Reverse battery protection device and operating method thereof

• US 10,031,484 B2
• Filed: 05/27/2016
• Issued: 07/24/2018
• 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): Natnithithadha, Navin
• Assistant Examiner(s): MESSERSMITH, ERIC J
• Application Number:
  US15/167,874
• Publication Number:
  US 20160287109A1
• Time in Patent Office: 788 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 main body including a display;

a strap connected to the main body; and

a heartbeat sensor including;

a light emitting unit configured to emit light and a light receiving unit configured to detect reflected light of the emitted light, wherein the heartbeat sensor is centrally located within the main body;

a first layer having a first side and a second side, wherein the first side faces the light emitting unit and the light receiving unit, wherein the first layer includes;

a plurality of openings, each respectively positioned to be aligned with one of the light emitting unit or the light receiving unit to permit passage of light; and

a first partition disposed between the plurality of openings to separate the plurality of openings from each other;

a protruding part extending from the first partition in a direction that is away from the first side of the first layer, wherein an end of the protruding part faces a direction that is opposite to a direction that the light emitting unit faces; and

a second layer disposed on the second side of the first layer, the second layer including;

a plurality of windows positioned to be aligned with the plurality of openings of the first layer, respectively; and

a second partition disposed between the plurality of windows to separate the plurality of windows from each other,

wherein one side of the second partition is positioned to be adjacent to the first partition,

wherein a width of the first partition is greater than a width of the second partition, and

wherein, when the first layer is placed on the heart beat sensor, the protruding part is positioned between the light emitting unit and the light receiving unit.

2. The wearable device of claim 1, wherein

the light emitting unit is positioned relative to the second layer to permit the emitted light to propagate through a window of the plurality of windows, and wherein

the light receiving unit is positioned relative to the second layer to permit the reflected light to be received after passing through a window of the plurality of windows.

3. The wearable device of claim 1, wherein the second layer includes a circular shape and is centrally located within the main body.

4. The wearable device of claim 1, further comprising:

a controller configured to;

determine, according to the emitted light and the detected reflected light, that the wearable device is in a first state, during which the wearable device is worn by a user, or that the wearable device is in a second state, during which the wearable device is not worn by the user.

5. The wearable device of claim 4, wherein the controller is further configured to:

execute a first function after determining that the wearable device is in the first state; and

execute a second function after determining that the wearable device is in the second state.

6. The wearable device of claim 1, wherein each of the plurality of openings has a circular shape.

7. The wearable device of claim 1, wherein each of the plurality of windows has a circular shape.

8. The wearable device of claim 1, further comprising a support part positioned adjacent to a side of the second layer, wherein the support part is positioned between an outer edge of the first layer and an outer edge of the second layer.

9. The wearable device of claim 1, further comprising a support part positioned adjacent to a side of the second layer and adjacent to an edge of the first layer.

10. The wearable device of claim 1, wherein the first layer includes material that blocks light.

11. The wearable device of claim 1, wherein the first layer includes plastic material.

12. The wearable device of claim 1, wherein the second layer includes plastic material to block light.

13. The wearable device of claim 1, further comprising plastic material on the second layer.

14. The wearable device of claim 1, wherein the plurality of windows include glass or plastic which is transparent.

15. The wearable device of claim 1, wherein a width of the protruding part is narrower than a width of the first partition.

16. The wearable device of claim 1, wherein a diameter of the second layer is greater than a diameter of the first layer.

17. The wearable device of claim 1, wherein the second partition is integrally formed with the second layer, and wherein the second partition and the second layer are formed from a same material.