen for allowing the access of the application in the wearable device.

17. The method of claim 16, wherein the function corresponding to the wrist-wearing state comprises:

displaying a standby screen;

receiving a heartbeat signal;

changing the standby screen to an ambient screen when a predetermined time elapses after a lock is released;

changing the ambient screen to a standby screen comprising information provided by a content provider when a tilting movement of the wearable device is detected;

performing user authentication using the heartbeat signal; and

displaying detailed content related to the information provided by the content provider when the user authentication is successful.

18. The method of claim 16, wherein the function corresponding to the wrist-wearing state comprises:

displaying the black screen;

receiving a heartbeat signal;

performing user authentication using the heartbeat signal; and

changing the black screen to either a lock-released ambient screen or a standby screen based on whether the user authentication is successful and a previous occurrence of a lock-release event.

19. The method of claim 16, wherein the function corresponding to the wrist-wearing state comprises:

displaying a standby screen in a lock-released state in response to a lock release operation;

changing the standby screen to the ambient screen in a lock-released state when a predetermined time elapses; and

changing the ambient screen back to the standby screen in the lock-released state in response to a double tap input to the displayed ambient screen;

wherein the ambient screen is displayed with a lower brightness than the standby screen.