ELECTRONIC APPARATUS AND CONTROL METHOD

• US 20160058374A1
• Filed: 02/27/2015
• Published: 03/03/2016
• Est. Priority Date: 08/27/2014
• Status: Active Grant

• Current Assignee: Toshiba Client Solutions CO., Ltd. (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Matsuno, Takaya, Sudo, Takashi, Kanishima, Yasuhiro
• Granted Patent: US 9,808,197 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/7285 for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal A61B6/5205, A61B6/541, A61B8/5207, A61B8/543 take precedence

Abstract

According to one embodiment, a wearable electronic apparatus detects movement of a human body wearing the apparatus. The apparatus causes a first number of light emitters to emit light when a magnitude of the detected movement is less than a first value. The first number of light emitters is among a plurality of light emitters which emit light having different wavelengths, in which the light are received by a light receiver to obtain physiological information. The apparatus causes a second number greater than the first number of light emitters among the plurality of light emitters to emit light when the magnitude of the detected movement is greater than or equal to the first value.

Claims

1. A wearable electronic apparatus, comprising:

a plurality of light emitters to emit light having different wavelengths;

a light receiver to receive reflected light or transmitted light emitted from the light emitters, the reflected light from a human body wearing the apparatus, the transmitted light passing through the human body;

an acquisition processor to acquire physiological information on the human body wearing the apparatus based on the reflected light or the transmitted light received by the light receiver;

a sensor to detect movement of the human body wearing the apparatus; and

a controller to cause a first number of the light emitters to emit light when a magnitude of the movement detected by the sensor is less than a first value, and to cause a second number greater than the first number of the light emitters to emit light when the magnitude of the movement detected by the sensor is greater than or equal to the first value, the light emitters of the second number comprising the light emitters of the first number.

2. The apparatus of claim 1, wherein paths of the light emitted from the light emitters to the light receiver are substantially equidistant.

3. The apparatus of claim 2, wherein the light emitters are on a circumference of the light receiver.

4. The apparatus of claim 1, wherein the light emitters of the first number comprise a light emitter with a wavelength corresponding to red light and a light emitter with a wavelength corresponding to infrared light.

5. The apparatus of claim 1, wherein the controller causes a third number greater than the second number of the light emitters to emit light when the magnitude of the movement detected by the sensor is greater than or equal to a second value greater than the first value, the light emitters of the third number comprising the light emitters of the second number.

6. The apparatus of claim 1, wherein the sensor comprises an acceleration sensor and/or an ambient light sensor.

7. The apparatus of claim 1, wherein the acquisition processor acquires a pulse and/or a peripheral capillary oxygen saturation as the physiological information.

8. A method of controlling a wearable electronic apparatus, the method comprising:

causing a plurality of light emitters to emit light having different wavelengths;

receiving reflected light or transmitted light from the light emitters, the reflected light from a human body wearing the apparatus, the transmitted light passing through the human body;

acquiring physiological information on the human body wearing the apparatus based on the reflected light or the transmitted light;

detecting movement of the human body wearing the apparatus; and

causing a first number of the light emitters to emit light when a magnitude of the movement detected by the sensor is less than a first value, and causing a second number greater than the first number of the light emitters to emit light when the magnitude of the movement detected by the sensor is greater than or equal to the first value, the light emitters of the second number comprising the light emitters of the first number.