Patent ID: 8195261
Filing Date: 2012-06-05
Classification: A61B

Abstract:
1. A vital information measuring device comprising: a first light emitter for outputting light having a first wavelength; a second light emitter for outputting light having a second wavelength different from the first wavelength; a light detector for detecting the light outputted from the first light emitter and the light outputted from the second light emitter; an emission controller for controlling the first light emitter to emit the light at a first sampling frequency and the second light emitter to emit the light at a second sampling frequency based on a relationship between an emission timing of the first light emitter and an emission timing of the second light emitter having phases displaced from each other, wherein the emission controller sets the first sampling frequency to an integral multiple of the second sampling frequency using an integer greater than one; a detection controller for controlling the light detector to detect the light from the first light emitter and the light from second light emitter in synchronism with the emission timing of the first light emitter and the emission timing of the second light emitter, respectively; and a storage for storing therein a light detection signal outputted from the light detector as measurement data; a first analyzer for performing a first analysis based on only first measurement data obtained by using the first light emitter and stored in the storage; and a second analyzer for performing a second analysis based on second measurement data obtained by using the second light emitter and stored in the storage, and third measurement data which is extracted out of the first measurement data at a predetermined time interval corresponding to the second sampling frequency.