Electronic device and control method thereof

Patent metadata

Field	Value
Publication number	US-2019369726-A1
Application number	US-201716461178-A
Country	US
Kind code	A1
Filing date	Nov 16, 2017
Priority date	Nov 16, 2016
Publication date	Dec 5, 2019
Grant date	—

Abstract

An electronic device is disclosed. The electronic device comprises: a biological signal input unit for receiving the input of a biological signal detected through an electrode; and a processor which determines, based on a usage context of the electronic device, a biological signal to be inputted, sets up, according to the determined biological signal, the state of a channel corresponding to the electrode, and determines a biological change by using the biological signal inputted according to the set channel state.

First claim

1 . An electronic device comprising:
a biological signal inputter configured to receive a biological signal sensed through an electrode; and a processor configured to:
determine a biological signal to be input based on a context of the electronic device,
set a state of a channel corresponding to the electrode according to the determined biological signal, and
determine a biological change using the biological signal input according to the set state of the channel

2 . The electronic device as claimed in claim 1 , wherein the processor is configured to activate the channel corresponding to the electrode for sensing the determined biological signal and deactivates a channel other than the channel corresponding to the electrode for sensing the determined biological signal.

3 . The electronic device as claimed in claim 1 , wherein the processor is configured to determine the biological change through a channel corresponding to at least one electrode corresponding to a specific body part according to the context of the electronic device.

4 . The electronic device as claimed in claim 1 ,
wherein the electrode comprises a first electrode used for sensing a first biological signal, and a second electrode used for sensing a second biological signal, and wherein the processor is configured to:
when the determined biological signal is the first biological signal, select a channel corresponding to the first electrode as a channel to receive the biological signal, and based on a characteristic of the first biological signal, set a state of the channel corresponding to the first electrode, and
when the determined biological signal is the second biological signal, select a channel corresponding to the second electrode as the channel to receive the biological signal and based on a characteristic of the second biological signal, set a state of the channel corresponding to the second electrode.

5 . The electronic device as claimed in claim 4 ,
wherein the first electrode is used to sense a safety signal at a left side, a right side and an upper side of user's eyes, and wherein the second electrode is used to sense an EMG signal at a lower side of the user's eyes.

6 . The electronic device as claimed in claim 1 ,
wherein the electrode comprises a common electrode used for sensing any one of a plurality of biological signals determined based on the context of the electronic device, and wherein the processor is configured to select a channel corresponding to the common electrode as a channel to receive the determined biological signal, and set a state of the channel corresponding to the common electrode based on a characteristic of the determined biological signal.

7 . The electronic device as claimed in claim 6 , wherein the common electrode is used for sensing any one biological signal of a safety signal and an EMG signal at a lower side of user's eyes.

8 . The electronic device as claimed in claim 1 , wherein the biological signal comprises at least one of an electromyogram (EMG) signal, an electrooculogram (EOG) signal, an electroencephalogram (EEG) signal, an electrocardiogram (ECG) signal, a Galvanic skin response (GSR) signal, and a bioelectric impedance analysis (BIA) signal.

9 . The electronic device as claimed in claim 1 , wherein the processor is configured to set at least one of a sampling rate, an analog-digital converter (ADC) resolution, and the cutoff frequency of the channel corresponding to an electrode for sensing the determined biological signal based on a characteristic of the determined biological signal.

10 . The electronic device as claimed in claim 1 , further comprising: an outputter,
wherein the processor is configured to control the outputter to output a result according to the determined biological change.

11 . The control method as claimed in claim 10 ,
wherein the outputter comprises a display, and wherein the processor is configured to control a screen of the display according to the determined biological change.

12 . The control method as claimed in claim 11 ,
wherein the context of the electronic device comprises a display state of the display, and wherein the processor is configured to, when the screen of the display is a screen for requesting user authentication using a mouth shape at the time of an utterance, determine an EMG signal around a user's mouth as the biological signal to be input, and determine the biological change through the channel corresponding to the electrode for sensing the EMG signal.

13 . A control method of an electronic device, the control method comprising:
determining a biological signal to be input based on a context of the electronic device; setting a state of a channel corresponding to an electrode for sensing the determined biological signal according to the determined biological signal; and determining a biological change using a biological signal input according to the set state of the channel

14 . The control method as claimed in claim 13 , wherein the setting comprises:
activating the channel corresponding to the electrode for sensing the determined biological signal and deactivating a channel other than the channel corresponding to the electrode for sensing the determined biological signal.

15 . The control method as claimed in claim 13 ,
wherein the electrode comprises a first electrode used for sensing a first biological signal, and a second electrode used for sensing a second biological signal, and wherein the setting comprises: when the determined biological signal is the first biological signal, selecting a channel corresponding to the first electrode as a channel to receive the biological signal, and based on a characteristic of the first biological signal and setting a state of the channel corresponding to the first electrode, when the determined biological signal is the second biological signal, selecting a channel corresponding to the second electrode as the channel to receive the biological signal and based on a characteristic of the second biological signal and setting a state of the channel corresponding to the second electrode.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kang Hyuk
• Yoo Jae-Bong
• Lim Kyung-Soo
• Hong Duk-Ki

Classifications

• A61B5/0533

  Measuring galvanic skin response · CPC title

• A61B5/6803

  Head-worn items, e.g. helmets, masks, headphones or goggles · CPC title

• A61B2503/12

  Healthy persons not otherwise provided for, e.g. subjects of a marketing survey · CPC title

• A61B5/053

  Measuring electrical impedance or conductance of a portion of the body · CPC title

• G06F3/015 Primary

  Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection · CPC title