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1. WO2021077807 - AMBIENT LIGHT SIGNAL ADJUSTMENT METHOD, CHIP AND ELECTRONIC DEVICE

Publication Number WO/2021/077807
Publication Date 29.04.2021
International Application No. PCT/CN2020/100991
International Filing Date 09.07.2020
IPC
A61B 5/024 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
02Measuring pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography; Heart catheters for measuring blood pressure
024Measuring pulse rate or heart rate
A61B 5/0245 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
02Measuring pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography; Heart catheters for measuring blood pressure
024Measuring pulse rate or heart rate
0245using sensing means generating electric signals
CPC
A61B 2560/0204
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2560Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
02Operational features
0204of power management
A61B 2560/0247
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2560Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
02Operational features
0242adapted to measure environmental factors, e.g. temperature, pollution
0247for compensation or correction of the measured physiological value
A61B 2562/0238
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2562Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
02Details of sensors specially adapted for in-vivo measurements
0233Special features of optical sensors or probes classified in A61B5/00
0238Optical sensor arrangements for performing transmission measurements on body tissue
A61B 2562/185
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2562Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
18Shielding or protection of sensors from environmental influences, e.g. protection from mechanical damage
185Optical shielding, e.g. baffles
A61B 5/0082
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
0082adapted for particular medical purposes
A61B 5/02416
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
024Detecting, measuring or recording pulse rate or heart rate
02416using photoplethysmograph signals, e.g. generated by infra-red radiation
Applicants
  • 深圳市汇顶科技股份有限公司 SHENZHEN GOODIX TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 刘畅 LIU, Chang
Agents
  • 北京同立钧成知识产权代理有限公司 LEADER PATENT & TRADEMARK FIRM
Priority Data
201911021430.025.10.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) AMBIENT LIGHT SIGNAL ADJUSTMENT METHOD, CHIP AND ELECTRONIC DEVICE
(FR) PROCÉDÉ DE RÉGLAGE DE SIGNAL DE LUMIÈRE AMBIANTE, PUCE ET DISPOSITIF ÉLECTRONIQUE
(ZH) 环境光信号调节方法、芯片及电子装置
Abstract
(EN)
An ambient light signal adjustment method, a chip, and an electronic device, the method comprising: receiving a first ambient light signal (S101), the first ambient light signal being the ambient light signal acquired by a photoplethysmography (PPG) sensor; automatically determining, according to the intensity of the first ambient light signal, whether to turn on an ambient light cancellation circuit, the ambient light cancellation circuit being configured to adjust the first ambient light signal according to the intensity of the first ambient light signal (S102); and if yes, automatically adjusting the cancellation signal intensity of the ambient light cancellation circuit according to the intensity of the first ambient light signal to make the intensity of the adjusted first ambient light signal fall within a preset range (S103), so that the ambient light signal acquired by the PPG sensor is adjusted, thereby ensuring the accuracy of user physiological characteristic detection by a wearable device.
(FR)
Procédé de réglage de signal de lumière ambiante, puce et dispositif électronique, le procédé consistant : à recevoir un premier signal de lumière ambiante (S101), le premier signal de lumière ambiante étant le signal de lumière ambiante acquis par un capteur de photopléthysmographie (PPG) ; à déterminer automatiquement, en fonction de l'intensité du premier signal de lumière ambiante, s’il convient d’allumer un circuit d'annulation de lumière ambiante, le circuit d'annulation de lumière ambiante étant conçu pour régler le premier signal de lumière ambiante en fonction de l'intensité du premier signal de lumière ambiante (S102) ; et si tel est le cas, à régler automatiquement l'intensité de signal d'annulation du circuit d'annulation de lumière ambiante en fonction de l'intensité du premier signal de lumière ambiante pour que l'intensité du premier signal de lumière ambiante réglé s’inscrive dans une plage prédéfinie (S103), de sorte que le signal de lumière ambiante acquis par le capteur de PPG soit réglé, ce qui permet d'assurer la précision de détection d’une caractéristique physiologique de l'utilisateur par un dispositif pouvant être porté.
(ZH)
一种环境光信号调节方法、芯片及电子装置,包括:接收第一环境光信号(S101),第一环境光信号为通过光电容积描记PPG传感器获取的环境光信号;根据第一环境光信号的强度,自动判断是否开启环境光抵消电路,环境光抵消电路用于根据第一环境光信号的强度调节第一环境光信号(S102);若判断开启环境光抵消电路,则根据第一环境光信号的强度,自动调节环境光抵消电路的抵消信号强度,以使调节后的第一环境光信号的强度在预设范围之内(S103)。实现了对PPG传感器获取到的环境光信号的调节,进而保证了可穿戴设备对用户生理特征检测的准确性。
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