摘要:
A photoplethysmography (PPG) sensor includes: a conductive member contacting with the skin of a user; a luminous element disposed on the conductive member to emit light towards the skin of the user through the conductive member; and a photo detector detecting the light emitted towards the skin of the user.
摘要:
A biosignal measurement apparatus including: a headset; a member being detachable from the headset, and being attached onto an ear of a user; a PPG sensor being attached onto the member to detect a PPG signal from the ear of the user; and an acceleration sensor being attached onto the member to detect an acceleration signal due to a motion of the user from the ear of the user is provided.
摘要:
An optical sensor biosignal measurement apparatus including an optical sensor having a luminous element to emit light towards the skin of a user and a photo detector to detect light from the skin of the user; a light quantity adjustment member to adjust an optical transmission area of the photo detector; and a light quantity controller to detect the quantity of light detected by the photo detector, and control the light quantity adjustment member to adjust the optical transmission area of the photo detector according to the quantity of light is provided.
摘要:
An optical sensor biosignal measurement apparatus including an optical sensor having a luminous element to emit light towards the skin of a user and a photo detector to detect light from the skin of the user; a light quantity adjustment member to adjust an optical transmission area of the photo detector; and a light quantity controller to detect the quantity of light detected by the photo detector, and control the light quantity adjustment member to adjust the optical transmission area of the photo detector according to the quantity of light is provided.
摘要:
A system for determining application of an adaptive filter includes a signal sensor to sense a detection signal; an adaptive filter to filter the sensed signal adaptively; and a module for determining application of an adaptive filter to analyze the sensed signal and the filtered signal and to determine application of the adaptive filter to the sensed signal based on the analyzed result.
摘要:
A system for determining application of an adaptive filter includes a signal sensor to sense a detection signal; an adaptive filter to filter the sensed signal adaptively; and a module for determining application of an adaptive filter to analyze the sensed signal and the filtered signal and to determine application of the adaptive filter to the sensed signal based on the analyzed result.
摘要:
A pulse measurement device for more precisely measuring a pulse, including a sensing unit to sense a photoplethysmography (PPG) signal and an acceleration signal obtained from a user, a pressure control unit to control pressure applied to the sensing unit, and a signal determination unit to determine an optimum pressure range by analyzing the PPG signal varying with a change of the pressure applied to the sensing unit by the pressure control unit and to determine an exercise level of the user by using the acceleration signal.
摘要:
A noise removal method and system using a change in activity pattern, in which it is recognized that noise components exist in different frequency bands and different filters for removing noise are stored according to each activity pattern, thereby optimally removing the noise components. A method of removing noise by using a change in an activity pattern includes: recognizing an activity pattern of the subject using an activity sensor; sensing a first bio signal corresponding to the activity pattern from the subject using an electric potential sensor; recognizing a noise generation pattern according to the activity pattern by analyzing a noise component for each section of the first bio signal; selecting filter information for each section according to the noise generation pattern; storing the filter information selected for each section in association with the activity pattern; and removing noise from a second bio signal sensed from the subject by applying the stored filter information.
摘要:
A pulse measurement device for more precisely measuring a pulse, including a sensing unit to sense a photoplethysmography (PPG) signal and an acceleration signal obtained from a user, a pressure control unit to control pressure applied to the sensing unit, and a signal determination unit to determine an optimum pressure range by analyzing the PPG signal varying with a change of the pressure applied to the sensing unit by the pressure control unit and to determine an exercise level of the user by using the acceleration signal.
摘要:
A motion detector and method with low power consumption in an inertia sensor. The motion detector is selectively supplied with power for operation of the inertia sensor according to a power control signal. While the inertia sensor is supplied with power, three-dimensional analog signals are sampled, A/D converted, and outputted via a controller. A pulse width of the power control signal is determined by reflecting the sampling and A/D conversion period and reflecting the operation preparing period of the inertia sensor from the A/D converted value.